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[ir] Remove Jump.

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This CL removes the Jump instruction. This didn't add much value over
the branch instruction and was confusing as to which to use when.

Bug: tint:1718
Change-Id: I69253aa7baf39b00f698e4e8f9608465f6019dcd
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/134221
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Reviewed-by: James Price <jrprice@google.com>
This commit is contained in:
dan sinclair 2023-05-24 18:45:04 +00:00 committed by Dawn LUCI CQ
parent 24c5ed6b0a
commit e9a4adeff9
15 changed files with 95 additions and 201 deletions
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2
src/tint/BUILD.gn
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@ -1242,8 +1242,6 @@ if (tint_build_ir) {
"ir/if.h", "ir/if.h",
"ir/instruction.cc", "ir/instruction.cc",
"ir/instruction.h", "ir/instruction.h",
"ir/jump.cc",
"ir/jump.h",
"ir/load.cc", "ir/load.cc",
"ir/load.h", "ir/load.h",
"ir/loop.cc", "ir/loop.cc",

2
src/tint/CMakeLists.txt
View File

@ -752,8 +752,6 @@ if(${TINT_BUILD_IR})
ir/if.h ir/if.h
ir/instruction.cc ir/instruction.cc
ir/instruction.h ir/instruction.h
ir/jump.cc
ir/jump.h
ir/load.cc ir/load.cc
ir/load.h ir/load.h
ir/loop.cc ir/loop.cc

4
src/tint/ir/builder.cc
View File

@ -221,10 +221,6 @@ ir::Branch* Builder::Branch(FlowNode* to, utils::VectorRef<Value*> args) {
return ir.values.Create<ir::Branch>(to, args); return ir.values.Create<ir::Branch>(to, args);
} }
ir::Jump* Builder::Jump(FlowNode* to, utils::VectorRef<Value*> args) {
return ir.values.Create<ir::Jump>(to, args);
}
ir::BlockParam* Builder::BlockParam(const type::Type* type) { ir::BlockParam* Builder::BlockParam(const type::Type* type) {
return ir.values.Create<ir::BlockParam>(type); return ir.values.Create<ir::BlockParam>(type);
} }

7
src/tint/ir/builder.h
View File

@ -30,7 +30,6 @@
#include "src/tint/ir/function_param.h" #include "src/tint/ir/function_param.h"
#include "src/tint/ir/function_terminator.h" #include "src/tint/ir/function_terminator.h"
#include "src/tint/ir/if.h" #include "src/tint/ir/if.h"
#include "src/tint/ir/jump.h"
#include "src/tint/ir/load.h" #include "src/tint/ir/load.h"
#include "src/tint/ir/loop.h" #include "src/tint/ir/loop.h"
#include "src/tint/ir/module.h" #include "src/tint/ir/module.h"
@ -405,12 +404,6 @@ class Builder {
/// @returns the instruction /// @returns the instruction
ir::Branch* Branch(FlowNode* to, utils::VectorRef<Value*> args = {}); ir::Branch* Branch(FlowNode* to, utils::VectorRef<Value*> args = {});
/// Creates a jump declaration
/// @param to the node being branched too
/// @param args the branch arguments
/// @returns the instruction
ir::Jump* Jump(FlowNode* to, utils::VectorRef<Value*> args = {});
/// Creates a new `BlockParam` /// Creates a new `BlockParam`
/// @param type the parameter type /// @param type the parameter type
/// @returns the value /// @returns the value

