writer/hlsl: Use the WrapArraysInStructs transform

Fixes issues with using arrays as function return types.

Fixed: tint:848
Change-Id: Iee8af0f2cea9d19e448176446c6599be2bd32316
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/54321
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>

src/transform/hlsl.cc

@@ -25,6 +25,7 @@
 #include "src/transform/manager.h"
 #include "src/transform/promote_initializers_to_const_var.h"
 #include "src/transform/simplify.h"
+#include "src/transform/wrap_arrays_in_structs.h"
 
 namespace tint {
 namespace transform {
@@ -50,6 +51,7 @@ Output Hlsl::Run(const Program* in, const DataMap&) {
   manager.Add<CalculateArrayLength>();
   manager.Add<ExternalTextureTransform>();
   manager.Add<PromoteInitializersToConstVar>();
+  manager.Add<WrapArraysInStructs>();
   data.Add<CanonicalizeEntryPointIO::Config>(
       CanonicalizeEntryPointIO::BuiltinStyle::kStructMember);
   auto out = manager.Run(in, data);

src/writer/hlsl/generator_impl_function_test.cc

@@ -763,15 +763,39 @@ TEST_F(HlslGeneratorImplTest_Function, Emit_Function_WithArrayParams) {
            Return(),
        });
 
-  GeneratorImpl& gen = Build();
+  GeneratorImpl& gen = SanitizeAndBuild();
-
-  gen.increment_indent();
 
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
-  EXPECT_EQ(result(), R"(  void my_func(float a[5]) {
+  EXPECT_THAT(result(), HasSubstr(R"(
+struct tint_array_wrapper {
+  float arr[5];
+};
+
+void my_func(tint_array_wrapper a) {
   return;
 }
-)");
+)"));
+}
+
+TEST_F(HlslGeneratorImplTest_Function, Emit_Function_WithArrayReturn) {
+  Func("my_func", {}, ty.array<f32, 5>(),
+       {
+           Return(Construct(ty.array<f32, 5>())),
+       });
+
+  GeneratorImpl& gen = SanitizeAndBuild();
+
+  ASSERT_TRUE(gen.Generate(out)) << gen.error();
+  EXPECT_THAT(result(), HasSubstr(R"(
+struct tint_array_wrapper {
+  float arr[5];
+};
+
+tint_array_wrapper my_func() {
+  const tint_array_wrapper tint_symbol = {{0.0f, 0.0f, 0.0f, 0.0f, 0.0f}};
+  return tint_symbol;
+}
+)"));
 }
 
 // https://crbug.com/tint/297

src/writer/hlsl/generator_impl_sanitizer_test.cc

@@ -206,9 +206,13 @@ TEST_F(HlslSanitizerTest, PromoteArrayInitializerToConstVar) {
   ASSERT_TRUE(gen.Generate(out)) << gen.error();
 
   auto got = result();
-  auto* expect = R"(void main() {
+  auto* expect = R"(struct tint_array_wrapper {
-  const int tint_symbol[4] = {1, 2, 3, 4};
+  int arr[4];
-  int pos = tint_symbol[3];
+};
+
+void main() {
+  const tint_array_wrapper tint_symbol = {{1, 2, 3, 4}};
+  int pos = tint_symbol.arr[3];
   return;
 }
 )";

test/array/assign_to_function_var.wgsl.expected.hlsl

@@ -1,43 +1,53 @@
-SKIP: FAILED
-
-
-
-Validation Failure:
 [numthreads(1, 1, 1)]
 void unused_entry_point() {
   return;
 }
 
-struct S {
+struct tint_array_wrapper {
   int arr[4];
 };
+struct S {
+  tint_array_wrapper arr;
+};
 
-int[4] tint_symbol_2(RWByteAddressBuffer buffer, uint offset) {
+tint_array_wrapper tint_symbol_2(RWByteAddressBuffer buffer, uint offset) {
-  const int tint_symbol_3[4] = {asint(buffer.Load((offset + 0u))), asint(buffer.Load((offset + 16u))), asint(buffer.Load((offset + 32u))), asint(buffer.Load((offset + 48u)))};
+  const tint_array_wrapper tint_symbol_3 = {{asint(buffer.Load((offset + 0u))), asint(buffer.Load((offset + 16u))), asint(buffer.Load((offset + 32u))), asint(buffer.Load((offset + 48u)))}};
   return tint_symbol_3;
 }
 
-static int src_private[4];
+static tint_array_wrapper src_private;
-groupshared int src_workgroup[4];
+groupshared tint_array_wrapper src_workgroup;
 ConstantBuffer<S> src_uniform : register(b0, space0);
 RWByteAddressBuffer src_storage : register(u1, space0);
 
-int[4] ret_arr() {
+tint_array_wrapper ret_arr() {
-  const int tint_symbol_4[4] = {0, 0, 0, 0};
+  const tint_array_wrapper tint_symbol_4 = {{0, 0, 0, 0}};
   return tint_symbol_4;
 }
+
 S ret_struct_arr() {
-  const S tint_symbol_5 = {{0, 0, 0, 0}};
+  const S tint_symbol_5 = {{{0, 0, 0, 0}}};
   return tint_symbol_5;
 }
-void foo(int src_param[4]) {
+
-  int src_function[4] = {0, 0, 0, 0};
+struct tint_array_wrapper_3 {
-  int tint_symbol[4] = {0, 0, 0, 0};
+  int arr[2];
-  const int tint_symbol_6[4] = {1, 2, 3, 3};
+};
+struct tint_array_wrapper_2 {
+  tint_array_wrapper_3 arr[3];
+};
+struct tint_array_wrapper_1 {
+  tint_array_wrapper_2 arr[4];
+};
+
+void foo(tint_array_wrapper src_param) {
+  tint_array_wrapper src_function = {{0, 0, 0, 0}};
+  tint_array_wrapper tint_symbol = {{0, 0, 0, 0}};
+  const tint_array_wrapper tint_symbol_6 = {{1, 2, 3, 3}};
   tint_symbol = tint_symbol_6;
   tint_symbol = src_param;
   tint_symbol = ret_arr();
-  const int src_let[4] = {0, 0, 0, 0};
+  const tint_array_wrapper src_let = {{0, 0, 0, 0}};
   tint_symbol = src_let;
   tint_symbol = src_function;
   tint_symbol = src_private;
@@ -45,17 +55,7 @@ void foo(int src_param[4]) {
   tint_symbol = ret_struct_arr().arr;
   tint_symbol = src_uniform.arr;
   tint_symbol = tint_symbol_2(src_storage, 0u);
-  int dst_nested[4][3][2] = {{{0, 0}, {0, 0}, {0, 0}}, {{0, 0}, {0, 0}, {0, 0}}, {{0, 0}, {0, 0}, {0, 0}}, {{0, 0}, {0, 0}, {0, 0}}};
+  tint_array_wrapper_1 dst_nested = {{{{{{0, 0}}, {{0, 0}}, {{0, 0}}}}, {{{{0, 0}}, {{0, 0}}, {{0, 0}}}}, {{{{0, 0}}, {{0, 0}}, {{0, 0}}}}, {{{{0, 0}}, {{0, 0}}, {{0, 0}}}}}};
-  int src_nested[4][3][2] = {{{0, 0}, {0, 0}, {0, 0}}, {{0, 0}, {0, 0}, {0, 0}}, {{0, 0}, {0, 0}, {0, 0}}, {{0, 0}, {0, 0}, {0, 0}}};
+  tint_array_wrapper_1 src_nested = {{{{{{0, 0}}, {{0, 0}}, {{0, 0}}}}, {{{{0, 0}}, {{0, 0}}, {{0, 0}}}}, {{{{0, 0}}, {{0, 0}}, {{0, 0}}}}, {{{{0, 0}}, {{0, 0}}, {{0, 0}}}}}};
   dst_nested = src_nested;
 }
-
-tint_bTL3Zd:10:62: error: brackets are not allowed here; to declare an array, place the brackets after the name
-int[4] tint_symbol_2(RWByteAddressBuffer buffer, uint offset) {
-   ~~~                                                       ^
-                                                             [4]
-tint_bTL3Zd:20:17: error: brackets are not allowed here; to declare an array, place the brackets after the name
-int[4] ret_arr() {
-   ~~~          ^
-                [4]
-

test/array/assign_to_private_var.wgsl.expected.hlsl

@@ -1,44 +1,55 @@
-SKIP: FAILED
-
-
-
-Validation Failure:
 [numthreads(1, 1, 1)]
 void unused_entry_point() {
   return;
 }
 
