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 320
OpName %main "main"
OpName %buf0 "buf0"
OpMemberName %buf0 0 "_GLF_uniform_int_values"
OpName %_ ""
OpName %_GLF_color "_GLF_color"
OpDecorate %_arr_int_uint_4 ArrayStride 16
OpMemberDecorate %buf0 0 Offset 0
OpDecorate %buf0 Block
OpDecorate %_ DescriptorSet 0
OpDecorate %_ Binding 0
OpDecorate %_GLF_color Location 0
%void = OpTypeVoid
%8 = OpTypeFunction %void
%int = OpTypeInt 32 1
%int_1 = OpConstant %int 1
%uint = OpTypeInt 32 0
%uint_4 = OpConstant %uint 4
%_arr_int_uint_4 = OpTypeArray %int %uint_4
%buf0 = OpTypeStruct %_arr_int_uint_4
%_ptr_Uniform_buf0 = OpTypePointer Uniform %buf0
%_ = OpVariable %_ptr_Uniform_buf0 Uniform
%int_0 = OpConstant %int 0
%int_3 = OpConstant %int 3
%_ptr_Uniform_int = OpTypePointer Uniform %int
%bool = OpTypeBool
%int_2 = OpConstant %int 2
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%_ptr_Output_v4float = OpTypePointer Output %v4float
%_GLF_color = OpVariable %_ptr_Output_v4float Output
%main = OpFunction %void None %8
%22 = OpLabel
%23 = OpBitReverse %int %int_1
%24 = OpExtInst %int %1 SMin %int_1 %23
%25 = OpAccessChain %_ptr_Uniform_int %_ %int_0 %int_3
%26 = OpLoad %int %25
OpBranch %27
%27 = OpLabel
%28 = OpPhi %int %26 %22 %29 %30
%31 = OpPhi %int %int_1 %22 %32 %30
%33 = OpISub %int %24 %int_1
%34 = OpSLessThanEqual %bool %31 %33
OpLoopMerge %35 %30 None
OpBranchConditional %34 %36 %35
%36 = OpLabel
%29 = OpIAdd %int %28 %31
%37 = OpAccessChain %_ptr_Uniform_int %_ %int_0 %int_0
%38 = OpLoad %int %37
%39 = OpIEqual %bool %38 %int_1
OpSelectionMerge %40 None
OpBranchConditional %39 %41 %40
%41 = OpLabel
OpBranch %35
%40 = OpLabel
OpBranch %30
%30 = OpLabel
%32 = OpIAdd %int %31 %int_1
OpBranch %27
%35 = OpLabel
%42 = OpPhi %int %28 %27 %29 %41
%43 = OpAccessChain %_ptr_Uniform_int %_ %int_0 %int_2
%44 = OpLoad %int %43
%45 = OpIEqual %bool %42 %44
OpSelectionMerge %46 None
OpBranchConditional %45 %47 %48
%47 = OpLabel
%49 = OpAccessChain %_ptr_Uniform_int %_ %int_0 %int_0
%50 = OpLoad %int %49
%51 = OpConvertSToF %float %50
%52 = OpAccessChain %_ptr_Uniform_int %_ %int_0 %int_1
%53 = OpLoad %int %52
%54 = OpConvertSToF %float %53
%55 = OpCompositeConstruct %v4float %51 %54 %54 %51
OpStore %_GLF_color %55
OpBranch %46
%48 = OpLabel
%56 = OpAccessChain %_ptr_Uniform_int %_ %int_0 %int_1
%57 = OpLoad %int %56
%58 = OpConvertSToF %float %57
%59 = OpCompositeConstruct %v4float %58 %58 %58 %58
OpStore %_GLF_color %59
OpBranch %46
%46 = OpLabel
OpReturn
OpFunctionEnd