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_i1_ "func(i1;"
OpName %x "x"
OpName %a "a"
OpName %b "b"
OpName %buf0 "buf0"
OpMemberName %buf0 0 "zero"
OpName %_ ""
OpName %param "param"
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
%12 = OpTypeFunction %void
%int = OpTypeInt 32 1
%_ptr_Function_int = OpTypePointer Function %int
%15 = OpTypeFunction %int %_ptr_Function_int
%int_10 = OpConstant %int 10
%bool = OpTypeBool
%int_0 = OpConstant %int 0
%buf0 = OpTypeStruct %int
%_ptr_Uniform_buf0 = OpTypePointer Uniform %buf0
%_ = OpVariable %_ptr_Uniform_buf0 Uniform
%_ptr_Uniform_int = OpTypePointer Uniform %int
%int_1 = OpConstant %int 1
%int_4 = OpConstant %int 4
%int_3 = OpConstant %int 3
%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
%29 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1
%30 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
%main = OpFunction %void None %12
%31 = OpLabel
%a = OpVariable %_ptr_Function_int Function
%b = OpVariable %_ptr_Function_int Function
%param = OpVariable %_ptr_Function_int Function
OpStore %a %int_0
%32 = OpAccessChain %_ptr_Uniform_int %_ %int_0
%33 = OpLoad %int %32
OpStore %b %33
OpBranch %34
%34 = OpLabel
%35 = OpPhi %int %33 %31 %36 %34
OpStore %param %35
%37 = OpFunctionCall %int %func_i1_ %param
OpStore %a %37
%36 = OpIAdd %int %35 %int_1
OpStore %b %36
%38 = OpSLessThan %bool %36 %int_4
OpLoopMerge %39 %34 None
OpBranchConditional %38 %34 %39
%39 = OpLabel
%40 = OpIEqual %bool %37 %int_3
OpSelectionMerge %41 None
OpBranchConditional %40 %42 %43
%42 = OpLabel
OpStore %_GLF_color %29
OpBranch %41
%43 = OpLabel
OpStore %_GLF_color %30
OpBranch %41
%41 = OpLabel
OpReturn
OpFunctionEnd
%func_i1_ = OpFunction %int None %15
%x = OpFunctionParameter %_ptr_Function_int
%44 = OpLabel
%45 = OpLoad %int %x
%46 = OpIEqual %bool %45 %int_10
OpSelectionMerge %47 None
OpBranchConditional %46 %48 %47
%48 = OpLabel
OpKill
%47 = OpLabel
%49 = OpLoad %int %x
OpReturnValue %49
OpFunctionEnd