-struct S {
+struct tint_array_wrapper {
   int arr[4];
 };
+struct S {
+  tint_array_wrapper arr;
+};
 
-int[4] tint_symbol_2(RWByteAddressBuffer buffer, uint offset) {
+tint_array_wrapper tint_symbol_2(RWByteAddressBuffer buffer, uint offset) {
-  const int tint_symbol_3[4] = {asint(buffer.Load((offset + 0u))), asint(buffer.Load((offset + 16u))), asint(buffer.Load((offset + 32u))), asint(buffer.Load((offset + 48u)))};
+  const tint_array_wrapper tint_symbol_3 = {{asint(buffer.Load((offset + 0u))), asint(buffer.Load((offset + 16u))), asint(buffer.Load((offset + 32u))), asint(buffer.Load((offset + 48u)))}};
   return tint_symbol_3;
 }
 
-static int src_private[4];
+static tint_array_wrapper src_private;
-groupshared int src_workgroup[4];
+groupshared tint_array_wrapper src_workgroup;
 ConstantBuffer<S> src_uniform : register(b0, space0);
 RWByteAddressBuffer src_storage : register(u1, space0);
-static int tint_symbol[4];
+static tint_array_wrapper tint_symbol;
-static int dst_nested[4][3][2];
 
-int[4] ret_arr() {
+struct tint_array_wrapper_3 {
-  const int tint_symbol_4[4] = {0, 0, 0, 0};
+  int arr[2];
+};
+struct tint_array_wrapper_2 {
+  tint_array_wrapper_3 arr[3];
+};
+struct tint_array_wrapper_1 {
+  tint_array_wrapper_2 arr[4];
+};
+
+static tint_array_wrapper_1 dst_nested;
+
+tint_array_wrapper ret_arr() {
+  const tint_array_wrapper tint_symbol_4 = {{0, 0, 0, 0}};
   return tint_symbol_4;
 }
+
 S ret_struct_arr() {
-  const S tint_symbol_5 = {{0, 0, 0, 0}};
+  const S tint_symbol_5 = {{{0, 0, 0, 0}}};
   return tint_symbol_5;
 }
-void foo(int src_param[4]) {
+
-  int src_function[4] = {0, 0, 0, 0};
+void foo(tint_array_wrapper src_param) {
-  const int tint_symbol_6[4] = {1, 2, 3, 3};
+  tint_array_wrapper src_function = {{0, 0, 0, 0}};
+  const tint_array_wrapper tint_symbol_6 = {{1, 2, 3, 3}};
   tint_symbol = tint_symbol_6;
   tint_symbol = src_param;
   tint_symbol = ret_arr();
-  const int src_let[4] = {0, 0, 0, 0};
+  const tint_array_wrapper src_let = {{0, 0, 0, 0}};
   tint_symbol = src_let;
   tint_symbol = src_function;
   tint_symbol = src_private;
@@ -46,16 +57,6 @@ void foo(int src_param[4]) {
   tint_symbol = ret_struct_arr().arr;
   tint_symbol = src_uniform.arr;
   tint_symbol = tint_symbol_2(src_storage, 0u);
-  int src_nested[4][3][2] = {{{0, 0}, {0, 0}, {0, 0}}, {{0, 0}, {0, 0}, {0, 0}}, {{0, 0}, {0, 0}, {0, 0}}, {{0, 0}, {0, 0}, {0, 0}}};
+  tint_array_wrapper_1 src_nested = {{{{{{0, 0}}, {{0, 0}}, {{0, 0}}}}, {{{{0, 0}}, {{0, 0}}, {{0, 0}}}}, {{{{0, 0}}, {{0, 0}}, {{0, 0}}}}, {{{{0, 0}}, {{0, 0}}, {{0, 0}}}}}};
   dst_nested = src_nested;
 }
-
-tint_Sca05u:10:62: error: brackets are not allowed here; to declare an array, place the brackets after the name
-int[4] tint_symbol_2(RWByteAddressBuffer buffer, uint offset) {
-   ~~~                                                       ^
-                                                             [4]
-tint_Sca05u:22:17: error: brackets are not allowed here; to declare an array, place the brackets after the name
-int[4] ret_arr() {
-   ~~~          ^
-                [4]
-

test/array/assign_to_storage_var.wgsl.expected.hlsl

@@ -1,66 +1,79 @@
-SKIP: FAILED
-
-
-
-Validation Failure:
 [numthreads(1, 1, 1)]
 void unused_entry_point() {
   return;
 }
 
-struct S {
+struct tint_array_wrapper {
   int arr[4];
 };
+struct S {
+  tint_array_wrapper arr;
+};
 
-int[4] tint_symbol_2(RWByteAddressBuffer buffer, uint offset) {
+tint_array_wrapper tint_symbol_2(RWByteAddressBuffer buffer, uint offset) {
-  const int tint_symbol_9[4] = {asint(buffer.Load((offset + 0u))), asint(buffer.Load((offset + 16u))), asint(buffer.Load((offset + 32u))), asint(buffer.Load((offset + 48u)))};
+  const tint_array_wrapper tint_symbol_9 = {{asint(buffer.Load((offset + 0u))), asint(buffer.Load((offset + 16u))), asint(buffer.Load((offset + 32u))), asint(buffer.Load((offset + 48u)))}};
   return tint_symbol_9;
 }
-void tint_symbol_4(RWByteAddressBuffer buffer, uint offset, int value[4]) {
+
-  buffer.Store((offset + 0u), asuint(value[0u]));
+void tint_symbol_4(RWByteAddressBuffer buffer, uint offset, tint_array_wrapper value) {
-  buffer.Store((offset + 16u), asuint(value[1u]));
+  buffer.Store((offset + 0u), asuint(value.arr[0u]));
-  buffer.Store((offset + 32u), asuint(value[2u]));
+  buffer.Store((offset + 16u), asuint(value.arr[1u]));
-  buffer.Store((offset + 48u), asuint(value[3u]));
+  buffer.Store((offset + 32u), asuint(value.arr[2u]));
+  buffer.Store((offset + 48u), asuint(value.arr[3u]));
 }
 
-void tint_symbol_6(RWByteAddressBuffer buffer, uint offset, int value[2]) {
+struct tint_array_wrapper_3 {
-  buffer.Store((offset + 0u), asuint(value[0u]));
+  int arr[2];
-  buffer.Store((offset + 4u), asuint(value[1u]));
+};
-}
+struct tint_array_wrapper_2 {
-void tint_symbol_7(RWByteAddressBuffer buffer, uint offset, int value[3][2]) {
+  tint_array_wrapper_3 arr[3];
-  tint_symbol_6(buffer, (offset + 0u), value[0u]);
+};
-  tint_symbol_6(buffer, (offset + 8u), value[1u]);
+struct tint_array_wrapper_1 {
-  tint_symbol_6(buffer, (offset + 16u), value[2u]);
+  tint_array_wrapper_2 arr[4];
-}
+};
-void tint_symbol_8(RWByteAddressBuffer buffer, uint offset, int value[4][3][2]) {
+
-  tint_symbol_7(buffer, (offset + 0u), value[0u]);
+void tint_symbol_6(RWByteAddressBuffer buffer, uint offset, tint_array_wrapper_3 value) {
-  tint_symbol_7(buffer, (offset + 24u), value[1u]);
+  buffer.Store((offset + 0u), asuint(value.arr[0u]));
-  tint_symbol_7(buffer, (offset + 48u), value[2u]);
+  buffer.Store((offset + 4u), asuint(value.arr[1u]));
-  tint_symbol_7(buffer, (offset + 72u), value[3u]);
 }
 
-static int src_private[4];
+void tint_symbol_7(RWByteAddressBuffer buffer, uint offset, tint_array_wrapper_2 value) {
-groupshared int src_workgroup[4];
+  tint_symbol_6(buffer, (offset + 0u), value.arr[0u]);
+  tint_symbol_6(buffer, (offset + 8u), value.arr[1u]);
+  tint_symbol_6(buffer, (offset + 16u), value.arr[2u]);
+}
+
+void tint_symbol_8(RWByteAddressBuffer buffer, uint offset, tint_array_wrapper_1 value) {
+  tint_symbol_7(buffer, (offset + 0u), value.arr[0u]);
+  tint_symbol_7(buffer, (offset + 24u), value.arr[1u]);
+  tint_symbol_7(buffer, (offset + 48u), value.arr[2u]);
+  tint_symbol_7(buffer, (offset + 72u), value.arr[3u]);
+}
+
+static tint_array_wrapper src_private;
+groupshared tint_array_wrapper src_workgroup;
 ConstantBuffer<S> src_uniform : register(b0, space0);
 RWByteAddressBuffer src_storage : register(u1, space0);
 RWByteAddressBuffer tint_symbol : register(u2, space0);
 RWByteAddressBuffer dst_nested : register(u3, space0);
 