13
src/tint/ir/disassembler.cc
View File

@ -27,7 +27,6 @@
#include "src/tint/ir/discard.h" #include "src/tint/ir/discard.h"
#include "src/tint/ir/function_terminator.h" #include "src/tint/ir/function_terminator.h"
#include "src/tint/ir/if.h" #include "src/tint/ir/if.h"
#include "src/tint/ir/jump.h"
#include "src/tint/ir/load.h" #include "src/tint/ir/load.h"
#include "src/tint/ir/loop.h" #include "src/tint/ir/loop.h"
#include "src/tint/ir/root_terminator.h" #include "src/tint/ir/root_terminator.h"
@ -406,18 +405,8 @@ void Disassembler::EmitSwitch(const Switch* s) {
} }
void Disassembler::EmitBranch(const Branch* b) { void Disassembler::EmitBranch(const Branch* b) {
if (b->Is<Jump>()) {
out_ << "jmp ";
// Stuff the thing we're jumping too into the front of the walk list so it will be emitted
// next.
walk_list_.push_front(b->To());
} else {
out_ << "br ";
}
std::string suffix = ""; std::string suffix = "";
out_ << "%fn" << IdOf(b->To()); out_ << "br %fn" << IdOf(b->To());
if (b->To()->Is<FunctionTerminator>()) { if (b->To()->Is<FunctionTerminator>()) {
suffix = "return"; suffix = "return";
} else if (b->To()->Is<RootTerminator>()) { } else if (b->To()->Is<RootTerminator>()) {

22
src/tint/ir/from_program.cc
View File

@ -170,20 +170,6 @@ class Impl {
diagnostics_.add_error(tint::diag::System::IR, err, s); diagnostics_.add_error(tint::diag::System::IR, err, s);
} }
void JumpTo(FlowNode* node, utils::VectorRef<Value*> args = {}) {
TINT_ASSERT(IR, current_flow_block_);
TINT_ASSERT(IR, !current_flow_block_->HasBranchTarget());
current_flow_block_->Instructions().Push(builder_.Jump(node, args));
current_flow_block_ = nullptr;
}
void JumpToIfNeeded(FlowNode* node) {
if (!current_flow_block_ || current_flow_block_->HasBranchTarget()) {
return;
}
JumpTo(node);
}
void BranchTo(FlowNode* node, utils::VectorRef<Value*> args = {}) { void BranchTo(FlowNode* node, utils::VectorRef<Value*> args = {}) {
TINT_ASSERT(IR, current_flow_block_); TINT_ASSERT(IR, current_flow_block_);
TINT_ASSERT(IR, !current_flow_block_->HasBranchTarget()); TINT_ASSERT(IR, !current_flow_block_->HasBranchTarget());
@ -357,7 +343,7 @@ class Impl {
// If the branch target has already been set then a `return` was called. Only set in // If the branch target has already been set then a `return` was called. Only set in
// the case where `return` wasn't called. // the case where `return` wasn't called.
JumpToIfNeeded(current_function_->EndTarget()); BranchToIfNeeded(current_function_->EndTarget());
} }
TINT_ASSERT(IR, control_stack_.IsEmpty()); TINT_ASSERT(IR, control_stack_.IsEmpty());
@ -587,7 +573,7 @@ class Impl {
// The current block didn't `break`, `return` or `continue`, go to the continuing // The current block didn't `break`, `return` or `continue`, go to the continuing
// block. // block.
JumpToIfNeeded(loop_inst->Continuing()); BranchToIfNeeded(loop_inst->Continuing());
current_flow_block_ = loop_inst->Continuing(); current_flow_block_ = loop_inst->Continuing();
if (stmt->continuing) { if (stmt->continuing) {
@ -634,7 +620,7 @@ class Impl {
current_flow_block_ = if_inst->Merge(); current_flow_block_ = if_inst->Merge();
EmitBlock(stmt->body); EmitBlock(stmt->body);
JumpToIfNeeded(loop_inst->Continuing()); BranchToIfNeeded(loop_inst->Continuing());
} }
// The while loop always has a path to the Merge().target as the break statement comes // The while loop always has a path to the Merge().target as the break statement comes
// before anything inside the loop. // before anything inside the loop.
@ -678,7 +664,7 @@ class Impl {
} }
EmitBlock(stmt->body); EmitBlock(stmt->body);
JumpToIfNeeded(loop_inst->Continuing()); BranchToIfNeeded(loop_inst->Continuing());
if (stmt->continuing) { if (stmt->continuing) {
current_flow_block_ = loop_inst->Continuing(); current_flow_block_ = loop_inst->Continuing();

