test: Add missing stage attributes to IO test

Change-Id: I7f69de9c3b6fe226e0688f56a8d076dc6ec4a81f
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/55281
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>

test/shader_io/shared_struct_helper_function.wgsl

@@ -7,10 +7,12 @@ fn foo(x : f32) -> VertexOutput {
   return VertexOutput(vec4<f32>(x, x, x, 1.0), 42);
 }
 
+[[stage(vertex)]]
 fn vert_main1() -> VertexOutput {
   return foo(0.5);
 }
 
+[[stage(vertex)]]
 fn vert_main2() -> VertexOutput {
   return foo(0.25);
 }

test/shader_io/shared_struct_helper_function.wgsl.expected.hlsl

@@ -1,22 +1,31 @@
-[numthreads(1, 1, 1)]
-void unused_entry_point() {
-  return;
-}
-
 struct VertexOutput {
   float4 pos;
   int loc0;
 };
 
 VertexOutput foo(float x) {
-  const VertexOutput tint_symbol = {float4(x, x, x, 1.0f), 42};
+  const VertexOutput tint_symbol_4 = {float4(x, x, x, 1.0f), 42};
-  return tint_symbol;
+  return tint_symbol_4;
 }
 
-VertexOutput vert_main1() {
+struct tint_symbol {
-  return foo(0.5f);
+  int loc0 : TEXCOORD0;
+  float4 pos : SV_Position;
+};
+
+tint_symbol vert_main1() {
+  const VertexOutput tint_symbol_1 = foo(0.5f);
+  const tint_symbol tint_symbol_5 = {tint_symbol_1.loc0, tint_symbol_1.pos};
+  return tint_symbol_5;
 }
 
-VertexOutput vert_main2() {
+struct tint_symbol_2 {
-  return foo(0.25f);
+  int loc0 : TEXCOORD0;
+  float4 pos : SV_Position;
+};
+
+tint_symbol_2 vert_main2() {
+  const VertexOutput tint_symbol_3 = foo(0.25f);
+  const tint_symbol_2 tint_symbol_6 = {tint_symbol_3.loc0, tint_symbol_3.pos};
+  return tint_symbol_6;
 }

test/shader_io/shared_struct_helper_function.wgsl.expected.msl

@@ -5,17 +5,29 @@ struct VertexOutput {
   float4 pos;
   int loc0;
 };
+struct tint_symbol {
+  int loc0 [[user(locn0)]];
+  float4 pos [[position]];
+};
+struct tint_symbol_2 {
+  int loc0 [[user(locn0)]];
+  float4 pos [[position]];
+};
 
 VertexOutput foo(float x) {
-  VertexOutput const tint_symbol = {.pos=float4(x, x, x, 1.0f), .loc0=42};
+  VertexOutput const tint_symbol_4 = {.pos=float4(x, x, x, 1.0f), .loc0=42};
-  return tint_symbol;
+  return tint_symbol_4;
 }
 
-VertexOutput vert_main1() {
+vertex tint_symbol vert_main1() {
-  return foo(0.5f);
+  VertexOutput const tint_symbol_1 = foo(0.5f);
+  tint_symbol const tint_symbol_5 = {.loc0=tint_symbol_1.loc0, .pos=tint_symbol_1.pos};
+  return tint_symbol_5;
 }
 
-VertexOutput vert_main2() {
+vertex tint_symbol_2 vert_main2() {
-  return foo(0.25f);
+  VertexOutput const tint_symbol_3 = foo(0.25f);
+  tint_symbol_2 const tint_symbol_6 = {.loc0=tint_symbol_3.loc0, .pos=tint_symbol_3.pos};
+  return tint_symbol_6;
 }
 