-int[4] ret_arr() {
+tint_array_wrapper ret_arr() {
-  const int tint_symbol_10[4] = {0, 0, 0, 0};
+  const tint_array_wrapper tint_symbol_10 = {{0, 0, 0, 0}};
   return tint_symbol_10;
 }
+
 S ret_struct_arr() {
-  const S tint_symbol_11 = {{0, 0, 0, 0}};
+  const S tint_symbol_11 = {{{0, 0, 0, 0}}};
   return tint_symbol_11;
 }
-void foo(int src_param[4]) {
+
-  int src_function[4] = {0, 0, 0, 0};
+void foo(tint_array_wrapper src_param) {
-  const int tint_symbol_12[4] = {1, 2, 3, 3};
+  tint_array_wrapper src_function = {{0, 0, 0, 0}};
+  const tint_array_wrapper tint_symbol_12 = {{1, 2, 3, 3}};
   tint_symbol_4(tint_symbol, 0u, tint_symbol_12);
   tint_symbol_4(tint_symbol, 0u, src_param);
   tint_symbol_4(tint_symbol, 0u, ret_arr());
-  const int src_let[4] = {0, 0, 0, 0};
+  const tint_array_wrapper src_let = {{0, 0, 0, 0}};
   tint_symbol_4(tint_symbol, 0u, src_let);
   tint_symbol_4(tint_symbol, 0u, src_function);
   tint_symbol_4(tint_symbol, 0u, src_private);
@@ -68,16 +81,6 @@ void foo(int src_param[4]) {
   tint_symbol_4(tint_symbol, 0u, ret_struct_arr().arr);
   tint_symbol_4(tint_symbol, 0u, src_uniform.arr);
   tint_symbol_4(tint_symbol, 0u, tint_symbol_2(src_storage, 0u));
-  int src_nested[4][3][2] = {{{0, 0}, {0, 0}, {0, 0}}, {{0, 0}, {0, 0}, {0, 0}}, {{0, 0}, {0, 0}, {0, 0}}, {{0, 0}, {0, 0}, {0, 0}}};
+  tint_array_wrapper_1 src_nested = {{{{{{0, 0}}, {{0, 0}}, {{0, 0}}}}, {{{{0, 0}}, {{0, 0}}, {{0, 0}}}}, {{{{0, 0}}, {{0, 0}}, {{0, 0}}}}, {{{{0, 0}}, {{0, 0}}, {{0, 0}}}}}};
   tint_symbol_8(dst_nested, 0u, src_nested);
 }
-
-tint_4gsbi1:10:62: error: brackets are not allowed here; to declare an array, place the brackets after the name
-int[4] tint_symbol_2(RWByteAddressBuffer buffer, uint offset) {
-   ~~~                                                       ^
-                                                             [4]
-tint_4gsbi1:44:17: error: brackets are not allowed here; to declare an array, place the brackets after the name
-int[4] ret_arr() {
-   ~~~          ^
-                [4]
-

test/array/assign_to_subexpr.wgsl.expected.hlsl

@@ -3,18 +3,24 @@ void unused_entry_point() {
   return;
 }
 
-struct S {
+struct tint_array_wrapper {
   int arr[4];
 };
+struct S {
+  tint_array_wrapper arr;
+};
+struct tint_array_wrapper_1 {
+  tint_array_wrapper arr[2];
+};
 
 void foo() {
-  const int src[4] = {0, 0, 0, 0};
+  const tint_array_wrapper src = {{0, 0, 0, 0}};
-  int tint_symbol[4] = {0, 0, 0, 0};
+  tint_array_wrapper tint_symbol = {{0, 0, 0, 0}};
-  S dst_struct = {{0, 0, 0, 0}};
+  S dst_struct = {{{0, 0, 0, 0}}};
-  int dst_array[2][4] = {{0, 0, 0, 0}, {0, 0, 0, 0}};
+  tint_array_wrapper_1 dst_array = {{{{0, 0, 0, 0}}, {{0, 0, 0, 0}}}};
   dst_struct.arr = src;
-  dst_array[1] = src;
+  dst_array.arr[1] = src;
   tint_symbol = src;
   dst_struct.arr = src;
-  dst_array[0] = src;
+  dst_array.arr[0] = src;
 }

test/array/assign_to_workgroup_var.wgsl.expected.hlsl

@@ -1,44 +1,55 @@
-SKIP: FAILED
-
-
-
-Validation Failure:
 [numthreads(1, 1, 1)]
 void unused_entry_point() {
   return;
 }
 
-struct S {
+struct tint_array_wrapper {
   int arr[4];
 };
+struct S {
+  tint_array_wrapper arr;
+};
 
-int[4] tint_symbol_2(RWByteAddressBuffer buffer, uint offset) {
+tint_array_wrapper tint_symbol_2(RWByteAddressBuffer buffer, uint offset) {
-  const int tint_symbol_3[4] = {asint(buffer.Load((offset + 0u))), asint(buffer.Load((offset + 16u))), asint(buffer.Load((offset + 32u))), asint(buffer.Load((offset + 48u)))};
+  const tint_array_wrapper tint_symbol_3 = {{asint(buffer.Load((offset + 0u))), asint(buffer.Load((offset + 16u))), asint(buffer.Load((offset + 32u))), asint(buffer.Load((offset + 48u)))}};
   return tint_symbol_3;
 }
 
-static int src_private[4];
+static tint_array_wrapper src_private;
-groupshared int src_workgroup[4];
+groupshared tint_array_wrapper src_workgroup;
 ConstantBuffer<S> src_uniform : register(b0, space0);
 RWByteAddressBuffer src_storage : register(u1, space0);
-groupshared int tint_symbol[4];
+groupshared tint_array_wrapper tint_symbol;
-groupshared int dst_nested[4][3][2];
 
-int[4] ret_arr() {
+struct tint_array_wrapper_3 {
-  const int tint_symbol_4[4] = {0, 0, 0, 0};
+  int arr[2];
+};
+struct tint_array_wrapper_2 {
+  tint_array_wrapper_3 arr[3];
+};
+struct tint_array_wrapper_1 {
+  tint_array_wrapper_2 arr[4];
+};
+
+groupshared tint_array_wrapper_1 dst_nested;
+
+tint_array_wrapper ret_arr() {
+  const tint_array_wrapper tint_symbol_4 = {{0, 0, 0, 0}};
   return tint_symbol_4;
 }
+
 S ret_struct_arr() {
-  const S tint_symbol_5 = {{0, 0, 0, 0}};
+  const S tint_symbol_5 = {{{0, 0, 0, 0}}};
   return tint_symbol_5;
 }
-void foo(int src_param[4]) {
+
-  int src_function[4] = {0, 0, 0, 0};
+void foo(tint_array_wrapper src_param) {
-  const int tint_symbol_6[4] = {1, 2, 3, 3};
+  tint_array_wrapper src_function = {{0, 0, 0, 0}};
+  const tint_array_wrapper tint_symbol_6 = {{1, 2, 3, 3}};
   tint_symbol = tint_symbol_6;
   tint_symbol = src_param;
   tint_symbol = ret_arr();
-  const int src_let[4] = {0, 0, 0, 0};
+  const tint_array_wrapper src_let = {{0, 0, 0, 0}};
   tint_symbol = src_let;
   tint_symbol = src_function;
   tint_symbol = src_private;
@@ -46,16 +57,6 @@ void foo(int src_param[4]) {
   tint_symbol = ret_struct_arr().arr;
   tint_symbol = src_uniform.arr;
   tint_symbol = tint_symbol_2(src_storage, 0u);
-  int src_nested[4][3][2] = {{{0, 0}, {0, 0}, {0, 0}}, {{0, 0}, {0, 0}, {0, 0}}, {{0, 0}, {0, 0}, {0, 0}}, {{0, 0}, {0, 0}, {0, 0}}};
+  tint_array_wrapper_1 src_nested = {{{{{{0, 0}}, {{0, 0}}, {{0, 0}}}}, {{{{0, 0}}, {{0, 0}}, {{0, 0}}}}, {{{{0, 0}}, {{0, 0}}, {{0, 0}}}}, {{{{0, 0}}, {{0, 0}}, {{0, 0}}}}}};
   dst_nested = src_nested;
 }
-
-tint_atjMoG:10:62: error: brackets are not allowed here; to declare an array, place the brackets after the name
-int[4] tint_symbol_2(RWByteAddressBuffer buffer, uint offset) {
-   ~~~                                                       ^
-                                                             [4]
-tint_atjMoG:22:17: error: brackets are not allowed here; to declare an array, place the brackets after the name
-int[4] ret_arr() {
-   ~~~          ^
-                [4]
-

test/array/function_parameter.wgsl.expected.hlsl

@@ -1,20 +1,32 @@
-float f1(float a[4]) {
+struct tint_array_wrapper {
-  return a[3];
+  float arr[4];
+};
+
+float f1(tint_array_wrapper a) {
+  return a.arr[3];
 }
 
