diff --git a/src/ast/array_accessor_expression_test.cc b/src/ast/array_accessor_expression_test.cc
index d24bb4ddab..92b38fa270 100644
--- a/src/ast/array_accessor_expression_test.cc
+++ b/src/ast/array_accessor_expression_test.cc
@@ -27,19 +27,16 @@ TEST_F(ArrayAccessorExpressionTest, Create) {
   auto* ary = create<IdentifierExpression>("ary");
   auto* idx = create<IdentifierExpression>("idx");
 
-  auto* ary_ptr = ary;
-  auto* idx_ptr = idx;
-
-  ArrayAccessorExpression exp(std::move(ary), std::move(idx));
-  ASSERT_EQ(exp.array(), ary_ptr);
-  ASSERT_EQ(exp.idx_expr(), idx_ptr);
+  ArrayAccessorExpression exp(ary, idx);
+  ASSERT_EQ(exp.array(), ary);
+  ASSERT_EQ(exp.idx_expr(), idx);
 }
+
 TEST_F(ArrayAccessorExpressionTest, CreateWithSource) {
   auto* ary = create<IdentifierExpression>("ary");
   auto* idx = create<IdentifierExpression>("idx");
 
-  ArrayAccessorExpression exp(Source{Source::Location{20, 2}}, std::move(ary),
-                              std::move(idx));
+  ArrayAccessorExpression exp(Source{Source::Location{20, 2}}, ary, idx);
   auto src = exp.source();
   EXPECT_EQ(src.range.begin.line, 20u);
   EXPECT_EQ(src.range.begin.column, 2u);
@@ -54,7 +51,7 @@ TEST_F(ArrayAccessorExpressionTest, IsValid) {
   auto* ary = create<IdentifierExpression>("ary");
   auto* idx = create<IdentifierExpression>("idx");
 
-  ArrayAccessorExpression exp(std::move(ary), std::move(idx));
+  ArrayAccessorExpression exp(ary, idx);
   EXPECT_TRUE(exp.IsValid());
 }
 
@@ -62,7 +59,7 @@ TEST_F(ArrayAccessorExpressionTest, IsValid_MissingArray) {
   auto* idx = create<IdentifierExpression>("idx");
 
   ArrayAccessorExpression exp;
-  exp.set_idx_expr(std::move(idx));
+  exp.set_idx_expr(idx);
   EXPECT_FALSE(exp.IsValid());
 }
 
@@ -70,21 +67,21 @@ TEST_F(ArrayAccessorExpressionTest, IsValid_MissingIndex) {
   auto* ary = create<IdentifierExpression>("ary");
 
   ArrayAccessorExpression exp;
-  exp.set_array(std::move(ary));
+  exp.set_array(ary);
   EXPECT_FALSE(exp.IsValid());
 }
 
 TEST_F(ArrayAccessorExpressionTest, IsValid_InvalidArray) {
   auto* ary = create<IdentifierExpression>("");
   auto* idx = create<IdentifierExpression>("idx");
-  ArrayAccessorExpression exp(std::move(ary), std::move(idx));
+  ArrayAccessorExpression exp(ary, idx);
   EXPECT_FALSE(exp.IsValid());
 }
 
 TEST_F(ArrayAccessorExpressionTest, IsValid_InvalidIndex) {
   auto* ary = create<IdentifierExpression>("ary");
   auto* idx = create<IdentifierExpression>("");
-  ArrayAccessorExpression exp(std::move(ary), std::move(idx));
+  ArrayAccessorExpression exp(ary, idx);
   EXPECT_FALSE(exp.IsValid());
 }
 
@@ -92,7 +89,7 @@ TEST_F(ArrayAccessorExpressionTest, ToStr) {
   auto* ary = create<IdentifierExpression>("ary");
   auto* idx = create<IdentifierExpression>("idx");
 
-  ArrayAccessorExpression exp(std::move(ary), std::move(idx));
+  ArrayAccessorExpression exp(ary, idx);
   std::ostringstream out;
   exp.to_str(out, 2);
 
diff --git a/src/ast/assignment_statement_test.cc b/src/ast/assignment_statement_test.cc
index 6be673e3e9..fa01c7ea6f 100644
--- a/src/ast/assignment_statement_test.cc
+++ b/src/ast/assignment_statement_test.cc
@@ -27,20 +27,16 @@ TEST_F(AssignmentStatementTest, Creation) {
   auto* lhs = create<ast::IdentifierExpression>("lhs");
   auto* rhs = create<ast::IdentifierExpression>("rhs");
 
-  auto* lhs_ptr = lhs;
-  auto* rhs_ptr = rhs;
-
-  AssignmentStatement stmt(std::move(lhs), std::move(rhs));
-  EXPECT_EQ(stmt.lhs(), lhs_ptr);
-  EXPECT_EQ(stmt.rhs(), rhs_ptr);
+  AssignmentStatement stmt(lhs, rhs);
+  EXPECT_EQ(stmt.lhs(), lhs);
+  EXPECT_EQ(stmt.rhs(), rhs);
 }
 
 TEST_F(AssignmentStatementTest, CreationWithSource) {
   auto* lhs = create<ast::IdentifierExpression>("lhs");
   auto* rhs = create<ast::IdentifierExpression>("rhs");
 
-  AssignmentStatement stmt(Source{Source::Location{20, 2}}, std::move(lhs),
-                           std::move(rhs));
+  AssignmentStatement stmt(Source{Source::Location{20, 2}}, lhs, rhs);
   auto src = stmt.source();
   EXPECT_EQ(src.range.begin.line, 20u);
   EXPECT_EQ(src.range.begin.column, 2u);
@@ -50,7 +46,7 @@ TEST_F(AssignmentStatementTest, IsAssign) {
   auto* lhs = create<ast::IdentifierExpression>("lhs");
   auto* rhs = create<ast::IdentifierExpression>("rhs");
 
-  AssignmentStatement stmt(std::move(lhs), std::move(rhs));
+  AssignmentStatement stmt(lhs, rhs);
   EXPECT_TRUE(stmt.IsAssign());
 }
 
@@ -58,7 +54,7 @@ TEST_F(AssignmentStatementTest, IsValid) {
   auto* lhs = create<ast::IdentifierExpression>("lhs");
   auto* rhs = create<ast::IdentifierExpression>("rhs");
 
-  AssignmentStatement stmt(std::move(lhs), std::move(rhs));
+  AssignmentStatement stmt(lhs, rhs);
   EXPECT_TRUE(stmt.IsValid());
 }
 
@@ -66,7 +62,7 @@ TEST_F(AssignmentStatementTest, IsValid_MissingLHS) {
   auto* rhs = create<ast::IdentifierExpression>("rhs");
 
   AssignmentStatement stmt;
-  stmt.set_rhs(std::move(rhs));
+  stmt.set_rhs(rhs);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -74,21 +70,21 @@ TEST_F(AssignmentStatementTest, IsValid_MissingRHS) {
   auto* lhs = create<ast::IdentifierExpression>("lhs");
 
   AssignmentStatement stmt;
-  stmt.set_lhs(std::move(lhs));
+  stmt.set_lhs(lhs);
   EXPECT_FALSE(stmt.IsValid());
 }
 
 TEST_F(AssignmentStatementTest, IsValid_InvalidLHS) {
   auto* lhs = create<ast::IdentifierExpression>("");
   auto* rhs = create<ast::IdentifierExpression>("rhs");
-  AssignmentStatement stmt(std::move(lhs), std::move(rhs));
+  AssignmentStatement stmt(lhs, rhs);
   EXPECT_FALSE(stmt.IsValid());
 }
 
 TEST_F(AssignmentStatementTest, IsValid_InvalidRHS) {
   auto* lhs = create<ast::IdentifierExpression>("lhs");
   auto* rhs = create<ast::IdentifierExpression>("");
-  AssignmentStatement stmt(std::move(lhs), std::move(rhs));
+  AssignmentStatement stmt(lhs, rhs);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -96,7 +92,7 @@ TEST_F(AssignmentStatementTest, ToStr) {
   auto* lhs = create<ast::IdentifierExpression>("lhs");
   auto* rhs = create<ast::IdentifierExpression>("rhs");
 
-  AssignmentStatement stmt(std::move(lhs), std::move(rhs));
+  AssignmentStatement stmt(lhs, rhs);
   std::ostringstream out;
   stmt.to_str(out, 2);
 
diff --git a/src/ast/binary_expression_test.cc b/src/ast/binary_expression_test.cc
index 5648bb2c71..7727cbd6fb 100644
--- a/src/ast/binary_expression_test.cc
+++ b/src/ast/binary_expression_test.cc
@@ -29,12 +29,9 @@ TEST_F(BinaryExpressionTest, Creation) {
   auto* lhs = create<IdentifierExpression>("lhs");
   auto* rhs = create<IdentifierExpression>("rhs");
 
-  auto* lhs_ptr = lhs;
-  auto* rhs_ptr = rhs;
-
-  BinaryExpression r(BinaryOp::kEqual, std::move(lhs), std::move(rhs));
-  EXPECT_EQ(r.lhs(), lhs_ptr);
-  EXPECT_EQ(r.rhs(), rhs_ptr);
+  BinaryExpression r(BinaryOp::kEqual, lhs, rhs);
+  EXPECT_EQ(r.lhs(), lhs);
+  EXPECT_EQ(r.rhs(), rhs);
   EXPECT_EQ(r.op(), BinaryOp::kEqual);
 }
 
@@ -42,8 +39,8 @@ TEST_F(BinaryExpressionTest, Creation_WithSource) {
   auto* lhs = create<IdentifierExpression>("lhs");
   auto* rhs = create<IdentifierExpression>("rhs");
 
-  BinaryExpression r(Source{Source::Location{20, 2}}, BinaryOp::kEqual,
-                     std::move(lhs), std::move(rhs));
+  BinaryExpression r(Source{Source::Location{20, 2}}, BinaryOp::kEqual, lhs,
+                     rhs);
   auto src = r.source();
   EXPECT_EQ(src.range.begin.line, 20u);
   EXPECT_EQ(src.range.begin.column, 2u);
@@ -58,7 +55,7 @@ TEST_F(BinaryExpressionTest, IsValid) {
   auto* lhs = create<IdentifierExpression>("lhs");
   auto* rhs = create<IdentifierExpression>("rhs");
 
-  BinaryExpression r(BinaryOp::kEqual, std::move(lhs), std::move(rhs));
+  BinaryExpression r(BinaryOp::kEqual, lhs, rhs);
   EXPECT_TRUE(r.IsValid());
 }
 
@@ -67,7 +64,7 @@ TEST_F(BinaryExpressionTest, IsValid_Null_LHS) {
 
   BinaryExpression r;
   r.set_op(BinaryOp::kEqual);
-  r.set_rhs(std::move(rhs));
+  r.set_rhs(rhs);
   EXPECT_FALSE(r.IsValid());
 }
 
@@ -75,7 +72,7 @@ TEST_F(BinaryExpressionTest, IsValid_Invalid_LHS) {
   auto* lhs = create<IdentifierExpression>("");
   auto* rhs = create<IdentifierExpression>("rhs");
 
-  BinaryExpression r(BinaryOp::kEqual, std::move(lhs), std::move(rhs));
+  BinaryExpression r(BinaryOp::kEqual, lhs, rhs);
   EXPECT_FALSE(r.IsValid());
 }
 
@@ -84,7 +81,7 @@ TEST_F(BinaryExpressionTest, IsValid_Null_RHS) {
 
   BinaryExpression r;
   r.set_op(BinaryOp::kEqual);
-  r.set_lhs(std::move(lhs));
+  r.set_lhs(lhs);
   EXPECT_FALSE(r.IsValid());
 }
 
@@ -92,7 +89,7 @@ TEST_F(BinaryExpressionTest, IsValid_Invalid_RHS) {
   auto* lhs = create<IdentifierExpression>("lhs");
   auto* rhs = create<IdentifierExpression>("");
 
-  BinaryExpression r(BinaryOp::kEqual, std::move(lhs), std::move(rhs));
+  BinaryExpression r(BinaryOp::kEqual, lhs, rhs);
   EXPECT_FALSE(r.IsValid());
 }
 
@@ -100,7 +97,7 @@ TEST_F(BinaryExpressionTest, IsValid_Binary_None) {
   auto* lhs = create<IdentifierExpression>("lhs");
   auto* rhs = create<IdentifierExpression>("rhs");
 
-  BinaryExpression r(BinaryOp::kNone, std::move(lhs), std::move(rhs));
+  BinaryExpression r(BinaryOp::kNone, lhs, rhs);
   EXPECT_FALSE(r.IsValid());
 }
 
@@ -108,7 +105,7 @@ TEST_F(BinaryExpressionTest, ToStr) {
   auto* lhs = create<IdentifierExpression>("lhs");
   auto* rhs = create<IdentifierExpression>("rhs");
 
-  BinaryExpression r(BinaryOp::kEqual, std::move(lhs), std::move(rhs));
+  BinaryExpression r(BinaryOp::kEqual, lhs, rhs);
   std::ostringstream out;
   r.to_str(out, 2);
   EXPECT_EQ(out.str(), R"(  Binary[not set]{
diff --git a/src/ast/bitcast_expression_test.cc b/src/ast/bitcast_expression_test.cc
index 64565d4ed0..3f02451cb3 100644
--- a/src/ast/bitcast_expression_test.cc
+++ b/src/ast/bitcast_expression_test.cc
@@ -28,18 +28,16 @@ TEST_F(BitcastExpressionTest, Create) {
   type::F32Type f32;
   auto* expr = create<IdentifierExpression>("expr");
 
-  auto* expr_ptr = expr;
-
-  BitcastExpression exp(&f32, std::move(expr));
+  BitcastExpression exp(&f32, expr);
   ASSERT_EQ(exp.type(), &f32);
-  ASSERT_EQ(exp.expr(), expr_ptr);
+  ASSERT_EQ(exp.expr(), expr);
 }
 
 TEST_F(BitcastExpressionTest, CreateWithSource) {
   type::F32Type f32;
   auto* expr = create<IdentifierExpression>("expr");
 
-  BitcastExpression exp(Source{Source::Location{20, 2}}, &f32, std::move(expr));
+  BitcastExpression exp(Source{Source::Location{20, 2}}, &f32, expr);
   auto src = exp.source();
   EXPECT_EQ(src.range.begin.line, 20u);
   EXPECT_EQ(src.range.begin.column, 2u);
@@ -54,7 +52,7 @@ TEST_F(BitcastExpressionTest, IsValid) {
   type::F32Type f32;
   auto* expr = create<IdentifierExpression>("expr");
 
-  BitcastExpression exp(&f32, std::move(expr));
+  BitcastExpression exp(&f32, expr);
   EXPECT_TRUE(exp.IsValid());
 }
 
@@ -62,7 +60,7 @@ TEST_F(BitcastExpressionTest, IsValid_MissingType) {
   auto* expr = create<IdentifierExpression>("expr");
 
   BitcastExpression exp;
-  exp.set_expr(std::move(expr));
+  exp.set_expr(expr);
   EXPECT_FALSE(exp.IsValid());
 }
 
@@ -77,7 +75,7 @@ TEST_F(BitcastExpressionTest, IsValid_MissingExpr) {
 TEST_F(BitcastExpressionTest, IsValid_InvalidExpr) {
   type::F32Type f32;
   auto* expr = create<IdentifierExpression>("");
-  BitcastExpression e(&f32, std::move(expr));
+  BitcastExpression e(&f32, expr);
   EXPECT_FALSE(e.IsValid());
 }
 
@@ -85,7 +83,7 @@ TEST_F(BitcastExpressionTest, ToStr) {
   type::F32Type f32;
   auto* expr = create<IdentifierExpression>("expr");
 
-  BitcastExpression exp(&f32, std::move(expr));
+  BitcastExpression exp(&f32, expr);
   std::ostringstream out;
   exp.to_str(out, 2);
 
diff --git a/src/ast/block_statement_test.cc b/src/ast/block_statement_test.cc
index 010b7d49bf..1c25885107 100644
--- a/src/ast/block_statement_test.cc
+++ b/src/ast/block_statement_test.cc
@@ -32,7 +32,7 @@ TEST_F(BlockStatementTest, Creation) {
   auto* ptr = d;
 
   BlockStatement b;
-  b.append(std::move(d));
+  b.append(d);
 
   ASSERT_EQ(b.size(), 1u);
   EXPECT_EQ(b[0], ptr);
@@ -42,21 +42,18 @@ TEST_F(BlockStatementTest, Creation_WithInsert) {
   auto* s1 = create<DiscardStatement>();
   auto* s2 = create<DiscardStatement>();
   auto* s3 = create<DiscardStatement>();
-  auto* p1 = s1;
-  auto* p2 = s2;
-  auto* p3 = s3;
 
   BlockStatement b;
-  b.insert(0, std::move(s1));
-  b.insert(0, std::move(s2));
-  b.insert(1, std::move(s3));
+  b.insert(0, s1);
+  b.insert(0, s2);
+  b.insert(1, s3);
 
   // |b| should contain s2, s3, s1
 
   ASSERT_EQ(b.size(), 3u);
-  EXPECT_EQ(b[0], p2);
-  EXPECT_EQ(b[1], p3);
-  EXPECT_EQ(b[2], p1);
+  EXPECT_EQ(b[0], s2);
+  EXPECT_EQ(b[1], s3);
+  EXPECT_EQ(b[2], s1);
 }
 
 TEST_F(BlockStatementTest, Creation_WithSource) {
diff --git a/src/ast/call_expression_test.cc b/src/ast/call_expression_test.cc
index 885bc87e59..e736cb768a 100644
--- a/src/ast/call_expression_test.cc
+++ b/src/ast/call_expression_test.cc
@@ -29,22 +29,18 @@ TEST_F(CallExpressionTest, Creation) {
   params.push_back(create<IdentifierExpression>("param1"));
   params.push_back(create<IdentifierExpression>("param2"));
 
-  auto* func_ptr = func;
-  auto* param1_ptr = params[0];
-  auto* param2_ptr = params[1];
-
-  CallExpression stmt(std::move(func), std::move(params));
-  EXPECT_EQ(stmt.func(), func_ptr);
+  CallExpression stmt(func, params);
+  EXPECT_EQ(stmt.func(), func);
 
   const auto& vec = stmt.params();
   ASSERT_EQ(vec.size(), 2u);
-  EXPECT_EQ(vec[0], param1_ptr);
-  EXPECT_EQ(vec[1], param2_ptr);
+  EXPECT_EQ(vec[0], params[0]);
+  EXPECT_EQ(vec[1], params[1]);
 }
 
 TEST_F(CallExpressionTest, Creation_WithSource) {
   auto* func = create<IdentifierExpression>("func");
-  CallExpression stmt(Source{Source::Location{20, 2}}, std::move(func), {});
+  CallExpression stmt(Source{Source::Location{20, 2}}, func, {});
   auto src = stmt.source();
   EXPECT_EQ(src.range.begin.line, 20u);
   EXPECT_EQ(src.range.begin.column, 2u);
@@ -52,13 +48,13 @@ TEST_F(CallExpressionTest, Creation_WithSource) {
 
 TEST_F(CallExpressionTest, IsCall) {
   auto* func = create<IdentifierExpression>("func");
-  CallExpression stmt(std::move(func), {});
+  CallExpression stmt(func, {});
   EXPECT_TRUE(stmt.IsCall());
 }
 
 TEST_F(CallExpressionTest, IsValid) {
   auto* func = create<IdentifierExpression>("func");
-  CallExpression stmt(std::move(func), {});
+  CallExpression stmt(func, {});
   EXPECT_TRUE(stmt.IsValid());
 }
 
@@ -74,7 +70,7 @@ TEST_F(CallExpressionTest, IsValid_NullParam) {
   params.push_back(nullptr);
   params.push_back(create<IdentifierExpression>("param2"));
 
-  CallExpression stmt(std::move(func), std::move(params));
+  CallExpression stmt(func, params);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -83,7 +79,7 @@ TEST_F(CallExpressionTest, IsValid_InvalidFunction) {
   ExpressionList params;
   params.push_back(create<IdentifierExpression>("param1"));
 
-  CallExpression stmt(std::move(func), std::move(params));
+  CallExpression stmt(func, params);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -92,13 +88,13 @@ TEST_F(CallExpressionTest, IsValid_InvalidParam) {
   ExpressionList params;
   params.push_back(create<IdentifierExpression>(""));
 
-  CallExpression stmt(std::move(func), std::move(params));
+  CallExpression stmt(func, params);
   EXPECT_FALSE(stmt.IsValid());
 }
 
 TEST_F(CallExpressionTest, ToStr_NoParams) {
   auto* func = create<IdentifierExpression>("func");
-  CallExpression stmt(std::move(func), {});
+  CallExpression stmt(func, {});
   std::ostringstream out;
   stmt.to_str(out, 2);
   EXPECT_EQ(out.str(), R"(  Call[not set]{
@@ -115,7 +111,7 @@ TEST_F(CallExpressionTest, ToStr_WithParams) {
   params.push_back(create<IdentifierExpression>("param1"));
   params.push_back(create<IdentifierExpression>("param2"));
 
-  CallExpression stmt(std::move(func), std::move(params));
+  CallExpression stmt(func, params);
   std::ostringstream out;
   stmt.to_str(out, 2);
   EXPECT_EQ(out.str(), R"(  Call[not set]{
diff --git a/src/ast/call_statement_test.cc b/src/ast/call_statement_test.cc
index 4201fce07f..363918deb9 100644
--- a/src/ast/call_statement_test.cc
+++ b/src/ast/call_statement_test.cc
@@ -27,10 +27,9 @@ using CallStatementTest = TestHelper;
 TEST_F(CallStatementTest, Creation) {
   auto* expr = create<ast::CallExpression>(
       create<ast::IdentifierExpression>("func"), ExpressionList{});
-  auto* expr_ptr = expr;
 
-  CallStatement c(std::move(expr));
-  EXPECT_EQ(c.expr(), expr_ptr);
+  CallStatement c(expr);
+  EXPECT_EQ(c.expr(), expr);
 }
 
 TEST_F(CallStatementTest, IsCall) {
diff --git a/src/ast/case_statement_test.cc b/src/ast/case_statement_test.cc
index bc87b85033..30c298e7d8 100644
--- a/src/ast/case_statement_test.cc
+++ b/src/ast/case_statement_test.cc
@@ -32,38 +32,36 @@ TEST_F(CaseStatementTest, Creation_i32) {
   ast::type::I32Type i32;
 
   CaseSelectorList b;
-  b.push_back(create<SintLiteral>(&i32, 2));
+  auto* selector = create<SintLiteral>(&i32, 2);
+  b.push_back(selector);
 
   auto* body = create<BlockStatement>();
-  body->append(create<DiscardStatement>());
+  auto* discard = create<DiscardStatement>();
+  body->append(discard);
 
-  auto* int_ptr = b.back();
-  auto* discard_ptr = body->get(0);
-
-  CaseStatement c(std::move(b), std::move(body));
+  CaseStatement c(b, body);
   ASSERT_EQ(c.selectors().size(), 1u);
-  EXPECT_EQ(c.selectors()[0], int_ptr);
+  EXPECT_EQ(c.selectors()[0], selector);
   ASSERT_EQ(c.body()->size(), 1u);
-  EXPECT_EQ(c.body()->get(0), discard_ptr);
+  EXPECT_EQ(c.body()->get(0), discard);
 }
 
 TEST_F(CaseStatementTest, Creation_u32) {
   ast::type::U32Type u32;
 
   CaseSelectorList b;
-  b.push_back(create<UintLiteral>(&u32, 2));
+  auto* selector = create<SintLiteral>(&u32, 2);
+  b.push_back(selector);
 
   auto* body = create<BlockStatement>();
-  body->append(create<DiscardStatement>());
+  auto* discard = create<DiscardStatement>();
+  body->append(discard);
 
-  auto* int_ptr = b.back();
-  auto* discard_ptr = body->get(0);
-
-  CaseStatement c(std::move(b), std::move(body));
+  CaseStatement c(b, body);
   ASSERT_EQ(c.selectors().size(), 1u);
-  EXPECT_EQ(c.selectors()[0], int_ptr);
+  EXPECT_EQ(c.selectors()[0], selector);
   ASSERT_EQ(c.body()->size(), 1u);
-  EXPECT_EQ(c.body()->get(0), discard_ptr);
+  EXPECT_EQ(c.body()->get(0), discard);
 }
 
 TEST_F(CaseStatementTest, Creation_WithSource) {
@@ -74,8 +72,7 @@ TEST_F(CaseStatementTest, Creation_WithSource) {
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
 
-  CaseStatement c(Source{Source::Location{20, 2}}, std::move(b),
-                  std::move(body));
+  CaseStatement c(Source{Source::Location{20, 2}}, b, body);
   auto src = c.source();
   EXPECT_EQ(src.range.begin.line, 20u);
   EXPECT_EQ(src.range.begin.column, 2u);
@@ -86,7 +83,7 @@ TEST_F(CaseStatementTest, IsDefault_WithoutSelectors) {
   body->append(create<DiscardStatement>());
 
   CaseStatement c(create<ast::BlockStatement>());
-  c.set_body(std::move(body));
+  c.set_body(body);
   EXPECT_TRUE(c.IsDefault());
 }
 
@@ -96,7 +93,7 @@ TEST_F(CaseStatementTest, IsDefault_WithSelectors) {
   b.push_back(create<SintLiteral>(&i32, 2));
 
   CaseStatement c(create<ast::BlockStatement>());
-  c.set_selectors(std::move(b));
+  c.set_selectors(b);
   EXPECT_FALSE(c.IsDefault());
 }
 
@@ -119,7 +116,7 @@ TEST_F(CaseStatementTest, IsValid_NullBodyStatement) {
   body->append(create<DiscardStatement>());
   body->append(nullptr);
 
-  CaseStatement c(std::move(b), std::move(body));
+  CaseStatement c(b, body);
   EXPECT_FALSE(c.IsValid());
 }
 
@@ -131,7 +128,7 @@ TEST_F(CaseStatementTest, IsValid_InvalidBodyStatement) {
   auto* body = create<BlockStatement>();
   body->append(create<IfStatement>(nullptr, create<ast::BlockStatement>()));
 
-  CaseStatement c({std::move(b)}, std::move(body));
+  CaseStatement c({b}, body);
   EXPECT_FALSE(c.IsValid());
 }
 
@@ -142,7 +139,7 @@ TEST_F(CaseStatementTest, ToStr_WithSelectors_i32) {
 
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
-  CaseStatement c({std::move(b)}, std::move(body));
+  CaseStatement c({b}, body);
 
   std::ostringstream out;
   c.to_str(out, 2);
@@ -159,7 +156,7 @@ TEST_F(CaseStatementTest, ToStr_WithSelectors_u32) {
 
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
-  CaseStatement c({std::move(b)}, std::move(body));
+  CaseStatement c({b}, body);
 
   std::ostringstream out;
   c.to_str(out, 2);
@@ -178,7 +175,7 @@ TEST_F(CaseStatementTest, ToStr_WithMultipleSelectors) {
 
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
-  CaseStatement c(std::move(b), std::move(body));
+  CaseStatement c(b, body);
 
   std::ostringstream out;
   c.to_str(out, 2);
@@ -191,7 +188,7 @@ TEST_F(CaseStatementTest, ToStr_WithMultipleSelectors) {
 TEST_F(CaseStatementTest, ToStr_WithoutSelectors) {
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
-  CaseStatement c(CaseSelectorList{}, std::move(body));
+  CaseStatement c(CaseSelectorList{}, body);
 
   std::ostringstream out;
   c.to_str(out, 2);
diff --git a/src/ast/decorated_variable_test.cc b/src/ast/decorated_variable_test.cc
index 70f1ab7e58..f133a132b9 100644
--- a/src/ast/decorated_variable_test.cc
+++ b/src/ast/decorated_variable_test.cc
@@ -35,7 +35,7 @@ using DecoratedVariableTest = TestHelper;
 TEST_F(DecoratedVariableTest, Creation) {
   type::I32Type t;
   auto* var = create<Variable>("my_var", StorageClass::kFunction, &t);
-  DecoratedVariable dv(std::move(var));
+  DecoratedVariable dv(var);
 
   EXPECT_EQ(dv.name(), "my_var");
   EXPECT_EQ(dv.storage_class(), StorageClass::kFunction);
@@ -50,7 +50,7 @@ TEST_F(DecoratedVariableTest, CreationWithSource) {
   Source s{Source::Range{Source::Location{27, 4}, Source::Location{27, 5}}};
   type::F32Type t;
   auto* var = create<Variable>(s, "i", StorageClass::kPrivate, &t);
-  DecoratedVariable dv(std::move(var));
+  DecoratedVariable dv(var);
 
   EXPECT_EQ(dv.name(), "i");
   EXPECT_EQ(dv.storage_class(), StorageClass::kPrivate);
@@ -64,7 +64,7 @@ TEST_F(DecoratedVariableTest, CreationWithSource) {
 TEST_F(DecoratedVariableTest, NoDecorations) {
   type::I32Type t;
   auto* var = create<Variable>("my_var", StorageClass::kFunction, &t);
-  DecoratedVariable dv(std::move(var));
+  DecoratedVariable dv(var);
   EXPECT_FALSE(dv.HasLocationDecoration());
   EXPECT_FALSE(dv.HasBuiltinDecoration());
   EXPECT_FALSE(dv.HasConstantIdDecoration());
@@ -73,14 +73,14 @@ TEST_F(DecoratedVariableTest, NoDecorations) {
 TEST_F(DecoratedVariableTest, WithDecorations) {
   type::F32Type t;
   auto* var = create<Variable>("my_var", StorageClass::kFunction, &t);
-  DecoratedVariable dv(std::move(var));
+  DecoratedVariable dv(var);
 
   VariableDecorationList decos;
   decos.push_back(create<LocationDecoration>(1, Source{}));
   decos.push_back(create<BuiltinDecoration>(ast::Builtin::kPosition, Source{}));
   decos.push_back(create<ConstantIdDecoration>(1200, Source{}));
 
-  dv.set_decorations(std::move(decos));
+  dv.set_decorations(decos);
 
   EXPECT_TRUE(dv.HasLocationDecoration());
   EXPECT_TRUE(dv.HasBuiltinDecoration());
@@ -90,11 +90,11 @@ TEST_F(DecoratedVariableTest, WithDecorations) {
 TEST_F(DecoratedVariableTest, ConstantId) {
   type::F32Type t;
   auto* var = create<Variable>("my_var", StorageClass::kFunction, &t);
-  DecoratedVariable dv(std::move(var));
+  DecoratedVariable dv(var);
 
   VariableDecorationList decos;
   decos.push_back(create<ConstantIdDecoration>(1200, Source{}));
-  dv.set_decorations(std::move(decos));
+  dv.set_decorations(decos);
 
   EXPECT_EQ(dv.constant_id(), 1200u);
 }
@@ -102,7 +102,7 @@ TEST_F(DecoratedVariableTest, ConstantId) {
 TEST_F(DecoratedVariableTest, IsValid) {
   type::I32Type t;
   auto* var = create<Variable>("my_var", StorageClass::kNone, &t);
-  DecoratedVariable dv(std::move(var));
+  DecoratedVariable dv(var);
   EXPECT_TRUE(dv.IsValid());
 }
 
@@ -114,14 +114,14 @@ TEST_F(DecoratedVariableTest, IsDecorated) {
 TEST_F(DecoratedVariableTest, to_str) {
   type::F32Type t;
   auto* var = create<Variable>("my_var", StorageClass::kFunction, &t);
-  DecoratedVariable dv(std::move(var));
+  DecoratedVariable dv(var);
   dv.set_constructor(create<IdentifierExpression>("expr"));
 
   VariableDecorationList decos;
   decos.push_back(create<BindingDecoration>(2, Source{}));
   decos.push_back(create<SetDecoration>(1, Source{}));
 
-  dv.set_decorations(std::move(decos));
+  dv.set_decorations(decos);
   std::ostringstream out;
   dv.to_str(out, 2);
   EXPECT_EQ(out.str(), R"(  DecoratedVariable{
diff --git a/src/ast/else_statement_test.cc b/src/ast/else_statement_test.cc
index b52cbec095..948a94b4cb 100644
--- a/src/ast/else_statement_test.cc
+++ b/src/ast/else_statement_test.cc
@@ -34,13 +34,12 @@ TEST_F(ElseStatementTest, Creation) {
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
 
-  auto* cond_ptr = cond;
-  auto* discard_ptr = body->get(0);
+  auto* discard = body->get(0);
 
-  ElseStatement e(std::move(cond), std::move(body));
-  EXPECT_EQ(e.condition(), cond_ptr);
+  ElseStatement e(cond, body);
+  EXPECT_EQ(e.condition(), cond);
   ASSERT_EQ(e.body()->size(), 1u);
-  EXPECT_EQ(e.body()->get(0), discard_ptr);
+  EXPECT_EQ(e.body()->get(0), discard);
 }
 
 TEST_F(ElseStatementTest, Creation_WithSource) {
@@ -59,7 +58,7 @@ TEST_F(ElseStatementTest, HasCondition) {
   ast::type::BoolType bool_type;
   auto* cond = create<ScalarConstructorExpression>(
       create<BoolLiteral>(&bool_type, true));
-  ElseStatement e(std::move(cond), create<BlockStatement>());
+  ElseStatement e(cond, create<BlockStatement>());
   EXPECT_TRUE(e.HasCondition());
 }
 
@@ -77,7 +76,7 @@ TEST_F(ElseStatementTest, IsValid_WithBody) {
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
 
-  ElseStatement e(std::move(body));
+  ElseStatement e(body);
   EXPECT_TRUE(e.IsValid());
 }
 
@@ -86,13 +85,13 @@ TEST_F(ElseStatementTest, IsValid_WithNullBodyStatement) {
   body->append(create<DiscardStatement>());
   body->append(nullptr);
 
-  ElseStatement e(std::move(body));
+  ElseStatement e(body);
   EXPECT_FALSE(e.IsValid());
 }
 
 TEST_F(ElseStatementTest, IsValid_InvalidCondition) {
   auto* cond = create<ScalarConstructorExpression>();
-  ElseStatement e(std::move(cond), create<BlockStatement>());
+  ElseStatement e(cond, create<BlockStatement>());
   EXPECT_FALSE(e.IsValid());
 }
 
@@ -100,7 +99,7 @@ TEST_F(ElseStatementTest, IsValid_InvalidBodyStatement) {
   auto* body = create<BlockStatement>();
   body->append(create<IfStatement>(nullptr, create<ast::BlockStatement>()));
 
-  ElseStatement e(std::move(body));
+  ElseStatement e(body);
   EXPECT_FALSE(e.IsValid());
 }
 
@@ -111,7 +110,7 @@ TEST_F(ElseStatementTest, ToStr) {
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
 
-  ElseStatement e(std::move(cond), std::move(body));
+  ElseStatement e(cond, body);
   std::ostringstream out;
   e.to_str(out, 2);
   EXPECT_EQ(out.str(), R"(  Else{
@@ -129,7 +128,7 @@ TEST_F(ElseStatementTest, ToStr_NoCondition) {
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
 
-  ElseStatement e(std::move(body));
+  ElseStatement e(body);
   std::ostringstream out;
   e.to_str(out, 2);
   EXPECT_EQ(out.str(), R"(  Else{
diff --git a/src/ast/function_test.cc b/src/ast/function_test.cc
index 5ba7e18fb1..a305c96b1c 100644
--- a/src/ast/function_test.cc
+++ b/src/ast/function_test.cc
@@ -38,14 +38,13 @@ TEST_F(FunctionTest, Creation) {
 
   VariableList params;
   params.push_back(create<Variable>("var", StorageClass::kNone, &i32));
-  auto* var_ptr = params[0];
+  auto* var = params[0];
 
-  Function f("func", std::move(params), &void_type,
-             create<ast::BlockStatement>());
+  Function f("func", params, &void_type, create<ast::BlockStatement>());
   EXPECT_EQ(f.name(), "func");
   ASSERT_EQ(f.params().size(), 1u);
   EXPECT_EQ(f.return_type(), &void_type);
-  EXPECT_EQ(f.params()[0], var_ptr);
+  EXPECT_EQ(f.params()[0], var);
 }
 
 TEST_F(FunctionTest, Creation_WithSource) {
@@ -55,8 +54,8 @@ TEST_F(FunctionTest, Creation_WithSource) {
   VariableList params;
   params.push_back(create<Variable>("var", StorageClass::kNone, &i32));
 
-  Function f(Source{Source::Location{20, 2}}, "func", std::move(params),
-             &void_type, create<ast::BlockStatement>());
+  Function f(Source{Source::Location{20, 2}}, "func", params, &void_type,
+             create<ast::BlockStatement>());
   auto src = f.source();
   EXPECT_EQ(src.range.begin.line, 20u);
   EXPECT_EQ(src.range.begin.column, 2u);
@@ -86,28 +85,23 @@ TEST_F(FunctionTest, GetReferenceLocations) {
   type::VoidType void_type;
   type::I32Type i32;
 
-  VariableDecorationList decos;
   DecoratedVariable loc1(
       create<ast::Variable>("loc1", StorageClass::kInput, &i32));
-  decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  loc1.set_decorations(std::move(decos));
+  loc1.set_decorations({create<ast::LocationDecoration>(0, Source{})});
 
   DecoratedVariable loc2(
       create<ast::Variable>("loc2", StorageClass::kInput, &i32));
-  decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  loc2.set_decorations(std::move(decos));
+  loc2.set_decorations({create<ast::LocationDecoration>(1, Source{})});
 
   DecoratedVariable builtin1(
       create<ast::Variable>("builtin1", StorageClass::kInput, &i32));
-  decos.push_back(
-      create<ast::BuiltinDecoration>(ast::Builtin::kPosition, Source{}));
-  builtin1.set_decorations(std::move(decos));
+  builtin1.set_decorations(
+      {create<ast::BuiltinDecoration>(ast::Builtin::kPosition, Source{})});
 
   DecoratedVariable builtin2(
       create<ast::Variable>("builtin2", StorageClass::kInput, &i32));
-  decos.push_back(
-      create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{}));
-  builtin2.set_decorations(std::move(decos));
+  builtin2.set_decorations(
+      {create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{})});
 
   Function f("func", VariableList{}, &void_type, create<ast::BlockStatement>());
 
@@ -129,28 +123,23 @@ TEST_F(FunctionTest, GetReferenceBuiltins) {
   type::VoidType void_type;
   type::I32Type i32;
 
-  VariableDecorationList decos;
   DecoratedVariable loc1(
       create<ast::Variable>("loc1", StorageClass::kInput, &i32));
-  decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  loc1.set_decorations(std::move(decos));
+  loc1.set_decorations({create<ast::LocationDecoration>(0, Source{})});
 
   DecoratedVariable loc2(
       create<ast::Variable>("loc2", StorageClass::kInput, &i32));
-  decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  loc2.set_decorations(std::move(decos));
+  loc2.set_decorations({create<ast::LocationDecoration>(1, Source{})});
 
   DecoratedVariable builtin1(
       create<ast::Variable>("builtin1", StorageClass::kInput, &i32));
-  decos.push_back(
-      create<ast::BuiltinDecoration>(ast::Builtin::kPosition, Source{}));
-  builtin1.set_decorations(std::move(decos));
+  builtin1.set_decorations(
+      {create<ast::BuiltinDecoration>(ast::Builtin::kPosition, Source{})});
 
   DecoratedVariable builtin2(
       create<ast::Variable>("builtin2", StorageClass::kInput, &i32));
-  decos.push_back(
-      create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{}));
-  builtin2.set_decorations(std::move(decos));
+  builtin2.set_decorations(
+      {create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{})});
 
   Function f("func", VariableList{}, &void_type, create<ast::BlockStatement>());
 
@@ -191,9 +180,8 @@ TEST_F(FunctionTest, IsValid) {
   auto* block = create<ast::BlockStatement>();
   block->append(create<DiscardStatement>());
 
-  Function f("func", std::move(params), &void_type,
-             create<ast::BlockStatement>());
-  f.set_body(std::move(block));
+  Function f("func", params, &void_type, create<ast::BlockStatement>());
+  f.set_body(block);
   EXPECT_TRUE(f.IsValid());
 }
 
@@ -204,7 +192,7 @@ TEST_F(FunctionTest, IsValid_EmptyName) {
   VariableList params;
   params.push_back(create<Variable>("var", StorageClass::kNone, &i32));
 
-  Function f("", std::move(params), &void_type, create<ast::BlockStatement>());
+  Function f("", params, &void_type, create<ast::BlockStatement>());
   EXPECT_FALSE(f.IsValid());
 }
 
@@ -214,7 +202,7 @@ TEST_F(FunctionTest, IsValid_MissingReturnType) {
   VariableList params;
   params.push_back(create<Variable>("var", StorageClass::kNone, &i32));
 
-  Function f("func", std::move(params), nullptr, create<ast::BlockStatement>());
+  Function f("func", params, nullptr, create<ast::BlockStatement>());
   EXPECT_FALSE(f.IsValid());
 }
 
@@ -226,8 +214,7 @@ TEST_F(FunctionTest, IsValid_NullParam) {
   params.push_back(create<Variable>("var", StorageClass::kNone, &i32));
   params.push_back(nullptr);
 
-  Function f("func", std::move(params), &void_type,
-             create<ast::BlockStatement>());
+  Function f("func", params, &void_type, create<ast::BlockStatement>());
   EXPECT_FALSE(f.IsValid());
 }
 
@@ -237,8 +224,7 @@ TEST_F(FunctionTest, IsValid_InvalidParam) {
   VariableList params;
   params.push_back(create<Variable>("var", StorageClass::kNone, nullptr));
 
-  Function f("func", std::move(params), &void_type,
-             create<ast::BlockStatement>());
+  Function f("func", params, &void_type, create<ast::BlockStatement>());
   EXPECT_FALSE(f.IsValid());
 }
 
@@ -253,9 +239,8 @@ TEST_F(FunctionTest, IsValid_NullBodyStatement) {
   block->append(create<DiscardStatement>());
   block->append(nullptr);
 
-  Function f("func", std::move(params), &void_type,
-             create<ast::BlockStatement>());
-  f.set_body(std::move(block));
+  Function f("func", params, &void_type, create<ast::BlockStatement>());
+  f.set_body(block);
   EXPECT_FALSE(f.IsValid());
 }
 
@@ -270,9 +255,8 @@ TEST_F(FunctionTest, IsValid_InvalidBodyStatement) {
   block->append(create<DiscardStatement>());
   block->append(nullptr);
 
-  Function f("func", std::move(params), &void_type,
-             create<ast::BlockStatement>());
-  f.set_body(std::move(block));
+  Function f("func", params, &void_type, create<ast::BlockStatement>());
+  f.set_body(block);
   EXPECT_FALSE(f.IsValid());
 }
 
@@ -284,7 +268,7 @@ TEST_F(FunctionTest, ToStr) {
   block->append(create<DiscardStatement>());
 
   Function f("func", {}, &void_type, create<ast::BlockStatement>());
-  f.set_body(std::move(block));
+  f.set_body(block);
 
   std::ostringstream out;
   f.to_str(out, 2);
@@ -304,7 +288,7 @@ TEST_F(FunctionTest, ToStr_WithDecoration) {
   block->append(create<DiscardStatement>());
 
   Function f("func", {}, &void_type, create<ast::BlockStatement>());
-  f.set_body(std::move(block));
+  f.set_body(block);
   f.add_decoration(create<WorkgroupDecoration>(2, 4, 6, Source{}));
 
   std::ostringstream out;
@@ -328,9 +312,8 @@ TEST_F(FunctionTest, ToStr_WithParams) {
   auto* block = create<ast::BlockStatement>();
   block->append(create<DiscardStatement>());
 
-  Function f("func", std::move(params), &void_type,
-             create<ast::BlockStatement>());
-  f.set_body(std::move(block));
+  Function f("func", params, &void_type, create<ast::BlockStatement>());
+  f.set_body(block);
 
   std::ostringstream out;
   f.to_str(out, 2);
@@ -364,8 +347,7 @@ TEST_F(FunctionTest, TypeName_WithParams) {
   params.push_back(create<Variable>("var1", StorageClass::kNone, &i32));
   params.push_back(create<Variable>("var2", StorageClass::kNone, &f32));
 
-  Function f("func", std::move(params), &void_type,
-             create<ast::BlockStatement>());
+  Function f("func", params, &void_type, create<ast::BlockStatement>());
   EXPECT_EQ(f.type_name(), "__func__void__i32__f32");
 }
 
@@ -375,13 +357,11 @@ TEST_F(FunctionTest, GetLastStatement) {
   VariableList params;
   auto* body = create<ast::BlockStatement>();
   auto* stmt = create<DiscardStatement>();
-  auto* stmt_ptr = stmt;
-  body->append(std::move(stmt));
-  Function f("func", std::move(params), &void_type,
-             create<ast::BlockStatement>());
-  f.set_body(std::move(body));
+  body->append(stmt);
+  Function f("func", params, &void_type, create<ast::BlockStatement>());
+  f.set_body(body);
 
-  EXPECT_EQ(f.get_last_statement(), stmt_ptr);
+  EXPECT_EQ(f.get_last_statement(), stmt);
 }
 
 TEST_F(FunctionTest, GetLastStatement_nullptr) {
@@ -389,9 +369,8 @@ TEST_F(FunctionTest, GetLastStatement_nullptr) {
 
   VariableList params;
   auto* body = create<ast::BlockStatement>();
-  Function f("func", std::move(params), &void_type,
-             create<ast::BlockStatement>());
-  f.set_body(std::move(body));
+  Function f("func", params, &void_type, create<ast::BlockStatement>());
+  f.set_body(body);
 
   EXPECT_EQ(f.get_last_statement(), nullptr);
 }
diff --git a/src/ast/if_statement_test.cc b/src/ast/if_statement_test.cc
index a37afe3c87..5c6d04d4af 100644
--- a/src/ast/if_statement_test.cc
+++ b/src/ast/if_statement_test.cc
@@ -27,15 +27,13 @@ using IfStatementTest = TestHelper;
 TEST_F(IfStatementTest, Creation) {
   auto* cond = create<IdentifierExpression>("cond");
   auto* body = create<BlockStatement>();
-  body->append(create<DiscardStatement>());
+  auto* discard = create<DiscardStatement>();
+  body->append(discard);
 
-  auto* cond_ptr = cond;
-  auto* stmt_ptr = body->get(0);
-
-  IfStatement stmt(std::move(cond), std::move(body));
-  EXPECT_EQ(stmt.condition(), cond_ptr);
+  IfStatement stmt(cond, body);
+  EXPECT_EQ(stmt.condition(), cond);
   ASSERT_EQ(stmt.body()->size(), 1u);
-  EXPECT_EQ(stmt.body()->get(0), stmt_ptr);
+  EXPECT_EQ(stmt.body()->get(0), discard);
 }
 
 TEST_F(IfStatementTest, Creation_WithSource) {
@@ -43,8 +41,7 @@ TEST_F(IfStatementTest, Creation_WithSource) {
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
 
-  IfStatement stmt(Source{Source::Location{20, 2}}, std::move(cond),
-                   std::move(body));
+  IfStatement stmt(Source{Source::Location{20, 2}}, cond, body);
   auto src = stmt.source();
   EXPECT_EQ(src.range.begin.line, 20u);
   EXPECT_EQ(src.range.begin.column, 2u);
@@ -60,7 +57,7 @@ TEST_F(IfStatementTest, IsValid) {
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
 
-  IfStatement stmt(std::move(cond), std::move(body));
+  IfStatement stmt(cond, body);
   EXPECT_TRUE(stmt.IsValid());
 }
 
@@ -74,8 +71,8 @@ TEST_F(IfStatementTest, IsValid_WithElseStatements) {
   else_stmts[0]->set_condition(create<IdentifierExpression>("Ident"));
   else_stmts.push_back(create<ElseStatement>(create<BlockStatement>()));
 
-  IfStatement stmt(std::move(cond), std::move(body));
-  stmt.set_else_statements(std::move(else_stmts));
+  IfStatement stmt(cond, body);
+  stmt.set_else_statements(else_stmts);
   EXPECT_TRUE(stmt.IsValid());
 }
 
@@ -83,7 +80,7 @@ TEST_F(IfStatementTest, IsValid_MissingCondition) {
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
 
-  IfStatement stmt(nullptr, std::move(body));
+  IfStatement stmt(nullptr, body);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -92,7 +89,7 @@ TEST_F(IfStatementTest, IsValid_InvalidCondition) {
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
 
-  IfStatement stmt(std::move(cond), std::move(body));
+  IfStatement stmt(cond, body);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -102,7 +99,7 @@ TEST_F(IfStatementTest, IsValid_NullBodyStatement) {
   body->append(create<DiscardStatement>());
   body->append(nullptr);
 
-  IfStatement stmt(std::move(cond), std::move(body));
+  IfStatement stmt(cond, body);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -112,7 +109,7 @@ TEST_F(IfStatementTest, IsValid_InvalidBodyStatement) {
   body->append(create<DiscardStatement>());
   body->append(create<IfStatement>(nullptr, create<BlockStatement>()));
 
-  IfStatement stmt(std::move(cond), std::move(body));
+  IfStatement stmt(cond, body);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -127,8 +124,8 @@ TEST_F(IfStatementTest, IsValid_NullElseStatement) {
   else_stmts.push_back(create<ElseStatement>(create<BlockStatement>()));
   else_stmts.push_back(nullptr);
 
-  IfStatement stmt(std::move(cond), std::move(body));
-  stmt.set_else_statements(std::move(else_stmts));
+  IfStatement stmt(cond, body);
+  stmt.set_else_statements(else_stmts);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -141,8 +138,8 @@ TEST_F(IfStatementTest, IsValid_InvalidElseStatement) {
   else_stmts.push_back(create<ElseStatement>(create<BlockStatement>()));
   else_stmts[0]->set_condition(create<IdentifierExpression>(""));
 
-  IfStatement stmt(std::move(cond), std::move(body));
-  stmt.set_else_statements(std::move(else_stmts));
+  IfStatement stmt(cond, body);
+  stmt.set_else_statements(else_stmts);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -155,8 +152,8 @@ TEST_F(IfStatementTest, IsValid_MultipleElseWiththoutCondition) {
   else_stmts.push_back(create<ElseStatement>(create<BlockStatement>()));
   else_stmts.push_back(create<ElseStatement>(create<BlockStatement>()));
 
-  IfStatement stmt(std::move(cond), std::move(body));
-  stmt.set_else_statements(std::move(else_stmts));
+  IfStatement stmt(cond, body);
+  stmt.set_else_statements(else_stmts);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -170,8 +167,8 @@ TEST_F(IfStatementTest, IsValid_ElseNotLast) {
   else_stmts.push_back(create<ElseStatement>(create<BlockStatement>()));
   else_stmts[1]->set_condition(create<IdentifierExpression>("ident"));
 
-  IfStatement stmt(std::move(cond), std::move(body));
-  stmt.set_else_statements(std::move(else_stmts));
+  IfStatement stmt(cond, body);
+  stmt.set_else_statements(else_stmts);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -180,7 +177,7 @@ TEST_F(IfStatementTest, ToStr) {
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
 
-  IfStatement stmt(std::move(cond), std::move(body));
+  IfStatement stmt(cond, body);
 
   std::ostringstream out;
   stmt.to_str(out, 2);
@@ -210,12 +207,12 @@ TEST_F(IfStatementTest, ToStr_WithElseStatements) {
   ElseStatementList else_stmts;
   else_stmts.push_back(create<ElseStatement>(create<BlockStatement>()));
   else_stmts[0]->set_condition(create<IdentifierExpression>("ident"));
-  else_stmts[0]->set_body(std::move(else_if_body));
+  else_stmts[0]->set_body(else_if_body);
   else_stmts.push_back(create<ElseStatement>(create<BlockStatement>()));
-  else_stmts[1]->set_body(std::move(else_body));
+  else_stmts[1]->set_body(else_body);
 
-  IfStatement stmt(std::move(cond), std::move(body));
-  stmt.set_else_statements(std::move(else_stmts));
+  IfStatement stmt(cond, body);
+  stmt.set_else_statements(else_stmts);
 
   std::ostringstream out;
   stmt.to_str(out, 2);
diff --git a/src/ast/loop_statement_test.cc b/src/ast/loop_statement_test.cc
index e8ce319c78..6e242e33ea 100644
--- a/src/ast/loop_statement_test.cc
+++ b/src/ast/loop_statement_test.cc
@@ -30,17 +30,16 @@ using LoopStatementTest = TestHelper;
 TEST_F(LoopStatementTest, Creation) {
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
-  auto* b_ptr = body->last();
+  auto* b = body->last();
 
   auto* continuing = create<BlockStatement>();
   continuing->append(create<DiscardStatement>());
-  auto* c_ptr = continuing->last();
 
-  LoopStatement l(std::move(body), std::move(continuing));
+  LoopStatement l(body, continuing);
   ASSERT_EQ(l.body()->size(), 1u);
-  EXPECT_EQ(l.body()->get(0), b_ptr);
+  EXPECT_EQ(l.body()->get(0), b);
   ASSERT_EQ(l.continuing()->size(), 1u);
-  EXPECT_EQ(l.continuing()->get(0), c_ptr);
+  EXPECT_EQ(l.continuing()->get(0), continuing->last());
 }
 
 TEST_F(LoopStatementTest, Creation_WithSource) {
@@ -50,8 +49,7 @@ TEST_F(LoopStatementTest, Creation_WithSource) {
   auto* continuing = create<BlockStatement>();
   continuing->append(create<DiscardStatement>());
 
-  LoopStatement l(Source{Source::Location{20, 2}}, std::move(body),
-                  std::move(continuing));
+  LoopStatement l(Source{Source::Location{20, 2}}, body, continuing);
   auto src = l.source();
   EXPECT_EQ(src.range.begin.line, 20u);
   EXPECT_EQ(src.range.begin.column, 2u);
@@ -66,7 +64,7 @@ TEST_F(LoopStatementTest, HasContinuing_WithoutContinuing) {
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
 
-  LoopStatement l(std::move(body), {});
+  LoopStatement l(body, {});
   EXPECT_FALSE(l.has_continuing());
 }
 
@@ -77,7 +75,7 @@ TEST_F(LoopStatementTest, HasContinuing_WithContinuing) {
   auto* continuing = create<BlockStatement>();
   continuing->append(create<DiscardStatement>());
 
-  LoopStatement l(std::move(body), std::move(continuing));
+  LoopStatement l(body, continuing);
   EXPECT_TRUE(l.has_continuing());
 }
 
@@ -88,7 +86,7 @@ TEST_F(LoopStatementTest, IsValid) {
   auto* continuing = create<BlockStatement>();
   continuing->append(create<DiscardStatement>());
 
-  LoopStatement l(std::move(body), std::move(continuing));
+  LoopStatement l(body, continuing);
   EXPECT_TRUE(l.IsValid());
 }
 
@@ -96,7 +94,7 @@ TEST_F(LoopStatementTest, IsValid_WithoutContinuing) {
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
 
-  LoopStatement l(std::move(body), create<BlockStatement>());
+  LoopStatement l(body, create<BlockStatement>());
   EXPECT_TRUE(l.IsValid());
 }
 
@@ -113,7 +111,7 @@ TEST_F(LoopStatementTest, IsValid_NullBodyStatement) {
   auto* continuing = create<BlockStatement>();
   continuing->append(create<DiscardStatement>());
 
-  LoopStatement l(std::move(body), std::move(continuing));
+  LoopStatement l(body, continuing);
   EXPECT_FALSE(l.IsValid());
 }
 
@@ -125,7 +123,7 @@ TEST_F(LoopStatementTest, IsValid_InvalidBodyStatement) {
   auto* continuing = create<BlockStatement>();
   continuing->append(create<DiscardStatement>());
 
-  LoopStatement l(std::move(body), std::move(continuing));
+  LoopStatement l(body, continuing);
   EXPECT_FALSE(l.IsValid());
 }
 
@@ -137,7 +135,7 @@ TEST_F(LoopStatementTest, IsValid_NullContinuingStatement) {
   continuing->append(create<DiscardStatement>());
   continuing->append(nullptr);
 
-  LoopStatement l(std::move(body), std::move(continuing));
+  LoopStatement l(body, continuing);
   EXPECT_FALSE(l.IsValid());
 }
 
@@ -149,7 +147,7 @@ TEST_F(LoopStatementTest, IsValid_InvalidContinuingStatement) {
   continuing->append(create<DiscardStatement>());
   continuing->append(create<IfStatement>(nullptr, create<BlockStatement>()));
 
-  LoopStatement l(std::move(body), std::move(continuing));
+  LoopStatement l(body, continuing);
   EXPECT_FALSE(l.IsValid());
 }
 
@@ -157,7 +155,7 @@ TEST_F(LoopStatementTest, ToStr) {
   auto* body = create<BlockStatement>();
   body->append(create<DiscardStatement>());
 
-  LoopStatement l(std::move(body), {});
+  LoopStatement l(body, {});
   std::ostringstream out;
   l.to_str(out, 2);
   EXPECT_EQ(out.str(), R"(  Loop{
@@ -173,7 +171,7 @@ TEST_F(LoopStatementTest, ToStr_WithContinuing) {
   auto* continuing = create<BlockStatement>();
   continuing->append(create<DiscardStatement>());
 
-  LoopStatement l(std::move(body), std::move(continuing));
+  LoopStatement l(body, continuing);
   std::ostringstream out;
   l.to_str(out, 2);
   EXPECT_EQ(out.str(), R"(  Loop{
diff --git a/src/ast/member_accessor_expression_test.cc b/src/ast/member_accessor_expression_test.cc
index 78c06ff3c6..756f65f855 100644
--- a/src/ast/member_accessor_expression_test.cc
+++ b/src/ast/member_accessor_expression_test.cc
@@ -29,20 +29,16 @@ TEST_F(MemberAccessorExpressionTest, Creation) {
   auto* str = create<IdentifierExpression>("structure");
   auto* mem = create<IdentifierExpression>("member");
 
-  auto* str_ptr = str;
-  auto* mem_ptr = mem;
-
-  MemberAccessorExpression stmt(std::move(str), std::move(mem));
-  EXPECT_EQ(stmt.structure(), str_ptr);
-  EXPECT_EQ(stmt.member(), mem_ptr);
+  MemberAccessorExpression stmt(str, mem);
+  EXPECT_EQ(stmt.structure(), str);
+  EXPECT_EQ(stmt.member(), mem);
 }
 
 TEST_F(MemberAccessorExpressionTest, Creation_WithSource) {
   auto* str = create<IdentifierExpression>("structure");
   auto* mem = create<IdentifierExpression>("member");
 
-  MemberAccessorExpression stmt(Source{Source::Location{20, 2}}, std::move(str),
-                                std::move(mem));
+  MemberAccessorExpression stmt(Source{Source::Location{20, 2}}, str, mem);
   auto src = stmt.source();
   EXPECT_EQ(src.range.begin.line, 20u);
   EXPECT_EQ(src.range.begin.column, 2u);
@@ -57,7 +53,7 @@ TEST_F(MemberAccessorExpressionTest, IsValid) {
   auto* str = create<IdentifierExpression>("structure");
   auto* mem = create<IdentifierExpression>("member");
 
-  MemberAccessorExpression stmt(std::move(str), std::move(mem));
+  MemberAccessorExpression stmt(str, mem);
   EXPECT_TRUE(stmt.IsValid());
 }
 
@@ -65,7 +61,7 @@ TEST_F(MemberAccessorExpressionTest, IsValid_NullStruct) {
   auto* mem = create<IdentifierExpression>("member");
 
   MemberAccessorExpression stmt;
-  stmt.set_member(std::move(mem));
+  stmt.set_member(mem);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -73,7 +69,7 @@ TEST_F(MemberAccessorExpressionTest, IsValid_InvalidStruct) {
   auto* str = create<IdentifierExpression>("");
   auto* mem = create<IdentifierExpression>("member");
 
-  MemberAccessorExpression stmt(std::move(str), std::move(mem));
+  MemberAccessorExpression stmt(str, mem);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -81,7 +77,7 @@ TEST_F(MemberAccessorExpressionTest, IsValid_NullMember) {
   auto* str = create<IdentifierExpression>("structure");
 
   MemberAccessorExpression stmt;
-  stmt.set_structure(std::move(str));
+  stmt.set_structure(str);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -89,7 +85,7 @@ TEST_F(MemberAccessorExpressionTest, IsValid_InvalidMember) {
   auto* str = create<IdentifierExpression>("structure");
   auto* mem = create<IdentifierExpression>("");
 
-  MemberAccessorExpression stmt(std::move(str), std::move(mem));
+  MemberAccessorExpression stmt(str, mem);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -97,7 +93,7 @@ TEST_F(MemberAccessorExpressionTest, ToStr) {
   auto* str = create<IdentifierExpression>("structure");
   auto* mem = create<IdentifierExpression>("member");
 
-  MemberAccessorExpression stmt(std::move(str), std::move(mem));
+  MemberAccessorExpression stmt(str, mem);
   std::ostringstream out;
   stmt.to_str(out, 2);
   EXPECT_EQ(out.str(), R"(  MemberAccessor[not set]{
diff --git a/src/ast/module_test.cc b/src/ast/module_test.cc
index 5a55874a53..f52f9d6b06 100644
--- a/src/ast/module_test.cc
+++ b/src/ast/module_test.cc
@@ -49,10 +49,9 @@ TEST_F(ModuleTest, LookupFunction) {
   Module m;
 
   auto* func = create<Function>("main", VariableList{}, &f32,
-                               create<ast::BlockStatement>());
-  auto* func_ptr = func;
-  m.AddFunction(std::move(func));
-  EXPECT_EQ(func_ptr, m.FindFunctionByName("main"));
+                                create<ast::BlockStatement>());
+  m.AddFunction(func);
+  EXPECT_EQ(func, m.FindFunctionByName("main"));
 }
 
 TEST_F(ModuleTest, LookupFunctionMissing) {
@@ -70,7 +69,7 @@ TEST_F(ModuleTest, IsValid_GlobalVariable) {
   auto* var = create<Variable>("var", StorageClass::kInput, &f32);
 
   Module m;
-  m.AddGlobalVariable(std::move(var));
+  m.AddGlobalVariable(var);
   EXPECT_TRUE(m.IsValid());
 }
 
@@ -84,7 +83,7 @@ TEST_F(ModuleTest, IsValid_Invalid_GlobalVariable) {
   auto* var = create<Variable>("var", StorageClass::kInput, nullptr);
 
   Module m;
-  m.AddGlobalVariable(std::move(var));
+  m.AddGlobalVariable(var);
   EXPECT_FALSE(m.IsValid());
 }
 
@@ -126,10 +125,10 @@ TEST_F(ModuleTest, IsValid_Struct_EmptyName) {
 TEST_F(ModuleTest, IsValid_Function) {
   type::F32Type f32;
   auto* func = create<Function>("main", VariableList(), &f32,
-                               create<ast::BlockStatement>());
+                                create<ast::BlockStatement>());
 
   Module m;
-  m.AddFunction(std::move(func));
+  m.AddFunction(func);
   EXPECT_TRUE(m.IsValid());
 }
 
@@ -143,7 +142,7 @@ TEST_F(ModuleTest, IsValid_Invalid_Function) {
   auto* func = create<Function>();
 
   Module m;
-  m.AddFunction(std::move(func));
+  m.AddFunction(func);
   EXPECT_FALSE(m.IsValid());
 }
 
diff --git a/src/ast/return_statement_test.cc b/src/ast/return_statement_test.cc
index e883177f33..42261c4989 100644
--- a/src/ast/return_statement_test.cc
+++ b/src/ast/return_statement_test.cc
@@ -27,10 +27,9 @@ using ReturnStatementTest = TestHelper;
 
 TEST_F(ReturnStatementTest, Creation) {
   auto* expr = create<IdentifierExpression>("expr");
-  auto* expr_ptr = expr;
 
-  ReturnStatement r(std::move(expr));
-  EXPECT_EQ(r.value(), expr_ptr);
+  ReturnStatement r(expr);
+  EXPECT_EQ(r.value(), expr);
 }
 
 TEST_F(ReturnStatementTest, Creation_WithSource) {
@@ -52,7 +51,7 @@ TEST_F(ReturnStatementTest, HasValue_WithoutValue) {
 
 TEST_F(ReturnStatementTest, HasValue_WithValue) {
   auto* expr = create<IdentifierExpression>("expr");
-  ReturnStatement r(std::move(expr));
+  ReturnStatement r(expr);
   EXPECT_TRUE(r.has_value());
 }
 
@@ -63,19 +62,19 @@ TEST_F(ReturnStatementTest, IsValid_WithoutValue) {
 
 TEST_F(ReturnStatementTest, IsValid_WithValue) {
   auto* expr = create<IdentifierExpression>("expr");
-  ReturnStatement r(std::move(expr));
+  ReturnStatement r(expr);
   EXPECT_TRUE(r.IsValid());
 }
 
 TEST_F(ReturnStatementTest, IsValid_InvalidValue) {
   auto* expr = create<IdentifierExpression>("");
-  ReturnStatement r(std::move(expr));
+  ReturnStatement r(expr);
   EXPECT_FALSE(r.IsValid());
 }
 
 TEST_F(ReturnStatementTest, ToStr_WithValue) {
   auto* expr = create<IdentifierExpression>("expr");
-  ReturnStatement r(std::move(expr));
+  ReturnStatement r(expr);
   std::ostringstream out;
   r.to_str(out, 2);
   EXPECT_EQ(out.str(), R"(  Return{
diff --git a/src/ast/scalar_constructor_expression_test.cc b/src/ast/scalar_constructor_expression_test.cc
index b1525c0156..61f1bd269e 100644
--- a/src/ast/scalar_constructor_expression_test.cc
+++ b/src/ast/scalar_constructor_expression_test.cc
@@ -27,15 +27,14 @@ using ScalarConstructorExpressionTest = TestHelper;
 TEST_F(ScalarConstructorExpressionTest, Creation) {
   ast::type::BoolType bool_type;
   auto* b = create<BoolLiteral>(&bool_type, true);
-  auto* b_ptr = b;
-  ScalarConstructorExpression c(std::move(b));
-  EXPECT_EQ(c.literal(), b_ptr);
+  ScalarConstructorExpression c(b);
+  EXPECT_EQ(c.literal(), b);
 }
 
 TEST_F(ScalarConstructorExpressionTest, Creation_WithSource) {
   ast::type::BoolType bool_type;
   auto* b = create<BoolLiteral>(&bool_type, true);
-  ScalarConstructorExpression c(Source{Source::Location{20, 2}}, std::move(b));
+  ScalarConstructorExpression c(Source{Source::Location{20, 2}}, b);
   auto src = c.source();
   EXPECT_EQ(src.range.begin.line, 20u);
   EXPECT_EQ(src.range.begin.column, 2u);
@@ -44,7 +43,7 @@ TEST_F(ScalarConstructorExpressionTest, Creation_WithSource) {
 TEST_F(ScalarConstructorExpressionTest, IsValid) {
   ast::type::BoolType bool_type;
   auto* b = create<BoolLiteral>(&bool_type, true);
-  ScalarConstructorExpression c(std::move(b));
+  ScalarConstructorExpression c(b);
   EXPECT_TRUE(c.IsValid());
 }
 
@@ -56,7 +55,7 @@ TEST_F(ScalarConstructorExpressionTest, IsValid_MissingLiteral) {
 TEST_F(ScalarConstructorExpressionTest, ToStr) {
   ast::type::BoolType bool_type;
   auto* b = create<BoolLiteral>(&bool_type, true);
-  ScalarConstructorExpression c(std::move(b));
+  ScalarConstructorExpression c(b);
   std::ostringstream out;
   c.to_str(out, 2);
   EXPECT_EQ(out.str(), R"(  ScalarConstructor[not set]{true}
diff --git a/src/ast/struct_member_test.cc b/src/ast/struct_member_test.cc
index 4981a2c837..a7fe388713 100644
--- a/src/ast/struct_member_test.cc
+++ b/src/ast/struct_member_test.cc
@@ -32,7 +32,7 @@ TEST_F(StructMemberTest, Creation) {
   StructMemberDecorationList decorations;
   decorations.emplace_back(create<StructMemberOffsetDecoration>(4, Source{}));
 
-  StructMember st{"a", &i32, std::move(decorations)};
+  StructMember st{"a", &i32, decorations};
   EXPECT_EQ(st.name(), "a");
   EXPECT_EQ(st.type(), &i32);
   EXPECT_EQ(st.decorations().size(), 1u);
@@ -80,7 +80,7 @@ TEST_F(StructMemberTest, IsValid_Null_Decoration) {
   decorations.emplace_back(create<StructMemberOffsetDecoration>(4, Source{}));
   decorations.push_back(nullptr);
 
-  StructMember st{"a", &i32, std::move(decorations)};
+  StructMember st{"a", &i32, decorations};
   EXPECT_FALSE(st.IsValid());
 }
 
@@ -89,7 +89,7 @@ TEST_F(StructMemberTest, ToStr) {
   StructMemberDecorationList decorations;
   decorations.emplace_back(create<StructMemberOffsetDecoration>(4, Source{}));
 
-  StructMember st{"a", &i32, std::move(decorations)};
+  StructMember st{"a", &i32, decorations};
   std::ostringstream out;
   st.to_str(out, 2);
   EXPECT_EQ(out.str(), "  StructMember{[[ offset 4 ]] a: __i32}\n");
diff --git a/src/ast/switch_statement_test.cc b/src/ast/switch_statement_test.cc
index 66dcd20c55..49427cfb9e 100644
--- a/src/ast/switch_statement_test.cc
+++ b/src/ast/switch_statement_test.cc
@@ -36,22 +36,19 @@ TEST_F(SwitchStatementTest, Creation) {
 
   auto* ident = create<IdentifierExpression>("ident");
   CaseStatementList body;
-  body.push_back(
-      create<CaseStatement>(std::move(lit), create<ast::BlockStatement>()));
+  auto* case_stmt = create<CaseStatement>(lit, create<ast::BlockStatement>());
+  body.push_back(case_stmt);
 
-  auto* ident_ptr = ident;
-  auto* case_ptr = body[0];
-
-  SwitchStatement stmt(std::move(ident), std::move(body));
-  EXPECT_EQ(stmt.condition(), ident_ptr);
+  SwitchStatement stmt(ident, body);
+  EXPECT_EQ(stmt.condition(), ident);
   ASSERT_EQ(stmt.body().size(), 1u);
-  EXPECT_EQ(stmt.body()[0], case_ptr);
+  EXPECT_EQ(stmt.body()[0], case_stmt);
 }
 
 TEST_F(SwitchStatementTest, Creation_WithSource) {
   auto* ident = create<IdentifierExpression>("ident");
 
-  SwitchStatement stmt(Source{Source::Location{20, 2}}, std::move(ident),
+  SwitchStatement stmt(Source{Source::Location{20, 2}}, ident,
                        CaseStatementList());
   auto src = stmt.source();
   EXPECT_EQ(src.range.begin.line, 20u);
@@ -71,10 +68,9 @@ TEST_F(SwitchStatementTest, IsValid) {
 
   auto* ident = create<IdentifierExpression>("ident");
   CaseStatementList body;
-  body.push_back(
-      create<CaseStatement>(std::move(lit), create<ast::BlockStatement>()));
+  body.push_back(create<CaseStatement>(lit, create<ast::BlockStatement>()));
 
-  SwitchStatement stmt(std::move(ident), std::move(body));
+  SwitchStatement stmt(ident, body);
   EXPECT_TRUE(stmt.IsValid());
 }
 
@@ -85,11 +81,10 @@ TEST_F(SwitchStatementTest, IsValid_Null_Condition) {
   lit.push_back(create<SintLiteral>(&i32, 2));
 
   CaseStatementList body;
-  body.push_back(
-      create<CaseStatement>(std::move(lit), create<ast::BlockStatement>()));
+  body.push_back(create<CaseStatement>(lit, create<ast::BlockStatement>()));
 
   SwitchStatement stmt;
-  stmt.set_body(std::move(body));
+  stmt.set_body(body);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -101,10 +96,9 @@ TEST_F(SwitchStatementTest, IsValid_Invalid_Condition) {
 
   auto* ident = create<IdentifierExpression>("");
   CaseStatementList body;
-  body.push_back(
-      create<CaseStatement>(std::move(lit), create<ast::BlockStatement>()));
+  body.push_back(create<CaseStatement>(lit, create<ast::BlockStatement>()));
 
-  SwitchStatement stmt(std::move(ident), std::move(body));
+  SwitchStatement stmt(ident, body);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -116,11 +110,10 @@ TEST_F(SwitchStatementTest, IsValid_Null_BodyStatement) {
 
   auto* ident = create<IdentifierExpression>("ident");
   CaseStatementList body;
-  body.push_back(
-      create<CaseStatement>(std::move(lit), create<ast::BlockStatement>()));
+  body.push_back(create<CaseStatement>(lit, create<ast::BlockStatement>()));
   body.push_back(nullptr);
 
-  SwitchStatement stmt(std::move(ident), std::move(body));
+  SwitchStatement stmt(ident, body);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -131,17 +124,16 @@ TEST_F(SwitchStatementTest, IsValid_Invalid_BodyStatement) {
   case_body->append(nullptr);
 
   CaseStatementList body;
-  body.push_back(
-      create<CaseStatement>(CaseSelectorList{}, std::move(case_body)));
+  body.push_back(create<CaseStatement>(CaseSelectorList{}, case_body));
 
-  SwitchStatement stmt(std::move(ident), std::move(body));
+  SwitchStatement stmt(ident, body);
   EXPECT_FALSE(stmt.IsValid());
 }
 
 TEST_F(SwitchStatementTest, ToStr_Empty) {
   auto* ident = create<IdentifierExpression>("ident");
 
-  SwitchStatement stmt(std::move(ident), {});
+  SwitchStatement stmt(ident, {});
   std::ostringstream out;
   stmt.to_str(out, 2);
   EXPECT_EQ(out.str(), R"(  Switch{
@@ -160,10 +152,9 @@ TEST_F(SwitchStatementTest, ToStr) {
 
   auto* ident = create<IdentifierExpression>("ident");
   CaseStatementList body;
-  body.push_back(
-      create<CaseStatement>(std::move(lit), create<ast::BlockStatement>()));
+  body.push_back(create<CaseStatement>(lit, create<ast::BlockStatement>()));
 
-  SwitchStatement stmt(std::move(ident), std::move(body));
+  SwitchStatement stmt(ident, body);
   std::ostringstream out;
   stmt.to_str(out, 2);
   EXPECT_EQ(out.str(), R"(  Switch{
diff --git a/src/ast/type/access_control_type_test.cc b/src/ast/type/access_control_type_test.cc
index 748114bd7f..ba63f63edb 100644
--- a/src/ast/type/access_control_type_test.cc
+++ b/src/ast/type/access_control_type_test.cc
@@ -103,7 +103,7 @@ TEST_F(AccessControlTypeTest, MinBufferBindingSizeArray) {
   ArrayType array(&u32, 4);
   ArrayDecorationList decos;
   decos.push_back(create<StrideDecoration>(4, Source{}));
-  array.set_decorations(std::move(decos));
+  array.set_decorations(decos);
   AccessControlType at{AccessControl::kReadOnly, &array};
   EXPECT_EQ(16u, at.MinBufferBindingSize(MemoryLayout::kUniformBuffer));
 }
@@ -113,7 +113,7 @@ TEST_F(AccessControlTypeTest, MinBufferBindingSizeRuntimeArray) {
   ArrayType array(&u32);
   ArrayDecorationList decos;
   decos.push_back(create<StrideDecoration>(4, Source{}));
-  array.set_decorations(std::move(decos));
+  array.set_decorations(decos);
   AccessControlType at{AccessControl::kReadOnly, &array};
   EXPECT_EQ(4u, at.MinBufferBindingSize(MemoryLayout::kUniformBuffer));
 }
@@ -124,16 +124,16 @@ TEST_F(AccessControlTypeTest, MinBufferBindingSizeStruct) {
 
   StructMemberDecorationList deco;
   deco.push_back(create<StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<StructMember>("foo", &u32, std::move(deco)));
+  members.push_back(create<StructMember>("foo", &u32, deco));
 
   deco = StructMemberDecorationList();
   deco.push_back(create<StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<StructMember>("bar", &u32, std::move(deco)));
+  members.push_back(create<StructMember>("bar", &u32, deco));
 
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  StructType struct_type("struct_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  StructType struct_type("struct_type", str);
   AccessControlType at{AccessControl::kReadOnly, &struct_type};
   EXPECT_EQ(16u, at.MinBufferBindingSize(MemoryLayout::kUniformBuffer));
   EXPECT_EQ(8u, at.MinBufferBindingSize(MemoryLayout::kStorageBuffer));
@@ -150,7 +150,7 @@ TEST_F(AccessControlTypeTest, BaseAlignmentArray) {
   ArrayType array(&u32, 4);
   ArrayDecorationList decos;
   decos.push_back(create<StrideDecoration>(4, Source{}));
-  array.set_decorations(std::move(decos));
+  array.set_decorations(decos);
   AccessControlType at{AccessControl::kReadOnly, &array};
   EXPECT_EQ(16u, at.BaseAlignment(MemoryLayout::kUniformBuffer));
 }
@@ -160,7 +160,7 @@ TEST_F(AccessControlTypeTest, BaseAlignmentRuntimeArray) {
   ArrayType array(&u32);
   ArrayDecorationList decos;
   decos.push_back(create<StrideDecoration>(4, Source{}));
-  array.set_decorations(std::move(decos));
+  array.set_decorations(decos);
   AccessControlType at{AccessControl::kReadOnly, &array};
   EXPECT_EQ(16u, at.BaseAlignment(MemoryLayout::kUniformBuffer));
 }
@@ -172,17 +172,17 @@ TEST_F(AccessControlTypeTest, BaseAlignmentStruct) {
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(0, Source{}));
-    members.push_back(create<StructMember>("foo", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("foo", &u32, deco));
   }
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(4, Source{}));
-    members.push_back(create<StructMember>("bar", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("bar", &u32, deco));
   }
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  StructType struct_type("struct_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  StructType struct_type("struct_type", str);
   AccessControlType at{AccessControl::kReadOnly, &struct_type};
   EXPECT_EQ(16u, at.BaseAlignment(MemoryLayout::kUniformBuffer));
   EXPECT_EQ(4u, at.BaseAlignment(MemoryLayout::kStorageBuffer));
diff --git a/src/ast/type/alias_type_test.cc b/src/ast/type/alias_type_test.cc
index ae62a0ff7e..729a12bbec 100644
--- a/src/ast/type/alias_type_test.cc
+++ b/src/ast/type/alias_type_test.cc
@@ -166,7 +166,7 @@ TEST_F(AliasTypeTest, MinBufferBindingSizeArray) {
   ArrayType array(&u32, 4);
   ArrayDecorationList decos;
   decos.push_back(create<StrideDecoration>(4, Source{}));
-  array.set_decorations(std::move(decos));
+  array.set_decorations(decos);
   AliasType alias{"alias", &array};
   EXPECT_EQ(16u, alias.MinBufferBindingSize(MemoryLayout::kUniformBuffer));
 }
@@ -176,7 +176,7 @@ TEST_F(AliasTypeTest, MinBufferBindingSizeRuntimeArray) {
   ArrayType array(&u32);
   ArrayDecorationList decos;
   decos.push_back(create<StrideDecoration>(4, Source{}));
-  array.set_decorations(std::move(decos));
+  array.set_decorations(decos);
   AliasType alias{"alias", &array};
   EXPECT_EQ(4u, alias.MinBufferBindingSize(MemoryLayout::kUniformBuffer));
 }
@@ -188,17 +188,17 @@ TEST_F(AliasTypeTest, MinBufferBindingSizeStruct) {
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(0, Source{}));
-    members.push_back(create<StructMember>("foo", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("foo", &u32, deco));
   }
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(4, Source{}));
-    members.push_back(create<StructMember>("bar", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("bar", &u32, deco));
   }
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  StructType struct_type("struct_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  StructType struct_type("struct_type", str);
   AliasType alias{"alias", &struct_type};
   EXPECT_EQ(16u, alias.MinBufferBindingSize(MemoryLayout::kUniformBuffer));
   EXPECT_EQ(8u, alias.MinBufferBindingSize(MemoryLayout::kStorageBuffer));
@@ -215,7 +215,7 @@ TEST_F(AliasTypeTest, BaseAlignmentArray) {
   ArrayType array(&u32, 4);
   ArrayDecorationList decos;
   decos.push_back(create<StrideDecoration>(4, Source{}));
-  array.set_decorations(std::move(decos));
+  array.set_decorations(decos);
   AliasType alias{"alias", &array};
   EXPECT_EQ(16u, alias.BaseAlignment(MemoryLayout::kUniformBuffer));
 }
@@ -225,7 +225,7 @@ TEST_F(AliasTypeTest, BaseAlignmentRuntimeArray) {
   ArrayType array(&u32);
   ArrayDecorationList decos;
   decos.push_back(create<StrideDecoration>(4, Source{}));
-  array.set_decorations(std::move(decos));
+  array.set_decorations(decos);
   AliasType alias{"alias", &array};
   EXPECT_EQ(16u, alias.BaseAlignment(MemoryLayout::kUniformBuffer));
 }
@@ -237,17 +237,17 @@ TEST_F(AliasTypeTest, BaseAlignmentStruct) {
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(0, Source{}));
-    members.push_back(create<StructMember>("foo", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("foo", &u32, deco));
   }
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(4, Source{}));
-    members.push_back(create<StructMember>("bar", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("bar", &u32, deco));
   }
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  StructType struct_type("struct_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  StructType struct_type("struct_type", str);
   AliasType alias{"alias", &struct_type};
   EXPECT_EQ(16u, alias.BaseAlignment(MemoryLayout::kUniformBuffer));
   EXPECT_EQ(4u, alias.BaseAlignment(MemoryLayout::kStorageBuffer));
diff --git a/src/ast/type/array_type_test.cc b/src/ast/type/array_type_test.cc
index a0f745cc7b..447d6b8354 100644
--- a/src/ast/type/array_type_test.cc
+++ b/src/ast/type/array_type_test.cc
@@ -84,7 +84,7 @@ TEST_F(ArrayTypeTest, TypeName_WithStride) {
   decos.push_back(create<StrideDecoration>(16, Source{}));
 
   ArrayType arr{&i32, 3};
-  arr.set_decorations(std::move(decos));
+  arr.set_decorations(decos);
   EXPECT_EQ(arr.type_name(), "__array__i32_3_stride_16");
 }
 
@@ -100,7 +100,7 @@ TEST_F(ArrayTypeTest, MinBufferBindingSizeArray) {
   decos.push_back(create<StrideDecoration>(4, Source{}));
 
   ArrayType arr(&u32, 4);
-  arr.set_decorations(std::move(decos));
+  arr.set_decorations(decos);
   EXPECT_EQ(16u, arr.MinBufferBindingSize(MemoryLayout::kUniformBuffer));
 }
 
@@ -110,7 +110,7 @@ TEST_F(ArrayTypeTest, MinBufferBindingSizeRuntimeArray) {
   decos.push_back(create<StrideDecoration>(4, Source{}));
 
   ArrayType arr(&u32);
-  arr.set_decorations(std::move(decos));
+  arr.set_decorations(decos);
   EXPECT_EQ(4u, arr.MinBufferBindingSize(MemoryLayout::kUniformBuffer));
 }
 
@@ -120,7 +120,7 @@ TEST_F(ArrayTypeTest, BaseAlignmentArray) {
   decos.push_back(create<StrideDecoration>(4, Source{}));
 
   ArrayType arr(&u32, 4);
-  arr.set_decorations(std::move(decos));
+  arr.set_decorations(decos);
   EXPECT_EQ(16u, arr.BaseAlignment(MemoryLayout::kUniformBuffer));
   EXPECT_EQ(4u, arr.BaseAlignment(MemoryLayout::kStorageBuffer));
 }
@@ -131,7 +131,7 @@ TEST_F(ArrayTypeTest, BaseAlignmentRuntimeArray) {
   decos.push_back(create<StrideDecoration>(4, Source{}));
 
   ArrayType arr(&u32);
-  arr.set_decorations(std::move(decos));
+  arr.set_decorations(decos);
   EXPECT_EQ(16u, arr.BaseAlignment(MemoryLayout::kUniformBuffer));
   EXPECT_EQ(4u, arr.BaseAlignment(MemoryLayout::kStorageBuffer));
 }
diff --git a/src/ast/type/struct_type_test.cc b/src/ast/type/struct_type_test.cc
index 44d0cccf09..88bf368688 100644
--- a/src/ast/type/struct_type_test.cc
+++ b/src/ast/type/struct_type_test.cc
@@ -36,13 +36,13 @@ using StructTypeTest = TestHelper;
 TEST_F(StructTypeTest, Creation) {
   auto* impl = create<Struct>();
   auto* ptr = impl;
-  StructType s{"S", std::move(impl)};
+  StructType s{"S", impl};
   EXPECT_EQ(s.impl(), ptr);
 }
 
 TEST_F(StructTypeTest, Is) {
   auto* impl = create<Struct>();
-  StructType s{"S", std::move(impl)};
+  StructType s{"S", impl};
   EXPECT_FALSE(s.IsAccessControl());
   EXPECT_FALSE(s.IsAlias());
   EXPECT_FALSE(s.IsArray());
@@ -60,7 +60,7 @@ TEST_F(StructTypeTest, Is) {
 