test/shader_io/shared_struct_helper_function.wgsl.expected.spvasm

@@ -1,52 +1,94 @@
 ; SPIR-V
 ; Version: 1.3
 ; Generator: Google Tint Compiler; 0
-; Bound: 26
+; Bound: 47
 ; Schema: 0
                OpCapability Shader
                OpMemoryModel Logical GLSL450
-               OpEntryPoint GLCompute %unused_entry_point "unused_entry_point"
+               OpEntryPoint Vertex %vert_main1 "vert_main1" %tint_pointsize %tint_symbol_1 %tint_symbol_2
-               OpExecutionMode %unused_entry_point LocalSize 1 1 1
+               OpEntryPoint Vertex %vert_main2 "vert_main2" %tint_pointsize %tint_symbol_5 %tint_symbol_6
-               OpName %unused_entry_point "unused_entry_point"
+               OpName %tint_pointsize "tint_pointsize"
+               OpName %tint_symbol_1 "tint_symbol_1"
+               OpName %tint_symbol_2 "tint_symbol_2"
+               OpName %tint_symbol_5 "tint_symbol_5"
+               OpName %tint_symbol_6 "tint_symbol_6"
                OpName %VertexOutput "VertexOutput"
                OpMemberName %VertexOutput 0 "pos"
                OpMemberName %VertexOutput 1 "loc0"
                OpName %foo "foo"
                OpName %x "x"
+               OpName %tint_symbol_3 "tint_symbol_3"
+               OpName %tint_symbol "tint_symbol"
                OpName %vert_main1 "vert_main1"
+               OpName %tint_symbol_7 "tint_symbol_7"
+               OpName %tint_symbol_4 "tint_symbol_4"
                OpName %vert_main2 "vert_main2"
+               OpDecorate %tint_pointsize BuiltIn PointSize
+               OpDecorate %tint_symbol_1 BuiltIn Position
+               OpDecorate %tint_symbol_2 Location 0
+               OpDecorate %tint_symbol_5 BuiltIn Position
+               OpDecorate %tint_symbol_6 Location 0
                OpMemberDecorate %VertexOutput 0 Offset 0
                OpMemberDecorate %VertexOutput 1 Offset 16
-       %void = OpTypeVoid
-          %1 = OpTypeFunction %void
       %float = OpTypeFloat 32
+%_ptr_Output_float = OpTypePointer Output %float
+          %4 = OpConstantNull %float
+%tint_pointsize = OpVariable %_ptr_Output_float Output %4
     %v4float = OpTypeVector %float 4
+%_ptr_Output_v4float = OpTypePointer Output %v4float
+          %8 = OpConstantNull %v4float
+%tint_symbol_1 = OpVariable %_ptr_Output_v4float Output %8
         %int = OpTypeInt 32 1
+%_ptr_Output_int = OpTypePointer Output %int
+         %12 = OpConstantNull %int
+%tint_symbol_2 = OpVariable %_ptr_Output_int Output %12
+%tint_symbol_5 = OpVariable %_ptr_Output_v4float Output %8
+%tint_symbol_6 = OpVariable %_ptr_Output_int Output %12
 %VertexOutput = OpTypeStruct %v4float %int
-          %5 = OpTypeFunction %VertexOutput %float
+         %15 = OpTypeFunction %VertexOutput %float
     %float_1 = OpConstant %float 1
      %int_42 = OpConstant %int 42
-         %17 = OpTypeFunction %VertexOutput
+       %void = OpTypeVoid
+         %24 = OpTypeFunction %void %VertexOutput
+         %31 = OpTypeFunction %void
   %float_0_5 = OpConstant %float 0.5
  %float_0_25 = OpConstant %float 0.25
-%unused_entry_point = OpFunction %void None %1
+        %foo = OpFunction %VertexOutput None %15
-          %4 = OpLabel
+          %x = OpFunctionParameter %float
+         %19 = OpLabel
+         %21 = OpCompositeConstruct %v4float %x %x %x %float_1
+         %23 = OpCompositeConstruct %VertexOutput %21 %int_42
+               OpReturnValue %23
+               OpFunctionEnd
+%tint_symbol_3 = OpFunction %void None %24
+%tint_symbol = OpFunctionParameter %VertexOutput
+         %28 = OpLabel
+         %29 = OpCompositeExtract %v4float %tint_symbol 0
+               OpStore %tint_symbol_1 %29
+         %30 = OpCompositeExtract %int %tint_symbol 1
+               OpStore %tint_symbol_2 %30
                OpReturn
                OpFunctionEnd
-        %foo = OpFunction %VertexOutput None %5
+ %vert_main1 = OpFunction %void None %31
-          %x = OpFunctionParameter %float
+         %33 = OpLabel
-         %12 = OpLabel
+               OpStore %tint_pointsize %float_1
-         %14 = OpCompositeConstruct %v4float %x %x %x %float_1
+         %35 = OpFunctionCall %VertexOutput %foo %float_0_5
-         %16 = OpCompositeConstruct %VertexOutput %14 %int_42
+         %34 = OpFunctionCall %void %tint_symbol_3 %35
-               OpReturnValue %16
+               OpReturn
                OpFunctionEnd
- %vert_main1 = OpFunction %VertexOutput None %17
+%tint_symbol_7 = OpFunction %void None %24
-         %19 = OpLabel
+%tint_symbol_4 = OpFunctionParameter %VertexOutput
-         %20 = OpFunctionCall %VertexOutput %foo %float_0_5
+         %39 = OpLabel
-               OpReturnValue %20
+         %40 = OpCompositeExtract %v4float %tint_symbol_4 0
+               OpStore %tint_symbol_5 %40
+         %41 = OpCompositeExtract %int %tint_symbol_4 1
+               OpStore %tint_symbol_6 %41
+               OpReturn
                OpFunctionEnd
- %vert_main2 = OpFunction %VertexOutput None %17
+ %vert_main2 = OpFunction %void None %31
-         %23 = OpLabel
+         %43 = OpLabel
-         %24 = OpFunctionCall %VertexOutput %foo %float_0_25
+               OpStore %tint_pointsize %float_1
-               OpReturnValue %24
+         %45 = OpFunctionCall %VertexOutput %foo %float_0_25
+         %44 = OpFunctionCall %void %tint_symbol_7 %45
+               OpReturn
                OpFunctionEnd

test/shader_io/shared_struct_helper_function.wgsl.expected.wgsl

@@ -9,10 +9,12 @@ fn foo(x : f32) -> VertexOutput {
   return VertexOutput(vec4<f32>(x, x, x, 1.0), 42);
 }
 
+[[stage(vertex)]]
 fn vert_main1() -> VertexOutput {
   return foo(0.5);
 }
 
+[[stage(vertex)]]
 fn vert_main2() -> VertexOutput {
   return foo(0.25);
 }