-float f2(float a[3][4]) {
+struct tint_array_wrapper_1 {
-  return a[2][3];
+  tint_array_wrapper arr[3];
+};
+
+float f2(tint_array_wrapper_1 a) {
+  return a.arr[2].arr[3];
 }
 
-float f3(float a[2][3][4]) {
+struct tint_array_wrapper_2 {
-  return a[1][2][3];
+  tint_array_wrapper_1 arr[2];
+};
+
+float f3(tint_array_wrapper_2 a) {
+  return a.arr[1].arr[2].arr[3];
 }
 
 [numthreads(1, 1, 1)]
 void main() {
-  const float a1[4] = {0.0f, 0.0f, 0.0f, 0.0f};
+  const tint_array_wrapper a1 = {{0.0f, 0.0f, 0.0f, 0.0f}};
-  const float a2[3][4] = {{0.0f, 0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f, 0.0f}};
+  const tint_array_wrapper_1 a2 = {{{{0.0f, 0.0f, 0.0f, 0.0f}}, {{0.0f, 0.0f, 0.0f, 0.0f}}, {{0.0f, 0.0f, 0.0f, 0.0f}}}};
-  const float a3[2][3][4] = {{{0.0f, 0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f, 0.0f}}, {{0.0f, 0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f, 0.0f}}};
+  const tint_array_wrapper_2 a3 = {{{{{{0.0f, 0.0f, 0.0f, 0.0f}}, {{0.0f, 0.0f, 0.0f, 0.0f}}, {{0.0f, 0.0f, 0.0f, 0.0f}}}}, {{{{0.0f, 0.0f, 0.0f, 0.0f}}, {{0.0f, 0.0f, 0.0f, 0.0f}}, {{0.0f, 0.0f, 0.0f, 0.0f}}}}}};
   const float v1 = f1(a1);
   const float v2 = f2(a2);
   const float v3 = f3(a3);

test/array/function_return_type.wgsl.expected.hlsl

@@ -1,38 +1,34 @@
-SKIP: FAILED
+struct tint_array_wrapper {
+  float arr[4];
+};
 