 TEST_F(StructTypeTest, TypeName) {
   auto* impl = create<Struct>();
-  StructType s{"my_struct", std::move(impl)};
+  StructType s{"my_struct", impl};
   EXPECT_EQ(s.type_name(), "__struct_my_struct");
 }
 
@@ -71,17 +71,17 @@ TEST_F(StructTypeTest, MinBufferBindingSize) {
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(0, Source{}));
-    members.push_back(create<StructMember>("foo", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("foo", &u32, deco));
   }
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(4, Source{}));
-    members.push_back(create<StructMember>("bar", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("bar", &u32, deco));
   }
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  StructType struct_type("struct_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  StructType struct_type("struct_type", str);
   EXPECT_EQ(16u,
             struct_type.MinBufferBindingSize(MemoryLayout::kUniformBuffer));
   EXPECT_EQ(8u, struct_type.MinBufferBindingSize(MemoryLayout::kStorageBuffer));
@@ -93,29 +93,29 @@ TEST_F(StructTypeTest, MinBufferBindingSizeArray) {
   {
     ArrayDecorationList decos;
     decos.push_back(create<StrideDecoration>(4, Source{}));
-    arr.set_decorations(std::move(decos));
+    arr.set_decorations(decos);
   }
 
   StructMemberList members;
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(0, Source{}));
-    members.push_back(create<StructMember>("foo", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("foo", &u32, deco));
   }
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(4, Source{}));
-    members.push_back(create<StructMember>("bar", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("bar", &u32, deco));
   }
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(8, Source{}));
-    members.push_back(create<StructMember>("bar", &arr, std::move(deco)));
+    members.push_back(create<StructMember>("bar", &arr, deco));
   }
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  StructType struct_type("struct_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  StructType struct_type("struct_type", str);
   EXPECT_EQ(32u,
             struct_type.MinBufferBindingSize(MemoryLayout::kUniformBuffer));
   EXPECT_EQ(24u,
@@ -128,29 +128,29 @@ TEST_F(StructTypeTest, MinBufferBindingSizeRuntimeArray) {
   {
     ArrayDecorationList decos;
     decos.push_back(create<StrideDecoration>(4, Source{}));
-    arr.set_decorations(std::move(decos));
+    arr.set_decorations(decos);
   }
 
   StructMemberList members;
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(0, Source{}));
-    members.push_back(create<StructMember>("foo", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("foo", &u32, deco));
   }
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(4, Source{}));
-    members.push_back(create<StructMember>("bar", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("bar", &u32, deco));
   }
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(8, Source{}));
-    members.push_back(create<StructMember>("bar", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("bar", &u32, deco));
   }
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  StructType struct_type("struct_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  StructType struct_type("struct_type", str);
   EXPECT_EQ(12u,
             struct_type.MinBufferBindingSize(MemoryLayout::kStorageBuffer));
 }
@@ -163,12 +163,12 @@ TEST_F(StructTypeTest, MinBufferBindingSizeVec2) {
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(0, Source{}));
-    members.push_back(create<StructMember>("foo", &vec2, std::move(deco)));
+    members.push_back(create<StructMember>("foo", &vec2, deco));
   }
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  StructType struct_type("struct_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  StructType struct_type("struct_type", str);
   EXPECT_EQ(16u,
             struct_type.MinBufferBindingSize(MemoryLayout::kUniformBuffer));
   EXPECT_EQ(8u, struct_type.MinBufferBindingSize(MemoryLayout::kStorageBuffer));
@@ -182,12 +182,12 @@ TEST_F(StructTypeTest, MinBufferBindingSizeVec3) {
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(0, Source{}));
-    members.push_back(create<StructMember>("foo", &vec3, std::move(deco)));
+    members.push_back(create<StructMember>("foo", &vec3, deco));
   }
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  StructType struct_type("struct_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  StructType struct_type("struct_type", str);
   EXPECT_EQ(16u,
             struct_type.MinBufferBindingSize(MemoryLayout::kUniformBuffer));
   EXPECT_EQ(16u,
@@ -202,12 +202,12 @@ TEST_F(StructTypeTest, MinBufferBindingSizeVec4) {
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(0, Source{}));
-    members.push_back(create<StructMember>("foo", &vec4, std::move(deco)));
+    members.push_back(create<StructMember>("foo", &vec4, deco));
   }
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  StructType struct_type("struct_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  StructType struct_type("struct_type", str);
   EXPECT_EQ(16u,
             struct_type.MinBufferBindingSize(MemoryLayout::kUniformBuffer));
   EXPECT_EQ(16u,
@@ -221,17 +221,17 @@ TEST_F(StructTypeTest, BaseAlignment) {
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(0, Source{}));
-    members.push_back(create<StructMember>("foo", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("foo", &u32, deco));
   }
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(4, Source{}));
-    members.push_back(create<StructMember>("bar", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("bar", &u32, deco));
   }
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  StructType struct_type("struct_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  StructType struct_type("struct_type", str);
   EXPECT_EQ(16u, struct_type.BaseAlignment(MemoryLayout::kUniformBuffer));
   EXPECT_EQ(4u, struct_type.BaseAlignment(MemoryLayout::kStorageBuffer));
 }
@@ -242,29 +242,29 @@ TEST_F(StructTypeTest, BaseAlignmentArray) {
   {
     ArrayDecorationList decos;
     decos.push_back(create<StrideDecoration>(4, Source{}));
-    arr.set_decorations(std::move(decos));
+    arr.set_decorations(decos);
   }
 
   StructMemberList members;
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(0, Source{}));
-    members.push_back(create<StructMember>("foo", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("foo", &u32, deco));
   }
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(4, Source{}));
-    members.push_back(create<StructMember>("bar", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("bar", &u32, deco));
   }
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(8, Source{}));
-    members.push_back(create<StructMember>("bar", &arr, std::move(deco)));
+    members.push_back(create<StructMember>("bar", &arr, deco));
   }
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  StructType struct_type("struct_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  StructType struct_type("struct_type", str);
   EXPECT_EQ(16u, struct_type.BaseAlignment(MemoryLayout::kUniformBuffer));
   EXPECT_EQ(4u, struct_type.BaseAlignment(MemoryLayout::kStorageBuffer));
 }
@@ -275,29 +275,29 @@ TEST_F(StructTypeTest, BaseAlignmentRuntimeArray) {
   {
     ArrayDecorationList decos;
     decos.push_back(create<StrideDecoration>(4, Source{}));
-    arr.set_decorations(std::move(decos));
+    arr.set_decorations(decos);
   }
 
   StructMemberList members;
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(0, Source{}));
-    members.push_back(create<StructMember>("foo", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("foo", &u32, deco));
   }
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(4, Source{}));
-    members.push_back(create<StructMember>("bar", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("bar", &u32, deco));
   }
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(8, Source{}));
-    members.push_back(create<StructMember>("bar", &u32, std::move(deco)));
+    members.push_back(create<StructMember>("bar", &u32, deco));
   }
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  StructType struct_type("struct_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  StructType struct_type("struct_type", str);
   EXPECT_EQ(4u, struct_type.BaseAlignment(MemoryLayout::kStorageBuffer));
 }
 
@@ -309,12 +309,12 @@ TEST_F(StructTypeTest, BaseAlignmentVec2) {
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(0, Source{}));
-    members.push_back(create<StructMember>("foo", &vec2, std::move(deco)));
+    members.push_back(create<StructMember>("foo", &vec2, deco));
   }
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  StructType struct_type("struct_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  StructType struct_type("struct_type", str);
   EXPECT_EQ(16u, struct_type.BaseAlignment(MemoryLayout::kUniformBuffer));
   EXPECT_EQ(8u, struct_type.BaseAlignment(MemoryLayout::kStorageBuffer));
 }
@@ -327,12 +327,12 @@ TEST_F(StructTypeTest, BaseAlignmentVec3) {
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(0, Source{}));
-    members.push_back(create<StructMember>("foo", &vec3, std::move(deco)));
+    members.push_back(create<StructMember>("foo", &vec3, deco));
   }
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  StructType struct_type("struct_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  StructType struct_type("struct_type", str);
   EXPECT_EQ(16u, struct_type.BaseAlignment(MemoryLayout::kUniformBuffer));
   EXPECT_EQ(16u, struct_type.BaseAlignment(MemoryLayout::kStorageBuffer));
 }
@@ -345,12 +345,12 @@ TEST_F(StructTypeTest, BaseAlignmentVec4) {
   {
     StructMemberDecorationList deco;
     deco.push_back(create<StructMemberOffsetDecoration>(0, Source{}));
-    members.push_back(create<StructMember>("foo", &vec4, std::move(deco)));
+    members.push_back(create<StructMember>("foo", &vec4, deco));
   }
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  StructType struct_type("struct_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  StructType struct_type("struct_type", str);
   EXPECT_EQ(16u, struct_type.BaseAlignment(MemoryLayout::kUniformBuffer));
   EXPECT_EQ(16u, struct_type.BaseAlignment(MemoryLayout::kStorageBuffer));
 }
diff --git a/src/ast/type_constructor_expression_test.cc b/src/ast/type_constructor_expression_test.cc
index 18914f0c3b..c576fedba7 100644
--- a/src/ast/type_constructor_expression_test.cc
+++ b/src/ast/type_constructor_expression_test.cc
@@ -33,12 +33,11 @@ TEST_F(TypeConstructorExpressionTest, Creation) {
   type::F32Type f32;
   ExpressionList expr;
   expr.push_back(create<IdentifierExpression>("expr"));
-  auto* expr_ptr = expr[0];
 
-  TypeConstructorExpression t(&f32, std::move(expr));
+  TypeConstructorExpression t(&f32, expr);
   EXPECT_EQ(t.type(), &f32);
   ASSERT_EQ(t.values().size(), 1u);
-  EXPECT_EQ(t.values()[0], expr_ptr);
+  EXPECT_EQ(t.values()[0], expr[0]);
 }
 
 TEST_F(TypeConstructorExpressionTest, Creation_WithSource) {
@@ -46,8 +45,7 @@ TEST_F(TypeConstructorExpressionTest, Creation_WithSource) {
   ExpressionList expr;
   expr.push_back(create<IdentifierExpression>("expr"));
 
-  TypeConstructorExpression t(Source{Source::Location{20, 2}}, &f32,
-                              std::move(expr));
+  TypeConstructorExpression t(Source{Source::Location{20, 2}}, &f32, expr);
   auto src = t.source();
   EXPECT_EQ(src.range.begin.line, 20u);
   EXPECT_EQ(src.range.begin.column, 2u);
@@ -63,7 +61,7 @@ TEST_F(TypeConstructorExpressionTest, IsValid) {
   ExpressionList expr;
   expr.push_back(create<IdentifierExpression>("expr"));
 
-  TypeConstructorExpression t(&f32, std::move(expr));
+  TypeConstructorExpression t(&f32, expr);
   EXPECT_TRUE(t.IsValid());
 }
 
@@ -71,7 +69,7 @@ TEST_F(TypeConstructorExpressionTest, IsValid_EmptyValue) {
   type::F32Type f32;
   ExpressionList expr;
 
-  TypeConstructorExpression t(&f32, std::move(expr));
+  TypeConstructorExpression t(&f32, expr);
   EXPECT_TRUE(t.IsValid());
 }
 
@@ -80,7 +78,7 @@ TEST_F(TypeConstructorExpressionTest, IsValid_NullType) {
   expr.push_back(create<IdentifierExpression>("expr"));
 
   TypeConstructorExpression t;
-  t.set_values(std::move(expr));
+  t.set_values(expr);
   EXPECT_FALSE(t.IsValid());
 }
 
@@ -90,7 +88,7 @@ TEST_F(TypeConstructorExpressionTest, IsValid_NullValue) {
   expr.push_back(create<IdentifierExpression>("expr"));
   expr.push_back(nullptr);
 
-  TypeConstructorExpression t(&f32, std::move(expr));
+  TypeConstructorExpression t(&f32, expr);
   EXPECT_FALSE(t.IsValid());
 }
 
@@ -99,7 +97,7 @@ TEST_F(TypeConstructorExpressionTest, IsValid_InvalidValue) {
   ExpressionList expr;
   expr.push_back(create<IdentifierExpression>(""));
 
-  TypeConstructorExpression t(&f32, std::move(expr));
+  TypeConstructorExpression t(&f32, expr);
   EXPECT_FALSE(t.IsValid());
 }
 
@@ -111,7 +109,7 @@ TEST_F(TypeConstructorExpressionTest, ToStr) {
   expr.push_back(create<IdentifierExpression>("expr_2"));
   expr.push_back(create<IdentifierExpression>("expr_3"));
 
-  TypeConstructorExpression t(&vec, std::move(expr));
+  TypeConstructorExpression t(&vec, expr);
   std::ostringstream out;
   t.to_str(out, 2);
   EXPECT_EQ(out.str(), R"(  TypeConstructor[not set]{
diff --git a/src/ast/unary_op_expression_test.cc b/src/ast/unary_op_expression_test.cc
index 9192139088..f474ea9b11 100644
--- a/src/ast/unary_op_expression_test.cc
+++ b/src/ast/unary_op_expression_test.cc
@@ -27,17 +27,15 @@ using UnaryOpExpressionTest = TestHelper;
 
 TEST_F(UnaryOpExpressionTest, Creation) {
   auto* ident = create<IdentifierExpression>("ident");
-  auto* ident_ptr = ident;
 
-  UnaryOpExpression u(UnaryOp::kNot, std::move(ident));
+  UnaryOpExpression u(UnaryOp::kNot, ident);
   EXPECT_EQ(u.op(), UnaryOp::kNot);
-  EXPECT_EQ(u.expr(), ident_ptr);
+  EXPECT_EQ(u.expr(), ident);
 }
 
 TEST_F(UnaryOpExpressionTest, Creation_WithSource) {
   auto* ident = create<IdentifierExpression>("ident");
-  UnaryOpExpression u(Source{Source::Location{20, 2}}, UnaryOp::kNot,
-                      std::move(ident));
+  UnaryOpExpression u(Source{Source::Location{20, 2}}, UnaryOp::kNot, ident);
   auto src = u.source();
   EXPECT_EQ(src.range.begin.line, 20u);
   EXPECT_EQ(src.range.begin.column, 2u);
@@ -50,7 +48,7 @@ TEST_F(UnaryOpExpressionTest, IsUnaryOp) {
 
 TEST_F(UnaryOpExpressionTest, IsValid) {
   auto* ident = create<IdentifierExpression>("ident");
-  UnaryOpExpression u(UnaryOp::kNot, std::move(ident));
+  UnaryOpExpression u(UnaryOp::kNot, ident);
   EXPECT_TRUE(u.IsValid());
 }
 
@@ -62,13 +60,13 @@ TEST_F(UnaryOpExpressionTest, IsValid_NullExpression) {
 
 TEST_F(UnaryOpExpressionTest, IsValid_InvalidExpression) {
   auto* ident = create<IdentifierExpression>("");
-  UnaryOpExpression u(UnaryOp::kNot, std::move(ident));
+  UnaryOpExpression u(UnaryOp::kNot, ident);
   EXPECT_FALSE(u.IsValid());
 }
 
 TEST_F(UnaryOpExpressionTest, ToStr) {
   auto* ident = create<IdentifierExpression>("ident");
-  UnaryOpExpression u(UnaryOp::kNot, std::move(ident));
+  UnaryOpExpression u(UnaryOp::kNot, ident);
   std::ostringstream out;
   u.to_str(out, 2);
   EXPECT_EQ(out.str(), R"(  UnaryOp[not set]{
diff --git a/src/ast/variable_decl_statement_test.cc b/src/ast/variable_decl_statement_test.cc
index 9ab2c3b494..8e96e12460 100644
--- a/src/ast/variable_decl_statement_test.cc
+++ b/src/ast/variable_decl_statement_test.cc
@@ -27,17 +27,16 @@ using VariableDeclStatementTest = TestHelper;
 TEST_F(VariableDeclStatementTest, Creation) {
   type::F32Type f32;
   auto* var = create<Variable>("a", StorageClass::kNone, &f32);
-  auto* var_ptr = var;
 
-  VariableDeclStatement stmt(std::move(var));
-  EXPECT_EQ(stmt.variable(), var_ptr);
+  VariableDeclStatement stmt(var);
+  EXPECT_EQ(stmt.variable(), var);
 }
 
 TEST_F(VariableDeclStatementTest, Creation_WithSource) {
   type::F32Type f32;
   auto* var = create<Variable>("a", StorageClass::kNone, &f32);
 
-  VariableDeclStatement stmt(Source{Source::Location{20, 2}}, std::move(var));
+  VariableDeclStatement stmt(Source{Source::Location{20, 2}}, var);
   auto src = stmt.source();
   EXPECT_EQ(src.range.begin.line, 20u);
   EXPECT_EQ(src.range.begin.column, 2u);
@@ -51,14 +50,14 @@ TEST_F(VariableDeclStatementTest, IsVariableDecl) {
 TEST_F(VariableDeclStatementTest, IsValid) {
   type::F32Type f32;
   auto* var = create<Variable>("a", StorageClass::kNone, &f32);
-  VariableDeclStatement stmt(std::move(var));
+  VariableDeclStatement stmt(var);
   EXPECT_TRUE(stmt.IsValid());
 }
 
 TEST_F(VariableDeclStatementTest, IsValid_InvalidVariable) {
   type::F32Type f32;
   auto* var = create<Variable>("", StorageClass::kNone, &f32);
-  VariableDeclStatement stmt(std::move(var));
+  VariableDeclStatement stmt(var);
   EXPECT_FALSE(stmt.IsValid());
 }
 
@@ -71,7 +70,7 @@ TEST_F(VariableDeclStatementTest, ToStr) {
   type::F32Type f32;
   auto* var = create<Variable>("a", StorageClass::kNone, &f32);
 
-  VariableDeclStatement stmt(Source{Source::Location{20, 2}}, std::move(var));
+  VariableDeclStatement stmt(Source{Source::Location{20, 2}}, var);
   std::ostringstream out;
   stmt.to_str(out, 2);
   EXPECT_EQ(out.str(), R"(  VariableDeclStatement{
diff --git a/src/inspector/inspector.cc b/src/inspector/inspector.cc
index dd7849334e..9875ec40f3 100644
--- a/src/inspector/inspector.cc
+++ b/src/inspector/inspector.cc
@@ -199,7 +199,7 @@ std::vector<ResourceBinding> Inspector::GetUniformBufferResourceBindings(
     entry.min_buffer_binding_size = var->type()->MinBufferBindingSize(
         ast::type::MemoryLayout::kUniformBuffer);
 
-    result.push_back(std::move(entry));
+    result.push_back(entry);
   }
 
   return result;
@@ -234,7 +234,7 @@ std::vector<ResourceBinding> Inspector::GetSamplerResourceBindings(
     entry.bind_group = binding_info.set->value();
     entry.binding = binding_info.binding->value();
 
-    result.push_back(std::move(entry));
+    result.push_back(entry);
   }
 
   return result;
@@ -258,7 +258,7 @@ std::vector<ResourceBinding> Inspector::GetComparisonSamplerResourceBindings(
     entry.bind_group = binding_info.set->value();
     entry.binding = binding_info.binding->value();
 
-    result.push_back(std::move(entry));
+    result.push_back(entry);
   }
 
   return result;
@@ -321,7 +321,7 @@ std::vector<ResourceBinding> Inspector::GetStorageBufferResourceBindingsImpl(
     entry.min_buffer_binding_size = var->type()->MinBufferBindingSize(
         ast::type::MemoryLayout::kStorageBuffer);
 
-    result.push_back(std::move(entry));
+    result.push_back(entry);
   }
 
   return result;
@@ -401,7 +401,7 @@ std::vector<ResourceBinding> Inspector::GetSampledTextureResourceBindingsImpl(
       entry.sampled_kind = ResourceBinding::SampledKind::kUnknown;
     }
 
-    result.push_back(std::move(entry));
+    result.push_back(entry);
   }
 
   return result;
diff --git a/src/inspector/inspector_test.cc b/src/inspector/inspector_test.cc
index 50a93803e6..44871923ec 100644
--- a/src/inspector/inspector_test.cc
+++ b/src/inspector/inspector_test.cc
@@ -81,8 +81,7 @@ class InspectorHelper {
   ast::Function* MakeEmptyBodyFunction(std::string name) {
     auto* body = create<ast::BlockStatement>();
     body->append(create<ast::ReturnStatement>());
-    return create<ast::Function>(name, ast::VariableList(), void_type(),
-                                 std::move(body));
+    return create<ast::Function>(name, ast::VariableList(), void_type(), body);
   }
 
   /// Generates a function that calls another
@@ -93,12 +92,12 @@ class InspectorHelper {
                                         std::string callee) {
     auto* body = create<ast::BlockStatement>();
     auto* ident_expr = create<ast::IdentifierExpression>(callee);
-    auto* call_expr = create<ast::CallExpression>(std::move(ident_expr),
-                                                  ast::ExpressionList());
-    body->append(create<ast::CallStatement>(std::move(call_expr)));
+    auto* call_expr =
+        create<ast::CallExpression>(ident_expr, ast::ExpressionList());
+    body->append(create<ast::CallStatement>(call_expr));
     body->append(create<ast::ReturnStatement>());
     return create<ast::Function>(caller, ast::VariableList(), void_type(),
-                                 std::move(body));
+                                 body);
   }
 
   /// Add In/Out variables to the global variables
@@ -113,8 +112,8 @@ class InspectorHelper {
           create<ast::Variable>(in, ast::StorageClass::kInput, u32_type());
       auto* out_var =
           create<ast::Variable>(out, ast::StorageClass::kOutput, u32_type());
-      mod()->AddGlobalVariable(std::move(in_var));
-      mod()->AddGlobalVariable(std::move(out_var));
+      mod()->AddGlobalVariable(in_var);
+      mod()->AddGlobalVariable(out_var);
     }
   }
 
@@ -135,8 +134,7 @@ class InspectorHelper {
           create<ast::IdentifierExpression>(in)));
     }
     body->append(create<ast::ReturnStatement>());
-    return create<ast::Function>(name, ast::VariableList(), void_type(),
-                                 std::move(body));
+    return create<ast::Function>(name, ast::VariableList(), void_type(), body);
   }
 
   /// Generates a function that references in/out variables and calls another
@@ -159,12 +157,12 @@ class InspectorHelper {
           create<ast::IdentifierExpression>(in)));
     }
     auto* ident_expr = create<ast::IdentifierExpression>(callee);
-    auto* call_expr = create<ast::CallExpression>(std::move(ident_expr),
-                                                  ast::ExpressionList());
-    body->append(create<ast::CallStatement>(std::move(call_expr)));
+    auto* call_expr =
+        create<ast::CallExpression>(ident_expr, ast::ExpressionList());
+    body->append(create<ast::CallStatement>(call_expr));
     body->append(create<ast::ReturnStatement>());
     return create<ast::Function>(caller, ast::VariableList(), void_type(),
-                                 std::move(body));
+                                 body);
   }
 
   /// Add a Constant ID to the global variables.
@@ -183,12 +181,12 @@ class InspectorHelper {
     dvar->set_is_const(true);
     ast::VariableDecorationList decos;
     decos.push_back(create<ast::ConstantIdDecoration>(id, Source{}));
-    dvar->set_decorations(std::move(decos));
+    dvar->set_decorations(decos);
     if (val) {
       dvar->set_constructor(
           create<ast::ScalarConstructorExpression>(MakeLiteral(type, val)));
     }
-    mod()->AddGlobalVariable(std::move(dvar));
+    mod()->AddGlobalVariable(dvar);
   }
 
   /// @param type AST type of the literal, must resolve to BoolLiteral
@@ -261,7 +259,7 @@ class InspectorHelper {
           create<ast::StructMemberOffsetDecoration>(offset, Source{}));
 
       members.push_back(create<ast::StructMember>(
-          StructMemberName(members.size(), type), type, std::move(deco)));
+          StructMemberName(members.size(), type), type, deco));
     }
 
     ast::StructDecorationList decos;
@@ -269,9 +267,9 @@ class InspectorHelper {
       decos.push_back(create<ast::StructBlockDecoration>(Source{}));
     }
 
-    auto* str = create<ast::Struct>(std::move(decos), std::move(members));
+    auto* str = create<ast::Struct>(decos, members);
 
-    return std::make_unique<ast::type::StructType>(name, std::move(str));
+    return std::make_unique<ast::type::StructType>(name, str);
   }
 
   /// Generates types appropriate for using in an uniform buffer
@@ -345,9 +343,9 @@ class InspectorHelper {
 
     decorations.push_back(create<ast::BindingDecoration>(binding, Source{}));
     decorations.push_back(create<ast::SetDecoration>(set, Source{}));
-    var->set_decorations(std::move(decorations));
+    var->set_decorations(decorations);
 
-    mod()->AddGlobalVariable(std::move(var));
+    mod()->AddGlobalVariable(var);
   }
 
   /// Adds an uniform buffer variable to the module
@@ -408,7 +406,7 @@ class InspectorHelper {
 
     body->append(create<ast::ReturnStatement>());
     return create<ast::Function>(func_name, ast::VariableList(), void_type(),
-                                 std::move(body));
+                                 body);
   }
 
   /// Adds a regular sampler variable to the module
@@ -514,23 +512,21 @@ class InspectorHelper {
 
     auto* call_result = create<ast::Variable>(
         "sampler_result", ast::StorageClass::kFunction, vec_type(base_type, 4));
-    body->append(create<ast::VariableDeclStatement>(std::move(call_result)));
+    body->append(create<ast::VariableDeclStatement>(call_result));
 
     ast::ExpressionList call_params;
     call_params.push_back(create<ast::IdentifierExpression>(texture_name));
     call_params.push_back(create<ast::IdentifierExpression>(sampler_name));
     call_params.push_back(create<ast::IdentifierExpression>(coords_name));
     auto* call_expr = create<ast::CallExpression>(
-        create<ast::IdentifierExpression>("textureSample"),
-        std::move(call_params));
+        create<ast::IdentifierExpression>("textureSample"), call_params);
 
     body->append(create<ast::AssignmentStatement>(
-        create<ast::IdentifierExpression>("sampler_result"),
-        std::move(call_expr)));
+        create<ast::IdentifierExpression>("sampler_result"), call_expr));
     body->append(create<ast::ReturnStatement>());
 
     return create<ast::Function>(func_name, ast::VariableList(), void_type(),
-                                 std::move(body));
+                                 body);
   }
 
   /// Generates a function that references a specific comparison sampler
@@ -554,7 +550,7 @@ class InspectorHelper {
 
     auto* call_result = create<ast::Variable>(
         "sampler_result", ast::StorageClass::kFunction, base_type);
-    body->append(create<ast::VariableDeclStatement>(std::move(call_result)));
+    body->append(create<ast::VariableDeclStatement>(call_result));
 
     ast::ExpressionList call_params;
     call_params.push_back(create<ast::IdentifierExpression>(texture_name));
@@ -562,16 +558,14 @@ class InspectorHelper {
     call_params.push_back(create<ast::IdentifierExpression>(coords_name));
     call_params.push_back(create<ast::IdentifierExpression>(depth_name));
     auto* call_expr = create<ast::CallExpression>(
-        create<ast::IdentifierExpression>("textureSampleCompare"),
-        std::move(call_params));
+        create<ast::IdentifierExpression>("textureSampleCompare"), call_params);
 
     body->append(create<ast::AssignmentStatement>(
-        create<ast::IdentifierExpression>("sampler_result"),
-        std::move(call_expr)));
+        create<ast::IdentifierExpression>("sampler_result"), call_expr));
     body->append(create<ast::ReturnStatement>());
 
     return create<ast::Function>(func_name, ast::VariableList(), void_type(),
-                                 std::move(body));
+                                 body);
   }
 
   /// Gets an appropriate type for the data in a given texture type.
@@ -623,7 +617,7 @@ class InspectorHelper {
           std::make_unique<ast::type::ArrayType>(u32_type(), count);
       ast::ArrayDecorationList decos;
       decos.push_back(create<ast::StrideDecoration>(4, Source{}));
-      array_type_memo_[count]->set_decorations(std::move(decos));
+      array_type_memo_[count]->set_decorations(decos);
     }
     return array_type_memo_[count].get();
   }
@@ -726,7 +720,7 @@ TEST_F(InspectorGetEntryPointTest, OneEntryPoint) {
   auto* foo = MakeEmptyBodyFunction("foo");
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   auto result = inspector()->GetEntryPoints();
   ASSERT_FALSE(inspector()->has_error()) << inspector()->error();
@@ -741,12 +735,12 @@ TEST_F(InspectorGetEntryPointTest, MultipleEntryPoints) {
   auto* foo = MakeEmptyBodyFunction("foo");
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   auto* bar = MakeEmptyBodyFunction("bar");
   bar->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
-  mod()->AddFunction(std::move(bar));
+  mod()->AddFunction(bar);
 
   auto result = inspector()->GetEntryPoints();
   ASSERT_FALSE(inspector()->has_error()) << inspector()->error();
@@ -762,17 +756,17 @@ TEST_F(InspectorGetEntryPointTest, MultipleEntryPoints) {
 
 TEST_F(InspectorGetEntryPointTest, MixFunctionsAndEntryPoints) {
   auto* func = MakeEmptyBodyFunction("func");
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   auto* foo = MakeCallerBodyFunction("foo", "func");
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   auto* bar = MakeCallerBodyFunction("bar", "func");
   bar->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
-  mod()->AddFunction(std::move(bar));
+  mod()->AddFunction(bar);
 
   auto result = inspector()->GetEntryPoints();
   EXPECT_FALSE(inspector()->has_error());
@@ -790,7 +784,7 @@ TEST_F(InspectorGetEntryPointTest, DefaultWorkgroupSize) {
   auto* foo = MakeCallerBodyFunction("foo", "func");
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   auto result = inspector()->GetEntryPoints();
   ASSERT_FALSE(inspector()->has_error()) << inspector()->error();
@@ -808,7 +802,7 @@ TEST_F(InspectorGetEntryPointTest, NonDefaultWorkgroupSize) {
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
   foo->add_decoration(create<ast::WorkgroupDecoration>(8u, 2u, 1u, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   auto result = inspector()->GetEntryPoints();
   ASSERT_FALSE(inspector()->has_error()) << inspector()->error();
@@ -823,12 +817,12 @@ TEST_F(InspectorGetEntryPointTest, NonDefaultWorkgroupSize) {
 
 TEST_F(InspectorGetEntryPointTest, NoInOutVariables) {
   auto* func = MakeEmptyBodyFunction("func");
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   auto* foo = MakeCallerBodyFunction("foo", "func");
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   auto result = inspector()->GetEntryPoints();
   ASSERT_FALSE(inspector()->has_error()) << inspector()->error();
@@ -844,7 +838,7 @@ TEST_F(InspectorGetEntryPointTest, EntryPointInOutVariables) {
   auto* foo = MakeInOutVariableBodyFunction("foo", {{"in_var", "out_var"}});
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -863,12 +857,12 @@ TEST_F(InspectorGetEntryPointTest, FunctionInOutVariables) {
   AddInOutVariables({{"in_var", "out_var"}});
 
   auto* func = MakeInOutVariableBodyFunction("func", {{"in_var", "out_var"}});
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   auto* foo = MakeCallerBodyFunction("foo", "func");
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -887,13 +881,13 @@ TEST_F(InspectorGetEntryPointTest, RepeatedInOutVariables) {
   AddInOutVariables({{"in_var", "out_var"}});
 
   auto* func = MakeInOutVariableBodyFunction("func", {{"in_var", "out_var"}});
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   auto* foo = MakeInOutVariableCallerBodyFunction("foo", "func",
                                                   {{"in_var", "out_var"}});
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -915,7 +909,7 @@ TEST_F(InspectorGetEntryPointTest, EntryPointMultipleInOutVariables) {
       "foo", {{"in_var", "out_var"}, {"in2_var", "out2_var"}});
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -937,12 +931,12 @@ TEST_F(InspectorGetEntryPointTest, FunctionMultipleInOutVariables) {
 
   auto* func = MakeInOutVariableBodyFunction(
       "func", {{"in_var", "out_var"}, {"in2_var", "out2_var"}});
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   auto* foo = MakeCallerBodyFunction("foo", "func");
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -965,12 +959,12 @@ TEST_F(InspectorGetEntryPointTest, MultipleEntryPointsInOutVariables) {
   auto* foo = MakeInOutVariableBodyFunction("foo", {{"in_var", "out2_var"}});
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   auto* bar = MakeInOutVariableBodyFunction("bar", {{"in2_var", "out_var"}});
   bar->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
-  mod()->AddFunction(std::move(bar));
+  mod()->AddFunction(bar);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -998,18 +992,18 @@ TEST_F(InspectorGetEntryPointTest, MultipleEntryPointsSharedInOutVariables) {
   AddInOutVariables({{"in_var", "out_var"}, {"in2_var", "out2_var"}});
 
   auto* func = MakeInOutVariableBodyFunction("func", {{"in2_var", "out2_var"}});
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   auto* foo = MakeInOutVariableCallerBodyFunction("foo", "func",
                                                   {{"in_var", "out_var"}});
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   auto* bar = MakeCallerBodyFunction("bar", "func");
   bar->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
-  mod()->AddFunction(std::move(bar));
+  mod()->AddFunction(bar);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1061,7 +1055,7 @@ TEST_F(InspectorGetRemappedNameForEntryPointTest, DISABLED_OneEntryPoint) {
   auto* foo = MakeEmptyBodyFunction("foo");
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   auto result = inspector()->GetRemappedNameForEntryPoint("foo");
   ASSERT_FALSE(inspector()->has_error()) << inspector()->error();
@@ -1076,12 +1070,12 @@ TEST_F(InspectorGetRemappedNameForEntryPointTest,
   auto* foo = MakeEmptyBodyFunction("foo");
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   auto* bar = MakeEmptyBodyFunction("bar");
   bar->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
-  mod()->AddFunction(std::move(bar));
+  mod()->AddFunction(bar);
 
   {
     auto result = inspector()->GetRemappedNameForEntryPoint("foo");
@@ -1199,12 +1193,12 @@ TEST_F(InspectorGetUniformBufferResourceBindingsTest, NonEntryPointFunc) {
 
   auto* ub_func = MakeStructVariableReferenceBodyFunction("ub_func", "foo_ub",
                                                           {{0, i32_type()}});
-  mod()->AddFunction(std::move(ub_func));
+  mod()->AddFunction(ub_func);
 
   auto* ep_func = MakeCallerBodyFunction("ep_func", "ub_func");
   ep_func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(ep_func));
+  mod()->AddFunction(ep_func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1218,26 +1212,24 @@ TEST_F(InspectorGetUniformBufferResourceBindingsTest, MissingBlockDeco) {
   ast::StructMemberDecorationList deco;
   deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
 
-  members.push_back(
-      create<ast::StructMember>(StructMemberName(members.size(), i32_type()),
-                                i32_type(), std::move(deco)));
+  members.push_back(create<ast::StructMember>(
+      StructMemberName(members.size(), i32_type()), i32_type(), deco));
 
   ast::StructDecorationList decos;
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
-  auto foo_type =
-      std::make_unique<ast::type::StructType>("foo_type", std::move(str));
+  auto* str = create<ast::Struct>(decos, members);
+  auto foo_type = std::make_unique<ast::type::StructType>("foo_type", str);
 
   AddUniformBuffer("foo_ub", foo_type.get(), 0, 0);
 
   auto* ub_func = MakeStructVariableReferenceBodyFunction("ub_func", "foo_ub",
                                                           {{0, i32_type()}});
-  mod()->AddFunction(std::move(ub_func));
+  mod()->AddFunction(ub_func);
 
   auto* ep_func = MakeCallerBodyFunction("ep_func", "ub_func");
   ep_func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(ep_func));
+  mod()->AddFunction(ep_func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1255,12 +1247,12 @@ TEST_F(InspectorGetUniformBufferResourceBindingsTest, Simple) {
 
   auto* ub_func = MakeStructVariableReferenceBodyFunction("ub_func", "foo_ub",
                                                           {{0, i32_type()}});
-  mod()->AddFunction(std::move(ub_func));
+  mod()->AddFunction(ub_func);
 
   auto* ep_func = MakeCallerBodyFunction("ep_func", "ub_func");
   ep_func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(ep_func));
+  mod()->AddFunction(ep_func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1282,12 +1274,12 @@ TEST_F(InspectorGetUniformBufferResourceBindingsTest, MultipleMembers) {
 
   auto* ub_func = MakeStructVariableReferenceBodyFunction(
       "ub_func", "foo_ub", {{0, i32_type()}, {1, u32_type()}, {2, f32_type()}});
-  mod()->AddFunction(std::move(ub_func));
+  mod()->AddFunction(ub_func);
 
   auto* ep_func = MakeCallerBodyFunction("ep_func", "ub_func");
   ep_func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(ep_func));
+  mod()->AddFunction(ep_func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1314,7 +1306,7 @@ TEST_F(InspectorGetUniformBufferResourceBindingsTest, MultipleUniformBuffers) {
     auto* ub_func = MakeStructVariableReferenceBodyFunction(
         func_name, var_name,
         {{0, i32_type()}, {1, u32_type()}, {2, f32_type()}});
-    mod()->AddFunction(std::move(ub_func));
+    mod()->AddFunction(ub_func);
   };
   AddReferenceFunc("ub_foo_func", "ub_foo");
   AddReferenceFunc("ub_bar_func", "ub_bar");
@@ -1322,9 +1314,9 @@ TEST_F(InspectorGetUniformBufferResourceBindingsTest, MultipleUniformBuffers) {
 
   auto AddFuncCall = [&](ast::BlockStatement* body, const std::string& callee) {
     auto* ident_expr = create<ast::IdentifierExpression>(callee);
-    auto* call_expr = create<ast::CallExpression>(std::move(ident_expr),
-                                                  ast::ExpressionList());
-    body->append(create<ast::CallStatement>(std::move(call_expr)));
+    auto* call_expr =
+        create<ast::CallExpression>(ident_expr, ast::ExpressionList());
+    body->append(create<ast::CallStatement>(call_expr));
   };
   auto* body = create<ast::BlockStatement>();
 
@@ -1333,12 +1325,12 @@ TEST_F(InspectorGetUniformBufferResourceBindingsTest, MultipleUniformBuffers) {
   AddFuncCall(body, "ub_baz_func");
 
   body->append(create<ast::ReturnStatement>());
-  ast::Function* func = create<ast::Function>("ep_func", ast::VariableList(),
-                                              void_type(), std::move(body));
+  ast::Function* func =
+      create<ast::Function>("ep_func", ast::VariableList(), void_type(), body);
 
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1368,12 +1360,12 @@ TEST_F(InspectorGetUniformBufferResourceBindingsTest, ContainingArray) {
 
   auto* ub_func = MakeStructVariableReferenceBodyFunction("ub_func", "foo_ub",
                                                           {{0, i32_type()}});
-  mod()->AddFunction(std::move(ub_func));
+  mod()->AddFunction(ub_func);
 
   auto* ep_func = MakeCallerBodyFunction("ep_func", "ub_func");
   ep_func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(ep_func));
+  mod()->AddFunction(ep_func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1395,12 +1387,12 @@ TEST_F(InspectorGetStorageBufferResourceBindingsTest, Simple) {
 
   auto* sb_func = MakeStructVariableReferenceBodyFunction("sb_func", "foo_sb",
                                                           {{0, i32_type()}});
-  mod()->AddFunction(std::move(sb_func));
+  mod()->AddFunction(sb_func);
 
   auto* ep_func = MakeCallerBodyFunction("ep_func", "sb_func");
   ep_func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(ep_func));
+  mod()->AddFunction(ep_func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1422,12 +1414,12 @@ TEST_F(InspectorGetStorageBufferResourceBindingsTest, MultipleMembers) {
 
   auto* sb_func = MakeStructVariableReferenceBodyFunction(
       "sb_func", "foo_sb", {{0, i32_type()}, {1, u32_type()}, {2, f32_type()}});
-  mod()->AddFunction(std::move(sb_func));
+  mod()->AddFunction(sb_func);
 
   auto* ep_func = MakeCallerBodyFunction("ep_func", "sb_func");
   ep_func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(ep_func));
+  mod()->AddFunction(ep_func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1454,7 +1446,7 @@ TEST_F(InspectorGetStorageBufferResourceBindingsTest, MultipleStorageBuffers) {
     auto* sb_func = MakeStructVariableReferenceBodyFunction(
         func_name, var_name,
         {{0, i32_type()}, {1, u32_type()}, {2, f32_type()}});
-    mod()->AddFunction(std::move(sb_func));
+    mod()->AddFunction(sb_func);
   };
   AddReferenceFunc("sb_foo_func", "sb_foo");
   AddReferenceFunc("sb_bar_func", "sb_bar");
@@ -1462,9 +1454,9 @@ TEST_F(InspectorGetStorageBufferResourceBindingsTest, MultipleStorageBuffers) {
 
   auto AddFuncCall = [&](ast::BlockStatement* body, const std::string& callee) {
     auto* ident_expr = create<ast::IdentifierExpression>(callee);
-    auto* call_expr = create<ast::CallExpression>(std::move(ident_expr),
-                                                  ast::ExpressionList());
-    body->append(create<ast::CallStatement>(std::move(call_expr)));
+    auto* call_expr =
+        create<ast::CallExpression>(ident_expr, ast::ExpressionList());
+    body->append(create<ast::CallStatement>(call_expr));
   };
   auto* body = create<ast::BlockStatement>();
 
@@ -1473,12 +1465,12 @@ TEST_F(InspectorGetStorageBufferResourceBindingsTest, MultipleStorageBuffers) {
   AddFuncCall(body, "sb_baz_func");
 
   body->append(create<ast::ReturnStatement>());
-  ast::Function* func = create<ast::Function>("ep_func", ast::VariableList(),
-                                              void_type(), std::move(body));
+  ast::Function* func =
+      create<ast::Function>("ep_func", ast::VariableList(), void_type(), body);
 
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1508,12 +1500,12 @@ TEST_F(InspectorGetStorageBufferResourceBindingsTest, ContainingArray) {
 
   auto* sb_func = MakeStructVariableReferenceBodyFunction("sb_func", "foo_sb",
                                                           {{0, i32_type()}});
-  mod()->AddFunction(std::move(sb_func));
+  mod()->AddFunction(sb_func);
 
   auto* ep_func = MakeCallerBodyFunction("ep_func", "sb_func");
   ep_func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(ep_func));
+  mod()->AddFunction(ep_func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1535,12 +1527,12 @@ TEST_F(InspectorGetStorageBufferResourceBindingsTest, ContainingRuntimeArray) {
 
   auto* sb_func = MakeStructVariableReferenceBodyFunction("sb_func", "foo_sb",
                                                           {{0, i32_type()}});
-  mod()->AddFunction(std::move(sb_func));
+  mod()->AddFunction(sb_func);
 
   auto* ep_func = MakeCallerBodyFunction("ep_func", "sb_func");
   ep_func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(ep_func));
+  mod()->AddFunction(ep_func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1562,12 +1554,12 @@ TEST_F(InspectorGetStorageBufferResourceBindingsTest, SkipReadOnly) {
 
   auto* sb_func = MakeStructVariableReferenceBodyFunction("sb_func", "foo_sb",
                                                           {{0, i32_type()}});
-  mod()->AddFunction(std::move(sb_func));
+  mod()->AddFunction(sb_func);
 
   auto* ep_func = MakeCallerBodyFunction("ep_func", "sb_func");
   ep_func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(ep_func));
+  mod()->AddFunction(ep_func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1585,12 +1577,12 @@ TEST_F(InspectorGetReadOnlyStorageBufferResourceBindingsTest, Simple) {
 
   auto* sb_func = MakeStructVariableReferenceBodyFunction("sb_func", "foo_sb",
                                                           {{0, i32_type()}});
-  mod()->AddFunction(std::move(sb_func));
+  mod()->AddFunction(sb_func);
 
   auto* ep_func = MakeCallerBodyFunction("ep_func", "sb_func");
   ep_func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(ep_func));
+  mod()->AddFunction(ep_func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1619,7 +1611,7 @@ TEST_F(InspectorGetReadOnlyStorageBufferResourceBindingsTest,
     auto* sb_func = MakeStructVariableReferenceBodyFunction(
         func_name, var_name,
         {{0, i32_type()}, {1, u32_type()}, {2, f32_type()}});
-    mod()->AddFunction(std::move(sb_func));
+    mod()->AddFunction(sb_func);
   };
   AddReferenceFunc("sb_foo_func", "sb_foo");
   AddReferenceFunc("sb_bar_func", "sb_bar");
@@ -1627,9 +1619,9 @@ TEST_F(InspectorGetReadOnlyStorageBufferResourceBindingsTest,
 
   auto AddFuncCall = [&](ast::BlockStatement* body, const std::string& callee) {
     auto* ident_expr = create<ast::IdentifierExpression>(callee);
-    auto* call_expr = create<ast::CallExpression>(std::move(ident_expr),
-                                                  ast::ExpressionList());
-    body->append(create<ast::CallStatement>(std::move(call_expr)));
+    auto* call_expr =
+        create<ast::CallExpression>(ident_expr, ast::ExpressionList());
+    body->append(create<ast::CallStatement>(call_expr));
   };
   auto* body = create<ast::BlockStatement>();
 
@@ -1638,12 +1630,12 @@ TEST_F(InspectorGetReadOnlyStorageBufferResourceBindingsTest,
   AddFuncCall(body, "sb_baz_func");
 
   body->append(create<ast::ReturnStatement>());
-  ast::Function* func = create<ast::Function>("ep_func", ast::VariableList(),
-                                              void_type(), std::move(body));
+  ast::Function* func =
+      create<ast::Function>("ep_func", ast::VariableList(), void_type(), body);
 
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1674,12 +1666,12 @@ TEST_F(InspectorGetReadOnlyStorageBufferResourceBindingsTest, ContainingArray) {
 
   auto* sb_func = MakeStructVariableReferenceBodyFunction("sb_func", "foo_sb",
                                                           {{0, i32_type()}});
-  mod()->AddFunction(std::move(sb_func));
+  mod()->AddFunction(sb_func);
 
   auto* ep_func = MakeCallerBodyFunction("ep_func", "sb_func");
   ep_func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(ep_func));
+  mod()->AddFunction(ep_func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1703,12 +1695,12 @@ TEST_F(InspectorGetReadOnlyStorageBufferResourceBindingsTest,
 
   auto* sb_func = MakeStructVariableReferenceBodyFunction("sb_func", "foo_sb",
                                                           {{0, i32_type()}});
-  mod()->AddFunction(std::move(sb_func));
+  mod()->AddFunction(sb_func);
 
   auto* ep_func = MakeCallerBodyFunction("ep_func", "sb_func");
   ep_func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(ep_func));
+  mod()->AddFunction(ep_func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1731,12 +1723,12 @@ TEST_F(InspectorGetReadOnlyStorageBufferResourceBindingsTest, SkipNonReadOnly) {
 
   auto* sb_func = MakeStructVariableReferenceBodyFunction("sb_func", "foo_sb",
                                                           {{0, i32_type()}});
-  mod()->AddFunction(std::move(sb_func));
+  mod()->AddFunction(sb_func);
 
   auto* ep_func = MakeCallerBodyFunction("ep_func", "sb_func");
   ep_func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(ep_func));
+  mod()->AddFunction(ep_func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1757,7 +1749,7 @@ TEST_F(InspectorGetSamplerResourceBindingsTest, Simple) {
       "ep", "foo_texture", "foo_sampler", "foo_coords", f32_type());
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1773,7 +1765,7 @@ TEST_F(InspectorGetSamplerResourceBindingsTest, NoSampler) {
   auto* func = MakeEmptyBodyFunction("ep_func");
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1792,12 +1784,12 @@ TEST_F(InspectorGetSamplerResourceBindingsTest, InFunction) {
 
   auto* foo_func = MakeSamplerReferenceBodyFunction(
       "foo_func", "foo_texture", "foo_sampler", "foo_coords", f32_type());
-  mod()->AddFunction(std::move(foo_func));
+  mod()->AddFunction(foo_func);
 
   auto* ep_func = MakeCallerBodyFunction("ep_func", "foo_func");
   ep_func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(ep_func));
+  mod()->AddFunction(ep_func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1820,7 +1812,7 @@ TEST_F(InspectorGetSamplerResourceBindingsTest, UnknownEntryPoint) {
       "ep", "foo_texture", "foo_sampler", "foo_coords", f32_type());
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1841,7 +1833,7 @@ TEST_F(InspectorGetSamplerResourceBindingsTest, SkipsComparisonSamplers) {
       f32_type());
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1864,7 +1856,7 @@ TEST_F(InspectorGetComparisonSamplerResourceBindingsTest, Simple) {
       f32_type());
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1880,7 +1872,7 @@ TEST_F(InspectorGetComparisonSamplerResourceBindingsTest, NoSampler) {
   auto* func = MakeEmptyBodyFunction("ep_func");
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1901,12 +1893,12 @@ TEST_F(InspectorGetComparisonSamplerResourceBindingsTest, InFunction) {
   auto* foo_func = MakeComparisonSamplerReferenceBodyFunction(
       "foo_func", "foo_texture", "foo_sampler", "foo_coords", "foo_depth",
       f32_type());
-  mod()->AddFunction(std::move(foo_func));
+  mod()->AddFunction(foo_func);
 
   auto* ep_func = MakeCallerBodyFunction("ep_func", "foo_func");
   ep_func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(ep_func));
+  mod()->AddFunction(ep_func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1931,7 +1923,7 @@ TEST_F(InspectorGetComparisonSamplerResourceBindingsTest, UnknownEntryPoint) {
       f32_type());
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1950,7 +1942,7 @@ TEST_F(InspectorGetComparisonSamplerResourceBindingsTest, SkipsSamplers) {
       "ep", "foo_texture", "foo_sampler", "foo_coords", f32_type());
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -1964,7 +1956,7 @@ TEST_F(InspectorGetSampledTextureResourceBindingsTest, Empty) {
   auto* foo = MakeEmptyBodyFunction("foo");
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   auto result = inspector()->GetSampledTextureResourceBindings("foo");
   ASSERT_FALSE(inspector()->has_error()) << inspector()->error();
@@ -1986,7 +1978,7 @@ TEST_P(InspectorGetSampledTextureResourceBindingsTestWithParam, textureSample) {
       GetBaseType(GetParam().sampled_kind));
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -2093,7 +2085,7 @@ TEST_F(InspectorGetMultisampledTextureResourceBindingsTest, Empty) {
   auto* foo = MakeEmptyBodyFunction("foo");
   foo->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(foo));
+  mod()->AddFunction(foo);
 
   auto result = inspector()->GetSampledTextureResourceBindings("foo");
   ASSERT_FALSE(inspector()->has_error()) << inspector()->error();
@@ -2116,7 +2108,7 @@ TEST_P(InspectorGetMultisampledTextureResourceBindingsTestWithParam,
       GetBaseType(GetParam().sampled_kind));
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
diff --git a/src/reader/spirv/function.cc b/src/reader/spirv/function.cc
index ebdca700c9..51010cbffd 100644
--- a/src/reader/spirv/function.cc
+++ b/src/reader/spirv/function.cc
@@ -517,11 +517,10 @@ void FunctionEmitter::PushGuard(const std::string& guard_name,
   auto* cond = create<ast::IdentifierExpression>(guard_name);
   auto* body = create<ast::BlockStatement>();
   auto* const guard_stmt =
-      AddStatement(create<ast::IfStatement>(std::move(cond), std::move(body)))
-          ->AsIf();
+      AddStatement(create<ast::IfStatement>(cond, body))->AsIf();
   PushNewStatementBlock(top.construct_, end_id,
                         [guard_stmt](StatementBlock* s) {
-                          guard_stmt->set_body(std::move(s->statements_));
+                          guard_stmt->set_body(s->statements_);
                         });
 }
 
@@ -531,12 +530,11 @@ void FunctionEmitter::PushTrueGuard(uint32_t end_id) {
   auto* cond = MakeTrue();
   auto* body = create<ast::BlockStatement>();
   auto* const guard_stmt =
-      AddStatement(create<ast::IfStatement>(std::move(cond), std::move(body)))
-          ->AsIf();
+      AddStatement(create<ast::IfStatement>(cond, body))->AsIf();
   guard_stmt->set_condition(MakeTrue());
   PushNewStatementBlock(top.construct_, end_id,
                         [guard_stmt](StatementBlock* s) {
-                          guard_stmt->set_body(std::move(s->statements_));
+                          guard_stmt->set_body(s->statements_);
                         });
 }
 
@@ -549,7 +547,7 @@ ast::Statement* FunctionEmitter::AddStatement(ast::Statement* statement) {
   assert(!statements_stack_.empty());
   auto* result = statement;
   if (result != nullptr) {
-    statements_stack_.back().statements_->append(std::move(statement));
+    statements_stack_.back().statements_->append(statement);
   }
   return result;
 }
@@ -557,7 +555,7 @@ ast::Statement* FunctionEmitter::AddStatement(ast::Statement* statement) {
 ast::Statement* FunctionEmitter::AddStatementForInstruction(
     ast::Statement* statement,
     const spvtools::opt::Instruction& inst) {
-  auto* node = AddStatement(std::move(statement));
+  auto* node = AddStatement(statement);
   ApplySourceForInstruction(node, inst);
   return node;
 }
@@ -592,8 +590,8 @@ bool FunctionEmitter::Emit() {
                      "element but has "
                   << statements_stack_.size();
   }
-  auto* body = std::move(statements_stack_[0].statements_);
-  parser_impl_.get_module().functions().back()->set_body(std::move(body));
+  auto* body = statements_stack_[0].statements_;
+  parser_impl_.get_module().functions().back()->set_body(body);
   // Maintain the invariant by repopulating the one and only element.
   statements_stack_.clear();
   PushNewStatementBlock(constructs_[0].get(), 0, nullptr);
@@ -635,7 +633,7 @@ bool FunctionEmitter::EmitFunctionDeclaration() {
               param->result_id(), ast::StorageClass::kNone, ast_type);
           // Parameters are treated as const declarations.
           ast_param->set_is_const(true);
-          ast_params.emplace_back(std::move(ast_param));
+          ast_params.emplace_back(ast_param);
           // The value is accessible by name.
           identifier_values_.insert(param->result_id());
         } else {
@@ -655,7 +653,7 @@ bool FunctionEmitter::EmitFunctionDeclaration() {
         create<ast::StageDecoration>(ep_info_->stage, Source{}));
   }
 
-  ast_module_.AddFunction(std::move(ast_fn));
+  ast_module_.AddFunction(ast_fn);
 
   return success();
 }
@@ -1704,8 +1702,8 @@ bool FunctionEmitter::EmitFunctionVariables() {
           parser_impl_.MakeConstantExpression(inst.GetSingleWordInOperand(1))
               .expr);
     }
-    auto* var_decl_stmt = create<ast::VariableDeclStatement>(std::move(var));
-    AddStatementForInstruction(std::move(var_decl_stmt), inst);
+    auto* var_decl_stmt = create<ast::VariableDeclStatement>(var);
+    AddStatementForInstruction(var_decl_stmt, inst);
     // Save this as an already-named value.
     identifier_values_.insert(inst.result_id());
   }
@@ -1972,8 +1970,8 @@ bool FunctionEmitter::EmitIfStart(const BlockInfo& block_info) {
     auto* guard_var = create<ast::Variable>(
         guard_name, ast::StorageClass::kFunction, parser_impl_.BoolType());
     guard_var->set_constructor(MakeTrue());
-    auto* guard_decl = create<ast::VariableDeclStatement>(std::move(guard_var));
-    AddStatement(std::move(guard_decl));
+    auto* guard_decl = create<ast::VariableDeclStatement>(guard_var);
+    AddStatement(guard_decl);
   }
 
   const auto condition_id =
@@ -1981,8 +1979,7 @@ bool FunctionEmitter::EmitIfStart(const BlockInfo& block_info) {
   auto* cond = MakeExpression(condition_id).expr;
   auto* body = create<ast::BlockStatement>();
   auto* const if_stmt =
-      AddStatement(create<ast::IfStatement>(std::move(cond), std::move(body)))
-          ->AsIf();
+      AddStatement(create<ast::IfStatement>(cond, body))->AsIf();
 
   // Generate the code for the condition.
 
@@ -2029,7 +2026,7 @@ bool FunctionEmitter::EmitIfStart(const BlockInfo& block_info) {
       // The "then" consists of the statement list
       // from the top of statments stack, without an
       // elseif condition.
-      if_stmt->set_body(std::move(s->statements_));
+      if_stmt->set_body(s->statements_);
     });
   };
 
@@ -2043,8 +2040,8 @@ bool FunctionEmitter::EmitIfStart(const BlockInfo& block_info) {
             // statments stack, without an elseif condition.
             ast::ElseStatementList else_stmts;
             else_stmts.emplace_back(
-                create<ast::ElseStatement>(nullptr, std::move(s->statements_)));
-            if_stmt->set_else_statements(std::move(else_stmts));
+                create<ast::ElseStatement>(nullptr, s->statements_));
+            if_stmt->set_else_statements(else_stmts);
           }
         });
   };
@@ -2099,7 +2096,7 @@ bool FunctionEmitter::EmitSwitchStart(const BlockInfo& block_info) {
   const auto selector_id = branch->GetSingleWordInOperand(0);
   // Generate the code for the selector.
   auto selector = MakeExpression(selector_id);
-  switch_stmt->set_condition(std::move(selector.expr));
+  switch_stmt->set_condition(selector.expr);
 
   // First, push the statement block for the entire switch.  All the actual
   // work is done by completion actions of the case/default clauses.
@@ -2177,7 +2174,7 @@ bool FunctionEmitter::EmitSwitchStart(const BlockInfo& block_info) {
               create<ast::SintLiteral>(selector.type, value32));
         }
       }
-      clause->set_selectors(std::move(selectors));
+      clause->set_selectors(selectors);
     }
 
     // Where does this clause end?
@@ -2185,7 +2182,7 @@ bool FunctionEmitter::EmitSwitchStart(const BlockInfo& block_info) {
                                                       : construct->end_id;
 
     PushNewStatementBlock(construct, end_id, [clause](StatementBlock* s) {
-      clause->set_body(std::move(s->statements_));
+      clause->set_body(s->statements_);
     });
 
     if ((default_info == clause_heads[i]) && has_selectors &&
@@ -2193,8 +2190,8 @@ bool FunctionEmitter::EmitSwitchStart(const BlockInfo& block_info) {
       // Generate a default clause with a just fallthrough.
       auto* stmts = create<ast::BlockStatement>();
       stmts->append(create<ast::FallthroughStatement>());
-      auto* case_stmt = create<ast::CaseStatement>(std::move(stmts));
-      cases->emplace_back(std::move(case_stmt));
+      auto* case_stmt = create<ast::CaseStatement>(stmts);
+      cases->emplace_back(case_stmt);
     }
 
     if (i == 0) {
@@ -2216,7 +2213,7 @@ bool FunctionEmitter::EmitLoopStart(const Construct* construct) {
           ->AsLoop();
   PushNewStatementBlock(
       construct, construct->end_id,
-      [loop](StatementBlock* s) { loop->set_body(std::move(s->statements_)); });
+      [loop](StatementBlock* s) { loop->set_body(s->statements_); });
   return success();
 }
 
@@ -2229,10 +2226,9 @@ bool FunctionEmitter::EmitContinuingStart(const Construct* construct) {
                      "expected loop on top of stack";
   }
   auto* loop = loop_candidate->AsLoop();
-  PushNewStatementBlock(construct, construct->end_id,
-                        [loop](StatementBlock* s) {
-                          loop->set_continuing(std::move(s->statements_));
-                        });
+  PushNewStatementBlock(
+      construct, construct->end_id,
+      [loop](StatementBlock* s) { loop->set_continuing(s->statements_); });
   return success();
 }
 
@@ -2244,7 +2240,7 @@ bool FunctionEmitter::EmitNormalTerminator(const BlockInfo& block_info) {
       return true;
     case SpvOpReturnValue: {
       auto value = MakeExpression(terminator.GetSingleWordInOperand(0));
-      AddStatement(create<ast::ReturnStatement>(std::move(value.expr)));
+      AddStatement(create<ast::ReturnStatement>(value.expr));
     }
       return true;
     case SpvOpKill:
@@ -2296,11 +2292,11 @@ bool FunctionEmitter::EmitNormalTerminator(const BlockInfo& block_info) {
       // The fallthrough case is special because WGSL requires the fallthrough
       // statement to be last in the case clause.
       if (true_kind == EdgeKind::kCaseFallThrough) {
-        return EmitConditionalCaseFallThrough(block_info, std::move(cond),
-                                              false_kind, *false_info, true);
+        return EmitConditionalCaseFallThrough(block_info, cond, false_kind,
+                                              *false_info, true);
       } else if (false_kind == EdgeKind::kCaseFallThrough) {
-        return EmitConditionalCaseFallThrough(block_info, std::move(cond),
-                                              true_kind, *true_info, false);
+        return EmitConditionalCaseFallThrough(block_info, cond, true_kind,
+                                              *true_info, false);
       }
 
       // At this point, at most one edge is kForward or kIfBreak.
@@ -2317,8 +2313,7 @@ bool FunctionEmitter::EmitNormalTerminator(const BlockInfo& block_info) {
       auto* false_branch =
           MakeBranchDetailed(block_info, *false_info, false, &flow_guard);
 
-      AddStatement(MakeSimpleIf(std::move(cond), std::move(true_branch),
-                                std::move(false_branch)));
+      AddStatement(MakeSimpleIf(cond, true_branch, false_branch));
       if (!flow_guard.empty()) {
         PushGuard(flow_guard, statements_stack_.back().end_id_);
       }
@@ -2413,20 +2408,19 @@ ast::Statement* FunctionEmitter::MakeSimpleIf(ast::Expression* condition,
   if ((then_stmt == nullptr) && (else_stmt == nullptr)) {
     return nullptr;
   }
-  auto* if_stmt = create<ast::IfStatement>(std::move(condition),
-                                           create<ast::BlockStatement>());
+  auto* if_stmt =
+      create<ast::IfStatement>(condition, create<ast::BlockStatement>());
   if (then_stmt != nullptr) {
     auto* stmts = create<ast::BlockStatement>();
-    stmts->append(std::move(then_stmt));
-    if_stmt->set_body(std::move(stmts));
+    stmts->append(then_stmt);
+    if_stmt->set_body(stmts);
   }
   if (else_stmt != nullptr) {
     auto* stmts = create<ast::BlockStatement>();
-    stmts->append(std::move(else_stmt));
+    stmts->append(else_stmt);
     ast::ElseStatementList else_stmts;
-    else_stmts.emplace_back(
-        create<ast::ElseStatement>(nullptr, std::move(stmts)));
-    if_stmt->set_else_statements(std::move(else_stmts));
+    else_stmts.emplace_back(create<ast::ElseStatement>(nullptr, stmts));
+    if_stmt->set_else_statements(else_stmts);
   }
   return if_stmt;
 }
@@ -2466,11 +2460,9 @@ bool FunctionEmitter::EmitConditionalCaseFallThrough(
                   << int(other_edge_kind);
   }
   if (fall_through_is_true_branch) {
-    AddStatement(
-        MakeSimpleIf(std::move(cond), nullptr, std::move(other_branch)));
+    AddStatement(MakeSimpleIf(cond, nullptr, other_branch));
   } else {
-    AddStatement(
-        MakeSimpleIf(std::move(cond), std::move(other_branch), nullptr));
+    AddStatement(MakeSimpleIf(cond, other_branch, nullptr));
   }
   AddStatement(create<ast::FallthroughStatement>());
 
@@ -2513,7 +2505,7 @@ bool FunctionEmitter::EmitStatementsInBasicBlock(const BlockInfo& block_info,
     auto* var =
         create<ast::Variable>(phi_var_name, ast::StorageClass::kFunction,
                               parser_impl_.ConvertType(def_inst->type_id()));
-    AddStatement(create<ast::VariableDeclStatement>(std::move(var)));
+    AddStatement(create<ast::VariableDeclStatement>(var));
   }
 
   // Emit regular statements.
@@ -2544,7 +2536,7 @@ bool FunctionEmitter::EmitStatementsInBasicBlock(const BlockInfo& block_info,
       const auto var_name = GetDefInfo(assignment.phi_id)->phi_var;
       auto expr = MakeExpression(assignment.value);
       AddStatement(create<ast::AssignmentStatement>(
-          create<ast::IdentifierExpression>(var_name), std::move(expr.expr)));
+          create<ast::IdentifierExpression>(var_name), expr.expr));
     }
   }
 
@@ -2563,10 +2555,10 @@ bool FunctionEmitter::EmitConstDefinition(
   if (!ast_const) {
     return false;
   }
-  ast_const->set_constructor(std::move(ast_expr.expr));
+  ast_const->set_constructor(ast_expr.expr);
   ast_const->set_is_const(true);
-  AddStatementForInstruction(
-      create<ast::VariableDeclStatement>(std::move(ast_const)), inst);
+  AddStatementForInstruction(create<ast::VariableDeclStatement>(ast_const),
+                             inst);
   // Save this as an already-named value.
   identifier_values_.insert(inst.result_id());
   return success();
@@ -2582,11 +2574,11 @@ bool FunctionEmitter::EmitConstDefOrWriteToHoistedVar(
     AddStatementForInstruction(
         create<ast::AssignmentStatement>(
             create<ast::IdentifierExpression>(namer_.Name(result_id)),
-            std::move(ast_expr.expr)),
+            ast_expr.expr),
         inst);
     return true;
   }
-  return EmitConstDefinition(inst, std::move(ast_expr));
+  return EmitConstDefinition(inst, ast_expr);
 }
 
 bool FunctionEmitter::EmitStatement(const spvtools::opt::Instruction& inst) {
@@ -2615,13 +2607,11 @@ bool FunctionEmitter::EmitStatement(const spvtools::opt::Instruction& inst) {
         def_info->num_uses != 1) {
       // Generate a const definition or an assignment to a hoisted definition
       // now and later use the const or variable name at the uses of this value.
-      return EmitConstDefOrWriteToHoistedVar(inst,
-                                             std::move(combinatorial_expr));
+      return EmitConstDefOrWriteToHoistedVar(inst, combinatorial_expr);
     }
     // It is harmless to defer emitting the expression until it's used.
     // Any supporting statements have already been emitted.
-    singly_used_values_.insert(
-        std::make_pair(result_id, std::move(combinatorial_expr)));
+    singly_used_values_.insert(std::make_pair(result_id, combinatorial_expr));
     return success();
   }
   if (failed()) {
@@ -2646,9 +2636,8 @@ bool FunctionEmitter::EmitStatement(const spvtools::opt::Instruction& inst) {
       // TODO(dneto): Order of evaluation?
       auto lhs = MakeExpression(ptr_id);
       auto rhs = MakeExpression(value_id);
-      AddStatementForInstruction(create<ast::AssignmentStatement>(
-                                     std::move(lhs.expr), std::move(rhs.expr)),
-                                 inst);
+      AddStatementForInstruction(
+          create<ast::AssignmentStatement>(lhs.expr, rhs.expr), inst);
       return success();
     }
     case SpvOpLoad: {
@@ -2658,7 +2647,7 @@ bool FunctionEmitter::EmitStatement(const spvtools::opt::Instruction& inst) {
       // The load result type is the pointee type of its operand.
       assert(expr.type->IsPointer());
       expr.type = expr.type->AsPointer()->type();
-      return EmitConstDefOrWriteToHoistedVar(inst, std::move(expr));
+      return EmitConstDefOrWriteToHoistedVar(inst, expr);
     }
     case SpvOpCopyObject: {
       // Arguably, OpCopyObject is purely combinatorial. On the other hand,
@@ -2666,14 +2655,14 @@ bool FunctionEmitter::EmitStatement(const spvtools::opt::Instruction& inst) {
       // a new named constant definition.
       auto expr = MakeExpression(inst.GetSingleWordInOperand(0));
       expr.type = RemapStorageClass(expr.type, result_id);
-      return EmitConstDefOrWriteToHoistedVar(inst, std::move(expr));
+      return EmitConstDefOrWriteToHoistedVar(inst, expr);
     }
     case SpvOpPhi: {
       // Emit a read from the associated state variable.
       TypedExpression expr{
           parser_impl_.ConvertType(inst.type_id()),
           create<ast::IdentifierExpression>(def_info->phi_var)};
-      return EmitConstDefOrWriteToHoistedVar(inst, std::move(expr));
+      return EmitConstDefOrWriteToHoistedVar(inst, expr);
     }
     case SpvOpFunctionCall:
       return EmitFunctionCall(inst);
@@ -2706,21 +2695,18 @@ TypedExpression FunctionEmitter::MaybeEmitCombinatorialValue(
   if (binary_op != ast::BinaryOp::kNone) {
     auto arg0 = MakeOperand(inst, 0);
     auto arg1 = MakeOperand(inst, 1);
-    auto* binary_expr = create<ast::BinaryExpression>(
-        binary_op, std::move(arg0.expr), std::move(arg1.expr));
-    TypedExpression result{ast_type, std::move(binary_expr)};
-    return parser_impl_.RectifyForcedResultType(std::move(result), opcode,
-                                                arg0.type);
+    auto* binary_expr =
+        create<ast::BinaryExpression>(binary_op, arg0.expr, arg1.expr);
+    TypedExpression result{ast_type, binary_expr};
+    return parser_impl_.RectifyForcedResultType(result, opcode, arg0.type);
   }
 
   auto unary_op = ast::UnaryOp::kNegation;
   if (GetUnaryOp(opcode, &unary_op)) {
     auto arg0 = MakeOperand(inst, 0);
-    auto* unary_expr =
-        create<ast::UnaryOpExpression>(unary_op, std::move(arg0.expr));
-    TypedExpression result{ast_type, std::move(unary_expr)};
-    return parser_impl_.RectifyForcedResultType(std::move(result), opcode,
-                                                arg0.type);
+    auto* unary_expr = create<ast::UnaryOpExpression>(unary_op, arg0.expr);
+    TypedExpression result{ast_type, unary_expr};
+    return parser_impl_.RectifyForcedResultType(result, opcode, arg0.type);
   }
 
   const char* unary_builtin_name = GetUnaryBuiltInFunctionName(opcode);
@@ -2750,11 +2736,11 @@ TypedExpression FunctionEmitter::MaybeEmitCombinatorialValue(
   if (negated_op != ast::BinaryOp::kNone) {
     auto arg0 = MakeOperand(inst, 0);
     auto arg1 = MakeOperand(inst, 1);
-    auto* binary_expr = create<ast::BinaryExpression>(
-        negated_op, std::move(arg0.expr), std::move(arg1.expr));
-    auto* negated_expr = create<ast::UnaryOpExpression>(ast::UnaryOp::kNot,
-                                                        std::move(binary_expr));
-    return {ast_type, std::move(negated_expr)};
+    auto* binary_expr =
+        create<ast::BinaryExpression>(negated_op, arg0.expr, arg1.expr);
+    auto* negated_expr =
+        create<ast::UnaryOpExpression>(ast::UnaryOp::kNot, binary_expr);
+    return {ast_type, negated_expr};
   }
 
   if (opcode == SpvOpExtInst) {
@@ -2836,9 +2822,8 @@ TypedExpression FunctionEmitter::EmitGlslStd450ExtInst(
     operands.emplace_back(MakeOperand(inst, iarg).expr);
   }
   auto* ast_type = parser_impl_.ConvertType(inst.type_id());
-  auto* call =
-      create<ast::CallExpression>(std::move(func), std::move(operands));
-  return {ast_type, std::move(call)};
+  auto* call = create<ast::CallExpression>(func, std::move(operands));
+  return {ast_type, call};
 }
 
 TypedExpression FunctionEmitter::MakeAccessChain(
@@ -2956,13 +2941,12 @@ TypedExpression FunctionEmitter::MakeAccessChain(
           }
           auto* letter_index =
               create<ast::IdentifierExpression>(swizzles[index_const_val]);
-          next_expr = create<ast::MemberAccessorExpression>(
-              std::move(current_expr.expr), std::move(letter_index));
+          next_expr = create<ast::MemberAccessorExpression>(current_expr.expr,
+                                                            letter_index);
         } else {
           // Non-constant index. Use array syntax
           next_expr = create<ast::ArrayAccessorExpression>(
-              std::move(current_expr.expr),
-              std::move(MakeOperand(inst, index).expr));
+              current_expr.expr, MakeOperand(inst, index).expr);
         }
         // All vector components are the same type.
         pointee_type_id = pointee_type_inst->GetSingleWordInOperand(0);
@@ -2970,21 +2954,18 @@ TypedExpression FunctionEmitter::MakeAccessChain(
       case SpvOpTypeMatrix:
         // Use array syntax.
         next_expr = create<ast::ArrayAccessorExpression>(
-            std::move(current_expr.expr),
-            std::move(MakeOperand(inst, index).expr));
+            current_expr.expr, MakeOperand(inst, index).expr);
         // All matrix components are the same type.
         pointee_type_id = pointee_type_inst->GetSingleWordInOperand(0);
         break;
       case SpvOpTypeArray:
         next_expr = create<ast::ArrayAccessorExpression>(
-            std::move(current_expr.expr),
-            std::move(MakeOperand(inst, index).expr));
+            current_expr.expr, MakeOperand(inst, index).expr);
         pointee_type_id = pointee_type_inst->GetSingleWordInOperand(0);
         break;
       case SpvOpTypeRuntimeArray:
         next_expr = create<ast::ArrayAccessorExpression>(
-            std::move(current_expr.expr),
-            std::move(MakeOperand(inst, index).expr));
+            current_expr.expr, MakeOperand(inst, index).expr);
         pointee_type_id = pointee_type_inst->GetSingleWordInOperand(0);
         break;
       case SpvOpTypeStruct: {
@@ -3005,8 +2986,8 @@ TypedExpression FunctionEmitter::MakeAccessChain(
         auto* member_access = create<ast::IdentifierExpression>(
             namer_.GetMemberName(pointee_type_id, uint32_t(index_const_val)));
 
-        next_expr = create<ast::MemberAccessorExpression>(
-            std::move(current_expr.expr), std::move(member_access));
+        next_expr = create<ast::MemberAccessorExpression>(current_expr.expr,
+                                                          member_access);
         pointee_type_id = pointee_type_inst->GetSingleWordInOperand(
             static_cast<uint32_t>(index_const_val));
         break;
@@ -3021,7 +3002,7 @@ TypedExpression FunctionEmitter::MakeAccessChain(
     auto* ast_pointer_type = parser_impl_.ConvertType(pointer_type_id);
     assert(ast_pointer_type);
     assert(ast_pointer_type->IsPointer());
-    current_expr = TypedExpression{ast_pointer_type, std::move(next_expr)};
+    current_expr = TypedExpression{ast_pointer_type, next_expr};
   }
   return current_expr;
 }
@@ -3080,8 +3061,8 @@ TypedExpression FunctionEmitter::MakeCompositeExtract(
         }
         auto* letter_index =
             create<ast::IdentifierExpression>(swizzles[index_val]);
-        next_expr = create<ast::MemberAccessorExpression>(
-            std::move(current_expr.expr), std::move(letter_index));
+        next_expr = create<ast::MemberAccessorExpression>(current_expr.expr,
+                                                          letter_index);
         // All vector components are the same type.
         current_type_id = current_type_inst->GetSingleWordInOperand(0);
         break;
@@ -3101,8 +3082,8 @@ TypedExpression FunctionEmitter::MakeCompositeExtract(
                  << ((sizeof(swizzles) / sizeof(swizzles[0])) - 1);
         }
         // Use array syntax.
-        next_expr = create<ast::ArrayAccessorExpression>(
-            std::move(current_expr.expr), make_index(index_val));
+        next_expr = create<ast::ArrayAccessorExpression>(current_expr.expr,
+                                                         make_index(index_val));
         // All matrix components are the same type.
         current_type_id = current_type_inst->GetSingleWordInOperand(0);
         break;
@@ -3111,8 +3092,8 @@ TypedExpression FunctionEmitter::MakeCompositeExtract(
         // The array size could be a spec constant, and so it's not always
         // statically checkable.  Instead, rely on a runtime index clamp
         // or runtime check to keep this safe.
-        next_expr = create<ast::ArrayAccessorExpression>(
-            std::move(current_expr.expr), make_index(index_val));
+        next_expr = create<ast::ArrayAccessorExpression>(current_expr.expr,
+                                                         make_index(index_val));
         current_type_id = current_type_inst->GetSingleWordInOperand(0);
         break;
       case SpvOpTypeRuntimeArray:
@@ -3129,8 +3110,8 @@ TypedExpression FunctionEmitter::MakeCompositeExtract(
         auto* member_access = create<ast::IdentifierExpression>(
             namer_.GetMemberName(current_type_id, uint32_t(index_val)));
 
-        next_expr = create<ast::MemberAccessorExpression>(
-            std::move(current_expr.expr), std::move(member_access));
+        next_expr = create<ast::MemberAccessorExpression>(current_expr.expr,
+                                                          member_access);
         current_type_id = current_type_inst->GetSingleWordInOperand(index_val);
         break;
       }
@@ -3139,8 +3120,8 @@ TypedExpression FunctionEmitter::MakeCompositeExtract(
                << current_type_inst->PrettyPrint();
         return {};
     }
-    current_expr = TypedExpression{parser_impl_.ConvertType(current_type_id),
-                                   std::move(next_expr)};
+    current_expr =
+        TypedExpression{parser_impl_.ConvertType(current_type_id), next_expr};
   }
   return current_expr;
 }
@@ -3197,8 +3178,8 @@ TypedExpression FunctionEmitter::MakeVectorShuffle(
       return {};
     }
   }
-  return {result_type, create<ast::TypeConstructorExpression>(
-                           result_type, std::move(values))};
+  return {result_type,
+          create<ast::TypeConstructorExpression>(result_type, values)};
 }
 
 bool FunctionEmitter::RegisterLocallyDefinedValues() {
@@ -3487,15 +3468,15 @@ TypedExpression FunctionEmitter::MakeNumericConversion(
   }
 
   ast::ExpressionList params;
-  params.push_back(std::move(arg_expr.expr));
+  params.push_back(arg_expr.expr);
   TypedExpression result{expr_type, create<ast::TypeConstructorExpression>(
                                         expr_type, std::move(params))};
 
   if (requested_type == expr_type) {
     return result;
   }
-  return {requested_type, create<ast::BitcastExpression>(
-                              requested_type, std::move(result.expr))};
+  return {requested_type,
+          create<ast::BitcastExpression>(requested_type, result.expr)};
 }
 
 bool FunctionEmitter::EmitFunctionCall(const spvtools::opt::Instruction& inst) {
@@ -3507,8 +3488,7 @@ bool FunctionEmitter::EmitFunctionCall(const spvtools::opt::Instruction& inst) {
   for (uint32_t iarg = 1; iarg < inst.NumInOperands(); ++iarg) {
     params.emplace_back(MakeOperand(inst, iarg).expr);
   }
-  auto* call_expr =
-      create<ast::CallExpression>(std::move(function), std::move(params));
+  auto* call_expr = create<ast::CallExpression>(function, std::move(params));
   auto* result_type = parser_impl_.ConvertType(inst.type_id());
   if (!result_type) {
     return Fail() << "internal error: no mapped type result of call: "
@@ -3516,13 +3496,11 @@ bool FunctionEmitter::EmitFunctionCall(const spvtools::opt::Instruction& inst) {
   }
 
   if (result_type->IsVoid()) {
-    return nullptr !=
-           AddStatementForInstruction(
-               create<ast::CallStatement>(std::move(call_expr)), inst);
+    return nullptr != AddStatementForInstruction(
+                          create<ast::CallStatement>(call_expr), inst);
   }
 
-  return EmitConstDefOrWriteToHoistedVar(inst,
-                                         {result_type, std::move(call_expr)});
+  return EmitConstDefOrWriteToHoistedVar(inst, {result_type, call_expr});
 }
 
 TypedExpression FunctionEmitter::MakeIntrinsicCall(
@@ -3537,15 +3515,14 @@ TypedExpression FunctionEmitter::MakeIntrinsicCall(
   for (uint32_t iarg = 0; iarg < inst.NumInOperands(); ++iarg) {
     params.emplace_back(MakeOperand(inst, iarg).expr);
   }
-  auto* call_expr =
-      create<ast::CallExpression>(std::move(ident), std::move(params));
+  auto* call_expr = create<ast::CallExpression>(ident, std::move(params));
   auto* result_type = parser_impl_.ConvertType(inst.type_id());
   if (!result_type) {
     Fail() << "internal error: no mapped type result of call: "
            << inst.PrettyPrint();
     return {};
   }
-  return {result_type, std::move(call_expr)};
+  return {result_type, call_expr};
 }
 
 TypedExpression FunctionEmitter::MakeSimpleSelect(
@@ -3563,10 +3540,10 @@ TypedExpression FunctionEmitter::MakeSimpleSelect(
   if (op_ty->IsVector() || op_ty->is_float_scalar() ||
       op_ty->is_integer_scalar() || op_ty->IsBool()) {
     ast::ExpressionList params;
-    params.push_back(std::move(operand1.expr));
-    params.push_back(std::move(operand2.expr));
+    params.push_back(operand1.expr);
+    params.push_back(operand2.expr);
     // The condition goes last.
-    params.push_back(std::move(condition.expr));
+    params.push_back(condition.expr);
     return {operand1.type, create<ast::CallExpression>(
                                create<ast::IdentifierExpression>("select"),
                                std::move(params))};
diff --git a/src/reader/spirv/parser_impl.cc b/src/reader/spirv/parser_impl.cc
index 6677bb8ef0..7cc274d485 100644
--- a/src/reader/spirv/parser_impl.cc
+++ b/src/reader/spirv/parser_impl.cc
@@ -851,7 +851,7 @@ ast::type::Type* ParserImpl::ConvertType(
           return nullptr;
         }
         if (ast_member_decoration) {
-          ast_member_decorations.push_back(std::move(ast_member_decoration));
+          ast_member_decorations.push_back(ast_member_decoration);
         }
       }
     }
@@ -863,7 +863,7 @@ ast::type::Type* ParserImpl::ConvertType(
     const auto member_name = namer_.GetMemberName(type_id, member_index);
     auto* ast_struct_member = create<ast::StructMember>(
         member_name, ast_member_ty, std::move(ast_member_decorations));
-    ast_members.push_back(std::move(ast_struct_member));
+    ast_members.push_back(ast_struct_member);
   }
 
   // Now make the struct.
@@ -872,7 +872,7 @@ ast::type::Type* ParserImpl::ConvertType(
 
   namer_.SuggestSanitizedName(type_id, "S");
   auto ast_struct_type = std::make_unique<ast::type::StructType>(
-      namer_.GetName(type_id), std::move(ast_struct));
+      namer_.GetName(type_id), ast_struct);
 
   auto* result = ctx_.type_mgr().Get(std::move(ast_struct_type));
   id_to_type_[type_id] = result;
@@ -991,21 +991,21 @@ bool ParserImpl::EmitScalarSpecConstants() {
       for (const auto& deco : GetDecorationsFor(inst.result_id())) {
         if ((deco.size() == 2) && (deco[0] == SpvDecorationSpecId)) {
           auto* cid = create<ast::ConstantIdDecoration>(deco[1], Source{});
-          spec_id_decos.push_back(std::move(cid));
+          spec_id_decos.push_back(cid);
           break;
         }
       }
       if (spec_id_decos.empty()) {
         // Register it as a named constant, without specialization id.
         ast_var->set_is_const(true);
-        ast_var->set_constructor(std::move(ast_expr));
-        ast_module_.AddGlobalVariable(std::move(ast_var));
+        ast_var->set_constructor(ast_expr);
+        ast_module_.AddGlobalVariable(ast_var);
       } else {
-        auto* ast_deco_var = create<ast::DecoratedVariable>(std::move(ast_var));
+        auto* ast_deco_var = create<ast::DecoratedVariable>(ast_var);
         ast_deco_var->set_is_const(true);
-        ast_deco_var->set_constructor(std::move(ast_expr));
+        ast_deco_var->set_constructor(ast_expr);
         ast_deco_var->set_decorations(std::move(spec_id_decos));
-        ast_module_.AddGlobalVariable(std::move(ast_deco_var));
+        ast_module_.AddGlobalVariable(ast_deco_var);
       }
       scalar_spec_constants_.insert(inst.result_id());
     }
@@ -1112,7 +1112,7 @@ bool ParserImpl::EmitModuleScopeVariables() {
           MakeConstantExpression(var.GetSingleWordInOperand(1)).expr);
     }
     // TODO(dneto): initializers (a.k.a. constructor expression)
-    ast_module_.AddGlobalVariable(std::move(ast_var));
+    ast_module_.AddGlobalVariable(ast_var);
   }
 
   // Emit gl_Position instead of gl_PerVertex
@@ -1129,7 +1129,7 @@ bool ParserImpl::EmitModuleScopeVariables() {
         create<ast::BuiltinDecoration>(ast::Builtin::kPosition, Source{}));
     var->set_decorations(std::move(decos));
 