64
src/tint/ir/from_program_binary_test.cc
View File

@ -44,7 +44,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_Add) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:u32 = add %1, 4u %tint_symbol:u32 = add %1, 4u
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -71,7 +71,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_Increment) {
%2:u32 = load %v1 %2:u32 = load %v1
%3:u32 = add %2, 1u %3:u32 = add %2, 1u
store %v1, %3 store %v1, %3
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator
@ -98,7 +98,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_CompoundAdd) {
%2:u32 = load %v1 %2:u32 = load %v1
%3:u32 = add %2, 1u %3:u32 = add %2, 1u
store %v1, %3 store %v1, %3
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator
@ -123,7 +123,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_Subtract) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:u32 = sub %1, 4u %tint_symbol:u32 = sub %1, 4u
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -150,7 +150,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_Decrement) {
%2:i32 = load %v1 %2:i32 = load %v1
%3:i32 = sub %2, 1i %3:i32 = sub %2, 1i
store %v1, %3 store %v1, %3
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator
@ -177,7 +177,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_CompoundSubtract) {
%2:u32 = load %v1 %2:u32 = load %v1
%3:u32 = sub %2, 1u %3:u32 = sub %2, 1u
store %v1, %3 store %v1, %3
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator
@ -202,7 +202,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_Multiply) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:u32 = mul %1, 4u %tint_symbol:u32 = mul %1, 4u
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -229,7 +229,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_CompoundMultiply) {
%2:u32 = load %v1 %2:u32 = load %v1
%3:u32 = mul %2, 1u %3:u32 = mul %2, 1u
store %v1, %3 store %v1, %3
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator
@ -254,7 +254,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_Div) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:u32 = div %1, 4u %tint_symbol:u32 = div %1, 4u
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -281,7 +281,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_CompoundDiv) {
%2:u32 = load %v1 %2:u32 = load %v1
%3:u32 = div %2, 1u %3:u32 = div %2, 1u
store %v1, %3 store %v1, %3
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator
@ -306,7 +306,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_Modulo) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:u32 = mod %1, 4u %tint_symbol:u32 = mod %1, 4u
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -333,7 +333,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_CompoundModulo) {
%2:u32 = load %v1 %2:u32 = load %v1
%3:u32 = mod %2, 1u %3:u32 = mod %2, 1u
store %v1, %3 store %v1, %3
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator
@ -358,7 +358,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_And) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:u32 = and %1, 4u %tint_symbol:u32 = and %1, 4u
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -385,7 +385,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_CompoundAnd) {
%2:bool = load %v1 %2:bool = load %v1
%3:bool = and %2, false %3:bool = and %2, false
store %v1, %3 store %v1, %3
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator
@ -410,7 +410,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_Or) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:u32 = or %1, 4u %tint_symbol:u32 = or %1, 4u
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -437,7 +437,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_CompoundOr) {
%2:bool = load %v1 %2:bool = load %v1
%3:bool = or %2, false %3:bool = or %2, false
store %v1, %3 store %v1, %3
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator
@ -462,7 +462,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_Xor) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:u32 = xor %1, 4u %tint_symbol:u32 = xor %1, 4u
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -489,7 +489,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_CompoundXor) {
%2:u32 = load %v1 %2:u32 = load %v1
%3:u32 = xor %2, 1u %3:u32 = xor %2, 1u
store %v1, %3 store %v1, %3
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator
@ -537,7 +537,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_LogicalAnd) {
} }
%fn11 = block { %fn11 = block {
jmp %fn12 # return br %fn12 # return
} }
%fn12 = func_terminator %fn12 = func_terminator
@ -585,7 +585,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_LogicalOr) {
} }
%fn11 = block { %fn11 = block {
jmp %fn12 # return br %fn12 # return
} }
%fn12 = func_terminator %fn12 = func_terminator
@ -610,7 +610,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_Equal) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:bool = eq %1, 4u %tint_symbol:bool = eq %1, 4u
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -635,7 +635,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_NotEqual) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:bool = neq %1, 4u %tint_symbol:bool = neq %1, 4u
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -660,7 +660,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_LessThan) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:bool = lt %1, 4u %tint_symbol:bool = lt %1, 4u
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -685,7 +685,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_GreaterThan) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:bool = gt %1, 4u %tint_symbol:bool = gt %1, 4u
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -710,7 +710,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_LessThanEqual) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:bool = lte %1, 4u %tint_symbol:bool = lte %1, 4u
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -735,7 +735,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_GreaterThanEqual) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:bool = gte %1, 4u %tint_symbol:bool = gte %1, 4u
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -760,7 +760,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_ShiftLeft) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:u32 = shiftl %1, 4u %tint_symbol:u32 = shiftl %1, 4u
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -787,7 +787,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_CompoundShiftLeft) {
%2:u32 = load %v1 %2:u32 = load %v1
%3:u32 = shiftl %2, 1u %3:u32 = shiftl %2, 1u
store %v1, %3 store %v1, %3
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator
@ -812,7 +812,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_ShiftRight) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:u32 = shiftr %1, 4u %tint_symbol:u32 = shiftr %1, 4u
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -839,7 +839,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_CompoundShiftRight) {
%2:u32 = load %v1 %2:u32 = load %v1
%3:u32 = shiftr %2, 1u %3:u32 = shiftr %2, 1u
store %v1, %3 store %v1, %3
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator
@ -883,7 +883,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_Compound) {
} }
%fn8 = block (%tint_symbol:bool) { %fn8 = block (%tint_symbol:bool) {
jmp %fn9 # return br %fn9 # return
} }
%fn9 = func_terminator %fn9 = func_terminator
@ -908,7 +908,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Binary_Compound_WithConstEval) {
%fn4 = func test_function():void [@compute @workgroup_size(1, 1, 1)] -> %fn5 %fn4 = func test_function():void [@compute @workgroup_size(1, 1, 1)] -> %fn5
%fn5 = block { %fn5 = block {
%tint_symbol:bool = call my_func, false %tint_symbol:bool = call my_func, false
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator

12
src/tint/ir/from_program_call_test.cc
View File

@ -45,7 +45,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Bitcast) {
%fn5 = block { %fn5 = block {
%1:f32 = call my_func %1:f32 = call my_func
%tint_symbol:f32 = bitcast %1 %tint_symbol:f32 = bitcast %1
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -65,7 +65,7 @@ TEST_F(IR_BuilderImplTest, EmitStatement_Discard) {
EXPECT_EQ(Disassemble(m.Get()), R"(%fn1 = func test_function():void [@fragment] -> %fn2 EXPECT_EQ(Disassemble(m.Get()), R"(%fn1 = func test_function():void [@fragment] -> %fn2
%fn2 = block { %fn2 = block {
discard discard
jmp %fn3 # return br %fn3 # return
} }
%fn3 = func_terminator %fn3 = func_terminator
@ -82,14 +82,14 @@ TEST_F(IR_BuilderImplTest, EmitStatement_UserFunction) {
EXPECT_EQ(Disassemble(m.Get()), R"(%fn1 = func my_func(%p:f32):void -> %fn2 EXPECT_EQ(Disassemble(m.Get()), R"(%fn1 = func my_func(%p:f32):void -> %fn2
%fn2 = block { %fn2 = block {
jmp %fn3 # return br %fn3 # return
} }
%fn3 = func_terminator %fn3 = func_terminator
%fn4 = func test_function():void [@compute @workgroup_size(1, 1, 1)] -> %fn5 %fn4 = func test_function():void [@compute @workgroup_size(1, 1, 1)] -> %fn5
%fn5 = block { %fn5 = block {
%2:void = call my_func, 6.0f %2:void = call my_func, 6.0f
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -115,7 +115,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Convert) {
%fn4 = block { %fn4 = block {
%2:i32 = load %i %2:i32 = load %i
%tint_symbol:f32 = convert i32, %2 %tint_symbol:f32 = convert i32, %2
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator
@ -158,7 +158,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Construct) {
%fn4 = block { %fn4 = block {
%2:f32 = load %i %2:f32 = load %i
%tint_symbol:vec3<f32> = construct 2.0f, 3.0f, %2 %tint_symbol:vec3<f32> = construct 2.0f, 3.0f, %2
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator

2
src/tint/ir/from_program_store_test.cc
View File

@ -45,7 +45,7 @@ TEST_F(IR_BuilderImplTest, EmitStatement_Assign) {
%fn3 = func test_function():void [@compute @workgroup_size(1, 1, 1)] -> %fn4 %fn3 = func test_function():void [@compute @workgroup_size(1, 1, 1)] -> %fn4
%fn4 = block { %fn4 = block {
store %a, 4u store %a, 4u
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator

86
src/tint/ir/from_program_test.cc
View File

@ -72,7 +72,7 @@ TEST_F(IR_BuilderImplTest, Func) {
EXPECT_EQ(Disassemble(m.Get()), R"(%fn1 = func f():void -> %fn2 EXPECT_EQ(Disassemble(m.Get()), R"(%fn1 = func f():void -> %fn2
%fn2 = block { %fn2 = block {
jmp %fn3 # return br %fn3 # return
} }
%fn3 = func_terminator %fn3 = func_terminator
@ -123,7 +123,7 @@ TEST_F(IR_BuilderImplTest, Func_WithMultipleParam) {
EXPECT_EQ(Disassemble(m.Get()), R"(%fn1 = func f(%a:u32, %b:i32, %c:bool):void -> %fn2 EXPECT_EQ(Disassemble(m.Get()), R"(%fn1 = func f(%a:u32, %b:i32, %c:bool):void -> %fn2
%fn2 = block { %fn2 = block {
jmp %fn3 # return br %fn3 # return
} }
%fn3 = func_terminator %fn3 = func_terminator
@ -173,7 +173,7 @@ TEST_F(IR_BuilderImplTest, IfStatement) {
} }
%fn5 = block { %fn5 = block {
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -212,7 +212,7 @@ TEST_F(IR_BuilderImplTest, IfStatement_TrueReturns) {
} }
%fn5 = block { %fn5 = block {
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -251,7 +251,7 @@ TEST_F(IR_BuilderImplTest, IfStatement_FalseReturns) {
br %fn6 # return br %fn6 # return
} }
%fn5 = block { %fn5 = block {
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -323,10 +323,8 @@ TEST_F(IR_BuilderImplTest, IfStatement_JumpChainToMerge) {
} }
%fn5 = block { %fn5 = block {
jmp %fn9 # return br %fn9 # return
} }
%fn9 = func_terminator
%fn6 = block { %fn6 = block {
br %fn8 br %fn8
} }
@ -339,6 +337,8 @@ TEST_F(IR_BuilderImplTest, IfStatement_JumpChainToMerge) {
br %fn5 br %fn5
} }
%fn9 = func_terminator
)"); )");
} }
@ -375,7 +375,7 @@ TEST_F(IR_BuilderImplTest, Loop_WithBreak) {
} }
%fn5 = block { %fn5 = block {
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -421,10 +421,8 @@ TEST_F(IR_BuilderImplTest, Loop_WithContinue) {
} }
%fn5 = block { %fn5 = block {
jmp %fn9 # return br %fn9 # return
} }
%fn9 = func_terminator
%fn6 = block { %fn6 = block {
br %fn5 br %fn5
} }
@ -437,6 +435,8 @@ TEST_F(IR_BuilderImplTest, Loop_WithContinue) {
br %fn4 br %fn4
} }
%fn9 = func_terminator
)"); )");
} }
@ -470,7 +470,7 @@ TEST_F(IR_BuilderImplTest, Loop_WithContinuing_BreakIf) {
} }
%fn3 = block { %fn3 = block {
jmp %fn4 br %fn4
} }
%fn4 = block { %fn4 = block {
@ -478,10 +478,8 @@ TEST_F(IR_BuilderImplTest, Loop_WithContinuing_BreakIf) {
} }
%fn5 = block { %fn5 = block {
jmp %fn9 # return br %fn9 # return
} }
%fn9 = func_terminator
%fn6 = block { %fn6 = block {
br %fn5 br %fn5
} }
@ -494,6 +492,8 @@ TEST_F(IR_BuilderImplTest, Loop_WithContinuing_BreakIf) {
br %fn3 br %fn3
} }
%fn9 = func_terminator
)"); )");
} }
@ -514,7 +514,7 @@ TEST_F(IR_BuilderImplTest, Loop_Continuing_Body_Scope) {
} }
%fn3 = block { %fn3 = block {
jmp %fn4 br %fn4
} }
%fn4 = block { %fn4 = block {
@ -522,10 +522,8 @@ TEST_F(IR_BuilderImplTest, Loop_Continuing_Body_Scope) {
} }
%fn5 = block { %fn5 = block {
jmp %fn9 # return br %fn9 # return
} }
%fn9 = func_terminator
%fn6 = block { %fn6 = block {
br %fn5 br %fn5
} }
