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 %func_ "func("
OpName %ret "ret"
OpName %i "i"
OpName %buf0 "buf0"
OpMemberName %buf0 0 "one"
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
%10 = OpTypeFunction %void
%int = OpTypeInt 32 1
%12 = OpTypeFunction %int
%_ptr_Function_int = OpTypePointer Function %int
%int_0 = OpConstant %int 0
%int_3 = OpConstant %int 3
%int_1 = OpConstant %int 1
%bool = OpTypeBool
%buf0 = OpTypeStruct %int
%_ptr_Uniform_buf0 = OpTypePointer Uniform %buf0
%_ = OpVariable %_ptr_Uniform_buf0 Uniform
%_ptr_Uniform_int = OpTypePointer Uniform %int
%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
%float_1 = OpConstant %float 1
%float_0 = OpConstant %float 0
%26 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1
%27 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
%main = OpFunction %void None %10
%28 = OpLabel
%29 = OpFunctionCall %int %func_
%30 = OpIEqual %bool %29 %int_2
OpSelectionMerge %31 None
OpBranchConditional %30 %32 %33
%32 = OpLabel
OpStore %_GLF_color %26
OpBranch %31
%33 = OpLabel
OpStore %_GLF_color %27
OpBranch %31
%31 = OpLabel
OpReturn
OpFunctionEnd
%func_ = OpFunction %int None %12
%34 = OpLabel
%ret = OpVariable %_ptr_Function_int Function
%i = OpVariable %_ptr_Function_int Function
OpStore %ret %int_0
OpStore %i %int_3
OpBranch %35
%35 = OpLabel
OpLoopMerge %36 %37 None
OpBranch %38
%38 = OpLabel
%39 = OpLoad %int %i
%40 = OpLoad %int %i
%41 = OpBitwiseAnd %int %40 %int_1
%42 = OpSGreaterThan %bool %39 %41
OpBranchConditional %42 %43 %36
%43 = OpLabel
%44 = OpLoad %int %ret
%45 = OpIAdd %int %44 %int_1
OpStore %ret %45
OpBranch %37
%37 = OpLabel
%46 = OpAccessChain %_ptr_Uniform_int %_ %int_0
%47 = OpLoad %int %46
%48 = OpLoad %int %i
%49 = OpISub %int %48 %47
OpStore %i %49
OpBranch %35
%36 = OpLabel
%50 = OpLoad %int %ret
OpReturnValue %50
OpFunctionEnd