-    ast_module_.AddGlobalVariable(std::move(var));
+    ast_module_.AddGlobalVariable(var);
   }
   return success_;
 }
@@ -1202,7 +1202,7 @@ ast::Variable* ParserImpl::MakeVariable(uint32_t id,
     }
   }
   if (!ast_decorations.empty()) {
-    auto* decorated_var = create<ast::DecoratedVariable>(std::move(ast_var));
+    auto* decorated_var = create<ast::DecoratedVariable>(ast_var);
     decorated_var->set_decorations(std::move(ast_decorations));
     ast_var = std::move(decorated_var);
   }
@@ -1284,7 +1284,7 @@ TypedExpression ParserImpl::MakeConstantExpression(uint32_t id) {
         // We've already emitted a diagnostic.
         return {};
       }
-      ast_components.emplace_back(std::move(ast_component.expr));
+      ast_components.emplace_back(ast_component.expr);
     }
     return {original_ast_type,
             create<ast::TypeConstructorExpression>(original_ast_type,
@@ -1394,15 +1394,14 @@ TypedExpression ParserImpl::RectifyOperandSignedness(SpvOp op,
     auto* unsigned_ty = unsigned_type_for_[type];
     if (unsigned_ty != nullptr) {
       // Conversion is required.
-      return {unsigned_ty, create<ast::BitcastExpression>(
-                               unsigned_ty, std::move(expr.expr))};
+      return {unsigned_ty,
+              create<ast::BitcastExpression>(unsigned_ty, expr.expr)};
     }
   } else if (requires_signed) {
     auto* signed_ty = signed_type_for_[type];
     if (signed_ty != nullptr) {
       // Conversion is required.
-      return {signed_ty,
-              create<ast::BitcastExpression>(signed_ty, std::move(expr.expr))};
+      return {signed_ty, create<ast::BitcastExpression>(signed_ty, expr.expr)};
     }
   }
   // We should not reach here.
@@ -1465,8 +1464,7 @@ TypedExpression ParserImpl::RectifyForcedResultType(
   if ((forced_result_ty == nullptr) || (forced_result_ty == expr.type)) {
     return expr;
   }
-  return {expr.type,
-          create<ast::BitcastExpression>(expr.type, std::move(expr.expr))};
+  return {expr.type, create<ast::BitcastExpression>(expr.type, expr.expr)};
 }
 
 bool ParserImpl::EmitFunctions() {
diff --git a/src/reader/wgsl/parser_impl.cc b/src/reader/wgsl/parser_impl.cc
index 50a1764a05..40b37e599a 100644
--- a/src/reader/wgsl/parser_impl.cc
+++ b/src/reader/wgsl/parser_impl.cc
@@ -268,7 +268,7 @@ Expect<bool> ParserImpl::expect_global_decl() {
       if (!expect("variable declaration", Token::Type::kSemicolon))
         return Failure::kErrored;
 
-      module_.AddGlobalVariable(std::move(gv.value));
+      module_.AddGlobalVariable(gv.value);
       return true;
     }
 
@@ -280,7 +280,7 @@ Expect<bool> ParserImpl::expect_global_decl() {
       if (!expect("constant declaration", Token::Type::kSemicolon))
         return Failure::kErrored;
 
-      module_.AddGlobalVariable(std::move(gc.value));
+      module_.AddGlobalVariable(gc.value);
       return true;
     }
 
@@ -322,7 +322,7 @@ Expect<bool> ParserImpl::expect_global_decl() {
   if (func.errored)
     errored = true;
   if (func.matched) {
-    module_.AddFunction(std::move(func.value));
+    module_.AddFunction(func.value);
     return true;
   }
 
@@ -348,23 +348,23 @@ Maybe<ast::Variable*> ParserImpl::global_variable_decl(
   if (!decl.matched)
     return Failure::kNoMatch;
 
-  auto* var = std::move(decl.value);
+  auto* var = decl.value;
 
   auto var_decos = cast_decorations<ast::VariableDecoration>(decos);
   if (var_decos.errored)
     return Failure::kErrored;
 
   if (var_decos.value.size() > 0) {
-    auto* dv = create<ast::DecoratedVariable>(std::move(var));
-    dv->set_decorations(std::move(var_decos.value));
-    var = std::move(dv);
+    auto* dv = create<ast::DecoratedVariable>(var);
+    dv->set_decorations(var_decos.value);
+    var = dv;
   }
 
   if (match(Token::Type::kEqual)) {
     auto expr = expect_const_expr();
     if (expr.errored)
       return Failure::kErrored;
-    var->set_constructor(std::move(expr.value));
+    var->set_constructor(expr.value);
   }
   return var;
 }
@@ -392,7 +392,7 @@ Maybe<ast::Variable*> ParserImpl::global_constant_decl() {
   if (init.errored)
     return Failure::kErrored;
 
-  var->set_constructor(std::move(init.value));
+  var->set_constructor(init.value);
 
   return var;
 }
@@ -1113,7 +1113,7 @@ Expect<ast::StructMemberList> ParserImpl::expect_struct_body_decl() {
           if (member.errored) {
             errored = true;
           } else {
-            members.push_back(std::move(member.value));
+            members.push_back(member.value);
           }
         }
 
@@ -1177,8 +1177,8 @@ Maybe<ast::Function*> ParserImpl::function_decl(ast::DecorationList& decos) {
   if (errored)
     return Failure::kErrored;
 
-  f->set_body(std::move(body.value));
-  return std::move(f.value);
+  f->set_body(body.value);
+  return f.value;
 }
 
 // function_type_decl
@@ -1252,7 +1252,7 @@ Expect<ast::VariableList> ParserImpl::expect_param_list() {
     // that it's not updatable after intially set.  This is unlike C or GLSL
     // which treat formal parameters like local variables that can be updated.
     var->set_is_const(true);
-    ret.push_back(std::move(var));
+    ret.push_back(var);
 
     if (!match(Token::Type::kComma))
       break;
@@ -1311,7 +1311,7 @@ Expect<ast::Expression*> ParserImpl::expect_paren_rhs_stmt() {
     if (!expr.matched)
       return add_error(peek(), "unable to parse expression");
 
-    return std::move(expr.value);
+    return expr.value;
   });
 }
 
@@ -1326,7 +1326,7 @@ Expect<ast::BlockStatement*> ParserImpl::expect_statements() {
     if (stmt.errored) {
       errored = true;
     } else if (stmt.matched) {
-      ret->append(std::move(stmt.value));
+      ret->append(stmt.value);
     } else {
       break;
     }
@@ -1371,31 +1371,31 @@ Maybe<ast::Statement*> ParserImpl::statement() {
   if (stmt_if.errored)
     return Failure::kErrored;
   if (stmt_if.matched)
-    return std::move(stmt_if.value);
+    return stmt_if.value;
 
   auto sw = switch_stmt();
   if (sw.errored)
     return Failure::kErrored;
   if (sw.matched)
-    return std::move(sw.value);
+    return sw.value;
 
   auto loop = loop_stmt();
   if (loop.errored)
     return Failure::kErrored;
   if (loop.matched)
-    return std::move(loop.value);
+    return loop.value;
 
   auto stmt_for = for_stmt();
   if (stmt_for.errored)
     return Failure::kErrored;
   if (stmt_for.matched)
-    return std::move(stmt_for.value);
+    return stmt_for.value;
 
   if (peek().IsBraceLeft()) {
     auto body = expect_body_stmt();
     if (body.errored)
       return Failure::kErrored;
-    return std::move(body.value);
+    return body.value;
   }
 
   return Failure::kNoMatch;
@@ -1415,37 +1415,37 @@ Maybe<ast::Statement*> ParserImpl::non_block_statement() {
     if (ret_stmt.errored)
       return Failure::kErrored;
     if (ret_stmt.matched)
-      return std::move(ret_stmt.value);
+      return ret_stmt.value;
 
     auto func = func_call_stmt();
     if (func.errored)
       return Failure::kErrored;
     if (func.matched)
-      return std::move(func.value);
+      return func.value;
 
     auto var = variable_stmt();
     if (var.errored)
       return Failure::kErrored;
     if (var.matched)
-      return std::move(var.value);
+      return var.value;
 
     auto b = break_stmt();
     if (b.errored)
       return Failure::kErrored;
     if (b.matched)
-      return std::move(b.value);
+      return b.value;
 
     auto cont = continue_stmt();
     if (cont.errored)
       return Failure::kErrored;
     if (cont.matched)
-      return std::move(cont.value);
+      return cont.value;
 
     auto assign = assignment_stmt();
     if (assign.errored)
       return Failure::kErrored;
     if (assign.matched)
-      return std::move(assign.value);
+      return assign.value;
 
     Source source;
     if (match(Token::Type::kDiscard, &source))
@@ -1475,7 +1475,7 @@ Maybe<ast::ReturnStatement*> ParserImpl::return_stmt() {
     return Failure::kErrored;
 
   // TODO(bclayton): Check matched?
-  return create<ast::ReturnStatement>(source, std::move(expr.value));
+  return create<ast::ReturnStatement>(source, expr.value);
 }
 
 // variable_stmt
@@ -1500,9 +1500,9 @@ Maybe<ast::VariableDeclStatement*> ParserImpl::variable_stmt() {
     auto* var = create<ast::Variable>(decl->source, decl->name,
                                       ast::StorageClass::kNone, decl->type);
     var->set_is_const(true);
-    var->set_constructor(std::move(constructor.value));
+    var->set_constructor(constructor.value);
 
-    return create<ast::VariableDeclStatement>(decl->source, std::move(var));
+    return create<ast::VariableDeclStatement>(decl->source, var);
   }
 
   auto var = variable_decl();
@@ -1518,11 +1518,10 @@ Maybe<ast::VariableDeclStatement*> ParserImpl::variable_stmt() {
     if (!constructor.matched)
       return add_error(peek(), "missing constructor for variable declaration");
 
-    var->set_constructor(std::move(constructor.value));
+    var->set_constructor(constructor.value);
   }
 
-  return create<ast::VariableDeclStatement>(var->source(),
-                                            std::move(var.value));
+  return create<ast::VariableDeclStatement>(var->source(), var.value);
 }
 
 // if_stmt
@@ -1548,12 +1547,11 @@ Maybe<ast::IfStatement*> ParserImpl::if_stmt() {
   if (el.errored)
     return Failure::kErrored;
 
-  auto* stmt = create<ast::IfStatement>(source, std::move(condition.value),
-                                        std::move(body.value));
+  auto* stmt = create<ast::IfStatement>(source, condition.value, body.value);
   if (el.matched) {
-    elseif.value.push_back(std::move(el.value));
+    elseif.value.push_back(el.value);
   }
-  stmt->set_else_statements(std::move(elseif.value));
+  stmt->set_else_statements(elseif.value);
 
   return stmt;
 }
@@ -1575,8 +1573,8 @@ Maybe<ast::ElseStatementList> ParserImpl::elseif_stmt() {
     if (body.errored)
       return Failure::kErrored;
 
-    ret.push_back(create<ast::ElseStatement>(source, std::move(condition.value),
-                                             std::move(body.value)));
+    ret.push_back(
+        create<ast::ElseStatement>(source, condition.value, body.value));
 
     if (!match(Token::Type::kElseIf, &source))
       break;
@@ -1596,7 +1594,7 @@ Maybe<ast::ElseStatement*> ParserImpl::else_stmt() {
   if (body.errored)
     return Failure::kErrored;
 
-  return create<ast::ElseStatement>(source, std::move(body.value));
+  return create<ast::ElseStatement>(source, body.value);
 }
 
 // switch_stmt
@@ -1622,7 +1620,7 @@ Maybe<ast::SwitchStatement*> ParserImpl::switch_stmt() {
                                      }
                                      if (!stmt.matched)
                                        break;
-                                     list.push_back(std::move(stmt.value));
+                                     list.push_back(stmt.value);
                                    }
                                    if (errored)
                                      return Failure::kErrored;
@@ -1632,8 +1630,7 @@ Maybe<ast::SwitchStatement*> ParserImpl::switch_stmt() {
   if (body.errored)
     return Failure::kErrored;
 
-  return create<ast::SwitchStatement>(source, std::move(condition.value),
-                                      std::move(body.value));
+  return create<ast::SwitchStatement>(source, condition.value, body.value);
 }
 
 // switch_body
@@ -1669,7 +1666,7 @@ Maybe<ast::CaseStatement*> ParserImpl::switch_body() {
   if (!body.matched)
     return add_error(body.source, "expected case body");
 
-  stmt->set_body(std::move(body.value));
+  stmt->set_body(body.value);
 
   return stmt;
 }
@@ -1720,7 +1717,7 @@ Maybe<ast::BlockStatement*> ParserImpl::case_body() {
     if (!stmt.matched)
       break;
 
-    ret->append(std::move(stmt.value));
+    ret->append(stmt.value);
   }
 
   return ret;
@@ -1742,17 +1739,14 @@ Maybe<ast::LoopStatement*> ParserImpl::loop_stmt() {
     if (continuing.errored)
       return Failure::kErrored;
 
-    return create<ast::LoopStatement>(source, std::move(body.value),
-                                      std::move(continuing.value));
+    return create<ast::LoopStatement>(source, body.value, continuing.value);
   });
 }
 
 ForHeader::ForHeader(ast::Statement* init,
                      ast::Expression* cond,
                      ast::Statement* cont)
-    : initializer(std::move(init)),
-      condition(std::move(cond)),
-      continuing(std::move(cont)) {}
+    : initializer(init), condition(cond), continuing(cont) {}
 
 ForHeader::~ForHeader() = default;
 
@@ -1762,19 +1756,19 @@ Maybe<ast::Statement*> ParserImpl::for_header_initializer() {
   if (call.errored)
     return Failure::kErrored;
   if (call.matched)
-    return std::move(call.value);
+    return call.value;
 
   auto var = variable_stmt();
   if (var.errored)
     return Failure::kErrored;
   if (var.matched)
-    return std::move(var.value);
+    return var.value;
 
   auto assign = assignment_stmt();
   if (assign.errored)
     return Failure::kErrored;
   if (assign.matched)
-    return std::move(assign.value);
+    return assign.value;
 
   return Failure::kNoMatch;
 }
@@ -1785,13 +1779,13 @@ Maybe<ast::Statement*> ParserImpl::for_header_continuing() {
   if (call_stmt.errored)
     return Failure::kErrored;
   if (call_stmt.matched)
-    return std::move(call_stmt.value);
+    return call_stmt.value;
 
   auto assign = assignment_stmt();
   if (assign.errored)
     return Failure::kErrored;
   if (assign.matched)
-    return std::move(assign.value);
+    return assign.value;
 
   return Failure::kNoMatch;
 }
@@ -1820,9 +1814,8 @@ Expect<std::unique_ptr<ForHeader>> ParserImpl::expect_for_header() {
   if (continuing.errored)
     return Failure::kErrored;
 
-  return std::make_unique<ForHeader>(std::move(initializer.value),
-                                     std::move(condition.value),
-                                     std::move(continuing.value));
+  return std::make_unique<ForHeader>(initializer.value, condition.value,
+                                     continuing.value);
 }
 
 // for_statement
@@ -1848,32 +1841,29 @@ Maybe<ast::Statement*> ParserImpl::for_stmt() {
   if (header->condition != nullptr) {
     // !condition
     auto* not_condition = create<ast::UnaryOpExpression>(
-        header->condition->source(), ast::UnaryOp::kNot,
-        std::move(header->condition));
+        header->condition->source(), ast::UnaryOp::kNot, header->condition);
     // { break; }
     auto* break_stmt = create<ast::BreakStatement>(not_condition->source());
     auto* break_body = create<ast::BlockStatement>(not_condition->source());
-    break_body->append(std::move(break_stmt));
+    break_body->append(break_stmt);
     // if (!condition) { break; }
     auto* break_if_not_condition = create<ast::IfStatement>(
-        not_condition->source(), std::move(not_condition),
-        std::move(break_body));
-    body->insert(0, std::move(break_if_not_condition));
+        not_condition->source(), not_condition, break_body);
+    body->insert(0, break_if_not_condition);
   }
 
   ast::BlockStatement* continuing_body = nullptr;
   if (header->continuing != nullptr) {
     continuing_body = create<ast::BlockStatement>(header->continuing->source());
-    continuing_body->append(std::move(header->continuing));
+    continuing_body->append(header->continuing);
   }
 
-  auto* loop = create<ast::LoopStatement>(source, std::move(body.value),
-                                          std::move(continuing_body));
+  auto* loop = create<ast::LoopStatement>(source, body.value, continuing_body);
 
   if (header->initializer != nullptr) {
     auto* result = create<ast::BlockStatement>(source);
-    result->append(std::move(header->initializer));
-    result->append(std::move(loop));
+    result->append(header->initializer);
+    result->append(loop);
     return result;
   }
 
@@ -1955,15 +1945,14 @@ Maybe<ast::Expression*> ParserImpl::primary_expression() {
   if (lit.errored)
     return Failure::kErrored;
   if (lit.matched)
-    return create<ast::ScalarConstructorExpression>(source,
-                                                    std::move(lit.value));
+    return create<ast::ScalarConstructorExpression>(source, lit.value);
 
   if (t.IsParenLeft()) {
     auto paren = expect_paren_rhs_stmt();
     if (paren.errored)
       return Failure::kErrored;
 
-    return std::move(paren.value);
+    return paren.value;
   }
 
   if (match(Token::Type::kBitcast)) {
@@ -1977,8 +1966,7 @@ Maybe<ast::Expression*> ParserImpl::primary_expression() {
     if (params.errored)
       return Failure::kErrored;
 
-    return create<ast::BitcastExpression>(source, type.value,
-                                          std::move(params.value));
+    return create<ast::BitcastExpression>(source, type.value, params.value);
   }
 
   if (match(Token::Type::kIdentifier))
@@ -1999,14 +1987,14 @@ Maybe<ast::Expression*> ParserImpl::primary_expression() {
           if (params.errored)
             return Failure::kErrored;
 
-          return create<ast::TypeConstructorExpression>(
-              source, type.value, std::move(params.value));
+          return create<ast::TypeConstructorExpression>(source, type.value,
+                                                        params.value);
         });
 
     if (expr.errored)
       return Failure::kErrored;
 
-    return std::move(expr.value);
+    return expr.value;
   }
 
   return Failure::kNoMatch;
@@ -2029,8 +2017,8 @@ Maybe<ast::Expression*> ParserImpl::postfix_expr(ast::Expression* prefix) {
     if (!expect("array accessor", Token::Type::kBracketRight))
       return Failure::kErrored;
 
-    return postfix_expr(create<ast::ArrayAccessorExpression>(
-        source, std::move(prefix), std::move(param.value)));
+    return postfix_expr(
+        create<ast::ArrayAccessorExpression>(source, prefix, param.value));
   }
 
   if (match(Token::Type::kParenLeft, &source)) {
@@ -2041,14 +2029,13 @@ Maybe<ast::Expression*> ParserImpl::postfix_expr(ast::Expression* prefix) {
       auto list = expect_argument_expression_list();
       if (list.errored)
         return Failure::kErrored;
-      params = std::move(list.value);
+      params = list.value;
     }
 
     if (!expect("call expression", Token::Type::kParenRight))
       return Failure::kErrored;
 
-    return postfix_expr(create<ast::CallExpression>(source, std::move(prefix),
-                                                    std::move(params)));
+    return postfix_expr(create<ast::CallExpression>(source, prefix, params));
   }
 
   if (match(Token::Type::kPeriod)) {
@@ -2057,7 +2044,7 @@ Maybe<ast::Expression*> ParserImpl::postfix_expr(ast::Expression* prefix) {
       return Failure::kErrored;
 
     return postfix_expr(create<ast::MemberAccessorExpression>(
-        ident.source, std::move(prefix),
+        ident.source, prefix,
         create<ast::IdentifierExpression>(ident.source, ident.value)));
   }
 
@@ -2073,7 +2060,7 @@ Maybe<ast::Expression*> ParserImpl::postfix_expression() {
   if (!prefix.matched)
     return Failure::kNoMatch;
 
-  return postfix_expr(std::move(prefix.value));
+  return postfix_expr(prefix.value);
 }
 
 // argument_expression_list
@@ -2086,7 +2073,7 @@ Expect<ast::ExpressionList> ParserImpl::expect_argument_expression_list() {
     return add_error(peek(), "unable to parse argument expression");
 
   ast::ExpressionList ret;
-  ret.push_back(std::move(arg.value));
+  ret.push_back(arg.value);
 
   while (match(Token::Type::kComma)) {
     arg = logical_or_expression();
@@ -2096,7 +2083,7 @@ Expect<ast::ExpressionList> ParserImpl::expect_argument_expression_list() {
       return add_error(peek(),
                        "unable to parse argument expression after comma");
     }
-    ret.push_back(std::move(arg.value));
+    ret.push_back(arg.value);
   }
   return ret;
 }
@@ -2124,7 +2111,7 @@ Maybe<ast::Expression*> ParserImpl::unary_expression() {
       return add_error(peek(),
                        "unable to parse right side of " + name + " expression");
 
-    return create<ast::UnaryOpExpression>(source, op, std::move(expr.value));
+    return create<ast::UnaryOpExpression>(source, op, expr.value);
   }
   return postfix_expression();
 }
@@ -2160,8 +2147,8 @@ Expect<ast::Expression*> ParserImpl::expect_multiplicative_expr(
                      "unable to parse right side of " + name + " expression");
   }
 
-  return expect_multiplicative_expr(create<ast::BinaryExpression>(
-      source, op, std::move(lhs), std::move(rhs.value)));
+  return expect_multiplicative_expr(
+      create<ast::BinaryExpression>(source, op, lhs, rhs.value));
 }
 
 // multiplicative_expression
@@ -2173,7 +2160,7 @@ Maybe<ast::Expression*> ParserImpl::multiplicative_expression() {
   if (!lhs.matched)
     return Failure::kNoMatch;
 
-  return expect_multiplicative_expr(std::move(lhs.value));
+  return expect_multiplicative_expr(lhs.value);
 }
 
 // additive_expr
@@ -2201,8 +2188,8 @@ Expect<ast::Expression*> ParserImpl::expect_additive_expr(
   if (!rhs.matched)
     return add_error(peek(), "unable to parse right side of + expression");
 
-  return expect_additive_expr(create<ast::BinaryExpression>(
-      source, op, std::move(lhs), std::move(rhs.value)));
+  return expect_additive_expr(
+      create<ast::BinaryExpression>(source, op, lhs, rhs.value));
 }
 
 // additive_expression
@@ -2214,7 +2201,7 @@ Maybe<ast::Expression*> ParserImpl::additive_expression() {
   if (!lhs.matched)
     return Failure::kNoMatch;
 
-  return expect_additive_expr(std::move(lhs.value));
+  return expect_additive_expr(lhs.value);
 }
 
 // shift_expr
@@ -2249,8 +2236,8 @@ Expect<ast::Expression*> ParserImpl::expect_shift_expr(ast::Expression* lhs) {
     return add_error(peek(), std::string("unable to parse right side of ") +
                                  name + " expression");
   }
-  return expect_shift_expr(create<ast::BinaryExpression>(
-      source, op, std::move(lhs), std::move(rhs.value)));
+  return expect_shift_expr(
+      create<ast::BinaryExpression>(source, op, lhs, rhs.value));
 }  // namespace wgsl
 
 // shift_expression
@@ -2262,7 +2249,7 @@ Maybe<ast::Expression*> ParserImpl::shift_expression() {
   if (!lhs.matched)
     return Failure::kNoMatch;
 
-  return expect_shift_expr(std::move(lhs.value));
+  return expect_shift_expr(lhs.value);
 }
 
 // relational_expr
@@ -2298,8 +2285,8 @@ Expect<ast::Expression*> ParserImpl::expect_relational_expr(
                      "unable to parse right side of " + name + " expression");
   }
 
-  return expect_relational_expr(create<ast::BinaryExpression>(
-      source, op, std::move(lhs), std::move(rhs.value)));
+  return expect_relational_expr(
+      create<ast::BinaryExpression>(source, op, lhs, rhs.value));
 }
 
 // relational_expression
@@ -2311,7 +2298,7 @@ Maybe<ast::Expression*> ParserImpl::relational_expression() {
   if (!lhs.matched)
     return Failure::kNoMatch;
 
-  return expect_relational_expr(std::move(lhs.value));
+  return expect_relational_expr(lhs.value);
 }
 
 // equality_expr
@@ -2341,8 +2328,8 @@ Expect<ast::Expression*> ParserImpl::expect_equality_expr(
                      "unable to parse right side of " + name + " expression");
   }
 
-  return expect_equality_expr(create<ast::BinaryExpression>(
-      source, op, std::move(lhs), std::move(rhs.value)));
+  return expect_equality_expr(
+      create<ast::BinaryExpression>(source, op, lhs, rhs.value));
 }
 
 // equality_expression
@@ -2354,7 +2341,7 @@ Maybe<ast::Expression*> ParserImpl::equality_expression() {
   if (!lhs.matched)
     return Failure::kNoMatch;
 
-  return expect_equality_expr(std::move(lhs.value));
+  return expect_equality_expr(lhs.value);
 }
 
 // and_expr
@@ -2375,7 +2362,7 @@ Expect<ast::Expression*> ParserImpl::expect_and_expr(ast::Expression* lhs) {
     return add_error(peek(), "unable to parse right side of & expression");
 
   return expect_and_expr(create<ast::BinaryExpression>(
-      source, ast::BinaryOp::kAnd, std::move(lhs), std::move(rhs.value)));
+      source, ast::BinaryOp::kAnd, lhs, rhs.value));
 }
 
 // and_expression
@@ -2387,7 +2374,7 @@ Maybe<ast::Expression*> ParserImpl::and_expression() {
   if (!lhs.matched)
     return Failure::kNoMatch;
 
-  return expect_and_expr(std::move(lhs.value));
+  return expect_and_expr(lhs.value);
 }
 
 // exclusive_or_expr
@@ -2406,7 +2393,7 @@ Expect<ast::Expression*> ParserImpl::expect_exclusive_or_expr(
     return add_error(peek(), "unable to parse right side of ^ expression");
 
   return expect_exclusive_or_expr(create<ast::BinaryExpression>(
-      source, ast::BinaryOp::kXor, std::move(lhs), std::move(rhs.value)));
+      source, ast::BinaryOp::kXor, lhs, rhs.value));
 }
 
 // exclusive_or_expression
@@ -2418,7 +2405,7 @@ Maybe<ast::Expression*> ParserImpl::exclusive_or_expression() {
   if (!lhs.matched)
     return Failure::kNoMatch;
 
-  return expect_exclusive_or_expr(std::move(lhs.value));
+  return expect_exclusive_or_expr(lhs.value);
 }
 
 // inclusive_or_expr
@@ -2437,7 +2424,7 @@ Expect<ast::Expression*> ParserImpl::expect_inclusive_or_expr(
     return add_error(peek(), "unable to parse right side of | expression");
 
   return expect_inclusive_or_expr(create<ast::BinaryExpression>(
-      source, ast::BinaryOp::kOr, std::move(lhs), std::move(rhs.value)));
+      source, ast::BinaryOp::kOr, lhs, rhs.value));
 }
 
 // inclusive_or_expression
@@ -2449,7 +2436,7 @@ Maybe<ast::Expression*> ParserImpl::inclusive_or_expression() {
   if (!lhs.matched)
     return Failure::kNoMatch;
 
-  return expect_inclusive_or_expr(std::move(lhs.value));
+  return expect_inclusive_or_expr(lhs.value);
 }
 
 // logical_and_expr
@@ -2470,9 +2457,8 @@ Expect<ast::Expression*> ParserImpl::expect_logical_and_expr(
   if (!rhs.matched)
     return add_error(peek(), "unable to parse right side of && expression");
 
-  return expect_logical_and_expr(
-      create<ast::BinaryExpression>(source, ast::BinaryOp::kLogicalAnd,
-                                    std::move(lhs), std::move(rhs.value)));
+  return expect_logical_and_expr(create<ast::BinaryExpression>(
+      source, ast::BinaryOp::kLogicalAnd, lhs, rhs.value));
 }
 
 // logical_and_expression
@@ -2484,7 +2470,7 @@ Maybe<ast::Expression*> ParserImpl::logical_and_expression() {
   if (!lhs.matched)
     return Failure::kNoMatch;
 
-  return expect_logical_and_expr(std::move(lhs.value));
+  return expect_logical_and_expr(lhs.value);
 }
 
 // logical_or_expr
@@ -2503,7 +2489,7 @@ Expect<ast::Expression*> ParserImpl::expect_logical_or_expr(
     return add_error(peek(), "unable to parse right side of || expression");
 
   return expect_logical_or_expr(create<ast::BinaryExpression>(
-      source, ast::BinaryOp::kLogicalOr, std::move(lhs), std::move(rhs.value)));
+      source, ast::BinaryOp::kLogicalOr, lhs, rhs.value));
 }
 
 // logical_or_expression
@@ -2515,7 +2501,7 @@ Maybe<ast::Expression*> ParserImpl::logical_or_expression() {
   if (!lhs.matched)
     return Failure::kNoMatch;
 
-  return expect_logical_or_expr(std::move(lhs.value));
+  return expect_logical_or_expr(lhs.value);
 }
 
 // assignment_stmt
@@ -2539,8 +2525,7 @@ Maybe<ast::AssignmentStatement*> ParserImpl::assignment_stmt() {
   if (!rhs.matched)
     return add_error(peek(), "unable to parse right side of assignment");
 
-  return create<ast::AssignmentStatement>(source, std::move(lhs.value),
-                                          std::move(rhs.value));
+  return create<ast::AssignmentStatement>(source, lhs.value, rhs.value);
 }
 
 // const_literal
@@ -2601,12 +2586,12 @@ Expect<ast::ConstructorExpression*> ParserImpl::expect_const_expr_internal(
           auto param = expect_const_expr_internal(depth + 1);
           if (param.errored)
             return Failure::kErrored;
-          list.emplace_back(std::move(param.value));
+          list.emplace_back(param.value);
           while (match(Token::Type::kComma)) {
             param = expect_const_expr_internal(depth + 1);
             if (param.errored)
               return Failure::kErrored;
-            list.emplace_back(std::move(param.value));
+            list.emplace_back(param.value);
           }
           return list;
         });
@@ -2615,7 +2600,7 @@ Expect<ast::ConstructorExpression*> ParserImpl::expect_const_expr_internal(
       return Failure::kErrored;
 
     return create<ast::TypeConstructorExpression>(source, type.value,
-                                                  std::move(params.value));
+                                                  params.value);
   }
 
   auto lit = const_literal();
@@ -2624,7 +2609,7 @@ Expect<ast::ConstructorExpression*> ParserImpl::expect_const_expr_internal(
   if (!lit.matched)
     return add_error(peek(), "unable to parse const literal");
 
-  return create<ast::ScalarConstructorExpression>(source, std::move(lit.value));
+  return create<ast::ScalarConstructorExpression>(source, lit.value);
 }
 
 Maybe<ast::DecorationList> ParserImpl::decoration_list() {
@@ -2669,7 +2654,7 @@ Maybe<bool> ParserImpl::decoration_bracketed_list(ast::DecorationList& decos) {
       auto deco = expect_decoration();
       if (deco.errored)
         errored = true;
-      decos.emplace_back(std::move(deco.value));
+      decos.emplace_back(deco.value);
 
       if (match(Token::Type::kComma))
         continue;
@@ -2701,7 +2686,7 @@ Expect<ast::Decoration*> ParserImpl::expect_decoration() {
   if (deco.errored)
     return Failure::kErrored;
   if (deco.matched)
-    return std::move(deco.value);
+    return deco.value;
   return add_error(t, "expected decoration");
 }
 
@@ -2824,7 +2809,7 @@ Expect<std::vector<T*>> ParserImpl::cast_decorations(ast::DecorationList& in) {
       ok = false;
       continue;
     }
-    out.emplace_back(ast::As<T>(std::move(deco)));
+    out.emplace_back(ast::As<T>(deco));
   }
   // clear in so that we can verify decorations were consumed with
   // expect_decorations_consumed()
diff --git a/src/reader/wgsl/parser_impl_function_decoration_list_test.cc b/src/reader/wgsl/parser_impl_function_decoration_list_test.cc
index 46b4f36f64..53dad7f9d2 100644
--- a/src/reader/wgsl/parser_impl_function_decoration_list_test.cc
+++ b/src/reader/wgsl/parser_impl_function_decoration_list_test.cc
@@ -30,8 +30,8 @@ TEST_F(ParserImplTest, FunctionDecorationList_Parses) {
   EXPECT_TRUE(decos.matched);
   ASSERT_EQ(decos.value.size(), 2u);
 
-  auto* deco_0 = ast::As<ast::FunctionDecoration>(std::move(decos.value[0]));
-  auto* deco_1 = ast::As<ast::FunctionDecoration>(std::move(decos.value[1]));
+  auto* deco_0 = ast::As<ast::FunctionDecoration>(decos.value[0]);
+  auto* deco_1 = ast::As<ast::FunctionDecoration>(decos.value[1]);
   ASSERT_NE(deco_0, nullptr);
   ASSERT_NE(deco_1, nullptr);
 
diff --git a/src/reader/wgsl/parser_impl_function_decoration_test.cc b/src/reader/wgsl/parser_impl_function_decoration_test.cc
index 75991b2afc..583a5bb835 100644
--- a/src/reader/wgsl/parser_impl_function_decoration_test.cc
+++ b/src/reader/wgsl/parser_impl_function_decoration_test.cc
@@ -30,7 +30,7 @@ TEST_F(ParserImplTest, FunctionDecoration_Workgroup) {
   EXPECT_FALSE(deco.errored);
   ASSERT_NE(deco.value, nullptr) << p->error();
   ASSERT_FALSE(p->has_error());
-  auto* func_deco = ast::As<ast::FunctionDecoration>(std::move(deco.value));
+  auto* func_deco = ast::As<ast::FunctionDecoration>(deco.value);
   ASSERT_NE(func_deco, nullptr);
   ASSERT_TRUE(func_deco->IsWorkgroup());
 
@@ -50,7 +50,7 @@ TEST_F(ParserImplTest, FunctionDecoration_Workgroup_2Param) {
   EXPECT_FALSE(deco.errored);
   ASSERT_NE(deco.value, nullptr) << p->error();
   ASSERT_FALSE(p->has_error());
-  auto* func_deco = ast::As<ast::FunctionDecoration>(std::move(deco.value));
+  auto* func_deco = ast::As<ast::FunctionDecoration>(deco.value);
   ASSERT_NE(func_deco, nullptr) << p->error();
   ASSERT_TRUE(func_deco->IsWorkgroup());
 
@@ -70,7 +70,7 @@ TEST_F(ParserImplTest, FunctionDecoration_Workgroup_3Param) {
   EXPECT_FALSE(deco.errored);
   ASSERT_NE(deco.value, nullptr) << p->error();
   ASSERT_FALSE(p->has_error());
-  auto* func_deco = ast::As<ast::FunctionDecoration>(std::move(deco.value));
+  auto* func_deco = ast::As<ast::FunctionDecoration>(deco.value);
   ASSERT_NE(func_deco, nullptr);
   ASSERT_TRUE(func_deco->IsWorkgroup());
 
@@ -257,7 +257,7 @@ TEST_F(ParserImplTest, FunctionDecoration_Stage) {
   EXPECT_FALSE(deco.errored);
   ASSERT_NE(deco.value, nullptr) << p->error();
   ASSERT_FALSE(p->has_error());
-  auto* func_deco = ast::As<ast::FunctionDecoration>(std::move(deco.value));
+  auto* func_deco = ast::As<ast::FunctionDecoration>(deco.value);
   ASSERT_NE(func_deco, nullptr);
   ASSERT_TRUE(func_deco->IsStage());
   EXPECT_EQ(func_deco->AsStage()->value(), ast::PipelineStage::kCompute);
diff --git a/src/reader/wgsl/parser_impl_struct_decoration_decl_test.cc b/src/reader/wgsl/parser_impl_struct_decoration_decl_test.cc
index 8c8b988593..08358f29b5 100644
--- a/src/reader/wgsl/parser_impl_struct_decoration_decl_test.cc
+++ b/src/reader/wgsl/parser_impl_struct_decoration_decl_test.cc
@@ -28,7 +28,7 @@ TEST_F(ParserImplTest, StructDecorationDecl_Parses) {
   EXPECT_FALSE(decos.errored);
   EXPECT_TRUE(decos.matched);
   ASSERT_EQ(decos.value.size(), 1u);
-  auto* struct_deco = ast::As<ast::StructDecoration>(std::move(decos.value[0]));
+  auto* struct_deco = ast::As<ast::StructDecoration>(decos.value[0]);
   EXPECT_TRUE(struct_deco->IsBlock());
 }
 
diff --git a/src/reader/wgsl/parser_impl_struct_decoration_test.cc b/src/reader/wgsl/parser_impl_struct_decoration_test.cc
index ba37441ffa..b18f486914 100644
--- a/src/reader/wgsl/parser_impl_struct_decoration_test.cc
+++ b/src/reader/wgsl/parser_impl_struct_decoration_test.cc
@@ -43,7 +43,7 @@ TEST_P(StructDecorationTest, Parses) {
   EXPECT_TRUE(deco.matched);
   EXPECT_FALSE(deco.errored);
   ASSERT_NE(deco.value, nullptr);
-  auto* struct_deco = ast::As<ast::StructDecoration>(std::move(deco.value));
+  auto* struct_deco = ast::As<ast::StructDecoration>(deco.value);
   ASSERT_NE(struct_deco, nullptr);
   EXPECT_EQ(struct_deco->IsBlock(), params.is_block);
 }
diff --git a/src/reader/wgsl/parser_impl_struct_member_decoration_decl_test.cc b/src/reader/wgsl/parser_impl_struct_member_decoration_decl_test.cc
index 2e696d3e44..0ef8b44a6d 100644
--- a/src/reader/wgsl/parser_impl_struct_member_decoration_decl_test.cc
+++ b/src/reader/wgsl/parser_impl_struct_member_decoration_decl_test.cc
@@ -48,7 +48,7 @@ TEST_F(ParserImplTest, StructMemberDecorationDecl_Single) {
   EXPECT_FALSE(decos.errored);
   EXPECT_TRUE(decos.matched);
   ASSERT_EQ(decos.value.size(), 1u);
-  auto* deco = ast::As<ast::StructMemberDecoration>(std::move(decos.value[0]));
+  auto* deco = ast::As<ast::StructMemberDecoration>(decos.value[0]);
   ASSERT_NE(deco, nullptr);
   EXPECT_TRUE(deco->IsOffset());
 }
diff --git a/src/reader/wgsl/parser_impl_struct_member_decoration_test.cc b/src/reader/wgsl/parser_impl_struct_member_decoration_test.cc
index adb21db8f4..963d32a9e7 100644
--- a/src/reader/wgsl/parser_impl_struct_member_decoration_test.cc
+++ b/src/reader/wgsl/parser_impl_struct_member_decoration_test.cc
@@ -30,8 +30,7 @@ TEST_F(ParserImplTest, StructMemberDecoration_Offset) {
   ASSERT_NE(deco.value, nullptr);
   ASSERT_FALSE(p->has_error());
 
-  auto* member_deco =
-      ast::As<ast::StructMemberDecoration>(std::move(deco.value));
+  auto* member_deco = ast::As<ast::StructMemberDecoration>(deco.value);
   ASSERT_NE(member_deco, nullptr);
   ASSERT_TRUE(member_deco->IsOffset());
 
diff --git a/src/reader/wgsl/parser_impl_variable_decoration_list_test.cc b/src/reader/wgsl/parser_impl_variable_decoration_list_test.cc
index 9f53688f20..60d9a49dcc 100644
--- a/src/reader/wgsl/parser_impl_variable_decoration_list_test.cc
+++ b/src/reader/wgsl/parser_impl_variable_decoration_list_test.cc
@@ -31,8 +31,8 @@ TEST_F(ParserImplTest, VariableDecorationList_Parses) {
   ASSERT_TRUE(decos.matched);
   ASSERT_EQ(decos.value.size(), 2u);
 
-  auto* deco_0 = ast::As<ast::VariableDecoration>(std::move(decos.value[0]));
-  auto* deco_1 = ast::As<ast::VariableDecoration>(std::move(decos.value[1]));
+  auto* deco_0 = ast::As<ast::VariableDecoration>(decos.value[0]);
+  auto* deco_1 = ast::As<ast::VariableDecoration>(decos.value[1]);
   ASSERT_NE(deco_0, nullptr);
   ASSERT_NE(deco_1, nullptr);
 
diff --git a/src/reader/wgsl/parser_impl_variable_decoration_test.cc b/src/reader/wgsl/parser_impl_variable_decoration_test.cc
index 6ac7ac3d08..e992a61618 100644
--- a/src/reader/wgsl/parser_impl_variable_decoration_test.cc
+++ b/src/reader/wgsl/parser_impl_variable_decoration_test.cc
@@ -31,7 +31,7 @@ TEST_F(ParserImplTest, VariableDecoration_Location) {
   EXPECT_TRUE(deco.matched);
   EXPECT_FALSE(deco.errored);
   ASSERT_NE(deco.value, nullptr);
-  auto* var_deco = ast::As<ast::VariableDecoration>(std::move(deco.value));
+  auto* var_deco = ast::As<ast::VariableDecoration>(deco.value);
   ASSERT_NE(var_deco, nullptr);
   ASSERT_FALSE(p->has_error());
   ASSERT_TRUE(var_deco->IsLocation());
@@ -101,7 +101,7 @@ TEST_P(BuiltinTest, VariableDecoration_Builtin) {
   EXPECT_TRUE(deco.matched);
   EXPECT_FALSE(deco.errored);
   ASSERT_NE(deco.value, nullptr);
-  auto* var_deco = ast::As<ast::VariableDecoration>(std::move(deco.value));
+  auto* var_deco = ast::As<ast::VariableDecoration>(deco.value);
   ASSERT_FALSE(p->has_error()) << p->error();
   ASSERT_NE(var_deco, nullptr);
   ASSERT_TRUE(var_deco->IsBuiltin());
@@ -180,7 +180,7 @@ TEST_F(ParserImplTest, VariableDecoration_Binding) {
   EXPECT_TRUE(deco.matched);
   EXPECT_FALSE(deco.errored);
   ASSERT_NE(deco.value, nullptr);
-  auto* var_deco = ast::As<ast::VariableDecoration>(std::move(deco.value));
+  auto* var_deco = ast::As<ast::VariableDecoration>(deco.value);
   ASSERT_NE(var_deco, nullptr);
   ASSERT_FALSE(p->has_error());
   ASSERT_TRUE(var_deco->IsBinding());
@@ -237,7 +237,7 @@ TEST_F(ParserImplTest, VariableDecoration_set) {
   EXPECT_TRUE(deco.matched);
   EXPECT_FALSE(deco.errored);
   ASSERT_NE(deco.value, nullptr);
-  auto* var_deco = ast::As<ast::VariableDecoration>(std::move(deco.value));
+  auto* var_deco = ast::As<ast::VariableDecoration>(deco.value);
   ASSERT_FALSE(p->has_error());
   ASSERT_NE(var_deco, nullptr);
   ASSERT_TRUE(var_deco->IsSet());
diff --git a/src/transform/bound_array_accessors_transform.cc b/src/transform/bound_array_accessors_transform.cc
index cbc4bac8f2..4aebfebb32 100644
--- a/src/transform/bound_array_accessors_transform.cc
+++ b/src/transform/bound_array_accessors_transform.cc
@@ -244,8 +244,7 @@ bool BoundArrayAccessorsTransform::ProcessAccessExpression(
     cast_expr.push_back(expr->idx_expr());
 
     ast::ExpressionList params;
-    params.push_back(
-        create<ast::TypeConstructorExpression>(u32, std::move(cast_expr)));
+    params.push_back(create<ast::TypeConstructorExpression>(u32, cast_expr));
     params.push_back(create<ast::ScalarConstructorExpression>(
         create<ast::UintLiteral>(u32, size - 1)));
 
@@ -253,7 +252,7 @@ bool BoundArrayAccessorsTransform::ProcessAccessExpression(
         create<ast::IdentifierExpression>("min"), std::move(params));
     call_expr->set_result_type(u32);
 
-    expr->set_idx_expr(std::move(call_expr));
+    expr->set_idx_expr(call_expr);
   }
   return true;
 }
diff --git a/src/transform/bound_array_accessors_transform_test.cc b/src/transform/bound_array_accessors_transform_test.cc
index d0613b7438..aa994ae4d5 100644
--- a/src/transform/bound_array_accessors_transform_test.cc
+++ b/src/transform/bound_array_accessors_transform_test.cc
@@ -54,15 +54,15 @@ class BoundArrayAccessorsTest : public testing::Test {
   ast::BlockStatement* SetupFunctionAndBody() {
     auto* block = create<ast::BlockStatement>();
     body_ = block;
-    auto* func = create<ast::Function>("func", ast::VariableList{}, &void_type_,
-                                      std::move(block));
-    mod_.AddFunction(std::move(func));
+    auto* func =
+        create<ast::Function>("func", ast::VariableList{}, &void_type_, block);
+    mod_.AddFunction(func);
     return body_;
   }
 
   void DeclareVariable(ast::Variable* var) {
     ASSERT_NE(body_, nullptr);
-    body_->append(create<ast::VariableDeclStatement>(std::move(var)));
+    body_->append(create<ast::VariableDeclStatement>(var));
   }
 
   TypeDeterminer* td() { return &td_; }
@@ -105,19 +105,18 @@ TEST_F(BoundArrayAccessorsTest, Ptrs_Clamp) {
 
   auto* c_var = create<ast::Variable>("c", ast::StorageClass::kFunction, &u32);
   c_var->set_is_const(true);
-  DeclareVariable(std::move(c_var));
+  DeclareVariable(c_var);
 
   auto* access_idx = create<ast::IdentifierExpression>("c");
-  auto* access_ptr = access_idx;
 
   auto* accessor = create<ast::ArrayAccessorExpression>(
-      create<ast::IdentifierExpression>("a"), std::move(access_idx));
+      create<ast::IdentifierExpression>("a"), access_idx);
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("b", ast::StorageClass::kFunction, &ptr_type);
-  b->set_constructor(std::move(accessor));
+  b->set_constructor(accessor);
   b->set_is_const(true);
-  DeclareVariable(std::move(b));
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -136,7 +135,7 @@ TEST_F(BoundArrayAccessorsTest, Ptrs_Clamp) {
   auto* tc = idx->params()[0]->AsConstructor()->AsTypeConstructor();
   EXPECT_TRUE(tc->type()->IsU32());
   ASSERT_EQ(tc->values().size(), 1u);
-  ASSERT_EQ(tc->values()[0], access_ptr);
+  ASSERT_EQ(tc->values()[0], access_idx);
 
   ASSERT_TRUE(idx->params()[1]->IsConstructor());
   ASSERT_TRUE(idx->params()[1]->AsConstructor()->IsScalarConstructor());
@@ -170,18 +169,17 @@ TEST_F(BoundArrayAccessorsTest, Array_Idx_Nested_Scalar) {
       create<ast::Variable>("i", ast::StorageClass::kFunction, &u32));
 
   auto* b_access_idx = create<ast::IdentifierExpression>("i");
-  auto* b_access_ptr = b_access_idx;
 
   auto* a_access_idx = create<ast::ArrayAccessorExpression>(
-      create<ast::IdentifierExpression>("b"), std::move(b_access_idx));
+      create<ast::IdentifierExpression>("b"), b_access_idx);
 
   auto* accessor = create<ast::ArrayAccessorExpression>(
-      create<ast::IdentifierExpression>("a"), std::move(a_access_idx));
+      create<ast::IdentifierExpression>("a"), a_access_idx);
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("c", ast::StorageClass::kFunction, &f32);
-  b->set_constructor(std::move(accessor));
-  DeclareVariable(std::move(b));
+  b->set_constructor(accessor);
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -214,7 +212,7 @@ TEST_F(BoundArrayAccessorsTest, Array_Idx_Nested_Scalar) {
   tc = sub_idx->params()[0]->AsConstructor()->AsTypeConstructor();
   EXPECT_TRUE(tc->type()->IsU32());
   ASSERT_EQ(tc->values().size(), 1u);
-  ASSERT_EQ(tc->values()[0], b_access_ptr);
+  ASSERT_EQ(tc->values()[0], b_access_idx);
 
   ASSERT_TRUE(sub_idx->params()[1]->IsConstructor());
   ASSERT_TRUE(sub_idx->params()[1]->AsConstructor()->IsScalarConstructor());
@@ -253,8 +251,8 @@ TEST_F(BoundArrayAccessorsTest, Array_Idx_Scalar) {
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("b", ast::StorageClass::kFunction, &f32);
-  b->set_constructor(std::move(accessor));
-  DeclareVariable(std::move(b));
+  b->set_constructor(accessor);
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -295,15 +293,14 @@ TEST_F(BoundArrayAccessorsTest, Array_Idx_Expr) {
                                         create<ast::UintLiteral>(&u32, 2)),
                                     create<ast::ScalarConstructorExpression>(
                                         create<ast::UintLiteral>(&u32, 3))));
-  auto* access_ptr = access_idx;
 
   auto* accessor = create<ast::ArrayAccessorExpression>(
-      create<ast::IdentifierExpression>("a"), std::move(access_idx));
+      create<ast::IdentifierExpression>("a"), access_idx);
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("b", ast::StorageClass::kFunction, &f32);
-  b->set_constructor(std::move(accessor));
-  DeclareVariable(std::move(b));
+  b->set_constructor(accessor);
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -322,7 +319,7 @@ TEST_F(BoundArrayAccessorsTest, Array_Idx_Expr) {
   auto* tc = idx->params()[0]->AsConstructor()->AsTypeConstructor();
   EXPECT_TRUE(tc->type()->IsU32());
   ASSERT_EQ(tc->values().size(), 1u);
-  ASSERT_EQ(tc->values()[0], access_ptr);
+  ASSERT_EQ(tc->values()[0], access_idx);
 
   ASSERT_TRUE(idx->params()[1]->IsConstructor());
   ASSERT_TRUE(idx->params()[1]->AsConstructor()->IsScalarConstructor());
@@ -355,8 +352,8 @@ TEST_F(BoundArrayAccessorsTest, Array_Idx_Negative) {
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("b", ast::StorageClass::kFunction, &f32);
-  b->set_constructor(std::move(accessor));
-  DeclareVariable(std::move(b));
+  b->set_constructor(accessor);
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -394,8 +391,8 @@ TEST_F(BoundArrayAccessorsTest, Array_Idx_OutOfBounds) {
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("b", ast::StorageClass::kFunction, &f32);
-  b->set_constructor(std::move(accessor));
-  DeclareVariable(std::move(b));
+  b->set_constructor(accessor);
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -433,8 +430,8 @@ TEST_F(BoundArrayAccessorsTest, Vector_Idx_Scalar) {
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("b", ast::StorageClass::kFunction, &f32);
-  b->set_constructor(std::move(accessor));
-  DeclareVariable(std::move(b));
+  b->set_constructor(accessor);
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -475,15 +472,14 @@ TEST_F(BoundArrayAccessorsTest, Vector_Idx_Expr) {
                                         create<ast::UintLiteral>(&u32, 2)),
                                     create<ast::ScalarConstructorExpression>(
                                         create<ast::UintLiteral>(&u32, 3))));
-  auto* access_ptr = access_idx;
 
   auto* accessor = create<ast::ArrayAccessorExpression>(
-      create<ast::IdentifierExpression>("a"), std::move(access_idx));
+      create<ast::IdentifierExpression>("a"), access_idx);
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("b", ast::StorageClass::kFunction, &f32);
-  b->set_constructor(std::move(accessor));
-  DeclareVariable(std::move(b));
+  b->set_constructor(accessor);
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -501,7 +497,7 @@ TEST_F(BoundArrayAccessorsTest, Vector_Idx_Expr) {
   auto* tc = idx->params()[0]->AsConstructor()->AsTypeConstructor();
   EXPECT_TRUE(tc->type()->IsU32());
   ASSERT_EQ(tc->values().size(), 1u);
-  ASSERT_EQ(tc->values()[0], access_ptr);
+  ASSERT_EQ(tc->values()[0], access_idx);
 
   ASSERT_TRUE(idx->params()[1]->IsConstructor());
   ASSERT_TRUE(idx->params()[1]->AsConstructor()->IsScalarConstructor());
@@ -534,8 +530,8 @@ TEST_F(BoundArrayAccessorsTest, Vector_Idx_Negative) {
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("b", ast::StorageClass::kFunction, &f32);
-  b->set_constructor(std::move(accessor));
-  DeclareVariable(std::move(b));
+  b->set_constructor(accessor);
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -573,8 +569,8 @@ TEST_F(BoundArrayAccessorsTest, Vector_Idx_OutOfBounds) {
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("b", ast::StorageClass::kFunction, &f32);
-  b->set_constructor(std::move(accessor));
-  DeclareVariable(std::move(b));
+  b->set_constructor(accessor);
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -615,8 +611,8 @@ TEST_F(BoundArrayAccessorsTest, Matrix_Idx_Scalar) {
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("b", ast::StorageClass::kFunction, &f32);
-  b->set_constructor(std::move(accessor));
-  DeclareVariable(std::move(b));
+  b->set_constructor(accessor);
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -670,18 +666,17 @@ TEST_F(BoundArrayAccessorsTest, Matrix_Idx_Expr_Column) {
                                         create<ast::UintLiteral>(&u32, 2)),
                                     create<ast::ScalarConstructorExpression>(
                                         create<ast::UintLiteral>(&u32, 3))));
-  auto* access_ptr = access_idx;
 
   auto* accessor = create<ast::ArrayAccessorExpression>(
       create<ast::ArrayAccessorExpression>(
-          create<ast::IdentifierExpression>("a"), std::move(access_idx)),
+          create<ast::IdentifierExpression>("a"), access_idx),
       create<ast::ScalarConstructorExpression>(
           create<ast::UintLiteral>(&u32, 1u)));
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("b", ast::StorageClass::kFunction, &f32);
-  b->set_constructor(std::move(accessor));
-  DeclareVariable(std::move(b));
+  b->set_constructor(accessor);
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -703,7 +698,7 @@ TEST_F(BoundArrayAccessorsTest, Matrix_Idx_Expr_Column) {
   auto* tc = idx->params()[0]->AsConstructor()->AsTypeConstructor();
   EXPECT_TRUE(tc->type()->IsU32());
   ASSERT_EQ(tc->values().size(), 1u);
-  ASSERT_EQ(tc->values()[0], access_ptr);
+  ASSERT_EQ(tc->values()[0], access_idx);
 
   ASSERT_TRUE(idx->params()[1]->IsConstructor());
   ASSERT_TRUE(idx->params()[1]->AsConstructor()->IsScalarConstructor());
@@ -749,19 +744,18 @@ TEST_F(BoundArrayAccessorsTest, Matrix_Idx_Expr_Row) {
                                         create<ast::UintLiteral>(&u32, 2)),
                                     create<ast::ScalarConstructorExpression>(
                                         create<ast::UintLiteral>(&u32, 3))));
-  auto* access_ptr = access_idx;
 
   auto* accessor = create<ast::ArrayAccessorExpression>(
       create<ast::ArrayAccessorExpression>(
           create<ast::IdentifierExpression>("a"),
           create<ast::ScalarConstructorExpression>(
               create<ast::UintLiteral>(&u32, 1u))),
-      std::move(access_idx));
+      access_idx);
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("b", ast::StorageClass::kFunction, &f32);
-  b->set_constructor(std::move(accessor));
-  DeclareVariable(std::move(b));
+  b->set_constructor(accessor);
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -790,7 +784,7 @@ TEST_F(BoundArrayAccessorsTest, Matrix_Idx_Expr_Row) {
   auto* tc = idx->params()[0]->AsConstructor()->AsTypeConstructor();
   EXPECT_TRUE(tc->type()->IsU32());
   ASSERT_EQ(tc->values().size(), 1u);
-  ASSERT_EQ(tc->values()[0], access_ptr);
+  ASSERT_EQ(tc->values()[0], access_idx);
 
   ASSERT_TRUE(idx->params()[1]->IsConstructor());
   ASSERT_TRUE(idx->params()[1]->AsConstructor()->IsScalarConstructor());
@@ -828,8 +822,8 @@ TEST_F(BoundArrayAccessorsTest, Matrix_Idx_Negative_Column) {
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("b", ast::StorageClass::kFunction, &f32);
-  b->set_constructor(std::move(accessor));
-  DeclareVariable(std::move(b));
+  b->set_constructor(accessor);
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -882,8 +876,8 @@ TEST_F(BoundArrayAccessorsTest, Matrix_Idx_Negative_Row) {
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("b", ast::StorageClass::kFunction, &f32);
-  b->set_constructor(std::move(accessor));
-  DeclareVariable(std::move(b));
+  b->set_constructor(accessor);
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -937,8 +931,8 @@ TEST_F(BoundArrayAccessorsTest, Matrix_Idx_OutOfBounds_Column) {
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("b", ast::StorageClass::kFunction, &f32);
-  b->set_constructor(std::move(accessor));
-  DeclareVariable(std::move(b));
+  b->set_constructor(accessor);
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
@@ -992,8 +986,8 @@ TEST_F(BoundArrayAccessorsTest, Matrix_Idx_OutOfBounds_Row) {
   auto* ptr = accessor;
 
   auto* b = create<ast::Variable>("b", ast::StorageClass::kFunction, &f32);
-  b->set_constructor(std::move(accessor));
-  DeclareVariable(std::move(b));
+  b->set_constructor(accessor);
+  DeclareVariable(b);
 
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
diff --git a/src/transform/vertex_pulling_transform.cc b/src/transform/vertex_pulling_transform.cc
index f057ada1a4..7707194f65 100644
--- a/src/transform/vertex_pulling_transform.cc
+++ b/src/transform/vertex_pulling_transform.cc
@@ -151,7 +151,7 @@ void VertexPullingTransform::FindOrInsertVertexIndexIfUsed() {
       create<ast::BuiltinDecoration>(ast::Builtin::kVertexIdx, Source{}));
 
   var->set_decorations(std::move(decorations));
-  mod_->AddGlobalVariable(std::move(var));
+  mod_->AddGlobalVariable(var);
 }
 
 void VertexPullingTransform::FindOrInsertInstanceIndexIfUsed() {
@@ -193,7 +193,7 @@ void VertexPullingTransform::FindOrInsertInstanceIndexIfUsed() {
       create<ast::BuiltinDecoration>(ast::Builtin::kInstanceIdx, Source{}));
 
   var->set_decorations(std::move(decorations));
-  mod_->AddGlobalVariable(std::move(var));
+  mod_->AddGlobalVariable(var);
 }
 
 void VertexPullingTransform::ConvertVertexInputVariablesToPrivate() {
@@ -257,7 +257,7 @@ void VertexPullingTransform::AddVertexStorageBuffers() {
     decorations.push_back(create<ast::SetDecoration>(pulling_set_, Source{}));
     var->set_decorations(std::move(decorations));
 
-    mod_->AddGlobalVariable(std::move(var));
+    mod_->AddGlobalVariable(var);
   }
   mod_->AddConstructedType(struct_type);
 }
@@ -278,7 +278,7 @@ void VertexPullingTransform::AddVertexPullingPreamble(
   // |kPullingPosVarName| refers to the byte location of the current read. We
   // declare a variable in the shader to avoid having to reuse Expression
   // objects.
-  block->append(std::move(pos_declaration));
+  block->append(pos_declaration);
 
   for (uint32_t i = 0; i < vertex_state_->vertex_buffers.size(); ++i) {
     const VertexBufferLayoutDescriptor& buffer_layout =
@@ -302,14 +302,14 @@ void VertexPullingTransform::AddVertexPullingPreamble(
       auto* pos_value = create<ast::BinaryExpression>(
           ast::BinaryOp::kAdd,
           create<ast::BinaryExpression>(
-              ast::BinaryOp::kMultiply, std::move(index_identifier),
+              ast::BinaryOp::kMultiply, index_identifier,
               GenUint(static_cast<uint32_t>(buffer_layout.array_stride))),
           GenUint(static_cast<uint32_t>(attribute_desc.offset)));
 
       // Update position of the read
       auto* set_pos_expr = create<ast::AssignmentStatement>(
-          CreatePullingPositionIdent(), std::move(pos_value));
-      block->append(std::move(set_pos_expr));
+          CreatePullingPositionIdent(), pos_value);
+      block->append(set_pos_expr);
 
       block->append(create<ast::AssignmentStatement>(
           create<ast::IdentifierExpression>(v->name()),
@@ -317,7 +317,7 @@ void VertexPullingTransform::AddVertexPullingPreamble(
     }
   }
 
-  vertex_func->body()->insert(0, std::move(block));
+  vertex_func->body()->insert(0, block);
 }
 
 ast::Expression* VertexPullingTransform::GenUint(uint32_t value) {
@@ -367,22 +367,19 @@ ast::Expression* VertexPullingTransform::AccessU32(uint32_t buffer,
       create<ast::MemberAccessorExpression>(
           create<ast::IdentifierExpression>(GetVertexBufferName(buffer)),
           create<ast::IdentifierExpression>(kStructBufferName)),
-      create<ast::BinaryExpression>(ast::BinaryOp::kDivide, std::move(pos),
-                                    GenUint(4)));
+      create<ast::BinaryExpression>(ast::BinaryOp::kDivide, pos, GenUint(4)));
 }
 
 ast::Expression* VertexPullingTransform::AccessI32(uint32_t buffer,
                                                    ast::Expression* pos) {
   // as<T> reinterprets bits
-  return create<ast::BitcastExpression>(GetI32Type(),
-                                        AccessU32(buffer, std::move(pos)));
+  return create<ast::BitcastExpression>(GetI32Type(), AccessU32(buffer, pos));
 }
 
 ast::Expression* VertexPullingTransform::AccessF32(uint32_t buffer,
                                                    ast::Expression* pos) {
   // as<T> reinterprets bits
-  return create<ast::BitcastExpression>(GetF32Type(),
-                                        AccessU32(buffer, std::move(pos)));
+  return create<ast::BitcastExpression>(GetF32Type(), AccessU32(buffer, pos));
 }
 
 ast::Expression* VertexPullingTransform::AccessPrimitive(uint32_t buffer,
@@ -394,11 +391,11 @@ ast::Expression* VertexPullingTransform::AccessPrimitive(uint32_t buffer,
   // from the position variable.
   switch (format) {
     case VertexFormat::kU32:
-      return AccessU32(buffer, std::move(pos));
+      return AccessU32(buffer, pos);
     case VertexFormat::kI32:
-      return AccessI32(buffer, std::move(pos));
+      return AccessI32(buffer, pos);
     case VertexFormat::kF32:
-      return AccessF32(buffer, std::move(pos));
+      return AccessF32(buffer, pos);
     default:
       return nullptr;
   }
@@ -415,8 +412,7 @@ ast::Expression* VertexPullingTransform::AccessVec(uint32_t buffer,
     auto* cur_pos = create<ast::BinaryExpression>(ast::BinaryOp::kAdd,
                                                   CreatePullingPositionIdent(),
                                                   GenUint(element_stride * i));
-    expr_list.push_back(
-        AccessPrimitive(buffer, std::move(cur_pos), base_format));
+    expr_list.push_back(AccessPrimitive(buffer, cur_pos, base_format));
   }
 
   return create<ast::TypeConstructorExpression>(
@@ -443,8 +439,8 @@ VertexBufferLayoutDescriptor::VertexBufferLayoutDescriptor(
     uint64_t in_array_stride,
     InputStepMode in_step_mode,
     std::vector<VertexAttributeDescriptor> in_attributes)
-    : array_stride(std::move(in_array_stride)),
-      step_mode(std::move(in_step_mode)),
+    : array_stride(in_array_stride),
+      step_mode(in_step_mode),
       attributes(std::move(in_attributes)) {}
 
 VertexBufferLayoutDescriptor::VertexBufferLayoutDescriptor(
diff --git a/src/transform/vertex_pulling_transform_test.cc b/src/transform/vertex_pulling_transform_test.cc
index 8f9b3b6ae9..f8af1329ec 100644
--- a/src/transform/vertex_pulling_transform_test.cc
+++ b/src/transform/vertex_pulling_transform_test.cc
@@ -47,7 +47,7 @@ class VertexPullingTransformHelper {
         create<ast::BlockStatement>());
     func->add_decoration(
         create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-    mod()->AddFunction(std::move(func));
+    mod()->AddFunction(func);
   }
 
   // Set up the transformation, after building the module
@@ -58,7 +58,7 @@ class VertexPullingTransformHelper {
     EXPECT_TRUE(td.Determine());
 
     transform_->SetVertexState(
-        std::make_unique<VertexStateDescriptor>(std::move(vertex_state)));
+        std::make_unique<VertexStateDescriptor>(vertex_state));
     transform_->SetEntryPoint("main");
   }
 
@@ -72,8 +72,8 @@ class VertexPullingTransformHelper {
     ast::VariableDecorationList decorations;
     decorations.push_back(create<ast::LocationDecoration>(location, Source{}));
 
-    var->set_decorations(std::move(decorations));
-    mod_->AddGlobalVariable(std::move(var));
+    var->set_decorations(decorations);
+    mod_->AddGlobalVariable(var);
   }
 
   Context* ctx() { return &ctx_; }
@@ -125,7 +125,7 @@ TEST_F(VertexPullingTransformTest, Error_EntryPointWrongStage) {
       create<ast::BlockStatement>());
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   InitTransform({});
   EXPECT_FALSE(transform()->Run());
@@ -410,8 +410,8 @@ TEST_F(VertexPullingTransformTest, ExistingVertexIndexAndInstanceIndex) {
     decorations.push_back(
         create<ast::BuiltinDecoration>(ast::Builtin::kVertexIdx, Source{}));
 
-    vertex_index_var->set_decorations(std::move(decorations));
-    mod()->AddGlobalVariable(std::move(vertex_index_var));
+    vertex_index_var->set_decorations(decorations);
+    mod()->AddGlobalVariable(vertex_index_var);
   }
 
   {
@@ -423,8 +423,8 @@ TEST_F(VertexPullingTransformTest, ExistingVertexIndexAndInstanceIndex) {
     decorations.push_back(
         create<ast::BuiltinDecoration>(ast::Builtin::kInstanceIdx, Source{}));
 
-    instance_index_var->set_decorations(std::move(decorations));
-    mod()->AddGlobalVariable(std::move(instance_index_var));
+    instance_index_var->set_decorations(decorations);
+    mod()->AddGlobalVariable(instance_index_var);
   }
 
   InitTransform(
diff --git a/src/type_determiner_test.cc b/src/type_determiner_test.cc
index ec0535e87c..7a251518f8 100644
--- a/src/type_determiner_test.cc
+++ b/src/type_determiner_test.cc
@@ -133,20 +133,17 @@ TEST_F(TypeDeterminerTest, Stmt_Assign) {
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
-  auto* lhs_ptr = lhs;
-
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.3f));
-  auto* rhs_ptr = rhs;
 
-  ast::AssignmentStatement assign(std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement assign(lhs, rhs);
 
   EXPECT_TRUE(td()->DetermineResultType(&assign));
-  ASSERT_NE(lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(rhs_ptr->result_type(), nullptr);
+  ASSERT_NE(lhs->result_type(), nullptr);
+  ASSERT_NE(rhs->result_type(), nullptr);
 
-  EXPECT_TRUE(lhs_ptr->result_type()->IsI32());
-  EXPECT_TRUE(rhs_ptr->result_type()->IsF32());
+  EXPECT_TRUE(lhs->result_type()->IsI32());
+  EXPECT_TRUE(rhs->result_type()->IsF32());
 }
 
 TEST_F(TypeDeterminerTest, Stmt_Case) {
@@ -155,25 +152,21 @@ TEST_F(TypeDeterminerTest, Stmt_Case) {
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
-  auto* lhs_ptr = lhs;
-
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.3f));
-  auto* rhs_ptr = rhs;
 
   auto* body = create<ast::BlockStatement>();
-  body->append(
-      create<ast::AssignmentStatement>(std::move(lhs), std::move(rhs)));
+  body->append(create<ast::AssignmentStatement>(lhs, rhs));
 
   ast::CaseSelectorList lit;
   lit.push_back(create<ast::SintLiteral>(&i32, 3));
-  ast::CaseStatement cse(std::move(lit), std::move(body));
+  ast::CaseStatement cse(lit, body);
 
   EXPECT_TRUE(td()->DetermineResultType(&cse));
-  ASSERT_NE(lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(rhs_ptr->result_type(), nullptr);
-  EXPECT_TRUE(lhs_ptr->result_type()->IsI32());
-  EXPECT_TRUE(rhs_ptr->result_type()->IsF32());
+  ASSERT_NE(lhs->result_type(), nullptr);
+  ASSERT_NE(rhs->result_type(), nullptr);
+  EXPECT_TRUE(lhs->result_type()->IsI32());
+  EXPECT_TRUE(rhs->result_type()->IsF32());
 }
 
 TEST_F(TypeDeterminerTest, Stmt_Block) {
@@ -182,21 +175,17 @@ TEST_F(TypeDeterminerTest, Stmt_Block) {
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
-  auto* lhs_ptr = lhs;
-
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.3f));
-  auto* rhs_ptr = rhs;
 
   ast::BlockStatement block;
-  block.append(
-      create<ast::AssignmentStatement>(std::move(lhs), std::move(rhs)));
+  block.append(create<ast::AssignmentStatement>(lhs, rhs));
 
   EXPECT_TRUE(td()->DetermineResultType(&block));
-  ASSERT_NE(lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(rhs_ptr->result_type(), nullptr);
-  EXPECT_TRUE(lhs_ptr->result_type()->IsI32());
-  EXPECT_TRUE(rhs_ptr->result_type()->IsF32());
+  ASSERT_NE(lhs->result_type(), nullptr);
+  ASSERT_NE(rhs->result_type(), nullptr);
+  EXPECT_TRUE(lhs->result_type()->IsI32());
+  EXPECT_TRUE(rhs->result_type()->IsF32());
 }
 
 TEST_F(TypeDeterminerTest, Stmt_Else) {
@@ -205,27 +194,23 @@ TEST_F(TypeDeterminerTest, Stmt_Else) {
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
-  auto* lhs_ptr = lhs;
-
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.3f));
-  auto* rhs_ptr = rhs;
 
   auto* body = create<ast::BlockStatement>();
-  body->append(
-      create<ast::AssignmentStatement>(std::move(lhs), std::move(rhs)));
+  body->append(create<ast::AssignmentStatement>(lhs, rhs));
 
   ast::ElseStatement stmt(create<ast::ScalarConstructorExpression>(
                               create<ast::SintLiteral>(&i32, 3)),
-                          std::move(body));
+                          body);
 
   EXPECT_TRUE(td()->DetermineResultType(&stmt));
   ASSERT_NE(stmt.condition()->result_type(), nullptr);
-  ASSERT_NE(lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(rhs_ptr->result_type(), nullptr);
+  ASSERT_NE(lhs->result_type(), nullptr);
+  ASSERT_NE(rhs->result_type(), nullptr);
   EXPECT_TRUE(stmt.condition()->result_type()->IsI32());
-  EXPECT_TRUE(lhs_ptr->result_type()->IsI32());
-  EXPECT_TRUE(rhs_ptr->result_type()->IsF32());
+  EXPECT_TRUE(lhs->result_type()->IsI32());
+  EXPECT_TRUE(rhs->result_type()->IsF32());
 }
 
 TEST_F(TypeDeterminerTest, Stmt_If) {
@@ -234,52 +219,44 @@ TEST_F(TypeDeterminerTest, Stmt_If) {
 
   auto* else_lhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
-  auto* else_lhs_ptr = else_lhs;
-
   auto* else_rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.3f));
-  auto* else_rhs_ptr = else_rhs;
 
   auto* else_body = create<ast::BlockStatement>();
-  else_body->append(create<ast::AssignmentStatement>(std::move(else_lhs),
-                                                     std::move(else_rhs)));
+  else_body->append(create<ast::AssignmentStatement>(else_lhs, else_rhs));
 
   auto* else_stmt =
       create<ast::ElseStatement>(create<ast::ScalarConstructorExpression>(
                                      create<ast::SintLiteral>(&i32, 3)),
-                                 std::move(else_body));
+                                 else_body);
 
   ast::ElseStatementList else_stmts;
-  else_stmts.push_back(std::move(else_stmt));
+  else_stmts.push_back(else_stmt);
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
-  auto* lhs_ptr = lhs;
-
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.3f));
-  auto* rhs_ptr = rhs;
 
   auto* body = create<ast::BlockStatement>();
-  body->append(
-      create<ast::AssignmentStatement>(std::move(lhs), std::move(rhs)));
+  body->append(create<ast::AssignmentStatement>(lhs, rhs));
 
   ast::IfStatement stmt(create<ast::ScalarConstructorExpression>(
                             create<ast::SintLiteral>(&i32, 3)),
-                        std::move(body));
-  stmt.set_else_statements(std::move(else_stmts));
+                        body);
+  stmt.set_else_statements(else_stmts);
 
   EXPECT_TRUE(td()->DetermineResultType(&stmt));
   ASSERT_NE(stmt.condition()->result_type(), nullptr);
-  ASSERT_NE(else_lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(else_rhs_ptr->result_type(), nullptr);
-  ASSERT_NE(lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(rhs_ptr->result_type(), nullptr);
+  ASSERT_NE(else_lhs->result_type(), nullptr);
+  ASSERT_NE(else_rhs->result_type(), nullptr);
+  ASSERT_NE(lhs->result_type(), nullptr);
+  ASSERT_NE(rhs->result_type(), nullptr);
   EXPECT_TRUE(stmt.condition()->result_type()->IsI32());
-  EXPECT_TRUE(else_lhs_ptr->result_type()->IsI32());
-  EXPECT_TRUE(else_rhs_ptr->result_type()->IsF32());
-  EXPECT_TRUE(lhs_ptr->result_type()->IsI32());
-  EXPECT_TRUE(rhs_ptr->result_type()->IsF32());
+  EXPECT_TRUE(else_lhs->result_type()->IsI32());
+  EXPECT_TRUE(else_rhs->result_type()->IsF32());
+  EXPECT_TRUE(lhs->result_type()->IsI32());
+  EXPECT_TRUE(rhs->result_type()->IsF32());
 }
 
 TEST_F(TypeDeterminerTest, Stmt_Loop) {
@@ -288,39 +265,32 @@ TEST_F(TypeDeterminerTest, Stmt_Loop) {
 
   auto* body_lhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
-  auto* body_lhs_ptr = body_lhs;
-
   auto* body_rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.3f));
-  auto* body_rhs_ptr = body_rhs;
 
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::AssignmentStatement>(std::move(body_lhs),
-                                                std::move(body_rhs)));
+  body->append(create<ast::AssignmentStatement>(body_lhs, body_rhs));
 
   auto* continuing_lhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
-  auto* continuing_lhs_ptr = continuing_lhs;
-
   auto* continuing_rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.3f));
-  auto* continuing_rhs_ptr = continuing_rhs;
 
   auto* continuing = create<ast::BlockStatement>();
-  continuing->append(create<ast::AssignmentStatement>(
-      std::move(continuing_lhs), std::move(continuing_rhs)));
+  continuing->append(
+      create<ast::AssignmentStatement>(continuing_lhs, continuing_rhs));
 
-  ast::LoopStatement stmt(std::move(body), std::move(continuing));
+  ast::LoopStatement stmt(body, continuing);
 
   EXPECT_TRUE(td()->DetermineResultType(&stmt));
-  ASSERT_NE(body_lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(body_rhs_ptr->result_type(), nullptr);
-  ASSERT_NE(continuing_lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(continuing_rhs_ptr->result_type(), nullptr);
-  EXPECT_TRUE(body_lhs_ptr->result_type()->IsI32());
-  EXPECT_TRUE(body_rhs_ptr->result_type()->IsF32());
-  EXPECT_TRUE(continuing_lhs_ptr->result_type()->IsI32());
-  EXPECT_TRUE(continuing_rhs_ptr->result_type()->IsF32());
+  ASSERT_NE(body_lhs->result_type(), nullptr);
+  ASSERT_NE(body_rhs->result_type(), nullptr);
+  ASSERT_NE(continuing_lhs->result_type(), nullptr);
+  ASSERT_NE(continuing_rhs->result_type(), nullptr);
+  EXPECT_TRUE(body_lhs->result_type()->IsI32());
+  EXPECT_TRUE(body_rhs->result_type()->IsF32());
+  EXPECT_TRUE(continuing_lhs->result_type()->IsI32());
+  EXPECT_TRUE(continuing_rhs->result_type()->IsF32());
 }
 
 TEST_F(TypeDeterminerTest, Stmt_Return) {
@@ -328,13 +298,12 @@ TEST_F(TypeDeterminerTest, Stmt_Return) {
 
   auto* cond = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
-  auto* cond_ptr = cond;
 
-  ast::ReturnStatement ret(std::move(cond));
+  ast::ReturnStatement ret(cond);
 
   EXPECT_TRUE(td()->DetermineResultType(&ret));
-  ASSERT_NE(cond_ptr->result_type(), nullptr);
-  EXPECT_TRUE(cond_ptr->result_type()->IsI32());
+  ASSERT_NE(cond->result_type(), nullptr);
+  EXPECT_TRUE(cond->result_type()->IsI32());
 }
 
 TEST_F(TypeDeterminerTest, Stmt_Return_WithoutValue) {
@@ -349,56 +318,51 @@ TEST_F(TypeDeterminerTest, Stmt_Switch) {
 
   auto* lhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
-  auto* lhs_ptr = lhs;
-
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.3f));
-  auto* rhs_ptr = rhs;
 
   auto* body = create<ast::BlockStatement>();
-  body->append(
-      create<ast::AssignmentStatement>(std::move(lhs), std::move(rhs)));
+  body->append(create<ast::AssignmentStatement>(lhs, rhs));
 
   ast::CaseSelectorList lit;
   lit.push_back(create<ast::SintLiteral>(&i32, 3));
 
   ast::CaseStatementList cases;
-  cases.push_back(create<ast::CaseStatement>(std::move(lit), std::move(body)));
+  cases.push_back(create<ast::CaseStatement>(lit, body));
 
   ast::SwitchStatement stmt(create<ast::ScalarConstructorExpression>(
                                 create<ast::SintLiteral>(&i32, 2)),
-                            std::move(cases));
+                            cases);
 
   EXPECT_TRUE(td()->DetermineResultType(&stmt)) << td()->error();
   ASSERT_NE(stmt.condition()->result_type(), nullptr);
-  ASSERT_NE(lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(rhs_ptr->result_type(), nullptr);
+  ASSERT_NE(lhs->result_type(), nullptr);
+  ASSERT_NE(rhs->result_type(), nullptr);
 
   EXPECT_TRUE(stmt.condition()->result_type()->IsI32());
-  EXPECT_TRUE(lhs_ptr->result_type()->IsI32());
-  EXPECT_TRUE(rhs_ptr->result_type()->IsF32());
+  EXPECT_TRUE(lhs->result_type()->IsI32());
+  EXPECT_TRUE(rhs->result_type()->IsF32());
 }
 
 TEST_F(TypeDeterminerTest, Stmt_Call) {
   ast::type::F32Type f32;
 
   ast::VariableList params;
-  auto* func = create<ast::Function>("my_func", std::move(params), &f32,
+  auto* func = create<ast::Function>("my_func", params, &f32,
                                      create<ast::BlockStatement>());
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   // Register the function
   EXPECT_TRUE(td()->Determine());
 
   ast::ExpressionList call_params;
   auto* expr = create<ast::CallExpression>(
-      create<ast::IdentifierExpression>("my_func"), std::move(call_params));
-  auto* expr_ptr = expr;
+      create<ast::IdentifierExpression>("my_func"), call_params);
 
-  ast::CallStatement call(std::move(expr));
+  ast::CallStatement call(expr);
   EXPECT_TRUE(td()->DetermineResultType(&call));
-  ASSERT_NE(expr_ptr->result_type(), nullptr);
-  EXPECT_TRUE(expr_ptr->result_type()->IsF32());
+  ASSERT_NE(expr->result_type(), nullptr);
+  EXPECT_TRUE(expr->result_type()->IsF32());
 }
 
 TEST_F(TypeDeterminerTest, Stmt_Call_undeclared) {
@@ -409,20 +373,18 @@ TEST_F(TypeDeterminerTest, Stmt_Call_undeclared) {
   auto* call_expr =
       create<ast::CallExpression>(create<ast::IdentifierExpression>(
                                       Source{Source::Location{12, 34}}, "func"),
-                                  std::move(call_params));
+                                  call_params);
   ast::VariableList params0;
   auto* main_body = create<ast::BlockStatement>();
-  main_body->append(create<ast::CallStatement>(std::move(call_expr)));
+  main_body->append(create<ast::CallStatement>(call_expr));
   main_body->append(create<ast::ReturnStatement>());
-  auto* func_main = create<ast::Function>("main", std::move(params0), &f32,
-                                          std::move(main_body));
-  mod()->AddFunction(std::move(func_main));
+  auto* func_main = create<ast::Function>("main", params0, &f32, main_body);
+  mod()->AddFunction(func_main);
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
-  auto* func =
-      create<ast::Function>("func", std::move(params0), &f32, std::move(body));
-  mod()->AddFunction(std::move(func));
+  auto* func = create<ast::Function>("func", params0, &f32, body);
+  mod()->AddFunction(func);
 
   EXPECT_FALSE(td()->Determine()) << td()->error();
   EXPECT_EQ(td()->error(),
@@ -434,13 +396,13 @@ TEST_F(TypeDeterminerTest, Stmt_VariableDecl) {
   auto* var = create<ast::Variable>("my_var", ast::StorageClass::kNone, &i32);
   var->set_constructor(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2)));
-  auto* init_ptr = var->constructor();
+  auto* init = var->constructor();
 
-  ast::VariableDeclStatement decl(std::move(var));
+  ast::VariableDeclStatement decl(var);
 
   EXPECT_TRUE(td()->DetermineResultType(&decl));
-  ASSERT_NE(init_ptr->result_type(), nullptr);
-  EXPECT_TRUE(init_ptr->result_type()->IsI32());
+  ASSERT_NE(init->result_type(), nullptr);
+  EXPECT_TRUE(init->result_type()->IsI32());
 }
 
 TEST_F(TypeDeterminerTest, Stmt_VariableDecl_ModuleScope) {
@@ -448,13 +410,13 @@ TEST_F(TypeDeterminerTest, Stmt_VariableDecl_ModuleScope) {
   auto* var = create<ast::Variable>("my_var", ast::StorageClass::kNone, &i32);
   var->set_constructor(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2)));
-  auto* init_ptr = var->constructor();
+  auto* init = var->constructor();
 
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   EXPECT_TRUE(td()->Determine());
-  ASSERT_NE(init_ptr->result_type(), nullptr);
-  EXPECT_TRUE(init_ptr->result_type()->IsI32());
+  ASSERT_NE(init->result_type(), nullptr);
+  EXPECT_TRUE(init->result_type()->IsI32());
 }
 
 TEST_F(TypeDeterminerTest, Expr_Error_Unknown) {
@@ -474,13 +436,13 @@ TEST_F(TypeDeterminerTest, Expr_ArrayAccessor_Array) {
       create<ast::SintLiteral>(&i32, 2));
   auto* var =
       create<ast::Variable>("my_var", ast::StorageClass::kFunction, &ary);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
 
   ast::ArrayAccessorExpression acc(create<ast::IdentifierExpression>("my_var"),
-                                   std::move(idx));
+                                   idx);
   EXPECT_TRUE(td()->DetermineResultType(&acc));
   ASSERT_NE(acc.result_type(), nullptr);
   ASSERT_TRUE(acc.result_type()->IsPointer());
@@ -499,13 +461,13 @@ TEST_F(TypeDeterminerTest, Expr_ArrayAccessor_Alias_Array) {
       create<ast::SintLiteral>(&i32, 2));
   auto* var =
       create<ast::Variable>("my_var", ast::StorageClass::kFunction, &aary);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
 
   ast::ArrayAccessorExpression acc(create<ast::IdentifierExpression>("my_var"),
-                                   std::move(idx));
+                                   idx);
   EXPECT_TRUE(td()->DetermineResultType(&acc));
   ASSERT_NE(acc.result_type(), nullptr);
   ASSERT_TRUE(acc.result_type()->IsPointer());
@@ -524,13 +486,13 @@ TEST_F(TypeDeterminerTest, Expr_ArrayAccessor_Array_Constant) {
   auto* var =
       create<ast::Variable>("my_var", ast::StorageClass::kFunction, &ary);
   var->set_is_const(true);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
 
   ast::ArrayAccessorExpression acc(create<ast::IdentifierExpression>("my_var"),
-                                   std::move(idx));
+                                   idx);
   EXPECT_TRUE(td()->DetermineResultType(&acc));
   ASSERT_NE(acc.result_type(), nullptr);
   EXPECT_TRUE(acc.result_type()->IsF32()) << acc.result_type()->type_name();
@@ -544,13 +506,13 @@ TEST_F(TypeDeterminerTest, Expr_ArrayAccessor_Matrix) {
   auto* idx = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
   auto* var = create<ast::Variable>("my_var", ast::StorageClass::kNone, &mat);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
 
   ast::ArrayAccessorExpression acc(create<ast::IdentifierExpression>("my_var"),
-                                   std::move(idx));
+                                   idx);
   EXPECT_TRUE(td()->DetermineResultType(&acc));
   ASSERT_NE(acc.result_type(), nullptr);
   ASSERT_TRUE(acc.result_type()->IsPointer());
@@ -570,15 +532,15 @@ TEST_F(TypeDeterminerTest, Expr_ArrayAccessor_Matrix_BothDimensions) {
   auto* idx2 = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 1));
   auto* var = create<ast::Variable>("my_var", ast::StorageClass::kNone, &mat);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
 
   ast::ArrayAccessorExpression acc(
       create<ast::ArrayAccessorExpression>(
-          create<ast::IdentifierExpression>("my_var"), std::move(idx1)),
-      std::move(idx2));
+          create<ast::IdentifierExpression>("my_var"), idx1),
+      idx2);
 