-
+tint_array_wrapper f1() {
-
+  const tint_array_wrapper tint_symbol = {{0.0f, 0.0f, 0.0f, 0.0f}};
-Validation Failure:
-float[4] f1() {
-  const float tint_symbol[4] = {0.0f, 0.0f, 0.0f, 0.0f};
   return tint_symbol;
 }
-float[3][4] f2() {
+
-  const float tint_symbol_1[3][4] = {f1(), f1(), f1()};
+struct tint_array_wrapper_1 {
+  tint_array_wrapper arr[3];
+};
+
+tint_array_wrapper_1 f2() {
+  const tint_array_wrapper_1 tint_symbol_1 = {{f1(), f1(), f1()}};
   return tint_symbol_1;
 }
-float[2][3][4] f3() {
+
-  const float tint_symbol_2[2][3][4] = {f2(), f2()};
+struct tint_array_wrapper_2 {
+  tint_array_wrapper_1 arr[2];
+};
+
+tint_array_wrapper_2 f3() {
+  const tint_array_wrapper_2 tint_symbol_2 = {{f2(), f2()}};
   return tint_symbol_2;
 }
+
 [numthreads(1, 1, 1)]
 void main() {
-  const float a1[4] = f1();
+  const tint_array_wrapper a1 = f1();
-  const float a2[3][4] = f2();
+  const tint_array_wrapper_1 a2 = f2();
-  const float a3[2][3][4] = f3();
+  const tint_array_wrapper_2 a3 = f3();
   return;
 }
-
-tint_gQgfKR:1:14: error: brackets are not allowed here; to declare an array, place the brackets after the name
-float[4] f1() {
-     ~~~     ^
-             [4]
-tint_gQgfKR:5:17: error: brackets are not allowed here; to declare an array, place the brackets after the name
-float[3][4] f2() {
-     ~~~~~~     ^
-                [3][4]
-tint_gQgfKR:9:20: error: brackets are not allowed here; to declare an array, place the brackets after the name
-float[2][3][4] f3() {
-     ~~~~~~~~~     ^
-                   [2][3][4]
-

test/array/type_constructor.wgsl.expected.hlsl

@@ -1,37 +1,50 @@
+struct tint_array_wrapper {
+  int arr[4];
+};
+struct tint_array_wrapper_2 {
+  tint_array_wrapper arr[3];
+};
+struct tint_array_wrapper_1 {
+  tint_array_wrapper_2 arr[2];
+};
+struct tint_array_wrapper_3 {
+  tint_array_wrapper arr[2];
+};
+
 [numthreads(1, 1, 1)]
 void main() {
   const int x = 42;
-  const int empty[4] = {0, 0, 0, 0};
+  const tint_array_wrapper empty = {{0, 0, 0, 0}};
-  const int nonempty[4] = {1, 2, 3, 4};
+  const tint_array_wrapper nonempty = {{1, 2, 3, 4}};
-  const int nonempty_with_expr[4] = {1, x, (x + 1), nonempty[3]};
+  const tint_array_wrapper nonempty_with_expr = {{1, x, (x + 1), nonempty.arr[3]}};
-  const int nested_empty[2][3][4] = {{{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}};
+  const tint_array_wrapper_1 nested_empty = {{{{{{0, 0, 0, 0}}, {{0, 0, 0, 0}}, {{0, 0, 0, 0}}}}, {{{{0, 0, 0, 0}}, {{0, 0, 0, 0}}, {{0, 0, 0, 0}}}}}};
-  const int tint_symbol[4] = {1, 2, 3, 4};
+  const tint_array_wrapper tint_symbol = {{1, 2, 3, 4}};
-  const int tint_symbol_1[4] = {5, 6, 7, 8};
+  const tint_array_wrapper tint_symbol_1 = {{5, 6, 7, 8}};
-  const int tint_symbol_2[4] = {9, 10, 11, 12};
+  const tint_array_wrapper tint_symbol_2 = {{9, 10, 11, 12}};
-  const int tint_symbol_3[3][4] = {tint_symbol, tint_symbol_1, tint_symbol_2};
+  const tint_array_wrapper_2 tint_symbol_3 = {{tint_symbol, tint_symbol_1, tint_symbol_2}};
-  const int tint_symbol_4[4] = {13, 14, 15, 16};
+  const tint_array_wrapper tint_symbol_4 = {{13, 14, 15, 16}};
-  const int tint_symbol_5[4] = {17, 18, 19, 20};
+  const tint_array_wrapper tint_symbol_5 = {{17, 18, 19, 20}};
-  const int tint_symbol_6[4] = {21, 22, 23, 24};
+  const tint_array_wrapper tint_symbol_6 = {{21, 22, 23, 24}};
-  const int tint_symbol_7[3][4] = {tint_symbol_4, tint_symbol_5, tint_symbol_6};
+  const tint_array_wrapper_2 tint_symbol_7 = {{tint_symbol_4, tint_symbol_5, tint_symbol_6}};
-  const int nested_nonempty[2][3][4] = {tint_symbol_3, tint_symbol_7};
+  const tint_array_wrapper_1 nested_nonempty = {{tint_symbol_3, tint_symbol_7}};
-  const int tint_symbol_8[4] = {1, 2, x, (x + 1)};
+  const tint_array_wrapper tint_symbol_8 = {{1, 2, x, (x + 1)}};
-  const int tint_symbol_9[4] = {5, 6, nonempty[2], (nonempty[3] + 1)};
+  const tint_array_wrapper tint_symbol_9 = {{5, 6, nonempty.arr[2], (nonempty.arr[3] + 1)}};
-  const int tint_symbol_10[3][4] = {tint_symbol_8, tint_symbol_9, nonempty};
+  const tint_array_wrapper_2 tint_symbol_10 = {{tint_symbol_8, tint_symbol_9, nonempty}};
-  const int nested_nonempty_with_expr[2][3][4] = {tint_symbol_10, nested_nonempty[1]};
+  const tint_array_wrapper_1 nested_nonempty_with_expr = {{tint_symbol_10, nested_nonempty.arr[1]}};
-  const int tint_symbol_11[4] = {0, 0, 0, 0};
+  const tint_array_wrapper tint_symbol_11 = {{0, 0, 0, 0}};
-  const int subexpr_empty = tint_symbol_11[1];
+  const int subexpr_empty = tint_symbol_11.arr[1];
-  const int tint_symbol_12[4] = {1, 2, 3, 4};
+  const tint_array_wrapper tint_symbol_12 = {{1, 2, 3, 4}};
-  const int subexpr_nonempty = tint_symbol_12[2];
+  const int subexpr_nonempty = tint_symbol_12.arr[2];
-  const int tint_symbol_13[4] = {1, x, (x + 1), nonempty[3]};
+  const tint_array_wrapper tint_symbol_13 = {{1, x, (x + 1), nonempty.arr[3]}};
-  const int subexpr_nonempty_with_expr = tint_symbol_13[2];
+  const int subexpr_nonempty_with_expr = tint_symbol_13.arr[2];
-  const int tint_symbol_14[2][4] = {{0, 0, 0, 0}, {0, 0, 0, 0}};
+  const tint_array_wrapper_3 tint_symbol_14 = {{{{0, 0, 0, 0}}, {{0, 0, 0, 0}}}};
-  const int subexpr_nested_empty[4] = tint_symbol_14[1];
+  const tint_array_wrapper subexpr_nested_empty = tint_symbol_14.arr[1];
-  const int tint_symbol_15[4] = {1, 2, 3, 4};
+  const tint_array_wrapper tint_symbol_15 = {{1, 2, 3, 4}};
-  const int tint_symbol_16[4] = {5, 6, 7, 8};
+  const tint_array_wrapper tint_symbol_16 = {{5, 6, 7, 8}};
-  const int tint_symbol_17[2][4] = {tint_symbol_15, tint_symbol_16};
+  const tint_array_wrapper_3 tint_symbol_17 = {{tint_symbol_15, tint_symbol_16}};
-  const int subexpr_nested_nonempty[4] = tint_symbol_17[1];
+  const tint_array_wrapper subexpr_nested_nonempty = tint_symbol_17.arr[1];
-  const int tint_symbol_18[4] = {1, x, (x + 1), nonempty[3]};
+  const tint_array_wrapper tint_symbol_18 = {{1, x, (x + 1), nonempty.arr[3]}};
-  const int tint_symbol_19[2][4] = {tint_symbol_18, nested_nonempty[1][2]};
+  const tint_array_wrapper_3 tint_symbol_19 = {{tint_symbol_18, nested_nonempty.arr[1].arr[2]}};
-  const int subexpr_nested_nonempty_with_expr[4] = tint_symbol_19[1];
+  const tint_array_wrapper subexpr_nested_nonempty_with_expr = tint_symbol_19.arr[1];
   return;
 }

test/bug/tint/403.wgsl.expected.hlsl

@@ -19,16 +19,19 @@ struct tint_symbol_1 {
 struct tint_symbol_2 {
   float4 value : SV_Position;
 };
+struct tint_array_wrapper {
+  float2 arr[3];
+};
 
 tint_symbol_2 main(tint_symbol_1 tint_symbol) {
   const int gl_VertexIndex = tint_symbol.gl_VertexIndex;
-  float2 indexable[3] = {float2(0.0f, 0.0f), float2(0.0f, 0.0f), float2(0.0f, 0.0f)};
+  tint_array_wrapper indexable = {{float2(0.0f, 0.0f), float2(0.0f, 0.0f), float2(0.0f, 0.0f)}};
   const float2x2 x_23 = x_20.transform1;
   const float2x2 x_28 = x_26.transform2;
   const int x_46 = gl_VertexIndex;
-  const float2 tint_symbol_3[3] = {float2(-1.0f, 1.0f), float2(1.0f, 1.0f), float2(-1.0f, -1.0f)};
+  const tint_array_wrapper tint_symbol_3 = {{float2(-1.0f, 1.0f), float2(1.0f, 1.0f), float2(-1.0f, -1.0f)}};
   indexable = tint_symbol_3;
-  const float2 x_51 = indexable[x_46];
+  const float2 x_51 = indexable.arr[x_46];
   const float2 x_52 = mul(x_51, float2x2((x_23[0u] + x_28[0u]), (x_23[1u] + x_28[1u])));
   const tint_symbol_2 tint_symbol_4 = {float4(x_52.x, x_52.y, 0.0f, 1.0f)};
   return tint_symbol_4;

test/bug/tint/749.spvasm.expected.hlsl

@@ -1,6 +1,6 @@
 SKIP: FAILED
 
-../src/writer/hlsl/generator_impl.cc:1726 internal compiler error: unhandled storage class in
+../src/writer/hlsl/generator_impl.cc:1547 internal compiler error: unhandled storage class in
 ********************************************************************
 *  The tint shader compiler has encountered an unexpected error.   *
 *                                                                  *

test/bug/tint/782.wgsl.expected.hlsl

@@ -3,8 +3,12 @@ void unused_entry_point() {
   return;
 }
 
+struct tint_array_wrapper {
+  int arr[2];
+};
+
 void foo() {
-  int tint_symbol[2] = {0, 0};
+  tint_array_wrapper tint_symbol = {{0, 0}};
-  int implict[2] = {0, 0};
+  tint_array_wrapper implict = {{0, 0}};
   implict = tint_symbol;
 }

test/bug/tint/824.wgsl.expected.hlsl