@ -538,6 +536,8 @@ TEST_F(IR_BuilderImplTest, Loop_Continuing_Body_Scope) {
br %fn3 br %fn3
} }
%fn9 = func_terminator
)"); )");
} }
@ -696,7 +696,7 @@ TEST_F(IR_BuilderImplTest, Loop_WithOnlyReturn_ContinuingBreakIf) {
} }
%fn12 = block { %fn12 = block {
jmp %fn6 # return br %fn6 # return
} }
)"); )");
} }
@ -739,10 +739,8 @@ TEST_F(IR_BuilderImplTest, Loop_WithIf_BothBranchesBreak) {
} }
%fn5 = block { %fn5 = block {
jmp %fn8 # return br %fn8 # return
} }
%fn8 = func_terminator
%fn6 = block { %fn6 = block {
br %fn5 br %fn5
} }
@ -751,6 +749,8 @@ TEST_F(IR_BuilderImplTest, Loop_WithIf_BothBranchesBreak) {
br %fn5 br %fn5
} }
%fn8 = func_terminator
)"); )");
} }
@ -786,10 +786,8 @@ TEST_F(IR_BuilderImplTest, Loop_Nested) {
} }
%fn5 = block { %fn5 = block {
jmp %fn9 # return br %fn9 # return
} }
%fn9 = func_terminator
%fn6 = block { %fn6 = block {
if true [t: %fn10, f: %fn11, m: %fn12] if true [t: %fn10, f: %fn11, m: %fn12]
} }
@ -802,6 +800,8 @@ TEST_F(IR_BuilderImplTest, Loop_Nested) {
if true [t: %fn16, f: %fn17, m: %fn18] if true [t: %fn16, f: %fn17, m: %fn18]
} }
%fn9 = func_terminator
%fn10 = block { %fn10 = block {
br %fn8 br %fn8
} }
@ -835,7 +835,7 @@ TEST_F(IR_BuilderImplTest, Loop_Nested) {
} }
%fn18 = block { %fn18 = block {
jmp %fn4 br %fn4
} }
%fn19 = block { %fn19 = block {
@ -847,11 +847,11 @@ TEST_F(IR_BuilderImplTest, Loop_Nested) {
} }
%fn21 = block { %fn21 = block {
jmp %fn7 br %fn7
} }
%fn22 = block { %fn22 = block {
jmp %fn23 br %fn23
} }
%fn23 = block { %fn23 = block {
@ -917,10 +917,8 @@ TEST_F(IR_BuilderImplTest, While) {
} }
%fn5 = block { %fn5 = block {
jmp %fn9 # return br %fn9 # return
} }
%fn9 = func_terminator
%fn6 = block { %fn6 = block {
br %fn8 br %fn8
} }
@ -930,9 +928,11 @@ TEST_F(IR_BuilderImplTest, While) {
} }
%fn8 = block { %fn8 = block {
jmp %fn4 br %fn4
} }
%fn9 = func_terminator
)"); )");
} }
@ -976,10 +976,8 @@ TEST_F(IR_BuilderImplTest, While_Return) {
} }
%fn5 = block { %fn5 = block {
jmp %fn9 # return br %fn9 # return
} }
%fn9 = func_terminator
%fn6 = block { %fn6 = block {
br %fn8 br %fn8
} }
@ -991,6 +989,8 @@ TEST_F(IR_BuilderImplTest, While_Return) {
%fn8 = block { %fn8 = block {
br %fn9 # return br %fn9 # return
} }
%fn9 = func_terminator
)"); )");
} }
@ -1068,7 +1068,7 @@ TEST_F(IR_BuilderImplTest, For_NoInitCondOrContinuing) {
} }
%fn5 = block { %fn5 = block {
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -1132,7 +1132,7 @@ TEST_F(IR_BuilderImplTest, Switch) {
} }
%fn6 = block { %fn6 = block {
jmp %fn7 # return br %fn7 # return
} }
%fn7 = func_terminator %fn7 = func_terminator
@ -1184,7 +1184,7 @@ TEST_F(IR_BuilderImplTest, Switch_MultiSelector) {
} }
%fn4 = block { %fn4 = block {
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator
@ -1224,7 +1224,7 @@ TEST_F(IR_BuilderImplTest, Switch_OnlyDefault) {
} }
%fn4 = block { %fn4 = block {
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator
@ -1277,7 +1277,7 @@ TEST_F(IR_BuilderImplTest, Switch_WithBreak) {
} }
%fn5 = block { %fn5 = block {
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -1351,7 +1351,7 @@ TEST_F(IR_BuilderImplTest, Emit_Phony) {
%fn4 = func test_function():void [@compute @workgroup_size(1, 1, 1)] -> %fn5 %fn4 = func test_function():void [@compute @workgroup_size(1, 1, 1)] -> %fn5
%fn5 = block { %fn5 = block {
%1:i32 = call b %1:i32 = call b
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator

10
src/tint/ir/from_program_unary_test.cc
View File

@ -44,7 +44,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Unary_Not) {
%fn5 = block { %fn5 = block {
%1:bool = call my_func %1:bool = call my_func
%tint_symbol:bool = eq %1, false %tint_symbol:bool = eq %1, false
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -69,7 +69,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Unary_Complement) {
%fn5 = block { %fn5 = block {
%1:u32 = call my_func %1:u32 = call my_func
%tint_symbol:u32 = complement %1 %tint_symbol:u32 = complement %1
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -94,7 +94,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Unary_Negation) {
%fn5 = block { %fn5 = block {
%1:i32 = call my_func %1:i32 = call my_func
%tint_symbol:i32 = negation %1 %tint_symbol:i32 = negation %1
jmp %fn6 # return br %fn6 # return
} }
%fn6 = func_terminator %fn6 = func_terminator
@ -119,7 +119,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Unary_AddressOf) {
%fn3 = func test_function():void [@compute @workgroup_size(1, 1, 1)] -> %fn4 %fn3 = func test_function():void [@compute @workgroup_size(1, 1, 1)] -> %fn4
%fn4 = block { %fn4 = block {
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator
@ -147,7 +147,7 @@ TEST_F(IR_BuilderImplTest, EmitExpression_Unary_Indirection) {
%fn3 = func test_function():void [@compute @workgroup_size(1, 1, 1)] -> %fn4 %fn3 = func test_function():void [@compute @workgroup_size(1, 1, 1)] -> %fn4
%fn4 = block { %fn4 = block {
store %v3, 42i store %v3, 42i
jmp %fn5 # return br %fn5 # return
} }
%fn5 = func_terminator %fn5 = func_terminator