   EXPECT_TRUE(td()->DetermineResultType(&acc));
   ASSERT_NE(acc.result_type(), nullptr);
@@ -596,13 +558,13 @@ TEST_F(TypeDeterminerTest, Expr_ArrayAccessor_Vector) {
   auto* idx = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
   auto* var = create<ast::Variable>("my_var", ast::StorageClass::kNone, &vec);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
 
   ast::ArrayAccessorExpression acc(create<ast::IdentifierExpression>("my_var"),
-                                   std::move(idx));
+                                   idx);
   EXPECT_TRUE(td()->DetermineResultType(&acc));
   ASSERT_NE(acc.result_type(), nullptr);
   ASSERT_TRUE(acc.result_type()->IsPointer());
@@ -628,16 +590,16 @@ TEST_F(TypeDeterminerTest, Expr_Call) {
   ast::type::F32Type f32;
 
   ast::VariableList params;
-  auto* func = create<ast::Function>("my_func", std::move(params), &f32,
+  auto* func = create<ast::Function>("my_func", params, &f32,
                                      create<ast::BlockStatement>());
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   // Register the function
   EXPECT_TRUE(td()->Determine());
 
   ast::ExpressionList call_params;
   ast::CallExpression call(create<ast::IdentifierExpression>("my_func"),
-                           std::move(call_params));
+                           call_params);
   EXPECT_TRUE(td()->DetermineResultType(&call));
   ASSERT_NE(call.result_type(), nullptr);
   EXPECT_TRUE(call.result_type()->IsF32());
@@ -647,9 +609,9 @@ TEST_F(TypeDeterminerTest, Expr_Call_WithParams) {
   ast::type::F32Type f32;
 
   ast::VariableList params;
-  auto* func = create<ast::Function>("my_func", std::move(params), &f32,
+  auto* func = create<ast::Function>("my_func", params, &f32,
                                      create<ast::BlockStatement>());
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   // Register the function
   EXPECT_TRUE(td()->Determine());
@@ -658,13 +620,13 @@ TEST_F(TypeDeterminerTest, Expr_Call_WithParams) {
   call_params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.4)));
 
-  auto* param_ptr = call_params.back();
+  auto* param = call_params.back();
 
   ast::CallExpression call(create<ast::IdentifierExpression>("my_func"),
-                           std::move(call_params));
+                           call_params);
   EXPECT_TRUE(td()->DetermineResultType(&call));
-  ASSERT_NE(param_ptr->result_type(), nullptr);
-  EXPECT_TRUE(param_ptr->result_type()->IsF32());
+  ASSERT_NE(param->result_type(), nullptr);
+  EXPECT_TRUE(param->result_type()->IsF32());
 }
 
 TEST_F(TypeDeterminerTest, Expr_Call_Intrinsic) {
@@ -678,7 +640,7 @@ TEST_F(TypeDeterminerTest, Expr_Call_Intrinsic) {
       create<ast::FloatLiteral>(&f32, 2.4)));
 
   ast::CallExpression call(create<ast::IdentifierExpression>("round"),
-                           std::move(call_params));
+                           call_params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call));
   ASSERT_NE(call.result_type(), nullptr);
@@ -690,7 +652,7 @@ TEST_F(TypeDeterminerTest, Expr_Cast) {
 
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("name"));
-  ast::TypeConstructorExpression cast(&f32, std::move(params));
+  ast::TypeConstructorExpression cast(&f32, params);
 
   ast::Variable v("name", ast::StorageClass::kPrivate, &f32);
   td()->RegisterVariableForTesting(&v);
@@ -721,7 +683,7 @@ TEST_F(TypeDeterminerTest, Expr_Constructor_Type) {
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
-  ast::TypeConstructorExpression tc(&vec, std::move(vals));
+  ast::TypeConstructorExpression tc(&vec, vals);
 
   EXPECT_TRUE(td()->DetermineResultType(&tc));
   ASSERT_NE(tc.result_type(), nullptr);
@@ -733,7 +695,7 @@ TEST_F(TypeDeterminerTest, Expr_Constructor_Type) {
 TEST_F(TypeDeterminerTest, Expr_Identifier_GlobalVariable) {
   ast::type::F32Type f32;
   auto* var = create<ast::Variable>("my_var", ast::StorageClass::kNone, &f32);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
@@ -749,7 +711,7 @@ TEST_F(TypeDeterminerTest, Expr_Identifier_GlobalConstant) {
   ast::type::F32Type f32;
   auto* var = create<ast::Variable>("my_var", ast::StorageClass::kNone, &f32);
   var->set_is_const(true);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
@@ -764,44 +726,42 @@ TEST_F(TypeDeterminerTest, Expr_Identifier_FunctionVariable_Const) {
   ast::type::F32Type f32;
 
   auto* my_var = create<ast::IdentifierExpression>("my_var");
-  auto* my_var_ptr = my_var;
 
   auto* var = create<ast::Variable>("my_var", ast::StorageClass::kNone, &f32);
   var->set_is_const(true);
 
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::AssignmentStatement>(
-      std::move(my_var), create<ast::IdentifierExpression>("my_var")));
+      my_var, create<ast::IdentifierExpression>("my_var")));
 
-  ast::Function f("my_func", {}, &f32, std::move(body));
+  ast::Function f("my_func", {}, &f32, body);
 
   EXPECT_TRUE(td()->DetermineFunction(&f));
 
-  ASSERT_NE(my_var_ptr->result_type(), nullptr);
-  EXPECT_TRUE(my_var_ptr->result_type()->IsF32());
+  ASSERT_NE(my_var->result_type(), nullptr);
+  EXPECT_TRUE(my_var->result_type()->IsF32());
 }
 
 TEST_F(TypeDeterminerTest, Expr_Identifier_FunctionVariable) {
   ast::type::F32Type f32;
 
   auto* my_var = create<ast::IdentifierExpression>("my_var");
-  auto* my_var_ptr = my_var;
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::VariableDeclStatement>(
       create<ast::Variable>("my_var", ast::StorageClass::kNone, &f32)));
 
   body->append(create<ast::AssignmentStatement>(
-      std::move(my_var), create<ast::IdentifierExpression>("my_var")));
+      my_var, create<ast::IdentifierExpression>("my_var")));
 
-  ast::Function f("my_func", {}, &f32, std::move(body));
+  ast::Function f("my_func", {}, &f32, body);
 
   EXPECT_TRUE(td()->DetermineFunction(&f));
 
-  ASSERT_NE(my_var_ptr->result_type(), nullptr);
-  EXPECT_TRUE(my_var_ptr->result_type()->IsPointer());
-  EXPECT_TRUE(my_var_ptr->result_type()->AsPointer()->type()->IsF32());
+  ASSERT_NE(my_var->result_type(), nullptr);
+  EXPECT_TRUE(my_var->result_type()->IsPointer());
+  EXPECT_TRUE(my_var->result_type()->AsPointer()->type()->IsF32());
 }
 
 TEST_F(TypeDeterminerTest, Expr_Identifier_Function_Ptr) {
@@ -809,31 +769,30 @@ TEST_F(TypeDeterminerTest, Expr_Identifier_Function_Ptr) {
   ast::type::PointerType ptr(&f32, ast::StorageClass::kFunction);
 
   auto* my_var = create<ast::IdentifierExpression>("my_var");
-  auto* my_var_ptr = my_var;
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::VariableDeclStatement>(
       create<ast::Variable>("my_var", ast::StorageClass::kNone, &ptr)));
 
   body->append(create<ast::AssignmentStatement>(
-      std::move(my_var), create<ast::IdentifierExpression>("my_var")));
+      my_var, create<ast::IdentifierExpression>("my_var")));
 
-  ast::Function f("my_func", {}, &f32, std::move(body));
+  ast::Function f("my_func", {}, &f32, body);
 
   EXPECT_TRUE(td()->DetermineFunction(&f));
 
-  ASSERT_NE(my_var_ptr->result_type(), nullptr);
-  EXPECT_TRUE(my_var_ptr->result_type()->IsPointer());
-  EXPECT_TRUE(my_var_ptr->result_type()->AsPointer()->type()->IsF32());
+  ASSERT_NE(my_var->result_type(), nullptr);
+  EXPECT_TRUE(my_var->result_type()->IsPointer());
+  EXPECT_TRUE(my_var->result_type()->AsPointer()->type()->IsF32());
 }
 
 TEST_F(TypeDeterminerTest, Expr_Identifier_Function) {
   ast::type::F32Type f32;
 
   ast::VariableList params;
-  auto* func = create<ast::Function>("my_func", std::move(params), &f32,
+  auto* func = create<ast::Function>("my_func", params, &f32,
                                      create<ast::BlockStatement>());
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   // Register the function
   EXPECT_TRUE(td()->Determine());
@@ -863,17 +822,11 @@ TEST_F(TypeDeterminerTest, Function_RegisterInputOutputVariables) {
   auto* priv_var =
       create<ast::Variable>("priv_var", ast::StorageClass::kPrivate, &f32);
 
-  auto* in_ptr = in_var;
-  auto* out_ptr = out_var;
-  auto* sb_ptr = sb_var;
-  auto* wg_ptr = wg_var;
-  auto* priv_ptr = priv_var;
-
-  mod()->AddGlobalVariable(std::move(in_var));
-  mod()->AddGlobalVariable(std::move(out_var));
-  mod()->AddGlobalVariable(std::move(sb_var));
-  mod()->AddGlobalVariable(std::move(wg_var));
-  mod()->AddGlobalVariable(std::move(priv_var));
+  mod()->AddGlobalVariable(in_var);
+  mod()->AddGlobalVariable(out_var);
+  mod()->AddGlobalVariable(sb_var);
+  mod()->AddGlobalVariable(wg_var);
+  mod()->AddGlobalVariable(priv_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -889,22 +842,20 @@ TEST_F(TypeDeterminerTest, Function_RegisterInputOutputVariables) {
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>("priv_var"),
       create<ast::IdentifierExpression>("priv_var")));
-  auto* func = create<ast::Function>("my_func", std::move(params), &f32,
-                                     std::move(body));
-  auto* func_ptr = func;
+  auto* func = create<ast::Function>("my_func", params, &f32, body);
 
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   // Register the function
   EXPECT_TRUE(td()->Determine());
 
-  const auto& vars = func_ptr->referenced_module_variables();
+  const auto& vars = func->referenced_module_variables();
   ASSERT_EQ(vars.size(), 5u);
-  EXPECT_EQ(vars[0], out_ptr);
-  EXPECT_EQ(vars[1], in_ptr);
-  EXPECT_EQ(vars[2], wg_ptr);
-  EXPECT_EQ(vars[3], sb_ptr);
-  EXPECT_EQ(vars[4], priv_ptr);
+  EXPECT_EQ(vars[0], out_var);
+  EXPECT_EQ(vars[1], in_var);
+  EXPECT_EQ(vars[2], wg_var);
+  EXPECT_EQ(vars[3], sb_var);
+  EXPECT_EQ(vars[4], priv_var);
 }
 
 TEST_F(TypeDeterminerTest, Function_RegisterInputOutputVariables_SubFunction) {
@@ -921,17 +872,11 @@ TEST_F(TypeDeterminerTest, Function_RegisterInputOutputVariables_SubFunction) {
   auto* priv_var =
       create<ast::Variable>("priv_var", ast::StorageClass::kPrivate, &f32);
 
-  auto* in_ptr = in_var;
-  auto* out_ptr = out_var;
-  auto* sb_ptr = sb_var;
-  auto* wg_ptr = wg_var;
-  auto* priv_ptr = priv_var;
-
-  mod()->AddGlobalVariable(std::move(in_var));
-  mod()->AddGlobalVariable(std::move(out_var));
-  mod()->AddGlobalVariable(std::move(sb_var));
-  mod()->AddGlobalVariable(std::move(wg_var));
-  mod()->AddGlobalVariable(std::move(priv_var));
+  mod()->AddGlobalVariable(in_var);
+  mod()->AddGlobalVariable(out_var);
+  mod()->AddGlobalVariable(sb_var);
+  mod()->AddGlobalVariable(wg_var);
+  mod()->AddGlobalVariable(priv_var);
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
@@ -947,32 +892,29 @@ TEST_F(TypeDeterminerTest, Function_RegisterInputOutputVariables_SubFunction) {
       create<ast::IdentifierExpression>("priv_var"),
       create<ast::IdentifierExpression>("priv_var")));
   ast::VariableList params;
-  auto* func = create<ast::Function>("my_func", std::move(params), &f32,
-                                     std::move(body));
+  auto* func = create<ast::Function>("my_func", params, &f32, body);
 
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>("out_var"),
       create<ast::CallExpression>(create<ast::IdentifierExpression>("my_func"),
                                   ast::ExpressionList{})));
-  auto* func2 =
-      create<ast::Function>("func", std::move(params), &f32, std::move(body));
-  auto* func2_ptr = func2;
+  auto* func2 = create<ast::Function>("func", params, &f32, body);
 
-  mod()->AddFunction(std::move(func2));
+  mod()->AddFunction(func2);
 
   // Register the function
   EXPECT_TRUE(td()->Determine());
 
-  const auto& vars = func2_ptr->referenced_module_variables();
+  const auto& vars = func2->referenced_module_variables();
   ASSERT_EQ(vars.size(), 5u);
-  EXPECT_EQ(vars[0], out_ptr);
-  EXPECT_EQ(vars[1], in_ptr);
-  EXPECT_EQ(vars[2], wg_ptr);
-  EXPECT_EQ(vars[3], sb_ptr);
-  EXPECT_EQ(vars[4], priv_ptr);
+  EXPECT_EQ(vars[0], out_var);
+  EXPECT_EQ(vars[1], in_var);
+  EXPECT_EQ(vars[2], wg_var);
+  EXPECT_EQ(vars[3], sb_var);
+  EXPECT_EQ(vars[4], priv_var);
 }
 
 TEST_F(TypeDeterminerTest, Function_NotRegisterFunctionVariable) {
@@ -982,18 +924,16 @@ TEST_F(TypeDeterminerTest, Function_NotRegisterFunctionVariable) {
       create<ast::Variable>("in_var", ast::StorageClass::kFunction, &f32);
 
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>("var"),
       create<ast::ScalarConstructorExpression>(
           create<ast::FloatLiteral>(&f32, 1.f))));
 
   ast::VariableList params;
-  auto* func = create<ast::Function>("my_func", std::move(params), &f32,
-                                     std::move(body));
-  auto* func_ptr = func;
+  auto* func = create<ast::Function>("my_func", params, &f32, body);
 
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   ast::Variable v("var", ast::StorageClass::kFunction, &f32);
   td()->RegisterVariableForTesting(&v);
@@ -1001,7 +941,7 @@ TEST_F(TypeDeterminerTest, Function_NotRegisterFunctionVariable) {
   // Register the function
   EXPECT_TRUE(td()->Determine()) << td()->error();
 
-  EXPECT_EQ(func_ptr->referenced_module_variables().size(), 0u);
+  EXPECT_EQ(func->referenced_module_variables().size(), 0u);
 }
 
 TEST_F(TypeDeterminerTest, Expr_MemberAccessor_Struct) {
@@ -1010,18 +950,16 @@ TEST_F(TypeDeterminerTest, Expr_MemberAccessor_Struct) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(
-      create<ast::StructMember>("first_member", &i32, std::move(decos)));
-  members.push_back(
-      create<ast::StructMember>("second_member", &f32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("first_member", &i32, decos));
+  members.push_back(create<ast::StructMember>("second_member", &f32, decos));
 
-  auto* strct = create<ast::Struct>(std::move(members));
+  auto* strct = create<ast::Struct>(members);
 
-  ast::type::StructType st("S", std::move(strct));
+  ast::type::StructType st("S", strct);
 
   auto* var = create<ast::Variable>("my_struct", ast::StorageClass::kNone, &st);
 
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
@@ -1029,7 +967,7 @@ TEST_F(TypeDeterminerTest, Expr_MemberAccessor_Struct) {
   auto* ident = create<ast::IdentifierExpression>("my_struct");
   auto* mem_ident = create<ast::IdentifierExpression>("second_member");
 
-  ast::MemberAccessorExpression mem(std::move(ident), std::move(mem_ident));
+  ast::MemberAccessorExpression mem(ident, mem_ident);
   EXPECT_TRUE(td()->DetermineResultType(&mem));
   ASSERT_NE(mem.result_type(), nullptr);
   ASSERT_TRUE(mem.result_type()->IsPointer());
@@ -1044,20 +982,18 @@ TEST_F(TypeDeterminerTest, Expr_MemberAccessor_Struct_Alias) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(
-      create<ast::StructMember>("first_member", &i32, std::move(decos)));
-  members.push_back(
-      create<ast::StructMember>("second_member", &f32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("first_member", &i32, decos));
+  members.push_back(create<ast::StructMember>("second_member", &f32, decos));
 
-  auto* strct = create<ast::Struct>(std::move(members));
+  auto* strct = create<ast::Struct>(members);
 
-  auto st = std::make_unique<ast::type::StructType>("alias", std::move(strct));
+  auto st = std::make_unique<ast::type::StructType>("alias", strct);
   ast::type::AliasType alias("alias", st.get());
 
   auto* var =
       create<ast::Variable>("my_struct", ast::StorageClass::kNone, &alias);
 
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
@@ -1065,7 +1001,7 @@ TEST_F(TypeDeterminerTest, Expr_MemberAccessor_Struct_Alias) {
   auto* ident = create<ast::IdentifierExpression>("my_struct");
   auto* mem_ident = create<ast::IdentifierExpression>("second_member");
 
-  ast::MemberAccessorExpression mem(std::move(ident), std::move(mem_ident));
+  ast::MemberAccessorExpression mem(ident, mem_ident);
   EXPECT_TRUE(td()->DetermineResultType(&mem));
   ASSERT_NE(mem.result_type(), nullptr);
   ASSERT_TRUE(mem.result_type()->IsPointer());
@@ -1079,7 +1015,7 @@ TEST_F(TypeDeterminerTest, Expr_MemberAccessor_VectorSwizzle) {
   ast::type::VectorType vec3(&f32, 3);
 
   auto* var = create<ast::Variable>("my_vec", ast::StorageClass::kNone, &vec3);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
@@ -1087,7 +1023,7 @@ TEST_F(TypeDeterminerTest, Expr_MemberAccessor_VectorSwizzle) {
   auto* ident = create<ast::IdentifierExpression>("my_vec");
   auto* swizzle = create<ast::IdentifierExpression>("xy");
 
-  ast::MemberAccessorExpression mem(std::move(ident), std::move(swizzle));
+  ast::MemberAccessorExpression mem(ident, swizzle);
   EXPECT_TRUE(td()->DetermineResultType(&mem)) << td()->error();
   ASSERT_NE(mem.result_type(), nullptr);
   ASSERT_TRUE(mem.result_type()->IsVector());
@@ -1100,7 +1036,7 @@ TEST_F(TypeDeterminerTest, Expr_MemberAccessor_VectorSwizzle_SingleElement) {
   ast::type::VectorType vec3(&f32, 3);
 
   auto* var = create<ast::Variable>("my_vec", ast::StorageClass::kNone, &vec3);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
@@ -1108,7 +1044,7 @@ TEST_F(TypeDeterminerTest, Expr_MemberAccessor_VectorSwizzle_SingleElement) {
   auto* ident = create<ast::IdentifierExpression>("my_vec");
   auto* swizzle = create<ast::IdentifierExpression>("x");
 
-  ast::MemberAccessorExpression mem(std::move(ident), std::move(swizzle));
+  ast::MemberAccessorExpression mem(ident, swizzle);
   EXPECT_TRUE(td()->DetermineResultType(&mem)) << td()->error();
   ASSERT_NE(mem.result_type(), nullptr);
   ASSERT_TRUE(mem.result_type()->IsPointer());
@@ -1149,24 +1085,22 @@ TEST_F(TypeDeterminerTest, Expr_Accessor_MultiLevel) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList b_members;
-  b_members.push_back(
-      create<ast::StructMember>("foo", &vec4, std::move(decos)));
+  b_members.push_back(create<ast::StructMember>("foo", &vec4, decos));
 
-  auto* strctB = create<ast::Struct>(std::move(b_members));
-  ast::type::StructType stB("B", std::move(strctB));
+  auto* strctB = create<ast::Struct>(b_members);
+  ast::type::StructType stB("B", strctB);
 
   ast::type::VectorType vecB(&stB, 3);
 
   ast::StructMemberList a_members;
-  a_members.push_back(
-      create<ast::StructMember>("mem", &vecB, std::move(decos)));
+  a_members.push_back(create<ast::StructMember>("mem", &vecB, decos));
 
-  auto* strctA = create<ast::Struct>(std::move(a_members));
+  auto* strctA = create<ast::Struct>(a_members);
 
-  ast::type::StructType stA("A", std::move(strctA));
+  ast::type::StructType stA("A", strctA);
 
   auto* var = create<ast::Variable>("c", ast::StorageClass::kNone, &stA);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
@@ -1181,11 +1115,9 @@ TEST_F(TypeDeterminerTest, Expr_Accessor_MultiLevel) {
   ast::MemberAccessorExpression mem(
       create<ast::MemberAccessorExpression>(
           create<ast::ArrayAccessorExpression>(
-              create<ast::MemberAccessorExpression>(std::move(ident),
-                                                    std::move(mem_ident)),
-              std::move(idx)),
-          std::move(foo_ident)),
-      std::move(swizzle));
+              create<ast::MemberAccessorExpression>(ident, mem_ident), idx),
+          foo_ident),
+      swizzle);
   EXPECT_TRUE(td()->DetermineResultType(&mem)) << td()->error();
 
   ASSERT_NE(mem.result_type(), nullptr);
@@ -1201,7 +1133,7 @@ TEST_P(Expr_Binary_BitwiseTest, Scalar) {
   ast::type::I32Type i32;
 
   auto* var = create<ast::Variable>("val", ast::StorageClass::kNone, &i32);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -1221,7 +1153,7 @@ TEST_P(Expr_Binary_BitwiseTest, Vector) {
   ast::type::VectorType vec3(&i32, 3);
 
   auto* var = create<ast::Variable>("val", ast::StorageClass::kNone, &vec3);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -1255,7 +1187,7 @@ TEST_P(Expr_Binary_LogicalTest, Scalar) {
 
   auto* var =
       create<ast::Variable>("val", ast::StorageClass::kNone, &bool_type);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -1275,7 +1207,7 @@ TEST_P(Expr_Binary_LogicalTest, Vector) {
   ast::type::VectorType vec3(&bool_type, 3);
 
   auto* var = create<ast::Variable>("val", ast::StorageClass::kNone, &vec3);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -1301,7 +1233,7 @@ TEST_P(Expr_Binary_CompareTest, Scalar) {
   ast::type::I32Type i32;
 
   auto* var = create<ast::Variable>("val", ast::StorageClass::kNone, &i32);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -1321,7 +1253,7 @@ TEST_P(Expr_Binary_CompareTest, Vector) {
   ast::type::VectorType vec3(&i32, 3);
 
   auto* var = create<ast::Variable>("val", ast::StorageClass::kNone, &vec3);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -1348,7 +1280,7 @@ TEST_F(TypeDeterminerTest, Expr_Binary_Multiply_Scalar_Scalar) {
   ast::type::I32Type i32;
 
   auto* var = create<ast::Variable>("val", ast::StorageClass::kNone, &i32);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -1370,8 +1302,8 @@ TEST_F(TypeDeterminerTest, Expr_Binary_Multiply_Vector_Scalar) {
       create<ast::Variable>("scalar", ast::StorageClass::kNone, &f32);
   auto* vector =
       create<ast::Variable>("vector", ast::StorageClass::kNone, &vec3);
-  mod()->AddGlobalVariable(std::move(scalar));
-  mod()->AddGlobalVariable(std::move(vector));
+  mod()->AddGlobalVariable(scalar);
+  mod()->AddGlobalVariable(vector);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -1395,8 +1327,8 @@ TEST_F(TypeDeterminerTest, Expr_Binary_Multiply_Scalar_Vector) {
       create<ast::Variable>("scalar", ast::StorageClass::kNone, &f32);
   auto* vector =
       create<ast::Variable>("vector", ast::StorageClass::kNone, &vec3);
-  mod()->AddGlobalVariable(std::move(scalar));
-  mod()->AddGlobalVariable(std::move(vector));
+  mod()->AddGlobalVariable(scalar);
+  mod()->AddGlobalVariable(vector);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -1418,7 +1350,7 @@ TEST_F(TypeDeterminerTest, Expr_Binary_Multiply_Vector_Vector) {
 
   auto* vector =
       create<ast::Variable>("vector", ast::StorageClass::kNone, &vec3);
-  mod()->AddGlobalVariable(std::move(vector));
+  mod()->AddGlobalVariable(vector);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -1442,8 +1374,8 @@ TEST_F(TypeDeterminerTest, Expr_Binary_Multiply_Matrix_Scalar) {
       create<ast::Variable>("scalar", ast::StorageClass::kNone, &f32);
   auto* matrix =
       create<ast::Variable>("matrix", ast::StorageClass::kNone, &mat3x2);
-  mod()->AddGlobalVariable(std::move(scalar));
-  mod()->AddGlobalVariable(std::move(matrix));
+  mod()->AddGlobalVariable(scalar);
+  mod()->AddGlobalVariable(matrix);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -1470,8 +1402,8 @@ TEST_F(TypeDeterminerTest, Expr_Binary_Multiply_Scalar_Matrix) {
       create<ast::Variable>("scalar", ast::StorageClass::kNone, &f32);
   auto* matrix =
       create<ast::Variable>("matrix", ast::StorageClass::kNone, &mat3x2);
-  mod()->AddGlobalVariable(std::move(scalar));
-  mod()->AddGlobalVariable(std::move(matrix));
+  mod()->AddGlobalVariable(scalar);
+  mod()->AddGlobalVariable(matrix);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -1499,8 +1431,8 @@ TEST_F(TypeDeterminerTest, Expr_Binary_Multiply_Matrix_Vector) {
       create<ast::Variable>("vector", ast::StorageClass::kNone, &vec3);
   auto* matrix =
       create<ast::Variable>("matrix", ast::StorageClass::kNone, &mat3x2);
-  mod()->AddGlobalVariable(std::move(vector));
-  mod()->AddGlobalVariable(std::move(matrix));
+  mod()->AddGlobalVariable(vector);
+  mod()->AddGlobalVariable(matrix);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -1525,8 +1457,8 @@ TEST_F(TypeDeterminerTest, Expr_Binary_Multiply_Vector_Matrix) {
       create<ast::Variable>("vector", ast::StorageClass::kNone, &vec3);
   auto* matrix =
       create<ast::Variable>("matrix", ast::StorageClass::kNone, &mat3x2);
-  mod()->AddGlobalVariable(std::move(vector));
-  mod()->AddGlobalVariable(std::move(matrix));
+  mod()->AddGlobalVariable(vector);
+  mod()->AddGlobalVariable(matrix);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -1551,8 +1483,8 @@ TEST_F(TypeDeterminerTest, Expr_Binary_Multiply_Matrix_Matrix) {
       create<ast::Variable>("mat4x3", ast::StorageClass::kNone, &mat4x3);
   auto* matrix2 =
       create<ast::Variable>("mat3x4", ast::StorageClass::kNone, &mat3x4);
-  mod()->AddGlobalVariable(std::move(matrix1));
-  mod()->AddGlobalVariable(std::move(matrix2));
+  mod()->AddGlobalVariable(matrix1);
+  mod()->AddGlobalVariable(matrix2);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -1578,7 +1510,7 @@ TEST_P(IntrinsicDerivativeTest, Scalar) {
   ast::type::F32Type f32;
 
   auto* var = create<ast::Variable>("ident", ast::StorageClass::kNone, &f32);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
@@ -1587,7 +1519,7 @@ TEST_P(IntrinsicDerivativeTest, Scalar) {
   call_params.push_back(create<ast::IdentifierExpression>("ident"));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(name),
-                           std::move(call_params));
+                           call_params);
   EXPECT_TRUE(td()->DetermineResultType(&expr));
 
   ASSERT_NE(expr.result_type(), nullptr);
@@ -1601,7 +1533,7 @@ TEST_P(IntrinsicDerivativeTest, Vector) {
   ast::type::VectorType vec4(&f32, 4);
 
   auto* var = create<ast::Variable>("ident", ast::StorageClass::kNone, &vec4);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
@@ -1610,7 +1542,7 @@ TEST_P(IntrinsicDerivativeTest, Vector) {
   call_params.push_back(create<ast::IdentifierExpression>("ident"));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(name),
-                           std::move(call_params));
+                           call_params);
   EXPECT_TRUE(td()->DetermineResultType(&expr));
 
   ASSERT_NE(expr.result_type(), nullptr);
@@ -1630,7 +1562,7 @@ TEST_P(IntrinsicDerivativeTest, MissingParam) {
 
   ast::ExpressionList call_params;
   ast::CallExpression expr(create<ast::IdentifierExpression>(name),
-                           std::move(call_params));
+                           call_params);
   EXPECT_FALSE(td()->DetermineResultType(&expr));
   EXPECT_EQ(td()->error(), "incorrect number of parameters for " + name);
 }
@@ -1643,8 +1575,8 @@ TEST_P(IntrinsicDerivativeTest, ToomManyParams) {
 
   auto* var1 = create<ast::Variable>("ident1", ast::StorageClass::kNone, &vec4);
   auto* var2 = create<ast::Variable>("ident2", ast::StorageClass::kNone, &vec4);
-  mod()->AddGlobalVariable(std::move(var1));
-  mod()->AddGlobalVariable(std::move(var2));
+  mod()->AddGlobalVariable(var1);
+  mod()->AddGlobalVariable(var2);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
@@ -1654,7 +1586,7 @@ TEST_P(IntrinsicDerivativeTest, ToomManyParams) {
   call_params.push_back(create<ast::IdentifierExpression>("ident2"));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(name),
-                           std::move(call_params));
+                           call_params);
   EXPECT_FALSE(td()->DetermineResultType(&expr));
   EXPECT_EQ(td()->error(), "incorrect number of parameters for " + name);
 }
@@ -1678,13 +1610,13 @@ TEST_P(Intrinsic, Test) {
   ast::type::VectorType vec3(&bool_type, 3);
 
   auto* var = create<ast::Variable>("my_var", ast::StorageClass::kNone, &vec3);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   ast::ExpressionList call_params;
   call_params.push_back(create<ast::IdentifierExpression>("my_var"));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(name),
-                           std::move(call_params));
+                           call_params);
 
   // Register the variable
   EXPECT_TRUE(td()->Determine());
@@ -1705,13 +1637,13 @@ TEST_P(Intrinsic_FloatMethod, Vector) {
   ast::type::VectorType vec3(&f32, 3);
 
   auto* var = create<ast::Variable>("my_var", ast::StorageClass::kNone, &vec3);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   ast::ExpressionList call_params;
   call_params.push_back(create<ast::IdentifierExpression>("my_var"));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(name),
-                           std::move(call_params));
+                           call_params);
 
   // Register the variable
   EXPECT_TRUE(td()->Determine());
@@ -1729,13 +1661,13 @@ TEST_P(Intrinsic_FloatMethod, Scalar) {
   ast::type::F32Type f32;
 
   auto* var = create<ast::Variable>("my_var", ast::StorageClass::kNone, &f32);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   ast::ExpressionList call_params;
   call_params.push_back(create<ast::IdentifierExpression>("my_var"));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(name),
-                           std::move(call_params));
+                           call_params);
 
   // Register the variable
   EXPECT_TRUE(td()->Determine());
@@ -1750,11 +1682,11 @@ TEST_P(Intrinsic_FloatMethod, MissingParam) {
   ast::type::F32Type f32;
 
   auto* var = create<ast::Variable>("my_var", ast::StorageClass::kNone, &f32);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   ast::ExpressionList call_params;
   ast::CallExpression expr(create<ast::IdentifierExpression>(name),
-                           std::move(call_params));
+                           call_params);
 
   // Register the variable
   EXPECT_TRUE(td()->Determine());
@@ -1768,14 +1700,14 @@ TEST_P(Intrinsic_FloatMethod, TooManyParams) {
   ast::type::F32Type f32;
 
   auto* var = create<ast::Variable>("my_var", ast::StorageClass::kNone, &f32);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   ast::ExpressionList call_params;
   call_params.push_back(create<ast::IdentifierExpression>("my_var"));
   call_params.push_back(create<ast::IdentifierExpression>("my_var"));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(name),
-                           std::move(call_params));
+                           call_params);
 
   // Register the variable
   EXPECT_TRUE(td()->Determine());
@@ -1837,7 +1769,7 @@ class Intrinsic_TextureOperation
                       ast::type::Type* type,
                       ast::ExpressionList* call_params) {
     auto* var = create<ast::Variable>(name, ast::StorageClass::kNone, type);
-    mod()->AddGlobalVariable(std::move(var));
+    mod()->AddGlobalVariable(var);
     call_params->push_back(create<ast::IdentifierExpression>(name));
   }
 
@@ -1872,7 +1804,7 @@ TEST_P(Intrinsic_StorageTextureOperation, TextureLoadRo) {
   add_call_param("lod", &i32, &call_params);
 
   ast::CallExpression expr(create<ast::IdentifierExpression>("textureLoad"),
-                           std::move(call_params));
+                           call_params);
 
   EXPECT_TRUE(td()->Determine());
   EXPECT_TRUE(td()->DetermineResultType(&expr));
@@ -1942,7 +1874,7 @@ TEST_P(Intrinsic_SampledTextureOperation, TextureLoadSampled) {
   add_call_param("lod", &i32, &call_params);
 
   ast::CallExpression expr(create<ast::IdentifierExpression>("textureLoad"),
-                           std::move(call_params));
+                           call_params);
 
   EXPECT_TRUE(td()->Determine());
   EXPECT_TRUE(td()->DetermineResultType(&expr));
@@ -1978,7 +1910,7 @@ TEST_P(Intrinsic_SampledTextureOperation, TextureSample) {
   add_call_param("coords", coords_type.get(), &call_params);
 
   ast::CallExpression expr(create<ast::IdentifierExpression>("textureSample"),
-                           std::move(call_params));
+                           call_params);
 
   EXPECT_TRUE(td()->Determine());
   EXPECT_TRUE(td()->DetermineResultType(&expr));
@@ -2015,8 +1947,7 @@ TEST_P(Intrinsic_SampledTextureOperation, TextureSampleLevel) {
   add_call_param("lod", &f32, &call_params);
 
   ast::CallExpression expr(
-      create<ast::IdentifierExpression>("textureSampleLevel"),
-      std::move(call_params));
+      create<ast::IdentifierExpression>("textureSampleLevel"), call_params);
 
   EXPECT_TRUE(td()->Determine());
   EXPECT_TRUE(td()->DetermineResultType(&expr));
@@ -2053,8 +1984,7 @@ TEST_P(Intrinsic_SampledTextureOperation, TextureSampleBias) {
   add_call_param("bias", &f32, &call_params);
 
   ast::CallExpression expr(
-      create<ast::IdentifierExpression>("textureSampleBias"),
-      std::move(call_params));
+      create<ast::IdentifierExpression>("textureSampleBias"), call_params);
 
   EXPECT_TRUE(td()->Determine());
   EXPECT_TRUE(td()->DetermineResultType(&expr));
@@ -2127,8 +2057,7 @@ TEST_P(Intrinsic_DepthTextureOperation, TextureSampleCompare) {
   add_call_param("depth_reference", &f32, &call_params);
 
   ast::CallExpression expr(
-      create<ast::IdentifierExpression>("textureSampleCompare"),
-      std::move(call_params));
+      create<ast::IdentifierExpression>("textureSampleCompare"), call_params);
 
   EXPECT_TRUE(td()->Determine());
   EXPECT_TRUE(td()->DetermineResultType(&expr));
@@ -2151,14 +2080,14 @@ TEST_F(TypeDeterminerTest, Intrinsic_Dot) {
   ast::type::VectorType vec3(&f32, 3);
 
   auto* var = create<ast::Variable>("my_var", ast::StorageClass::kNone, &vec3);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   ast::ExpressionList call_params;
   call_params.push_back(create<ast::IdentifierExpression>("my_var"));
   call_params.push_back(create<ast::IdentifierExpression>("my_var"));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>("dot"),
-                           std::move(call_params));
+                           call_params);
 
   // Register the variable
   EXPECT_TRUE(td()->Determine());
@@ -2176,8 +2105,8 @@ TEST_F(TypeDeterminerTest, Intrinsic_Select) {
   auto* var = create<ast::Variable>("my_var", ast::StorageClass::kNone, &vec3);
   auto* bool_var =
       create<ast::Variable>("bool_var", ast::StorageClass::kNone, &bool_vec3);
-  mod()->AddGlobalVariable(std::move(var));
-  mod()->AddGlobalVariable(std::move(bool_var));
+  mod()->AddGlobalVariable(var);
+  mod()->AddGlobalVariable(bool_var);
 
   ast::ExpressionList call_params;
   call_params.push_back(create<ast::IdentifierExpression>("my_var"));
@@ -2185,7 +2114,7 @@ TEST_F(TypeDeterminerTest, Intrinsic_Select) {
   call_params.push_back(create<ast::IdentifierExpression>("bool_var"));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>("select"),
-                           std::move(call_params));
+                           call_params);
 
   // Register the variable
   EXPECT_TRUE(td()->Determine());
@@ -2201,13 +2130,13 @@ TEST_F(TypeDeterminerTest, Intrinsic_Select_TooFewParams) {
   ast::type::VectorType vec3(&f32, 3);
 
   auto* var = create<ast::Variable>("v", ast::StorageClass::kNone, &vec3);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   ast::ExpressionList call_params;
   call_params.push_back(create<ast::IdentifierExpression>("v"));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>("select"),
-                           std::move(call_params));
+                           call_params);
 
   // Register the variable
   EXPECT_TRUE(td()->Determine());
@@ -2221,7 +2150,7 @@ TEST_F(TypeDeterminerTest, Intrinsic_Select_TooManyParams) {
   ast::type::VectorType vec3(&f32, 3);
 
   auto* var = create<ast::Variable>("v", ast::StorageClass::kNone, &vec3);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   ast::ExpressionList call_params;
   call_params.push_back(create<ast::IdentifierExpression>("v"));
@@ -2230,7 +2159,7 @@ TEST_F(TypeDeterminerTest, Intrinsic_Select_TooManyParams) {
   call_params.push_back(create<ast::IdentifierExpression>("v"));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>("select"),
-                           std::move(call_params));
+                           call_params);
 
   // Register the variable
   EXPECT_TRUE(td()->Determine());
@@ -2246,15 +2175,15 @@ TEST_F(TypeDeterminerTest, Intrinsic_OuterProduct) {
 
   auto* var1 = create<ast::Variable>("v3", ast::StorageClass::kNone, &vec3);
   auto* var2 = create<ast::Variable>("v2", ast::StorageClass::kNone, &vec2);
-  mod()->AddGlobalVariable(std::move(var1));
-  mod()->AddGlobalVariable(std::move(var2));
+  mod()->AddGlobalVariable(var1);
+  mod()->AddGlobalVariable(var2);
 
   ast::ExpressionList call_params;
   call_params.push_back(create<ast::IdentifierExpression>("v3"));
   call_params.push_back(create<ast::IdentifierExpression>("v2"));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>("outerProduct"),
-                           std::move(call_params));
+                           call_params);
 
   // Register the variable
   EXPECT_TRUE(td()->Determine());
@@ -2275,13 +2204,13 @@ TEST_F(TypeDeterminerTest, Intrinsic_OuterProduct_TooFewParams) {
   ast::type::VectorType vec2(&f32, 2);
 
   auto* var2 = create<ast::Variable>("v2", ast::StorageClass::kNone, &vec2);
-  mod()->AddGlobalVariable(std::move(var2));
+  mod()->AddGlobalVariable(var2);
 
   ast::ExpressionList call_params;
   call_params.push_back(create<ast::IdentifierExpression>("v2"));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>("outerProduct"),
-                           std::move(call_params));
+                           call_params);
 
   // Register the variable
   EXPECT_TRUE(td()->Determine());
@@ -2295,7 +2224,7 @@ TEST_F(TypeDeterminerTest, Intrinsic_OuterProduct_TooManyParams) {
   ast::type::VectorType vec2(&f32, 2);
 
   auto* var2 = create<ast::Variable>("v2", ast::StorageClass::kNone, &vec2);
-  mod()->AddGlobalVariable(std::move(var2));
+  mod()->AddGlobalVariable(var2);
 
   ast::ExpressionList call_params;
   call_params.push_back(create<ast::IdentifierExpression>("v2"));
@@ -2303,7 +2232,7 @@ TEST_F(TypeDeterminerTest, Intrinsic_OuterProduct_TooManyParams) {
   call_params.push_back(create<ast::IdentifierExpression>("v2"));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>("outerProduct"),
-                           std::move(call_params));
+                           call_params);
 
   // Register the variable
   EXPECT_TRUE(td()->Determine());
@@ -2320,7 +2249,7 @@ TEST_P(UnaryOpExpressionTest, Expr_UnaryOp) {
   ast::type::VectorType vec4(&f32, 4);
 
   auto* var = create<ast::Variable>("ident", ast::StorageClass::kNone, &vec4);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   EXPECT_TRUE(td()->Determine());
@@ -2341,18 +2270,16 @@ TEST_F(TypeDeterminerTest, StorageClass_SetsIfMissing) {
   ast::type::I32Type i32;
 
   auto* var = create<ast::Variable>("var", ast::StorageClass::kNone, &i32);
-  auto* var_ptr = var;
-  auto* stmt = create<ast::VariableDeclStatement>(std::move(var));
+  auto* stmt = create<ast::VariableDeclStatement>(var);
 
   auto* body = create<ast::BlockStatement>();
-  body->append(std::move(stmt));
-  auto* func =
-      create<ast::Function>("func", ast::VariableList{}, &i32, std::move(body));
+  body->append(stmt);
+  auto* func = create<ast::Function>("func", ast::VariableList{}, &i32, body);
 
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
-  EXPECT_EQ(var_ptr->storage_class(), ast::StorageClass::kFunction);
+  EXPECT_EQ(var->storage_class(), ast::StorageClass::kFunction);
 }
 
 TEST_F(TypeDeterminerTest, StorageClass_DoesNotSetOnConst) {
@@ -2360,32 +2287,29 @@ TEST_F(TypeDeterminerTest, StorageClass_DoesNotSetOnConst) {
 
   auto* var = create<ast::Variable>("var", ast::StorageClass::kNone, &i32);
   var->set_is_const(true);
-  auto* var_ptr = var;
-  auto* stmt = create<ast::VariableDeclStatement>(std::move(var));
+  auto* stmt = create<ast::VariableDeclStatement>(var);
 
   auto* body = create<ast::BlockStatement>();
-  body->append(std::move(stmt));
-  auto* func =
-      create<ast::Function>("func", ast::VariableList{}, &i32, std::move(body));
+  body->append(stmt);
+  auto* func = create<ast::Function>("func", ast::VariableList{}, &i32, body);
 
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
-  EXPECT_EQ(var_ptr->storage_class(), ast::StorageClass::kNone);
+  EXPECT_EQ(var->storage_class(), ast::StorageClass::kNone);
 }
 
 TEST_F(TypeDeterminerTest, StorageClass_NonFunctionClassError) {
   ast::type::I32Type i32;
 
   auto* var = create<ast::Variable>("var", ast::StorageClass::kWorkgroup, &i32);
-  auto* stmt = create<ast::VariableDeclStatement>(std::move(var));
+  auto* stmt = create<ast::VariableDeclStatement>(var);
 
   auto* body = create<ast::BlockStatement>();
-  body->append(std::move(stmt));
-  auto* func =
-      create<ast::Function>("func", ast::VariableList{}, &i32, std::move(body));
+  body->append(stmt);
+  auto* func = create<ast::Function>("func", ast::VariableList{}, &i32, body);
 
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   EXPECT_FALSE(td()->Determine());
   EXPECT_EQ(td()->error(),
@@ -2501,12 +2425,12 @@ TEST_P(ImportData_SingleParamTest, Scalar) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_float_scalar());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_float_scalar());
 }
 
 TEST_P(ImportData_SingleParamTest, Vector) {
@@ -2524,17 +2448,16 @@ TEST_P(ImportData_SingleParamTest, Vector) {
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_float_vector());
-  EXPECT_EQ(ident_ptr->result_type()->AsVector()->size(), 3u);
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_float_vector());
+  EXPECT_EQ(ident->result_type()->AsVector()->size(), 3u);
 }
 
 TEST_P(ImportData_SingleParamTest, Error_Integer) {
@@ -2547,7 +2470,7 @@ TEST_P(ImportData_SingleParamTest, Error_Integer) {
       create<ast::SintLiteral>(&i32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -2561,7 +2484,7 @@ TEST_P(ImportData_SingleParamTest, Error_NoParams) {
   ast::ExpressionList params;
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -2581,7 +2504,7 @@ TEST_P(ImportData_SingleParamTest, Error_MultipleParams) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -2626,12 +2549,12 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Float_Scalar) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_float_scalar());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_float_scalar());
 }
 
 TEST_P(ImportData_SingleParam_FloatOrInt_Test, Float_Vector) {
@@ -2649,17 +2572,16 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Float_Vector) {
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_float_vector());
-  EXPECT_EQ(ident_ptr->result_type()->AsVector()->size(), 3u);
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_float_vector());
+  EXPECT_EQ(ident->result_type()->AsVector()->size(), 3u);
 }
 
 TEST_P(ImportData_SingleParam_FloatOrInt_Test, Sint_Scalar) {
@@ -2672,12 +2594,12 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Sint_Scalar) {
       create<ast::SintLiteral>(&i32, -11)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->IsI32());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->IsI32());
 }
 
 TEST_P(ImportData_SingleParam_FloatOrInt_Test, Sint_Vector) {
@@ -2695,17 +2617,16 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Sint_Vector) {
       create<ast::SintLiteral>(&i32, 3)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_signed_integer_vector());
-  EXPECT_EQ(ident_ptr->result_type()->AsVector()->size(), 3u);
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_signed_integer_vector());
+  EXPECT_EQ(ident->result_type()->AsVector()->size(), 3u);
 }
 
 TEST_P(ImportData_SingleParam_FloatOrInt_Test, Uint_Scalar) {
@@ -2718,12 +2639,12 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Uint_Scalar) {
       create<ast::UintLiteral>(&u32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->IsU32());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->IsU32());
 }
 
 TEST_P(ImportData_SingleParam_FloatOrInt_Test, Uint_Vector) {
@@ -2741,17 +2662,16 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Uint_Vector) {
       create<ast::UintLiteral>(&u32, 3.0f)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_unsigned_integer_vector());
-  EXPECT_EQ(ident_ptr->result_type()->AsVector()->size(), 3u);
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_unsigned_integer_vector());
+  EXPECT_EQ(ident->result_type()->AsVector()->size(), 3u);
 }
 
 TEST_P(ImportData_SingleParam_FloatOrInt_Test, Error_Bool) {
@@ -2764,7 +2684,7 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Error_Bool) {
       create<ast::BoolLiteral>(&bool_type, false)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -2778,7 +2698,7 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Error_NoParams) {
   ast::ExpressionList params;
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -2798,7 +2718,7 @@ TEST_P(ImportData_SingleParam_FloatOrInt_Test, Error_MultipleParams) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -2820,12 +2740,12 @@ TEST_F(TypeDeterminerTest, ImportData_Length_Scalar) {
   ASSERT_TRUE(td()->DetermineResultType(params)) << td()->error();
 
   auto* ident = create<ast::IdentifierExpression>("length");
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_float_scalar());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_float_scalar());
 }
 
 TEST_F(TypeDeterminerTest, ImportData_Length_FloatVector) {
@@ -2841,16 +2761,15 @@ TEST_F(TypeDeterminerTest, ImportData_Length_FloatVector) {
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
 
   auto* ident = create<ast::IdentifierExpression>("length");
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_float_scalar());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_float_scalar());
 }
 
 TEST_F(TypeDeterminerTest, ImportData_Length_Error_Integer) {
@@ -2861,7 +2780,7 @@ TEST_F(TypeDeterminerTest, ImportData_Length_Error_Integer) {
       create<ast::SintLiteral>(&i32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>("length");
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -2873,7 +2792,7 @@ TEST_F(TypeDeterminerTest, ImportData_Length_Error_NoParams) {
   ast::ExpressionList params;
 
   auto* ident = create<ast::IdentifierExpression>("length");
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -2891,7 +2810,7 @@ TEST_F(TypeDeterminerTest, ImportData_Length_Error_MultipleParams) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>("length");
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -2911,12 +2830,12 @@ TEST_P(ImportData_TwoParamTest, Scalar) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_float_scalar());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_float_scalar());
 }
 
 TEST_P(ImportData_TwoParamTest, Vector) {
@@ -2942,19 +2861,17 @@ TEST_P(ImportData_TwoParamTest, Vector) {
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_2)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_2));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_float_vector());
-  EXPECT_EQ(ident_ptr->result_type()->AsVector()->size(), 3u);
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_float_vector());
+  EXPECT_EQ(ident->result_type()->AsVector()->size(), 3u);
 }
 
 TEST_P(ImportData_TwoParamTest, Error_Integer) {
@@ -2969,7 +2886,7 @@ TEST_P(ImportData_TwoParamTest, Error_Integer) {
       create<ast::SintLiteral>(&i32, 2)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -2983,7 +2900,7 @@ TEST_P(ImportData_TwoParamTest, Error_NoParams) {
   ast::ExpressionList params;
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -2999,7 +2916,7 @@ TEST_P(ImportData_TwoParamTest, Error_OneParam) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -3028,13 +2945,11 @@ TEST_P(ImportData_TwoParamTest, Error_MismatchedParamCount) {
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec3, std::move(vals_2)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec3, vals_2));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -3058,11 +2973,10 @@ TEST_P(ImportData_TwoParamTest, Error_MismatchedParamType) {
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 1.0f)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -3082,7 +2996,7 @@ TEST_P(ImportData_TwoParamTest, Error_TooManyParams) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -3107,12 +3021,12 @@ TEST_F(TypeDeterminerTest, ImportData_Distance_Scalar) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>("distance");
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_float_scalar());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_float_scalar());
 }
 
 TEST_F(TypeDeterminerTest, ImportData_Distance_Vector) {
@@ -3136,18 +3050,16 @@ TEST_F(TypeDeterminerTest, ImportData_Distance_Vector) {
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_2)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_2));
 
   auto* ident = create<ast::IdentifierExpression>("distance");
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->IsF32());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->IsF32());
 }
 
 TEST_F(TypeDeterminerTest, ImportData_Distance_Error_Integer) {
@@ -3160,7 +3072,7 @@ TEST_F(TypeDeterminerTest, ImportData_Distance_Error_Integer) {
       create<ast::SintLiteral>(&i32, 2)));
 
   auto* ident = create<ast::IdentifierExpression>("distance");
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -3172,7 +3084,7 @@ TEST_F(TypeDeterminerTest, ImportData_Distance_Error_NoParams) {
   ast::ExpressionList params;
 
   auto* ident = create<ast::IdentifierExpression>("distance");
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -3186,7 +3098,7 @@ TEST_F(TypeDeterminerTest, ImportData_Distance_Error_OneParam) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>("distance");
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -3213,13 +3125,11 @@ TEST_F(TypeDeterminerTest, ImportData_Distance_Error_MismatchedParamCount) {
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec3, std::move(vals_2)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec3, vals_2));
 
   auto* ident = create<ast::IdentifierExpression>("distance");
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), "mismatched parameter types for distance");
@@ -3240,11 +3150,10 @@ TEST_F(TypeDeterminerTest, ImportData_Distance_Error_MismatchedParamType) {
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 1.0f)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
 
   auto* ident = create<ast::IdentifierExpression>("distance");
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), "mismatched parameter types for distance");
@@ -3261,7 +3170,7 @@ TEST_F(TypeDeterminerTest, ImportData_Distance_Error_TooManyParams) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>("distance");
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -3289,19 +3198,17 @@ TEST_F(TypeDeterminerTest, ImportData_Cross) {
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_2)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_2));
 
   auto* ident = create<ast::IdentifierExpression>("cross");
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_float_vector());
-  EXPECT_EQ(ident_ptr->result_type()->AsVector()->size(), 3u);
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_float_vector());
+  EXPECT_EQ(ident->result_type()->AsVector()->size(), 3u);
 }
 
 TEST_F(TypeDeterminerTest, ImportData_Cross_Error_Scalar) {
@@ -3314,7 +3221,7 @@ TEST_F(TypeDeterminerTest, ImportData_Cross_Error_Scalar) {
       create<ast::FloatLiteral>(&f32, 1.0f)));
 
   auto* ident = create<ast::IdentifierExpression>("cross");
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -3342,13 +3249,11 @@ TEST_F(TypeDeterminerTest, ImportData_Cross_Error_IntType) {
       create<ast::SintLiteral>(&i32, 3)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_2)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_2));
 
   auto* ident = create<ast::IdentifierExpression>("cross");
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -3358,7 +3263,7 @@ TEST_F(TypeDeterminerTest, ImportData_Cross_Error_IntType) {
 TEST_F(TypeDeterminerTest, ImportData_Cross_Error_MissingParams) {
   ast::ExpressionList params;
   auto* ident = create<ast::IdentifierExpression>("cross");
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -3378,11 +3283,10 @@ TEST_F(TypeDeterminerTest, ImportData_Cross_Error_TooFewParams) {
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_1)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
 
   auto* ident = create<ast::IdentifierExpression>("cross");
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -3418,15 +3322,12 @@ TEST_F(TypeDeterminerTest, ImportData_Cross_Error_TooManyParams) {
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_2)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_3)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_2));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_3));
 
   auto* ident = create<ast::IdentifierExpression>("cross");
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -3448,12 +3349,12 @@ TEST_P(ImportData_ThreeParamTest, Scalar) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_float_scalar());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_float_scalar());
 }
 
 TEST_P(ImportData_ThreeParamTest, Vector) {
@@ -3487,21 +3388,18 @@ TEST_P(ImportData_ThreeParamTest, Vector) {
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_2)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_3)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_2));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_3));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_float_vector());
-  EXPECT_EQ(ident_ptr->result_type()->AsVector()->size(), 3u);
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_float_vector());
+  EXPECT_EQ(ident->result_type()->AsVector()->size(), 3u);
 }
 
 TEST_P(ImportData_ThreeParamTest, Error_Integer) {
@@ -3518,7 +3416,7 @@ TEST_P(ImportData_ThreeParamTest, Error_Integer) {
       create<ast::SintLiteral>(&i32, 3)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -3532,7 +3430,7 @@ TEST_P(ImportData_ThreeParamTest, Error_NoParams) {
   ast::ExpressionList params;
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -3548,7 +3446,7 @@ TEST_P(ImportData_ThreeParamTest, Error_OneParam) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -3566,7 +3464,7 @@ TEST_P(ImportData_ThreeParamTest, Error_TwoParams) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -3603,15 +3501,12 @@ TEST_P(ImportData_ThreeParamTest, Error_MismatchedParamCount) {
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec3, std::move(vals_2)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec3, std::move(vals_3)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec3, vals_2));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec3, vals_3));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -3637,11 +3532,10 @@ TEST_P(ImportData_ThreeParamTest, Error_MismatchedParamType) {
       create<ast::FloatLiteral>(&f32, 1.0f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 1.0f)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -3663,7 +3557,7 @@ TEST_P(ImportData_ThreeParamTest, Error_TooManyParams) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -3695,12 +3589,12 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Float_Scalar) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_float_scalar());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_float_scalar());
 }
 
 TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Float_Vector) {
@@ -3734,21 +3628,18 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Float_Vector) {
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_2)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_3)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_2));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_3));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_float_vector());
-  EXPECT_EQ(ident_ptr->result_type()->AsVector()->size(), 3u);
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_float_vector());
+  EXPECT_EQ(ident->result_type()->AsVector()->size(), 3u);
 }
 
 TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Sint_Scalar) {
@@ -3765,12 +3656,12 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Sint_Scalar) {
       create<ast::SintLiteral>(&i32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->IsI32());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->IsI32());
 }
 
 TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Sint_Vector) {
@@ -3804,21 +3695,18 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Sint_Vector) {
       create<ast::SintLiteral>(&i32, 3)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_2)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_3)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_2));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_3));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_signed_integer_vector());
-  EXPECT_EQ(ident_ptr->result_type()->AsVector()->size(), 3u);
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_signed_integer_vector());
+  EXPECT_EQ(ident->result_type()->AsVector()->size(), 3u);
 }
 
 TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Uint_Scalar) {
@@ -3835,12 +3723,12 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Uint_Scalar) {
       create<ast::UintLiteral>(&u32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->IsU32());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->IsU32());
 }
 
 TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Uint_Vector) {
@@ -3874,21 +3762,18 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Uint_Vector) {
       create<ast::UintLiteral>(&u32, 3)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_2)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_3)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_2));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_3));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_unsigned_integer_vector());
-  EXPECT_EQ(ident_ptr->result_type()->AsVector()->size(), 3u);
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_unsigned_integer_vector());
+  EXPECT_EQ(ident->result_type()->AsVector()->size(), 3u);
 }
 
 TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Error_Bool) {
@@ -3905,7 +3790,7 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Error_Bool) {
       create<ast::BoolLiteral>(&bool_type, true)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -3919,7 +3804,7 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Error_NoParams) {
   ast::ExpressionList params;
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -3935,7 +3820,7 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Error_OneParam) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -3953,7 +3838,7 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Error_TwoParams) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -3990,15 +3875,12 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Error_MismatchedParamCount) {
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec3, std::move(vals_2)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec3, std::move(vals_3)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec3, vals_2));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec3, vals_3));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -4024,11 +3906,10 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Error_MismatchedParamType) {
       create<ast::FloatLiteral>(&f32, 1.0f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 1.0f)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -4050,7 +3931,7 @@ TEST_P(ImportData_ThreeParam_FloatOrInt_Test, Error_TooManyParams) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -4074,12 +3955,12 @@ TEST_P(ImportData_Int_SingleParamTest, Scalar) {
       create<ast::SintLiteral>(&i32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_integer_scalar());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_integer_scalar());
 }
 
 TEST_P(ImportData_Int_SingleParamTest, Vector) {
@@ -4097,17 +3978,16 @@ TEST_P(ImportData_Int_SingleParamTest, Vector) {
       create<ast::SintLiteral>(&i32, 3)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_signed_integer_vector());
-  EXPECT_EQ(ident_ptr->result_type()->AsVector()->size(), 3u);
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_signed_integer_vector());
+  EXPECT_EQ(ident->result_type()->AsVector()->size(), 3u);
 }
 
 TEST_P(ImportData_Int_SingleParamTest, Error_Float) {
@@ -4120,7 +4000,7 @@ TEST_P(ImportData_Int_SingleParamTest, Error_Float) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -4134,7 +4014,7 @@ TEST_P(ImportData_Int_SingleParamTest, Error_NoParams) {
   ast::ExpressionList params;
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -4154,7 +4034,7 @@ TEST_P(ImportData_Int_SingleParamTest, Error_MultipleParams) {
       create<ast::SintLiteral>(&i32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -4182,12 +4062,12 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Scalar_Signed) {
       create<ast::SintLiteral>(&i32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->IsI32());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->IsI32());
 }
 
 TEST_P(ImportData_FloatOrInt_TwoParamTest, Scalar_Unsigned) {
@@ -4202,12 +4082,12 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Scalar_Unsigned) {
       create<ast::UintLiteral>(&u32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->IsU32());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->IsU32());
 }
 
 TEST_P(ImportData_FloatOrInt_TwoParamTest, Scalar_Float) {
@@ -4222,12 +4102,12 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Scalar_Float) {
       create<ast::FloatLiteral>(&f32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->IsF32());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->IsF32());
 }
 
 TEST_P(ImportData_FloatOrInt_TwoParamTest, Vector_Signed) {
@@ -4253,19 +4133,17 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Vector_Signed) {
       create<ast::SintLiteral>(&i32, 3)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_2)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_2));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_signed_integer_vector());
-  EXPECT_EQ(ident_ptr->result_type()->AsVector()->size(), 3u);
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_signed_integer_vector());
+  EXPECT_EQ(ident->result_type()->AsVector()->size(), 3u);
 }
 
 TEST_P(ImportData_FloatOrInt_TwoParamTest, Vector_Unsigned) {
@@ -4291,19 +4169,17 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Vector_Unsigned) {
       create<ast::UintLiteral>(&u32, 3)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_2)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_2));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_unsigned_integer_vector());
-  EXPECT_EQ(ident_ptr->result_type()->AsVector()->size(), 3u);
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_unsigned_integer_vector());
+  EXPECT_EQ(ident->result_type()->AsVector()->size(), 3u);
 }
 
 TEST_P(ImportData_FloatOrInt_TwoParamTest, Vector_Float) {
@@ -4329,19 +4205,17 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Vector_Float) {
       create<ast::FloatLiteral>(&f32, 3)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals_2)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals_2));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->is_float_vector());
-  EXPECT_EQ(ident_ptr->result_type()->AsVector()->size(), 3u);
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->is_float_vector());
+  EXPECT_EQ(ident->result_type()->AsVector()->size(), 3u);
 }
 
 TEST_P(ImportData_FloatOrInt_TwoParamTest, Error_Bool) {
@@ -4356,7 +4230,7 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Error_Bool) {
       create<ast::BoolLiteral>(&bool_type, false)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -4370,7 +4244,7 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Error_NoParams) {
   ast::ExpressionList params;
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -4386,7 +4260,7 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Error_OneParam) {
       create<ast::SintLiteral>(&i32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -4415,13 +4289,11 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Error_MismatchedParamCount) {
       create<ast::SintLiteral>(&i32, 3)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vals_1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec3, std::move(vals_2)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vals_1));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec3, vals_2));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -4445,11 +4317,10 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Error_MismatchedParamType) {
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 1)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vals)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vals));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(),
@@ -4469,7 +4340,7 @@ TEST_P(ImportData_FloatOrInt_TwoParamTest, Error_TooManyParams) {
       create<ast::SintLiteral>(&i32, 1)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -4487,7 +4358,7 @@ TEST_F(TypeDeterminerTest, ImportData_GLSL_Determinant) {
   ast::type::MatrixType mat(&f32, 3, 3);
 
   auto* var = create<ast::Variable>("var", ast::StorageClass::kFunction, &mat);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -4496,12 +4367,12 @@ TEST_F(TypeDeterminerTest, ImportData_GLSL_Determinant) {
   params.push_back(create<ast::IdentifierExpression>("var"));
 
   auto* ident = create<ast::IdentifierExpression>("determinant");
-  auto* ident_ptr = ident;
-  ast::CallExpression call(std::move(ident), std::move(params));
+
+  ast::CallExpression call(ident, params);
 
   EXPECT_TRUE(td()->DetermineResultType(&call)) << td()->error();
-  ASSERT_NE(ident_ptr->result_type(), nullptr);
-  EXPECT_TRUE(ident_ptr->result_type()->IsF32());
+  ASSERT_NE(ident->result_type(), nullptr);
+  EXPECT_TRUE(ident->result_type()->IsF32());
 }
 
 using ImportData_Matrix_OneParam_Test =
@@ -4512,7 +4383,7 @@ TEST_P(ImportData_Matrix_OneParam_Test, Error_Float) {
   ast::type::F32Type f32;
 
   auto* var = create<ast::Variable>("var", ast::StorageClass::kFunction, &f32);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -4521,7 +4392,7 @@ TEST_P(ImportData_Matrix_OneParam_Test, Error_Float) {
   params.push_back(create<ast::IdentifierExpression>("var"));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect type for ") + param.name +
@@ -4534,7 +4405,7 @@ TEST_P(ImportData_Matrix_OneParam_Test, NoParams) {
   ast::ExpressionList params;
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -4548,7 +4419,7 @@ TEST_P(ImportData_Matrix_OneParam_Test, TooManyParams) {
   ast::type::MatrixType mat(&f32, 3, 3);
 
   auto* var = create<ast::Variable>("var", ast::StorageClass::kFunction, &mat);
-  mod()->AddGlobalVariable(std::move(var));
+  mod()->AddGlobalVariable(var);
 
   // Register the global
   ASSERT_TRUE(td()->Determine()) << td()->error();
@@ -4558,7 +4429,7 @@ TEST_P(ImportData_Matrix_OneParam_Test, TooManyParams) {
   params.push_back(create<ast::IdentifierExpression>("var"));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   EXPECT_FALSE(td()->DetermineResultType(&call));
   EXPECT_EQ(td()->error(), std::string("incorrect number of parameters for ") +
@@ -4586,27 +4457,21 @@ TEST_F(TypeDeterminerTest, Function_EntryPoints_StageDecoration) {
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
-  auto* func_b =
-      create<ast::Function>("b", std::move(params), &f32, std::move(body));
-  auto* func_b_ptr = func_b;
+  auto* func_b = create<ast::Function>("b", params, &f32, body);
 
   body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>("second"),
       create<ast::CallExpression>(create<ast::IdentifierExpression>("b"),
                                   ast::ExpressionList{})));
-  auto* func_c =
-      create<ast::Function>("c", std::move(params), &f32, std::move(body));
-  auto* func_c_ptr = func_c;
+  auto* func_c = create<ast::Function>("c", params, &f32, body);
 
   body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>("first"),
       create<ast::CallExpression>(create<ast::IdentifierExpression>("c"),
                                   ast::ExpressionList{})));
-  auto* func_a =
-      create<ast::Function>("a", std::move(params), &f32, std::move(body));
-  auto* func_a_ptr = func_a;
+  auto* func_a = create<ast::Function>("a", params, &f32, body);
 
   body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
@@ -4617,28 +4482,24 @@ TEST_F(TypeDeterminerTest, Function_EntryPoints_StageDecoration) {
       create<ast::IdentifierExpression>("call_b"),
       create<ast::CallExpression>(create<ast::IdentifierExpression>("b"),
                                   ast::ExpressionList{})));
-  auto* ep_1 =
-      create<ast::Function>("ep_1", std::move(params), &f32, std::move(body));
+  auto* ep_1 = create<ast::Function>("ep_1", params, &f32, body);
   ep_1->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  auto* ep_1_ptr = ep_1;
 
   body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>("call_c"),
       create<ast::CallExpression>(create<ast::IdentifierExpression>("c"),
                                   ast::ExpressionList{})));
-  auto* ep_2 =
-      create<ast::Function>("ep_2", std::move(params), &f32, std::move(body));
+  auto* ep_2 = create<ast::Function>("ep_2", params, &f32, body);
   ep_2->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  auto* ep_2_ptr = ep_2;
 
-  mod()->AddFunction(std::move(func_b));
-  mod()->AddFunction(std::move(func_c));
-  mod()->AddFunction(std::move(func_a));
-  mod()->AddFunction(std::move(ep_1));
-  mod()->AddFunction(std::move(ep_2));
+  mod()->AddFunction(func_b);
+  mod()->AddFunction(func_c);
+  mod()->AddFunction(func_a);
+  mod()->AddFunction(ep_1);
+  mod()->AddFunction(ep_2);
 
   mod()->AddGlobalVariable(
       create<ast::Variable>("first", ast::StorageClass::kPrivate, &f32));
@@ -4654,22 +4515,22 @@ TEST_F(TypeDeterminerTest, Function_EntryPoints_StageDecoration) {
   // Register the functions and calculate the callers
   ASSERT_TRUE(td()->Determine()) << td()->error();
 
-  const auto& b_eps = func_b_ptr->ancestor_entry_points();
+  const auto& b_eps = func_b->ancestor_entry_points();
   ASSERT_EQ(2u, b_eps.size());
   EXPECT_EQ("ep_1", b_eps[0]);
   EXPECT_EQ("ep_2", b_eps[1]);
 
-  const auto& a_eps = func_a_ptr->ancestor_entry_points();
+  const auto& a_eps = func_a->ancestor_entry_points();
   ASSERT_EQ(1u, a_eps.size());
   EXPECT_EQ("ep_1", a_eps[0]);
 
-  const auto& c_eps = func_c_ptr->ancestor_entry_points();
+  const auto& c_eps = func_c->ancestor_entry_points();
   ASSERT_EQ(2u, c_eps.size());
   EXPECT_EQ("ep_1", c_eps[0]);
   EXPECT_EQ("ep_2", c_eps[1]);
 
-  EXPECT_TRUE(ep_1_ptr->ancestor_entry_points().empty());
-  EXPECT_TRUE(ep_2_ptr->ancestor_entry_points().empty());
+  EXPECT_TRUE(ep_1->ancestor_entry_points().empty());
+  EXPECT_TRUE(ep_2->ancestor_entry_points().empty());
 }
 
 }  // namespace
diff --git a/src/validator/validator_control_block_test.cc b/src/validator/validator_control_block_test.cc
index 5f8eb86473..21f7a29d0c 100644
--- a/src/validator/validator_control_block_test.cc
+++ b/src/validator/validator_control_block_test.cc
@@ -52,12 +52,11 @@ TEST_F(ValidateControlBlockTest, SwitchSelectorExpressionNoneIntegerType_Fail) {
   ast::CaseSelectorList default_csl;
   auto* block_default = create<ast::BlockStatement>();
   ast::CaseStatementList body;
-  body.push_back(create<ast::CaseStatement>(std::move(default_csl),
-                                            std::move(block_default)));
+  body.push_back(create<ast::CaseStatement>(default_csl, block_default));
 
   auto* block = create<ast::BlockStatement>();
-  block->append(create<ast::VariableDeclStatement>(std::move(var)));
-  block->append(create<ast::SwitchStatement>(std::move(cond), std::move(body)));
+  block->append(create<ast::VariableDeclStatement>(var));
+  block->append(create<ast::SwitchStatement>(cond, body));
 
   EXPECT_TRUE(td()->DetermineStatements(block)) << td()->error();
   EXPECT_FALSE(v()->ValidateStatements(block));
@@ -80,13 +79,13 @@ TEST_F(ValidateControlBlockTest, SwitchWithoutDefault_Fail) {
   ast::CaseSelectorList csl;
   csl.push_back(create<ast::SintLiteral>(&i32, 1));
   ast::CaseStatementList body;
-  body.push_back(create<ast::CaseStatement>(std::move(csl),
-                                            create<ast::BlockStatement>()));
+  body.push_back(
+      create<ast::CaseStatement>(csl, create<ast::BlockStatement>()));
 
   auto* block = create<ast::BlockStatement>();
-  block->append(create<ast::VariableDeclStatement>(std::move(var)));
+  block->append(create<ast::VariableDeclStatement>(var));
   block->append(create<ast::SwitchStatement>(Source{Source::Location{12, 34}},
-                                             std::move(cond), std::move(body)));
+                                             cond, body));
 
   EXPECT_TRUE(td()->DetermineStatements(block)) << td()->error();
   EXPECT_FALSE(v()->ValidateStatements(block));
@@ -112,25 +111,23 @@ TEST_F(ValidateControlBlockTest, SwitchWithTwoDefault_Fail) {
 
   ast::CaseSelectorList default_csl_1;
   auto* block_default_1 = create<ast::BlockStatement>();
-  switch_body.push_back(create<ast::CaseStatement>(std::move(default_csl_1),
-                                                   std::move(block_default_1)));
+  switch_body.push_back(
+      create<ast::CaseStatement>(default_csl_1, block_default_1));
 
   ast::CaseSelectorList csl_case_1;
   csl_case_1.push_back(create<ast::SintLiteral>(&i32, 1));
   auto* block_case_1 = create<ast::BlockStatement>();
-  switch_body.push_back(create<ast::CaseStatement>(std::move(csl_case_1),
-                                                   std::move(block_case_1)));
+  switch_body.push_back(create<ast::CaseStatement>(csl_case_1, block_case_1));
 
   ast::CaseSelectorList default_csl_2;
   auto* block_default_2 = create<ast::BlockStatement>();
-  switch_body.push_back(create<ast::CaseStatement>(std::move(default_csl_2),
-                                                   std::move(block_default_2)));
+  switch_body.push_back(
+      create<ast::CaseStatement>(default_csl_2, block_default_2));
 
   auto* block = create<ast::BlockStatement>();
-  block->append(create<ast::VariableDeclStatement>(std::move(var)));
+  block->append(create<ast::VariableDeclStatement>(var));
   block->append(create<ast::SwitchStatement>(Source{Source::Location{12, 34}},
-                                             std::move(cond),
-                                             std::move(switch_body)));
+                                             cond, switch_body));
 
   EXPECT_TRUE(td()->DetermineStatements(block)) << td()->error();
   EXPECT_FALSE(v()->ValidateStatements(block));
@@ -158,18 +155,15 @@ TEST_F(ValidateControlBlockTest,
   ast::CaseSelectorList csl;
   csl.push_back(create<ast::UintLiteral>(&u32, 1));
   switch_body.push_back(create<ast::CaseStatement>(
-      Source{Source::Location{12, 34}}, std::move(csl),
-      create<ast::BlockStatement>()));
+      Source{Source::Location{12, 34}}, csl, create<ast::BlockStatement>()));
 
   ast::CaseSelectorList default_csl;
   auto* block_default = create<ast::BlockStatement>();
-  switch_body.push_back(create<ast::CaseStatement>(std::move(default_csl),
-                                                   std::move(block_default)));
+  switch_body.push_back(create<ast::CaseStatement>(default_csl, block_default));
 
   auto* block = create<ast::BlockStatement>();
-  block->append(create<ast::VariableDeclStatement>(std::move(var)));
-  block->append(
-      create<ast::SwitchStatement>(std::move(cond), std::move(switch_body)));
+  block->append(create<ast::VariableDeclStatement>(var));
+  block->append(create<ast::SwitchStatement>(cond, switch_body));
 
   EXPECT_TRUE(td()->DetermineStatements(block)) << td()->error();
   EXPECT_FALSE(v()->ValidateStatements(block));
@@ -197,18 +191,15 @@ TEST_F(ValidateControlBlockTest,
   ast::CaseSelectorList csl;
   csl.push_back(create<ast::SintLiteral>(&i32, -1));
   switch_body.push_back(create<ast::CaseStatement>(
-      Source{Source::Location{12, 34}}, std::move(csl),
-      create<ast::BlockStatement>()));
+      Source{Source::Location{12, 34}}, csl, create<ast::BlockStatement>()));
 
   ast::CaseSelectorList default_csl;
   auto* block_default = create<ast::BlockStatement>();
-  switch_body.push_back(create<ast::CaseStatement>(std::move(default_csl),
-                                                   std::move(block_default)));
+  switch_body.push_back(create<ast::CaseStatement>(default_csl, block_default));
 
   auto* block = create<ast::BlockStatement>();
-  block->append(create<ast::VariableDeclStatement>(std::move(var)));
-  block->append(
-      create<ast::SwitchStatement>(std::move(cond), std::move(switch_body)));
+  block->append(create<ast::VariableDeclStatement>(var));
+  block->append(create<ast::SwitchStatement>(cond, switch_body));
 
   EXPECT_TRUE(td()->DetermineStatements(block)) << td()->error();
   EXPECT_FALSE(v()->ValidateStatements(block));
@@ -234,25 +225,22 @@ TEST_F(ValidateControlBlockTest, NonUniqueCaseSelectorValueUint_Fail) {
 
   ast::CaseSelectorList csl_1;
   csl_1.push_back(create<ast::UintLiteral>(&u32, 0));
-  switch_body.push_back(create<ast::CaseStatement>(
-      std::move(csl_1), create<ast::BlockStatement>()));
+  switch_body.push_back(
+      create<ast::CaseStatement>(csl_1, create<ast::BlockStatement>()));
 
   ast::CaseSelectorList csl_2;
   csl_2.push_back(create<ast::UintLiteral>(&u32, 2));
   csl_2.push_back(create<ast::UintLiteral>(&u32, 2));
   switch_body.push_back(create<ast::CaseStatement>(
-      Source{Source::Location{12, 34}}, std::move(csl_2),
-      create<ast::BlockStatement>()));
+      Source{Source::Location{12, 34}}, csl_2, create<ast::BlockStatement>()));
 
   ast::CaseSelectorList default_csl;
   auto* block_default = create<ast::BlockStatement>();
-  switch_body.push_back(create<ast::CaseStatement>(std::move(default_csl),
-                                                   std::move(block_default)));
+  switch_body.push_back(create<ast::CaseStatement>(default_csl, block_default));
 
   auto* block = create<ast::BlockStatement>();
-  block->append(create<ast::VariableDeclStatement>(std::move(var)));
-  block->append(
-      create<ast::SwitchStatement>(std::move(cond), std::move(switch_body)));
+  block->append(create<ast::VariableDeclStatement>(var));
+  block->append(create<ast::SwitchStatement>(cond, switch_body));
 
   EXPECT_TRUE(td()->DetermineStatements(block)) << td()->error();
   EXPECT_FALSE(v()->ValidateStatements(block));
@@ -278,8 +266,8 @@ TEST_F(ValidateControlBlockTest, NonUniqueCaseSelectorValueSint_Fail) {
 
   ast::CaseSelectorList csl_1;
   csl_1.push_back(create<ast::SintLiteral>(&i32, 10));
-  switch_body.push_back(create<ast::CaseStatement>(
-      std::move(csl_1), create<ast::BlockStatement>()));
+  switch_body.push_back(
+      create<ast::CaseStatement>(csl_1, create<ast::BlockStatement>()));
 
   ast::CaseSelectorList csl_2;
   csl_2.push_back(create<ast::SintLiteral>(&i32, 0));
@@ -287,18 +275,15 @@ TEST_F(ValidateControlBlockTest, NonUniqueCaseSelectorValueSint_Fail) {
   csl_2.push_back(create<ast::SintLiteral>(&i32, 2));
   csl_2.push_back(create<ast::SintLiteral>(&i32, 10));
   switch_body.push_back(create<ast::CaseStatement>(
-      Source{Source::Location{12, 34}}, std::move(csl_2),
-      create<ast::BlockStatement>()));
+      Source{Source::Location{12, 34}}, csl_2, create<ast::BlockStatement>()));
 
   ast::CaseSelectorList default_csl;
   auto* block_default = create<ast::BlockStatement>();
-  switch_body.push_back(create<ast::CaseStatement>(std::move(default_csl),
-                                                   std::move(block_default)));
+  switch_body.push_back(create<ast::CaseStatement>(default_csl, block_default));
 
   auto* block = create<ast::BlockStatement>();
-  block->append(create<ast::VariableDeclStatement>(std::move(var)));
-  block->append(
-      create<ast::SwitchStatement>(std::move(cond), std::move(switch_body)));
+  block->append(create<ast::VariableDeclStatement>(var));
+  block->append(create<ast::SwitchStatement>(cond, switch_body));
 
   EXPECT_TRUE(td()->DetermineStatements(block)) << td()->error();
   EXPECT_FALSE(v()->ValidateStatements(block));
@@ -323,12 +308,11 @@ TEST_F(ValidateControlBlockTest, LastClauseLastStatementIsFallthrough_Fail) {
   block_default->append(
       create<ast::FallthroughStatement>(Source{Source::Location{12, 34}}));
   ast::CaseStatementList body;
-  body.push_back(create<ast::CaseStatement>(std::move(default_csl),
-                                            std::move(block_default)));
+  body.push_back(create<ast::CaseStatement>(default_csl, block_default));
 
   auto* block = create<ast::BlockStatement>();
-  block->append(create<ast::VariableDeclStatement>(std::move(var)));
-  block->append(create<ast::SwitchStatement>(std::move(cond), std::move(body)));
+  block->append(create<ast::VariableDeclStatement>(var));
+  block->append(create<ast::SwitchStatement>(cond, body));
 
   EXPECT_TRUE(td()->DetermineStatements(block)) << td()->error();
   EXPECT_FALSE(v()->ValidateStatements(block));
@@ -353,17 +337,15 @@ TEST_F(ValidateControlBlockTest, SwitchCase_Pass) {
   auto* block_default = create<ast::BlockStatement>();
   ast::CaseStatementList body;
   body.push_back(create<ast::CaseStatement>(Source{Source::Location{12, 34}},
-                                            std::move(default_csl),
-                                            std::move(block_default)));
+                                            default_csl, block_default));
   ast::CaseSelectorList case_csl;
   case_csl.push_back(create<ast::SintLiteral>(&i32, 5));
   auto* block_case = create<ast::BlockStatement>();
-  body.push_back(
-      create<ast::CaseStatement>(std::move(case_csl), std::move(block_case)));
+  body.push_back(create<ast::CaseStatement>(case_csl, block_case));
 
   auto* block = create<ast::BlockStatement>();
-  block->append(create<ast::VariableDeclStatement>(std::move(var)));
-  block->append(create<ast::SwitchStatement>(std::move(cond), std::move(body)));
+  block->append(create<ast::VariableDeclStatement>(var));
+  block->append(create<ast::SwitchStatement>(cond, body));
 
   EXPECT_TRUE(td()->DetermineStatements(block)) << td()->error();
   EXPECT_TRUE(v()->ValidateStatements(block)) << v()->error();
@@ -388,12 +370,11 @@ TEST_F(ValidateControlBlockTest, SwitchCaseAlias_Pass) {
   auto* block_default = create<ast::BlockStatement>();
   ast::CaseStatementList body;
   body.push_back(create<ast::CaseStatement>(Source{Source::Location{12, 34}},
-                                            std::move(default_csl),
-                                            std::move(block_default)));
+                                            default_csl, block_default));
 
   auto* block = create<ast::BlockStatement>();
-  block->append(create<ast::VariableDeclStatement>(std::move(var)));
-  block->append(create<ast::SwitchStatement>(std::move(cond), std::move(body)));
+  block->append(create<ast::VariableDeclStatement>(var));
+  block->append(create<ast::SwitchStatement>(cond, body));
 
   mod()->AddConstructedType(&my_int);
 
diff --git a/src/validator/validator_function_test.cc b/src/validator/validator_function_test.cc
index 7c431a0d01..6271fe3850 100644
--- a/src/validator/validator_function_test.cc
+++ b/src/validator/validator_function_test.cc
@@ -46,13 +46,12 @@ TEST_F(ValidateFunctionTest, VoidFunctionEndWithoutReturnStatement_Pass) {
   ast::VariableList params;
   ast::type::VoidType void_type;
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
-  auto* func =
-      create<ast::Function>(Source{Source::Location{12, 34}}, "func",
-                            std::move(params), &void_type, std::move(body));
+  body->append(create<ast::VariableDeclStatement>(var));
+  auto* func = create<ast::Function>(Source{Source::Location{12, 34}}, "func",
+                                     params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_TRUE(v()->Validate(mod()));
@@ -64,12 +63,12 @@ TEST_F(ValidateFunctionTest,
   // fn func -> void {}
   ast::type::VoidType void_type;
   ast::VariableList params;
-  auto* func = create<ast::Function>(Source{Source::Location{12, 34}}, "func",
-                                     std::move(params), &void_type,
-                                     create<ast::BlockStatement>());
+  auto* func =
+      create<ast::Function>(Source{Source::Location{12, 34}}, "func", params,
+                            &void_type, create<ast::BlockStatement>());
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_TRUE(v()->Validate(mod()));
@@ -86,10 +85,10 @@ TEST_F(ValidateFunctionTest, FunctionEndWithoutReturnStatement_Fail) {
   ast::VariableList params;
   ast::type::VoidType void_type;
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   auto* func = create<ast::Function>(Source{Source::Location{12, 34}}, "func",
-                                     std::move(params), &i32, std::move(body));
-  mod()->AddFunction(std::move(func));
+                                     params, &i32, body);
+  mod()->AddFunction(func);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_FALSE(v()->Validate(mod()));
@@ -103,10 +102,10 @@ TEST_F(ValidateFunctionTest, FunctionEndWithoutReturnStatementEmptyBody_Fail) {
   ast::type::VoidType void_type;
   ast::type::I32Type i32;
   ast::VariableList params;
-  auto* func = create<ast::Function>(Source{Source::Location{12, 34}}, "func",
-                                     std::move(params), &i32,
-                                     create<ast::BlockStatement>());
-  mod()->AddFunction(std::move(func));
+  auto* func =
+      create<ast::Function>(Source{Source::Location{12, 34}}, "func", params,
+                            &i32, create<ast::BlockStatement>());
+  mod()->AddFunction(func);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_FALSE(v()->Validate(mod()));
@@ -123,11 +122,10 @@ TEST_F(ValidateFunctionTest, FunctionTypeMustMatchReturnStatementType_Pass) {
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("func", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("func", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   EXPECT_TRUE(td()->DetermineFunctions(mod()->functions())) << td()->error();
   EXPECT_TRUE(v()->ValidateFunctions(mod()->functions())) << v()->error();
@@ -143,10 +141,9 @@ TEST_F(ValidateFunctionTest, FunctionTypeMustMatchReturnStatementType_fail) {
       create<ast::SintLiteral>(&i32, 2));
 
   body->append(create<ast::ReturnStatement>(Source{Source::Location{12, 34}},
-                                            std::move(return_expr)));
-  auto* func = create<ast::Function>("func", std::move(params), &void_type,
-                                     std::move(body));
-  mod()->AddFunction(std::move(func));
+                                            return_expr));
+  auto* func = create<ast::Function>("func", params, &void_type, body);
+  mod()->AddFunction(func);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_FALSE(v()->Validate(mod()));
@@ -166,10 +163,9 @@ TEST_F(ValidateFunctionTest, FunctionTypeMustMatchReturnStatementTypeF32_fail) {
       create<ast::SintLiteral>(&i32, 2));
 
   body->append(create<ast::ReturnStatement>(Source{Source::Location{12, 34}},
-                                            std::move(return_expr)));
-  auto* func =
-      create<ast::Function>("func", std::move(params), &f32, std::move(body));
-  mod()->AddFunction(std::move(func));
+                                            return_expr));
+  auto* func = create<ast::Function>("func", params, &f32, body);
+  mod()->AddFunction(func);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_FALSE(v()->Validate(mod()));
@@ -190,22 +186,20 @@ TEST_F(ValidateFunctionTest, FunctionNamesMustBeUnique_fail) {
   auto* return_expr = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
 
