Alastair Donaldson f7e73d4ee3 Add tests derived from VK-GL-CTS
This adds SPIR-V assembly and WGSL tests derived from VK-GL-CTS commit
571256871c2e2f03995373e1e4a02958d8cd8cf5. The following procedure was
followed:

- Those .amber files in VK-GL-CTS wholly owned by Google were
  identified

- All GLSL and SPIR-V shaders were extracted from the Amber files and
  converted into SPIR-V binaries

- The compact-ids pass of spirv-opt was applied to each binary

- Duplicate binaries were removed

- spirv-opt -O was used to obtain an optimized version of each remaining
  binary, with duplicates discarded

- Binaries that failed validation using spirv-val with target
  environment SPIR-V 1.3 were discarded

- Those binaries that tint could not successfully convert into WGSL were
  put aside for further investigation

- SPIR-V assembly versions of the remaining binaries are included in
  this CL

- test-runner with -generate-expected and -generate-skip was used to
  generate expected .spvasm, .msl, .hlsl and .wgsl outputs for these
  SPIR-V assembly tests

- Each successfully-generated .expected.wgsl is included in this CL
  again, as a WGLSL test

- test-runner with -generate-expected and -generate-skip was used again,
  to generate expected outputs for these WGSL tests

Change-Id: Ibe9baf2729cf97e0b633db9a426f53362a5de540
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/58842
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
2021-07-23 13:10:12 +00:00

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OpCapability Shader
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %main "main" %color_out %gl_FragCoord
OpExecutionMode %main OriginUpperLeft
OpSource GLSL 430
OpName %main "main"
OpName %color_out "color_out"
OpName %texture "texture"
OpName %gl_FragCoord "gl_FragCoord"
OpDecorate %color_out Location 0
OpDecorate %texture DescriptorSet 0
OpDecorate %texture Binding 0
OpDecorate %texture NonWritable
OpDecorate %gl_FragCoord BuiltIn FragCoord
%void = OpTypeVoid
%7 = OpTypeFunction %void
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%_ptr_Output_v4float = OpTypePointer Output %v4float
%color_out = OpVariable %_ptr_Output_v4float Output
%11 = OpTypeImage %float 2D 0 0 0 2 Rgba8
%_ptr_UniformConstant_11 = OpTypePointer UniformConstant %11
%texture = OpVariable %_ptr_UniformConstant_11 UniformConstant
%_ptr_Input_v4float = OpTypePointer Input %v4float
%gl_FragCoord = OpVariable %_ptr_Input_v4float Input
%v2float = OpTypeVector %float 2
%int = OpTypeInt 32 1
%v2int = OpTypeVector %int 2
%main = OpFunction %void None %7
%17 = OpLabel
%18 = OpLoad %11 %texture
%19 = OpLoad %v4float %gl_FragCoord
%20 = OpVectorShuffle %v2float %19 %19 0 1
%21 = OpConvertFToS %v2int %20
%22 = OpImageRead %v4float %18 %21
OpStore %color_out %22
OpReturn
OpFunctionEnd