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" %_GLF_color
OpExecutionMode %main OriginUpperLeft
OpSource ESSL 310
OpName %main "main"
OpName %v "v"
OpName %buf0 "buf0"
OpMemberName %buf0 0 "quarter"
OpName %_ ""
OpName %_GLF_color "_GLF_color"
OpMemberDecorate %buf0 0 Offset 0
OpDecorate %buf0 Block
OpDecorate %_ DescriptorSet 0
OpDecorate %_ Binding 0
OpDecorate %_GLF_color Location 0
%void = OpTypeVoid
%8 = OpTypeFunction %void
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%_ptr_Function_v4float = OpTypePointer Function %v4float
%float_424_113007 = OpConstant %float 424.113007
%buf0 = OpTypeStruct %float
%_ptr_Uniform_buf0 = OpTypePointer Uniform %buf0
%_ = OpVariable %_ptr_Uniform_buf0 Uniform
%int = OpTypeInt 32 1
%int_0 = OpConstant %int 0
%_ptr_Uniform_float = OpTypePointer Uniform %float
%float_1_29999995 = OpConstant %float 1.29999995
%float_19_6200008 = OpConstant %float 19.6200008
%float_425 = OpConstant %float 425
%float_1 = OpConstant %float 1
%float_2 = OpConstant %float 2
%float_20 = OpConstant %float 20
%23 = OpConstantComposite %v4float %float_425 %float_1 %float_2 %float_20
%bool = OpTypeBool
%v4bool = OpTypeVector %bool 4
%_ptr_Output_v4float = OpTypePointer Output %v4float
%_GLF_color = OpVariable %_ptr_Output_v4float Output
%float_0 = OpConstant %float 0
%28 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1
%29 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
%main = OpFunction %void None %8
%30 = OpLabel
%v = OpVariable %_ptr_Function_v4float Function
%31 = OpAccessChain %_ptr_Uniform_float %_ %int_0
%32 = OpLoad %float %31
%33 = OpCompositeConstruct %v4float %float_424_113007 %32 %float_1_29999995 %float_19_6200008
%34 = OpExtInst %v4float %1 Ceil %33
OpStore %v %34
%35 = OpLoad %v4float %v
%36 = OpFOrdEqual %v4bool %35 %23
%37 = OpAll %bool %36
OpSelectionMerge %38 None
OpBranchConditional %37 %39 %40
%39 = OpLabel
OpStore %_GLF_color %28
OpBranch %38
%40 = OpLabel
OpStore %_GLF_color %29
OpBranch %38
%38 = OpLabel
OpReturn
OpFunctionEnd