-  body->append(create<ast::ReturnStatement>(std::move(return_expr)));
-  auto* func =
-      create<ast::Function>("func", std::move(params), &i32, std::move(body));
+  body->append(create<ast::ReturnStatement>(return_expr));
+  auto* func = create<ast::Function>("func", params, &i32, body);
 
   ast::VariableList params_copy;
   auto* body_copy = create<ast::BlockStatement>();
   auto* return_expr_copy = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
 
-  body_copy->append(create<ast::ReturnStatement>(std::move(return_expr_copy)));
-  auto* func_copy =
-      create<ast::Function>(Source{Source::Location{12, 34}}, "func",
-                            std::move(params_copy), &i32, std::move(body_copy));
+  body_copy->append(create<ast::ReturnStatement>(return_expr_copy));
+  auto* func_copy = create<ast::Function>(Source{Source::Location{12, 34}},
+                                          "func", params_copy, &i32, body_copy);
 
-  mod()->AddFunction(std::move(func));
-  mod()->AddFunction(std::move(func_copy));
+  mod()->AddFunction(func);
+  mod()->AddFunction(func_copy);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_FALSE(v()->Validate(mod()));
@@ -220,14 +214,13 @@ TEST_F(ValidateFunctionTest, RecursionIsNotAllowed_Fail) {
   ast::ExpressionList call_params;
   auto* call_expr = create<ast::CallExpression>(
       Source{Source::Location{12, 34}},
-      create<ast::IdentifierExpression>("func"), std::move(call_params));
+      create<ast::IdentifierExpression>("func"), call_params);
   ast::VariableList params0;
   auto* body0 = create<ast::BlockStatement>();
-  body0->append(create<ast::CallStatement>(std::move(call_expr)));
+  body0->append(create<ast::CallStatement>(call_expr));
   body0->append(create<ast::ReturnStatement>());
-  auto* func0 =
-      create<ast::Function>("func", std::move(params0), &f32, std::move(body0));
-  mod()->AddFunction(std::move(func0));
+  auto* func0 = create<ast::Function>("func", params0, &f32, body0);
+  mod()->AddFunction(func0);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_FALSE(v()->Validate(mod())) << v()->error();
@@ -241,18 +234,17 @@ TEST_F(ValidateFunctionTest, RecursionIsNotAllowedExpr_Fail) {
   ast::ExpressionList call_params;
   auto* call_expr = create<ast::CallExpression>(
       Source{Source::Location{12, 34}},
-      create<ast::IdentifierExpression>("func"), std::move(call_params));
-  var->set_constructor(std::move(call_expr));
+      create<ast::IdentifierExpression>("func"), call_params);
+  var->set_constructor(call_expr);
   ast::VariableList params0;
   auto* body0 = create<ast::BlockStatement>();
-  body0->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body0->append(create<ast::VariableDeclStatement>(var));
   auto* return_expr = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
 
-  body0->append(create<ast::ReturnStatement>(std::move(return_expr)));
-  auto* func0 =
-      create<ast::Function>("func", std::move(params0), &i32, std::move(body0));
-  mod()->AddFunction(std::move(func0));
+  body0->append(create<ast::ReturnStatement>(return_expr));
+  auto* func0 = create<ast::Function>("func", params0, &i32, body0);
+  mod()->AddFunction(func0);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_FALSE(v()->Validate(mod())) << v()->error();
@@ -268,14 +260,13 @@ TEST_F(ValidateFunctionTest, Function_WithPipelineStage_NotVoid_Fail) {
       create<ast::SintLiteral>(&i32, 0));
 
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::ReturnStatement>(std::move(return_expr)));
-  auto* func =
-      create<ast::Function>(Source{Source::Location{12, 34}}, "vtx_main",
-                            std::move(params), &i32, std::move(body));
+  body->append(create<ast::ReturnStatement>(return_expr));
+  auto* func = create<ast::Function>(Source{Source::Location{12, 34}},
+                                     "vtx_main", params, &i32, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
 
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_FALSE(v()->Validate(mod()));
   EXPECT_EQ(v()->error(),
@@ -291,13 +282,12 @@ TEST_F(ValidateFunctionTest, Function_WithPipelineStage_WithParams_Fail) {
   params.push_back(create<ast::Variable>("a", ast::StorageClass::kNone, &i32));
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
-  auto* func =
-      create<ast::Function>(Source{Source::Location{12, 34}}, "vtx_func",
-                            std::move(params), &void_type, std::move(body));
+  auto* func = create<ast::Function>(Source{Source::Location{12, 34}},
+                                     "vtx_func", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
 
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_FALSE(v()->Validate(mod()));
   EXPECT_EQ(v()->error(),
@@ -313,14 +303,13 @@ TEST_F(ValidateFunctionTest, PipelineStage_MustBeUnique_Fail) {
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
-  auto* func =
-      create<ast::Function>(Source{Source::Location{12, 34}}, "main",
-                            std::move(params), &void_type, std::move(body));
+  auto* func = create<ast::Function>(Source{Source::Location{12, 34}}, "main",
+                                     params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_FALSE(v()->Validate(mod()));
   EXPECT_EQ(
@@ -335,11 +324,10 @@ TEST_F(ValidateFunctionTest, OnePipelineStageFunctionMustBePresent_Pass) {
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("vtx_func", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("vtx_func", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_TRUE(v()->Validate(mod())) << v()->error();
@@ -351,9 +339,8 @@ TEST_F(ValidateFunctionTest, OnePipelineStageFunctionMustBePresent_Fail) {
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("vtx_func", std::move(params), &void_type,
-                                     std::move(body));
-  mod()->AddFunction(std::move(func));
+  auto* func = create<ast::Function>("vtx_func", params, &void_type, body);
+  mod()->AddFunction(func);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_FALSE(v()->Validate(mod()));
diff --git a/src/validator/validator_impl.cc b/src/validator/validator_impl.cc
index 9edaf501e6..eccdde60c8 100644
--- a/src/validator/validator_impl.cc
+++ b/src/validator/validator_impl.cc
@@ -271,21 +271,19 @@ bool ValidatorImpl::ValidateSwitch(const ast::SwitchStatement* s) {
     }
 
     for (auto* selector : case_stmt->selectors()) {
-      auto* selector_ptr = selector;
-      if (cond_type != selector_ptr->type()) {
+      if (cond_type != selector->type()) {
         set_error(case_stmt->source(),
                   "v-0026: the case selector values must have the same "
                   "type as the selector expression.");
         return false;
       }
 
-      auto v = static_cast<int32_t>(selector_ptr->type()->IsU32()
-                                        ? selector_ptr->AsUint()->value()
-                                        : selector_ptr->AsSint()->value());
+      auto v = static_cast<int32_t>(selector->type()->IsU32()
+                                        ? selector->AsUint()->value()
+                                        : selector->AsSint()->value());
       if (selector_set.count(v)) {
-        auto v_str = selector_ptr->type()->IsU32()
-                         ? selector_ptr->AsUint()->to_str()
-                         : selector_ptr->AsSint()->to_str();
+        auto v_str = selector->type()->IsU32() ? selector->AsUint()->to_str()
+                                               : selector->AsSint()->to_str();
         set_error(case_stmt->source(),
                   "v-0027: a literal value must not appear more than once in "
                   "the case selectors for a switch statement: '" +
diff --git a/src/validator/validator_test.cc b/src/validator/validator_test.cc
index 6b0b688167..8b80ab3456 100644
--- a/src/validator/validator_test.cc
+++ b/src/validator/validator_test.cc
@@ -67,8 +67,7 @@ TEST_F(ValidatorTest, DISABLED_AssignToScalar_Fail) {
   auto* lhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 1));
   auto* rhs = create<ast::IdentifierExpression>("my_var");
-  ast::AssignmentStatement assign(Source{Source::Location{12, 34}},
-                                  std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement assign(Source{Source::Location{12, 34}}, lhs, rhs);
 
   // TODO(sarahM0): Invalidate assignment to scalar.
   ASSERT_TRUE(v()->has_error());
@@ -85,7 +84,7 @@ TEST_F(ValidatorTest, UsingUndefinedVariable_Fail) {
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
   auto* assign = create<ast::AssignmentStatement>(
-      Source{Source::Location{12, 34}}, std::move(lhs), std::move(rhs));
+      Source{Source::Location{12, 34}}, lhs, rhs);
 
   EXPECT_FALSE(td()->DetermineResultType(assign));
   EXPECT_EQ(td()->error(),
@@ -105,7 +104,7 @@ TEST_F(ValidatorTest, UsingUndefinedVariableInBlockStatement_Fail) {
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
-      Source{Source::Location{12, 34}}, std::move(lhs), std::move(rhs)));
+      Source{Source::Location{12, 34}}, lhs, rhs));
 
   EXPECT_FALSE(td()->DetermineStatements(body));
   EXPECT_EQ(td()->error(),
@@ -121,17 +120,14 @@ TEST_F(ValidatorTest, AssignCompatibleTypes_Pass) {
       create<ast::SintLiteral>(&i32, 2)));
 
   auto* lhs = create<ast::IdentifierExpression>("a");
-  auto* lhs_ptr = lhs;
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
-  auto* rhs_ptr = rhs;
 
-  ast::AssignmentStatement assign(Source{Source::Location{12, 34}},
-                                  std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement assign(Source{Source::Location{12, 34}}, lhs, rhs);
   td()->RegisterVariableForTesting(var);
   EXPECT_TRUE(td()->DetermineResultType(&assign)) << td()->error();
-  ASSERT_NE(lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(rhs_ptr->result_type(), nullptr);
+  ASSERT_NE(lhs->result_type(), nullptr);
+  ASSERT_NE(rhs->result_type(), nullptr);
   EXPECT_TRUE(v()->ValidateResultTypes(&assign));
 }
 
@@ -147,17 +143,14 @@ TEST_F(ValidatorTest, AssignIncompatibleTypes_Fail) {
   var->set_constructor(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2)));
   auto* lhs = create<ast::IdentifierExpression>("a");
-  auto* lhs_ptr = lhs;
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.3f));
-  auto* rhs_ptr = rhs;
 
-  ast::AssignmentStatement assign(Source{Source::Location{12, 34}},
-                                  std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement assign(Source{Source::Location{12, 34}}, lhs, rhs);
   td()->RegisterVariableForTesting(var);
   EXPECT_TRUE(td()->DetermineResultType(&assign)) << td()->error();
-  ASSERT_NE(lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(rhs_ptr->result_type(), nullptr);
+  ASSERT_NE(lhs->result_type(), nullptr);
+  ASSERT_NE(rhs->result_type(), nullptr);
 
   EXPECT_FALSE(v()->ValidateResultTypes(&assign));
   ASSERT_TRUE(v()->has_error());
@@ -177,19 +170,17 @@ TEST_F(ValidatorTest, AssignCompatibleTypesInBlockStatement_Pass) {
       create<ast::SintLiteral>(&i32, 2)));
 
   auto* lhs = create<ast::IdentifierExpression>("a");
-  auto* lhs_ptr = lhs;
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
-  auto* rhs_ptr = rhs;
 
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::AssignmentStatement>(
-      Source{Source::Location{12, 34}}, std::move(lhs), std::move(rhs)));
+      Source{Source::Location{12, 34}}, lhs, rhs));
 
   EXPECT_TRUE(td()->DetermineStatements(body)) << td()->error();
-  ASSERT_NE(lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(rhs_ptr->result_type(), nullptr);
+  ASSERT_NE(lhs->result_type(), nullptr);
+  ASSERT_NE(rhs->result_type(), nullptr);
 
   EXPECT_TRUE(v()->ValidateStatements(body)) << v()->error();
 }
@@ -206,19 +197,17 @@ TEST_F(ValidatorTest, AssignIncompatibleTypesInBlockStatement_Fail) {
   var->set_constructor(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2)));
   auto* lhs = create<ast::IdentifierExpression>("a");
-  auto* lhs_ptr = lhs;
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.3f));
-  auto* rhs_ptr = rhs;
 
   ast::BlockStatement block;
-  block.append(create<ast::VariableDeclStatement>(std::move(var)));
+  block.append(create<ast::VariableDeclStatement>(var));
   block.append(create<ast::AssignmentStatement>(
-      Source{Source::Location{12, 34}}, std::move(lhs), std::move(rhs)));
+      Source{Source::Location{12, 34}}, lhs, rhs));
 
   EXPECT_TRUE(td()->DetermineStatements(&block)) << td()->error();
-  ASSERT_NE(lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(rhs_ptr->result_type(), nullptr);
+  ASSERT_NE(lhs->result_type(), nullptr);
+  ASSERT_NE(rhs->result_type(), nullptr);
 
   EXPECT_FALSE(v()->ValidateStatements(&block));
   ASSERT_TRUE(v()->has_error());
@@ -233,7 +222,7 @@ TEST_F(ValidatorTest, GlobalVariableWithStorageClass_Pass) {
   auto* global_var =
       create<ast::Variable>(Source{Source::Location{12, 34}}, "global_var",
                             ast::StorageClass::kInput, &f32);
-  mod()->AddGlobalVariable(std::move(global_var));
+  mod()->AddGlobalVariable(global_var);
   EXPECT_TRUE(v()->ValidateGlobalVariables(mod()->global_variables()))
       << v()->error();
 }
@@ -244,7 +233,7 @@ TEST_F(ValidatorTest, GlobalVariableNoStorageClass_Fail) {
   auto* global_var =
       create<ast::Variable>(Source{Source::Location{12, 34}}, "global_var",
                             ast::StorageClass::kNone, &f32);
-  mod()->AddGlobalVariable(std::move(global_var));
+  mod()->AddGlobalVariable(global_var);
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_FALSE(v()->Validate(mod()));
   EXPECT_EQ(v()->error(),
@@ -258,7 +247,7 @@ TEST_F(ValidatorTest, GlobalConstantWithStorageClass_Fail) {
                             ast::StorageClass::kInput, &f32);
   global_var->set_is_const(true);
 
-  mod()->AddGlobalVariable(std::move(global_var));
+  mod()->AddGlobalVariable(global_var);
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_FALSE(v()->Validate(mod()));
   EXPECT_EQ(
@@ -274,7 +263,7 @@ TEST_F(ValidatorTest, GlobalConstNoStorageClass_Pass) {
                             ast::StorageClass::kNone, &f32);
   global_var->set_is_const(true);
 
-  mod()->AddGlobalVariable(std::move(global_var));
+  mod()->AddGlobalVariable(global_var);
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_FALSE(v()->Validate(mod())) << v()->error();
 }
@@ -289,7 +278,7 @@ TEST_F(ValidatorTest, UsingUndefinedVariableGlobalVariable_Fail) {
       create<ast::Variable>("global_var", ast::StorageClass::kPrivate, &f32);
   global_var->set_constructor(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.1)));
-  mod()->AddGlobalVariable(std::move(global_var));
+  mod()->AddGlobalVariable(global_var);
 
   auto* lhs = create<ast::IdentifierExpression>(
       Source{Source::Location{12, 34}}, "not_global_var");
@@ -299,11 +288,10 @@ TEST_F(ValidatorTest, UsingUndefinedVariableGlobalVariable_Fail) {
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
-      Source{Source::Location{12, 34}}, std::move(lhs), std::move(rhs)));
+      Source{Source::Location{12, 34}}, lhs, rhs));
 
-  auto* func = create<ast::Function>("my_func", std::move(params), &f32,
-                                     std::move(body));
-  mod()->AddFunction(std::move(func));
+  auto* func = create<ast::Function>("my_func", params, &f32, body);
+  mod()->AddFunction(func);
 
   EXPECT_FALSE(v()->Validate(mod()));
   EXPECT_EQ(v()->error(), "12:34: v-0006: 'not_global_var' is not declared");
@@ -322,7 +310,7 @@ TEST_F(ValidatorTest, UsingUndefinedVariableGlobalVariable_Pass) {
       create<ast::Variable>("global_var", ast::StorageClass::kPrivate, &f32);
   global_var->set_constructor(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.1)));
-  mod()->AddGlobalVariable(std::move(global_var));
+  mod()->AddGlobalVariable(global_var);
 
   auto* lhs = create<ast::IdentifierExpression>("global_var");
   auto* rhs = create<ast::ScalarConstructorExpression>(
@@ -332,13 +320,12 @@ TEST_F(ValidatorTest, UsingUndefinedVariableGlobalVariable_Pass) {
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
-      Source{Source::Location{12, 34}}, std::move(lhs), std::move(rhs)));
+      Source{Source::Location{12, 34}}, lhs, rhs));
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("my_func", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("my_func", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  mod()->AddFunction(std::move(func));
+  mod()->AddFunction(func);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_TRUE(v()->Validate(mod())) << v()->error();
@@ -358,24 +345,21 @@ TEST_F(ValidatorTest, UsingUndefinedVariableInnerScope_Fail) {
   auto* cond = create<ast::ScalarConstructorExpression>(
       create<ast::BoolLiteral>(&bool_type, true));
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
 
   auto* lhs =
       create<ast::IdentifierExpression>(Source{Source::Location{12, 34}}, "a");
-  auto* lhs_ptr = lhs;
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.14f));
-  auto* rhs_ptr = rhs;
 
   auto* outer_body = create<ast::BlockStatement>();
-  outer_body->append(
-      create<ast::IfStatement>(std::move(cond), std::move(body)));
+  outer_body->append(create<ast::IfStatement>(cond, body));
   outer_body->append(create<ast::AssignmentStatement>(
-      Source{Source::Location{12, 34}}, std::move(lhs), std::move(rhs)));
+      Source{Source::Location{12, 34}}, lhs, rhs));
 
   EXPECT_TRUE(td()->DetermineStatements(outer_body)) << td()->error();
-  ASSERT_NE(lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(rhs_ptr->result_type(), nullptr);
+  ASSERT_NE(lhs->result_type(), nullptr);
+  ASSERT_NE(rhs->result_type(), nullptr);
   EXPECT_FALSE(v()->ValidateStatements(outer_body));
   EXPECT_EQ(v()->error(), "12:34: v-0006: 'a' is not declared");
 }
@@ -392,24 +376,22 @@ TEST_F(ValidatorTest, UsingUndefinedVariableOuterScope_Pass) {
 
   auto* lhs =
       create<ast::IdentifierExpression>(Source{Source::Location{12, 34}}, "a");
-  auto* lhs_ptr = lhs;
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.14f));
-  auto* rhs_ptr = rhs;
+
   ast::type::BoolType bool_type;
   auto* cond = create<ast::ScalarConstructorExpression>(
       create<ast::BoolLiteral>(&bool_type, true));
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::AssignmentStatement>(
-      Source{Source::Location{12, 34}}, std::move(lhs), std::move(rhs)));
+      Source{Source::Location{12, 34}}, lhs, rhs));
 
   auto* outer_body = create<ast::BlockStatement>();
-  outer_body->append(create<ast::VariableDeclStatement>(std::move(var)));
-  outer_body->append(
-      create<ast::IfStatement>(std::move(cond), std::move(body)));
+  outer_body->append(create<ast::VariableDeclStatement>(var));
+  outer_body->append(create<ast::IfStatement>(cond, body));
   EXPECT_TRUE(td()->DetermineStatements(outer_body)) << td()->error();
-  ASSERT_NE(lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(rhs_ptr->result_type(), nullptr);
+  ASSERT_NE(lhs->result_type(), nullptr);
+  ASSERT_NE(rhs->result_type(), nullptr);
   EXPECT_TRUE(v()->ValidateStatements(outer_body)) << v()->error();
 }
 
@@ -422,14 +404,14 @@ TEST_F(ValidatorTest, GlobalVariableUnique_Pass) {
       create<ast::Variable>("global_var0", ast::StorageClass::kPrivate, &f32);
   var0->set_constructor(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 0.1)));
-  mod()->AddGlobalVariable(std::move(var0));
+  mod()->AddGlobalVariable(var0);
 
   auto* var1 =
       create<ast::Variable>(Source{Source::Location{12, 34}}, "global_var1",
                             ast::StorageClass::kPrivate, &f32);
   var1->set_constructor(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 0)));
-  mod()->AddGlobalVariable(std::move(var1));
+  mod()->AddGlobalVariable(var1);
 
   EXPECT_TRUE(v()->ValidateGlobalVariables(mod()->global_variables()))
       << v()->error();
@@ -444,14 +426,14 @@ TEST_F(ValidatorTest, GlobalVariableNotUnique_Fail) {
       create<ast::Variable>("global_var", ast::StorageClass::kPrivate, &f32);
   var0->set_constructor(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 0.1)));
-  mod()->AddGlobalVariable(std::move(var0));
+  mod()->AddGlobalVariable(var0);
 
   auto* var1 =
       create<ast::Variable>(Source{Source::Location{12, 34}}, "global_var",
                             ast::StorageClass::kPrivate, &f32);
   var1->set_constructor(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 0)));
-  mod()->AddGlobalVariable(std::move(var1));
+  mod()->AddGlobalVariable(var1);
 
   EXPECT_FALSE(v()->ValidateGlobalVariables(mod()->global_variables()));
   EXPECT_EQ(v()->error(),
@@ -470,19 +452,17 @@ TEST_F(ValidatorTest, AssignToConstant_Fail) {
   var->set_is_const(true);
 
   auto* lhs = create<ast::IdentifierExpression>("a");
-  auto* lhs_ptr = lhs;
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
-  auto* rhs_ptr = rhs;
 
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::AssignmentStatement>(
-      Source{Source::Location{12, 34}}, std::move(lhs), std::move(rhs)));
+      Source{Source::Location{12, 34}}, lhs, rhs));
 
   EXPECT_TRUE(td()->DetermineStatements(body)) << td()->error();
-  ASSERT_NE(lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(rhs_ptr->result_type(), nullptr);
+  ASSERT_NE(lhs->result_type(), nullptr);
+  ASSERT_NE(rhs->result_type(), nullptr);
 
   EXPECT_FALSE(v()->ValidateStatements(body));
   EXPECT_EQ(v()->error(), "12:34: v-0021: cannot re-assign a constant: 'a'");
@@ -501,7 +481,7 @@ TEST_F(ValidatorTest, GlobalVariableFunctionVariableNotUnique_Fail) {
       create<ast::Variable>("a", ast::StorageClass::kPrivate, &f32);
   global_var->set_constructor(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.1)));
-  mod()->AddGlobalVariable(std::move(global_var));
+  mod()->AddGlobalVariable(global_var);
 
   auto* var = create<ast::Variable>("a", ast::StorageClass::kNone, &f32);
   var->set_constructor(create<ast::ScalarConstructorExpression>(
@@ -509,14 +489,13 @@ TEST_F(ValidatorTest, GlobalVariableFunctionVariableNotUnique_Fail) {
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::VariableDeclStatement>(
-      Source{Source::Location{12, 34}}, std::move(var)));
-  auto* func = create<ast::Function>("my_func", std::move(params), &void_type,
-                                     std::move(body));
-  auto* func_ptr = func;
-  mod()->AddFunction(std::move(func));
+      Source{Source::Location{12, 34}}, var));
+  auto* func = create<ast::Function>("my_func", params, &void_type, body);
+
+  mod()->AddFunction(func);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
-  EXPECT_TRUE(td()->DetermineFunction(func_ptr)) << td()->error();
+  EXPECT_TRUE(td()->DetermineFunction(func)) << td()->error();
   EXPECT_FALSE(v()->Validate(mod())) << v()->error();
   EXPECT_EQ(v()->error(), "12:34: v-0013: redeclared identifier 'a'");
 }
@@ -540,16 +519,15 @@ TEST_F(ValidatorTest, RedeclaredIndentifier_Fail) {
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::VariableDeclStatement>(
-      Source{Source::Location{12, 34}}, std::move(var_a_float)));
-  auto* func = create<ast::Function>("my_func", std::move(params), &void_type,
-                                     std::move(body));
-  auto* func_ptr = func;
-  mod()->AddFunction(std::move(func));
+      Source{Source::Location{12, 34}}, var_a_float));
+  auto* func = create<ast::Function>("my_func", params, &void_type, body);
+
+  mod()->AddFunction(func);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
-  EXPECT_TRUE(td()->DetermineFunction(func_ptr)) << td()->error();
+  EXPECT_TRUE(td()->DetermineFunction(func)) << td()->error();
   EXPECT_FALSE(v()->Validate(mod()));
   EXPECT_EQ(v()->error(), "12:34: v-0014: redeclared identifier 'a'");
 }
@@ -568,7 +546,7 @@ TEST_F(ValidatorTest, RedeclaredIdentifierInnerScope_Pass) {
   auto* cond = create<ast::ScalarConstructorExpression>(
       create<ast::BoolLiteral>(&bool_type, true));
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
 
   auto* var_a_float =
       create<ast::Variable>("a", ast::StorageClass::kNone, &f32);
@@ -576,10 +554,9 @@ TEST_F(ValidatorTest, RedeclaredIdentifierInnerScope_Pass) {
       create<ast::FloatLiteral>(&f32, 3.14)));
 
   auto* outer_body = create<ast::BlockStatement>();
-  outer_body->append(
-      create<ast::IfStatement>(std::move(cond), std::move(body)));
+  outer_body->append(create<ast::IfStatement>(cond, body));
   outer_body->append(create<ast::VariableDeclStatement>(
-      Source{Source::Location{12, 34}}, std::move(var_a_float)));
+      Source{Source::Location{12, 34}}, var_a_float));
 
   EXPECT_TRUE(td()->DetermineStatements(outer_body)) << td()->error();
   EXPECT_TRUE(v()->ValidateStatements(outer_body)) << v()->error();
@@ -607,13 +584,11 @@ TEST_F(ValidatorTest, DISABLED_RedeclaredIdentifierInnerScope_False) {
       create<ast::BoolLiteral>(&bool_type, true));
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::VariableDeclStatement>(
-      Source{Source::Location{12, 34}}, std::move(var)));
+      Source{Source::Location{12, 34}}, var));
 
   auto* outer_body = create<ast::BlockStatement>();
-  outer_body->append(
-      create<ast::VariableDeclStatement>(std::move(var_a_float)));
-  outer_body->append(
-      create<ast::IfStatement>(std::move(cond), std::move(body)));
+  outer_body->append(create<ast::VariableDeclStatement>(var_a_float));
+  outer_body->append(create<ast::IfStatement>(cond, body));
 
   EXPECT_TRUE(td()->DetermineStatements(outer_body)) << td()->error();
   EXPECT_FALSE(v()->ValidateStatements(outer_body));
@@ -636,23 +611,21 @@ TEST_F(ValidatorTest, RedeclaredIdentifierDifferentFunctions_Pass) {
   ast::VariableList params0;
   auto* body0 = create<ast::BlockStatement>();
   body0->append(create<ast::VariableDeclStatement>(
-      Source{Source::Location{12, 34}}, std::move(var0)));
+      Source{Source::Location{12, 34}}, var0));
   body0->append(create<ast::ReturnStatement>());
-  auto* func0 = create<ast::Function>("func0", std::move(params0), &void_type,
-                                      std::move(body0));
+  auto* func0 = create<ast::Function>("func0", params0, &void_type, body0);
 
   ast::VariableList params1;
   auto* body1 = create<ast::BlockStatement>();
   body1->append(create<ast::VariableDeclStatement>(
-      Source{Source::Location{13, 34}}, std::move(var1)));
+      Source{Source::Location{13, 34}}, var1));
   body1->append(create<ast::ReturnStatement>());
-  auto* func1 = create<ast::Function>("func1", std::move(params1), &void_type,
-                                      std::move(body1));
+  auto* func1 = create<ast::Function>("func1", params1, &void_type, body1);
   func1->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
 
-  mod()->AddFunction(std::move(func0));
-  mod()->AddFunction(std::move(func1));
+  mod()->AddFunction(func0);
+  mod()->AddFunction(func1);
 
   EXPECT_TRUE(td()->Determine()) << td()->error();
   EXPECT_TRUE(v()->Validate(mod())) << v()->error();
@@ -668,19 +641,17 @@ TEST_F(ValidatorTest, VariableDeclNoConstructor_Pass) {
 
   td()->RegisterVariableForTesting(var);
   auto* lhs = create<ast::IdentifierExpression>("a");
-  auto* lhs_ptr = lhs;
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
-  auto* rhs_ptr = rhs;
 
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::AssignmentStatement>(
-      Source{Source::Location{12, 34}}, std::move(lhs), std::move(rhs)));
+      Source{Source::Location{12, 34}}, lhs, rhs));
 
   EXPECT_TRUE(td()->DetermineStatements(body)) << td()->error();
-  ASSERT_NE(lhs_ptr->result_type(), nullptr);
-  ASSERT_NE(rhs_ptr->result_type(), nullptr);
+  ASSERT_NE(lhs->result_type(), nullptr);
+  ASSERT_NE(rhs->result_type(), nullptr);
   EXPECT_TRUE(v()->ValidateStatements(body)) << v()->error();
 }
 
diff --git a/src/writer/hlsl/generator_impl_alias_type_test.cc b/src/writer/hlsl/generator_impl_alias_type_test.cc
index da36b1f83f..4dbe93a425 100644
--- a/src/writer/hlsl/generator_impl_alias_type_test.cc
+++ b/src/writer/hlsl/generator_impl_alias_type_test.cc
@@ -50,18 +50,16 @@ TEST_F(HlslGeneratorImplTest_AliasType, EmitAliasType_Struct) {
   ast::type::I32Type i32;
   ast::type::F32Type f32;
 
-  ast::StructMemberList members;
-  members.push_back(
-      create<ast::StructMember>("a", &f32, ast::StructMemberDecorationList{}));
-
-  ast::StructMemberDecorationList b_deco;
-  b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &i32, std::move(b_deco)));
-
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members({
+      create<ast::StructMember>("a", &f32, ast::StructMemberDecorationList{}),
+      create<ast::StructMember>(
+          "b", &i32,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(4, Source{})}),
+  });
 
-  ast::type::StructType s("A", std::move(str));
+  ast::type::StructType s("A", str);
   ast::type::AliasType alias("B", &s);
 
   ASSERT_TRUE(gen.EmitConstructedType(out, &alias)) << gen.error();
diff --git a/src/writer/hlsl/generator_impl_array_accessor_test.cc b/src/writer/hlsl/generator_impl_array_accessor_test.cc
index a3e6e599a1..b803f8b846 100644
--- a/src/writer/hlsl/generator_impl_array_accessor_test.cc
+++ b/src/writer/hlsl/generator_impl_array_accessor_test.cc
@@ -32,10 +32,10 @@ using HlslGeneratorImplTest_Expression = TestHelper;
 TEST_F(HlslGeneratorImplTest_Expression, EmitExpression_ArrayAccessor) {
   ast::type::I32Type i32;
   auto* lit = create<ast::SintLiteral>(&i32, 5);
-  auto* idx = create<ast::ScalarConstructorExpression>(std::move(lit));
+  auto* idx = create<ast::ScalarConstructorExpression>(lit);
   auto* ary = create<ast::IdentifierExpression>("ary");
 
-  ast::ArrayAccessorExpression expr(std::move(ary), std::move(idx));
+  ast::ArrayAccessorExpression expr(ary, idx);
 
   ASSERT_TRUE(gen.EmitExpression(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(), "ary[5]");
@@ -45,7 +45,7 @@ TEST_F(HlslGeneratorImplTest_Expression, EmitArrayAccessor) {
   auto* ary = create<ast::IdentifierExpression>("ary");
   auto* idx = create<ast::IdentifierExpression>("idx");
 
-  ast::ArrayAccessorExpression expr(std::move(ary), std::move(idx));
+  ast::ArrayAccessorExpression expr(ary, idx);
 
   ASSERT_TRUE(gen.EmitExpression(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(), "ary[idx]");
diff --git a/src/writer/hlsl/generator_impl_assign_test.cc b/src/writer/hlsl/generator_impl_assign_test.cc
index bb13cc0d56..a34d9ac6a0 100644
--- a/src/writer/hlsl/generator_impl_assign_test.cc
+++ b/src/writer/hlsl/generator_impl_assign_test.cc
@@ -30,7 +30,7 @@ using HlslGeneratorImplTest_Assign = TestHelper;
 TEST_F(HlslGeneratorImplTest_Assign, Emit_Assign) {
   auto* lhs = create<ast::IdentifierExpression>("lhs");
   auto* rhs = create<ast::IdentifierExpression>("rhs");
-  ast::AssignmentStatement assign(std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement assign(lhs, rhs);
 
   gen.increment_indent();
 
diff --git a/src/writer/hlsl/generator_impl_binary_test.cc b/src/writer/hlsl/generator_impl_binary_test.cc
index ca333ca83a..23d76c585f 100644
--- a/src/writer/hlsl/generator_impl_binary_test.cc
+++ b/src/writer/hlsl/generator_impl_binary_test.cc
@@ -57,7 +57,7 @@ TEST_P(HlslBinaryTest, Emit) {
   auto* left = create<ast::IdentifierExpression>("left");
   auto* right = create<ast::IdentifierExpression>("right");
 
-  ast::BinaryExpression expr(params.op, std::move(left), std::move(right));
+  ast::BinaryExpression expr(params.op, left, right);
 
   ASSERT_TRUE(gen.EmitExpression(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(), params.result);
@@ -87,8 +87,7 @@ TEST_F(HlslGeneratorImplTest_Binary, Logical_And) {
   auto* left = create<ast::IdentifierExpression>("left");
   auto* right = create<ast::IdentifierExpression>("right");
 
-  ast::BinaryExpression expr(ast::BinaryOp::kLogicalAnd, std::move(left),
-                             std::move(right));
+  ast::BinaryExpression expr(ast::BinaryOp::kLogicalAnd, left, right);
 
   ASSERT_TRUE(gen.EmitExpression(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(), "(_tint_tmp)");
@@ -108,10 +107,8 @@ TEST_F(HlslGeneratorImplTest_Binary, Logical_Multi) {
 
   ast::BinaryExpression expr(
       ast::BinaryOp::kLogicalOr,
-      create<ast::BinaryExpression>(ast::BinaryOp::kLogicalAnd, std::move(a),
-                                    std::move(b)),
-      create<ast::BinaryExpression>(ast::BinaryOp::kLogicalOr, std::move(c),
-                                    std::move(d)));
+      create<ast::BinaryExpression>(ast::BinaryOp::kLogicalAnd, a, b),
+      create<ast::BinaryExpression>(ast::BinaryOp::kLogicalOr, c, d));
 
   ASSERT_TRUE(gen.EmitExpression(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(), "(_tint_tmp_0)");
@@ -134,8 +131,7 @@ TEST_F(HlslGeneratorImplTest_Binary, Logical_Or) {
   auto* left = create<ast::IdentifierExpression>("left");
   auto* right = create<ast::IdentifierExpression>("right");
 
-  ast::BinaryExpression expr(ast::BinaryOp::kLogicalOr, std::move(left),
-                             std::move(right));
+  ast::BinaryExpression expr(ast::BinaryOp::kLogicalOr, left, right);
 
   ASSERT_TRUE(gen.EmitExpression(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(), "(_tint_tmp)");
@@ -161,7 +157,7 @@ TEST_F(HlslGeneratorImplTest_Binary, If_WithLogical) {
   body->append(
       create<ast::ReturnStatement>(create<ast::ScalarConstructorExpression>(
           create<ast::SintLiteral>(&i32, 3))));
-  auto* else_stmt = create<ast::ElseStatement>(std::move(body));
+  auto* else_stmt = create<ast::ElseStatement>(body);
 
   body = create<ast::BlockStatement>();
   body->append(
@@ -171,11 +167,11 @@ TEST_F(HlslGeneratorImplTest_Binary, If_WithLogical) {
       create<ast::BinaryExpression>(ast::BinaryOp::kLogicalOr,
                                     create<ast::IdentifierExpression>("b"),
                                     create<ast::IdentifierExpression>("c")),
-      std::move(body));
+      body);
 
   ast::ElseStatementList else_stmts;
-  else_stmts.push_back(std::move(else_if_stmt));
-  else_stmts.push_back(std::move(else_stmt));
+  else_stmts.push_back(else_if_stmt);
+  else_stmts.push_back(else_stmt);
 
   body = create<ast::BlockStatement>();
   body->append(
@@ -186,8 +182,8 @@ TEST_F(HlslGeneratorImplTest_Binary, If_WithLogical) {
       create<ast::BinaryExpression>(ast::BinaryOp::kLogicalAnd,
                                     create<ast::IdentifierExpression>("a"),
                                     create<ast::IdentifierExpression>("b")),
-      std::move(body));
-  expr.set_else_statements(std::move(else_stmts));
+      body);
+  expr.set_else_statements(else_stmts);
 
   ASSERT_TRUE(gen.EmitStatement(out, &expr)) << gen.error();
   EXPECT_EQ(result(), R"(bool _tint_tmp = a;
@@ -218,9 +214,7 @@ TEST_F(HlslGeneratorImplTest_Binary, Return_WithLogical) {
 
   ast::ReturnStatement expr(create<ast::BinaryExpression>(
       ast::BinaryOp::kLogicalOr,
-      create<ast::BinaryExpression>(ast::BinaryOp::kLogicalAnd, std::move(a),
-                                    std::move(b)),
-      std::move(c)));
+      create<ast::BinaryExpression>(ast::BinaryOp::kLogicalAnd, a, b), c));
 
   ASSERT_TRUE(gen.EmitStatement(out, &expr)) << gen.error();
   EXPECT_EQ(result(), R"(bool _tint_tmp = a;
@@ -243,12 +237,10 @@ TEST_F(HlslGeneratorImplTest_Binary, Assign_WithLogical) {
   auto* d = create<ast::IdentifierExpression>("d");
 
   ast::AssignmentStatement expr(
-      std::move(a),
+      a,
       create<ast::BinaryExpression>(
           ast::BinaryOp::kLogicalAnd,
-          create<ast::BinaryExpression>(ast::BinaryOp::kLogicalOr, std::move(b),
-                                        std::move(c)),
-          std::move(d)));
+          create<ast::BinaryExpression>(ast::BinaryOp::kLogicalOr, b, c), d));
 
   ASSERT_TRUE(gen.EmitStatement(out, &expr)) << gen.error();
   EXPECT_EQ(result(), R"(bool _tint_tmp = b;
@@ -275,11 +267,9 @@ TEST_F(HlslGeneratorImplTest_Binary, Decl_WithLogical) {
       create<ast::Variable>("a", ast::StorageClass::kFunction, &bool_type);
   var->set_constructor(create<ast::BinaryExpression>(
       ast::BinaryOp::kLogicalOr,
-      create<ast::BinaryExpression>(ast::BinaryOp::kLogicalAnd, std::move(b),
-                                    std::move(c)),
-      std::move(d)));
+      create<ast::BinaryExpression>(ast::BinaryOp::kLogicalAnd, b, c), d));
 
-  ast::VariableDeclStatement expr(std::move(var));
+  ast::VariableDeclStatement expr(var);
 
   ASSERT_TRUE(gen.EmitStatement(out, &expr)) << gen.error();
   EXPECT_EQ(result(), R"(bool _tint_tmp = b;
@@ -302,11 +292,10 @@ TEST_F(HlslGeneratorImplTest_Binary, Bitcast_WithLogical) {
   auto* b = create<ast::IdentifierExpression>("b");
   auto* c = create<ast::IdentifierExpression>("c");
 
-  ast::BitcastExpression expr(
-      &i32, create<ast::BinaryExpression>(
-                ast::BinaryOp::kLogicalAnd, std::move(a),
-                create<ast::BinaryExpression>(ast::BinaryOp::kLogicalOr,
-                                              std::move(b), std::move(c))));
+  ast::BitcastExpression expr(&i32, create<ast::BinaryExpression>(
+                                        ast::BinaryOp::kLogicalAnd, a,
+                                        create<ast::BinaryExpression>(
+                                            ast::BinaryOp::kLogicalOr, b, c)));
 
   ASSERT_TRUE(gen.EmitExpression(pre, out, &expr)) << gen.error();
   EXPECT_EQ(pre_result(), R"(bool _tint_tmp = a;
@@ -328,7 +317,7 @@ TEST_F(HlslGeneratorImplTest_Binary, Call_WithLogical) {
 
   auto* func = create<ast::Function>("foo", ast::VariableList{}, &void_type,
                                      create<ast::BlockStatement>());
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ast::ExpressionList params;
   params.push_back(create<ast::BinaryExpression>(
@@ -347,7 +336,7 @@ TEST_F(HlslGeneratorImplTest_Binary, Call_WithLogical) {
                                     create<ast::IdentifierExpression>("d"))));
 
   ast::CallStatement expr(create<ast::CallExpression>(
-      create<ast::IdentifierExpression>("foo"), std::move(params)));
+      create<ast::IdentifierExpression>("foo"), params));
 
   ASSERT_TRUE(gen.EmitStatement(out, &expr)) << gen.error();
   EXPECT_EQ(result(), R"(bool _tint_tmp = a;
diff --git a/src/writer/hlsl/generator_impl_bitcast_test.cc b/src/writer/hlsl/generator_impl_bitcast_test.cc
index d9b431c872..1fa7d2e698 100644
--- a/src/writer/hlsl/generator_impl_bitcast_test.cc
+++ b/src/writer/hlsl/generator_impl_bitcast_test.cc
@@ -32,7 +32,7 @@ using HlslGeneratorImplTest_Bitcast = TestHelper;
 TEST_F(HlslGeneratorImplTest_Bitcast, EmitExpression_Bitcast_Float) {
   ast::type::F32Type f32;
   auto* id = create<ast::IdentifierExpression>("id");
-  ast::BitcastExpression bitcast(&f32, std::move(id));
+  ast::BitcastExpression bitcast(&f32, id);
 
   ASSERT_TRUE(gen.EmitExpression(pre, out, &bitcast)) << gen.error();
   EXPECT_EQ(result(), "asfloat(id)");
@@ -41,7 +41,7 @@ TEST_F(HlslGeneratorImplTest_Bitcast, EmitExpression_Bitcast_Float) {
 TEST_F(HlslGeneratorImplTest_Bitcast, EmitExpression_Bitcast_Int) {
   ast::type::I32Type i32;
   auto* id = create<ast::IdentifierExpression>("id");
-  ast::BitcastExpression bitcast(&i32, std::move(id));
+  ast::BitcastExpression bitcast(&i32, id);
 
   ASSERT_TRUE(gen.EmitExpression(pre, out, &bitcast)) << gen.error();
   EXPECT_EQ(result(), "asint(id)");
@@ -50,7 +50,7 @@ TEST_F(HlslGeneratorImplTest_Bitcast, EmitExpression_Bitcast_Int) {
 TEST_F(HlslGeneratorImplTest_Bitcast, EmitExpression_Bitcast_Uint) {
   ast::type::U32Type u32;
   auto* id = create<ast::IdentifierExpression>("id");
-  ast::BitcastExpression bitcast(&u32, std::move(id));
+  ast::BitcastExpression bitcast(&u32, id);
 
   ASSERT_TRUE(gen.EmitExpression(pre, out, &bitcast)) << gen.error();
   EXPECT_EQ(result(), "asuint(id)");
diff --git a/src/writer/hlsl/generator_impl_call_test.cc b/src/writer/hlsl/generator_impl_call_test.cc
index 8f816a7929..39f20ed8b8 100644
--- a/src/writer/hlsl/generator_impl_call_test.cc
+++ b/src/writer/hlsl/generator_impl_call_test.cc
@@ -33,11 +33,11 @@ TEST_F(HlslGeneratorImplTest_Call, EmitExpression_Call_WithoutParams) {
   ast::type::VoidType void_type;
 
   auto* id = create<ast::IdentifierExpression>("my_func");
-  ast::CallExpression call(std::move(id), {});
+  ast::CallExpression call(id, {});
 
   auto* func = create<ast::Function>("my_func", ast::VariableList{}, &void_type,
                                      create<ast::BlockStatement>());
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(gen.EmitExpression(pre, out, &call)) << gen.error();
   EXPECT_EQ(result(), "my_func()");
@@ -50,11 +50,11 @@ TEST_F(HlslGeneratorImplTest_Call, EmitExpression_Call_WithParams) {
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("param1"));
   params.push_back(create<ast::IdentifierExpression>("param2"));
-  ast::CallExpression call(std::move(id), std::move(params));
+  ast::CallExpression call(id, params);
 
   auto* func = create<ast::Function>("my_func", ast::VariableList{}, &void_type,
                                      create<ast::BlockStatement>());
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(gen.EmitExpression(pre, out, &call)) << gen.error();
   EXPECT_EQ(result(), "my_func(param1, param2)");
@@ -67,12 +67,11 @@ TEST_F(HlslGeneratorImplTest_Call, EmitStatement_Call) {
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("param1"));
   params.push_back(create<ast::IdentifierExpression>("param2"));
-  ast::CallStatement call(
-      create<ast::CallExpression>(std::move(id), std::move(params)));
+  ast::CallStatement call(create<ast::CallExpression>(id, params));
 
   auto* func = create<ast::Function>("my_func", ast::VariableList{}, &void_type,
                                      create<ast::BlockStatement>());
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
   gen.increment_indent();
   ASSERT_TRUE(gen.EmitStatement(out, &call)) << gen.error();
   EXPECT_EQ(result(), "  my_func(param1, param2);\n");
diff --git a/src/writer/hlsl/generator_impl_case_test.cc b/src/writer/hlsl/generator_impl_case_test.cc
index a63a570db9..efff3e9031 100644
--- a/src/writer/hlsl/generator_impl_case_test.cc
+++ b/src/writer/hlsl/generator_impl_case_test.cc
@@ -38,7 +38,7 @@ TEST_F(HlslGeneratorImplTest_Case, Emit_Case) {
 
   ast::CaseSelectorList lit;
   lit.push_back(create<ast::SintLiteral>(&i32, 5));
-  ast::CaseStatement c(std::move(lit), std::move(body));
+  ast::CaseStatement c(lit, body);
 
   gen.increment_indent();
 
@@ -54,7 +54,7 @@ TEST_F(HlslGeneratorImplTest_Case, Emit_Case_BreaksByDefault) {
 
   ast::CaseSelectorList lit;
   lit.push_back(create<ast::SintLiteral>(&i32, 5));
-  ast::CaseStatement c(std::move(lit), create<ast::BlockStatement>());
+  ast::CaseStatement c(lit, create<ast::BlockStatement>());
 
   gen.increment_indent();
 
@@ -73,7 +73,7 @@ TEST_F(HlslGeneratorImplTest_Case, Emit_Case_WithFallthrough) {
 
   ast::CaseSelectorList lit;
   lit.push_back(create<ast::SintLiteral>(&i32, 5));
-  ast::CaseStatement c(std::move(lit), std::move(body));
+  ast::CaseStatement c(lit, body);
 
   gen.increment_indent();
 
@@ -93,7 +93,7 @@ TEST_F(HlslGeneratorImplTest_Case, Emit_Case_MultipleSelectors) {
   ast::CaseSelectorList lit;
   lit.push_back(create<ast::SintLiteral>(&i32, 5));
   lit.push_back(create<ast::SintLiteral>(&i32, 6));
-  ast::CaseStatement c(std::move(lit), std::move(body));
+  ast::CaseStatement c(lit, body);
 
   gen.increment_indent();
 
@@ -108,7 +108,7 @@ TEST_F(HlslGeneratorImplTest_Case, Emit_Case_MultipleSelectors) {
 TEST_F(HlslGeneratorImplTest_Case, Emit_Case_Default) {
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::BreakStatement>());
-  ast::CaseStatement c(std::move(body));
+  ast::CaseStatement c(body);
 
   gen.increment_indent();
 
diff --git a/src/writer/hlsl/generator_impl_cast_test.cc b/src/writer/hlsl/generator_impl_cast_test.cc
index 6052494df2..f2fbcde3e4 100644
--- a/src/writer/hlsl/generator_impl_cast_test.cc
+++ b/src/writer/hlsl/generator_impl_cast_test.cc
@@ -34,7 +34,7 @@ TEST_F(HlslGeneratorImplTest_Cast, EmitExpression_Cast_Scalar) {
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("id"));
 
-  ast::TypeConstructorExpression cast(&f32, std::move(params));
+  ast::TypeConstructorExpression cast(&f32, params);
 
   ASSERT_TRUE(gen.EmitExpression(pre, out, &cast)) << gen.error();
   EXPECT_EQ(result(), "float(id)");
@@ -47,7 +47,7 @@ TEST_F(HlslGeneratorImplTest_Cast, EmitExpression_Cast_Vector) {
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("id"));
 
-  ast::TypeConstructorExpression cast(&vec3, std::move(params));
+  ast::TypeConstructorExpression cast(&vec3, params);
 
   ASSERT_TRUE(gen.EmitExpression(pre, out, &cast)) << gen.error();
   EXPECT_EQ(result(), "vector<float, 3>(id)");
diff --git a/src/writer/hlsl/generator_impl_constructor_test.cc b/src/writer/hlsl/generator_impl_constructor_test.cc
index 02f307bc3e..c0512e55ac 100644
--- a/src/writer/hlsl/generator_impl_constructor_test.cc
+++ b/src/writer/hlsl/generator_impl_constructor_test.cc
@@ -38,7 +38,7 @@ using HlslGeneratorImplTest_Constructor = TestHelper;
 TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Bool) {
   ast::type::BoolType bool_type;
   auto* lit = create<ast::BoolLiteral>(&bool_type, false);
-  ast::ScalarConstructorExpression expr(std::move(lit));
+  ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(), "false");
@@ -47,7 +47,7 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Bool) {
 TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Int) {
   ast::type::I32Type i32;
   auto* lit = create<ast::SintLiteral>(&i32, -12345);
-  ast::ScalarConstructorExpression expr(std::move(lit));
+  ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(), "-12345");
@@ -56,7 +56,7 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Int) {
 TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_UInt) {
   ast::type::U32Type u32;
   auto* lit = create<ast::UintLiteral>(&u32, 56779);
-  ast::ScalarConstructorExpression expr(std::move(lit));
+  ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(), "56779u");
@@ -67,7 +67,7 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Float) {
   // Use a number close to 1<<30 but whose decimal representation ends in 0.
   auto* lit =
       create<ast::FloatLiteral>(&f32, static_cast<float>((1 << 30) - 4));
-  ast::ScalarConstructorExpression expr(std::move(lit));
+  ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(), "1.07374182e+09f");
@@ -78,9 +78,9 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Float) {
 
   auto* lit = create<ast::FloatLiteral>(&f32, -1.2e-5);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
-  ast::TypeConstructorExpression expr(&f32, std::move(values));
+  ast::TypeConstructorExpression expr(&f32, values);
 
   ASSERT_TRUE(gen.EmitConstructor(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(), "float(-1.20000004e-05f)");
@@ -91,9 +91,9 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Bool) {
 
   auto* lit = create<ast::BoolLiteral>(&b, true);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
-  ast::TypeConstructorExpression expr(&b, std::move(values));
+  ast::TypeConstructorExpression expr(&b, values);
 
   ASSERT_TRUE(gen.EmitConstructor(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(), "bool(true)");
@@ -104,9 +104,9 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Int) {
 
   auto* lit = create<ast::SintLiteral>(&i32, -12345);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
-  ast::TypeConstructorExpression expr(&i32, std::move(values));
+  ast::TypeConstructorExpression expr(&i32, values);
 
   ASSERT_TRUE(gen.EmitConstructor(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(), "int(-12345)");
@@ -117,9 +117,9 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Uint) {
 
   auto* lit = create<ast::UintLiteral>(&u32, 12345);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
-  ast::TypeConstructorExpression expr(&u32, std::move(values));
+  ast::TypeConstructorExpression expr(&u32, values);
 
   ASSERT_TRUE(gen.EmitConstructor(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(), "uint(12345u)");
@@ -133,11 +133,11 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec) {
   auto* lit2 = create<ast::FloatLiteral>(&f32, 2.f);
   auto* lit3 = create<ast::FloatLiteral>(&f32, 3.f);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit1)));
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit2)));
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit3)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit1));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit2));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit3));
 
-  ast::TypeConstructorExpression expr(&vec, std::move(values));
+  ast::TypeConstructorExpression expr(&vec, values);
 
   ASSERT_TRUE(gen.EmitConstructor(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(),
@@ -149,7 +149,7 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Vec_Empty) {
   ast::type::VectorType vec(&f32, 3);
 
   ast::ExpressionList values;
-  ast::TypeConstructorExpression expr(&vec, std::move(values));
+  ast::TypeConstructorExpression expr(&vec, values);
 
   ASSERT_TRUE(gen.EmitConstructor(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(), "vector<float, 3>(0.0f)");
@@ -174,15 +174,14 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Mat) {
         create<ast::FloatLiteral>(&f32, static_cast<float>(3 + (i * 2)));
 
     ast::ExpressionList values;
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit1)));
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit2)));
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit3)));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit1));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit2));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit3));
 
-    mat_values.push_back(
-        create<ast::TypeConstructorExpression>(&vec, std::move(values)));
+    mat_values.push_back(create<ast::TypeConstructorExpression>(&vec, values));
   }
 
-  ast::TypeConstructorExpression expr(&mat, std::move(mat_values));
+  ast::TypeConstructorExpression expr(&mat, mat_values);
 
   ASSERT_TRUE(gen.EmitConstructor(pre, out, &expr)) << gen.error();
 
@@ -210,15 +209,14 @@ TEST_F(HlslGeneratorImplTest_Constructor, EmitConstructor_Type_Array) {
         create<ast::FloatLiteral>(&f32, static_cast<float>(3 + (i * 3)));
 
     ast::ExpressionList values;
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit1)));
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit2)));
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit3)));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit1));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit2));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit3));
 
-    ary_values.push_back(
-        create<ast::TypeConstructorExpression>(&vec, std::move(values)));
+    ary_values.push_back(create<ast::TypeConstructorExpression>(&vec, values));
   }
 
-  ast::TypeConstructorExpression expr(&ary, std::move(ary_values));
+  ast::TypeConstructorExpression expr(&ary, ary_values);
 
   ASSERT_TRUE(gen.EmitConstructor(pre, out, &expr)) << gen.error();
   EXPECT_EQ(result(),
diff --git a/src/writer/hlsl/generator_impl_function_entry_point_data_test.cc b/src/writer/hlsl/generator_impl_function_entry_point_data_test.cc
index 8c0419a2d5..9215ccac96 100644
--- a/src/writer/hlsl/generator_impl_function_entry_point_data_test.cc
+++ b/src/writer/hlsl/generator_impl_function_entry_point_data_test.cc
@@ -55,21 +55,17 @@ TEST_F(HlslGeneratorImplTest_EntryPoint,
 
   auto* foo_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("foo", ast::StorageClass::kInput, &f32));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  foo_var->set_decorations(std::move(decos));
+  foo_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
 
   auto* bar_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("bar", ast::StorageClass::kInput, &i32));
-  decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations({create<ast::LocationDecoration>(1, Source{})});
 
   td.RegisterVariableForTesting(foo_var);
   td.RegisterVariableForTesting(bar_var);
 
-  mod.AddGlobalVariable(std::move(foo_var));
-  mod.AddGlobalVariable(std::move(bar_var));
+  mod.AddGlobalVariable(foo_var);
+  mod.AddGlobalVariable(bar_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -80,18 +76,16 @@ TEST_F(HlslGeneratorImplTest_EntryPoint,
       create<ast::IdentifierExpression>("bar"),
       create<ast::IdentifierExpression>("bar")));
 
-  auto* func = create<ast::Function>("vtx_main", std::move(params), &f32,
-                                     std::move(body));
+  auto* func = create<ast::Function>("vtx_main", params, &f32, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  auto* func_ptr = func;
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   std::unordered_set<std::string> globals;
 
   ASSERT_TRUE(td.Determine()) << td.error();
-  ASSERT_TRUE(gen.EmitEntryPointData(out, func_ptr, globals)) << gen.error();
+  ASSERT_TRUE(gen.EmitEntryPointData(out, func, globals)) << gen.error();
   EXPECT_EQ(result(), R"(struct vtx_main_in {
   float foo : TEXCOORD0;
   int bar : TEXCOORD1;
@@ -115,21 +109,17 @@ TEST_F(HlslGeneratorImplTest_EntryPoint,
 
   auto* foo_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("foo", ast::StorageClass::kOutput, &f32));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  foo_var->set_decorations(std::move(decos));
+  foo_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
 
   auto* bar_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("bar", ast::StorageClass::kOutput, &i32));
-  decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations({create<ast::LocationDecoration>(1, Source{})});
 
   td.RegisterVariableForTesting(foo_var);
   td.RegisterVariableForTesting(bar_var);
 
-  mod.AddGlobalVariable(std::move(foo_var));
-  mod.AddGlobalVariable(std::move(bar_var));
+  mod.AddGlobalVariable(foo_var);
+  mod.AddGlobalVariable(bar_var);
 
   ast::VariableList params;
 
@@ -141,18 +131,16 @@ TEST_F(HlslGeneratorImplTest_EntryPoint,
       create<ast::IdentifierExpression>("bar"),
       create<ast::IdentifierExpression>("bar")));
 
-  auto* func = create<ast::Function>("vtx_main", std::move(params), &f32,
-                                     std::move(body));
+  auto* func = create<ast::Function>("vtx_main", params, &f32, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  auto* func_ptr = func;
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   std::unordered_set<std::string> globals;
 
   ASSERT_TRUE(td.Determine()) << td.error();
-  ASSERT_TRUE(gen.EmitEntryPointData(out, func_ptr, globals)) << gen.error();
+  ASSERT_TRUE(gen.EmitEntryPointData(out, func, globals)) << gen.error();
   EXPECT_EQ(result(), R"(struct vtx_main_out {
   float foo : TEXCOORD0;
   int bar : TEXCOORD1;
@@ -176,21 +164,17 @@ TEST_F(HlslGeneratorImplTest_EntryPoint,
 
   auto* foo_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("foo", ast::StorageClass::kInput, &f32));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  foo_var->set_decorations(std::move(decos));
+  foo_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
 
   auto* bar_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("bar", ast::StorageClass::kInput, &i32));
-  decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations({create<ast::LocationDecoration>(1, Source{})});
 
   td.RegisterVariableForTesting(foo_var);
   td.RegisterVariableForTesting(bar_var);
 
-  mod.AddGlobalVariable(std::move(foo_var));
-  mod.AddGlobalVariable(std::move(bar_var));
+  mod.AddGlobalVariable(foo_var);
+  mod.AddGlobalVariable(bar_var);
 
   ast::VariableList params;
 
@@ -202,18 +186,16 @@ TEST_F(HlslGeneratorImplTest_EntryPoint,
       create<ast::IdentifierExpression>("bar"),
       create<ast::IdentifierExpression>("bar")));
 
-  auto* func =
-      create<ast::Function>("main", std::move(params), &f32, std::move(body));
+  auto* func = create<ast::Function>("main", params, &f32, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  auto* func_ptr = func;
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   std::unordered_set<std::string> globals;
 
   ASSERT_TRUE(td.Determine()) << td.error();
-  ASSERT_TRUE(gen.EmitEntryPointData(out, func_ptr, globals)) << gen.error();
+  ASSERT_TRUE(gen.EmitEntryPointData(out, func, globals)) << gen.error();
   EXPECT_EQ(result(), R"(struct main_in {
   float foo : TEXCOORD0;
   int bar : TEXCOORD1;
@@ -237,21 +219,17 @@ TEST_F(HlslGeneratorImplTest_EntryPoint,
 
   auto* foo_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("foo", ast::StorageClass::kOutput, &f32));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  foo_var->set_decorations(std::move(decos));
+  foo_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
 
   auto* bar_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("bar", ast::StorageClass::kOutput, &i32));
-  decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations({create<ast::LocationDecoration>(1, Source{})});
 
   td.RegisterVariableForTesting(foo_var);
   td.RegisterVariableForTesting(bar_var);
 
-  mod.AddGlobalVariable(std::move(foo_var));
-  mod.AddGlobalVariable(std::move(bar_var));
+  mod.AddGlobalVariable(foo_var);
+  mod.AddGlobalVariable(bar_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -262,18 +240,16 @@ TEST_F(HlslGeneratorImplTest_EntryPoint,
       create<ast::IdentifierExpression>("bar"),
       create<ast::IdentifierExpression>("bar")));
 
-  auto* func =
-      create<ast::Function>("main", std::move(params), &f32, std::move(body));
+  auto* func = create<ast::Function>("main", params, &f32, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
-  auto* func_ptr = func;
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   std::unordered_set<std::string> globals;
 
   ASSERT_TRUE(td.Determine()) << td.error();
-  ASSERT_TRUE(gen.EmitEntryPointData(out, func_ptr, globals)) << gen.error();
+  ASSERT_TRUE(gen.EmitEntryPointData(out, func, globals)) << gen.error();
   EXPECT_EQ(result(), R"(struct main_out {
   float foo : SV_Target0;
   int bar : SV_Target1;
@@ -297,18 +273,18 @@ TEST_F(HlslGeneratorImplTest_EntryPoint,
 
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  foo_var->set_decorations(std::move(decos));
+  foo_var->set_decorations(decos);
 
   auto* bar_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("bar", ast::StorageClass::kInput, &i32));
   decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(foo_var);
   td.RegisterVariableForTesting(bar_var);
 
-  mod.AddGlobalVariable(std::move(foo_var));
-  mod.AddGlobalVariable(std::move(bar_var));
+  mod.AddGlobalVariable(foo_var);
+  mod.AddGlobalVariable(bar_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -319,18 +295,16 @@ TEST_F(HlslGeneratorImplTest_EntryPoint,
       create<ast::IdentifierExpression>("bar"),
       create<ast::IdentifierExpression>("bar")));
 
-  auto* func =
-      create<ast::Function>("main", std::move(params), &f32, std::move(body));
+  auto* func = create<ast::Function>("main", params, &f32, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
-  auto* func_ptr = func;
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   std::unordered_set<std::string> globals;
 
   ASSERT_TRUE(td.Determine()) << td.error();
-  ASSERT_FALSE(gen.EmitEntryPointData(out, func_ptr, globals)) << gen.error();
+  ASSERT_FALSE(gen.EmitEntryPointData(out, func, globals)) << gen.error();
   EXPECT_EQ(gen.error(), R"(invalid location variable for pipeline stage)");
 }
 
@@ -349,18 +323,18 @@ TEST_F(HlslGeneratorImplTest_EntryPoint,
 
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  foo_var->set_decorations(std::move(decos));
+  foo_var->set_decorations(decos);
 
   auto* bar_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("bar", ast::StorageClass::kOutput, &i32));
   decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(foo_var);
   td.RegisterVariableForTesting(bar_var);
 
-  mod.AddGlobalVariable(std::move(foo_var));
-  mod.AddGlobalVariable(std::move(bar_var));
+  mod.AddGlobalVariable(foo_var);
+  mod.AddGlobalVariable(bar_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -371,18 +345,16 @@ TEST_F(HlslGeneratorImplTest_EntryPoint,
       create<ast::IdentifierExpression>("bar"),
       create<ast::IdentifierExpression>("bar")));
 
-  auto* func =
-      create<ast::Function>("main", std::move(params), &f32, std::move(body));
+  auto* func = create<ast::Function>("main", params, &f32, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
-  auto* func_ptr = func;
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   std::unordered_set<std::string> globals;
 
   ASSERT_TRUE(td.Determine()) << td.error();
-  ASSERT_FALSE(gen.EmitEntryPointData(out, func_ptr, globals)) << gen.error();
+  ASSERT_FALSE(gen.EmitEntryPointData(out, func, globals)) << gen.error();
   EXPECT_EQ(gen.error(), R"(invalid location variable for pipeline stage)");
 }
 
@@ -405,23 +377,19 @@ TEST_F(HlslGeneratorImplTest_EntryPoint,
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("coord", ast::StorageClass::kInput, &vec4));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(
-      create<ast::BuiltinDecoration>(ast::Builtin::kFragCoord, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(
+      {create<ast::BuiltinDecoration>(ast::Builtin::kFragCoord, Source{})});
 
   auto* depth_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("depth", ast::StorageClass::kOutput, &f32));
-  decos.push_back(
-      create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{}));
-  depth_var->set_decorations(std::move(decos));
+  depth_var->set_decorations(
+      {create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{})});
 
   td.RegisterVariableForTesting(coord_var);
   td.RegisterVariableForTesting(depth_var);
 
-  mod.AddGlobalVariable(std::move(coord_var));
-  mod.AddGlobalVariable(std::move(depth_var));
+  mod.AddGlobalVariable(coord_var);
+  mod.AddGlobalVariable(depth_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -431,18 +399,16 @@ TEST_F(HlslGeneratorImplTest_EntryPoint,
           create<ast::IdentifierExpression>("coord"),
           create<ast::IdentifierExpression>("x"))));
 
-  auto* func = create<ast::Function>("main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
-  auto* func_ptr = func;
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   std::unordered_set<std::string> globals;
 
   ASSERT_TRUE(td.Determine()) << td.error();
-  ASSERT_TRUE(gen.EmitEntryPointData(out, func_ptr, globals)) << gen.error();
+  ASSERT_TRUE(gen.EmitEntryPointData(out, func, globals)) << gen.error();
   EXPECT_EQ(result(), R"(struct main_in {
   vector<float, 4> coord : SV_Position;
 };
diff --git a/src/writer/hlsl/generator_impl_function_test.cc b/src/writer/hlsl/generator_impl_function_test.cc
index d987ff3ae2..9d84e94253 100644
--- a/src/writer/hlsl/generator_impl_function_test.cc
+++ b/src/writer/hlsl/generator_impl_function_test.cc
@@ -59,10 +59,10 @@ TEST_F(HlslGeneratorImplTest_Function, Emit_Function) {
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("my_func", ast::VariableList{}, &void_type,
-                                     std::move(body));
+  auto* func =
+      create<ast::Function>("my_func", ast::VariableList{}, &void_type, body);
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -79,9 +79,9 @@ TEST_F(HlslGeneratorImplTest_Function, Emit_Function_Name_Collision) {
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
   auto* func = create<ast::Function>("GeometryShader", ast::VariableList{},
-                                     &void_type, std::move(body));
+                                     &void_type, body);
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -104,10 +104,9 @@ TEST_F(HlslGeneratorImplTest_Function, Emit_Function_WithParams) {
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("my_func", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("my_func", params, &void_type, body);
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -125,21 +124,17 @@ TEST_F(HlslGeneratorImplTest_Function,
 
   auto* foo_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("foo", ast::StorageClass::kInput, &f32));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  foo_var->set_decorations(std::move(decos));
+  foo_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
 
   auto* bar_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("bar", ast::StorageClass::kOutput, &f32));
-  decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations({create<ast::LocationDecoration>(1, Source{})});
 
   td.RegisterVariableForTesting(foo_var);
   td.RegisterVariableForTesting(bar_var);
 
-  mod.AddGlobalVariable(std::move(foo_var));
-  mod.AddGlobalVariable(std::move(bar_var));
+  mod.AddGlobalVariable(foo_var);
+  mod.AddGlobalVariable(bar_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -147,12 +142,11 @@ TEST_F(HlslGeneratorImplTest_Function,
       create<ast::IdentifierExpression>("bar"),
       create<ast::IdentifierExpression>("foo")));
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -182,22 +176,19 @@ TEST_F(HlslGeneratorImplTest_Function,
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("coord", ast::StorageClass::kInput, &vec4));
 
-  ast::VariableDecorationList decos;
-  decos.push_back(
-      create<ast::BuiltinDecoration>(ast::Builtin::kFragCoord, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(
+      {create<ast::BuiltinDecoration>(ast::Builtin::kFragCoord, Source{})});
 
   auto* depth_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("depth", ast::StorageClass::kOutput, &f32));
-  decos.push_back(
-      create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{}));
-  depth_var->set_decorations(std::move(decos));
+  depth_var->set_decorations(
+      {create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{})});
 
   td.RegisterVariableForTesting(coord_var);
   td.RegisterVariableForTesting(depth_var);
 
-  mod.AddGlobalVariable(std::move(coord_var));
-  mod.AddGlobalVariable(std::move(depth_var));
+  mod.AddGlobalVariable(coord_var);
+  mod.AddGlobalVariable(depth_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -207,12 +198,11 @@ TEST_F(HlslGeneratorImplTest_Function,
           create<ast::IdentifierExpression>("coord"),
           create<ast::IdentifierExpression>("x"))));
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -245,10 +235,10 @@ TEST_F(HlslGeneratorImplTest_Function,
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(1, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ast::VariableList params;
   auto* var = create<ast::Variable>("v", ast::StorageClass::kFunction, &f32);
@@ -257,14 +247,13 @@ TEST_F(HlslGeneratorImplTest_Function,
       create<ast::IdentifierExpression>("x")));
 
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -291,9 +280,9 @@ TEST_F(HlslGeneratorImplTest_Function,
       "coord", &vec4, ast::StructMemberDecorationList{}));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Uniforms", std::move(str));
+  ast::type::StructType s("Uniforms", str);
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("uniforms", ast::StorageClass::kUniform, &s));
@@ -303,10 +292,10 @@ TEST_F(HlslGeneratorImplTest_Function,
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(1, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ast::VariableList params;
   auto* var = create<ast::Variable>("v", ast::StorageClass::kFunction, &f32);
@@ -317,14 +306,13 @@ TEST_F(HlslGeneratorImplTest_Function,
       create<ast::IdentifierExpression>("x")));
 
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -351,16 +339,16 @@ TEST_F(HlslGeneratorImplTest_Function,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("a", &i32, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
   ast::type::AccessControlType ac(ast::AccessControl::kReadWrite, &s);
 
   auto* coord_var = create<ast::DecoratedVariable>(
@@ -369,10 +357,10 @@ TEST_F(HlslGeneratorImplTest_Function,
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(1, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ast::VariableList params;
   auto* var = create<ast::Variable>("v", ast::StorageClass::kFunction, &f32);
@@ -381,14 +369,13 @@ TEST_F(HlslGeneratorImplTest_Function,
       create<ast::IdentifierExpression>("b")));
 
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -411,16 +398,16 @@ TEST_F(HlslGeneratorImplTest_Function,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("a", &i32, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
   ast::type::AccessControlType ac(ast::AccessControl::kReadOnly, &s);
 
   auto* coord_var = create<ast::DecoratedVariable>(
@@ -429,10 +416,10 @@ TEST_F(HlslGeneratorImplTest_Function,
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(1, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ast::VariableList params;
   auto* var = create<ast::Variable>("v", ast::StorageClass::kFunction, &f32);
@@ -441,14 +428,13 @@ TEST_F(HlslGeneratorImplTest_Function,
       create<ast::IdentifierExpression>("b")));
 
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -471,16 +457,16 @@ TEST_F(HlslGeneratorImplTest_Function,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("a", &i32, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
   ast::type::AccessControlType ac(ast::AccessControl::kReadWrite, &s);
 
   auto* coord_var = create<ast::DecoratedVariable>(
@@ -489,11 +475,11 @@ TEST_F(HlslGeneratorImplTest_Function,
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(1, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(coord_var);
 
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ast::VariableList params;
   auto* assign = create<ast::AssignmentStatement>(
@@ -504,14 +490,13 @@ TEST_F(HlslGeneratorImplTest_Function,
           create<ast::FloatLiteral>(&f32, 2.0f)));
 
   auto* body = create<ast::BlockStatement>();
-  body->append(std::move(assign));
+  body->append(assign);
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -533,28 +518,23 @@ TEST_F(
 
   auto* foo_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("foo", ast::StorageClass::kInput, &f32));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  foo_var->set_decorations(std::move(decos));
+  foo_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
 
   auto* bar_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("bar", ast::StorageClass::kOutput, &f32));
-  decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations({create<ast::LocationDecoration>(1, Source{})});
 
   auto* val_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("val", ast::StorageClass::kOutput, &f32));
-  decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  val_var->set_decorations(std::move(decos));
+  val_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
 
   td.RegisterVariableForTesting(foo_var);
   td.RegisterVariableForTesting(bar_var);
   td.RegisterVariableForTesting(val_var);
 
-  mod.AddGlobalVariable(std::move(foo_var));
-  mod.AddGlobalVariable(std::move(bar_var));
-  mod.AddGlobalVariable(std::move(val_var));
+  mod.AddGlobalVariable(foo_var);
+  mod.AddGlobalVariable(bar_var);
+  mod.AddGlobalVariable(val_var);
 
   ast::VariableList params;
   params.push_back(
@@ -569,10 +549,9 @@ TEST_F(
       create<ast::IdentifierExpression>("param")));
   body->append(
       create<ast::ReturnStatement>(create<ast::IdentifierExpression>("foo")));
-  auto* sub_func = create<ast::Function>("sub_func", std::move(params), &f32,
-                                         std::move(body));
+  auto* sub_func = create<ast::Function>("sub_func", params, &f32, body);
 
-  mod.AddFunction(std::move(sub_func));
+  mod.AddFunction(sub_func);
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
@@ -582,14 +561,13 @@ TEST_F(
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>("bar"),
       create<ast::CallExpression>(create<ast::IdentifierExpression>("sub_func"),
-                                  std::move(expr))));
+                                  expr)));
   body->append(create<ast::ReturnStatement>());
-  auto* func_1 = create<ast::Function>("ep_1", std::move(params), &void_type,
-                                       std::move(body));
+  auto* func_1 = create<ast::Function>("ep_1", params, &void_type, body);
   func_1->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func_1));
+  mod.AddFunction(func_1);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -629,11 +607,11 @@ TEST_F(HlslGeneratorImplTest_Function,
   ast::VariableDecorationList decos;
   decos.push_back(
       create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{}));
-  depth_var->set_decorations(std::move(decos));
+  depth_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(depth_var);
 
-  mod.AddGlobalVariable(std::move(depth_var));
+  mod.AddGlobalVariable(depth_var);
 
   ast::VariableList params;
   params.push_back(
@@ -642,10 +620,9 @@ TEST_F(HlslGeneratorImplTest_Function,
   auto* body = create<ast::BlockStatement>();
   body->append(
       create<ast::ReturnStatement>(create<ast::IdentifierExpression>("param")));
-  auto* sub_func = create<ast::Function>("sub_func", std::move(params), &f32,
-                                         std::move(body));
+  auto* sub_func = create<ast::Function>("sub_func", params, &f32, body);
 
-  mod.AddFunction(std::move(sub_func));
+  mod.AddFunction(sub_func);
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
@@ -655,14 +632,13 @@ TEST_F(HlslGeneratorImplTest_Function,
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>("depth"),
       create<ast::CallExpression>(create<ast::IdentifierExpression>("sub_func"),
-                                  std::move(expr))));
+                                  expr)));
   body->append(create<ast::ReturnStatement>());
-  auto* func_1 = create<ast::Function>("ep_1", std::move(params), &void_type,
-                                       std::move(body));
+  auto* func_1 = create<ast::Function>("ep_1", params, &void_type, body);
   func_1->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func_1));
+  mod.AddFunction(func_1);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -692,23 +668,19 @@ TEST_F(
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("coord", ast::StorageClass::kInput, &vec4));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(
-      create<ast::BuiltinDecoration>(ast::Builtin::kFragCoord, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(
+      {create<ast::BuiltinDecoration>(ast::Builtin::kFragCoord, Source{})});
 
   auto* depth_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("depth", ast::StorageClass::kOutput, &f32));
-  decos.push_back(
-      create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{}));
-  depth_var->set_decorations(std::move(decos));
+  depth_var->set_decorations(
+      {create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{})});
 
   td.RegisterVariableForTesting(coord_var);
   td.RegisterVariableForTesting(depth_var);
 
-  mod.AddGlobalVariable(std::move(coord_var));
-  mod.AddGlobalVariable(std::move(depth_var));
+  mod.AddGlobalVariable(coord_var);
+  mod.AddGlobalVariable(depth_var);
 
   ast::VariableList params;
   params.push_back(
@@ -722,10 +694,9 @@ TEST_F(
           create<ast::IdentifierExpression>("x"))));
   body->append(
       create<ast::ReturnStatement>(create<ast::IdentifierExpression>("param")));
-  auto* sub_func = create<ast::Function>("sub_func", std::move(params), &f32,
-                                         std::move(body));
+  auto* sub_func = create<ast::Function>("sub_func", params, &f32, body);
 
-  mod.AddFunction(std::move(sub_func));
+  mod.AddFunction(sub_func);
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
@@ -735,14 +706,13 @@ TEST_F(
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>("depth"),
       create<ast::CallExpression>(create<ast::IdentifierExpression>("sub_func"),
-                                  std::move(expr))));
+                                  expr)));
   body->append(create<ast::ReturnStatement>());
-  auto* func_1 = create<ast::Function>("ep_1", std::move(params), &void_type,
-                                       std::move(body));
+  auto* func_1 = create<ast::Function>("ep_1", params, &void_type, body);
   func_1->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func_1));
+  mod.AddFunction(func_1);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -780,11 +750,11 @@ TEST_F(HlslGeneratorImplTest_Function,
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(1, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(coord_var);
 
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ast::VariableList params;
   params.push_back(
@@ -795,10 +765,9 @@ TEST_F(HlslGeneratorImplTest_Function,
       create<ast::ReturnStatement>(create<ast::MemberAccessorExpression>(
           create<ast::IdentifierExpression>("coord"),
           create<ast::IdentifierExpression>("x"))));
-  auto* sub_func = create<ast::Function>("sub_func", std::move(params), &f32,
-                                         std::move(body));
+  auto* sub_func = create<ast::Function>("sub_func", params, &f32, body);
 
-  mod.AddFunction(std::move(sub_func));
+  mod.AddFunction(sub_func);
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
@@ -806,17 +775,16 @@ TEST_F(HlslGeneratorImplTest_Function,
 
   auto* var = create<ast::Variable>("v", ast::StorageClass::kFunction, &f32);
   var->set_constructor(create<ast::CallExpression>(
-      create<ast::IdentifierExpression>("sub_func"), std::move(expr)));
+      create<ast::IdentifierExpression>("sub_func"), expr));
 
   body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -848,11 +816,11 @@ TEST_F(HlslGeneratorImplTest_Function,
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(1, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(coord_var);
 
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ast::VariableList params;
   params.push_back(
@@ -863,10 +831,9 @@ TEST_F(HlslGeneratorImplTest_Function,
       create<ast::ReturnStatement>(create<ast::MemberAccessorExpression>(
           create<ast::IdentifierExpression>("coord"),
           create<ast::IdentifierExpression>("x"))));
-  auto* sub_func = create<ast::Function>("sub_func", std::move(params), &f32,
-                                         std::move(body));
+  auto* sub_func = create<ast::Function>("sub_func", params, &f32, body);
 
-  mod.AddFunction(std::move(sub_func));
+  mod.AddFunction(sub_func);
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
@@ -874,17 +841,16 @@ TEST_F(HlslGeneratorImplTest_Function,
 
   auto* var = create<ast::Variable>("v", ast::StorageClass::kFunction, &f32);
   var->set_constructor(create<ast::CallExpression>(
-      create<ast::IdentifierExpression>("sub_func"), std::move(expr)));
+      create<ast::IdentifierExpression>("sub_func"), expr));
 
   body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -912,10 +878,10 @@ TEST_F(HlslGeneratorImplTest_Function,
       create<ast::Variable>("bar", ast::StorageClass::kOutput, &f32));
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(bar_var);
-  mod.AddGlobalVariable(std::move(bar_var));
+  mod.AddGlobalVariable(bar_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -933,15 +899,14 @@ TEST_F(HlslGeneratorImplTest_Function,
                                         create<ast::SintLiteral>(&i32, 1)),
                                     create<ast::ScalarConstructorExpression>(
                                         create<ast::SintLiteral>(&i32, 1))),
-      std::move(list)));
+      list));
 
   body->append(create<ast::ReturnStatement>());
-  auto* func_1 = create<ast::Function>("ep_1", std::move(params), &void_type,
-                                       std::move(body));
+  auto* func_1 = create<ast::Function>("ep_1", params, &void_type, body);
   func_1->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func_1));
+  mod.AddFunction(func_1);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -970,7 +935,7 @@ TEST_F(HlslGeneratorImplTest_Function,
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
   EXPECT_EQ(result(), R"(void GeometryShader_tint_0() {
@@ -986,12 +951,11 @@ TEST_F(HlslGeneratorImplTest_Function,
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -1010,13 +974,12 @@ TEST_F(HlslGeneratorImplTest_Function,
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
   func->add_decoration(create<ast::WorkgroupDecoration>(2u, 4u, 6u, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -1039,10 +1002,9 @@ TEST_F(HlslGeneratorImplTest_Function, Emit_Function_WithArrayParams) {
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("my_func", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("my_func", params, &void_type, body);
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
@@ -1077,14 +1039,14 @@ TEST_F(HlslGeneratorImplTest_Function,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("d", &f32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("d", &f32, a_deco));
 
   ast::StructDecorationList s_decos;
   s_decos.push_back(create<ast::StructBlockDecoration>(Source{}));
 
-  auto* str = create<ast::Struct>(std::move(s_decos), std::move(members));
+  auto* str = create<ast::Struct>(s_decos, members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
   ast::type::AccessControlType ac(ast::AccessControl::kReadWrite, &s);
 
   auto* data_var = create<ast::DecoratedVariable>(
@@ -1093,11 +1055,11 @@ TEST_F(HlslGeneratorImplTest_Function,
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(0, Source{}));
-  data_var->set_decorations(std::move(decos));
+  data_var->set_decorations(decos);
 
   mod.AddConstructedType(&s);
   td.RegisterVariableForTesting(data_var);
-  mod.AddGlobalVariable(std::move(data_var));
+  mod.AddGlobalVariable(data_var);
 
   {
     ast::VariableList params;
@@ -1107,14 +1069,13 @@ TEST_F(HlslGeneratorImplTest_Function,
         create<ast::IdentifierExpression>("d")));
 
     auto* body = create<ast::BlockStatement>();
-    body->append(create<ast::VariableDeclStatement>(std::move(var)));
+    body->append(create<ast::VariableDeclStatement>(var));
     body->append(create<ast::ReturnStatement>());
-    auto* func = create<ast::Function>("a", std::move(params), &void_type,
-                                       std::move(body));
+    auto* func = create<ast::Function>("a", params, &void_type, body);
     func->add_decoration(
         create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
 
-    mod.AddFunction(std::move(func));
+    mod.AddFunction(func);
   }
 
   {
@@ -1125,14 +1086,13 @@ TEST_F(HlslGeneratorImplTest_Function,
         create<ast::IdentifierExpression>("d")));
 
     auto* body = create<ast::BlockStatement>();
-    body->append(create<ast::VariableDeclStatement>(std::move(var)));
+    body->append(create<ast::VariableDeclStatement>(var));
     body->append(create<ast::ReturnStatement>());
-    auto* func = create<ast::Function>("b", std::move(params), &void_type,
-                                       std::move(body));
+    auto* func = create<ast::Function>("b", params, &void_type, body);
     func->add_decoration(
         create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
 
-    mod.AddFunction(std::move(func));
+    mod.AddFunction(func);
   }
 
   ASSERT_TRUE(td.Determine()) << td.error();
diff --git a/src/writer/hlsl/generator_impl_if_test.cc b/src/writer/hlsl/generator_impl_if_test.cc
index e494c8dba3..6e9bd7a362 100644
--- a/src/writer/hlsl/generator_impl_if_test.cc
+++ b/src/writer/hlsl/generator_impl_if_test.cc
@@ -31,7 +31,7 @@ TEST_F(HlslGeneratorImplTest_If, Emit_If) {
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
 
-  ast::IfStatement i(std::move(cond), std::move(body));
+  ast::IfStatement i(cond, body);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.EmitStatement(out, &i)) << gen.error();
@@ -47,15 +47,14 @@ TEST_F(HlslGeneratorImplTest_If, Emit_IfWithElseIf) {
   else_body->append(create<ast::ReturnStatement>());
 
   ast::ElseStatementList elses;
-  elses.push_back(
-      create<ast::ElseStatement>(std::move(else_cond), std::move(else_body)));
+  elses.push_back(create<ast::ElseStatement>(else_cond, else_body));
 
   auto* cond = create<ast::IdentifierExpression>("cond");
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
 
-  ast::IfStatement i(std::move(cond), std::move(body));
-  i.set_else_statements(std::move(elses));
+  ast::IfStatement i(cond, body);
+  i.set_else_statements(elses);
 
   gen.increment_indent();
 