@@ -10,16 +10,22 @@ struct tint_symbol_2 {
   float4 color : TEXCOORD0;
   float4 Position : SV_Position;
 };
+struct tint_array_wrapper {
+  float2 arr[4];
+};
+struct tint_array_wrapper_1 {
+  float4 arr[4];
+};
 
 tint_symbol_2 main(tint_symbol_1 tint_symbol) {
   const uint VertexIndex = tint_symbol.VertexIndex;
   const uint InstanceIndex = tint_symbol.InstanceIndex;
-  const float2 zv[4] = {float2(0.200000003f, 0.200000003f), float2(0.300000012f, 0.300000012f), float2(-0.100000001f, -0.100000001f), float2(1.100000024f, 1.100000024f)};
+  const tint_array_wrapper zv = {{float2(0.200000003f, 0.200000003f), float2(0.300000012f, 0.300000012f), float2(-0.100000001f, -0.100000001f), float2(1.100000024f, 1.100000024f)}};
-  const float z = zv[InstanceIndex].x;
+  const float z = zv.arr[InstanceIndex].x;
   Output output = {float4(0.0f, 0.0f, 0.0f, 0.0f), float4(0.0f, 0.0f, 0.0f, 0.0f)};
   output.Position = float4(0.5f, 0.5f, z, 1.0f);
-  const float4 colors[4] = {float4(1.0f, 0.0f, 0.0f, 1.0f), float4(0.0f, 1.0f, 0.0f, 1.0f), float4(0.0f, 0.0f, 1.0f, 1.0f), float4(1.0f, 1.0f, 1.0f, 1.0f)};
+  const tint_array_wrapper_1 colors = {{float4(1.0f, 0.0f, 0.0f, 1.0f), float4(0.0f, 1.0f, 0.0f, 1.0f), float4(0.0f, 0.0f, 1.0f, 1.0f), float4(1.0f, 1.0f, 1.0f, 1.0f)}};
-  output.color = colors[InstanceIndex];
+  output.color = colors.arr[InstanceIndex];
   const tint_symbol_2 tint_symbol_3 = {output.color, output.Position};
   return tint_symbol_3;
 }

test/intrinsics/gen/atan2/57fb13.wgsl.expected.hlsl

@@ -16,10 +16,12 @@ tint_symbol vertex_main() {
   const tint_symbol tint_symbol_1 = {float4(0.0f, 0.0f, 0.0f, 0.0f)};
   return tint_symbol_1;
 }
+
 void fragment_main() {
   atan2_57fb13();
   return;
 }
+
 [numthreads(1, 1, 1)]
 void compute_main() {
   atan2_57fb13();

test/intrinsics/gen/atan2/a70d0d.wgsl.expected.hlsl

@@ -16,10 +16,12 @@ tint_symbol vertex_main() {
   const tint_symbol tint_symbol_1 = {float4(0.0f, 0.0f, 0.0f, 0.0f)};
   return tint_symbol_1;
 }
+
 void fragment_main() {
   atan2_a70d0d();
   return;
 }
+
 [numthreads(1, 1, 1)]
 void compute_main() {
   atan2_a70d0d();

test/intrinsics/gen/atan2/ae713e.wgsl.expected.hlsl

@@ -16,10 +16,12 @@ tint_symbol vertex_main() {
   const tint_symbol tint_symbol_1 = {float4(0.0f, 0.0f, 0.0f, 0.0f)};
   return tint_symbol_1;
 }
+
 void fragment_main() {
   atan2_ae713e();
   return;
 }
+
 [numthreads(1, 1, 1)]
 void compute_main() {
   atan2_ae713e();

test/intrinsics/gen/fma/26a7a9.wgsl.expected.hlsl

@@ -16,29 +16,31 @@ tint_symbol vertex_main() {
   const tint_symbol tint_symbol_1 = {float4(0.0f, 0.0f, 0.0f, 0.0f)};
   return tint_symbol_1;
 }
+
 void fragment_main() {
   fma_26a7a9();
   return;
 }
+
 [numthreads(1, 1, 1)]
 void compute_main() {
   fma_26a7a9();
   return;
 }
 
-tint_lmSoBx:2:16: error: no matching function for call to 'fma'
+tint_9GH744:2:16: error: no matching function for call to 'fma'
   float2 res = fma(float2(0.0f, 0.0f), float2(0.0f, 0.0f), float2(0.0f, 0.0f));
                ^~~
 note: candidate function not viable: no known conversion from 'vector<float, 2>' to 'vector<double, 2>' for 1st argument
 
 
-tint_lmSoBx:2:16: error: no matching function for call to 'fma'
+tint_9GH744:2:16: error: no matching function for call to 'fma'
   float2 res = fma(float2(0.0f, 0.0f), float2(0.0f, 0.0f), float2(0.0f, 0.0f));
                ^~~
 note: candidate function not viable: no known conversion from 'vector<float, 2>' to 'vector<double, 2>' for 1st argument
 
 
-tint_lmSoBx:2:16: error: no matching function for call to 'fma'
+tint_9GH744:2:16: error: no matching function for call to 'fma'
   float2 res = fma(float2(0.0f, 0.0f), float2(0.0f, 0.0f), float2(0.0f, 0.0f));
                ^~~
 note: candidate function not viable: no known conversion from 'vector<float, 2>' to 'vector<double, 2>' for 1st argument

test/intrinsics/gen/fma/6a3283.wgsl.expected.hlsl

@@ -16,29 +16,31 @@ tint_symbol vertex_main() {
   const tint_symbol tint_symbol_1 = {float4(0.0f, 0.0f, 0.0f, 0.0f)};
   return tint_symbol_1;
 }
+
 void fragment_main() {
   fma_6a3283();
   return;
 }
+
 [numthreads(1, 1, 1)]
 void compute_main() {
   fma_6a3283();
   return;
 }
 
-tint_JBvC4T:2:16: error: no matching function for call to 'fma'
+tint_GZ5kFN:2:16: error: no matching function for call to 'fma'
   float4 res = fma(float4(0.0f, 0.0f, 0.0f, 0.0f), float4(0.0f, 0.0f, 0.0f, 0.0f), float4(0.0f, 0.0f, 0.0f, 0.0f));
                ^~~
 note: candidate function not viable: no known conversion from 'vector<float, 4>' to 'vector<double, 4>' for 1st argument
 
 
-tint_JBvC4T:2:16: error: no matching function for call to 'fma'
+tint_GZ5kFN:2:16: error: no matching function for call to 'fma'
   float4 res = fma(float4(0.0f, 0.0f, 0.0f, 0.0f), float4(0.0f, 0.0f, 0.0f, 0.0f), float4(0.0f, 0.0f, 0.0f, 0.0f));
                ^~~
 note: candidate function not viable: no known conversion from 'vector<float, 4>' to 'vector<double, 4>' for 1st argument
 
 
-tint_JBvC4T:2:16: error: no matching function for call to 'fma'
+tint_GZ5kFN:2:16: error: no matching function for call to 'fma'
   float4 res = fma(float4(0.0f, 0.0f, 0.0f, 0.0f), float4(0.0f, 0.0f, 0.0f, 0.0f), float4(0.0f, 0.0f, 0.0f, 0.0f));
                ^~~
 note: candidate function not viable: no known conversion from 'vector<float, 4>' to 'vector<double, 4>' for 1st argument

test/intrinsics/gen/fma/c10ba3.wgsl.expected.hlsl

@@ -16,29 +16,31 @@ tint_symbol vertex_main() {
   const tint_symbol tint_symbol_1 = {float4(0.0f, 0.0f, 0.0f, 0.0f)};
   return tint_symbol_1;
 }
+
 void fragment_main() {
   fma_c10ba3();
   return;
 }
+
 [numthreads(1, 1, 1)]
 void compute_main() {
   fma_c10ba3();
   return;
 }
 
-tint_kYorD1:2:15: error: no matching function for call to 'fma'
+tint_tqaLcU:2:15: error: no matching function for call to 'fma'
   float res = fma(1.0f, 1.0f, 1.0f);
               ^~~
 note: candidate function not viable: no known conversion from 'float' to 'double' for 1st argument
 
 
-tint_kYorD1:2:15: error: no matching function for call to 'fma'
+tint_tqaLcU:2:15: error: no matching function for call to 'fma'
   float res = fma(1.0f, 1.0f, 1.0f);
               ^~~
 note: candidate function not viable: no known conversion from 'float' to 'double' for 1st argument
 
 
-tint_kYorD1:2:15: error: no matching function for call to 'fma'
+tint_tqaLcU:2:15: error: no matching function for call to 'fma'
   float res = fma(1.0f, 1.0f, 1.0f);
               ^~~
 note: candidate function not viable: no known conversion from 'float' to 'double' for 1st argument

test/intrinsics/gen/fma/e17c5c.wgsl.expected.hlsl

@@ -16,29 +16,31 @@ tint_symbol vertex_main() {
   const tint_symbol tint_symbol_1 = {float4(0.0f, 0.0f, 0.0f, 0.0f)};
   return tint_symbol_1;
 }
+
 void fragment_main() {
   fma_e17c5c();
   return;
 }
+
 [numthreads(1, 1, 1)]
 void compute_main() {
   fma_e17c5c();
   return;
 }
 
-tint_TfNWAd:2:16: error: no matching function for call to 'fma'
+tint_NJUQps:2:16: error: no matching function for call to 'fma'
   float3 res = fma(float3(0.0f, 0.0f, 0.0f), float3(0.0f, 0.0f, 0.0f), float3(0.0f, 0.0f, 0.0f));
                ^~~
 note: candidate function not viable: no known conversion from 'vector<float, 3>' to 'vector<double, 3>' for 1st argument
 
 
-tint_TfNWAd:2:16: error: no matching function for call to 'fma'
+tint_NJUQps:2:16: error: no matching function for call to 'fma'
   float3 res = fma(float3(0.0f, 0.0f, 0.0f), float3(0.0f, 0.0f, 0.0f), float3(0.0f, 0.0f, 0.0f));
                ^~~
 note: candidate function not viable: no known conversion from 'vector<float, 3>' to 'vector<double, 3>' for 1st argument
 
 
-tint_TfNWAd:2:16: error: no matching function for call to 'fma'
+tint_NJUQps:2:16: error: no matching function for call to 'fma'
   float3 res = fma(float3(0.0f, 0.0f, 0.0f), float3(0.0f, 0.0f, 0.0f), float3(0.0f, 0.0f, 0.0f));
                ^~~
 note: candidate function not viable: no known conversion from 'vector<float, 3>' to 'vector<double, 3>' for 1st argument

test/intrinsics/gen/isNan/1280ab.wgsl.expected.hlsl

@@ -16,10 +16,12 @@ tint_symbol vertex_main() {
   const tint_symbol tint_symbol_1 = {float4(0.0f, 0.0f, 0.0f, 0.0f)};
   return tint_symbol_1;
 }
+
 void fragment_main() {
