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" %color
OpExecutionMode %main OriginUpperLeft
OpSource ESSL 310
OpName %main "main"
OpName %drawShape_vf2_ "drawShape(vf2;"
OpName %pos "pos"
OpName %c3 "c3"
OpName %param "param"
OpName %color "color"
OpDecorate %color Location 0
%void = OpTypeVoid
%9 = OpTypeFunction %void
%float = OpTypeFloat 32
%v2float = OpTypeVector %float 2
%_ptr_Function_v2float = OpTypePointer Function %v2float
%v3float = OpTypeVector %float 3
%14 = OpTypeFunction %v3float %_ptr_Function_v2float
%bool = OpTypeBool
%_ptr_Function_bool = OpTypePointer Function %bool
%uint = OpTypeInt 32 0
%uint_1 = OpConstant %uint 1
%_ptr_Function_float = OpTypePointer Function %float
%float_1 = OpConstant %float 1
%21 = OpConstantComposite %v3float %float_1 %float_1 %float_1
%22 = OpConstantComposite %v2float %float_1 %float_1
%v4float = OpTypeVector %float 4
%_ptr_Output_v4float = OpTypePointer Output %v4float
%color = OpVariable %_ptr_Output_v4float Output
%float_0 = OpConstant %float 0
%26 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1
%27 = OpUndef %bool
%main = OpFunction %void None %9
%28 = OpLabel
%param = OpVariable %_ptr_Function_v2float Function
OpStore %param %22
%29 = OpFunctionCall %v3float %drawShape_vf2_ %param
OpStore %color %26
OpReturn
OpFunctionEnd
%drawShape_vf2_ = OpFunction %v3float None %14
%pos = OpFunctionParameter %_ptr_Function_v2float
%30 = OpLabel
%c3 = OpVariable %_ptr_Function_bool Function
%31 = OpAccessChain %_ptr_Function_float %pos %uint_1
%32 = OpLoad %float %31
%33 = OpFOrdLessThan %bool %32 %float_1
OpStore %c3 %33
OpBranch %34
%34 = OpLabel
%35 = OpPhi %bool %33 %30 %27 %36
OpLoopMerge %37 %36 None
OpBranchConditional %35 %38 %37
%38 = OpLabel
OpReturnValue %21
%36 = OpLabel
OpBranch %34
%37 = OpLabel
OpReturnValue %21
OpFunctionEnd