@@ -75,14 +74,14 @@ TEST_F(HlslGeneratorImplTest_If, Emit_IfWithElse) {
   else_body->append(create<ast::ReturnStatement>());
 
   ast::ElseStatementList elses;
-  elses.push_back(create<ast::ElseStatement>(std::move(else_body)));
+  elses.push_back(create<ast::ElseStatement>(else_body));
 
   auto* cond = create<ast::IdentifierExpression>("cond");
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
 
-  ast::IfStatement i(std::move(cond), std::move(body));
-  i.set_else_statements(std::move(elses));
+  ast::IfStatement i(cond, body);
+  i.set_else_statements(elses);
 
   gen.increment_indent();
 
@@ -105,16 +104,15 @@ TEST_F(HlslGeneratorImplTest_If, Emit_IfWithMultiple) {
   else_body_2->append(create<ast::ReturnStatement>());
 
   ast::ElseStatementList elses;
-  elses.push_back(
-      create<ast::ElseStatement>(std::move(else_cond), std::move(else_body)));
-  elses.push_back(create<ast::ElseStatement>(std::move(else_body_2)));
+  elses.push_back(create<ast::ElseStatement>(else_cond, else_body));
+  elses.push_back(create<ast::ElseStatement>(else_body_2));
 
   auto* cond = create<ast::IdentifierExpression>("cond");
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
 
-  ast::IfStatement i(std::move(cond), std::move(body));
-  i.set_else_statements(std::move(elses));
+  ast::IfStatement i(cond, body);
+  i.set_else_statements(elses);
 
   gen.increment_indent();
 
diff --git a/src/writer/hlsl/generator_impl_import_test.cc b/src/writer/hlsl/generator_impl_import_test.cc
index aa6f7d51ad..bfb5a85e6f 100644
--- a/src/writer/hlsl/generator_impl_import_test.cc
+++ b/src/writer/hlsl/generator_impl_import_test.cc
@@ -58,7 +58,7 @@ TEST_P(HlslImportData_SingleParamTest, FloatScalar) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  ast::CallExpression expr(std::move(ident), std::move(params));
+  ast::CallExpression expr(ident, params);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
   ASSERT_TRUE(gen.EmitCall(pre, out, &expr)) << gen.error();
@@ -103,7 +103,7 @@ TEST_P(HlslImportData_SingleIntParamTest, IntScalar) {
       create<ast::SintLiteral>(&i32, 1)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(param.name),
-                           std::move(params));
+                           params);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
   ASSERT_TRUE(gen.EmitCall(pre, out, &expr)) << gen.error();
@@ -126,7 +126,7 @@ TEST_P(HlslImportData_DualParamTest, FloatScalar) {
       create<ast::FloatLiteral>(&f32, 2.f)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(param.name),
-                           std::move(params));
+                           params);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
   ASSERT_TRUE(gen.EmitCall(pre, out, &expr)) << gen.error();
@@ -150,29 +150,29 @@ TEST_P(HlslImportData_DualParam_VectorTest, FloatVector) {
   ast::type::F32Type f32;
   ast::type::VectorType vec(&f32, 3);
 
-  ast::ExpressionList type_params;
-  type_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  type_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.f)));
-  type_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.f)));
-
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(type_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(
+      &vec, ast::ExpressionList{
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, 1.f)),
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, 2.f)),
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, 3.f)),
+            }));
 
-  type_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 4.f)));
-  type_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 5.f)));
-  type_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 6.f)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(type_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(
+      &vec, ast::ExpressionList{
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, 4.f)),
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, 5.f)),
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, 6.f)),
+            }));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(param.name),
-                           std::move(params));
+                           params);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
   ASSERT_TRUE(gen.EmitCall(pre, out, &expr)) << gen.error();
@@ -198,7 +198,7 @@ TEST_P(HlslImportData_DualParam_Int_Test, IntScalar) {
       create<ast::SintLiteral>(&i32, 2)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(param.name),
-                           std::move(params));
+                           params);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
   ASSERT_TRUE(gen.EmitCall(pre, out, &expr)) << gen.error();
@@ -224,7 +224,7 @@ TEST_P(HlslImportData_TripleParamTest, FloatScalar) {
       create<ast::FloatLiteral>(&f32, 3.f)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(param.name),
-                           std::move(params));
+                           params);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
   ASSERT_TRUE(gen.EmitCall(pre, out, &expr)) << gen.error();
@@ -258,7 +258,7 @@ TEST_P(HlslImportData_TripleParam_Int_Test, IntScalar) {
       create<ast::SintLiteral>(&i32, 3)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(param.name),
-                           std::move(params));
+                           params);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
   ASSERT_TRUE(gen.EmitCall(pre, out, &expr)) << gen.error();
@@ -278,9 +278,9 @@ TEST_F(HlslGeneratorImplTest_Import, HlslImportData_Determinant) {
   params.push_back(create<ast::IdentifierExpression>("var"));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>("determinant"),
-                           std::move(params));
+                           params);
 
-  mod.AddGlobalVariable(std::move(var));
+  mod.AddGlobalVariable(var);
 
   // Register the global
   ASSERT_TRUE(td.Determine()) << td.error();
diff --git a/src/writer/hlsl/generator_impl_intrinsic_test.cc b/src/writer/hlsl/generator_impl_intrinsic_test.cc
index 38aebb3de0..b47a1e3b9a 100644
--- a/src/writer/hlsl/generator_impl_intrinsic_test.cc
+++ b/src/writer/hlsl/generator_impl_intrinsic_test.cc
@@ -84,13 +84,13 @@ TEST_F(HlslGeneratorImplTest_Intrinsic, DISABLED_Intrinsic_OuterProduct) {
   params.push_back(create<ast::IdentifierExpression>("b"));
 
   ast::CallExpression call(create<ast::IdentifierExpression>("outer_product"),
-                           std::move(params));
+                           params);
 
   td.RegisterVariableForTesting(a);
   td.RegisterVariableForTesting(b);
 
-  mod.AddGlobalVariable(std::move(a));
-  mod.AddGlobalVariable(std::move(b));
+  mod.AddGlobalVariable(a);
+  mod.AddGlobalVariable(b);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(td.DetermineResultType(&call)) << td.error();
@@ -112,8 +112,7 @@ TEST_F(HlslGeneratorImplTest_Intrinsic, Intrinsic_Call) {
   params.push_back(create<ast::IdentifierExpression>("param1"));
   params.push_back(create<ast::IdentifierExpression>("param2"));
 
-  ast::CallExpression call(create<ast::IdentifierExpression>("dot"),
-                           std::move(params));
+  ast::CallExpression call(create<ast::IdentifierExpression>("dot"), params);
 
   ast::Variable v1("param1", ast::StorageClass::kFunction, &vec);
   ast::Variable v2("param2", ast::StorageClass::kFunction, &vec);
diff --git a/src/writer/hlsl/generator_impl_loop_test.cc b/src/writer/hlsl/generator_impl_loop_test.cc
index 05579dfebf..71bdd2020a 100644
--- a/src/writer/hlsl/generator_impl_loop_test.cc
+++ b/src/writer/hlsl/generator_impl_loop_test.cc
@@ -37,7 +37,7 @@ TEST_F(HlslGeneratorImplTest_Loop, Emit_Loop) {
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::DiscardStatement>());
 
-  ast::LoopStatement l(std::move(body), {});
+  ast::LoopStatement l(body, {});
   gen.increment_indent();
 
   ASSERT_TRUE(gen.EmitStatement(out, &l)) << gen.error();
@@ -54,7 +54,7 @@ TEST_F(HlslGeneratorImplTest_Loop, Emit_LoopWithContinuing) {
   auto* continuing = create<ast::BlockStatement>();
   continuing->append(create<ast::ReturnStatement>());
 
-  ast::LoopStatement l(std::move(body), std::move(continuing));
+  ast::LoopStatement l(body, continuing);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.EmitStatement(out, &l)) << gen.error();
@@ -81,20 +81,18 @@ TEST_F(HlslGeneratorImplTest_Loop, Emit_LoopNestedWithContinuing) {
   auto* continuing = create<ast::BlockStatement>();
   continuing->append(create<ast::ReturnStatement>());
 
-  auto* inner =
-      create<ast::LoopStatement>(std::move(body), std::move(continuing));
+  auto* inner = create<ast::LoopStatement>(body, continuing);
 
   body = create<ast::BlockStatement>();
-  body->append(std::move(inner));
+  body->append(inner);
 
   auto* lhs = create<ast::IdentifierExpression>("lhs");
   auto* rhs = create<ast::IdentifierExpression>("rhs");
 
   continuing = create<ast::BlockStatement>();
-  continuing->append(
-      create<ast::AssignmentStatement>(std::move(lhs), std::move(rhs)));
+  continuing->append(create<ast::AssignmentStatement>(lhs, rhs));
 
-  ast::LoopStatement outer(std::move(body), std::move(continuing));
+  ast::LoopStatement outer(body, continuing);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.EmitStatement(out, &outer)) << gen.error();
@@ -151,7 +149,7 @@ TEST_F(HlslGeneratorImplTest_Loop, Emit_LoopWithVarUsedInContinuing) {
       create<ast::FloatLiteral>(&f32, 2.4)));
 
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::VariableDeclStatement>(
       create<ast::Variable>("other", ast::StorageClass::kFunction, &f32)));
 
@@ -159,10 +157,9 @@ TEST_F(HlslGeneratorImplTest_Loop, Emit_LoopWithVarUsedInContinuing) {
   auto* rhs = create<ast::IdentifierExpression>("rhs");
 
   auto* continuing = create<ast::BlockStatement>();
-  continuing->append(
-      create<ast::AssignmentStatement>(std::move(lhs), std::move(rhs)));
+  continuing->append(create<ast::AssignmentStatement>(lhs, rhs));
 
-  ast::LoopStatement outer(std::move(body), std::move(continuing));
+  ast::LoopStatement outer(body, continuing);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.EmitStatement(out, &outer)) << gen.error();
diff --git a/src/writer/hlsl/generator_impl_member_accessor_test.cc b/src/writer/hlsl/generator_impl_member_accessor_test.cc
index 74ea63faf2..7005f7e0fa 100644
--- a/src/writer/hlsl/generator_impl_member_accessor_test.cc
+++ b/src/writer/hlsl/generator_impl_member_accessor_test.cc
@@ -52,12 +52,12 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor, EmitExpression_MemberAccessor) {
   ast::StructMemberList members;
   ast::StructMemberDecorationList deco;
   deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("mem", &f32, std::move(deco)));
+  members.push_back(create<ast::StructMember>("mem", &f32, deco));
 
   auto* strct = create<ast::Struct>();
-  strct->set_members(std::move(members));
+  strct->set_members(members);
 
-  ast::type::StructType s("Str", std::move(strct));
+  ast::type::StructType s("Str", strct);
 
   auto* str_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("str", ast::StorageClass::kPrivate, &s));
@@ -65,11 +65,11 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor, EmitExpression_MemberAccessor) {
   auto* str = create<ast::IdentifierExpression>("str");
   auto* mem = create<ast::IdentifierExpression>("mem");
 
-  ast::MemberAccessorExpression expr(std::move(str), std::move(mem));
+  ast::MemberAccessorExpression expr(str, mem);
 
   td.RegisterVariableForTesting(str_var);
   gen.register_global(str_var);
-  mod.AddGlobalVariable(std::move(str_var));
+  mod.AddGlobalVariable(str_var);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
   ASSERT_TRUE(gen.EmitExpression(pre, out, &expr)) << gen.error();
@@ -92,16 +92,16 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("a", &i32, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("data", ast::StorageClass::kStorageBuffer, &s));
@@ -111,7 +111,7 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(td.DetermineResultType(&expr));
@@ -136,16 +136,16 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("a", &i32, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("data", ast::StorageClass::kStorageBuffer, &s));
@@ -155,7 +155,7 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(td.DetermineResultType(&expr));
@@ -180,19 +180,19 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::type::I32Type i32;
   ast::type::MatrixType mat(&f32, 3, 2);
 
-  ast::StructMemberList members;
-  ast::StructMemberDecorationList a_deco;
-  a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("z", &i32, std::move(a_deco)));
-
-  ast::StructMemberDecorationList b_deco;
-  b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("a", &mat, std::move(b_deco)));
-
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members({
+      create<ast::StructMember>(
+          "z", &i32,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(0, Source{})}),
+      create<ast::StructMember>(
+          "a", &mat,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(4, Source{})}),
+  });
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
 
   auto* b_var = create<ast::Variable>("b", ast::StorageClass::kPrivate, &mat);
 
@@ -204,14 +204,14 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
       create<ast::IdentifierExpression>("a"));
   auto* rhs = create<ast::IdentifierExpression>("b");
 
-  ast::AssignmentStatement assign(std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement assign(lhs, rhs);
 
   td.RegisterVariableForTesting(coord_var);
   td.RegisterVariableForTesting(b_var);
   gen.register_global(coord_var);
   gen.register_global(b_var);
-  mod.AddGlobalVariable(std::move(coord_var));
-  mod.AddGlobalVariable(std::move(b_var));
+  mod.AddGlobalVariable(coord_var);
+  mod.AddGlobalVariable(b_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(td.DetermineResultType(&assign));
@@ -243,16 +243,16 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("z", &i32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("z", &i32, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("a", &mat, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("a", &mat, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("data", ast::StorageClass::kStorageBuffer, &s));
@@ -263,11 +263,11 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   auto* rhs =
       create<ast::TypeConstructorExpression>(&mat, ast::ExpressionList{});
 
-  ast::AssignmentStatement assign(std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement assign(lhs, rhs);
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(td.DetermineResultType(&assign));
@@ -299,16 +299,16 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("z", &i32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("z", &i32, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("a", &mat, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("a", &mat, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("data", ast::StorageClass::kStorageBuffer, &s));
@@ -318,7 +318,7 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(td.DetermineResultType(&expr));
@@ -350,16 +350,16 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("z", &i32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("z", &i32, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("a", &mat, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("a", &mat, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("data", ast::StorageClass::kStorageBuffer, &s));
@@ -369,7 +369,7 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(td.DetermineResultType(&expr));
@@ -398,12 +398,12 @@ TEST_F(
   ast::StructMemberList members;
   ast::StructMemberDecorationList deco;
   deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &mat, std::move(deco)));
+  members.push_back(create<ast::StructMember>("a", &mat, deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("data", ast::StorageClass::kStorageBuffer, &s));
@@ -413,7 +413,7 @@ TEST_F(
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(td.DetermineResultType(&expr));
@@ -441,16 +441,16 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("z", &i32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("z", &i32, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(16, Source{}));
-  members.push_back(create<ast::StructMember>("a", &mat, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("a", &mat, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("data", ast::StorageClass::kStorageBuffer, &s));
@@ -467,7 +467,7 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(td.DetermineResultType(&expr));
@@ -488,19 +488,17 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::type::F32Type f32;
   ast::type::I32Type i32;
   ast::type::ArrayType ary(&i32, 5);
-  ast::ArrayDecorationList decos;
-  decos.push_back(create<ast::StrideDecoration>(4, Source{}));
-  ary.set_decorations(std::move(decos));
+  ary.set_decorations({create<ast::StrideDecoration>(4, Source{})});
 
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &ary, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("a", &ary, a_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("data", ast::StorageClass::kStorageBuffer, &s));
@@ -514,7 +512,7 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
@@ -535,19 +533,17 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::type::F32Type f32;
   ast::type::I32Type i32;
   ast::type::ArrayType ary(&i32, 5);
-  ast::ArrayDecorationList decos;
-  decos.push_back(create<ast::StrideDecoration>(4, Source{}));
-  ary.set_decorations(std::move(decos));
+  ary.set_decorations({create<ast::StrideDecoration>(4, Source{})});
 
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &ary, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("a", &ary, a_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("data", ast::StorageClass::kStorageBuffer, &s));
@@ -569,7 +565,7 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
@@ -595,23 +591,23 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("a", &i32, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("data", ast::StorageClass::kStorageBuffer, &s));
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -620,7 +616,7 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
       create<ast::IdentifierExpression>("b"));
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0f));
-  ast::AssignmentStatement assign(std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement assign(lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&assign));
   ASSERT_TRUE(gen.EmitStatement(out, &assign)) << gen.error();
@@ -641,26 +637,24 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::type::F32Type f32;
   ast::type::I32Type i32;
   ast::type::ArrayType ary(&i32, 5);
-  ast::ArrayDecorationList decos;
-  decos.push_back(create<ast::StrideDecoration>(4, Source{}));
-  ary.set_decorations(std::move(decos));
+  ary.set_decorations({create<ast::StrideDecoration>(4, Source{})});
 
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &ary, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("a", &ary, a_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("data", ast::StorageClass::kStorageBuffer, &s));
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -672,7 +666,7 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
           create<ast::SintLiteral>(&i32, 2)));
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
-  ast::AssignmentStatement assign(std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement assign(lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&assign)) << td.error();
   ASSERT_TRUE(gen.EmitStatement(out, &assign)) << gen.error();
@@ -697,23 +691,23 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("a", &i32, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("data", ast::StorageClass::kStorageBuffer, &s));
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -722,7 +716,7 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
       create<ast::IdentifierExpression>("a"));
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2));
-  ast::AssignmentStatement assign(std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement assign(lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&assign));
   ASSERT_TRUE(gen.EmitStatement(out, &assign)) << gen.error();
@@ -749,23 +743,23 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &ivec3, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("a", &ivec3, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(16, Source{}));
-  members.push_back(create<ast::StructMember>("b", &fvec3, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &fvec3, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("data", ast::StorageClass::kStorageBuffer, &s));
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -796,23 +790,23 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &ivec3, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("a", &ivec3, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(16, Source{}));
-  members.push_back(create<ast::StructMember>("b", &fvec3, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &fvec3, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("data", ast::StorageClass::kStorageBuffer, &s));
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -820,16 +814,16 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   auto* lit2 = create<ast::FloatLiteral>(&f32, 2.f);
   auto* lit3 = create<ast::FloatLiteral>(&f32, 3.f);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit1)));
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit2)));
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit3)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit1));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit2));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit3));
 
   auto* lhs = create<ast::MemberAccessorExpression>(
       create<ast::IdentifierExpression>("data"),
       create<ast::IdentifierExpression>("b"));
-  auto* rhs = create<ast::TypeConstructorExpression>(&fvec3, std::move(values));
+  auto* rhs = create<ast::TypeConstructorExpression>(&fvec3, values);
 
-  ast::AssignmentStatement assign(std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement assign(lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&assign));
   ASSERT_TRUE(gen.EmitStatement(out, &assign)) << gen.error();
@@ -859,38 +853,39 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::type::VectorType ivec3(&i32, 3);
   ast::type::VectorType fvec3(&f32, 3);
 
-  ast::StructMemberList members;
-  ast::StructMemberDecorationList deco;
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &ivec3, std::move(deco)));
-
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(16, Source{}));
-  members.push_back(create<ast::StructMember>("b", &fvec3, std::move(deco)));
-
   auto* data_str = create<ast::Struct>();
-  data_str->set_members(std::move(members));
+  data_str->set_members({
+      create<ast::StructMember>(
+          "a", &ivec3,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(0, Source{})}),
+      create<ast::StructMember>(
+          "b", &fvec3,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(16, Source{})}),
+  });
 
-  ast::type::StructType data("Data", std::move(data_str));
+  ast::type::StructType data("Data", data_str);
 
   ast::type::ArrayType ary(&data, 4);
-  ast::ArrayDecorationList decos;
-  decos.push_back(create<ast::StrideDecoration>(32, Source{}));
-  ary.set_decorations(std::move(decos));
-
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("c", &ary, std::move(deco)));
+  ary.set_decorations({create<ast::StrideDecoration>(32, Source{})});
 
   auto* pre_str = create<ast::Struct>();
-  pre_str->set_members(std::move(members));
+  pre_str->set_members({
+      create<ast::StructMember>(
+          "c", &ary,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(0, Source{})}),
+  });
 
-  ast::type::StructType pre_struct("Pre", std::move(pre_str));
+  ast::type::StructType pre_struct("Pre", pre_str);
 
   auto* coord_var = create<ast::DecoratedVariable>(create<ast::Variable>(
       "data", ast::StorageClass::kStorageBuffer, &pre_struct));
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -930,36 +925,38 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
 
   ast::StructMemberList members;
   ast::StructMemberDecorationList deco;
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &ivec3, std::move(deco)));
-
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(16, Source{}));
-  members.push_back(create<ast::StructMember>("b", &fvec3, std::move(deco)));
 
   auto* data_str = create<ast::Struct>();
-  data_str->set_members(std::move(members));
+  data_str->set_members({
+      create<ast::StructMember>(
+          "a", &ivec3,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(0, Source{})}),
+      create<ast::StructMember>(
+          "b", &fvec3,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(16, Source{})}),
+  });
 
-  ast::type::StructType data("Data", std::move(data_str));
+  ast::type::StructType data("Data", data_str);
 
   ast::type::ArrayType ary(&data, 4);
-  ast::ArrayDecorationList decos;
-  decos.push_back(create<ast::StrideDecoration>(32, Source{}));
-  ary.set_decorations(std::move(decos));
-
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("c", &ary, std::move(deco)));
+  ary.set_decorations({create<ast::StrideDecoration>(32, Source{})});
 
   auto* pre_str = create<ast::Struct>();
-  pre_str->set_members(std::move(members));
+  pre_str->set_members({create<ast::StructMember>(
+      "c", &ary,
+      ast::StructMemberDecorationList{
+          create<ast::StructMemberOffsetDecoration>(0, Source{})})});
 
-  ast::type::StructType pre_struct("Pre", std::move(pre_str));
+  ast::type::StructType pre_struct("Pre", pre_str);
 
   auto* coord_var = create<ast::DecoratedVariable>(create<ast::Variable>(
       "data", ast::StorageClass::kStorageBuffer, &pre_struct));
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -1000,38 +997,37 @@ TEST_F(
   ast::type::VectorType ivec3(&i32, 3);
   ast::type::VectorType fvec3(&f32, 3);
 
-  ast::StructMemberList members;
-  ast::StructMemberDecorationList deco;
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &ivec3, std::move(deco)));
-
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(16, Source{}));
-  members.push_back(create<ast::StructMember>("b", &fvec3, std::move(deco)));
-
   auto* data_str = create<ast::Struct>();
-  data_str->set_members(std::move(members));
+  data_str->set_members({
+      create<ast::StructMember>(
+          "a", &ivec3,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(0, Source{})}),
+      create<ast::StructMember>(
+          "b", &fvec3,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(16, Source{})}),
+  });
 
-  ast::type::StructType data("Data", std::move(data_str));
+  ast::type::StructType data("Data", data_str);
 
   ast::type::ArrayType ary(&data, 4);
-  ast::ArrayDecorationList decos;
-  decos.push_back(create<ast::StrideDecoration>(32, Source{}));
-  ary.set_decorations(std::move(decos));
-
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("c", &ary, std::move(deco)));
+  ary.set_decorations({create<ast::StrideDecoration>(32, Source{})});
 
   auto* pre_str = create<ast::Struct>();
-  pre_str->set_members(std::move(members));
+  pre_str->set_members({create<ast::StructMember>(
+      "c", &ary,
+      ast::StructMemberDecorationList{
+          create<ast::StructMemberOffsetDecoration>(0, Source{})})});
 
-  ast::type::StructType pre_struct("Pre", std::move(pre_str));
+  ast::type::StructType pre_struct("Pre", pre_str);
 
   auto* coord_var = create<ast::DecoratedVariable>(create<ast::Variable>(
       "data", ast::StorageClass::kStorageBuffer, &pre_struct));
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -1071,38 +1067,37 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::type::VectorType ivec3(&i32, 3);
   ast::type::VectorType fvec3(&f32, 3);
 
-  ast::StructMemberList members;
-  ast::StructMemberDecorationList deco;
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &ivec3, std::move(deco)));
-
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(16, Source{}));
-  members.push_back(create<ast::StructMember>("b", &fvec3, std::move(deco)));
-
   auto* data_str = create<ast::Struct>();
-  data_str->set_members(std::move(members));
+  data_str->set_members({
+      create<ast::StructMember>(
+          "a", &ivec3,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(0, Source{})}),
+      create<ast::StructMember>(
+          "b", &fvec3,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(16, Source{})}),
+  });
 
-  ast::type::StructType data("Data", std::move(data_str));
+  ast::type::StructType data("Data", data_str);
 
   ast::type::ArrayType ary(&data, 4);
-  ast::ArrayDecorationList decos;
-  decos.push_back(create<ast::StrideDecoration>(32, Source{}));
-  ary.set_decorations(std::move(decos));
-
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("c", &ary, std::move(deco)));
+  ary.set_decorations({create<ast::StrideDecoration>(32, Source{})});
 
   auto* pre_str = create<ast::Struct>();
-  pre_str->set_members(std::move(members));
+  pre_str->set_members({create<ast::StructMember>(
+      "c", &ary,
+      ast::StructMemberDecorationList{
+          create<ast::StructMemberOffsetDecoration>(0, Source{})})});
 
-  ast::type::StructType pre_struct("Pre", std::move(pre_str));
+  ast::type::StructType pre_struct("Pre", pre_str);
 
   auto* coord_var = create<ast::DecoratedVariable>(create<ast::Variable>(
       "data", ast::StorageClass::kStorageBuffer, &pre_struct));
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -1143,38 +1138,37 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::type::VectorType ivec3(&i32, 3);
   ast::type::VectorType fvec3(&f32, 3);
 
-  ast::StructMemberList members;
-  ast::StructMemberDecorationList deco;
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &ivec3, std::move(deco)));
-
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(16, Source{}));
-  members.push_back(create<ast::StructMember>("b", &fvec3, std::move(deco)));
-
   auto* data_str = create<ast::Struct>();
-  data_str->set_members(std::move(members));
+  data_str->set_members({
+      create<ast::StructMember>(
+          "a", &ivec3,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(0, Source{})}),
+      create<ast::StructMember>(
+          "b", &fvec3,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(16, Source{})}),
+  });
 
-  ast::type::StructType data("Data", std::move(data_str));
+  ast::type::StructType data("Data", data_str);
 
   ast::type::ArrayType ary(&data, 4);
-  ast::ArrayDecorationList decos;
-  decos.push_back(create<ast::StrideDecoration>(32, Source{}));
-  ary.set_decorations(std::move(decos));
-
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("c", &ary, std::move(deco)));
+  ary.set_decorations({create<ast::StrideDecoration>(32, Source{})});
 
   auto* pre_str = create<ast::Struct>();
-  pre_str->set_members(std::move(members));
+  pre_str->set_members({create<ast::StructMember>(
+      "c", &ary,
+      ast::StructMemberDecorationList{
+          create<ast::StructMemberOffsetDecoration>(0, Source{})})});
 
-  ast::type::StructType pre_struct("Pre", std::move(pre_str));
+  ast::type::StructType pre_struct("Pre", pre_str);
 
   auto* coord_var = create<ast::DecoratedVariable>(create<ast::Variable>(
       "data", ast::StorageClass::kStorageBuffer, &pre_struct));
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -1191,13 +1185,13 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   auto* lit2 = create<ast::FloatLiteral>(&f32, 2.f);
   auto* lit3 = create<ast::FloatLiteral>(&f32, 3.f);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit1)));
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit2)));
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit3)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit1));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit2));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit3));
 
-  auto* rhs = create<ast::TypeConstructorExpression>(&fvec3, std::move(values));
+  auto* rhs = create<ast::TypeConstructorExpression>(&fvec3, values);
 
-  ast::AssignmentStatement assign(std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement assign(lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&assign));
   ASSERT_TRUE(gen.EmitStatement(out, &assign)) << gen.error();
@@ -1227,38 +1221,37 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   ast::type::VectorType ivec3(&i32, 3);
   ast::type::VectorType fvec3(&f32, 3);
 
-  ast::StructMemberList members;
-  ast::StructMemberDecorationList deco;
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &ivec3, std::move(deco)));
-
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(16, Source{}));
-  members.push_back(create<ast::StructMember>("b", &fvec3, std::move(deco)));
-
   auto* data_str = create<ast::Struct>();
-  data_str->set_members(std::move(members));
+  data_str->set_members({
+      create<ast::StructMember>(
+          "a", &ivec3,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(0, Source{})}),
+      create<ast::StructMember>(
+          "b", &fvec3,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(16, Source{})}),
+  });
 
-  ast::type::StructType data("Data", std::move(data_str));
+  ast::type::StructType data("Data", data_str);
 
   ast::type::ArrayType ary(&data, 4);
-  ast::ArrayDecorationList decos;
-  decos.push_back(create<ast::StrideDecoration>(32, Source{}));
-  ary.set_decorations(std::move(decos));
-
-  deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("c", &ary, std::move(deco)));
+  ary.set_decorations({create<ast::StrideDecoration>(32, Source{})});
 
   auto* pre_str = create<ast::Struct>();
-  pre_str->set_members(std::move(members));
+  pre_str->set_members({create<ast::StructMember>(
+      "c", &ary,
+      ast::StructMemberDecorationList{
+          create<ast::StructMemberOffsetDecoration>(0, Source{})})});
 
-  ast::type::StructType pre_struct("Pre", std::move(pre_str));
+  ast::type::StructType pre_struct("Pre", pre_str);
 
   auto* coord_var = create<ast::DecoratedVariable>(create<ast::Variable>(
       "data", ast::StorageClass::kStorageBuffer, &pre_struct));
 
   td.RegisterVariableForTesting(coord_var);
   gen.register_global(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -1276,7 +1269,7 @@ TEST_F(HlslGeneratorImplTest_MemberAccessor,
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&i32, 1.f));
 
-  ast::AssignmentStatement assign(std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement assign(lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&assign));
   ASSERT_TRUE(gen.EmitStatement(out, &assign)) << gen.error();
diff --git a/src/writer/hlsl/generator_impl_module_constant_test.cc b/src/writer/hlsl/generator_impl_module_constant_test.cc
index 98e900ffbc..3b78a97c92 100644
--- a/src/writer/hlsl/generator_impl_module_constant_test.cc
+++ b/src/writer/hlsl/generator_impl_module_constant_test.cc
@@ -47,8 +47,7 @@ TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_ModuleConstant) {
 
   auto* var = create<ast::Variable>("pos", ast::StorageClass::kNone, &ary);
   var->set_is_const(true);
-  var->set_constructor(
-      create<ast::TypeConstructorExpression>(&ary, std::move(exprs)));
+  var->set_constructor(create<ast::TypeConstructorExpression>(&ary, exprs));
 
   ASSERT_TRUE(gen.EmitProgramConstVariable(out, var)) << gen.error();
   EXPECT_EQ(
@@ -64,7 +63,7 @@ TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_SpecConstant) {
 
   auto* var = create<ast::DecoratedVariable>(
       create<ast::Variable>("pos", ast::StorageClass::kNone, &f32));
-  var->set_decorations(std::move(decos));
+  var->set_decorations(decos);
   var->set_is_const(true);
   var->set_constructor(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.0f)));
@@ -86,7 +85,7 @@ TEST_F(HlslGeneratorImplTest_ModuleConstant, Emit_SpecConstant_NoConstructor) {
 
   auto* var = create<ast::DecoratedVariable>(
       create<ast::Variable>("pos", ast::StorageClass::kNone, &f32));
-  var->set_decorations(std::move(decos));
+  var->set_decorations(decos);
   var->set_is_const(true);
 
   ASSERT_TRUE(gen.EmitProgramConstVariable(out, var)) << gen.error();
diff --git a/src/writer/hlsl/generator_impl_return_test.cc b/src/writer/hlsl/generator_impl_return_test.cc
index 75473b0b20..4744be82d7 100644
--- a/src/writer/hlsl/generator_impl_return_test.cc
+++ b/src/writer/hlsl/generator_impl_return_test.cc
@@ -37,7 +37,7 @@ TEST_F(HlslGeneratorImplTest_Return, Emit_Return) {
 
 TEST_F(HlslGeneratorImplTest_Return, Emit_ReturnWithValue) {
   auto* expr = create<ast::IdentifierExpression>("expr");
-  ast::ReturnStatement r(std::move(expr));
+  ast::ReturnStatement r(expr);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.EmitStatement(out, &r)) << gen.error();
diff --git a/src/writer/hlsl/generator_impl_switch_test.cc b/src/writer/hlsl/generator_impl_switch_test.cc
index 41049398fe..ab33821e76 100644
--- a/src/writer/hlsl/generator_impl_switch_test.cc
+++ b/src/writer/hlsl/generator_impl_switch_test.cc
@@ -33,7 +33,7 @@ using HlslGeneratorImplTest_Switch = TestHelper;
 TEST_F(HlslGeneratorImplTest_Switch, Emit_Switch) {
   auto* def_body = create<ast::BlockStatement>();
   def_body->append(create<ast::BreakStatement>());
-  auto* def = create<ast::CaseStatement>(std::move(def_body));
+  auto* def = create<ast::CaseStatement>(def_body);
 
   ast::type::I32Type i32;
   ast::CaseSelectorList case_val;
@@ -42,15 +42,14 @@ TEST_F(HlslGeneratorImplTest_Switch, Emit_Switch) {
   auto* case_body = create<ast::BlockStatement>();
   case_body->append(create<ast::BreakStatement>());
 
-  auto* case_stmt =
-      create<ast::CaseStatement>(std::move(case_val), std::move(case_body));
+  auto* case_stmt = create<ast::CaseStatement>(case_val, case_body);
 
   ast::CaseStatementList body;
-  body.push_back(std::move(case_stmt));
-  body.push_back(std::move(def));
+  body.push_back(case_stmt);
+  body.push_back(def);
 
   auto* cond = create<ast::IdentifierExpression>("cond");
-  ast::SwitchStatement s(std::move(cond), std::move(body));
+  ast::SwitchStatement s(cond, body);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.EmitStatement(out, &s)) << gen.error();
diff --git a/src/writer/hlsl/generator_impl_test.cc b/src/writer/hlsl/generator_impl_test.cc
index 7f11b76194..f2854aaea1 100644
--- a/src/writer/hlsl/generator_impl_test.cc
+++ b/src/writer/hlsl/generator_impl_test.cc
@@ -31,7 +31,7 @@ TEST_F(HlslGeneratorImplTest, Generate) {
   ast::type::VoidType void_type;
   auto* func = create<ast::Function>("my_func", ast::VariableList{}, &void_type,
                                      create<ast::BlockStatement>());
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
   EXPECT_EQ(result(), R"(void my_func() {
diff --git a/src/writer/hlsl/generator_impl_type_test.cc b/src/writer/hlsl/generator_impl_type_test.cc
index b507f6bd63..a4ee48b937 100644
--- a/src/writer/hlsl/generator_impl_type_test.cc
+++ b/src/writer/hlsl/generator_impl_type_test.cc
@@ -179,12 +179,12 @@ TEST_F(HlslGeneratorImplTest_Type, EmitType_StructDecl) {
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("S", std::move(str));
+  ast::type::StructType s("S", str);
 
   ASSERT_TRUE(gen.EmitStructType(out, &s, "S")) << gen.error();
   EXPECT_EQ(result(), R"(struct S {
@@ -204,12 +204,12 @@ TEST_F(HlslGeneratorImplTest_Type, EmitType_Struct) {
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("S", std::move(str));
+  ast::type::StructType s("S", str);
 
   ASSERT_TRUE(gen.EmitType(out, &s, "")) << gen.error();
   EXPECT_EQ(result(), "S");
@@ -223,18 +223,18 @@ TEST_F(HlslGeneratorImplTest_Type, DISABLED_EmitType_Struct_InjectPadding) {
   decos.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
 
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("a", &i32, decos));
 
   decos.push_back(create<ast::StructMemberOffsetDecoration>(32, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("b", &f32, decos));
 
   decos.push_back(create<ast::StructMemberOffsetDecoration>(128, Source{}));
-  members.push_back(create<ast::StructMember>("c", &f32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("c", &f32, decos));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("S", std::move(str));
+  ast::type::StructType s("S", str);
 
   ASSERT_TRUE(gen.EmitType(out, &s, "")) << gen.error();
   EXPECT_EQ(result(), R"(struct {
@@ -256,13 +256,12 @@ TEST_F(HlslGeneratorImplTest_Type, EmitType_Struct_NameCollision) {
       "double", &i32, ast::StructMemberDecorationList{}));
 
   ast::StructMemberDecorationList b_deco;
-  members.push_back(
-      create<ast::StructMember>("float", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("float", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("S", std::move(str));
+  ast::type::StructType s("S", str);
 
   ASSERT_TRUE(gen.EmitStructType(out, &s, "S")) << gen.error();
   EXPECT_EQ(result(), R"(struct S {
@@ -283,14 +282,14 @@ TEST_F(HlslGeneratorImplTest_Type, DISABLED_EmitType_Struct_WithDecoration) {
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   ast::StructDecorationList decos;
   decos.push_back(create<ast::StructBlockDecoration>(Source{}));
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
+  auto* str = create<ast::Struct>(decos, members);
 
-  ast::type::StructType s("S", std::move(str));
+  ast::type::StructType s("S", str);
 
   ASSERT_TRUE(gen.EmitStructType(out, &s, "B")) << gen.error();
   EXPECT_EQ(result(), R"(struct B {
diff --git a/src/writer/hlsl/generator_impl_unary_op_test.cc b/src/writer/hlsl/generator_impl_unary_op_test.cc
index 30b25d0c3d..7b9ed5fb7d 100644
--- a/src/writer/hlsl/generator_impl_unary_op_test.cc
+++ b/src/writer/hlsl/generator_impl_unary_op_test.cc
@@ -38,7 +38,7 @@ TEST_P(HlslUnaryOpTest, Emit) {
   auto params = GetParam();
 
   auto* expr = create<ast::IdentifierExpression>("expr");
-  ast::UnaryOpExpression op(params.op, std::move(expr));
+  ast::UnaryOpExpression op(params.op, expr);
 
   ASSERT_TRUE(gen.EmitExpression(pre, out, &op)) << gen.error();
   EXPECT_EQ(result(), std::string(params.name) + "(expr)");
diff --git a/src/writer/hlsl/generator_impl_variable_decl_statement_test.cc b/src/writer/hlsl/generator_impl_variable_decl_statement_test.cc
index f48ea87776..813cdaa58e 100644
--- a/src/writer/hlsl/generator_impl_variable_decl_statement_test.cc
+++ b/src/writer/hlsl/generator_impl_variable_decl_statement_test.cc
@@ -36,7 +36,7 @@ TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement) {
   ast::type::F32Type f32;
   auto* var = create<ast::Variable>("a", ast::StorageClass::kNone, &f32);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.EmitStatement(out, &stmt)) << gen.error();
@@ -48,7 +48,7 @@ TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Const) {
   auto* var = create<ast::Variable>("a", ast::StorageClass::kNone, &f32);
   var->set_is_const(true);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.EmitStatement(out, &stmt)) << gen.error();
@@ -61,7 +61,7 @@ TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Array) {
 
   auto* var = create<ast::Variable>("a", ast::StorageClass::kNone, &ary);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.EmitStatement(out, &stmt)) << gen.error();
@@ -73,7 +73,7 @@ TEST_F(HlslGeneratorImplTest_VariableDecl,
   ast::type::F32Type f32;
   auto* var = create<ast::Variable>("a", ast::StorageClass::kFunction, &f32);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.EmitStatement(out, &stmt)) << gen.error();
@@ -84,7 +84,7 @@ TEST_F(HlslGeneratorImplTest_VariableDecl, Emit_VariableDeclStatement_Private) {
   ast::type::F32Type f32;
   auto* var = create<ast::Variable>("a", ast::StorageClass::kPrivate, &f32);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.EmitStatement(out, &stmt)) << gen.error();
@@ -97,9 +97,9 @@ TEST_F(HlslGeneratorImplTest_VariableDecl,
 
   ast::type::F32Type f32;
   auto* var = create<ast::Variable>("a", ast::StorageClass::kNone, &f32);
-  var->set_constructor(std::move(ident));
+  var->set_constructor(ident);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
   ASSERT_TRUE(gen.EmitStatement(out, &stmt)) << gen.error();
   EXPECT_EQ(result(), R"(float a = initializer;
 )");
@@ -111,13 +111,12 @@ TEST_F(HlslGeneratorImplTest_VariableDecl,
   ast::type::VectorType vec(&f32, 3);
 
   ast::ExpressionList values;
-  auto* zero_vec =
-      create<ast::TypeConstructorExpression>(&vec, std::move(values));
+  auto* zero_vec = create<ast::TypeConstructorExpression>(&vec, values);
 
   auto* var = create<ast::Variable>("a", ast::StorageClass::kNone, &vec);
-  var->set_constructor(std::move(zero_vec));
+  var->set_constructor(zero_vec);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
   ASSERT_TRUE(gen.EmitStatement(out, &stmt)) << gen.error();
   EXPECT_EQ(result(), R"(vector<float, 3> a = vector<float, 3>(0.0f);
 )");
@@ -129,13 +128,12 @@ TEST_F(HlslGeneratorImplTest_VariableDecl,
   ast::type::MatrixType mat(&f32, 3, 2);
 
   ast::ExpressionList values;
-  auto* zero_mat =
-      create<ast::TypeConstructorExpression>(&mat, std::move(values));
+  auto* zero_mat = create<ast::TypeConstructorExpression>(&mat, values);
 
   auto* var = create<ast::Variable>("a", ast::StorageClass::kNone, &mat);
-  var->set_constructor(std::move(zero_mat));
+  var->set_constructor(zero_mat);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
   ASSERT_TRUE(gen.EmitStatement(out, &stmt)) << gen.error();
   EXPECT_EQ(
       result(),
diff --git a/src/writer/msl/generator_impl_alias_type_test.cc b/src/writer/msl/generator_impl_alias_type_test.cc
index e7b5eff1b8..beebfc08a0 100644
--- a/src/writer/msl/generator_impl_alias_type_test.cc
+++ b/src/writer/msl/generator_impl_alias_type_test.cc
@@ -59,12 +59,12 @@ TEST_F(MslGeneratorImplTest, EmitConstructedType_Struct) {
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &i32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &i32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("a", std::move(str));
+  ast::type::StructType s("a", str);
 
   ASSERT_TRUE(gen.EmitConstructedType(&s)) << gen.error();
   EXPECT_EQ(gen.result(), R"(struct a {
@@ -84,12 +84,12 @@ TEST_F(MslGeneratorImplTest, EmitConstructedType_AliasStructIdent) {
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &i32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &i32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("b", std::move(str));
+  ast::type::StructType s("b", str);
   ast::type::AliasType alias("a", &s);
 
   ASSERT_TRUE(gen.EmitConstructedType(&alias)) << gen.error();
diff --git a/src/writer/msl/generator_impl_array_accessor_test.cc b/src/writer/msl/generator_impl_array_accessor_test.cc
index b9e47e9f36..ee85cb9745 100644
--- a/src/writer/msl/generator_impl_array_accessor_test.cc
+++ b/src/writer/msl/generator_impl_array_accessor_test.cc
@@ -34,10 +34,10 @@ using MslGeneratorImplTest = TestHelper;
 TEST_F(MslGeneratorImplTest, EmitExpression_ArrayAccessor) {
   ast::type::I32Type i32;
   auto* lit = create<ast::SintLiteral>(&i32, 5);
-  auto* idx = create<ast::ScalarConstructorExpression>(std::move(lit));
+  auto* idx = create<ast::ScalarConstructorExpression>(lit);
   auto* ary = create<ast::IdentifierExpression>("ary");
 
-  ast::ArrayAccessorExpression expr(std::move(ary), std::move(idx));
+  ast::ArrayAccessorExpression expr(ary, idx);
 
   ASSERT_TRUE(gen.EmitExpression(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "ary[5]");
@@ -47,7 +47,7 @@ TEST_F(MslGeneratorImplTest, EmitArrayAccessor) {
   auto* ary = create<ast::IdentifierExpression>("ary");
   auto* idx = create<ast::IdentifierExpression>("idx");
 
-  ast::ArrayAccessorExpression expr(std::move(ary), std::move(idx));
+  ast::ArrayAccessorExpression expr(ary, idx);
 
   ASSERT_TRUE(gen.EmitArrayAccessor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "ary[idx]");
diff --git a/src/writer/msl/generator_impl_assign_test.cc b/src/writer/msl/generator_impl_assign_test.cc
index 00ed1fba32..eb673fecf4 100644
--- a/src/writer/msl/generator_impl_assign_test.cc
+++ b/src/writer/msl/generator_impl_assign_test.cc
@@ -32,7 +32,7 @@ using MslGeneratorImplTest = TestHelper;
 TEST_F(MslGeneratorImplTest, Emit_Assign) {
   auto* lhs = create<ast::IdentifierExpression>("lhs");
   auto* rhs = create<ast::IdentifierExpression>("rhs");
-  ast::AssignmentStatement assign(std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement assign(lhs, rhs);
 
   gen.increment_indent();
 
diff --git a/src/writer/msl/generator_impl_binary_test.cc b/src/writer/msl/generator_impl_binary_test.cc
index ac234e8a11..62e48ade14 100644
--- a/src/writer/msl/generator_impl_binary_test.cc
+++ b/src/writer/msl/generator_impl_binary_test.cc
@@ -41,7 +41,7 @@ TEST_P(MslBinaryTest, Emit) {
   auto* left = create<ast::IdentifierExpression>("left");
   auto* right = create<ast::IdentifierExpression>("right");
 
-  ast::BinaryExpression expr(params.op, std::move(left), std::move(right));
+  ast::BinaryExpression expr(params.op, left, right);
 
   ASSERT_TRUE(gen.EmitExpression(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), params.result);
diff --git a/src/writer/msl/generator_impl_bitcast_test.cc b/src/writer/msl/generator_impl_bitcast_test.cc
index 776311e40c..82fdcabd24 100644
--- a/src/writer/msl/generator_impl_bitcast_test.cc
+++ b/src/writer/msl/generator_impl_bitcast_test.cc
@@ -32,7 +32,7 @@ using MslGeneratorImplTest = TestHelper;
 TEST_F(MslGeneratorImplTest, EmitExpression_Bitcast) {
   ast::type::F32Type f32;
   auto* id = create<ast::IdentifierExpression>("id");
-  ast::BitcastExpression bitcast(&f32, std::move(id));
+  ast::BitcastExpression bitcast(&f32, id);
 
   ASSERT_TRUE(gen.EmitExpression(&bitcast)) << gen.error();
   EXPECT_EQ(gen.result(), "as_type<float>(id)");
diff --git a/src/writer/msl/generator_impl_call_test.cc b/src/writer/msl/generator_impl_call_test.cc
index dee21a981b..2a369389aa 100644
--- a/src/writer/msl/generator_impl_call_test.cc
+++ b/src/writer/msl/generator_impl_call_test.cc
@@ -35,11 +35,11 @@ TEST_F(MslGeneratorImplTest, EmitExpression_Call_WithoutParams) {
   ast::type::VoidType void_type;
 
   auto* id = create<ast::IdentifierExpression>("my_func");
-  ast::CallExpression call(std::move(id), {});
+  ast::CallExpression call(id, {});
 
   auto* func = create<ast::Function>("my_func", ast::VariableList{}, &void_type,
                                      create<ast::BlockStatement>());
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(gen.EmitExpression(&call)) << gen.error();
   EXPECT_EQ(gen.result(), "my_func()");
@@ -52,11 +52,11 @@ TEST_F(MslGeneratorImplTest, EmitExpression_Call_WithParams) {
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("param1"));
   params.push_back(create<ast::IdentifierExpression>("param2"));
-  ast::CallExpression call(std::move(id), std::move(params));
+  ast::CallExpression call(id, params);
 
   auto* func = create<ast::Function>("my_func", ast::VariableList{}, &void_type,
                                      create<ast::BlockStatement>());
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(gen.EmitExpression(&call)) << gen.error();
   EXPECT_EQ(gen.result(), "my_func(param1, param2)");
@@ -69,12 +69,11 @@ TEST_F(MslGeneratorImplTest, EmitStatement_Call) {
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("param1"));
   params.push_back(create<ast::IdentifierExpression>("param2"));
-  ast::CallStatement call(
-      create<ast::CallExpression>(std::move(id), std::move(params)));
+  ast::CallStatement call(create<ast::CallExpression>(id, params));
 
   auto* func = create<ast::Function>("my_func", ast::VariableList{}, &void_type,
                                      create<ast::BlockStatement>());
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   gen.increment_indent();
   ASSERT_TRUE(gen.EmitStatement(&call)) << gen.error();
diff --git a/src/writer/msl/generator_impl_case_test.cc b/src/writer/msl/generator_impl_case_test.cc
index 7419f16d94..72d07a91ac 100644
--- a/src/writer/msl/generator_impl_case_test.cc
+++ b/src/writer/msl/generator_impl_case_test.cc
@@ -40,7 +40,7 @@ TEST_F(MslGeneratorImplTest, Emit_Case) {
 
   ast::CaseSelectorList lit;
   lit.push_back(create<ast::SintLiteral>(&i32, 5));
-  ast::CaseStatement c(std::move(lit), std::move(body));
+  ast::CaseStatement c(lit, body);
 
   gen.increment_indent();
 
@@ -56,7 +56,7 @@ TEST_F(MslGeneratorImplTest, Emit_Case_BreaksByDefault) {
 
   ast::CaseSelectorList lit;
   lit.push_back(create<ast::SintLiteral>(&i32, 5));
-  ast::CaseStatement c(std::move(lit), create<ast::BlockStatement>());
+  ast::CaseStatement c(lit, create<ast::BlockStatement>());
 
   gen.increment_indent();
 
@@ -75,7 +75,7 @@ TEST_F(MslGeneratorImplTest, Emit_Case_WithFallthrough) {
 
   ast::CaseSelectorList lit;
   lit.push_back(create<ast::SintLiteral>(&i32, 5));
-  ast::CaseStatement c(std::move(lit), std::move(body));
+  ast::CaseStatement c(lit, body);
 
   gen.increment_indent();
 
@@ -95,7 +95,7 @@ TEST_F(MslGeneratorImplTest, Emit_Case_MultipleSelectors) {
   ast::CaseSelectorList lit;
   lit.push_back(create<ast::SintLiteral>(&i32, 5));
   lit.push_back(create<ast::SintLiteral>(&i32, 6));
-  ast::CaseStatement c(std::move(lit), std::move(body));
+  ast::CaseStatement c(lit, body);
 
   gen.increment_indent();
 
@@ -110,7 +110,7 @@ TEST_F(MslGeneratorImplTest, Emit_Case_MultipleSelectors) {
 TEST_F(MslGeneratorImplTest, Emit_Case_Default) {
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::BreakStatement>());
-  ast::CaseStatement c(std::move(body));
+  ast::CaseStatement c(body);
 
   gen.increment_indent();
 
diff --git a/src/writer/msl/generator_impl_cast_test.cc b/src/writer/msl/generator_impl_cast_test.cc
index eefa7a33f1..05b4fed444 100644
--- a/src/writer/msl/generator_impl_cast_test.cc
+++ b/src/writer/msl/generator_impl_cast_test.cc
@@ -36,7 +36,7 @@ TEST_F(MslGeneratorImplTest, EmitExpression_Cast_Scalar) {
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("id"));
 
-  ast::TypeConstructorExpression cast(&f32, std::move(params));
+  ast::TypeConstructorExpression cast(&f32, params);
 
   ASSERT_TRUE(gen.EmitExpression(&cast)) << gen.error();
   EXPECT_EQ(gen.result(), "float(id)");
@@ -49,7 +49,7 @@ TEST_F(MslGeneratorImplTest, EmitExpression_Cast_Vector) {
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("id"));
 
-  ast::TypeConstructorExpression cast(&vec3, std::move(params));
+  ast::TypeConstructorExpression cast(&vec3, params);
 
   ASSERT_TRUE(gen.EmitExpression(&cast)) << gen.error();
   EXPECT_EQ(gen.result(), "float3(id)");
diff --git a/src/writer/msl/generator_impl_constructor_test.cc b/src/writer/msl/generator_impl_constructor_test.cc
index 41a8b75b93..27c8ec12c2 100644
--- a/src/writer/msl/generator_impl_constructor_test.cc
+++ b/src/writer/msl/generator_impl_constructor_test.cc
@@ -40,7 +40,7 @@ using MslGeneratorImplTest = TestHelper;
 TEST_F(MslGeneratorImplTest, EmitConstructor_Bool) {
   ast::type::BoolType bool_type;
   auto* lit = create<ast::BoolLiteral>(&bool_type, false);
-  ast::ScalarConstructorExpression expr(std::move(lit));
+  ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "false");
@@ -49,7 +49,7 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Bool) {
 TEST_F(MslGeneratorImplTest, EmitConstructor_Int) {
   ast::type::I32Type i32;
   auto* lit = create<ast::SintLiteral>(&i32, -12345);
-  ast::ScalarConstructorExpression expr(std::move(lit));
+  ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "-12345");
@@ -58,7 +58,7 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Int) {
 TEST_F(MslGeneratorImplTest, EmitConstructor_UInt) {
   ast::type::U32Type u32;
   auto* lit = create<ast::UintLiteral>(&u32, 56779);
-  ast::ScalarConstructorExpression expr(std::move(lit));
+  ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "56779u");
@@ -69,7 +69,7 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Float) {
   // Use a number close to 1<<30 but whose decimal representation ends in 0.
   auto* lit =
       create<ast::FloatLiteral>(&f32, static_cast<float>((1 << 30) - 4));
-  ast::ScalarConstructorExpression expr(std::move(lit));
+  ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "1.07374182e+09f");
@@ -80,9 +80,9 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Float) {
 
   auto* lit = create<ast::FloatLiteral>(&f32, -1.2e-5);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
-  ast::TypeConstructorExpression expr(&f32, std::move(values));
+  ast::TypeConstructorExpression expr(&f32, values);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "float(-1.20000004e-05f)");
@@ -93,9 +93,9 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Bool) {
 
   auto* lit = create<ast::BoolLiteral>(&b, true);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
-  ast::TypeConstructorExpression expr(&b, std::move(values));
+  ast::TypeConstructorExpression expr(&b, values);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "bool(true)");
@@ -106,9 +106,9 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Int) {
 
   auto* lit = create<ast::SintLiteral>(&i32, -12345);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
-  ast::TypeConstructorExpression expr(&i32, std::move(values));
+  ast::TypeConstructorExpression expr(&i32, values);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "int(-12345)");
@@ -119,9 +119,9 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Uint) {
 
   auto* lit = create<ast::UintLiteral>(&u32, 12345);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
-  ast::TypeConstructorExpression expr(&u32, std::move(values));
+  ast::TypeConstructorExpression expr(&u32, values);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "uint(12345u)");
@@ -135,11 +135,11 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Vec) {
   auto* lit2 = create<ast::FloatLiteral>(&f32, 2.f);
   auto* lit3 = create<ast::FloatLiteral>(&f32, 3.f);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit1)));
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit2)));
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit3)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit1));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit2));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit3));
 
-  ast::TypeConstructorExpression expr(&vec, std::move(values));
+  ast::TypeConstructorExpression expr(&vec, values);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "float3(1.00000000f, 2.00000000f, 3.00000000f)");
@@ -150,7 +150,7 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Vec_Empty) {
   ast::type::VectorType vec(&f32, 3);
 
   ast::ExpressionList values;
-  ast::TypeConstructorExpression expr(&vec, std::move(values));
+  ast::TypeConstructorExpression expr(&vec, values);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "float3(0.0f)");
@@ -175,15 +175,14 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Mat) {
         create<ast::FloatLiteral>(&f32, static_cast<float>(3 + (i * 2)));
 
     ast::ExpressionList values;
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit1)));
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit2)));
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit3)));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit1));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit2));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit3));
 
-    mat_values.push_back(
-        create<ast::TypeConstructorExpression>(&vec, std::move(values)));
+    mat_values.push_back(create<ast::TypeConstructorExpression>(&vec, values));
   }
 
-  ast::TypeConstructorExpression expr(&mat, std::move(mat_values));
+  ast::TypeConstructorExpression expr(&mat, mat_values);
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
 
   // A matrix of type T with n columns and m rows can also be constructed from
@@ -210,15 +209,14 @@ TEST_F(MslGeneratorImplTest, EmitConstructor_Type_Array) {
         create<ast::FloatLiteral>(&f32, static_cast<float>(3 + (i * 3)));
 
     ast::ExpressionList values;
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit1)));
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit2)));
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit3)));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit1));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit2));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit3));
 
-    ary_values.push_back(
-        create<ast::TypeConstructorExpression>(&vec, std::move(values)));
+    ary_values.push_back(create<ast::TypeConstructorExpression>(&vec, values));
   }
 
-  ast::TypeConstructorExpression expr(&ary, std::move(ary_values));
+  ast::TypeConstructorExpression expr(&ary, ary_values);
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(),
             std::string("{") +
diff --git a/src/writer/msl/generator_impl_function_entry_point_data_test.cc b/src/writer/msl/generator_impl_function_entry_point_data_test.cc
index 36526979d4..492ffc8998 100644
--- a/src/writer/msl/generator_impl_function_entry_point_data_test.cc
+++ b/src/writer/msl/generator_impl_function_entry_point_data_test.cc
@@ -54,21 +54,17 @@ TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Vertex_Input) {
 
   auto* foo_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("foo", ast::StorageClass::kInput, &f32));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  foo_var->set_decorations(std::move(decos));
+  foo_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
 
   auto* bar_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("bar", ast::StorageClass::kInput, &i32));
-  decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations({create<ast::LocationDecoration>(1, Source{})});
 
   td.RegisterVariableForTesting(foo_var);
   td.RegisterVariableForTesting(bar_var);
 
-  mod.AddGlobalVariable(std::move(foo_var));
-  mod.AddGlobalVariable(std::move(bar_var));
+  mod.AddGlobalVariable(foo_var);
+  mod.AddGlobalVariable(bar_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -79,17 +75,15 @@ TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Vertex_Input) {
       create<ast::IdentifierExpression>("bar"),
       create<ast::IdentifierExpression>("bar")));
 
-  auto* func = create<ast::Function>("vtx_main", std::move(params), &f32,
-                                     std::move(body));
+  auto* func = create<ast::Function>("vtx_main", params, &f32, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  auto* func_ptr = func;
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
-  ASSERT_TRUE(gen.EmitEntryPointData(func_ptr)) << gen.error();
+  ASSERT_TRUE(gen.EmitEntryPointData(func)) << gen.error();
   EXPECT_EQ(gen.result(), R"(struct vtx_main_in {
   float foo [[attribute(0)]];
   int bar [[attribute(1)]];
@@ -112,21 +106,17 @@ TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Vertex_Output) {
 
   auto* foo_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("foo", ast::StorageClass::kOutput, &f32));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  foo_var->set_decorations(std::move(decos));
+  foo_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
 
   auto* bar_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("bar", ast::StorageClass::kOutput, &i32));
-  decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations({create<ast::LocationDecoration>(1, Source{})});
 
   td.RegisterVariableForTesting(foo_var);
   td.RegisterVariableForTesting(bar_var);
 
-  mod.AddGlobalVariable(std::move(foo_var));
-  mod.AddGlobalVariable(std::move(bar_var));
+  mod.AddGlobalVariable(foo_var);
+  mod.AddGlobalVariable(bar_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -137,17 +127,15 @@ TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Vertex_Output) {
       create<ast::IdentifierExpression>("bar"),
       create<ast::IdentifierExpression>("bar")));
 
-  auto* func = create<ast::Function>("vtx_main", std::move(params), &f32,
-                                     std::move(body));
+  auto* func = create<ast::Function>("vtx_main", params, &f32, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kVertex, Source{}));
-  auto* func_ptr = func;
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
-  ASSERT_TRUE(gen.EmitEntryPointData(func_ptr)) << gen.error();
+  ASSERT_TRUE(gen.EmitEntryPointData(func)) << gen.error();
   EXPECT_EQ(gen.result(), R"(struct vtx_main_out {
   float foo [[user(locn0)]];
   int bar [[user(locn1)]];
@@ -170,21 +158,17 @@ TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Fragment_Input) {
 
   auto* foo_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("foo", ast::StorageClass::kInput, &f32));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  foo_var->set_decorations(std::move(decos));
+  foo_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
 
   auto* bar_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("bar", ast::StorageClass::kInput, &i32));
-  decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations({create<ast::LocationDecoration>(1, Source{})});
 
   td.RegisterVariableForTesting(foo_var);
   td.RegisterVariableForTesting(bar_var);
 
-  mod.AddGlobalVariable(std::move(foo_var));
-  mod.AddGlobalVariable(std::move(bar_var));
+  mod.AddGlobalVariable(foo_var);
+  mod.AddGlobalVariable(bar_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -194,17 +178,15 @@ TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Fragment_Input) {
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>("bar"),
       create<ast::IdentifierExpression>("bar")));
-  auto* func =
-      create<ast::Function>("main", std::move(params), &f32, std::move(body));
+  auto* func = create<ast::Function>("main", params, &f32, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
-  auto* func_ptr = func;
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
-  ASSERT_TRUE(gen.EmitEntryPointData(func_ptr)) << gen.error();
+  ASSERT_TRUE(gen.EmitEntryPointData(func)) << gen.error();
   EXPECT_EQ(gen.result(), R"(struct main_in {
   float foo [[user(locn0)]];
   int bar [[user(locn1)]];
@@ -227,21 +209,17 @@ TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Fragment_Output) {
 
   auto* foo_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("foo", ast::StorageClass::kOutput, &f32));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  foo_var->set_decorations(std::move(decos));
+  foo_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
 
   auto* bar_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("bar", ast::StorageClass::kOutput, &i32));
-  decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations({create<ast::LocationDecoration>(1, Source{})});
 
   td.RegisterVariableForTesting(foo_var);
   td.RegisterVariableForTesting(bar_var);
 
-  mod.AddGlobalVariable(std::move(foo_var));
-  mod.AddGlobalVariable(std::move(bar_var));
+  mod.AddGlobalVariable(foo_var);
+  mod.AddGlobalVariable(bar_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -252,17 +230,15 @@ TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Fragment_Output) {
       create<ast::IdentifierExpression>("bar"),
       create<ast::IdentifierExpression>("bar")));
 
-  auto* func =
-      create<ast::Function>("main", std::move(params), &f32, std::move(body));
+  auto* func = create<ast::Function>("main", params, &f32, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
-  auto* func_ptr = func;
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
-  ASSERT_TRUE(gen.EmitEntryPointData(func_ptr)) << gen.error();
+  ASSERT_TRUE(gen.EmitEntryPointData(func)) << gen.error();
   EXPECT_EQ(gen.result(), R"(struct main_out {
   float foo [[color(0)]];
   int bar [[color(1)]];
@@ -285,18 +261,18 @@ TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Compute_Input) {
 
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  foo_var->set_decorations(std::move(decos));
+  foo_var->set_decorations(decos);
 
   auto* bar_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("bar", ast::StorageClass::kInput, &i32));
   decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(foo_var);
   td.RegisterVariableForTesting(bar_var);
 
-  mod.AddGlobalVariable(std::move(foo_var));
-  mod.AddGlobalVariable(std::move(bar_var));
+  mod.AddGlobalVariable(foo_var);
+  mod.AddGlobalVariable(bar_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -307,17 +283,15 @@ TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Compute_Input) {
       create<ast::IdentifierExpression>("bar"),
       create<ast::IdentifierExpression>("bar")));
 
-  auto* func =
-      create<ast::Function>("main", std::move(params), &f32, std::move(body));
+  auto* func = create<ast::Function>("main", params, &f32, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
-  auto* func_ptr = func;
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
-  ASSERT_FALSE(gen.EmitEntryPointData(func_ptr)) << gen.error();
+  ASSERT_FALSE(gen.EmitEntryPointData(func)) << gen.error();
   EXPECT_EQ(gen.error(), R"(invalid location variable for pipeline stage)");
 }
 
@@ -335,18 +309,18 @@ TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Compute_Output) {
 
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  foo_var->set_decorations(std::move(decos));
+  foo_var->set_decorations(decos);
 
   auto* bar_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("bar", ast::StorageClass::kOutput, &i32));
   decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(foo_var);
   td.RegisterVariableForTesting(bar_var);
 
-  mod.AddGlobalVariable(std::move(foo_var));
-  mod.AddGlobalVariable(std::move(bar_var));
+  mod.AddGlobalVariable(foo_var);
+  mod.AddGlobalVariable(bar_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -357,17 +331,15 @@ TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Compute_Output) {
       create<ast::IdentifierExpression>("bar"),
       create<ast::IdentifierExpression>("bar")));
 
-  auto* func =
-      create<ast::Function>("main", std::move(params), &f32, std::move(body));
+  auto* func = create<ast::Function>("main", params, &f32, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
-  auto* func_ptr = func;
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
-  ASSERT_FALSE(gen.EmitEntryPointData(func_ptr)) << gen.error();
+  ASSERT_FALSE(gen.EmitEntryPointData(func)) << gen.error();
   EXPECT_EQ(gen.error(), R"(invalid location variable for pipeline stage)");
 }
 
@@ -388,23 +360,19 @@ TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Builtins) {
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("coord", ast::StorageClass::kInput, &vec4));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(
-      create<ast::BuiltinDecoration>(ast::Builtin::kFragCoord, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(
+      {create<ast::BuiltinDecoration>(ast::Builtin::kFragCoord, Source{})});
 
   auto* depth_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("depth", ast::StorageClass::kOutput, &f32));
-  decos.push_back(
-      create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{}));
-  depth_var->set_decorations(std::move(decos));
+  depth_var->set_decorations(
+      {create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{})});
 
   td.RegisterVariableForTesting(coord_var);
   td.RegisterVariableForTesting(depth_var);
 
-  mod.AddGlobalVariable(std::move(coord_var));
-  mod.AddGlobalVariable(std::move(depth_var));
+  mod.AddGlobalVariable(coord_var);
+  mod.AddGlobalVariable(depth_var);
 
   ast::VariableList params;
 
@@ -415,17 +383,15 @@ TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Builtins) {
           create<ast::IdentifierExpression>("coord"),
           create<ast::IdentifierExpression>("x"))));
 
-  auto* func = create<ast::Function>("main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
-  auto* func_ptr = func;
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
-  ASSERT_TRUE(gen.EmitEntryPointData(func_ptr)) << gen.error();
+  ASSERT_TRUE(gen.EmitEntryPointData(func)) << gen.error();
   EXPECT_EQ(gen.result(), R"(struct main_out {
   float depth [[depth(any)]];
 };
diff --git a/src/writer/msl/generator_impl_function_test.cc b/src/writer/msl/generator_impl_function_test.cc
index 7a2ae425b0..5828ee2788 100644
--- a/src/writer/msl/generator_impl_function_test.cc
+++ b/src/writer/msl/generator_impl_function_test.cc
@@ -62,10 +62,10 @@ TEST_F(MslGeneratorImplTest, Emit_Function) {
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("my_func", ast::VariableList{}, &void_type,
-                                     std::move(body));
+  auto* func =
+      create<ast::Function>("my_func", ast::VariableList{}, &void_type, body);
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.Generate()) << gen.error();
@@ -83,10 +83,10 @@ TEST_F(MslGeneratorImplTest, Emit_Function_Name_Collision) {
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("main", ast::VariableList{}, &void_type,
-                                     std::move(body));
+  auto* func =
+      create<ast::Function>("main", ast::VariableList{}, &void_type, body);
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.Generate()) << gen.error();
@@ -111,10 +111,9 @@ TEST_F(MslGeneratorImplTest, Emit_Function_WithParams) {
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("my_func", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("my_func", params, &void_type, body);
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
   gen.increment_indent();
 
   ASSERT_TRUE(gen.Generate()) << gen.error();
@@ -133,21 +132,17 @@ TEST_F(MslGeneratorImplTest, Emit_FunctionDecoration_EntryPoint_WithInOutVars) {
 
   auto* foo_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("foo", ast::StorageClass::kInput, &f32));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  foo_var->set_decorations(std::move(decos));
+  foo_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
 
   auto* bar_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("bar", ast::StorageClass::kOutput, &f32));
-  decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations({create<ast::LocationDecoration>(1, Source{})});
 
   td.RegisterVariableForTesting(foo_var);
   td.RegisterVariableForTesting(bar_var);
 
-  mod.AddGlobalVariable(std::move(foo_var));
-  mod.AddGlobalVariable(std::move(bar_var));
+  mod.AddGlobalVariable(foo_var);
+  mod.AddGlobalVariable(bar_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -156,12 +151,11 @@ TEST_F(MslGeneratorImplTest, Emit_FunctionDecoration_EntryPoint_WithInOutVars) {
       create<ast::IdentifierExpression>("foo")));
   body->append(create<ast::ReturnStatement>());
 
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -193,23 +187,19 @@ TEST_F(MslGeneratorImplTest,
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("coord", ast::StorageClass::kInput, &vec4));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(
-      create<ast::BuiltinDecoration>(ast::Builtin::kFragCoord, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(
+      {create<ast::BuiltinDecoration>(ast::Builtin::kFragCoord, Source{})});
 
   auto* depth_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("depth", ast::StorageClass::kOutput, &f32));
-  decos.push_back(
-      create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{}));
-  depth_var->set_decorations(std::move(decos));
+  depth_var->set_decorations(
+      {create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{})});
 
   td.RegisterVariableForTesting(coord_var);
   td.RegisterVariableForTesting(depth_var);
 
-  mod.AddGlobalVariable(std::move(coord_var));
-  mod.AddGlobalVariable(std::move(depth_var));
+  mod.AddGlobalVariable(coord_var);
+  mod.AddGlobalVariable(depth_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -220,12 +210,11 @@ TEST_F(MslGeneratorImplTest,
           create<ast::IdentifierExpression>("x"))));
   body->append(create<ast::ReturnStatement>());
 
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -256,11 +245,11 @@ TEST_F(MslGeneratorImplTest, Emit_FunctionDecoration_EntryPoint_With_Uniform) {
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(1, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(coord_var);
 
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ast::VariableList params;
   auto* var = create<ast::Variable>("v", ast::StorageClass::kFunction, &f32);
@@ -269,15 +258,14 @@ TEST_F(MslGeneratorImplTest, Emit_FunctionDecoration_EntryPoint_With_Uniform) {
       create<ast::IdentifierExpression>("x")));
 
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::ReturnStatement>());
 
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -301,16 +289,16 @@ TEST_F(MslGeneratorImplTest,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("a", &i32, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
   ast::type::AccessControlType ac(ast::AccessControl::kReadWrite, &s);
 
   mod.AddConstructedType(&s);
@@ -321,11 +309,11 @@ TEST_F(MslGeneratorImplTest,
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(1, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(coord_var);
 
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ast::VariableList params;
   auto* var = create<ast::Variable>("v", ast::StorageClass::kFunction, &f32);
@@ -334,15 +322,14 @@ TEST_F(MslGeneratorImplTest,
       create<ast::IdentifierExpression>("b")));
 
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::ReturnStatement>());
 
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate()) << gen.error();
@@ -370,16 +357,16 @@ TEST_F(MslGeneratorImplTest,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("a", &i32, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
   ast::type::AccessControlType ac(ast::AccessControl::kReadOnly, &s);
 
   mod.AddConstructedType(&s);
@@ -390,11 +377,11 @@ TEST_F(MslGeneratorImplTest,
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(1, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(coord_var);
 
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ast::VariableList params;
 
@@ -404,15 +391,14 @@ TEST_F(MslGeneratorImplTest,
       create<ast::IdentifierExpression>("b")));
 
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::ReturnStatement>());
 
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -440,28 +426,23 @@ TEST_F(
 
   auto* foo_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("foo", ast::StorageClass::kInput, &f32));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  foo_var->set_decorations(std::move(decos));
+  foo_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
 
   auto* bar_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("bar", ast::StorageClass::kOutput, &f32));
-  decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations({create<ast::LocationDecoration>(1, Source{})});
 
   auto* val_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("val", ast::StorageClass::kOutput, &f32));
-  decos.push_back(create<ast::LocationDecoration>(0, Source{}));
-  val_var->set_decorations(std::move(decos));
+  val_var->set_decorations({create<ast::LocationDecoration>(0, Source{})});
 
   td.RegisterVariableForTesting(foo_var);
   td.RegisterVariableForTesting(bar_var);
   td.RegisterVariableForTesting(val_var);
 
-  mod.AddGlobalVariable(std::move(foo_var));
-  mod.AddGlobalVariable(std::move(bar_var));
-  mod.AddGlobalVariable(std::move(val_var));
+  mod.AddGlobalVariable(foo_var);
+  mod.AddGlobalVariable(bar_var);
+  mod.AddGlobalVariable(val_var);
 
   ast::VariableList params;
   params.push_back(
@@ -476,10 +457,9 @@ TEST_F(
       create<ast::IdentifierExpression>("param")));
   body->append(
       create<ast::ReturnStatement>(create<ast::IdentifierExpression>("foo")));
-  auto* sub_func = create<ast::Function>("sub_func", std::move(params), &f32,
-                                         std::move(body));
+  auto* sub_func = create<ast::Function>("sub_func", params, &f32, body);
 
-  mod.AddFunction(std::move(sub_func));
+  mod.AddFunction(sub_func);
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
@@ -489,14 +469,13 @@ TEST_F(
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>("bar"),
       create<ast::CallExpression>(create<ast::IdentifierExpression>("sub_func"),
-                                  std::move(expr))));
+                                  expr)));
   body->append(create<ast::ReturnStatement>());
-  auto* func_1 = create<ast::Function>("ep_1", std::move(params), &void_type,
-                                       std::move(body));
+  auto* func_1 = create<ast::Function>("ep_1", params, &void_type, body);
   func_1->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func_1));
+  mod.AddFunction(func_1);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -539,11 +518,11 @@ TEST_F(MslGeneratorImplTest,
   ast::VariableDecorationList decos;
   decos.push_back(
       create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{}));
-  depth_var->set_decorations(std::move(decos));
+  depth_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(depth_var);
 
-  mod.AddGlobalVariable(std::move(depth_var));
+  mod.AddGlobalVariable(depth_var);
 
   ast::VariableList params;
   params.push_back(
@@ -552,10 +531,9 @@ TEST_F(MslGeneratorImplTest,
   auto* body = create<ast::BlockStatement>();
   body->append(
       create<ast::ReturnStatement>(create<ast::IdentifierExpression>("param")));
-  auto* sub_func = create<ast::Function>("sub_func", std::move(params), &f32,
-                                         std::move(body));
+  auto* sub_func = create<ast::Function>("sub_func", params, &f32, body);
 
-  mod.AddFunction(std::move(sub_func));
+  mod.AddFunction(sub_func);
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
@@ -565,15 +543,14 @@ TEST_F(MslGeneratorImplTest,
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>("depth"),
       create<ast::CallExpression>(create<ast::IdentifierExpression>("sub_func"),
-                                  std::move(expr))));
+                                  expr)));
   body->append(create<ast::ReturnStatement>());
 
-  auto* func_1 = create<ast::Function>("ep_1", std::move(params), &void_type,
-                                       std::move(body));
+  auto* func_1 = create<ast::Function>("ep_1", params, &void_type, body);
   func_1->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func_1));
+  mod.AddFunction(func_1);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -606,23 +583,19 @@ TEST_F(
 
   auto* coord_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("coord", ast::StorageClass::kInput, &vec4));
-
-  ast::VariableDecorationList decos;
-  decos.push_back(
-      create<ast::BuiltinDecoration>(ast::Builtin::kFragCoord, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(
+      {create<ast::BuiltinDecoration>(ast::Builtin::kFragCoord, Source{})});
 
   auto* depth_var = create<ast::DecoratedVariable>(
       create<ast::Variable>("depth", ast::StorageClass::kOutput, &f32));
-  decos.push_back(
-      create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{}));
-  depth_var->set_decorations(std::move(decos));
+  depth_var->set_decorations(
+      {create<ast::BuiltinDecoration>(ast::Builtin::kFragDepth, Source{})});
 
   td.RegisterVariableForTesting(coord_var);
   td.RegisterVariableForTesting(depth_var);
 
-  mod.AddGlobalVariable(std::move(coord_var));
-  mod.AddGlobalVariable(std::move(depth_var));
+  mod.AddGlobalVariable(coord_var);
+  mod.AddGlobalVariable(depth_var);
 
   ast::VariableList params;
   params.push_back(
@@ -636,10 +609,9 @@ TEST_F(
           create<ast::IdentifierExpression>("x"))));
   body->append(
       create<ast::ReturnStatement>(create<ast::IdentifierExpression>("param")));
-  auto* sub_func = create<ast::Function>("sub_func", std::move(params), &f32,
-                                         std::move(body));
+  auto* sub_func = create<ast::Function>("sub_func", params, &f32, body);
 
-  mod.AddFunction(std::move(sub_func));
+  mod.AddFunction(sub_func);
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
@@ -649,14 +621,13 @@ TEST_F(
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>("depth"),
       create<ast::CallExpression>(create<ast::IdentifierExpression>("sub_func"),
-                                  std::move(expr))));
+                                  expr)));
   body->append(create<ast::ReturnStatement>());
-  auto* func_1 = create<ast::Function>("ep_1", std::move(params), &void_type,
-                                       std::move(body));
+  auto* func_1 = create<ast::Function>("ep_1", params, &void_type, body);
   func_1->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func_1));
+  mod.AddFunction(func_1);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate()) << gen.error();
@@ -692,11 +663,11 @@ TEST_F(MslGeneratorImplTest,
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(1, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(coord_var);
 
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ast::VariableList params;
   params.push_back(
@@ -707,10 +678,9 @@ TEST_F(MslGeneratorImplTest,
       create<ast::ReturnStatement>(create<ast::MemberAccessorExpression>(
           create<ast::IdentifierExpression>("coord"),
           create<ast::IdentifierExpression>("x"))));
-  auto* sub_func = create<ast::Function>("sub_func", std::move(params), &f32,
-                                         std::move(body));
+  auto* sub_func = create<ast::Function>("sub_func", params, &f32, body);
 
-  mod.AddFunction(std::move(sub_func));
+  mod.AddFunction(sub_func);
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
@@ -718,18 +688,17 @@ TEST_F(MslGeneratorImplTest,
 
   auto* var = create<ast::Variable>("v", ast::StorageClass::kFunction, &f32);
   var->set_constructor(create<ast::CallExpression>(
-      create<ast::IdentifierExpression>("sub_func"), std::move(expr)));
+      create<ast::IdentifierExpression>("sub_func"), expr));
 
   body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::ReturnStatement>());
 
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate()) << gen.error();
@@ -756,16 +725,16 @@ TEST_F(MslGeneratorImplTest,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("a", &i32, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
   ast::type::AccessControlType ac(ast::AccessControl::kReadWrite, &s);
 
   mod.AddConstructedType(&s);
@@ -776,10 +745,10 @@ TEST_F(MslGeneratorImplTest,
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(1, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ast::VariableList params;
   params.push_back(
@@ -790,10 +759,9 @@ TEST_F(MslGeneratorImplTest,
       create<ast::ReturnStatement>(create<ast::MemberAccessorExpression>(
           create<ast::IdentifierExpression>("coord"),
           create<ast::IdentifierExpression>("b"))));
-  auto* sub_func = create<ast::Function>("sub_func", std::move(params), &f32,
-                                         std::move(body));
+  auto* sub_func = create<ast::Function>("sub_func", params, &f32, body);
 
-  mod.AddFunction(std::move(sub_func));
+  mod.AddFunction(sub_func);
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
@@ -801,18 +769,17 @@ TEST_F(MslGeneratorImplTest,
 
   auto* var = create<ast::Variable>("v", ast::StorageClass::kFunction, &f32);
   var->set_constructor(create<ast::CallExpression>(
-      create<ast::IdentifierExpression>("sub_func"), std::move(expr)));
+      create<ast::IdentifierExpression>("sub_func"), expr));
 
   body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::ReturnStatement>());
 
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -845,16 +812,16 @@ TEST_F(MslGeneratorImplTest,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("a", &i32, a_deco));
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
   ast::type::AccessControlType ac(ast::AccessControl::kReadOnly, &s);
 
   mod.AddConstructedType(&s);
@@ -865,10 +832,10 @@ TEST_F(MslGeneratorImplTest,
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(1, Source{}));
-  coord_var->set_decorations(std::move(decos));
+  coord_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(coord_var);
-  mod.AddGlobalVariable(std::move(coord_var));
+  mod.AddGlobalVariable(coord_var);
 
   ast::VariableList params;
   params.push_back(
@@ -879,10 +846,9 @@ TEST_F(MslGeneratorImplTest,
       create<ast::ReturnStatement>(create<ast::MemberAccessorExpression>(
           create<ast::IdentifierExpression>("coord"),
           create<ast::IdentifierExpression>("b"))));
-  auto* sub_func = create<ast::Function>("sub_func", std::move(params), &f32,
-                                         std::move(body));
+  auto* sub_func = create<ast::Function>("sub_func", params, &f32, body);
 
-  mod.AddFunction(std::move(sub_func));
+  mod.AddFunction(sub_func);
 
   ast::ExpressionList expr;
   expr.push_back(create<ast::ScalarConstructorExpression>(
@@ -890,18 +856,17 @@ TEST_F(MslGeneratorImplTest,
 
   auto* var = create<ast::Variable>("v", ast::StorageClass::kFunction, &f32);
   var->set_constructor(create<ast::CallExpression>(
-      create<ast::IdentifierExpression>("sub_func"), std::move(expr)));
+      create<ast::IdentifierExpression>("sub_func"), expr));
 
   body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::ReturnStatement>());
 
-  auto* func = create<ast::Function>("frag_main", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("frag_main", params, &void_type, body);
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(td.Determine()) << td.error();
 
@@ -935,10 +900,10 @@ TEST_F(MslGeneratorImplTest,
       create<ast::Variable>("bar", ast::StorageClass::kOutput, &f32));
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::LocationDecoration>(1, Source{}));
-  bar_var->set_decorations(std::move(decos));
+  bar_var->set_decorations(decos);
 
   td.RegisterVariableForTesting(bar_var);
-  mod.AddGlobalVariable(std::move(bar_var));
+  mod.AddGlobalVariable(bar_var);
 
   ast::VariableList params;
   auto* body = create<ast::BlockStatement>();
@@ -956,16 +921,15 @@ TEST_F(MslGeneratorImplTest,
                                         create<ast::SintLiteral>(&i32, 1)),
                                     create<ast::ScalarConstructorExpression>(
                                         create<ast::SintLiteral>(&i32, 1))),
-      std::move(list)));
+      list));
 
   body->append(create<ast::ReturnStatement>());
 
-  auto* func_1 = create<ast::Function>("ep_1", std::move(params), &void_type,
-                                       std::move(body));
+  auto* func_1 = create<ast::Function>("ep_1", params, &void_type, body);
   func_1->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
-  mod.AddFunction(std::move(func_1));
+  mod.AddFunction(func_1);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(gen.Generate()) << gen.error();
@@ -996,7 +960,7 @@ TEST_F(MslGeneratorImplTest,
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(gen.Generate()) << gen.error();
   EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
@@ -1018,10 +982,9 @@ TEST_F(MslGeneratorImplTest, Emit_Function_WithArrayParams) {
 
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
-  auto* func = create<ast::Function>("my_func", std::move(params), &void_type,
-                                     std::move(body));
+  auto* func = create<ast::Function>("my_func", params, &void_type, body);
 
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   gen.increment_indent();
 
@@ -1059,14 +1022,14 @@ TEST_F(MslGeneratorImplTest,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("d", &f32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("d", &f32, a_deco));
 
   ast::StructDecorationList s_decos;
   s_decos.push_back(create<ast::StructBlockDecoration>(Source{}));
 
-  auto* str = create<ast::Struct>(std::move(s_decos), std::move(members));
+  auto* str = create<ast::Struct>(s_decos, members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
   ast::type::AccessControlType ac(ast::AccessControl::kReadWrite, &s);
 
   auto* data_var = create<ast::DecoratedVariable>(
@@ -1075,12 +1038,12 @@ TEST_F(MslGeneratorImplTest,
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(0, Source{}));
-  data_var->set_decorations(std::move(decos));
+  data_var->set_decorations(decos);
 
   mod.AddConstructedType(&s);
 
   td.RegisterVariableForTesting(data_var);
-  mod.AddGlobalVariable(std::move(data_var));
+  mod.AddGlobalVariable(data_var);
 
   {
     ast::VariableList params;
@@ -1090,15 +1053,14 @@ TEST_F(MslGeneratorImplTest,
         create<ast::IdentifierExpression>("d")));
 
     auto* body = create<ast::BlockStatement>();
-    body->append(create<ast::VariableDeclStatement>(std::move(var)));
+    body->append(create<ast::VariableDeclStatement>(var));
     body->append(create<ast::ReturnStatement>());
 
-    auto* func = create<ast::Function>("a", std::move(params), &void_type,
-                                       std::move(body));
+    auto* func = create<ast::Function>("a", params, &void_type, body);
     func->add_decoration(
         create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
 
-    mod.AddFunction(std::move(func));
+    mod.AddFunction(func);
   }
 
   {
@@ -1109,15 +1071,14 @@ TEST_F(MslGeneratorImplTest,
         create<ast::IdentifierExpression>("d")));
 
     auto* body = create<ast::BlockStatement>();
-    body->append(create<ast::VariableDeclStatement>(std::move(var)));
+    body->append(create<ast::VariableDeclStatement>(var));
     body->append(create<ast::ReturnStatement>());
 