   isNan_1280ab();
   return;
 }
+
 [numthreads(1, 1, 1)]
 void compute_main() {
   isNan_1280ab();

test/intrinsics/gen/isNan/4d280d.wgsl.expected.hlsl

@@ -16,10 +16,12 @@ tint_symbol vertex_main() {
   const tint_symbol tint_symbol_1 = {float4(0.0f, 0.0f, 0.0f, 0.0f)};
   return tint_symbol_1;
 }
+
 void fragment_main() {
   isNan_4d280d();
   return;
 }
+
 [numthreads(1, 1, 1)]
 void compute_main() {
   isNan_4d280d();

test/intrinsics/gen/isNan/67ecd3.wgsl.expected.hlsl

@@ -16,10 +16,12 @@ tint_symbol vertex_main() {
   const tint_symbol tint_symbol_1 = {float4(0.0f, 0.0f, 0.0f, 0.0f)};
   return tint_symbol_1;
 }
+
 void fragment_main() {
   isNan_67ecd3();
   return;
 }
+
 [numthreads(1, 1, 1)]
 void compute_main() {
   isNan_67ecd3();

test/samples/simple_vertex.spvasm.expected.hlsl

@@ -1,6 +1,6 @@
 SKIP: FAILED
 
-../src/writer/hlsl/generator_impl.cc:1726 internal compiler error: unhandled storage class out
+../src/writer/hlsl/generator_impl.cc:1547 internal compiler error: unhandled storage class out
 ********************************************************************
 *  The tint shader compiler has encountered an unexpected error.   *
 *                                                                  *

test/samples/triangle.wgsl.expected.hlsl

@@ -1,4 +1,8 @@
-static const float2 pos[3] = {float2(0.0f, 0.5f), float2(-0.5f, -0.5f), float2(0.5f, -0.5f)};
+struct tint_array_wrapper {
+  float2 arr[3];
+};
+
+static const tint_array_wrapper pos = {{float2(0.0f, 0.5f), float2(-0.5f, -0.5f), float2(0.5f, -0.5f)}};
 
 struct tint_symbol_1 {
   uint VertexIndex : SV_VertexID;
@@ -9,7 +13,7 @@ struct tint_symbol_2 {
 
 tint_symbol_2 vtx_main(tint_symbol_1 tint_symbol) {
   const uint VertexIndex = tint_symbol.VertexIndex;
-  const tint_symbol_2 tint_symbol_4 = {float4(pos[VertexIndex], 0.0f, 1.0f)};
+  const tint_symbol_2 tint_symbol_4 = {float4(pos.arr[VertexIndex], 0.0f, 1.0f)};
   return tint_symbol_4;
 }
 

test/struct/type_constructor.wgsl.expected.hlsl

@@ -13,8 +13,14 @@ struct S3 {
   S1 h;
   S2 i;
 };
+struct tint_array_wrapper {
+  int arr[2];
+};
 struct T {
-  int a[2];
+  tint_array_wrapper a;
+};
+struct tint_array_wrapper_1 {
+  T arr[2];
 };
 
 [numthreads(1, 1, 1)]
@@ -45,14 +51,14 @@ void main() {
   const S1 tint_symbol_11 = {2, x, (x + 1), nested_nonempty.i.f.d};
   const S2 tint_symbol_12 = {1, tint_symbol_11};
   const S1 subexpr_nested_nonempty_with_expr = tint_symbol_12.f;
-  const T aosoa_empty[2] = {{{0, 0}}, {{0, 0}}};
+  const tint_array_wrapper_1 aosoa_empty = {{{{{0, 0}}}, {{{0, 0}}}}};
-  const int tint_symbol_13[2] = {1, 2};
+  const tint_array_wrapper tint_symbol_13 = {{1, 2}};
   const T tint_symbol_14 = {tint_symbol_13};
-  const int tint_symbol_15[2] = {3, 4};
+  const tint_array_wrapper tint_symbol_15 = {{3, 4}};
   const T tint_symbol_16 = {tint_symbol_15};
-  const T aosoa_nonempty[2] = {tint_symbol_14, tint_symbol_16};
+  const tint_array_wrapper_1 aosoa_nonempty = {{tint_symbol_14, tint_symbol_16}};
-  const int tint_symbol_17[2] = {1, (aosoa_nonempty[0].a[0] + 1)};
+  const tint_array_wrapper tint_symbol_17 = {{1, (aosoa_nonempty.arr[0].a.arr[0] + 1)}};
   const T tint_symbol_18 = {tint_symbol_17};
-  const T aosoa_nonempty_with_expr[2] = {tint_symbol_18, aosoa_nonempty[1]};
+  const tint_array_wrapper_1 aosoa_nonempty_with_expr = {{tint_symbol_18, aosoa_nonempty.arr[1]}};
   return;
 }

test/types/function_scope_declarations.wgsl.expected.hlsl

@@ -1,5 +1,8 @@
 struct S {
 };
+struct tint_array_wrapper {
+  float arr[4];
+};
 
 [numthreads(1, 1, 1)]
 void main() {
@@ -19,8 +22,8 @@ void main() {
   const float4 v4f32_let = float4(0.0f, 0.0f, 0.0f, 0.0f);
   float2x3 m2x3_var = float2x3(0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f);
   const float3x4 m3x4_let = float3x4(0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f);
-  float arr_var[4] = {0.0f, 0.0f, 0.0f, 0.0f};
+  tint_array_wrapper arr_var = {{0.0f, 0.0f, 0.0f, 0.0f}};
-  const float arr_let[4] = {0.0f, 0.0f, 0.0f, 0.0f};
+  const tint_array_wrapper arr_let = {{0.0f, 0.0f, 0.0f, 0.0f}};
   S struct_var = {};
   const S struct_let = {};
   return;

test/types/module_scope_let.wgsl.expected.hlsl

@@ -9,7 +9,12 @@ static const int2 v2i32_let = int2(0, 0);
 static const uint3 v3u32_let = uint3(0u, 0u, 0u);
 static const float4 v4f32_let = float4(0.0f, 0.0f, 0.0f, 0.0f);
 static const float3x4 m3x4_let = float3x4(0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f);
-static const float arr_let[4] = {0.0f, 0.0f, 0.0f, 0.0f};
+
+struct tint_array_wrapper {
+  float arr[4];
+};
+
+static const tint_array_wrapper arr_let = {{0.0f, 0.0f, 0.0f, 0.0f}};
 static const S struct_let = {};
 
 [numthreads(1, 1, 1)]

test/types/module_scope_var.wgsl.expected.hlsl

@@ -9,7 +9,12 @@ static int2 v2i32_var;
 static uint3 v3u32_var;
 static float4 v4f32_var;
 static float2x3 m2x3_var;
-static float arr_var[4];
+
+struct tint_array_wrapper {
+  float arr[4];
+};
+
+static tint_array_wrapper arr_var;
 static S struct_var;
 
 [numthreads(1, 1, 1)]
@@ -22,7 +27,7 @@ void main() {
   v3u32_var = uint3(0u, 0u, 0u);
   v4f32_var = float4(0.0f, 0.0f, 0.0f, 0.0f);
   m2x3_var = float2x3(0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f);
-  const float tint_symbol[4] = {0.0f, 0.0f, 0.0f, 0.0f};
+  const tint_array_wrapper tint_symbol = {{0.0f, 0.0f, 0.0f, 0.0f}};
   arr_var = tint_symbol;
   const S tint_symbol_1 = {};
   struct_var = tint_symbol_1;

test/types/module_scope_var_initializers.wgsl.expected.hlsl

@@ -9,7 +9,12 @@ static int2 v2i32_var = int2(0, 0);
 static uint3 v3u32_var = uint3(0u, 0u, 0u);
 static float4 v4f32_var = float4(0.0f, 0.0f, 0.0f, 0.0f);
 static float2x3 m2x3_var = float2x3(0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f);
-static float arr_var[4] = {0.0f, 0.0f, 0.0f, 0.0f};
+
+struct tint_array_wrapper {
+  float arr[4];
+};
+
+static tint_array_wrapper arr_var = {{0.0f, 0.0f, 0.0f, 0.0f}};
 static S struct_var = {};
 
 [numthreads(1, 1, 1)]
@@ -22,7 +27,7 @@ void main() {
   v3u32_var = uint3(0u, 0u, 0u);
   v4f32_var = float4(0.0f, 0.0f, 0.0f, 0.0f);
   m2x3_var = float2x3(0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f);
-  const float tint_symbol[4] = {0.0f, 0.0f, 0.0f, 0.0f};
+  const tint_array_wrapper tint_symbol = {{0.0f, 0.0f, 0.0f, 0.0f}};
   arr_var = tint_symbol;
   const S tint_symbol_1 = {};
   struct_var = tint_symbol_1;

test/types/parameters.wgsl.expected.hlsl

@@ -1,7 +1,10 @@
 struct S {
 };
+struct tint_array_wrapper {
+  float arr[4];
+};
 
-void foo(bool param_bool, int param_i32, uint param_u32, float param_f32, int2 param_v2i32, uint3 param_v3u32, float4 param_v4f32, float2x3 param_m2x3, float param_arr[4], S param_struct, inout float param_ptr_f32, inout float4 param_ptr_vec, inout float param_ptr_arr[4]) {
+void foo(bool param_bool, int param_i32, uint param_u32, float param_f32, int2 param_v2i32, uint3 param_v3u32, float4 param_v4f32, float2x3 param_m2x3, tint_array_wrapper param_arr, S param_struct, inout float param_ptr_f32, inout float4 param_ptr_vec, inout tint_array_wrapper param_ptr_arr) {
 }
 
 [numthreads(1, 1, 1)]

test/types/return_types.wgsl.expected.hlsl

@@ -1,50 +1,53 @@
-SKIP: FAILED
-
-
-
-Validation Failure:
 struct S {
 };
 
 bool ret_bool() {
   return false;
 }
+
 int ret_i32() {
   return 0;
 }
+
 uint ret_u32() {
   return 0u;
 }
+
 float ret_f32() {
   return 0.0f;
 }
+
 int2 ret_v2i32() {
   return int2(0, 0);
 }
+
 uint3 ret_v3u32() {
   return uint3(0u, 0u, 0u);
 }
+
 float4 ret_v4f32() {
   return float4(0.0f, 0.0f, 0.0f, 0.0f);
 }
+
 float2x3 ret_m2x3() {
   return float2x3(0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f);
 }
-float[4] ret_arr() {
+
-  const float tint_symbol[4] = {0.0f, 0.0f, 0.0f, 0.0f};
+struct tint_array_wrapper {
+  float arr[4];
+};
+
+tint_array_wrapper ret_arr() {
+  const tint_array_wrapper tint_symbol = {{0.0f, 0.0f, 0.0f, 0.0f}};
   return tint_symbol;
 }
+
 S ret_struct() {
   const S tint_symbol_1 = {};
   return tint_symbol_1;
 }
+
 [numthreads(1, 1, 1)]
 void main() {
   return;
 }
-
-tint_rjGobz:28:19: error: brackets are not allowed here; to declare an array, place the brackets after the name
-float[4] ret_arr() {
-     ~~~          ^
-                  [4]
-