4
src/tint/ir/from_program_var_test.cc
View File

@ -70,7 +70,7 @@ TEST_F(IR_BuilderImplTest, Emit_Var_NoInit) {
R"(%fn1 = func test_function():void [@compute @workgroup_size(1, 1, 1)] -> %fn2 R"(%fn1 = func test_function():void [@compute @workgroup_size(1, 1, 1)] -> %fn2
%fn2 = block { %fn2 = block {
%a:ptr<function, u32, read_write> = var %a:ptr<function, u32, read_write> = var
jmp %fn3 # return br %fn3 # return
} }
%fn3 = func_terminator %fn3 = func_terminator
@ -89,7 +89,7 @@ TEST_F(IR_BuilderImplTest, Emit_Var_Init) {
R"(%fn1 = func test_function():void [@compute @workgroup_size(1, 1, 1)] -> %fn2 R"(%fn1 = func test_function():void [@compute @workgroup_size(1, 1, 1)] -> %fn2
%fn2 = block { %fn2 = block {
%a:ptr<function, u32, read_write> = var, 2u %a:ptr<function, u32, read_write> = var, 2u
jmp %fn3 # return br %fn3 # return
} }
%fn3 = func_terminator %fn3 = func_terminator

25
src/tint/ir/jump.cc
View File

@ -1,25 +0,0 @@
// Copyright 2023 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/tint/ir/jump.h"
TINT_INSTANTIATE_TYPEINFO(tint::ir::Jump);
namespace tint::ir {
Jump::Jump(FlowNode* to, utils::VectorRef<Value*> args) : Base(to, args) {}
Jump::~Jump() = default;
} // namespace tint::ir

37
src/tint/ir/jump.h
View File

@ -1,37 +0,0 @@
// Copyright 2023 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_IR_JUMP_H_
#define SRC_TINT_IR_JUMP_H_
#include "src/tint/ir/block.h"
#include "src/tint/ir/branch.h"
#include "src/tint/ir/value.h"
#include "src/tint/utils/castable.h"
namespace tint::ir {
/// A jump instruction. A jump is walk continuing.
class Jump : public utils::Castable<Jump, Branch> {
public:
/// Constructor
/// @param to the block to branch too
/// @param args the branch arguments
explicit Jump(FlowNode* to, utils::VectorRef<Value*> args = {});
~Jump() override;
};
} // namespace tint::ir
#endif // SRC_TINT_IR_JUMP_H_

6
src/tint/ir/to_program.cc
View File

@ -23,7 +23,6 @@
#include "src/tint/ir/function_terminator.h" #include "src/tint/ir/function_terminator.h"
#include "src/tint/ir/if.h" #include "src/tint/ir/if.h"
#include "src/tint/ir/instruction.h" #include "src/tint/ir/instruction.h"
#include "src/tint/ir/jump.h"
#include "src/tint/ir/load.h" #include "src/tint/ir/load.h"
#include "src/tint/ir/module.h" #include "src/tint/ir/module.h"
#include "src/tint/ir/store.h" #include "src/tint/ir/store.h"
@ -137,10 +136,7 @@ class State {
stmts.Push(s); stmts.Push(s);
} }
} }
if (blk->Branch()->Is<Jump>() && blk->Branch()->To()->Is<Block>()) { if (auto* if_ = blk->Branch()->As<ir::If>()) {
block = blk->Branch()->To()->As<Block>();
return kContinue;
} else if (auto* if_ = blk->Branch()->As<ir::If>()) {
if (if_->Merge()->HasBranchTarget()) { if (if_->Merge()->HasBranchTarget()) {
block = if_->Merge(); block = if_->Merge();
return kContinue; return kContinue;