-    auto* func = create<ast::Function>("b", std::move(params), &void_type,
-                                       std::move(body));
+    auto* func = create<ast::Function>("b", params, &void_type, body);
     func->add_decoration(
         create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
 
-    mod.AddFunction(std::move(func));
+    mod.AddFunction(func);
   }
 
   ASSERT_TRUE(td.Determine()) << td.error();
diff --git a/src/writer/msl/generator_impl_if_test.cc b/src/writer/msl/generator_impl_if_test.cc
index eec75df3e4..71428a83c2 100644
--- a/src/writer/msl/generator_impl_if_test.cc
+++ b/src/writer/msl/generator_impl_if_test.cc
@@ -33,7 +33,7 @@ TEST_F(MslGeneratorImplTest, Emit_If) {
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
 
-  ast::IfStatement i(std::move(cond), std::move(body));
+  ast::IfStatement i(cond, body);
 
   gen.increment_indent();
 
@@ -50,15 +50,14 @@ TEST_F(MslGeneratorImplTest, Emit_IfWithElseIf) {
   else_body->append(create<ast::ReturnStatement>());
 
   ast::ElseStatementList elses;
-  elses.push_back(
-      create<ast::ElseStatement>(std::move(else_cond), std::move(else_body)));
+  elses.push_back(create<ast::ElseStatement>(else_cond, else_body));
 
   auto* cond = create<ast::IdentifierExpression>("cond");
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
 
-  ast::IfStatement i(std::move(cond), std::move(body));
-  i.set_else_statements(std::move(elses));
+  ast::IfStatement i(cond, body);
+  i.set_else_statements(elses);
 
   gen.increment_indent();
 
@@ -76,14 +75,14 @@ TEST_F(MslGeneratorImplTest, Emit_IfWithElse) {
   else_body->append(create<ast::ReturnStatement>());
 
   ast::ElseStatementList elses;
-  elses.push_back(create<ast::ElseStatement>(std::move(else_body)));
+  elses.push_back(create<ast::ElseStatement>(else_body));
 
   auto* cond = create<ast::IdentifierExpression>("cond");
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
 
-  ast::IfStatement i(std::move(cond), std::move(body));
-  i.set_else_statements(std::move(elses));
+  ast::IfStatement i(cond, body);
+  i.set_else_statements(elses);
 
   gen.increment_indent();
 
@@ -106,16 +105,15 @@ TEST_F(MslGeneratorImplTest, Emit_IfWithMultiple) {
   else_body_2->append(create<ast::ReturnStatement>());
 
   ast::ElseStatementList elses;
-  elses.push_back(
-      create<ast::ElseStatement>(std::move(else_cond), std::move(else_body)));
-  elses.push_back(create<ast::ElseStatement>(std::move(else_body_2)));
+  elses.push_back(create<ast::ElseStatement>(else_cond, else_body));
+  elses.push_back(create<ast::ElseStatement>(else_body_2));
 
   auto* cond = create<ast::IdentifierExpression>("cond");
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
 
-  ast::IfStatement i(std::move(cond), std::move(body));
-  i.set_else_statements(std::move(elses));
+  ast::IfStatement i(cond, body);
+  i.set_else_statements(elses);
 
   gen.increment_indent();
 
diff --git a/src/writer/msl/generator_impl_import_test.cc b/src/writer/msl/generator_impl_import_test.cc
index 3920f50241..9d3b71a41e 100644
--- a/src/writer/msl/generator_impl_import_test.cc
+++ b/src/writer/msl/generator_impl_import_test.cc
@@ -59,14 +59,13 @@ TEST_P(MslImportData_SingleParamTest, FloatScalar) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   auto* ident = create<ast::IdentifierExpression>(param.name);
-  auto* ident_ptr = ident;
 
-  ast::CallExpression call(std::move(ident), std::move(params));
+  ast::CallExpression call(ident, params);
 
   // The call type determination will set the intrinsic data for the ident
   ASSERT_TRUE(td.DetermineResultType(&call)) << td.error();
 
-  ASSERT_EQ(gen.generate_builtin_name(ident_ptr),
+  ASSERT_EQ(gen.generate_builtin_name(ident),
             std::string("metal::") + param.msl_name);
 }
 INSTANTIATE_TEST_SUITE_P(MslGeneratorImplTest,
@@ -102,8 +101,7 @@ TEST_F(MslGeneratorImplTest, MslImportData_SingleParamTest_IntScalar) {
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 1)));
 
-  ast::CallExpression expr(create<ast::IdentifierExpression>("abs"),
-                           std::move(params));
+  ast::CallExpression expr(create<ast::IdentifierExpression>("abs"), params);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -124,7 +122,7 @@ TEST_P(MslImportData_DualParamTest, FloatScalar) {
       create<ast::FloatLiteral>(&f32, 2.f)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(param.name),
-                           std::move(params));
+                           params);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
   ASSERT_TRUE(gen.EmitCall(&expr)) << gen.error();
@@ -149,28 +147,30 @@ TEST_P(MslImportData_DualParam_VectorTest, FloatVector) {
   ast::type::VectorType vec(&f32, 3);
 
   ast::ExpressionList type_params;
-  type_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  type_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.f)));
-  type_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.f)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(type_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(
+      &vec, ast::ExpressionList{
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, 1.f)),
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, 2.f)),
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, 3.f)),
+            }));
 
-  type_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 4.f)));
-  type_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 5.f)));
-  type_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 6.f)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(type_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(
+      &vec, ast::ExpressionList{
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, 4.f)),
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, 5.f)),
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, 6.f)),
+            }));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(param.name),
-                           std::move(params));
+                           params);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
   ASSERT_TRUE(gen.EmitCall(&expr)) << gen.error();
@@ -195,7 +195,7 @@ TEST_P(MslImportData_DualParam_Int_Test, IntScalar) {
       create<ast::SintLiteral>(&i32, 2)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(param.name),
-                           std::move(params));
+                           params);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
   ASSERT_TRUE(gen.EmitCall(&expr)) << gen.error();
@@ -221,7 +221,7 @@ TEST_P(MslImportData_TripleParamTest, FloatScalar) {
       create<ast::FloatLiteral>(&f32, 3.f)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(param.name),
-                           std::move(params));
+                           params);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
   ASSERT_TRUE(gen.EmitCall(&expr)) << gen.error();
@@ -252,7 +252,7 @@ TEST_P(MslImportData_TripleParam_Int_Test, IntScalar) {
       create<ast::SintLiteral>(&i32, 3)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>(param.name),
-                           std::move(params));
+                           params);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
   ASSERT_TRUE(gen.EmitCall(&expr)) << gen.error();
@@ -274,9 +274,9 @@ TEST_F(MslGeneratorImplTest, MslImportData_Determinant) {
   params.push_back(create<ast::IdentifierExpression>("var"));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>("determinant"),
-                           std::move(params));
+                           params);
 
-  mod.AddGlobalVariable(std::move(var));
+  mod.AddGlobalVariable(var);
 
   // Register the global
   ASSERT_TRUE(td.Determine()) << td.error();
diff --git a/src/writer/msl/generator_impl_intrinsic_test.cc b/src/writer/msl/generator_impl_intrinsic_test.cc
index 5821b5b130..2bd7dbe730 100644
--- a/src/writer/msl/generator_impl_intrinsic_test.cc
+++ b/src/writer/msl/generator_impl_intrinsic_test.cc
@@ -79,13 +79,13 @@ TEST_F(MslGeneratorImplTest, DISABLED_Intrinsic_OuterProduct) {
   params.push_back(create<ast::IdentifierExpression>("b"));
 
   ast::CallExpression call(create<ast::IdentifierExpression>("outer_product"),
-                           std::move(params));
+                           params);
 
   td.RegisterVariableForTesting(a);
   td.RegisterVariableForTesting(b);
 
-  mod.AddGlobalVariable(std::move(a));
-  mod.AddGlobalVariable(std::move(b));
+  mod.AddGlobalVariable(a);
+  mod.AddGlobalVariable(b);
 
   ASSERT_TRUE(td.Determine()) << td.error();
   ASSERT_TRUE(td.DetermineResultType(&call)) << td.error();
@@ -107,8 +107,7 @@ TEST_F(MslGeneratorImplTest, Intrinsic_Call) {
   params.push_back(create<ast::IdentifierExpression>("param1"));
   params.push_back(create<ast::IdentifierExpression>("param2"));
 
-  ast::CallExpression call(create<ast::IdentifierExpression>("dot"),
-                           std::move(params));
+  ast::CallExpression call(create<ast::IdentifierExpression>("dot"), params);
 
   ast::Variable v1("param1", ast::StorageClass::kFunction, &vec);
   ast::Variable v2("param2", ast::StorageClass::kFunction, &vec);
diff --git a/src/writer/msl/generator_impl_loop_test.cc b/src/writer/msl/generator_impl_loop_test.cc
index faabd7bb80..800b51b9a6 100644
--- a/src/writer/msl/generator_impl_loop_test.cc
+++ b/src/writer/msl/generator_impl_loop_test.cc
@@ -39,7 +39,7 @@ TEST_F(MslGeneratorImplTest, Emit_Loop) {
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::DiscardStatement>());
 
-  ast::LoopStatement l(std::move(body), {});
+  ast::LoopStatement l(body, {});
 
   gen.increment_indent();
 
@@ -57,7 +57,7 @@ TEST_F(MslGeneratorImplTest, Emit_LoopWithContinuing) {
   auto* continuing = create<ast::BlockStatement>();
   continuing->append(create<ast::ReturnStatement>());
 
-  ast::LoopStatement l(std::move(body), std::move(continuing));
+  ast::LoopStatement l(body, continuing);
 
   gen.increment_indent();
 
@@ -85,20 +85,18 @@ TEST_F(MslGeneratorImplTest, Emit_LoopNestedWithContinuing) {
   auto* continuing = create<ast::BlockStatement>();
   continuing->append(create<ast::ReturnStatement>());
 
-  auto* inner =
-      create<ast::LoopStatement>(std::move(body), std::move(continuing));
+  auto* inner = create<ast::LoopStatement>(body, continuing);
 
   body = create<ast::BlockStatement>();
-  body->append(std::move(inner));
+  body->append(inner);
 
   auto* lhs = create<ast::IdentifierExpression>("lhs");
   auto* rhs = create<ast::IdentifierExpression>("rhs");
 
   continuing = create<ast::BlockStatement>();
-  continuing->append(
-      create<ast::AssignmentStatement>(std::move(lhs), std::move(rhs)));
+  continuing->append(create<ast::AssignmentStatement>(lhs, rhs));
 
-  ast::LoopStatement outer(std::move(body), std::move(continuing));
+  ast::LoopStatement outer(body, continuing);
 
   gen.increment_indent();
 
@@ -156,7 +154,7 @@ TEST_F(MslGeneratorImplTest, Emit_LoopWithVarUsedInContinuing) {
       create<ast::FloatLiteral>(&f32, 2.4)));
 
   auto* body = create<ast::BlockStatement>();
-  body->append(create<ast::VariableDeclStatement>(std::move(var)));
+  body->append(create<ast::VariableDeclStatement>(var));
   body->append(create<ast::VariableDeclStatement>(
       create<ast::Variable>("other", ast::StorageClass::kFunction, &f32)));
 
@@ -164,12 +162,11 @@ TEST_F(MslGeneratorImplTest, Emit_LoopWithVarUsedInContinuing) {
   auto* rhs = create<ast::IdentifierExpression>("rhs");
 
   auto* continuing = create<ast::BlockStatement>();
-  continuing->append(
-      create<ast::AssignmentStatement>(std::move(lhs), std::move(rhs)));
+  continuing->append(create<ast::AssignmentStatement>(lhs, rhs));
 
   gen.increment_indent();
 
-  ast::LoopStatement outer(std::move(body), std::move(continuing));
+  ast::LoopStatement outer(body, continuing);
 
   ASSERT_TRUE(gen.EmitStatement(&outer)) << gen.error();
   EXPECT_EQ(gen.result(), R"(  {
diff --git a/src/writer/msl/generator_impl_member_accessor_test.cc b/src/writer/msl/generator_impl_member_accessor_test.cc
index d0d1dc9a37..7672a01cf9 100644
--- a/src/writer/msl/generator_impl_member_accessor_test.cc
+++ b/src/writer/msl/generator_impl_member_accessor_test.cc
@@ -32,7 +32,7 @@ TEST_F(MslGeneratorImplTest, EmitExpression_MemberAccessor) {
   auto* str = create<ast::IdentifierExpression>("str");
   auto* mem = create<ast::IdentifierExpression>("mem");
 
-  ast::MemberAccessorExpression expr(std::move(str), std::move(mem));
+  ast::MemberAccessorExpression expr(str, mem);
 
   ASSERT_TRUE(gen.EmitExpression(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "str.mem");
diff --git a/src/writer/msl/generator_impl_module_constant_test.cc b/src/writer/msl/generator_impl_module_constant_test.cc
index b0b392ef45..1612537c64 100644
--- a/src/writer/msl/generator_impl_module_constant_test.cc
+++ b/src/writer/msl/generator_impl_module_constant_test.cc
@@ -49,8 +49,7 @@ TEST_F(MslGeneratorImplTest, Emit_ModuleConstant) {
 
   auto* var = create<ast::Variable>("pos", ast::StorageClass::kNone, &ary);
   var->set_is_const(true);
-  var->set_constructor(
-      create<ast::TypeConstructorExpression>(&ary, std::move(exprs)));
+  var->set_constructor(create<ast::TypeConstructorExpression>(&ary, exprs));
 
   ASSERT_TRUE(gen.EmitProgramConstVariable(var)) << gen.error();
   EXPECT_EQ(
@@ -66,7 +65,7 @@ TEST_F(MslGeneratorImplTest, Emit_SpecConstant) {
 
   auto* var = create<ast::DecoratedVariable>(
       create<ast::Variable>("pos", ast::StorageClass::kNone, &f32));
-  var->set_decorations(std::move(decos));
+  var->set_decorations(decos);
   var->set_is_const(true);
   var->set_constructor(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.0f)));
diff --git a/src/writer/msl/generator_impl_return_test.cc b/src/writer/msl/generator_impl_return_test.cc
index 651440dfaa..408a51ccd9 100644
--- a/src/writer/msl/generator_impl_return_test.cc
+++ b/src/writer/msl/generator_impl_return_test.cc
@@ -40,7 +40,7 @@ TEST_F(MslGeneratorImplTest, Emit_Return) {
 
 TEST_F(MslGeneratorImplTest, Emit_ReturnWithValue) {
   auto* expr = create<ast::IdentifierExpression>("expr");
-  ast::ReturnStatement r(std::move(expr));
+  ast::ReturnStatement r(expr);
 
   gen.increment_indent();
 
diff --git a/src/writer/msl/generator_impl_switch_test.cc b/src/writer/msl/generator_impl_switch_test.cc
index 7511f62463..25546b77db 100644
--- a/src/writer/msl/generator_impl_switch_test.cc
+++ b/src/writer/msl/generator_impl_switch_test.cc
@@ -35,7 +35,7 @@ using MslGeneratorImplTest = TestHelper;
 TEST_F(MslGeneratorImplTest, Emit_Switch) {
   auto* def_body = create<ast::BlockStatement>();
   def_body->append(create<ast::BreakStatement>());
-  auto* def = create<ast::CaseStatement>(std::move(def_body));
+  auto* def = create<ast::CaseStatement>(def_body);
 
   ast::type::I32Type i32;
   ast::CaseSelectorList case_val;
@@ -44,15 +44,14 @@ TEST_F(MslGeneratorImplTest, Emit_Switch) {
   auto* case_body = create<ast::BlockStatement>();
   case_body->append(create<ast::BreakStatement>());
 
-  auto* case_stmt =
-      create<ast::CaseStatement>(std::move(case_val), std::move(case_body));
+  auto* case_stmt = create<ast::CaseStatement>(case_val, case_body);
 
   ast::CaseStatementList body;
-  body.push_back(std::move(case_stmt));
-  body.push_back(std::move(def));
+  body.push_back(case_stmt);
+  body.push_back(def);
 
   auto* cond = create<ast::IdentifierExpression>("cond");
-  ast::SwitchStatement s(std::move(cond), std::move(body));
+  ast::SwitchStatement s(cond, body);
 
   gen.increment_indent();
 
diff --git a/src/writer/msl/generator_impl_test.cc b/src/writer/msl/generator_impl_test.cc
index d974ec9dfa..e97b033341 100644
--- a/src/writer/msl/generator_impl_test.cc
+++ b/src/writer/msl/generator_impl_test.cc
@@ -54,7 +54,7 @@ TEST_F(MslGeneratorImplTest, Generate) {
                                      create<ast::BlockStatement>());
   func->add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
-  mod.AddFunction(std::move(func));
+  mod.AddFunction(func);
 
   ASSERT_TRUE(gen.Generate()) << gen.error();
   EXPECT_EQ(gen.result(), R"(#include <metal_stdlib>
@@ -160,18 +160,18 @@ TEST_F(MslGeneratorImplTest, calculate_alignment_size_struct) {
   decos.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
 
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("a", &i32, decos));
 
   decos.push_back(create<ast::StructMemberOffsetDecoration>(32, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("b", &f32, decos));
 
   decos.push_back(create<ast::StructMemberOffsetDecoration>(128, Source{}));
-  members.push_back(create<ast::StructMember>("c", &f32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("c", &f32, decos));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("S", std::move(str));
+  ast::type::StructType s("S", str);
 
   EXPECT_EQ(132u, gen.calculate_alignment_size(&s));
 }
@@ -185,32 +185,32 @@ TEST_F(MslGeneratorImplTest, calculate_alignment_size_struct_of_struct) {
   decos.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
 
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("a", &i32, decos));
 
   decos.push_back(create<ast::StructMemberOffsetDecoration>(16, Source{}));
-  members.push_back(create<ast::StructMember>("b", &fvec, std::move(decos)));
+  members.push_back(create<ast::StructMember>("b", &fvec, decos));
 
   decos.push_back(create<ast::StructMemberOffsetDecoration>(32, Source{}));
-  members.push_back(create<ast::StructMember>("c", &f32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("c", &f32, decos));
 
   auto* inner_str = create<ast::Struct>();
-  inner_str->set_members(std::move(members));
+  inner_str->set_members(members);
 
-  ast::type::StructType inner_s("Inner", std::move(inner_str));
+  ast::type::StructType inner_s("Inner", inner_str);
 
   decos.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("d", &f32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("d", &f32, decos));
 
   decos.push_back(create<ast::StructMemberOffsetDecoration>(32, Source{}));
-  members.push_back(create<ast::StructMember>("e", &inner_s, std::move(decos)));
+  members.push_back(create<ast::StructMember>("e", &inner_s, decos));
 
   decos.push_back(create<ast::StructMemberOffsetDecoration>(64, Source{}));
-  members.push_back(create<ast::StructMember>("f", &f32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("f", &f32, decos));
 
   auto* outer_str = create<ast::Struct>();
-  outer_str->set_members(std::move(members));
+  outer_str->set_members(members);
 
-  ast::type::StructType outer_s("Outer", std::move(outer_str));
+  ast::type::StructType outer_s("Outer", outer_str);
 
   EXPECT_EQ(80u, gen.calculate_alignment_size(&outer_s));
 }
diff --git a/src/writer/msl/generator_impl_type_test.cc b/src/writer/msl/generator_impl_type_test.cc
index 1716edad0e..49f0399c53 100644
--- a/src/writer/msl/generator_impl_type_test.cc
+++ b/src/writer/msl/generator_impl_type_test.cc
@@ -181,12 +181,12 @@ TEST_F(MslGeneratorImplTest, EmitType_Struct) {
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("S", std::move(str));
+  ast::type::StructType s("S", str);
 
   ASSERT_TRUE(gen.EmitType(&s, "")) << gen.error();
   EXPECT_EQ(gen.result(), "S");
@@ -202,12 +202,12 @@ TEST_F(MslGeneratorImplTest, EmitType_StructDecl) {
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("S", std::move(str));
+  ast::type::StructType s("S", str);
 
   ASSERT_TRUE(gen.EmitStructType(&s)) << gen.error();
   EXPECT_EQ(gen.result(), R"(struct S {
@@ -221,22 +221,23 @@ TEST_F(MslGeneratorImplTest, EmitType_Struct_InjectPadding) {
   ast::type::I32Type i32;
   ast::type::F32Type f32;
 
-  ast::StructMemberDecorationList decos;
-  decos.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-
-  ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(decos)));
-
-  decos.push_back(create<ast::StructMemberOffsetDecoration>(32, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(decos)));
-
-  decos.push_back(create<ast::StructMemberOffsetDecoration>(128, Source{}));
-  members.push_back(create<ast::StructMember>("c", &f32, std::move(decos)));
-
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members({
+      create<ast::StructMember>(
+          "a", &i32,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(4, Source{})}),
+      create<ast::StructMember>(
+          "b", &f32,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(32, Source{})}),
+      create<ast::StructMember>(
+          "c", &f32,
+          ast::StructMemberDecorationList{
+              create<ast::StructMemberOffsetDecoration>(128, Source{})}),
+  });
 
-  ast::type::StructType s("S", std::move(str));
+  ast::type::StructType s("S", str);
 
   ASSERT_TRUE(gen.EmitStructType(&s)) << gen.error();
   EXPECT_EQ(gen.result(), R"(struct S {
@@ -259,13 +260,12 @@ TEST_F(MslGeneratorImplTest, EmitType_Struct_NameCollision) {
       "main", &i32, ast::StructMemberDecorationList{}));
 
   ast::StructMemberDecorationList b_deco;
-  members.push_back(
-      create<ast::StructMember>("float", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("float", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("S", std::move(str));
+  ast::type::StructType s("S", str);
 
   ASSERT_TRUE(gen.EmitStructType(&s)) << gen.error();
   EXPECT_EQ(gen.result(), R"(struct S {
@@ -286,13 +286,13 @@ TEST_F(MslGeneratorImplTest, DISABLED_EmitType_Struct_WithDecoration) {
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   ast::StructDecorationList decos;
   decos.push_back(create<ast::StructBlockDecoration>(Source{}));
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
+  auto* str = create<ast::Struct>(decos, members);
 
-  ast::type::StructType s("S", std::move(str));
+  ast::type::StructType s("S", str);
 
   ASSERT_TRUE(gen.EmitType(&s, "")) << gen.error();
   EXPECT_EQ(gen.result(), R"(struct {
diff --git a/src/writer/msl/generator_impl_unary_op_test.cc b/src/writer/msl/generator_impl_unary_op_test.cc
index ec7836236d..a676558c56 100644
--- a/src/writer/msl/generator_impl_unary_op_test.cc
+++ b/src/writer/msl/generator_impl_unary_op_test.cc
@@ -40,7 +40,7 @@ TEST_P(MslUnaryOpTest, Emit) {
   auto params = GetParam();
 
   auto* expr = create<ast::IdentifierExpression>("expr");
-  ast::UnaryOpExpression op(params.op, std::move(expr));
+  ast::UnaryOpExpression op(params.op, expr);
 
   ASSERT_TRUE(gen.EmitExpression(&op)) << gen.error();
   EXPECT_EQ(gen.result(), std::string(params.name) + "(expr)");
diff --git a/src/writer/msl/generator_impl_variable_decl_statement_test.cc b/src/writer/msl/generator_impl_variable_decl_statement_test.cc
index 2681ae2dd7..f0ec7a0e51 100644
--- a/src/writer/msl/generator_impl_variable_decl_statement_test.cc
+++ b/src/writer/msl/generator_impl_variable_decl_statement_test.cc
@@ -44,7 +44,7 @@ TEST_F(MslGeneratorImplTest, Emit_VariableDeclStatement) {
   ast::type::F32Type f32;
   auto* var = create<ast::Variable>("a", ast::StorageClass::kNone, &f32);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
 
   gen.increment_indent();
 
@@ -57,7 +57,7 @@ TEST_F(MslGeneratorImplTest, Emit_VariableDeclStatement_Const) {
   auto* var = create<ast::Variable>("a", ast::StorageClass::kNone, &f32);
   var->set_is_const(true);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
 
   gen.increment_indent();
 
@@ -71,7 +71,7 @@ TEST_F(MslGeneratorImplTest, Emit_VariableDeclStatement_Array) {
 
   auto* var = create<ast::Variable>("a", ast::StorageClass::kNone, &ary);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
 
   gen.increment_indent();
 
@@ -88,16 +88,16 @@ TEST_F(MslGeneratorImplTest, Emit_VariableDeclStatement_Struct) {
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("S", std::move(str));
+  ast::type::StructType s("S", str);
 
   auto* var = create<ast::Variable>("a", ast::StorageClass::kNone, &s);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
 
   gen.increment_indent();
 
@@ -112,7 +112,7 @@ TEST_F(MslGeneratorImplTest, Emit_VariableDeclStatement_Vector) {
 
   auto* var = create<ast::Variable>("a", ast::StorageClass::kFunction, &vec);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
 
   gen.increment_indent();
 
@@ -125,7 +125,7 @@ TEST_F(MslGeneratorImplTest, Emit_VariableDeclStatement_Matrix) {
   ast::type::MatrixType mat(&f32, 2, 3);
   auto* var = create<ast::Variable>("a", ast::StorageClass::kFunction, &mat);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
 
   gen.increment_indent();
 
@@ -137,7 +137,7 @@ TEST_F(MslGeneratorImplTest, Emit_VariableDeclStatement_Private) {
   ast::type::F32Type f32;
   auto* var = create<ast::Variable>("a", ast::StorageClass::kPrivate, &f32);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
 
   gen.increment_indent();
 
@@ -150,9 +150,9 @@ TEST_F(MslGeneratorImplTest, Emit_VariableDeclStatement_Initializer_Private) {
 
   ast::type::F32Type f32;
   auto* var = create<ast::Variable>("a", ast::StorageClass::kNone, &f32);
-  var->set_constructor(std::move(ident));
+  var->set_constructor(ident);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
 
   ASSERT_TRUE(gen.EmitStatement(&stmt)) << gen.error();
   EXPECT_EQ(gen.result(), R"(float a = initializer;
@@ -164,13 +164,12 @@ TEST_F(MslGeneratorImplTest, Emit_VariableDeclStatement_Initializer_ZeroVec) {
   ast::type::VectorType vec(&f32, 3);
 
   ast::ExpressionList values;
-  auto* zero_vec =
-      create<ast::TypeConstructorExpression>(&vec, std::move(values));
+  auto* zero_vec = create<ast::TypeConstructorExpression>(&vec, values);
 
   auto* var = create<ast::Variable>("a", ast::StorageClass::kNone, &vec);
-  var->set_constructor(std::move(zero_vec));
+  var->set_constructor(zero_vec);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
 
   ASSERT_TRUE(gen.EmitStatement(&stmt)) << gen.error();
   EXPECT_EQ(gen.result(), R"(float3 a = float3(0.0f);
diff --git a/src/writer/spirv/builder_accessor_expression_test.cc b/src/writer/spirv/builder_accessor_expression_test.cc
index 705c66c5ba..15c5987ebb 100644
--- a/src/writer/spirv/builder_accessor_expression_test.cc
+++ b/src/writer/spirv/builder_accessor_expression_test.cc
@@ -60,7 +60,7 @@ TEST_F(BuilderTest, ArrayAccessor) {
   auto* idx_expr = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 1));
 
-  ast::ArrayAccessorExpression expr(std::move(ary), std::move(idx_expr));
+  ast::ArrayAccessorExpression expr(ary, idx_expr);
 
   td.RegisterVariableForTesting(&var);
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
@@ -101,7 +101,7 @@ TEST_F(BuilderTest, Accessor_Array_LoadIndex) {
   auto* ary = create<ast::IdentifierExpression>("ary");
   auto* idx_expr = create<ast::IdentifierExpression>("idx");
 
-  ast::ArrayAccessorExpression expr(std::move(ary), std::move(idx_expr));
+  ast::ArrayAccessorExpression expr(ary, idx_expr);
 
   td.RegisterVariableForTesting(&var);
   td.RegisterVariableForTesting(&idx);
@@ -145,7 +145,7 @@ TEST_F(BuilderTest, ArrayAccessor_Dynamic) {
   auto* ary = create<ast::IdentifierExpression>("ary");
 
   ast::ArrayAccessorExpression expr(
-      std::move(ary),
+      ary,
       create<ast::BinaryExpression>(ast::BinaryOp::kAdd,
                                     create<ast::ScalarConstructorExpression>(
                                         create<ast::SintLiteral>(&i32, 1)),
@@ -284,11 +284,11 @@ TEST_F(BuilderTest, MemberAccessor) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &f32, std::move(decos)));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("a", &f32, decos));
+  members.push_back(create<ast::StructMember>("b", &f32, decos));
 
-  auto* s = create<ast::Struct>(std::move(members));
-  ast::type::StructType s_type("my_struct", std::move(s));
+  auto* s = create<ast::Struct>(members);
+  ast::type::StructType s_type("my_struct", s);
 
   ast::Variable var("ident", ast::StorageClass::kFunction, &s_type);
 
@@ -333,20 +333,17 @@ TEST_F(BuilderTest, MemberAccessor_Nested) {
   // ident.inner.a
   ast::StructMemberDecorationList decos;
   ast::StructMemberList inner_members;
-  inner_members.push_back(
-      create<ast::StructMember>("a", &f32, std::move(decos)));
-  inner_members.push_back(
-      create<ast::StructMember>("b", &f32, std::move(decos)));
+  inner_members.push_back(create<ast::StructMember>("a", &f32, decos));
+  inner_members.push_back(create<ast::StructMember>("b", &f32, decos));
 
-  ast::type::StructType inner_struct(
-      "Inner", create<ast::Struct>(std::move(inner_members)));
+  ast::type::StructType inner_struct("Inner",
+                                     create<ast::Struct>(inner_members));
 
   ast::StructMemberList outer_members;
   outer_members.push_back(
-      create<ast::StructMember>("inner", &inner_struct, std::move(decos)));
+      create<ast::StructMember>("inner", &inner_struct, decos));
 
-  ast::type::StructType s_type("my_struct",
-                               create<ast::Struct>(std::move(outer_members)));
+  ast::type::StructType s_type("my_struct", create<ast::Struct>(outer_members));
 
   ast::Variable var("ident", ast::StorageClass::kFunction, &s_type);
 
@@ -396,22 +393,18 @@ TEST_F(BuilderTest, MemberAccessor_Nested_WithAlias) {
   // ident.inner.a
   ast::StructMemberDecorationList decos;
   ast::StructMemberList inner_members;
-  inner_members.push_back(
-      create<ast::StructMember>("a", &f32, std::move(decos)));
-  inner_members.push_back(
-      create<ast::StructMember>("b", &f32, std::move(decos)));
+  inner_members.push_back(create<ast::StructMember>("a", &f32, decos));
+  inner_members.push_back(create<ast::StructMember>("b", &f32, decos));
 
-  ast::type::StructType inner_struct(
-      "Inner", create<ast::Struct>(std::move(inner_members)));
+  ast::type::StructType inner_struct("Inner",
+                                     create<ast::Struct>(inner_members));
 
   ast::type::AliasType alias("Inner", &inner_struct);
 
   ast::StructMemberList outer_members;
-  outer_members.push_back(
-      create<ast::StructMember>("inner", &alias, std::move(decos)));
+  outer_members.push_back(create<ast::StructMember>("inner", &alias, decos));
 
-  ast::type::StructType s_type("Outer",
-                               create<ast::Struct>(std::move(outer_members)));
+  ast::type::StructType s_type("Outer", create<ast::Struct>(outer_members));
 
   ast::Variable var("ident", ast::StorageClass::kFunction, &s_type);
 
@@ -461,20 +454,17 @@ TEST_F(BuilderTest, MemberAccessor_Nested_Assignment_LHS) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList inner_members;
-  inner_members.push_back(
-      create<ast::StructMember>("a", &f32, std::move(decos)));
-  inner_members.push_back(
-      create<ast::StructMember>("b", &f32, std::move(decos)));
+  inner_members.push_back(create<ast::StructMember>("a", &f32, decos));
+  inner_members.push_back(create<ast::StructMember>("b", &f32, decos));
 
-  ast::type::StructType inner_struct(
-      "Inner", create<ast::Struct>(std::move(inner_members)));
+  ast::type::StructType inner_struct("Inner",
+                                     create<ast::Struct>(inner_members));
 
   ast::StructMemberList outer_members;
   outer_members.push_back(
-      create<ast::StructMember>("inner", &inner_struct, std::move(decos)));
+      create<ast::StructMember>("inner", &inner_struct, decos));
 
-  ast::type::StructType s_type("my_struct",
-                               create<ast::Struct>(std::move(outer_members)));
+  ast::type::StructType s_type("my_struct", create<ast::Struct>(outer_members));
 
   ast::Variable var("ident", ast::StorageClass::kFunction, &s_type);
 
@@ -487,7 +477,7 @@ TEST_F(BuilderTest, MemberAccessor_Nested_Assignment_LHS) {
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.f));
 
-  ast::AssignmentStatement expr(std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement expr(lhs, rhs);
 
   td.RegisterVariableForTesting(&var);
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
@@ -531,20 +521,17 @@ TEST_F(BuilderTest, MemberAccessor_Nested_Assignment_RHS) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList inner_members;
-  inner_members.push_back(
-      create<ast::StructMember>("a", &f32, std::move(decos)));
-  inner_members.push_back(
-      create<ast::StructMember>("b", &f32, std::move(decos)));
+  inner_members.push_back(create<ast::StructMember>("a", &f32, decos));
+  inner_members.push_back(create<ast::StructMember>("b", &f32, decos));
 
-  ast::type::StructType inner_struct(
-      "Inner", create<ast::Struct>(std::move(inner_members)));
+  ast::type::StructType inner_struct("Inner",
+                                     create<ast::Struct>(inner_members));
 
   ast::StructMemberList outer_members;
   outer_members.push_back(
-      create<ast::StructMember>("inner", &inner_struct, std::move(decos)));
+      create<ast::StructMember>("inner", &inner_struct, decos));
 
-  ast::type::StructType s_type("my_struct",
-                               create<ast::Struct>(std::move(outer_members)));
+  ast::type::StructType s_type("my_struct", create<ast::Struct>(outer_members));
 
   ast::Variable var("ident", ast::StorageClass::kFunction, &s_type);
   ast::Variable store("store", ast::StorageClass::kFunction, &f32);
@@ -557,7 +544,7 @@ TEST_F(BuilderTest, MemberAccessor_Nested_Assignment_RHS) {
           create<ast::IdentifierExpression>("inner")),
       create<ast::IdentifierExpression>("a"));
 
-  ast::AssignmentStatement expr(std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement expr(lhs, rhs);
 
   td.RegisterVariableForTesting(&var);
   td.RegisterVariableForTesting(&store);
@@ -793,22 +780,20 @@ TEST_F(BuilderTest, Accessor_Mixed_ArrayAndMember) {
   // index[0].foo[2].bar.baz.yx
 
   ast::StructMemberDecorationList decos;
-  ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("baz", &vec3, std::move(decos)));
-  auto* s = create<ast::Struct>(std::move(members));
-  ast::type::StructType c_type("C", std::move(s));
 
-  members.push_back(
-      create<ast::StructMember>("bar", &c_type, std::move(decos)));
-  s = create<ast::Struct>(std::move(members));
-  ast::type::StructType b_type("B", std::move(s));
+  auto* s = create<ast::Struct>(
+      ast::StructMemberList{create<ast::StructMember>("baz", &vec3, decos)});
+  ast::type::StructType c_type("C", s);
+
+  s = create<ast::Struct>(
+      ast::StructMemberList{create<ast::StructMember>("bar", &c_type, decos)});
+  ast::type::StructType b_type("B", s);
 
   ast::type::ArrayType b_ary_type(&b_type, 3);
 
-  members.push_back(
-      create<ast::StructMember>("foo", &b_ary_type, std::move(decos)));
-  s = create<ast::Struct>(std::move(members));
-  ast::type::StructType a_type("A", std::move(s));
+  s = create<ast::Struct>(ast::StructMemberList{
+      create<ast::StructMember>("foo", &b_ary_type, decos)});
+  ast::type::StructType a_type("A", s);
 
   ast::type::ArrayType a_ary_type(&a_type, 2);
 
@@ -880,33 +865,33 @@ TEST_F(BuilderTest, Accessor_Array_Of_Vec) {
   ast::type::ArrayType arr(&vec, 3);
 
   ast::ExpressionList ary_params;
+  ary_params.push_back(create<ast::TypeConstructorExpression>(
+      &vec, ast::ExpressionList{
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, 0.0)),
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, 0.5)),
+            }));
 
-  ast::ExpressionList vec_params;
-  vec_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 0.0)));
-  vec_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 0.5)));
-  ary_params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec_params)));
+  ary_params.push_back(create<ast::TypeConstructorExpression>(
+      &vec, ast::ExpressionList{
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, -0.5)),
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, -0.5)),
+            }));
 
-  vec_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, -0.5)));
-  vec_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, -0.5)));
-  ary_params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec_params)));
-
-  vec_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 0.5)));
-  vec_params.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, -0.5)));
-  ary_params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec_params)));
+  ary_params.push_back(create<ast::TypeConstructorExpression>(
+      &vec, ast::ExpressionList{
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, 0.5)),
+                create<ast::ScalarConstructorExpression>(
+                    create<ast::FloatLiteral>(&f32, -0.5)),
+            }));
 
   ast::Variable var("pos", ast::StorageClass::kPrivate, &arr);
   var.set_is_const(true);
-  var.set_constructor(
-      create<ast::TypeConstructorExpression>(&arr, std::move(ary_params)));
+  var.set_constructor(create<ast::TypeConstructorExpression>(&arr, ary_params));
 
   ast::ArrayAccessorExpression expr(create<ast::IdentifierExpression>("pos"),
                                     create<ast::ScalarConstructorExpression>(
diff --git a/src/writer/spirv/builder_assign_test.cc b/src/writer/spirv/builder_assign_test.cc
index 7d6022456a..b2a574e96a 100644
--- a/src/writer/spirv/builder_assign_test.cc
+++ b/src/writer/spirv/builder_assign_test.cc
@@ -51,7 +51,7 @@ TEST_F(BuilderTest, Assign_Var) {
   auto* val = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 1.0f));
 
-  ast::AssignmentStatement assign(std::move(ident), std::move(val));
+  ast::AssignmentStatement assign(ident, val);
 
   td.RegisterVariableForTesting(&v);
 
@@ -83,9 +83,9 @@ TEST_F(BuilderTest, Assign_Var_ZeroConstructor) {
 
   auto* ident = create<ast::IdentifierExpression>("var");
   ast::ExpressionList vals;
-  auto* val = create<ast::TypeConstructorExpression>(&vec, std::move(vals));
+  auto* val = create<ast::TypeConstructorExpression>(&vec, vals);
 
-  ast::AssignmentStatement assign(std::move(ident), std::move(val));
+  ast::AssignmentStatement assign(ident, val);
 
   td.RegisterVariableForTesting(&v);
 
@@ -114,23 +114,25 @@ TEST_F(BuilderTest, Assign_Var_Complex_ConstructorWithExtract) {
   ast::type::VectorType vec3(&f32, 3);
   ast::type::VectorType vec2(&f32, 2);
 
-  ast::ExpressionList vals;
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.0f)));
-  auto* first = create<ast::TypeConstructorExpression>(&vec2, std::move(vals));
+  auto* first = create<ast::TypeConstructorExpression>(
+      &vec2, ast::ExpressionList{
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.0f)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 2.0f)),
+             });
 
-  vals.push_back(std::move(first));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
-
-  auto* init = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* init = create<ast::TypeConstructorExpression>(
+      &vec3, ast::ExpressionList{
+                 first,
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 3.0f)),
+             });
 
   ast::Variable v("var", ast::StorageClass::kOutput, &vec3);
 
   ast::AssignmentStatement assign(create<ast::IdentifierExpression>("var"),
-                                  std::move(init));
+                                  init);
 
   td.RegisterVariableForTesting(&v);
   ASSERT_TRUE(td.DetermineResultType(&assign)) << td.error();
@@ -173,12 +175,12 @@ TEST_F(BuilderTest, Assign_Var_Complex_Constructor) {
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
-  auto* init = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* init = create<ast::TypeConstructorExpression>(&vec3, vals);
 
   ast::Variable v("var", ast::StorageClass::kOutput, &vec3);
 
   ast::AssignmentStatement assign(create<ast::IdentifierExpression>("var"),
-                                  std::move(init));
+                                  init);
 
   td.RegisterVariableForTesting(&v);
   ASSERT_TRUE(td.DetermineResultType(&assign)) << td.error();
@@ -216,11 +218,11 @@ TEST_F(BuilderTest, Assign_StructMember) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &f32, std::move(decos)));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("a", &f32, decos));
+  members.push_back(create<ast::StructMember>("b", &f32, decos));
 
-  auto* s = create<ast::Struct>(std::move(members));
-  ast::type::StructType s_type("my_struct", std::move(s));
+  auto* s = create<ast::Struct>(members);
+  ast::type::StructType s_type("my_struct", s);
 
   ast::Variable v("ident", ast::StorageClass::kFunction, &s_type);
 
@@ -231,7 +233,7 @@ TEST_F(BuilderTest, Assign_StructMember) {
   auto* val = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 4.0f));
 
-  ast::AssignmentStatement assign(std::move(ident), std::move(val));
+  ast::AssignmentStatement assign(ident, val);
 
   td.RegisterVariableForTesting(&v);
 
@@ -276,9 +278,9 @@ TEST_F(BuilderTest, Assign_Vector) {
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
-  auto* val = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* val = create<ast::TypeConstructorExpression>(&vec3, vals);
 
-  ast::AssignmentStatement assign(std::move(ident), std::move(val));
+  ast::AssignmentStatement assign(ident, val);
 
   td.RegisterVariableForTesting(&v);
 
@@ -319,7 +321,7 @@ TEST_F(BuilderTest, Assign_Vector_MemberByName) {
   auto* val = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 1.0f));
 
-  ast::AssignmentStatement assign(std::move(ident), std::move(val));
+  ast::AssignmentStatement assign(ident, val);
 
   td.RegisterVariableForTesting(&v);
 
@@ -365,7 +367,7 @@ TEST_F(BuilderTest, Assign_Vector_MemberByIndex) {
   auto* val = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 1.0f));
 
-  ast::AssignmentStatement assign(std::move(ident), std::move(val));
+  ast::AssignmentStatement assign(ident, val);
 
   td.RegisterVariableForTesting(&v);
 
diff --git a/src/writer/spirv/builder_binary_expression_test.cc b/src/writer/spirv/builder_binary_expression_test.cc
index 7a1f4737ab..1b9c555d22 100644
--- a/src/writer/spirv/builder_binary_expression_test.cc
+++ b/src/writer/spirv/builder_binary_expression_test.cc
@@ -62,7 +62,7 @@ TEST_P(BinaryArithSignedIntegerTest, Scalar) {
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 4));
 
-  ast::BinaryExpression expr(param.op, std::move(lhs), std::move(rhs));
+  ast::BinaryExpression expr(param.op, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -82,24 +82,27 @@ TEST_P(BinaryArithSignedIntegerTest, Vector) {
   ast::type::I32Type i32;
   ast::type::VectorType vec3(&i32, 3);
 
-  ast::ExpressionList vals;
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
-  auto* lhs = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* lhs = create<ast::TypeConstructorExpression>(
+      &vec3, ast::ExpressionList{
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::SintLiteral>(&i32, 1)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::SintLiteral>(&i32, 1)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::SintLiteral>(&i32, 1)),
+             });
 
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
-  auto* rhs = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* rhs = create<ast::TypeConstructorExpression>(
+      &vec3, ast::ExpressionList{
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::SintLiteral>(&i32, 1)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::SintLiteral>(&i32, 1)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::SintLiteral>(&i32, 1)),
+             });
 
-  ast::BinaryExpression expr(param.op, std::move(lhs), std::move(rhs));
+  ast::BinaryExpression expr(param.op, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -124,7 +127,7 @@ TEST_P(BinaryArithSignedIntegerTest, Scalar_Loads) {
   auto* lhs = create<ast::IdentifierExpression>("param");
   auto* rhs = create<ast::IdentifierExpression>("param");
 
-  ast::BinaryExpression expr(param.op, std::move(lhs), std::move(rhs));
+  ast::BinaryExpression expr(param.op, lhs, rhs);
 
   td.RegisterVariableForTesting(&var);
   EXPECT_TRUE(td.DetermineResultType(&expr)) << td.error();
@@ -174,7 +177,7 @@ TEST_P(BinaryArithUnsignedIntegerTest, Scalar) {
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::UintLiteral>(&u32, 4));
 
-  ast::BinaryExpression expr(param.op, std::move(lhs), std::move(rhs));
+  ast::BinaryExpression expr(param.op, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -194,24 +197,27 @@ TEST_P(BinaryArithUnsignedIntegerTest, Vector) {
   ast::type::U32Type u32;
   ast::type::VectorType vec3(&u32, 3);
 
-  ast::ExpressionList vals;
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
-  auto* lhs = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* lhs = create<ast::TypeConstructorExpression>(
+      &vec3, ast::ExpressionList{
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::UintLiteral>(&u32, 1)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::UintLiteral>(&u32, 1)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::UintLiteral>(&u32, 1)),
+             });
 
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
-  auto* rhs = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* rhs = create<ast::TypeConstructorExpression>(
+      &vec3, ast::ExpressionList{
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::UintLiteral>(&u32, 1)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::UintLiteral>(&u32, 1)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::UintLiteral>(&u32, 1)),
+             });
 
-  ast::BinaryExpression expr(param.op, std::move(lhs), std::move(rhs));
+  ast::BinaryExpression expr(param.op, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -252,7 +258,7 @@ TEST_P(BinaryArithFloatTest, Scalar) {
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 4.5f));
 
-  ast::BinaryExpression expr(param.op, std::move(lhs), std::move(rhs));
+  ast::BinaryExpression expr(param.op, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
   b.push_function(Function{});
@@ -272,24 +278,27 @@ TEST_P(BinaryArithFloatTest, Vector) {
   ast::type::F32Type f32;
   ast::type::VectorType vec3(&f32, 3);
 
-  ast::ExpressionList vals;
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  auto* lhs = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* lhs = create<ast::TypeConstructorExpression>(
+      &vec3, ast::ExpressionList{
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.f)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.f)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.f)),
+             });
 
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  auto* rhs = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* rhs = create<ast::TypeConstructorExpression>(
+      &vec3, ast::ExpressionList{
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.f)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.f)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.f)),
+             });
 
-  ast::BinaryExpression expr(param.op, std::move(lhs), std::move(rhs));
+  ast::BinaryExpression expr(param.op, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -324,7 +333,7 @@ TEST_P(BinaryCompareUnsignedIntegerTest, Scalar) {
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::UintLiteral>(&u32, 4));
 
-  ast::BinaryExpression expr(param.op, std::move(lhs), std::move(rhs));
+  ast::BinaryExpression expr(param.op, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -346,24 +355,27 @@ TEST_P(BinaryCompareUnsignedIntegerTest, Vector) {
   ast::type::U32Type u32;
   ast::type::VectorType vec3(&u32, 3);
 
-  ast::ExpressionList vals;
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
-  auto* lhs = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* lhs = create<ast::TypeConstructorExpression>(
+      &vec3, ast::ExpressionList{
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::UintLiteral>(&u32, 1)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::UintLiteral>(&u32, 1)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::UintLiteral>(&u32, 1)),
+             });
 
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::UintLiteral>(&u32, 1)));
-  auto* rhs = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* rhs = create<ast::TypeConstructorExpression>(
+      &vec3, ast::ExpressionList{
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::UintLiteral>(&u32, 1)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::UintLiteral>(&u32, 1)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::UintLiteral>(&u32, 1)),
+             });
 
-  ast::BinaryExpression expr(param.op, std::move(lhs), std::move(rhs));
+  ast::BinaryExpression expr(param.op, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -402,7 +414,7 @@ TEST_P(BinaryCompareSignedIntegerTest, Scalar) {
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 4));
 
-  ast::BinaryExpression expr(param.op, std::move(lhs), std::move(rhs));
+  ast::BinaryExpression expr(param.op, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -424,24 +436,27 @@ TEST_P(BinaryCompareSignedIntegerTest, Vector) {
   ast::type::I32Type i32;
   ast::type::VectorType vec3(&i32, 3);
 
-  ast::ExpressionList vals;
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
-  auto* lhs = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* lhs = create<ast::TypeConstructorExpression>(
+      &vec3, ast::ExpressionList{
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::SintLiteral>(&i32, 1)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::SintLiteral>(&i32, 1)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::SintLiteral>(&i32, 1)),
+             });
 
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::SintLiteral>(&i32, 1)));
-  auto* rhs = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* rhs = create<ast::TypeConstructorExpression>(
+      &vec3, ast::ExpressionList{
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::SintLiteral>(&i32, 1)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::SintLiteral>(&i32, 1)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::SintLiteral>(&i32, 1)),
+             });
 
-  ast::BinaryExpression expr(param.op, std::move(lhs), std::move(rhs));
+  ast::BinaryExpression expr(param.op, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -480,7 +495,7 @@ TEST_P(BinaryCompareFloatTest, Scalar) {
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 4.5f));
 
-  ast::BinaryExpression expr(param.op, std::move(lhs), std::move(rhs));
+  ast::BinaryExpression expr(param.op, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -502,24 +517,27 @@ TEST_P(BinaryCompareFloatTest, Vector) {
   ast::type::F32Type f32;
   ast::type::VectorType vec3(&f32, 3);
 
-  ast::ExpressionList vals;
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  auto* lhs = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* lhs = create<ast::TypeConstructorExpression>(
+      &vec3, ast::ExpressionList{
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.f)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.f)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.f)),
+             });
 
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  auto* rhs = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* rhs = create<ast::TypeConstructorExpression>(
+      &vec3, ast::ExpressionList{
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.f)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.f)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.f)),
+             });
 
-  ast::BinaryExpression expr(param.op, std::move(lhs), std::move(rhs));
+  ast::BinaryExpression expr(param.op, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -551,20 +569,20 @@ TEST_F(BuilderTest, Binary_Multiply_VectorScalar) {
   ast::type::F32Type f32;
   ast::type::VectorType vec3(&f32, 3);
 
-  ast::ExpressionList vals;
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.f)));
-  auto* lhs = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* lhs = create<ast::TypeConstructorExpression>(
+      &vec3, ast::ExpressionList{
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.f)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.f)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.f)),
+             });
 
   auto* rhs = create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 1.f));
 
-  ast::BinaryExpression expr(ast::BinaryOp::kMultiply, std::move(lhs),
-                             std::move(rhs));
+  ast::BinaryExpression expr(ast::BinaryOp::kMultiply, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -594,10 +612,9 @@ TEST_F(BuilderTest, Binary_Multiply_ScalarVector) {
       create<ast::FloatLiteral>(&f32, 1.f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 1.f)));
-  auto* rhs = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* rhs = create<ast::TypeConstructorExpression>(&vec3, vals);
 
-  ast::BinaryExpression expr(ast::BinaryOp::kMultiply, std::move(lhs),
-                             std::move(rhs));
+  ast::BinaryExpression expr(ast::BinaryOp::kMultiply, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -624,8 +641,7 @@ TEST_F(BuilderTest, Binary_Multiply_MatrixScalar) {
 
   td.RegisterVariableForTesting(var);
 
-  ast::BinaryExpression expr(ast::BinaryOp::kMultiply, std::move(lhs),
-                             std::move(rhs));
+  ast::BinaryExpression expr(ast::BinaryOp::kMultiply, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -657,8 +673,7 @@ TEST_F(BuilderTest, Binary_Multiply_ScalarMatrix) {
 
   td.RegisterVariableForTesting(var);
 
-  ast::BinaryExpression expr(ast::BinaryOp::kMultiply, std::move(lhs),
-                             std::move(rhs));
+  ast::BinaryExpression expr(ast::BinaryOp::kMultiply, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -694,12 +709,11 @@ TEST_F(BuilderTest, Binary_Multiply_MatrixVector) {
       create<ast::FloatLiteral>(&f32, 1.f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 1.f)));
-  auto* rhs = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* rhs = create<ast::TypeConstructorExpression>(&vec3, vals);
 
   td.RegisterVariableForTesting(var);
 
-  ast::BinaryExpression expr(ast::BinaryOp::kMultiply, std::move(lhs),
-                             std::move(rhs));
+  ast::BinaryExpression expr(ast::BinaryOp::kMultiply, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -735,14 +749,13 @@ TEST_F(BuilderTest, Binary_Multiply_VectorMatrix) {
       create<ast::FloatLiteral>(&f32, 1.f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 1.f)));
-  auto* lhs = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* lhs = create<ast::TypeConstructorExpression>(&vec3, vals);
 
   auto* rhs = create<ast::IdentifierExpression>("mat");
 
   td.RegisterVariableForTesting(var);
 
-  ast::BinaryExpression expr(ast::BinaryOp::kMultiply, std::move(lhs),
-                             std::move(rhs));
+  ast::BinaryExpression expr(ast::BinaryOp::kMultiply, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -775,8 +788,7 @@ TEST_F(BuilderTest, Binary_Multiply_MatrixMatrix) {
 
   td.RegisterVariableForTesting(var);
 
-  ast::BinaryExpression expr(ast::BinaryOp::kMultiply, std::move(lhs),
-                             std::move(rhs));
+  ast::BinaryExpression expr(ast::BinaryOp::kMultiply, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -814,8 +826,7 @@ TEST_F(BuilderTest, Binary_LogicalAnd) {
                                     create<ast::ScalarConstructorExpression>(
                                         create<ast::SintLiteral>(&i32, 4)));
 
-  ast::BinaryExpression expr(ast::BinaryOp::kLogicalAnd, std::move(lhs),
-                             std::move(rhs));
+  ast::BinaryExpression expr(ast::BinaryOp::kLogicalAnd, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -861,8 +872,7 @@ TEST_F(BuilderTest, Binary_LogicalAnd_WithLoads) {
   td.RegisterVariableForTesting(a_var);
   td.RegisterVariableForTesting(b_var);
 
-  ast::BinaryExpression expr(ast::BinaryOp::kLogicalAnd, std::move(lhs),
-                             std::move(rhs));
+  ast::BinaryExpression expr(ast::BinaryOp::kLogicalAnd, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -910,8 +920,7 @@ TEST_F(BuilderTest, Binary_LogicalOr) {
                                     create<ast::ScalarConstructorExpression>(
                                         create<ast::SintLiteral>(&i32, 4)));
 
-  ast::BinaryExpression expr(ast::BinaryOp::kLogicalOr, std::move(lhs),
-                             std::move(rhs));
+  ast::BinaryExpression expr(ast::BinaryOp::kLogicalOr, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -957,8 +966,7 @@ TEST_F(BuilderTest, Binary_LogicalOr_WithLoads) {
   td.RegisterVariableForTesting(a_var);
   td.RegisterVariableForTesting(b_var);
 
-  ast::BinaryExpression expr(ast::BinaryOp::kLogicalOr, std::move(lhs),
-                             std::move(rhs));
+  ast::BinaryExpression expr(ast::BinaryOp::kLogicalOr, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
diff --git a/src/writer/spirv/builder_block_test.cc b/src/writer/spirv/builder_block_test.cc
index 8e5d888973..362536ac5c 100644
--- a/src/writer/spirv/builder_block_test.cc
+++ b/src/writer/spirv/builder_block_test.cc
@@ -57,7 +57,7 @@ TEST_F(BuilderTest, Block) {
       create<ast::ScalarConstructorExpression>(
           create<ast::FloatLiteral>(&f32, 2.0f))));
 
-  outer.append(std::move(inner));
+  outer.append(inner);
   outer.append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>("var"),
       create<ast::ScalarConstructorExpression>(
diff --git a/src/writer/spirv/builder_call_test.cc b/src/writer/spirv/builder_call_test.cc
index fcd1cd6e02..1ca5c0e88f 100644
--- a/src/writer/spirv/builder_call_test.cc
+++ b/src/writer/spirv/builder_call_test.cc
@@ -53,7 +53,7 @@ TEST_F(BuilderTest, Expression_Call) {
   body->append(create<ast::ReturnStatement>(create<ast::BinaryExpression>(
       ast::BinaryOp::kAdd, create<ast::IdentifierExpression>("a"),
       create<ast::IdentifierExpression>("b"))));
-  ast::Function a_func("a_func", std::move(func_params), &f32, std::move(body));
+  ast::Function a_func("a_func", func_params, &f32, body);
 
   ast::Function func("main", {}, &void_type, create<ast::BlockStatement>());
 
@@ -64,7 +64,7 @@ TEST_F(BuilderTest, Expression_Call) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   ast::CallExpression expr(create<ast::IdentifierExpression>("a_func"),
-                           std::move(call_params));
+                           call_params);
 
   ASSERT_TRUE(td.DetermineFunction(&func)) << td.error();
   ASSERT_TRUE(td.DetermineFunction(&a_func)) << td.error();
@@ -114,8 +114,7 @@ TEST_F(BuilderTest, Statement_Call) {
       ast::BinaryOp::kAdd, create<ast::IdentifierExpression>("a"),
       create<ast::IdentifierExpression>("b"))));
 
-  ast::Function a_func("a_func", std::move(func_params), &void_type,
-                       std::move(body));
+  ast::Function a_func("a_func", func_params, &void_type, body);
 
   ast::Function func("main", {}, &void_type, create<ast::BlockStatement>());
 
@@ -126,7 +125,7 @@ TEST_F(BuilderTest, Statement_Call) {
       create<ast::FloatLiteral>(&f32, 1.f)));
 
   ast::CallStatement expr(create<ast::CallExpression>(
-      create<ast::IdentifierExpression>("a_func"), std::move(call_params)));
+      create<ast::IdentifierExpression>("a_func"), call_params));
 
   ASSERT_TRUE(td.DetermineFunction(&func)) << td.error();
   ASSERT_TRUE(td.DetermineFunction(&a_func)) << td.error();
diff --git a/src/writer/spirv/builder_constructor_expression_test.cc b/src/writer/spirv/builder_constructor_expression_test.cc
index 783d8dd544..8af8ad502f 100644
--- a/src/writer/spirv/builder_constructor_expression_test.cc
+++ b/src/writer/spirv/builder_constructor_expression_test.cc
@@ -53,7 +53,7 @@ using BuilderTest = TestHelper;
 TEST_F(BuilderTest, Constructor_Const) {
   ast::type::F32Type f32;
   auto* fl = create<ast::FloatLiteral>(&f32, 42.2f);
-  ast::ScalarConstructorExpression c(std::move(fl));
+  ast::ScalarConstructorExpression c(fl);
 
   EXPECT_EQ(b.GenerateConstructorExpression(nullptr, &c, true), 2u);
   ASSERT_FALSE(b.has_error()) << b.error();
@@ -75,7 +75,7 @@ TEST_F(BuilderTest, Constructor_Type) {
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
-  ast::TypeConstructorExpression t(&vec, std::move(vals));
+  ast::TypeConstructorExpression t(&vec, vals);
 
   EXPECT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -100,15 +100,13 @@ TEST_F(BuilderTest, Constructor_Type_WithCasts) {
       create<ast::SintLiteral>(&i32, 1)));
 
   ast::ExpressionList vals;
-  vals.push_back(
-      create<ast::TypeConstructorExpression>(&f32, std::move(type_vals)));
+  vals.push_back(create<ast::TypeConstructorExpression>(&f32, type_vals));
 
   type_vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 1)));
-  vals.push_back(
-      create<ast::TypeConstructorExpression>(&f32, std::move(type_vals)));
+  vals.push_back(create<ast::TypeConstructorExpression>(&f32, type_vals));
 
-  ast::TypeConstructorExpression t(&vec, std::move(vals));
+  ast::TypeConstructorExpression t(&vec, vals);
 
   EXPECT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -142,7 +140,7 @@ TEST_F(BuilderTest, Constructor_Type_WithAlias) {
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.3)));
 
-  ast::TypeConstructorExpression cast(&alias, std::move(params));
+  ast::TypeConstructorExpression cast(&alias, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -170,7 +168,7 @@ TEST_F(BuilderTest, Constructor_Type_IdentifierExpression_Param) {
       create<ast::FloatLiteral>(&f32, 1.0f)));
   vals.push_back(create<ast::IdentifierExpression>("ident"));
 
-  ast::TypeConstructorExpression t(&vec, std::move(vals));
+  ast::TypeConstructorExpression t(&vec, vals);
 
   td.RegisterVariableForTesting(var);
   EXPECT_TRUE(td.DetermineResultType(&t)) << td.error();
@@ -208,7 +206,7 @@ TEST_F(BuilderTest, Constructor_Vector_Bitcast_Params) {
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 1)));
 
-  ast::TypeConstructorExpression t(&vec, std::move(vals));
+  ast::TypeConstructorExpression t(&vec, vals);
 
   EXPECT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -243,9 +241,9 @@ TEST_F(BuilderTest, Constructor_Type_NonConst_Value_Fails) {
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 1.0f)));
-  vals.push_back(std::move(rel));
+  vals.push_back(rel);
 
-  ast::TypeConstructorExpression t(&vec, std::move(vals));
+  ast::TypeConstructorExpression t(&vec, vals);
 
   EXPECT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -261,7 +259,7 @@ TEST_F(BuilderTest, Constructor_Type_Bool_With_Bool) {
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::BoolLiteral>(&bool_type, true)));
 
-  ast::TypeConstructorExpression t(&bool_type, std::move(vals));
+  ast::TypeConstructorExpression t(&bool_type, vals);
 
   ASSERT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -285,7 +283,7 @@ TEST_F(BuilderTest, Constructor_Type_I32_With_I32) {
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2)));
 
-  ast::TypeConstructorExpression cast(&i32, std::move(params));
+  ast::TypeConstructorExpression cast(&i32, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -307,7 +305,7 @@ TEST_F(BuilderTest, Constructor_Type_U32_With_U32) {
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::UintLiteral>(&u32, 2)));
 
-  ast::TypeConstructorExpression cast(&u32, std::move(params));
+  ast::TypeConstructorExpression cast(&u32, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -329,7 +327,7 @@ TEST_F(BuilderTest, Constructor_Type_F32_With_F32) {
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
 
-  ast::TypeConstructorExpression cast(&f32, std::move(params));
+  ast::TypeConstructorExpression cast(&f32, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -354,7 +352,7 @@ TEST_F(BuilderTest, Constructor_Type_Vec2_With_F32_F32) {
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
 
-  ast::TypeConstructorExpression cast(&vec, std::move(params));
+  ast::TypeConstructorExpression cast(&vec, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -380,7 +378,7 @@ TEST_F(BuilderTest, Constructor_Type_Vec3_With_F32_F32_F32) {
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
 
-  ast::TypeConstructorExpression cast(&vec, std::move(params));
+  ast::TypeConstructorExpression cast(&vec, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -408,10 +406,9 @@ TEST_F(BuilderTest, Constructor_Type_Vec3_With_F32_Vec2) {
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vec_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vec_params));
 
-  ast::TypeConstructorExpression cast(&vec3, std::move(params));
+  ast::TypeConstructorExpression cast(&vec3, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -443,12 +440,11 @@ TEST_F(BuilderTest, Constructor_Type_Vec3_With_Vec2_F32) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vec_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vec_params));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
 
-  ast::TypeConstructorExpression cast(&vec3, std::move(params));
+  ast::TypeConstructorExpression cast(&vec3, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -482,7 +478,7 @@ TEST_F(BuilderTest, Constructor_Type_Vec4_With_F32_F32_F32_F32) {
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
 
-  ast::TypeConstructorExpression cast(&vec, std::move(params));
+  ast::TypeConstructorExpression cast(&vec, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -512,10 +508,9 @@ TEST_F(BuilderTest, Constructor_Type_Vec4_With_F32_F32_Vec2) {
       create<ast::FloatLiteral>(&f32, 2.0)));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vec_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vec_params));
 
-  ast::TypeConstructorExpression cast(&vec4, std::move(params));
+  ast::TypeConstructorExpression cast(&vec4, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -549,12 +544,11 @@ TEST_F(BuilderTest, Constructor_Type_Vec4_With_F32_Vec2_F32) {
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vec_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vec_params));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
 
-  ast::TypeConstructorExpression cast(&vec4, std::move(params));
+  ast::TypeConstructorExpression cast(&vec4, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -586,14 +580,13 @@ TEST_F(BuilderTest, Constructor_Type_Vec4_With_Vec2_F32_F32) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vec_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vec_params));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
 
-  ast::TypeConstructorExpression cast(&vec4, std::move(params));
+  ast::TypeConstructorExpression cast(&vec4, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -631,12 +624,10 @@ TEST_F(BuilderTest, Constructor_Type_Vec4_With_Vec2_Vec2) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vec_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vec2_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vec_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vec2_params));
 
-  ast::TypeConstructorExpression cast(&vec4, std::move(params));
+  ast::TypeConstructorExpression cast(&vec4, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -674,10 +665,9 @@ TEST_F(BuilderTest, Constructor_Type_Vec4_With_F32_Vec3) {
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec3, std::move(vec_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec3, vec_params));
 
-  ast::TypeConstructorExpression cast(&vec4, std::move(params));
+  ast::TypeConstructorExpression cast(&vec4, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -712,12 +702,11 @@ TEST_F(BuilderTest, Constructor_Type_Vec4_With_Vec3_F32) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec3, std::move(vec_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec3, vec_params));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
 
-  ast::TypeConstructorExpression cast(&vec4, std::move(params));
+  ast::TypeConstructorExpression cast(&vec4, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -752,10 +741,9 @@ TEST_F(BuilderTest, Constructor_Type_ModuleScope_Vec3_With_F32_Vec2) {
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vec_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vec_params));
 
-  ast::TypeConstructorExpression cast(&vec3, std::move(params));
+  ast::TypeConstructorExpression cast(&vec3, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -788,12 +776,11 @@ TEST_F(BuilderTest, Constructor_Type_ModuleScope_Vec3_With_Vec2_F32) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vec_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vec_params));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
 
-  ast::TypeConstructorExpression cast(&vec3, std::move(params));
+  ast::TypeConstructorExpression cast(&vec3, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -830,10 +817,9 @@ TEST_F(BuilderTest, Constructor_Type_ModuleScope_Vec4_With_F32_F32_Vec2) {
       create<ast::FloatLiteral>(&f32, 2.0)));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vec_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vec_params));
 
-  ast::TypeConstructorExpression cast(&vec4, std::move(params));
+  ast::TypeConstructorExpression cast(&vec4, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -868,12 +854,11 @@ TEST_F(BuilderTest, Constructor_Type_ModuleScope_Vec4_With_F32_Vec2_F32) {
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vec_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vec_params));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
 
-  ast::TypeConstructorExpression cast(&vec4, std::move(params));
+  ast::TypeConstructorExpression cast(&vec4, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -906,14 +891,13 @@ TEST_F(BuilderTest, Constructor_Type_ModuleScope_Vec4_With_Vec2_F32_F32) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vec_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vec_params));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
 
-  ast::TypeConstructorExpression cast(&vec4, std::move(params));
+  ast::TypeConstructorExpression cast(&vec4, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -952,12 +936,10 @@ TEST_F(BuilderTest, Constructor_Type_ModuleScope_Vec4_With_Vec2_Vec2) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vec_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec2, std::move(vec2_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vec_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec2, vec2_params));
 
-  ast::TypeConstructorExpression cast(&vec4, std::move(params));
+  ast::TypeConstructorExpression cast(&vec4, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -996,10 +978,9 @@ TEST_F(BuilderTest, Constructor_Type_ModuleScope_Vec4_With_F32_Vec3) {
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec3, std::move(vec_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec3, vec_params));
 
-  ast::TypeConstructorExpression cast(&vec4, std::move(params));
+  ast::TypeConstructorExpression cast(&vec4, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1036,12 +1017,11 @@ TEST_F(BuilderTest, Constructor_Type_ModuleScope_Vec4_With_Vec3_F32) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec3, std::move(vec_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec3, vec_params));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
 
-  ast::TypeConstructorExpression cast(&vec4, std::move(params));
+  ast::TypeConstructorExpression cast(&vec4, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1082,12 +1062,10 @@ TEST_F(BuilderTest, Constructor_Type_Mat2x2_With_Vec2_Vec2) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec2_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec2_params));
 
-  ast::TypeConstructorExpression cast(&mat, std::move(params));
+  ast::TypeConstructorExpression cast(&mat, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1127,14 +1105,11 @@ TEST_F(BuilderTest, Constructor_Type_Mat3x2_With_Vec2_Vec2_Vec2) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec2_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec3_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec2_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec3_params));
 
-  ast::TypeConstructorExpression cast(&mat, std::move(params));
+  ast::TypeConstructorExpression cast(&mat, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1180,16 +1155,12 @@ TEST_F(BuilderTest, Constructor_Type_Mat4x2_With_Vec2_Vec2_Vec2_Vec2) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec2_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec3_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec4_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec2_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec3_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec4_params));
 
-  ast::TypeConstructorExpression cast(&mat, std::move(params));
+  ast::TypeConstructorExpression cast(&mat, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1227,12 +1198,10 @@ TEST_F(BuilderTest, Constructor_Type_Mat2x3_With_Vec3_Vec3) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec2_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec2_params));
 
-  ast::TypeConstructorExpression cast(&mat, std::move(params));
+  ast::TypeConstructorExpression cast(&mat, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1278,14 +1247,11 @@ TEST_F(BuilderTest, Constructor_Type_Mat3x3_With_Vec3_Vec3_Vec3) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec2_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec3_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec2_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec3_params));
 
-  ast::TypeConstructorExpression cast(&mat, std::move(params));
+  ast::TypeConstructorExpression cast(&mat, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1339,16 +1305,12 @@ TEST_F(BuilderTest, Constructor_Type_Mat4x3_With_Vec3_Vec3_Vec3_Vec3) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec2_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec3_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec4_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec2_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec3_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec4_params));
 
-  ast::TypeConstructorExpression cast(&mat, std::move(params));
+  ast::TypeConstructorExpression cast(&mat, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1390,12 +1352,10 @@ TEST_F(BuilderTest, Constructor_Type_Mat2x4_With_Vec4_Vec4) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec2_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec2_params));
 
-  ast::TypeConstructorExpression cast(&mat, std::move(params));
+  ast::TypeConstructorExpression cast(&mat, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1447,14 +1407,11 @@ TEST_F(BuilderTest, Constructor_Type_Mat3x4_With_Vec4_Vec4_Vec4) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec2_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec3_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec2_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec3_params));
 
-  ast::TypeConstructorExpression cast(&mat, std::move(params));
+  ast::TypeConstructorExpression cast(&mat, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1516,16 +1473,12 @@ TEST_F(BuilderTest, Constructor_Type_Mat4x4_With_Vec4_Vec4_Vec4_Vec4) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec2_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec3_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec4_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec2_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec3_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec4_params));
 
-  ast::TypeConstructorExpression cast(&mat, std::move(params));
+  ast::TypeConstructorExpression cast(&mat, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1557,7 +1510,7 @@ TEST_F(BuilderTest, Constructor_Type_Array_5_F32) {
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
 
-  ast::TypeConstructorExpression cast(&ary, std::move(params));
+  ast::TypeConstructorExpression cast(&ary, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1595,12 +1548,10 @@ TEST_F(BuilderTest, Constructor_Type_Array_2_Vec3) {
       create<ast::FloatLiteral>(&f32, 2.0)));
 
   ast::ExpressionList params;
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec_params)));
-  params.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec2_params)));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec_params));
+  params.push_back(create<ast::TypeConstructorExpression>(&vec, vec2_params));
 
-  ast::TypeConstructorExpression cast(&ary, std::move(params));
+  ast::TypeConstructorExpression cast(&ary, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1624,11 +1575,11 @@ TEST_F(BuilderTest, Constructor_Type_Struct) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &f32, std::move(decos)));
-  members.push_back(create<ast::StructMember>("b", &vec, std::move(decos)));
+  members.push_back(create<ast::StructMember>("a", &f32, decos));
+  members.push_back(create<ast::StructMember>("b", &vec, decos));
 
-  auto* s = create<ast::Struct>(std::move(members));
-  ast::type::StructType s_type("my_struct", std::move(s));
+  auto* s = create<ast::Struct>(members);
+  ast::type::StructType s_type("my_struct", s);
 
   ast::ExpressionList vec_vals;
   vec_vals.push_back(create<ast::ScalarConstructorExpression>(
@@ -1641,10 +1592,9 @@ TEST_F(BuilderTest, Constructor_Type_Struct) {
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2)));
-  vals.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec_vals)));
+  vals.push_back(create<ast::TypeConstructorExpression>(&vec, vec_vals));
 
-  ast::TypeConstructorExpression t(&s_type, std::move(vals));
+  ast::TypeConstructorExpression t(&s_type, vals);
 
   EXPECT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -1666,7 +1616,7 @@ TEST_F(BuilderTest, Constructor_Type_ZeroInit_F32) {
   ast::type::F32Type f32;
 
   ast::ExpressionList vals;
-  ast::TypeConstructorExpression t(&f32, std::move(vals));
+  ast::TypeConstructorExpression t(&f32, vals);
 
   EXPECT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -1684,7 +1634,7 @@ TEST_F(BuilderTest, Constructor_Type_ZeroInit_I32) {
   ast::type::I32Type i32;
 
   ast::ExpressionList vals;
-  ast::TypeConstructorExpression t(&i32, std::move(vals));
+  ast::TypeConstructorExpression t(&i32, vals);
 
   EXPECT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -1702,7 +1652,7 @@ TEST_F(BuilderTest, Constructor_Type_ZeroInit_U32) {
   ast::type::U32Type u32;
 
   ast::ExpressionList vals;
-  ast::TypeConstructorExpression t(&u32, std::move(vals));
+  ast::TypeConstructorExpression t(&u32, vals);
 
   EXPECT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -1720,7 +1670,7 @@ TEST_F(BuilderTest, Constructor_Type_ZeroInit_Bool) {
   ast::type::BoolType bool_type;
 
   ast::ExpressionList vals;
-  ast::TypeConstructorExpression t(&bool_type, std::move(vals));
+  ast::TypeConstructorExpression t(&bool_type, vals);
 
   EXPECT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -1739,7 +1689,7 @@ TEST_F(BuilderTest, Constructor_Type_ZeroInit_Vector) {
   ast::type::VectorType vec(&i32, 2);
 
   ast::ExpressionList vals;
-  ast::TypeConstructorExpression t(&vec, std::move(vals));
+  ast::TypeConstructorExpression t(&vec, vals);
 
   EXPECT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -1759,7 +1709,7 @@ TEST_F(BuilderTest, Constructor_Type_ZeroInit_Matrix) {
   ast::type::MatrixType mat(&f32, 2, 4);
 
   ast::ExpressionList vals;
-  ast::TypeConstructorExpression t(&mat, std::move(vals));
+  ast::TypeConstructorExpression t(&mat, vals);
 
   EXPECT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -1780,7 +1730,7 @@ TEST_F(BuilderTest, Constructor_Type_ZeroInit_Array) {
   ast::type::ArrayType ary(&i32, 2);
 
   ast::ExpressionList vals;
-  ast::TypeConstructorExpression t(&ary, std::move(vals));
+  ast::TypeConstructorExpression t(&ary, vals);
 
   EXPECT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -1802,13 +1752,13 @@ TEST_F(BuilderTest, Constructor_Type_ZeroInit_Struct) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &f32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("a", &f32, decos));
 
-  auto* s = create<ast::Struct>(std::move(members));
-  ast::type::StructType s_type("my_struct", std::move(s));
+  auto* s = create<ast::Struct>(members);
+  ast::type::StructType s_type("my_struct", s);
 
   ast::ExpressionList vals;
-  ast::TypeConstructorExpression t(&s_type, std::move(vals));
+  ast::TypeConstructorExpression t(&s_type, vals);
 
   EXPECT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -1831,7 +1781,7 @@ TEST_F(BuilderTest, Constructor_Type_Convert_U32_To_I32) {
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::UintLiteral>(&u32, 2)));
 
-  ast::TypeConstructorExpression cast(&i32, std::move(params));
+  ast::TypeConstructorExpression cast(&i32, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1855,7 +1805,7 @@ TEST_F(BuilderTest, Constructor_Type_Convert_I32_To_U32) {
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2)));
 
-  ast::TypeConstructorExpression cast(&u32, std::move(params));
+  ast::TypeConstructorExpression cast(&u32, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1879,7 +1829,7 @@ TEST_F(BuilderTest, Constructor_Type_Convert_F32_To_I32) {
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.4)));
 
-  ast::TypeConstructorExpression cast(&i32, std::move(params));
+  ast::TypeConstructorExpression cast(&i32, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1903,7 +1853,7 @@ TEST_F(BuilderTest, Constructor_Type_Convert_F32_To_U32) {
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.4)));
 
-  ast::TypeConstructorExpression cast(&u32, std::move(params));
+  ast::TypeConstructorExpression cast(&u32, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1927,7 +1877,7 @@ TEST_F(BuilderTest, Constructor_Type_Convert_I32_To_F32) {
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2)));
 
-  ast::TypeConstructorExpression cast(&f32, std::move(params));
+  ast::TypeConstructorExpression cast(&f32, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1951,7 +1901,7 @@ TEST_F(BuilderTest, Constructor_Type_Convert_U32_To_F32) {
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::UintLiteral>(&u32, 2)));
 
-  ast::TypeConstructorExpression cast(&f32, std::move(params));
+  ast::TypeConstructorExpression cast(&f32, params);
 
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
 
@@ -1978,7 +1928,7 @@ TEST_F(BuilderTest, Constructor_Type_Convert_Vectors_U32_to_I32) {
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("i"));
 
-  ast::TypeConstructorExpression cast(&ivec3, std::move(params));
+  ast::TypeConstructorExpression cast(&ivec3, params);
 
   td.RegisterVariableForTesting(var);
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
@@ -2012,7 +1962,7 @@ TEST_F(BuilderTest, Constructor_Type_Convert_Vectors_F32_to_I32) {
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("i"));
 
-  ast::TypeConstructorExpression cast(&ivec3, std::move(params));
+  ast::TypeConstructorExpression cast(&ivec3, params);
 
   td.RegisterVariableForTesting(var);
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
@@ -2046,7 +1996,7 @@ TEST_F(BuilderTest, Constructor_Type_Convert_Vectors_I32_to_U32) {
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("i"));
 
-  ast::TypeConstructorExpression cast(&uvec3, std::move(params));
+  ast::TypeConstructorExpression cast(&uvec3, params);
 
   td.RegisterVariableForTesting(var);
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
@@ -2080,7 +2030,7 @@ TEST_F(BuilderTest, Constructor_Type_Convert_Vectors_F32_to_U32) {
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("i"));
 
-  ast::TypeConstructorExpression cast(&uvec3, std::move(params));
+  ast::TypeConstructorExpression cast(&uvec3, params);
 
   td.RegisterVariableForTesting(var);
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
@@ -2114,7 +2064,7 @@ TEST_F(BuilderTest, Constructor_Type_Convert_Vectors_I32_to_F32) {
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("i"));
 
-  ast::TypeConstructorExpression cast(&fvec3, std::move(params));
+  ast::TypeConstructorExpression cast(&fvec3, params);
 
   td.RegisterVariableForTesting(var);
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
@@ -2148,7 +2098,7 @@ TEST_F(BuilderTest, Constructor_Type_Convert_Vectors_U32_to_F32) {
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("i"));
 
-  ast::TypeConstructorExpression cast(&fvec3, std::move(params));
+  ast::TypeConstructorExpression cast(&fvec3, params);
 
   td.RegisterVariableForTesting(var);
   ASSERT_TRUE(td.DetermineResultType(&cast)) << td.error();
@@ -2183,7 +2133,7 @@ TEST_F(BuilderTest, IsConstructorConst_GlobalVectorWithAllConstConstructors) {
       create<ast::FloatLiteral>(&f32, 2.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.f)));
-  ast::TypeConstructorExpression t(&vec, std::move(params));
+  ast::TypeConstructorExpression t(&vec, params);
 
   ASSERT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -2200,7 +2150,7 @@ TEST_F(BuilderTest, IsConstructorConst_GlobalVector_WithIdent) {
   params.push_back(create<ast::IdentifierExpression>("a"));
   params.push_back(create<ast::IdentifierExpression>("b"));
   params.push_back(create<ast::IdentifierExpression>("c"));
-  ast::TypeConstructorExpression t(&vec, std::move(params));
+  ast::TypeConstructorExpression t(&vec, params);
 
   ast::Variable var_a("a", ast::StorageClass::kPrivate, &f32);
   ast::Variable var_b("b", ast::StorageClass::kPrivate, &f32);
@@ -2230,7 +2180,7 @@ TEST_F(BuilderTest, IsConstructorConst_GlobalArrayWithAllConstConstructors) {
       create<ast::FloatLiteral>(&f32, 2.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.f)));
-  auto* first = create<ast::TypeConstructorExpression>(&vec, std::move(params));
+  auto* first = create<ast::TypeConstructorExpression>(&vec, params);
 
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 1.f)));
@@ -2238,13 +2188,12 @@ TEST_F(BuilderTest, IsConstructorConst_GlobalArrayWithAllConstConstructors) {
       create<ast::FloatLiteral>(&f32, 2.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.f)));
-  auto* second =
-      create<ast::TypeConstructorExpression>(&vec, std::move(params));
+  auto* second = create<ast::TypeConstructorExpression>(&vec, params);
 
   ast::ExpressionList ary_params;
-  ary_params.push_back(std::move(first));
-  ary_params.push_back(std::move(second));
-  ast::TypeConstructorExpression t(&ary, std::move(ary_params));
+  ary_params.push_back(first);
+  ary_params.push_back(second);
+  ast::TypeConstructorExpression t(&ary, ary_params);
 
   ASSERT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -2263,15 +2212,13 @@ TEST_F(BuilderTest,
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 1.0)));
-  vec_params.push_back(
-      create<ast::TypeConstructorExpression>(&f32, std::move(params)));
+  vec_params.push_back(create<ast::TypeConstructorExpression>(&f32, params));
 
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
-  vec_params.push_back(
-      create<ast::TypeConstructorExpression>(&f32, std::move(params)));
+  vec_params.push_back(create<ast::TypeConstructorExpression>(&f32, params));
 
-  ast::TypeConstructorExpression t(&vec, std::move(vec_params));
+  ast::TypeConstructorExpression t(&vec, vec_params);
 
   ASSERT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -2290,15 +2237,13 @@ TEST_F(BuilderTest, IsConstructorConst_GlobalWithTypeCastConstructor) {
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 1)));
-  vec_params.push_back(
-      create<ast::TypeConstructorExpression>(&f32, std::move(params)));
+  vec_params.push_back(create<ast::TypeConstructorExpression>(&f32, params));
 
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2)));
-  vec_params.push_back(
-      create<ast::TypeConstructorExpression>(&f32, std::move(params)));
+  vec_params.push_back(create<ast::TypeConstructorExpression>(&f32, params));
 
-  ast::TypeConstructorExpression t(&vec, std::move(vec_params));
+  ast::TypeConstructorExpression t(&vec, vec_params);
 
   ASSERT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -2318,7 +2263,7 @@ TEST_F(BuilderTest, IsConstructorConst_VectorWithAllConstConstructors) {
       create<ast::FloatLiteral>(&f32, 2.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.f)));
-  ast::TypeConstructorExpression t(&vec, std::move(params));
+  ast::TypeConstructorExpression t(&vec, params);
 
   ASSERT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -2335,7 +2280,7 @@ TEST_F(BuilderTest, IsConstructorConst_Vector_WithIdent) {
   params.push_back(create<ast::IdentifierExpression>("a"));
   params.push_back(create<ast::IdentifierExpression>("b"));
   params.push_back(create<ast::IdentifierExpression>("c"));
-  ast::TypeConstructorExpression t(&vec, std::move(params));
+  ast::TypeConstructorExpression t(&vec, params);
 
   ast::Variable var_a("a", ast::StorageClass::kPrivate, &f32);
   ast::Variable var_b("b", ast::StorageClass::kPrivate, &f32);
@@ -2364,7 +2309,7 @@ TEST_F(BuilderTest, IsConstructorConst_ArrayWithAllConstConstructors) {
       create<ast::FloatLiteral>(&f32, 2.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.f)));
-  auto* first = create<ast::TypeConstructorExpression>(&vec, std::move(params));
+  auto* first = create<ast::TypeConstructorExpression>(&vec, params);
 
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 1.f)));
@@ -2372,13 +2317,12 @@ TEST_F(BuilderTest, IsConstructorConst_ArrayWithAllConstConstructors) {
       create<ast::FloatLiteral>(&f32, 2.f)));
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.f)));
-  auto* second =
-      create<ast::TypeConstructorExpression>(&vec, std::move(params));
+  auto* second = create<ast::TypeConstructorExpression>(&vec, params);
 
   ast::ExpressionList ary_params;
-  ary_params.push_back(std::move(first));
-  ary_params.push_back(std::move(second));
-  ast::TypeConstructorExpression t(&ary, std::move(ary_params));
+  ary_params.push_back(first);
+  ary_params.push_back(second);
+  ast::TypeConstructorExpression t(&ary, ary_params);
 