test/types/struct_members.wgsl.expected.hlsl

@@ -1,5 +1,8 @@
 struct S_inner {
 };
+struct tint_array_wrapper {
+  float arr[4];
+};
 struct S {
   bool member_bool;
   int member_i32;
@@ -9,12 +12,12 @@ struct S {
   uint3 member_v3u32;
   float4 member_v4f32;
   float2x3 member_m2x3;
-  float member_arr[4];
+  tint_array_wrapper member_arr;
   S_inner member_struct;
 };
 
 [numthreads(1, 1, 1)]
 void main() {
-  const S s = {false, 0, 0u, 0.0f, int2(0, 0), uint3(0u, 0u, 0u), float4(0.0f, 0.0f, 0.0f, 0.0f), float2x3(0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f), {0.0f, 0.0f, 0.0f, 0.0f}, {}};
+  const S s = {false, 0, 0u, 0.0f, int2(0, 0), uint3(0u, 0u, 0u), float4(0.0f, 0.0f, 0.0f, 0.0f), float2x3(0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f), {{0.0f, 0.0f, 0.0f, 0.0f}}, {}};
   return;
 }

test/var/inferred/function-let.wgsl.expected.hlsl

@@ -1,29 +1,32 @@
-SKIP: FAILED
-
-
-
-Validation Failure:
 struct MyStruct {
   float f1;
 };
+struct tint_array_wrapper {
+  float arr[10];
+};
 
 int ret_i32() {
   return 1;
 }
+
 uint ret_u32() {
   return 1u;
 }
+
 float ret_f32() {
   return 1.0f;
 }
+
 MyStruct ret_MyStruct() {
   const MyStruct tint_symbol_1 = {0.0f};
   return tint_symbol_1;
 }
-float[10] ret_MyArray() {
+
-  const float tint_symbol_2[10] = {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f};
+tint_array_wrapper ret_MyArray() {
+  const tint_array_wrapper tint_symbol_2 = {{0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f}};
   return tint_symbol_2;
 }
+
 void let_decls() {
   const int v1 = 1;
   const uint v2 = 1u;
@@ -33,13 +36,13 @@ void let_decls() {
   const float3 v6 = float3(1.0f, 1.0f, 1.0f);
   const float3x3 v7 = float3x3(v6, v6, v6);
   const MyStruct v8 = {1.0f};
-  const float v9[10] = {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f};
+  const tint_array_wrapper v9 = {{0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f}};
   const int v10 = ret_i32();
   const uint v11 = ret_u32();
   const float v12 = ret_f32();
   const MyStruct v13 = ret_MyStruct();
   const MyStruct v14 = ret_MyStruct();
-  const float v15[10] = ret_MyArray();
+  const tint_array_wrapper v15 = ret_MyArray();
 }
 
 struct tint_symbol {
@@ -50,9 +53,3 @@ tint_symbol main() {
   const tint_symbol tint_symbol_3 = {float4(0.0f, 0.0f, 0.0f, 0.0f)};
   return tint_symbol_3;
 }
-
-tint_1dFgAw:18:24: error: brackets are not allowed here; to declare an array, place the brackets after the name
-float[10] ret_MyArray() {
-     ~~~~              ^
-                       [10]
-

test/var/inferred/function-var.wgsl.expected.hlsl

@@ -1,29 +1,32 @@
-SKIP: FAILED
-
-
-
-Validation Failure:
 struct MyStruct {
   float f1;
 };
+struct tint_array_wrapper {
+  float arr[10];
+};
 
 int ret_i32() {
   return 1;
 }
+
 uint ret_u32() {
   return 1u;
 }
+
 float ret_f32() {
   return 1.0f;
 }
+
 MyStruct ret_MyStruct() {
   const MyStruct tint_symbol_1 = {0.0f};
   return tint_symbol_1;
 }
-float[10] ret_MyArray() {
+
-  const float tint_symbol_2[10] = {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f};
+tint_array_wrapper ret_MyArray() {
+  const tint_array_wrapper tint_symbol_2 = {{0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f}};
   return tint_symbol_2;
 }
+
 void var_decls() {
   int v1 = 1;
   uint v2 = 1u;
@@ -33,13 +36,13 @@ void var_decls() {
   float3 v6 = float3(1.0f, 1.0f, 1.0f);
   float3x3 v7 = float3x3(v6, v6, v6);
   MyStruct v8 = {1.0f};
-  float v9[10] = {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f};
+  tint_array_wrapper v9 = {{0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f}};
   int v10 = ret_i32();
   uint v11 = ret_u32();
   float v12 = ret_f32();
   MyStruct v13 = ret_MyStruct();
   MyStruct v14 = ret_MyStruct();
-  float v15[10] = ret_MyArray();
+  tint_array_wrapper v15 = ret_MyArray();
 }
 
 struct tint_symbol {
@@ -50,9 +53,3 @@ tint_symbol main() {
   const tint_symbol tint_symbol_3 = {float4(0.0f, 0.0f, 0.0f, 0.0f)};
   return tint_symbol_3;
 }
-
-tint_W6AplI:18:24: error: brackets are not allowed here; to declare an array, place the brackets after the name
-float[10] ret_MyArray() {
-     ~~~~              ^
-                       [10]
-

test/var/inferred/global-let.wgsl.expected.hlsl

@@ -1,6 +1,9 @@
 struct MyStruct {
   float f1;
 };
+struct tint_array_wrapper {
+  float arr[10];
+};
 
 static const int v1 = 1;
 static const uint v2 = 1u;
@@ -10,7 +13,7 @@ static const uint3 v5 = uint3(1u, 1u, 1u);
 static const float3 v6 = float3(1.0f, 1.0f, 1.0f);
 static const float3x3 v7 = float3x3(float3(1.0f, 1.0f, 1.0f), float3(1.0f, 1.0f, 1.0f), float3(1.0f, 1.0f, 1.0f));
 static const MyStruct v8 = {0.0f};
-static const float v9[10] = {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f};
+static const tint_array_wrapper v9 = {{0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f}};
 
 struct tint_symbol {
   float4 value : SV_Target0;