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" %gl_FragCoord %_GLF_color
OpExecutionMode %main OriginUpperLeft
OpSource ESSL 310
OpName %main "main"
OpName %f_ "f("
OpName %buf0 "buf0"
OpMemberName %buf0 0 "injectionSwitch"
OpName %_ ""
OpName %gl_FragCoord "gl_FragCoord"
OpName %_GLF_color "_GLF_color"
OpMemberDecorate %buf0 0 Offset 0
OpDecorate %buf0 Block
OpDecorate %_ DescriptorSet 0
OpDecorate %_ Binding 0
OpDecorate %gl_FragCoord BuiltIn FragCoord
OpDecorate %_GLF_color Location 0
%void = OpTypeVoid
%9 = OpTypeFunction %void
%float = OpTypeFloat 32
%float_1 = OpConstant %float 1
%v2float = OpTypeVector %float 2
%buf0 = OpTypeStruct %v2float
%_ptr_Uniform_buf0 = OpTypePointer Uniform %buf0
%_ = OpVariable %_ptr_Uniform_buf0 Uniform
%int = OpTypeInt 32 1
%int_0 = OpConstant %int 0
%uint = OpTypeInt 32 0
%uint_1 = OpConstant %uint 1
%_ptr_Uniform_float = OpTypePointer Uniform %float
%bool = OpTypeBool
%v4float = OpTypeVector %float 4
%_ptr_Input_v4float = OpTypePointer Input %v4float
%gl_FragCoord = OpVariable %_ptr_Input_v4float Input
%_ptr_Input_float = OpTypePointer Input %float
%float_0 = OpConstant %float 0
%false = OpConstantFalse %bool
%_ptr_Output_v4float = OpTypePointer Output %v4float
%_GLF_color = OpVariable %_ptr_Output_v4float Output
%26 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1
%main = OpFunction %void None %9
%27 = OpLabel
%28 = OpFunctionCall %void %f_
OpStore %_GLF_color %26
OpReturn
OpFunctionEnd
%f_ = OpFunction %void None %9
%29 = OpLabel
OpBranch %30
%30 = OpLabel
OpLoopMerge %31 %32 None
OpBranch %33
%33 = OpLabel
%34 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %uint_1
%35 = OpLoad %float %34
%36 = OpFOrdGreaterThan %bool %float_1 %35
OpSelectionMerge %37 None
OpBranchConditional %36 %38 %37
%38 = OpLabel
%39 = OpAccessChain %_ptr_Input_float %gl_FragCoord %uint_1
%40 = OpLoad %float %39
%41 = OpFOrdLessThan %bool %40 %float_0
OpSelectionMerge %42 None
OpBranchConditional %41 %43 %32
%43 = OpLabel
OpBranch %32
%42 = OpLabel
OpBranch %32
%32 = OpLabel
OpBranchConditional %false %30 %31
%37 = OpLabel
OpKill
%31 = OpLabel
OpReturn
OpFunctionEnd