   ASSERT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -2397,15 +2341,13 @@ TEST_F(BuilderTest, IsConstructorConst_VectorWith_TypeCastConstConstructors) {
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 1)));
-  vec_params.push_back(
-      create<ast::TypeConstructorExpression>(&f32, std::move(params)));
+  vec_params.push_back(create<ast::TypeConstructorExpression>(&f32, params));
 
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2)));
-  vec_params.push_back(
-      create<ast::TypeConstructorExpression>(&f32, std::move(params)));
+  vec_params.push_back(create<ast::TypeConstructorExpression>(&f32, params));
 
-  ast::TypeConstructorExpression t(&vec, std::move(vec_params));
+  ast::TypeConstructorExpression t(&vec, vec_params);
 
   ASSERT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -2424,15 +2366,13 @@ TEST_F(BuilderTest, IsConstructorConst_WithTypeCastConstructor) {
   ast::ExpressionList params;
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 1)));
-  vec_params.push_back(
-      create<ast::TypeConstructorExpression>(&f32, std::move(params)));
+  vec_params.push_back(create<ast::TypeConstructorExpression>(&f32, params));
 
   params.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 2)));
-  vec_params.push_back(
-      create<ast::TypeConstructorExpression>(&f32, std::move(params)));
+  vec_params.push_back(create<ast::TypeConstructorExpression>(&f32, params));
 
-  ast::TypeConstructorExpression t(&vec, std::move(vec_params));
+  ast::TypeConstructorExpression t(&vec, vec_params);
 
   ASSERT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -2451,7 +2391,7 @@ TEST_F(BuilderTest, IsConstructorConst_BitCastScalars) {
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 1)));
 
-  ast::TypeConstructorExpression t(&vec, std::move(vals));
+  ast::TypeConstructorExpression t(&vec, vals);
 
   ASSERT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -2465,11 +2405,11 @@ TEST_F(BuilderTest, IsConstructorConst_Struct) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &f32, std::move(decos)));
-  members.push_back(create<ast::StructMember>("b", &vec, std::move(decos)));
+  members.push_back(create<ast::StructMember>("a", &f32, decos));
+  members.push_back(create<ast::StructMember>("b", &vec, decos));
 
-  auto* s = create<ast::Struct>(std::move(members));
-  ast::type::StructType s_type("my_struct", std::move(s));
+  auto* s = create<ast::Struct>(members);
+  ast::type::StructType s_type("my_struct", s);
 
   ast::ExpressionList vec_vals;
   vec_vals.push_back(create<ast::ScalarConstructorExpression>(
@@ -2482,10 +2422,9 @@ TEST_F(BuilderTest, IsConstructorConst_Struct) {
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2)));
-  vals.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec_vals)));
+  vals.push_back(create<ast::TypeConstructorExpression>(&vec, vec_vals));
 
-  ast::TypeConstructorExpression t(&s_type, std::move(vals));
+  ast::TypeConstructorExpression t(&s_type, vals);
 
   ASSERT_TRUE(td.DetermineResultType(&t)) << td.error();
 
@@ -2499,11 +2438,11 @@ TEST_F(BuilderTest, IsConstructorConst_Struct_WithIdentSubExpression) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &f32, std::move(decos)));
-  members.push_back(create<ast::StructMember>("b", &vec, std::move(decos)));
+  members.push_back(create<ast::StructMember>("a", &f32, decos));
+  members.push_back(create<ast::StructMember>("b", &vec, decos));
 
-  auto* s = create<ast::Struct>(std::move(members));
-  ast::type::StructType s_type("my_struct", std::move(s));
+  auto* s = create<ast::Struct>(members);
+  ast::type::StructType s_type("my_struct", s);
 
   ast::ExpressionList vec_vals;
   vec_vals.push_back(create<ast::ScalarConstructorExpression>(
@@ -2515,10 +2454,9 @@ TEST_F(BuilderTest, IsConstructorConst_Struct_WithIdentSubExpression) {
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2)));
-  vals.push_back(
-      create<ast::TypeConstructorExpression>(&vec, std::move(vec_vals)));
+  vals.push_back(create<ast::TypeConstructorExpression>(&vec, vec_vals));
 
-  ast::TypeConstructorExpression t(&s_type, std::move(vals));
+  ast::TypeConstructorExpression t(&s_type, vals);
 
   ast::Variable var_a("a", ast::StorageClass::kPrivate, &f32);
   ast::Variable var_b("b", ast::StorageClass::kPrivate, &f32);
diff --git a/src/writer/spirv/builder_function_decoration_test.cc b/src/writer/spirv/builder_function_decoration_test.cc
index 716e620523..a68f7804ca 100644
--- a/src/writer/spirv/builder_function_decoration_test.cc
+++ b/src/writer/spirv/builder_function_decoration_test.cc
@@ -105,9 +105,9 @@ TEST_F(BuilderTest, FunctionDecoration_Stage_WithUnusedInterfaceIds) {
   EXPECT_TRUE(b.GenerateGlobalVariable(v_out)) << b.error();
   EXPECT_TRUE(b.GenerateGlobalVariable(v_wg)) << b.error();
 
-  mod.AddGlobalVariable(std::move(v_in));
-  mod.AddGlobalVariable(std::move(v_out));
-  mod.AddGlobalVariable(std::move(v_wg));
+  mod.AddGlobalVariable(v_in);
+  mod.AddGlobalVariable(v_out);
+  mod.AddGlobalVariable(v_wg);
 
   ASSERT_TRUE(b.GenerateFunction(&func)) << b.error();
   EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %1 "tint_6d795f696e"
@@ -150,7 +150,7 @@ TEST_F(BuilderTest, FunctionDecoration_Stage_WithUsedInterfaceIds) {
   body->append(create<ast::AssignmentStatement>(
       create<ast::IdentifierExpression>("my_out"),
       create<ast::IdentifierExpression>("my_in")));
-  func.set_body(std::move(body));
+  func.set_body(body);
 
   auto* v_in = create<ast::Variable>("my_in", ast::StorageClass::kInput, &f32);
   auto* v_out =
@@ -168,9 +168,9 @@ TEST_F(BuilderTest, FunctionDecoration_Stage_WithUsedInterfaceIds) {
   EXPECT_TRUE(b.GenerateGlobalVariable(v_out)) << b.error();
   EXPECT_TRUE(b.GenerateGlobalVariable(v_wg)) << b.error();
 
-  mod.AddGlobalVariable(std::move(v_in));
-  mod.AddGlobalVariable(std::move(v_out));
-  mod.AddGlobalVariable(std::move(v_wg));
+  mod.AddGlobalVariable(v_in);
+  mod.AddGlobalVariable(v_out);
+  mod.AddGlobalVariable(v_wg);
 
   ASSERT_TRUE(b.GenerateFunction(&func)) << b.error();
   EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %1 "tint_6d795f696e"
diff --git a/src/writer/spirv/builder_function_test.cc b/src/writer/spirv/builder_function_test.cc
index 7ff46769f8..528ee18d88 100644
--- a/src/writer/spirv/builder_function_test.cc
+++ b/src/writer/spirv/builder_function_test.cc
@@ -71,15 +71,15 @@ TEST_F(BuilderTest, Function_WithParams) {
   ast::VariableList params;
   auto* var_a = create<ast::Variable>("a", ast::StorageClass::kFunction, &f32);
   var_a->set_is_const(true);
-  params.push_back(std::move(var_a));
+  params.push_back(var_a);
   auto* var_b = create<ast::Variable>("b", ast::StorageClass::kFunction, &i32);
   var_b->set_is_const(true);
-  params.push_back(std::move(var_b));
+  params.push_back(var_b);
 
   auto* body = create<ast::BlockStatement>();
   body->append(
       create<ast::ReturnStatement>(create<ast::IdentifierExpression>("a")));
-  ast::Function func("a_func", std::move(params), &f32, std::move(body));
+  ast::Function func("a_func", params, &f32, body);
 
   td.RegisterVariableForTesting(func.params()[0]);
   td.RegisterVariableForTesting(func.params()[1]);
@@ -107,7 +107,7 @@ TEST_F(BuilderTest, Function_WithBody) {
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ReturnStatement>());
 
-  ast::Function func("a_func", {}, &void_type, std::move(body));
+  ast::Function func("a_func", {}, &void_type, body);
 
   ASSERT_TRUE(b.GenerateFunction(&func));
   EXPECT_EQ(DumpBuilder(b), R"(OpName %3 "tint_615f66756e63"
@@ -165,14 +165,14 @@ TEST_F(BuilderTest, Emit_Multiple_EntryPoint_With_Same_ModuleVar) {
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("d", &f32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("d", &f32, a_deco));
 
   ast::StructDecorationList s_decos;
   s_decos.push_back(create<ast::StructBlockDecoration>(Source{}));
 
-  auto* str = create<ast::Struct>(std::move(s_decos), std::move(members));
+  auto* str = create<ast::Struct>(s_decos, members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
   ast::type::AccessControlType ac(ast::AccessControl::kReadWrite, &s);
 
   auto* data_var = create<ast::DecoratedVariable>(
@@ -181,12 +181,12 @@ TEST_F(BuilderTest, Emit_Multiple_EntryPoint_With_Same_ModuleVar) {
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(0, Source{}));
-  data_var->set_decorations(std::move(decos));
+  data_var->set_decorations(decos);
 
   mod.AddConstructedType(&s);
 
   td.RegisterVariableForTesting(data_var);
-  mod.AddGlobalVariable(std::move(data_var));
+  mod.AddGlobalVariable(data_var);
 
   {
     ast::VariableList params;
@@ -196,15 +196,14 @@ TEST_F(BuilderTest, Emit_Multiple_EntryPoint_With_Same_ModuleVar) {
         create<ast::IdentifierExpression>("d")));
 
     auto* body = create<ast::BlockStatement>();
-    body->append(create<ast::VariableDeclStatement>(std::move(var)));
+    body->append(create<ast::VariableDeclStatement>(var));
     body->append(create<ast::ReturnStatement>());
 
-    auto* func = create<ast::Function>("a", std::move(params), &void_type,
-                                       std::move(body));
+    auto* func = create<ast::Function>("a", params, &void_type, body);
     func->add_decoration(
         create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
 
-    mod.AddFunction(std::move(func));
+    mod.AddFunction(func);
   }
 
   {
@@ -215,15 +214,14 @@ TEST_F(BuilderTest, Emit_Multiple_EntryPoint_With_Same_ModuleVar) {
         create<ast::IdentifierExpression>("d")));
 
     auto* body = create<ast::BlockStatement>();
-    body->append(create<ast::VariableDeclStatement>(std::move(var)));
+    body->append(create<ast::VariableDeclStatement>(var));
     body->append(create<ast::ReturnStatement>());
 
-    auto* func = create<ast::Function>("b", std::move(params), &void_type,
-                                       std::move(body));
+    auto* func = create<ast::Function>("b", params, &void_type, body);
     func->add_decoration(
         create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
 
-    mod.AddFunction(std::move(func));
+    mod.AddFunction(func);
   }
 
   ASSERT_TRUE(td.Determine()) << td.error();
diff --git a/src/writer/spirv/builder_function_variable_test.cc b/src/writer/spirv/builder_function_variable_test.cc
index 4b5beefc82..dbbdb79d72 100644
--- a/src/writer/spirv/builder_function_variable_test.cc
+++ b/src/writer/spirv/builder_function_variable_test.cc
@@ -77,12 +77,12 @@ TEST_F(BuilderTest, FunctionVar_WithConstantConstructor) {
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
-  auto* init = create<ast::TypeConstructorExpression>(&vec, std::move(vals));
+  auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
 
   EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
 
   ast::Variable v("var", ast::StorageClass::kOutput, &f32);
-  v.set_constructor(std::move(init));
+  v.set_constructor(init);
 
   td.RegisterVariableForTesting(&v);
 
@@ -121,14 +121,14 @@ TEST_F(BuilderTest, FunctionVar_WithNonConstantConstructor) {
   ast::ExpressionList vals;
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 1.0f)));
-  vals.push_back(std::move(rel));
+  vals.push_back(rel);
 
-  auto* init = create<ast::TypeConstructorExpression>(&vec, std::move(vals));
+  auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
 
   EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
 
   ast::Variable v("var", ast::StorageClass::kFunction, &vec);
-  v.set_constructor(std::move(init));
+  v.set_constructor(init);
 
   td.RegisterVariableForTesting(&v);
   b.push_function(Function{});
@@ -166,7 +166,7 @@ TEST_F(BuilderTest, FunctionVar_WithNonConstantConstructorLoadedFromVar) {
   ASSERT_TRUE(td.DetermineResultType(init)) << td.error();
 
   ast::Variable v("v", ast::StorageClass::kFunction, &f32);
-  v.set_constructor(std::move(init));
+  v.set_constructor(init);
   td.RegisterVariableForTesting(&v);
 
   ast::Variable v2("v2", ast::StorageClass::kFunction, &f32);
@@ -211,7 +211,7 @@ TEST_F(BuilderTest, FunctionVar_ConstWithVarInitializer) {
   EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
 
   ast::Variable v("v", ast::StorageClass::kFunction, &f32);
-  v.set_constructor(std::move(init));
+  v.set_constructor(init);
   td.RegisterVariableForTesting(&v);
 
   ast::Variable v2("v2", ast::StorageClass::kFunction, &f32);
@@ -254,12 +254,12 @@ TEST_F(BuilderTest, FunctionVar_Const) {
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
-  auto* init = create<ast::TypeConstructorExpression>(&vec, std::move(vals));
+  auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
 
   EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
 
   ast::Variable v("var", ast::StorageClass::kOutput, &f32);
-  v.set_constructor(std::move(init));
+  v.set_constructor(init);
   v.set_is_const(true);
 
   td.RegisterVariableForTesting(&v);
diff --git a/src/writer/spirv/builder_global_variable_test.cc b/src/writer/spirv/builder_global_variable_test.cc
index 332af1d3dd..97ed8ffb69 100644
--- a/src/writer/spirv/builder_global_variable_test.cc
+++ b/src/writer/spirv/builder_global_variable_test.cc
@@ -104,12 +104,12 @@ TEST_F(BuilderTest, GlobalVar_WithConstructor) {
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
-  auto* init = create<ast::TypeConstructorExpression>(&vec, std::move(vals));
+  auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
 
   EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
 
   ast::Variable v("var", ast::StorageClass::kOutput, &f32);
-  v.set_constructor(std::move(init));
+  v.set_constructor(init);
   td.RegisterVariableForTesting(&v);
 
   EXPECT_TRUE(b.GenerateGlobalVariable(&v)) << b.error();
@@ -139,12 +139,12 @@ TEST_F(BuilderTest, GlobalVar_Const) {
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
-  auto* init = create<ast::TypeConstructorExpression>(&vec, std::move(vals));
+  auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
 
   EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
 
   ast::Variable v("var", ast::StorageClass::kOutput, &f32);
-  v.set_constructor(std::move(init));
+  v.set_constructor(init);
   v.set_is_const(true);
   td.RegisterVariableForTesting(&v);
 
@@ -172,12 +172,12 @@ TEST_F(BuilderTest, GlobalVar_Complex_Constructor) {
       create<ast::FloatLiteral>(&f32, 2.0f)));
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.0f)));
-  auto* init = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* init = create<ast::TypeConstructorExpression>(&vec3, vals);
 
   EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
 
   ast::Variable v("var", ast::StorageClass::kOutput, &f32);
-  v.set_constructor(std::move(init));
+  v.set_constructor(init);
   v.set_is_const(true);
   td.RegisterVariableForTesting(&v);
 
@@ -198,23 +198,25 @@ TEST_F(BuilderTest, GlobalVar_Complex_ConstructorWithExtract) {
   ast::type::VectorType vec3(&f32, 3);
   ast::type::VectorType vec2(&f32, 2);
 
-  ast::ExpressionList vals;
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 1.0f)));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 2.0f)));
-  auto* first = create<ast::TypeConstructorExpression>(&vec2, std::move(vals));
+  auto* first = create<ast::TypeConstructorExpression>(
+      &vec2, ast::ExpressionList{
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 1.0f)),
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 2.0f)),
+             });
 
-  vals.push_back(std::move(first));
-  vals.push_back(create<ast::ScalarConstructorExpression>(
-      create<ast::FloatLiteral>(&f32, 3.0f)));
-
-  auto* init = create<ast::TypeConstructorExpression>(&vec3, std::move(vals));
+  auto* init = create<ast::TypeConstructorExpression>(
+      &vec3, ast::ExpressionList{
+                 first,
+                 create<ast::ScalarConstructorExpression>(
+                     create<ast::FloatLiteral>(&f32, 3.0f)),
+             });
 
   EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
 
   ast::Variable v("var", ast::StorageClass::kOutput, &f32);
-  v.set_constructor(std::move(init));
+  v.set_constructor(init);
   v.set_is_const(true);
   td.RegisterVariableForTesting(&v);
 
@@ -243,8 +245,8 @@ TEST_F(BuilderTest, GlobalVar_WithLocation) {
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::LocationDecoration>(5, Source{}));
 
-  ast::DecoratedVariable dv(std::move(v));
-  dv.set_decorations(std::move(decos));
+  ast::DecoratedVariable dv(v);
+  dv.set_decorations(decos);
 
   EXPECT_TRUE(b.GenerateGlobalVariable(&dv)) << b.error();
   EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %1 "tint_766172"
@@ -265,8 +267,8 @@ TEST_F(BuilderTest, GlobalVar_WithBindingAndSet) {
   decos.push_back(create<ast::BindingDecoration>(2, Source{}));
   decos.push_back(create<ast::SetDecoration>(3, Source{}));
 
-  ast::DecoratedVariable dv(std::move(v));
-  dv.set_decorations(std::move(decos));
+  ast::DecoratedVariable dv(v);
+  dv.set_decorations(decos);
 
   EXPECT_TRUE(b.GenerateGlobalVariable(&dv)) << b.error();
   EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %1 "tint_766172"
@@ -288,8 +290,8 @@ TEST_F(BuilderTest, GlobalVar_WithBuiltin) {
   decos.push_back(
       create<ast::BuiltinDecoration>(ast::Builtin::kPosition, Source{}));
 
-  ast::DecoratedVariable dv(std::move(v));
-  dv.set_decorations(std::move(decos));
+  ast::DecoratedVariable dv(v);
+  dv.set_decorations(decos);
 
   EXPECT_TRUE(b.GenerateGlobalVariable(&dv)) << b.error();
   EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %1 "tint_766172"
@@ -311,7 +313,7 @@ TEST_F(BuilderTest, GlobalVar_ConstantId_Bool) {
 
   ast::DecoratedVariable v(
       create<ast::Variable>("var", ast::StorageClass::kNone, &bool_type));
-  v.set_decorations(std::move(decos));
+  v.set_decorations(decos);
   v.set_constructor(create<ast::ScalarConstructorExpression>(
       create<ast::BoolLiteral>(&bool_type, true)));
 
@@ -335,7 +337,7 @@ TEST_F(BuilderTest, GlobalVar_ConstantId_Bool_NoConstructor) {
 
   ast::DecoratedVariable v(
       create<ast::Variable>("var", ast::StorageClass::kNone, &bool_type));
-  v.set_decorations(std::move(decos));
+  v.set_decorations(decos);
 
   EXPECT_TRUE(b.GenerateGlobalVariable(&v)) << b.error();
   EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %1 "tint_766172"
@@ -357,7 +359,7 @@ TEST_F(BuilderTest, GlobalVar_ConstantId_Scalar) {
 
   ast::DecoratedVariable v(
       create<ast::Variable>("var", ast::StorageClass::kNone, &f32));
-  v.set_decorations(std::move(decos));
+  v.set_decorations(decos);
   v.set_constructor(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 2.0)));
 
@@ -381,7 +383,7 @@ TEST_F(BuilderTest, GlobalVar_ConstantId_Scalar_F32_NoConstructor) {
 
   ast::DecoratedVariable v(
       create<ast::Variable>("var", ast::StorageClass::kNone, &f32));
-  v.set_decorations(std::move(decos));
+  v.set_decorations(decos);
 
   EXPECT_TRUE(b.GenerateGlobalVariable(&v)) << b.error();
   EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %1 "tint_766172"
@@ -403,7 +405,7 @@ TEST_F(BuilderTest, GlobalVar_ConstantId_Scalar_I32_NoConstructor) {
 
   ast::DecoratedVariable v(
       create<ast::Variable>("var", ast::StorageClass::kNone, &i32));
-  v.set_decorations(std::move(decos));
+  v.set_decorations(decos);
 
   EXPECT_TRUE(b.GenerateGlobalVariable(&v)) << b.error();
   EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %1 "tint_766172"
@@ -425,7 +427,7 @@ TEST_F(BuilderTest, GlobalVar_ConstantId_Scalar_U32_NoConstructor) {
 
   ast::DecoratedVariable v(
       create<ast::Variable>("var", ast::StorageClass::kNone, &u32));
-  v.set_decorations(std::move(decos));
+  v.set_decorations(decos);
 
   EXPECT_TRUE(b.GenerateGlobalVariable(&v)) << b.error();
   EXPECT_EQ(DumpInstructions(b.debug()), R"(OpName %1 "tint_766172"
@@ -483,10 +485,10 @@ TEST_F(BuilderTest, GlobalVar_DeclReadOnly) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(decos)));
-  members.push_back(create<ast::StructMember>("b", &i32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("a", &i32, decos));
+  members.push_back(create<ast::StructMember>("b", &i32, decos));
 
-  ast::type::StructType A("A", create<ast::Struct>(std::move(members)));
+  ast::type::StructType A("A", create<ast::Struct>(members));
   ast::type::AccessControlType ac{ast::AccessControl::kReadOnly, &A};
 
   ast::Variable var("b", ast::StorageClass::kStorageBuffer, &ac);
@@ -519,9 +521,9 @@ TEST_F(BuilderTest, GlobalVar_TypeAliasDeclReadOnly) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("a", &i32, decos));
 
-  ast::type::StructType A("A", create<ast::Struct>(std::move(members)));
+  ast::type::StructType A("A", create<ast::Struct>(members));
   ast::type::AliasType B("B", &A);
   ast::type::AccessControlType ac{ast::AccessControl::kReadOnly, &B};
 
@@ -553,9 +555,9 @@ TEST_F(BuilderTest, GlobalVar_TypeAliasAssignReadOnly) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("a", &i32, decos));
 
-  ast::type::StructType A("A", create<ast::Struct>(std::move(members)));
+  ast::type::StructType A("A", create<ast::Struct>(members));
   ast::type::AccessControlType ac{ast::AccessControl::kReadOnly, &A};
   ast::type::AliasType B("B", &ac);
 
@@ -587,9 +589,9 @@ TEST_F(BuilderTest, GlobalVar_TwoVarDeclReadOnly) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &i32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("a", &i32, decos));
 
-  ast::type::StructType A("A", create<ast::Struct>(std::move(members)));
+  ast::type::StructType A("A", create<ast::Struct>(members));
   ast::type::AccessControlType read{ast::AccessControl::kReadOnly, &A};
   ast::type::AccessControlType rw{ast::AccessControl::kReadWrite, &A};
 
diff --git a/src/writer/spirv/builder_ident_expression_test.cc b/src/writer/spirv/builder_ident_expression_test.cc
index 056a44e8c2..40cd860ecd 100644
--- a/src/writer/spirv/builder_ident_expression_test.cc
+++ b/src/writer/spirv/builder_ident_expression_test.cc
@@ -50,12 +50,12 @@ TEST_F(BuilderTest, IdentifierExpression_GlobalConst) {
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
-  auto* init = create<ast::TypeConstructorExpression>(&vec, std::move(vals));
+  auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
 
   EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
 
   ast::Variable v("var", ast::StorageClass::kOutput, &f32);
-  v.set_constructor(std::move(init));
+  v.set_constructor(init);
   v.set_is_const(true);
 
   td.RegisterVariableForTesting(&v);
@@ -109,12 +109,12 @@ TEST_F(BuilderTest, IdentifierExpression_FunctionConst) {
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
-  auto* init = create<ast::TypeConstructorExpression>(&vec, std::move(vals));
+  auto* init = create<ast::TypeConstructorExpression>(&vec, vals);
 
   EXPECT_TRUE(td.DetermineResultType(init)) << td.error();
 
   ast::Variable v("var", ast::StorageClass::kOutput, &f32);
-  v.set_constructor(std::move(init));
+  v.set_constructor(init);
   v.set_is_const(true);
   td.RegisterVariableForTesting(&v);
 
@@ -168,8 +168,7 @@ TEST_F(BuilderTest, IdentifierExpression_Load) {
   auto* lhs = create<ast::IdentifierExpression>("var");
   auto* rhs = create<ast::IdentifierExpression>("var");
 
-  ast::BinaryExpression expr(ast::BinaryOp::kAdd, std::move(lhs),
-                             std::move(rhs));
+  ast::BinaryExpression expr(ast::BinaryOp::kAdd, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -202,8 +201,7 @@ TEST_F(BuilderTest, IdentifierExpression_NoLoadConst) {
   auto* lhs = create<ast::IdentifierExpression>("var");
   auto* rhs = create<ast::IdentifierExpression>("var");
 
-  ast::BinaryExpression expr(ast::BinaryOp::kAdd, std::move(lhs),
-                             std::move(rhs));
+  ast::BinaryExpression expr(ast::BinaryOp::kAdd, lhs, rhs);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
diff --git a/src/writer/spirv/builder_if_test.cc b/src/writer/spirv/builder_if_test.cc
index 75f56f09ec..e2303ca102 100644
--- a/src/writer/spirv/builder_if_test.cc
+++ b/src/writer/spirv/builder_if_test.cc
@@ -49,7 +49,7 @@ TEST_F(BuilderTest, If_Empty) {
   auto* cond = create<ast::ScalarConstructorExpression>(
       create<ast::BoolLiteral>(&bool_type, true));
 
-  ast::IfStatement expr(std::move(cond), create<ast::BlockStatement>());
+  ast::IfStatement expr(cond, create<ast::BlockStatement>());
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -86,7 +86,7 @@ TEST_F(BuilderTest, If_WithStatements) {
   auto* cond = create<ast::ScalarConstructorExpression>(
       create<ast::BoolLiteral>(&bool_type, true));
 
-  ast::IfStatement expr(std::move(cond), std::move(body));
+  ast::IfStatement expr(cond, body);
 
   td.RegisterVariableForTesting(var);
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
@@ -137,13 +137,13 @@ TEST_F(BuilderTest, If_WithElse) {
                                            create<ast::SintLiteral>(&i32, 3))));
 
   ast::ElseStatementList else_stmts;
-  else_stmts.push_back(create<ast::ElseStatement>(std::move(else_body)));
+  else_stmts.push_back(create<ast::ElseStatement>(else_body));
 
   auto* cond = create<ast::ScalarConstructorExpression>(
       create<ast::BoolLiteral>(&bool_type, true));
 
-  ast::IfStatement expr(std::move(cond), std::move(body));
-  expr.set_else_statements(std::move(else_stmts));
+  ast::IfStatement expr(cond, body);
+  expr.set_else_statements(else_stmts);
 
   td.RegisterVariableForTesting(var);
 
@@ -202,14 +202,13 @@ TEST_F(BuilderTest, If_WithElseIf) {
       create<ast::BoolLiteral>(&bool_type, true));
 
   ast::ElseStatementList else_stmts;
-  else_stmts.push_back(
-      create<ast::ElseStatement>(std::move(else_cond), std::move(else_body)));
+  else_stmts.push_back(create<ast::ElseStatement>(else_cond, else_body));
 
   auto* cond = create<ast::ScalarConstructorExpression>(
       create<ast::BoolLiteral>(&bool_type, true));
 
-  ast::IfStatement expr(std::move(cond), std::move(body));
-  expr.set_else_statements(std::move(else_stmts));
+  ast::IfStatement expr(cond, body);
+  expr.set_else_statements(else_stmts);
 
   td.RegisterVariableForTesting(var);
 
@@ -288,17 +287,17 @@ TEST_F(BuilderTest, If_WithMultiple) {
       create<ast::BoolLiteral>(&bool_type, false));
 
   ast::ElseStatementList else_stmts;
-  else_stmts.push_back(create<ast::ElseStatement>(std::move(elseif_1_cond),
-                                                  std::move(elseif_1_body)));
-  else_stmts.push_back(create<ast::ElseStatement>(std::move(elseif_2_cond),
-                                                  std::move(elseif_2_body)));
-  else_stmts.push_back(create<ast::ElseStatement>(std::move(else_body)));
+  else_stmts.push_back(
+      create<ast::ElseStatement>(elseif_1_cond, elseif_1_body));
+  else_stmts.push_back(
+      create<ast::ElseStatement>(elseif_2_cond, elseif_2_body));
+  else_stmts.push_back(create<ast::ElseStatement>(else_body));
 
   auto* cond = create<ast::ScalarConstructorExpression>(
       create<ast::BoolLiteral>(&bool_type, true));
 
-  ast::IfStatement expr(std::move(cond), std::move(body));
-  expr.set_else_statements(std::move(else_stmts));
+  ast::IfStatement expr(cond, body);
+  expr.set_else_statements(else_stmts);
 
   td.RegisterVariableForTesting(var);
 
@@ -362,12 +361,12 @@ TEST_F(BuilderTest, If_WithBreak) {
   auto* if_body = create<ast::BlockStatement>();
   if_body->append(create<ast::BreakStatement>());
 
-  auto* if_stmt = create<ast::IfStatement>(std::move(cond), std::move(if_body));
+  auto* if_stmt = create<ast::IfStatement>(cond, if_body);
 
   auto* loop_body = create<ast::BlockStatement>();
-  loop_body->append(std::move(if_stmt));
+  loop_body->append(if_stmt);
 
-  ast::LoopStatement expr(std::move(loop_body), create<ast::BlockStatement>());
+  ast::LoopStatement expr(loop_body, create<ast::BlockStatement>());
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -410,16 +409,15 @@ TEST_F(BuilderTest, If_WithElseBreak) {
   else_body->append(create<ast::BreakStatement>());
 
   ast::ElseStatementList else_stmts;
-  else_stmts.push_back(create<ast::ElseStatement>(std::move(else_body)));
+  else_stmts.push_back(create<ast::ElseStatement>(else_body));
 
-  auto* if_stmt =
-      create<ast::IfStatement>(std::move(cond), create<ast::BlockStatement>());
-  if_stmt->set_else_statements(std::move(else_stmts));
+  auto* if_stmt = create<ast::IfStatement>(cond, create<ast::BlockStatement>());
+  if_stmt->set_else_statements(else_stmts);
 
   auto* loop_body = create<ast::BlockStatement>();
-  loop_body->append(std::move(if_stmt));
+  loop_body->append(if_stmt);
 
-  ast::LoopStatement expr(std::move(loop_body), create<ast::BlockStatement>());
+  ast::LoopStatement expr(loop_body, create<ast::BlockStatement>());
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -462,12 +460,12 @@ TEST_F(BuilderTest, If_WithContinue) {
   auto* if_body = create<ast::BlockStatement>();
   if_body->append(create<ast::ContinueStatement>());
 
-  auto* if_stmt = create<ast::IfStatement>(std::move(cond), std::move(if_body));
+  auto* if_stmt = create<ast::IfStatement>(cond, if_body);
 
   auto* loop_body = create<ast::BlockStatement>();
-  loop_body->append(std::move(if_stmt));
+  loop_body->append(if_stmt);
 
-  ast::LoopStatement expr(std::move(loop_body), create<ast::BlockStatement>());
+  ast::LoopStatement expr(loop_body, create<ast::BlockStatement>());
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -510,16 +508,15 @@ TEST_F(BuilderTest, If_WithElseContinue) {
   else_body->append(create<ast::ContinueStatement>());
 
   ast::ElseStatementList else_stmts;
-  else_stmts.push_back(create<ast::ElseStatement>(std::move(else_body)));
+  else_stmts.push_back(create<ast::ElseStatement>(else_body));
 
-  auto* if_stmt =
-      create<ast::IfStatement>(std::move(cond), create<ast::BlockStatement>());
-  if_stmt->set_else_statements(std::move(else_stmts));
+  auto* if_stmt = create<ast::IfStatement>(cond, create<ast::BlockStatement>());
+  if_stmt->set_else_statements(else_stmts);
 
   auto* loop_body = create<ast::BlockStatement>();
-  loop_body->append(std::move(if_stmt));
+  loop_body->append(if_stmt);
 
-  ast::LoopStatement expr(std::move(loop_body), create<ast::BlockStatement>());
+  ast::LoopStatement expr(loop_body, create<ast::BlockStatement>());
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -560,7 +557,7 @@ TEST_F(BuilderTest, If_WithReturn) {
   auto* if_body = create<ast::BlockStatement>();
   if_body->append(create<ast::ReturnStatement>());
 
-  ast::IfStatement expr(std::move(cond), std::move(if_body));
+  ast::IfStatement expr(cond, if_body);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -590,9 +587,9 @@ TEST_F(BuilderTest, If_WithReturnValue) {
       create<ast::BoolLiteral>(&bool_type, false));
 
   auto* if_body = create<ast::BlockStatement>();
-  if_body->append(create<ast::ReturnStatement>(std::move(cond2)));
+  if_body->append(create<ast::ReturnStatement>(cond2));
 
-  ast::IfStatement expr(std::move(cond), std::move(if_body));
+  ast::IfStatement expr(cond, if_body);
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
diff --git a/src/writer/spirv/builder_intrinsic_test.cc b/src/writer/spirv/builder_intrinsic_test.cc
index c8fff571e1..695bd85a45 100644
--- a/src/writer/spirv/builder_intrinsic_test.cc
+++ b/src/writer/spirv/builder_intrinsic_test.cc
@@ -1706,10 +1706,10 @@ TEST_F(IntrinsicBuilderTest, Call_ArrayLength) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &ary, std::move(decos)));
+  members.push_back(create<ast::StructMember>("a", &ary, decos));
 
-  auto* s = create<ast::Struct>(std::move(members));
-  ast::type::StructType s_type("my_struct", std::move(s));
+  auto* s = create<ast::Struct>(members);
+  ast::type::StructType s_type("my_struct", s);
 
   auto* var = make_var("b", ast::StorageClass::kPrivate, &s_type);
 
@@ -1746,11 +1746,11 @@ TEST_F(IntrinsicBuilderTest, Call_ArrayLength_OtherMembersInStruct) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("z", f32(), std::move(decos)));
-  members.push_back(create<ast::StructMember>("a", &ary, std::move(decos)));
+  members.push_back(create<ast::StructMember>("z", f32(), decos));
+  members.push_back(create<ast::StructMember>("a", &ary, decos));
 
-  auto* s = create<ast::Struct>(std::move(members));
-  ast::type::StructType s_type("my_struct", std::move(s));
+  auto* s = create<ast::Struct>(members);
+  ast::type::StructType s_type("my_struct", s);
 
   auto* var = make_var("b", ast::StorageClass::kPrivate, &s_type);
   auto expr = call_expr("arrayLength", create<ast::MemberAccessorExpression>(
@@ -1788,11 +1788,11 @@ TEST_F(IntrinsicBuilderTest, DISABLED_Call_ArrayLength_Ptr) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("z", f32(), std::move(decos)));
-  members.push_back(create<ast::StructMember>("a", &ary, std::move(decos)));
+  members.push_back(create<ast::StructMember>("z", f32(), decos));
+  members.push_back(create<ast::StructMember>("a", &ary, decos));
 
-  auto* s = create<ast::Struct>(std::move(members));
-  ast::type::StructType s_type("my_struct", std::move(s));
+  auto* s = create<ast::Struct>(members);
+  ast::type::StructType s_type("my_struct", s);
 
   auto* var = make_var("b", ast::StorageClass::kPrivate, &s_type);
 
diff --git a/src/writer/spirv/builder_loop_test.cc b/src/writer/spirv/builder_loop_test.cc
index 319163ea9b..ecfe48ab9b 100644
--- a/src/writer/spirv/builder_loop_test.cc
+++ b/src/writer/spirv/builder_loop_test.cc
@@ -74,7 +74,7 @@ TEST_F(BuilderTest, Loop_WithoutContinuing) {
                                        create<ast::ScalarConstructorExpression>(
                                            create<ast::SintLiteral>(&i32, 2))));
 
-  ast::LoopStatement expr(std::move(body), create<ast::BlockStatement>());
+  ast::LoopStatement expr(body, create<ast::BlockStatement>());
 
   td.RegisterVariableForTesting(var);
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
@@ -125,7 +125,7 @@ TEST_F(BuilderTest, Loop_WithContinuing) {
       create<ast::AssignmentStatement>(create<ast::IdentifierExpression>("v"),
                                        create<ast::ScalarConstructorExpression>(
                                            create<ast::SintLiteral>(&i32, 3))));
-  ast::LoopStatement expr(std::move(body), std::move(continuing));
+  ast::LoopStatement expr(body, continuing);
 
   td.RegisterVariableForTesting(var);
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
@@ -163,7 +163,7 @@ TEST_F(BuilderTest, Loop_WithContinue) {
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::ContinueStatement>());
 
-  ast::LoopStatement expr(std::move(body), create<ast::BlockStatement>());
+  ast::LoopStatement expr(body, create<ast::BlockStatement>());
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -190,7 +190,7 @@ TEST_F(BuilderTest, Loop_WithBreak) {
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::BreakStatement>());
 
-  ast::LoopStatement expr(std::move(body), create<ast::BlockStatement>());
+  ast::LoopStatement expr(body, create<ast::BlockStatement>());
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
diff --git a/src/writer/spirv/builder_return_test.cc b/src/writer/spirv/builder_return_test.cc
index 5c0dbb350e..738a12a3f0 100644
--- a/src/writer/spirv/builder_return_test.cc
+++ b/src/writer/spirv/builder_return_test.cc
@@ -58,9 +58,9 @@ TEST_F(BuilderTest, Return_WithValue) {
   vals.push_back(create<ast::ScalarConstructorExpression>(
       create<ast::FloatLiteral>(&f32, 3.0f)));
 
-  auto* val = create<ast::TypeConstructorExpression>(&vec, std::move(vals));
+  auto* val = create<ast::TypeConstructorExpression>(&vec, vals);
 
-  ast::ReturnStatement ret(std::move(val));
+  ast::ReturnStatement ret(val);
 
   EXPECT_TRUE(td.DetermineResultType(&ret)) << td.error();
 
diff --git a/src/writer/spirv/builder_switch_test.cc b/src/writer/spirv/builder_switch_test.cc
index 1dfb4669b4..2738b28189 100644
--- a/src/writer/spirv/builder_switch_test.cc
+++ b/src/writer/spirv/builder_switch_test.cc
@@ -48,7 +48,7 @@ TEST_F(BuilderTest, Switch_Empty) {
   auto* cond = create<ast::ScalarConstructorExpression>(
       create<ast::SintLiteral>(&i32, 1));
 
-  ast::SwitchStatement expr(std::move(cond), ast::CaseStatementList{});
+  ast::SwitchStatement expr(cond, ast::CaseStatementList{});
 
   ASSERT_TRUE(td.DetermineResultType(&expr)) << td.error();
 
@@ -99,13 +99,10 @@ TEST_F(BuilderTest, Switch_WithCase) {
   selector_2.push_back(create<ast::SintLiteral>(&i32, 2));
 
   ast::CaseStatementList cases;
-  cases.push_back(create<ast::CaseStatement>(std::move(selector_1),
-                                             std::move(case_1_body)));
-  cases.push_back(create<ast::CaseStatement>(std::move(selector_2),
-                                             std::move(case_2_body)));
+  cases.push_back(create<ast::CaseStatement>(selector_1, case_1_body));
+  cases.push_back(create<ast::CaseStatement>(selector_2, case_2_body));
 
-  ast::SwitchStatement expr(create<ast::IdentifierExpression>("a"),
-                            std::move(cases));
+  ast::SwitchStatement expr(create<ast::IdentifierExpression>("a"), cases);
 
   td.RegisterVariableForTesting(v);
   td.RegisterVariableForTesting(a);
@@ -166,10 +163,9 @@ TEST_F(BuilderTest, Switch_WithDefault) {
                                            create<ast::SintLiteral>(&i32, 1))));
 
   ast::CaseStatementList cases;
-  cases.push_back(create<ast::CaseStatement>(std::move(default_body)));
+  cases.push_back(create<ast::CaseStatement>(default_body));
 
-  ast::SwitchStatement expr(create<ast::IdentifierExpression>("a"),
-                            std::move(cases));
+  ast::SwitchStatement expr(create<ast::IdentifierExpression>("a"), cases);
 
   td.RegisterVariableForTesting(v);
   td.RegisterVariableForTesting(a);
@@ -247,14 +243,11 @@ TEST_F(BuilderTest, Switch_WithCaseAndDefault) {
   selector_2.push_back(create<ast::SintLiteral>(&i32, 3));
 
   ast::CaseStatementList cases;
-  cases.push_back(create<ast::CaseStatement>(std::move(selector_1),
-                                             std::move(case_1_body)));
-  cases.push_back(create<ast::CaseStatement>(std::move(selector_2),
-                                             std::move(case_2_body)));
-  cases.push_back(create<ast::CaseStatement>(std::move(default_body)));
+  cases.push_back(create<ast::CaseStatement>(selector_1, case_1_body));
+  cases.push_back(create<ast::CaseStatement>(selector_2, case_2_body));
+  cases.push_back(create<ast::CaseStatement>(default_body));
 
-  ast::SwitchStatement expr(create<ast::IdentifierExpression>("a"),
-                            std::move(cases));
+  ast::SwitchStatement expr(create<ast::IdentifierExpression>("a"), cases);
 
   td.RegisterVariableForTesting(v);
   td.RegisterVariableForTesting(a);
@@ -341,14 +334,11 @@ TEST_F(BuilderTest, Switch_CaseWithFallthrough) {
   selector_2.push_back(create<ast::SintLiteral>(&i32, 2));
 
   ast::CaseStatementList cases;
-  cases.push_back(create<ast::CaseStatement>(std::move(selector_1),
-                                             std::move(case_1_body)));
-  cases.push_back(create<ast::CaseStatement>(std::move(selector_2),
-                                             std::move(case_2_body)));
-  cases.push_back(create<ast::CaseStatement>(std::move(default_body)));
+  cases.push_back(create<ast::CaseStatement>(selector_1, case_1_body));
+  cases.push_back(create<ast::CaseStatement>(selector_2, case_2_body));
+  cases.push_back(create<ast::CaseStatement>(default_body));
 
-  ast::SwitchStatement expr(create<ast::IdentifierExpression>("a"),
-                            std::move(cases));
+  ast::SwitchStatement expr(create<ast::IdentifierExpression>("a"), cases);
 
   td.RegisterVariableForTesting(v);
   td.RegisterVariableForTesting(a);
@@ -416,11 +406,9 @@ TEST_F(BuilderTest, Switch_CaseFallthroughLastStatement) {
   selector_1.push_back(create<ast::SintLiteral>(&i32, 1));
 
   ast::CaseStatementList cases;
-  cases.push_back(create<ast::CaseStatement>(std::move(selector_1),
-                                             std::move(case_1_body)));
+  cases.push_back(create<ast::CaseStatement>(selector_1, case_1_body));
 
-  ast::SwitchStatement expr(create<ast::IdentifierExpression>("a"),
-                            std::move(cases));
+  ast::SwitchStatement expr(create<ast::IdentifierExpression>("a"), cases);
 
   td.RegisterVariableForTesting(v);
   td.RegisterVariableForTesting(a);
@@ -458,7 +446,7 @@ TEST_F(BuilderTest, Switch_WithNestedBreak) {
   case_1_body->append(
       create<ast::IfStatement>(create<ast::ScalarConstructorExpression>(
                                    create<ast::BoolLiteral>(&bool_type, true)),
-                               std::move(if_body)));
+                               if_body));
 
   case_1_body->append(
       create<ast::AssignmentStatement>(create<ast::IdentifierExpression>("v"),
@@ -469,11 +457,9 @@ TEST_F(BuilderTest, Switch_WithNestedBreak) {
   selector_1.push_back(create<ast::SintLiteral>(&i32, 1));
 
   ast::CaseStatementList cases;
-  cases.push_back(create<ast::CaseStatement>(std::move(selector_1),
-                                             std::move(case_1_body)));
+  cases.push_back(create<ast::CaseStatement>(selector_1, case_1_body));
 
-  ast::SwitchStatement expr(create<ast::IdentifierExpression>("a"),
-                            std::move(cases));
+  ast::SwitchStatement expr(create<ast::IdentifierExpression>("a"), cases);
 
   td.RegisterVariableForTesting(v);
   td.RegisterVariableForTesting(a);
diff --git a/src/writer/spirv/builder_type_test.cc b/src/writer/spirv/builder_type_test.cc
index 44ab42939c..01109a488a 100644
--- a/src/writer/spirv/builder_type_test.cc
+++ b/src/writer/spirv/builder_type_test.cc
@@ -127,7 +127,7 @@ TEST_F(BuilderTest_Type, GenerateArray_WithStride) {
   decos.push_back(create<ast::StrideDecoration>(16u, Source{}));
 
   ast::type::ArrayType ary(&i32, 4);
-  ary.set_decorations(std::move(decos));
+  ary.set_decorations(decos);
 
   auto id = b.GenerateTypeIfNeeded(&ary);
   ASSERT_FALSE(b.has_error()) << b.error();
@@ -280,7 +280,7 @@ TEST_F(BuilderTest_Type, ReturnsGeneratedPtr) {
 
 TEST_F(BuilderTest_Type, GenerateStruct_Empty) {
   auto* s = create<ast::Struct>();
-  ast::type::StructType s_type("S", std::move(s));
+  ast::type::StructType s_type("S", s);
 
   auto id = b.GenerateTypeIfNeeded(&s_type);
   ASSERT_FALSE(b.has_error()) << b.error();
@@ -298,10 +298,10 @@ TEST_F(BuilderTest_Type, GenerateStruct) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &f32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("a", &f32, decos));
 
-  auto* s = create<ast::Struct>(std::move(members));
-  ast::type::StructType s_type("my_struct", std::move(s));
+  auto* s = create<ast::Struct>(members);
+  ast::type::StructType s_type("my_struct", s);
 
   auto id = b.GenerateTypeIfNeeded(&s_type);
   ASSERT_FALSE(b.has_error()) << b.error();
@@ -320,13 +320,13 @@ TEST_F(BuilderTest_Type, GenerateStruct_Decorated) {
 
   ast::StructMemberDecorationList decos;
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &f32, std::move(decos)));
+  members.push_back(create<ast::StructMember>("a", &f32, decos));
 
   ast::StructDecorationList struct_decos;
   struct_decos.push_back(create<ast::StructBlockDecoration>(Source{}));
 
-  auto* s = create<ast::Struct>(std::move(struct_decos), std::move(members));
-  ast::type::StructType s_type("my_struct", std::move(s));
+  auto* s = create<ast::Struct>(struct_decos, members);
+  ast::type::StructType s_type("my_struct", s);
 
   auto id = b.GenerateTypeIfNeeded(&s_type);
   ASSERT_FALSE(b.has_error()) << b.error();
@@ -351,11 +351,11 @@ TEST_F(BuilderTest_Type, GenerateStruct_DecoratedMembers) {
   b_decos.push_back(create<ast::StructMemberOffsetDecoration>(8, Source{}));
 
   ast::StructMemberList members;
-  members.push_back(create<ast::StructMember>("a", &f32, std::move(a_decos)));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_decos)));
+  members.push_back(create<ast::StructMember>("a", &f32, a_decos));
+  members.push_back(create<ast::StructMember>("b", &f32, b_decos));
 
-  auto* s = create<ast::Struct>(std::move(members));
-  ast::type::StructType s_type("S", std::move(s));
+  auto* s = create<ast::Struct>(members);
+  ast::type::StructType s_type("S", s);
 
   auto id = b.GenerateTypeIfNeeded(&s_type);
   ASSERT_FALSE(b.has_error()) << b.error();
@@ -384,15 +384,12 @@ TEST_F(BuilderTest_Type, GenerateStruct_NonLayout_Matrix) {
   ast::StructMemberDecorationList empty_b;
   ast::StructMemberDecorationList empty_c;
   ast::StructMemberList members;
-  members.push_back(
-      create<ast::StructMember>("a", &glsl_mat2x2, std::move(empty_a)));
-  members.push_back(
-      create<ast::StructMember>("b", &glsl_mat2x3, std::move(empty_b)));
-  members.push_back(
-      create<ast::StructMember>("c", &glsl_mat4x4, std::move(empty_c)));
+  members.push_back(create<ast::StructMember>("a", &glsl_mat2x2, empty_a));
+  members.push_back(create<ast::StructMember>("b", &glsl_mat2x3, empty_b));
+  members.push_back(create<ast::StructMember>("c", &glsl_mat4x4, empty_c));
 
-  auto* s = create<ast::Struct>(std::move(members));
-  ast::type::StructType s_type("S", std::move(s));
+  auto* s = create<ast::Struct>(members);
+  ast::type::StructType s_type("S", s);
 
   auto id = b.GenerateTypeIfNeeded(&s_type);
   ASSERT_FALSE(b.has_error()) << b.error();
@@ -430,15 +427,12 @@ TEST_F(BuilderTest_Type, GenerateStruct_DecoratedMembers_LayoutMatrix) {
   c_decos.push_back(create<ast::StructMemberOffsetDecoration>(48, Source{}));
 
   ast::StructMemberList members;
-  members.push_back(
-      create<ast::StructMember>("a", &glsl_mat2x2, std::move(a_decos)));
-  members.push_back(
-      create<ast::StructMember>("b", &glsl_mat2x3, std::move(b_decos)));
-  members.push_back(
-      create<ast::StructMember>("c", &glsl_mat4x4, std::move(c_decos)));
+  members.push_back(create<ast::StructMember>("a", &glsl_mat2x2, a_decos));
+  members.push_back(create<ast::StructMember>("b", &glsl_mat2x3, b_decos));
+  members.push_back(create<ast::StructMember>("c", &glsl_mat4x4, c_decos));
 
-  auto* s = create<ast::Struct>(std::move(members));
-  ast::type::StructType s_type("S", std::move(s));
+  auto* s = create<ast::Struct>(members);
+  ast::type::StructType s_type("S", s);
 
   auto id = b.GenerateTypeIfNeeded(&s_type);
   ASSERT_FALSE(b.has_error()) << b.error();
@@ -494,15 +488,12 @@ TEST_F(BuilderTest_Type, GenerateStruct_DecoratedMembers_LayoutArraysOfMatrix) {
   c_decos.push_back(create<ast::StructMemberOffsetDecoration>(48, Source{}));
 
   ast::StructMemberList members;
-  members.push_back(
-      create<ast::StructMember>("a", &glsl_mat2x2, std::move(a_decos)));
-  members.push_back(
-      create<ast::StructMember>("b", &glsl_mat2x3, std::move(b_decos)));
-  members.push_back(
-      create<ast::StructMember>("c", &glsl_mat4x4, std::move(c_decos)));
+  members.push_back(create<ast::StructMember>("a", &glsl_mat2x2, a_decos));
+  members.push_back(create<ast::StructMember>("b", &glsl_mat2x3, b_decos));
+  members.push_back(create<ast::StructMember>("c", &glsl_mat4x4, c_decos));
 
-  auto* s = create<ast::Struct>(std::move(members));
-  ast::type::StructType s_type("S", std::move(s));
+  auto* s = create<ast::Struct>(members);
+  ast::type::StructType s_type("S", s);
 
   auto id = b.GenerateTypeIfNeeded(&s_type);
   ASSERT_FALSE(b.has_error()) << b.error();
diff --git a/src/writer/wgsl/generator_impl_alias_type_test.cc b/src/writer/wgsl/generator_impl_alias_type_test.cc
index 73f0a720f5..ce1249ed1f 100644
--- a/src/writer/wgsl/generator_impl_alias_type_test.cc
+++ b/src/writer/wgsl/generator_impl_alias_type_test.cc
@@ -49,12 +49,12 @@ TEST_F(WgslGeneratorImplTest, EmitConstructedType_Struct) {
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &i32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &i32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("A", std::move(str));
+  ast::type::StructType s("A", str);
   ast::type::AliasType alias("B", &s);
 
   ASSERT_TRUE(gen.EmitConstructedType(&s)) << gen.error();
@@ -78,12 +78,12 @@ TEST_F(WgslGeneratorImplTest, EmitAliasType_ToStruct) {
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &i32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &i32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("A", std::move(str));
+  ast::type::StructType s("A", str);
   ast::type::AliasType alias("B", &s);
 
   ASSERT_TRUE(gen.EmitConstructedType(&alias)) << gen.error();
diff --git a/src/writer/wgsl/generator_impl_array_accessor_test.cc b/src/writer/wgsl/generator_impl_array_accessor_test.cc
index 3b8fa384cb..e1876120f1 100644
--- a/src/writer/wgsl/generator_impl_array_accessor_test.cc
+++ b/src/writer/wgsl/generator_impl_array_accessor_test.cc
@@ -33,10 +33,10 @@ using WgslGeneratorImplTest = TestHelper;
 TEST_F(WgslGeneratorImplTest, EmitExpression_ArrayAccessor) {
   ast::type::I32Type i32;
   auto* lit = create<ast::SintLiteral>(&i32, 5);
-  auto* idx = create<ast::ScalarConstructorExpression>(std::move(lit));
+  auto* idx = create<ast::ScalarConstructorExpression>(lit);
   auto* ary = create<ast::IdentifierExpression>("ary");
 
-  ast::ArrayAccessorExpression expr(std::move(ary), std::move(idx));
+  ast::ArrayAccessorExpression expr(ary, idx);
 
   ASSERT_TRUE(gen.EmitExpression(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "ary[5]");
@@ -46,7 +46,7 @@ TEST_F(WgslGeneratorImplTest, EmitArrayAccessor) {
   auto* ary = create<ast::IdentifierExpression>("ary");
   auto* idx = create<ast::IdentifierExpression>("idx");
 
-  ast::ArrayAccessorExpression expr(std::move(ary), std::move(idx));
+  ast::ArrayAccessorExpression expr(ary, idx);
 
   ASSERT_TRUE(gen.EmitArrayAccessor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "ary[idx]");
diff --git a/src/writer/wgsl/generator_impl_assign_test.cc b/src/writer/wgsl/generator_impl_assign_test.cc
index 36e8650a64..9679c6b508 100644
--- a/src/writer/wgsl/generator_impl_assign_test.cc
+++ b/src/writer/wgsl/generator_impl_assign_test.cc
@@ -31,7 +31,7 @@ using WgslGeneratorImplTest = TestHelper;
 TEST_F(WgslGeneratorImplTest, Emit_Assign) {
   auto* lhs = create<ast::IdentifierExpression>("lhs");
   auto* rhs = create<ast::IdentifierExpression>("rhs");
-  ast::AssignmentStatement assign(std::move(lhs), std::move(rhs));
+  ast::AssignmentStatement assign(lhs, rhs);
 
   gen.increment_indent();
 
diff --git a/src/writer/wgsl/generator_impl_binary_test.cc b/src/writer/wgsl/generator_impl_binary_test.cc
index d210f735da..825668f9a3 100644
--- a/src/writer/wgsl/generator_impl_binary_test.cc
+++ b/src/writer/wgsl/generator_impl_binary_test.cc
@@ -40,7 +40,7 @@ TEST_P(WgslBinaryTest, Emit) {
   auto* left = create<ast::IdentifierExpression>("left");
   auto* right = create<ast::IdentifierExpression>("right");
 
-  ast::BinaryExpression expr(params.op, std::move(left), std::move(right));
+  ast::BinaryExpression expr(params.op, left, right);
 
   ASSERT_TRUE(gen.EmitExpression(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), params.result);
diff --git a/src/writer/wgsl/generator_impl_bitcast_test.cc b/src/writer/wgsl/generator_impl_bitcast_test.cc
index c6452aec81..83ba9e68cc 100644
--- a/src/writer/wgsl/generator_impl_bitcast_test.cc
+++ b/src/writer/wgsl/generator_impl_bitcast_test.cc
@@ -31,7 +31,7 @@ using WgslGeneratorImplTest = TestHelper;
 TEST_F(WgslGeneratorImplTest, EmitExpression_Bitcast) {
   ast::type::F32Type f32;
   auto* id = create<ast::IdentifierExpression>("id");
-  ast::BitcastExpression bitcast(&f32, std::move(id));
+  ast::BitcastExpression bitcast(&f32, id);
 
   ASSERT_TRUE(gen.EmitExpression(&bitcast)) << gen.error();
   EXPECT_EQ(gen.result(), "bitcast<f32>(id)");
diff --git a/src/writer/wgsl/generator_impl_call_test.cc b/src/writer/wgsl/generator_impl_call_test.cc
index aa0c7cb116..8afc062b27 100644
--- a/src/writer/wgsl/generator_impl_call_test.cc
+++ b/src/writer/wgsl/generator_impl_call_test.cc
@@ -30,7 +30,7 @@ using WgslGeneratorImplTest = TestHelper;
 
 TEST_F(WgslGeneratorImplTest, EmitExpression_Call_WithoutParams) {
   auto* id = create<ast::IdentifierExpression>("my_func");
-  ast::CallExpression call(std::move(id), {});
+  ast::CallExpression call(id, {});
 
   ASSERT_TRUE(gen.EmitExpression(&call)) << gen.error();
   EXPECT_EQ(gen.result(), "my_func()");
@@ -41,7 +41,7 @@ TEST_F(WgslGeneratorImplTest, EmitExpression_Call_WithParams) {
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("param1"));
   params.push_back(create<ast::IdentifierExpression>("param2"));
-  ast::CallExpression call(std::move(id), std::move(params));
+  ast::CallExpression call(id, params);
 
   ASSERT_TRUE(gen.EmitExpression(&call)) << gen.error();
   EXPECT_EQ(gen.result(), "my_func(param1, param2)");
@@ -53,8 +53,7 @@ TEST_F(WgslGeneratorImplTest, EmitStatement_Call) {
   params.push_back(create<ast::IdentifierExpression>("param1"));
   params.push_back(create<ast::IdentifierExpression>("param2"));
 
-  ast::CallStatement call(
-      create<ast::CallExpression>(std::move(id), std::move(params)));
+  ast::CallStatement call(create<ast::CallExpression>(id, params));
 
   gen.increment_indent();
   ASSERT_TRUE(gen.EmitStatement(&call)) << gen.error();
diff --git a/src/writer/wgsl/generator_impl_case_test.cc b/src/writer/wgsl/generator_impl_case_test.cc
index 1246465a93..5b5fc05517 100644
--- a/src/writer/wgsl/generator_impl_case_test.cc
+++ b/src/writer/wgsl/generator_impl_case_test.cc
@@ -38,7 +38,7 @@ TEST_F(WgslGeneratorImplTest, Emit_Case) {
 
   ast::CaseSelectorList lit;
   lit.push_back(create<ast::SintLiteral>(&i32, 5));
-  ast::CaseStatement c(std::move(lit), std::move(body));
+  ast::CaseStatement c(lit, body);
 
   gen.increment_indent();
 
@@ -58,7 +58,7 @@ TEST_F(WgslGeneratorImplTest, Emit_Case_MultipleSelectors) {
   ast::CaseSelectorList lit;
   lit.push_back(create<ast::SintLiteral>(&i32, 5));
   lit.push_back(create<ast::SintLiteral>(&i32, 6));
-  ast::CaseStatement c(std::move(lit), std::move(body));
+  ast::CaseStatement c(lit, body);
 
   gen.increment_indent();
 
@@ -72,7 +72,7 @@ TEST_F(WgslGeneratorImplTest, Emit_Case_MultipleSelectors) {
 TEST_F(WgslGeneratorImplTest, Emit_Case_Default) {
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::BreakStatement>());
-  ast::CaseStatement c(std::move(body));
+  ast::CaseStatement c(body);
 
   gen.increment_indent();
 
diff --git a/src/writer/wgsl/generator_impl_cast_test.cc b/src/writer/wgsl/generator_impl_cast_test.cc
index 5d64f4666f..c2a86dc248 100644
--- a/src/writer/wgsl/generator_impl_cast_test.cc
+++ b/src/writer/wgsl/generator_impl_cast_test.cc
@@ -34,7 +34,7 @@ TEST_F(WgslGeneratorImplTest, EmitExpression_Cast) {
   ast::ExpressionList params;
   params.push_back(create<ast::IdentifierExpression>("id"));
 
-  ast::TypeConstructorExpression cast(&f32, std::move(params));
+  ast::TypeConstructorExpression cast(&f32, params);
 
   ASSERT_TRUE(gen.EmitExpression(&cast)) << gen.error();
   EXPECT_EQ(gen.result(), "f32(id)");
diff --git a/src/writer/wgsl/generator_impl_constructor_test.cc b/src/writer/wgsl/generator_impl_constructor_test.cc
index 70e78e39b8..53ac451bf8 100644
--- a/src/writer/wgsl/generator_impl_constructor_test.cc
+++ b/src/writer/wgsl/generator_impl_constructor_test.cc
@@ -38,7 +38,7 @@ using WgslGeneratorImplTest = TestHelper;
 TEST_F(WgslGeneratorImplTest, EmitConstructor_Bool) {
   ast::type::BoolType bool_type;
   auto* lit = create<ast::BoolLiteral>(&bool_type, false);
-  ast::ScalarConstructorExpression expr(std::move(lit));
+  ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "false");
@@ -47,7 +47,7 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Bool) {
 TEST_F(WgslGeneratorImplTest, EmitConstructor_Int) {
   ast::type::I32Type i32;
   auto* lit = create<ast::SintLiteral>(&i32, -12345);
-  ast::ScalarConstructorExpression expr(std::move(lit));
+  ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "-12345");
@@ -56,7 +56,7 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Int) {
 TEST_F(WgslGeneratorImplTest, EmitConstructor_UInt) {
   ast::type::U32Type u32;
   auto* lit = create<ast::UintLiteral>(&u32, 56779);
-  ast::ScalarConstructorExpression expr(std::move(lit));
+  ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "56779u");
@@ -67,7 +67,7 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Float) {
   // Use a number close to 1<<30 but whose decimal representation ends in 0.
   auto* lit =
       create<ast::FloatLiteral>(&f32, static_cast<float>((1 << 30) - 4));
-  ast::ScalarConstructorExpression expr(std::move(lit));
+  ast::ScalarConstructorExpression expr(lit);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "1.07374182e+09");
@@ -78,9 +78,9 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Float) {
 
   auto* lit = create<ast::FloatLiteral>(&f32, -1.2e-5);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
-  ast::TypeConstructorExpression expr(&f32, std::move(values));
+  ast::TypeConstructorExpression expr(&f32, values);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "f32(-1.20000004e-05)");
@@ -91,9 +91,9 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Bool) {
 
   auto* lit = create<ast::BoolLiteral>(&b, true);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
-  ast::TypeConstructorExpression expr(&b, std::move(values));
+  ast::TypeConstructorExpression expr(&b, values);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "bool(true)");
@@ -104,9 +104,9 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Int) {
 
   auto* lit = create<ast::SintLiteral>(&i32, -12345);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
-  ast::TypeConstructorExpression expr(&i32, std::move(values));
+  ast::TypeConstructorExpression expr(&i32, values);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "i32(-12345)");
@@ -117,9 +117,9 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Uint) {
 
   auto* lit = create<ast::UintLiteral>(&u32, 12345);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit));
 
-  ast::TypeConstructorExpression expr(&u32, std::move(values));
+  ast::TypeConstructorExpression expr(&u32, values);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "u32(12345u)");
@@ -133,11 +133,11 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Vec) {
   auto* lit2 = create<ast::FloatLiteral>(&f32, 2.f);
   auto* lit3 = create<ast::FloatLiteral>(&f32, 3.f);
   ast::ExpressionList values;
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit1)));
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit2)));
-  values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit3)));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit1));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit2));
+  values.push_back(create<ast::ScalarConstructorExpression>(lit3));
 
-  ast::TypeConstructorExpression expr(&vec, std::move(values));
+  ast::TypeConstructorExpression expr(&vec, values);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "vec3<f32>(1.00000000, 2.00000000, 3.00000000)");
@@ -158,14 +158,13 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Mat) {
         create<ast::FloatLiteral>(&f32, static_cast<float>(2 + (i * 2)));
 
     ast::ExpressionList values;
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit1)));
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit2)));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit1));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit2));
 
-    mat_values.push_back(
-        create<ast::TypeConstructorExpression>(&vec, std::move(values)));
+    mat_values.push_back(create<ast::TypeConstructorExpression>(&vec, values));
   }
 
-  ast::TypeConstructorExpression expr(&mat, std::move(mat_values));
+  ast::TypeConstructorExpression expr(&mat, mat_values);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(),
@@ -190,15 +189,14 @@ TEST_F(WgslGeneratorImplTest, EmitConstructor_Type_Array) {
         create<ast::FloatLiteral>(&f32, static_cast<float>(3 + (i * 3)));
 
     ast::ExpressionList values;
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit1)));
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit2)));
-    values.push_back(create<ast::ScalarConstructorExpression>(std::move(lit3)));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit1));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit2));
+    values.push_back(create<ast::ScalarConstructorExpression>(lit3));
 
-    ary_values.push_back(
-        create<ast::TypeConstructorExpression>(&vec, std::move(values)));
+    ary_values.push_back(create<ast::TypeConstructorExpression>(&vec, values));
   }
 
-  ast::TypeConstructorExpression expr(&ary, std::move(ary_values));
+  ast::TypeConstructorExpression expr(&ary, ary_values);
 
   ASSERT_TRUE(gen.EmitConstructor(&expr)) << gen.error();
   EXPECT_EQ(gen.result(),
diff --git a/src/writer/wgsl/generator_impl_function_test.cc b/src/writer/wgsl/generator_impl_function_test.cc
index c05e2df0c5..6923099992 100644
--- a/src/writer/wgsl/generator_impl_function_test.cc
+++ b/src/writer/wgsl/generator_impl_function_test.cc
@@ -48,7 +48,7 @@ TEST_F(WgslGeneratorImplTest, Emit_Function) {
   body->append(create<ast::ReturnStatement>());
 
   ast::type::VoidType void_type;
-  ast::Function func("my_func", {}, &void_type, std::move(body));
+  ast::Function func("my_func", {}, &void_type, body);
 
   gen.increment_indent();
 
@@ -72,7 +72,7 @@ TEST_F(WgslGeneratorImplTest, Emit_Function_WithParams) {
   params.push_back(create<ast::Variable>("b", ast::StorageClass::kNone, &i32));
 
   ast::type::VoidType void_type;
-  ast::Function func("my_func", std::move(params), &void_type, std::move(body));
+  ast::Function func("my_func", params, &void_type, body);
 
   gen.increment_indent();
 
@@ -90,7 +90,7 @@ TEST_F(WgslGeneratorImplTest, Emit_Function_WithDecoration_WorkgroupSize) {
   body->append(create<ast::ReturnStatement>());
 
   ast::type::VoidType void_type;
-  ast::Function func("my_func", {}, &void_type, std::move(body));
+  ast::Function func("my_func", {}, &void_type, body);
   func.add_decoration(create<ast::WorkgroupDecoration>(2u, 4u, 6u, Source{}));
 
   gen.increment_indent();
@@ -110,7 +110,7 @@ TEST_F(WgslGeneratorImplTest, Emit_Function_WithDecoration_Stage) {
   body->append(create<ast::ReturnStatement>());
 
   ast::type::VoidType void_type;
-  ast::Function func("my_func", {}, &void_type, std::move(body));
+  ast::Function func("my_func", {}, &void_type, body);
   func.add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
 
@@ -131,7 +131,7 @@ TEST_F(WgslGeneratorImplTest, Emit_Function_WithDecoration_Multiple) {
   body->append(create<ast::ReturnStatement>());
 
   ast::type::VoidType void_type;
-  ast::Function func("my_func", {}, &void_type, std::move(body));
+  ast::Function func("my_func", {}, &void_type, body);
   func.add_decoration(
       create<ast::StageDecoration>(ast::PipelineStage::kFragment, Source{}));
   func.add_decoration(create<ast::WorkgroupDecoration>(2u, 4u, 6u, Source{}));
@@ -172,14 +172,14 @@ TEST_F(WgslGeneratorImplTest,
   ast::StructMemberList members;
   ast::StructMemberDecorationList a_deco;
   a_deco.push_back(create<ast::StructMemberOffsetDecoration>(0, Source{}));
-  members.push_back(create<ast::StructMember>("d", &f32, std::move(a_deco)));
+  members.push_back(create<ast::StructMember>("d", &f32, a_deco));
 
   ast::StructDecorationList s_decos;
   s_decos.push_back(create<ast::StructBlockDecoration>(Source{}));
 
-  auto* str = create<ast::Struct>(std::move(s_decos), std::move(members));
+  auto* str = create<ast::Struct>(s_decos, members);
 
-  ast::type::StructType s("Data", std::move(str));
+  ast::type::StructType s("Data", str);
   ast::type::AccessControlType ac(ast::AccessControl::kReadWrite, &s);
 
   auto* data_var = create<ast::DecoratedVariable>(
@@ -188,12 +188,12 @@ TEST_F(WgslGeneratorImplTest,
   ast::VariableDecorationList decos;
   decos.push_back(create<ast::BindingDecoration>(0, Source{}));
   decos.push_back(create<ast::SetDecoration>(0, Source{}));
-  data_var->set_decorations(std::move(decos));
+  data_var->set_decorations(decos);
 
   mod.AddConstructedType(&s);
 
   td.RegisterVariableForTesting(data_var);
-  mod.AddGlobalVariable(std::move(data_var));
+  mod.AddGlobalVariable(data_var);
 
   {
     ast::VariableList params;
@@ -203,15 +203,14 @@ TEST_F(WgslGeneratorImplTest,
         create<ast::IdentifierExpression>("d")));
 
     auto* body = create<ast::BlockStatement>();
-    body->append(create<ast::VariableDeclStatement>(std::move(var)));
+    body->append(create<ast::VariableDeclStatement>(var));
     body->append(create<ast::ReturnStatement>());
 
-    auto* func = create<ast::Function>("a", std::move(params), &void_type,
-                                       std::move(body));
+    auto* func = create<ast::Function>("a", params, &void_type, body);
     func->add_decoration(
         create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
 
-    mod.AddFunction(std::move(func));
+    mod.AddFunction(func);
   }
 
   {
@@ -222,15 +221,14 @@ TEST_F(WgslGeneratorImplTest,
         create<ast::IdentifierExpression>("d")));
 
     auto* body = create<ast::BlockStatement>();
-    body->append(create<ast::VariableDeclStatement>(std::move(var)));
+    body->append(create<ast::VariableDeclStatement>(var));
     body->append(create<ast::ReturnStatement>());
 
-    auto* func = create<ast::Function>("b", std::move(params), &void_type,
-                                       std::move(body));
+    auto* func = create<ast::Function>("b", params, &void_type, body);
     func->add_decoration(
         create<ast::StageDecoration>(ast::PipelineStage::kCompute, Source{}));
 
-    mod.AddFunction(std::move(func));
+    mod.AddFunction(func);
   }
 
   ASSERT_TRUE(td.Determine()) << td.error();
diff --git a/src/writer/wgsl/generator_impl_if_test.cc b/src/writer/wgsl/generator_impl_if_test.cc
index 3094210ace..b0c68b826f 100644
--- a/src/writer/wgsl/generator_impl_if_test.cc
+++ b/src/writer/wgsl/generator_impl_if_test.cc
@@ -32,7 +32,7 @@ TEST_F(WgslGeneratorImplTest, Emit_If) {
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::DiscardStatement>());
 
-  ast::IfStatement i(std::move(cond), std::move(body));
+  ast::IfStatement i(cond, body);
 
   gen.increment_indent();
 
@@ -49,15 +49,14 @@ TEST_F(WgslGeneratorImplTest, Emit_IfWithElseIf) {
   else_body->append(create<ast::DiscardStatement>());
 
   ast::ElseStatementList elses;
-  elses.push_back(
-      create<ast::ElseStatement>(std::move(else_cond), std::move(else_body)));
+  elses.push_back(create<ast::ElseStatement>(else_cond, else_body));
 
   auto* cond = create<ast::IdentifierExpression>("cond");
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::DiscardStatement>());
 
-  ast::IfStatement i(std::move(cond), std::move(body));
-  i.set_else_statements(std::move(elses));
+  ast::IfStatement i(cond, body);
+  i.set_else_statements(elses);
 
   gen.increment_indent();
 
@@ -75,14 +74,14 @@ TEST_F(WgslGeneratorImplTest, Emit_IfWithElse) {
   else_body->append(create<ast::DiscardStatement>());
 
   ast::ElseStatementList elses;
-  elses.push_back(create<ast::ElseStatement>(std::move(else_body)));
+  elses.push_back(create<ast::ElseStatement>(else_body));
 
   auto* cond = create<ast::IdentifierExpression>("cond");
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::DiscardStatement>());
 
-  ast::IfStatement i(std::move(cond), std::move(body));
-  i.set_else_statements(std::move(elses));
+  ast::IfStatement i(cond, body);
+  i.set_else_statements(elses);
 
   gen.increment_indent();
 
@@ -105,16 +104,15 @@ TEST_F(WgslGeneratorImplTest, Emit_IfWithMultiple) {
   else_body_2->append(create<ast::DiscardStatement>());
 
   ast::ElseStatementList elses;
-  elses.push_back(
-      create<ast::ElseStatement>(std::move(else_cond), std::move(else_body)));
-  elses.push_back(create<ast::ElseStatement>(std::move(else_body_2)));
+  elses.push_back(create<ast::ElseStatement>(else_cond, else_body));
+  elses.push_back(create<ast::ElseStatement>(else_body_2));
 
   auto* cond = create<ast::IdentifierExpression>("cond");
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::DiscardStatement>());
 
-  ast::IfStatement i(std::move(cond), std::move(body));
-  i.set_else_statements(std::move(elses));
+  ast::IfStatement i(cond, body);
+  i.set_else_statements(elses);
 
   gen.increment_indent();
 
diff --git a/src/writer/wgsl/generator_impl_loop_test.cc b/src/writer/wgsl/generator_impl_loop_test.cc
index 2bcc6149e8..41c399d9dc 100644
--- a/src/writer/wgsl/generator_impl_loop_test.cc
+++ b/src/writer/wgsl/generator_impl_loop_test.cc
@@ -30,7 +30,7 @@ using WgslGeneratorImplTest = TestHelper;
 TEST_F(WgslGeneratorImplTest, Emit_Loop) {
   auto* body = create<ast::BlockStatement>();
   body->append(create<ast::DiscardStatement>());
-  ast::LoopStatement l(std::move(body), {});
+  ast::LoopStatement l(body, {});
 
   gen.increment_indent();
 
@@ -48,7 +48,7 @@ TEST_F(WgslGeneratorImplTest, Emit_LoopWithContinuing) {
   auto* continuing = create<ast::BlockStatement>();
   continuing->append(create<ast::DiscardStatement>());
 
-  ast::LoopStatement l(std::move(body), std::move(continuing));
+  ast::LoopStatement l(body, continuing);
 
   gen.increment_indent();
 
diff --git a/src/writer/wgsl/generator_impl_member_accessor_test.cc b/src/writer/wgsl/generator_impl_member_accessor_test.cc
index c939a028ec..8ff995ea3a 100644
--- a/src/writer/wgsl/generator_impl_member_accessor_test.cc
+++ b/src/writer/wgsl/generator_impl_member_accessor_test.cc
@@ -31,7 +31,7 @@ TEST_F(WgslGeneratorImplTest, EmitExpression_MemberAccessor) {
   auto* str = create<ast::IdentifierExpression>("str");
   auto* mem = create<ast::IdentifierExpression>("mem");
 
-  ast::MemberAccessorExpression expr(std::move(str), std::move(mem));
+  ast::MemberAccessorExpression expr(str, mem);
 
   ASSERT_TRUE(gen.EmitExpression(&expr)) << gen.error();
   EXPECT_EQ(gen.result(), "str.mem");
diff --git a/src/writer/wgsl/generator_impl_return_test.cc b/src/writer/wgsl/generator_impl_return_test.cc
index 91f9e8bb51..51b1e78cba 100644
--- a/src/writer/wgsl/generator_impl_return_test.cc
+++ b/src/writer/wgsl/generator_impl_return_test.cc
@@ -39,7 +39,7 @@ TEST_F(WgslGeneratorImplTest, Emit_Return) {
 
 TEST_F(WgslGeneratorImplTest, Emit_ReturnWithValue) {
   auto* expr = create<ast::IdentifierExpression>("expr");
-  ast::ReturnStatement r(std::move(expr));
+  ast::ReturnStatement r(expr);
 
   gen.increment_indent();
 
diff --git a/src/writer/wgsl/generator_impl_switch_test.cc b/src/writer/wgsl/generator_impl_switch_test.cc
index 1072d675ab..06904eee03 100644
--- a/src/writer/wgsl/generator_impl_switch_test.cc
+++ b/src/writer/wgsl/generator_impl_switch_test.cc
@@ -34,7 +34,7 @@ using WgslGeneratorImplTest = TestHelper;
 TEST_F(WgslGeneratorImplTest, Emit_Switch) {
   auto* def_body = create<ast::BlockStatement>();
   def_body->append(create<ast::BreakStatement>());
-  auto* def = create<ast::CaseStatement>(std::move(def_body));
+  auto* def = create<ast::CaseStatement>(def_body);
 
   ast::type::I32Type i32;
   ast::CaseSelectorList case_val;
@@ -43,15 +43,14 @@ TEST_F(WgslGeneratorImplTest, Emit_Switch) {
   auto* case_body = create<ast::BlockStatement>();
   case_body->append(create<ast::BreakStatement>());
 
-  auto* case_stmt =
-      create<ast::CaseStatement>(std::move(case_val), std::move(case_body));
+  auto* case_stmt = create<ast::CaseStatement>(case_val, case_body);
 
   ast::CaseStatementList body;
-  body.push_back(std::move(case_stmt));
-  body.push_back(std::move(def));
+  body.push_back(case_stmt);
+  body.push_back(def);
 
   auto* cond = create<ast::IdentifierExpression>("cond");
-  ast::SwitchStatement s(std::move(cond), std::move(body));
+  ast::SwitchStatement s(cond, body);
 
   gen.increment_indent();
 
diff --git a/src/writer/wgsl/generator_impl_type_test.cc b/src/writer/wgsl/generator_impl_type_test.cc
index 48fbf4fa19..6cc49aaffc 100644
--- a/src/writer/wgsl/generator_impl_type_test.cc
+++ b/src/writer/wgsl/generator_impl_type_test.cc
@@ -67,7 +67,7 @@ TEST_F(WgslGeneratorImplTest, EmitType_Array_Decoration) {
   decos.push_back(create<ast::StrideDecoration>(16u, Source{}));
 
   ast::type::ArrayType a(&b, 4);
-  a.set_decorations(std::move(decos));
+  a.set_decorations(decos);
 
   ASSERT_TRUE(gen.EmitType(&a)) << gen.error();
   EXPECT_EQ(gen.result(), "[[stride(16)]] array<bool, 4>");
@@ -80,7 +80,7 @@ TEST_F(WgslGeneratorImplTest, EmitType_Array_MultipleDecorations) {
   decos.push_back(create<ast::StrideDecoration>(32u, Source{}));
 
   ast::type::ArrayType a(&b, 4);
-  a.set_decorations(std::move(decos));
+  a.set_decorations(decos);
 
   ASSERT_TRUE(gen.EmitType(&a)) << gen.error();
   EXPECT_EQ(gen.result(), "[[stride(16)]] [[stride(32)]] array<bool, 4>");
@@ -141,12 +141,12 @@ TEST_F(WgslGeneratorImplTest, EmitType_Struct) {
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("S", std::move(str));
+  ast::type::StructType s("S", str);
 
   ASSERT_TRUE(gen.EmitType(&s)) << gen.error();
   EXPECT_EQ(gen.result(), "S");
@@ -162,12 +162,12 @@ TEST_F(WgslGeneratorImplTest, EmitType_StructDecl) {
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   auto* str = create<ast::Struct>();
-  str->set_members(std::move(members));
+  str->set_members(members);
 
-  ast::type::StructType s("S", std::move(str));
+  ast::type::StructType s("S", str);
 
   ASSERT_TRUE(gen.EmitStructType(&s)) << gen.error();
   EXPECT_EQ(gen.result(), R"(struct S {
@@ -188,14 +188,14 @@ TEST_F(WgslGeneratorImplTest, EmitType_Struct_WithDecoration) {
 
   ast::StructMemberDecorationList b_deco;
   b_deco.push_back(create<ast::StructMemberOffsetDecoration>(4, Source{}));
-  members.push_back(create<ast::StructMember>("b", &f32, std::move(b_deco)));
+  members.push_back(create<ast::StructMember>("b", &f32, b_deco));
 
   ast::StructDecorationList decos;
   decos.push_back(create<ast::StructBlockDecoration>(Source{}));
 
-  auto* str = create<ast::Struct>(std::move(decos), std::move(members));
+  auto* str = create<ast::Struct>(decos, members);
 
-  ast::type::StructType s("S", std::move(str));
+  ast::type::StructType s("S", str);
 
   ASSERT_TRUE(gen.EmitStructType(&s)) << gen.error();
   EXPECT_EQ(gen.result(), R"([[block]]
diff --git a/src/writer/wgsl/generator_impl_unary_op_test.cc b/src/writer/wgsl/generator_impl_unary_op_test.cc
index bebe74bdc5..518be49088 100644
--- a/src/writer/wgsl/generator_impl_unary_op_test.cc
+++ b/src/writer/wgsl/generator_impl_unary_op_test.cc
@@ -39,7 +39,7 @@ TEST_P(WgslUnaryOpTest, Emit) {
   auto params = GetParam();
 
   auto* expr = create<ast::IdentifierExpression>("expr");
-  ast::UnaryOpExpression op(params.op, std::move(expr));
+  ast::UnaryOpExpression op(params.op, expr);
 
   ASSERT_TRUE(gen.EmitExpression(&op)) << gen.error();
   EXPECT_EQ(gen.result(), std::string(params.name) + "(expr)");
diff --git a/src/writer/wgsl/generator_impl_variable_decl_statement_test.cc b/src/writer/wgsl/generator_impl_variable_decl_statement_test.cc
index 1db4355280..7d19a1ed2e 100644
--- a/src/writer/wgsl/generator_impl_variable_decl_statement_test.cc
+++ b/src/writer/wgsl/generator_impl_variable_decl_statement_test.cc
@@ -34,7 +34,7 @@ TEST_F(WgslGeneratorImplTest, Emit_VariableDeclStatement) {
   ast::type::F32Type f32;
   auto* var = create<ast::Variable>("a", ast::StorageClass::kNone, &f32);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
 
   gen.increment_indent();
 
@@ -49,7 +49,7 @@ TEST_F(WgslGeneratorImplTest, Emit_VariableDeclStatement_Function) {
   ast::type::F32Type f32;
   auto* var = create<ast::Variable>("a", ast::StorageClass::kFunction, &f32);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
 
   gen.increment_indent();
 
@@ -61,7 +61,7 @@ TEST_F(WgslGeneratorImplTest, Emit_VariableDeclStatement_Private) {
   ast::type::F32Type f32;
   auto* var = create<ast::Variable>("a", ast::StorageClass::kPrivate, &f32);
 
-  ast::VariableDeclStatement stmt(std::move(var));
+  ast::VariableDeclStatement stmt(var);
 
   gen.increment_indent();
 
diff --git a/src/writer/wgsl/generator_impl_variable_test.cc b/src/writer/wgsl/generator_impl_variable_test.cc
index 529bf05e4d..23b9adf7ca 100644
--- a/src/writer/wgsl/generator_impl_variable_test.cc
+++ b/src/writer/wgsl/generator_impl_variable_test.cc
@@ -60,7 +60,7 @@ TEST_F(WgslGeneratorImplTest, EmitVariable_Decorated) {
   ast::DecoratedVariable dv;
   dv.set_name("a");
   dv.set_type(&f32);
-  dv.set_decorations(std::move(decos));
+  dv.set_decorations(decos);
 
   ASSERT_TRUE(gen.EmitVariable(&dv)) << gen.error();
   EXPECT_EQ(gen.result(), R"([[location(2)]] var a : f32;
@@ -81,7 +81,7 @@ TEST_F(WgslGeneratorImplTest, EmitVariable_Decorated_Multiple) {
   ast::DecoratedVariable dv;
   dv.set_name("a");
   dv.set_type(&f32);
-  dv.set_decorations(std::move(decos));
+  dv.set_decorations(decos);
 
   ASSERT_TRUE(gen.EmitVariable(&dv)) << gen.error();
   EXPECT_EQ(
@@ -95,7 +95,7 @@ TEST_F(WgslGeneratorImplTest, EmitVariable_Constructor) {
 
   ast::type::F32Type f32;
   ast::Variable v("a", ast::StorageClass::kNone, &f32);
-  v.set_constructor(std::move(ident));
+  v.set_constructor(ident);
 
   ASSERT_TRUE(gen.EmitVariable(&v)) << gen.error();
   EXPECT_EQ(gen.result(), R"(var a : f32 = initializer;
@@ -107,7 +107,7 @@ TEST_F(WgslGeneratorImplTest, EmitVariable_Const) {
 
   ast::type::F32Type f32;
   ast::Variable v("a", ast::StorageClass::kNone, &f32);
-  v.set_constructor(std::move(ident));
+  v.set_constructor(ident);
   v.set_is_const(true);
 
   ASSERT_TRUE(gen.EmitVariable(&v)) << gen.error();