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 %a "a"
OpName %i "i"
OpName %buf0 "buf0"
OpMemberName %buf0 0 "sequence"
OpName %_ ""
OpName %sum "sum"
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
%v4int = OpTypeVector %int 4
%_ptr_Function_v4int = OpTypePointer Function %v4int
%int_0 = OpConstant %int 0
%15 = OpConstantComposite %v4int %int_0 %int_0 %int_0 %int_0
%_ptr_Function_int = OpTypePointer Function %int
%buf0 = OpTypeStruct %v4int
%_ptr_Uniform_buf0 = OpTypePointer Uniform %buf0
%_ = OpVariable %_ptr_Uniform_buf0 Uniform
%uint = OpTypeInt 32 0
%uint_3 = OpConstant %uint 3
%_ptr_Uniform_int = OpTypePointer Uniform %int
%int_1 = OpConstant %int 1
%bool = OpTypeBool
%uint_0 = OpConstant %uint 0
%int_5 = OpConstant %int 5
%uint_1 = OpConstant %uint 1
%uint_2 = OpConstant %uint 2
%int_10 = OpConstant %int 10
%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
%33 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1
%34 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
%main = OpFunction %void None %10
%35 = OpLabel
%a = OpVariable %_ptr_Function_v4int Function
%i = OpVariable %_ptr_Function_int Function
%sum = OpVariable %_ptr_Function_int Function
OpStore %a %15
OpStore %i %int_0
OpBranch %36
%36 = OpLabel
OpLoopMerge %37 %38 None
OpBranch %39
%39 = OpLabel
%40 = OpLoad %int %i
%41 = OpAccessChain %_ptr_Uniform_int %_ %int_0 %uint_3
%42 = OpLoad %int %41
%43 = OpIAdd %int %42 %int_1
%44 = OpSLessThan %bool %40 %43
OpBranchConditional %44 %45 %37
%45 = OpLabel
%46 = OpLoad %int %i
%47 = OpAccessChain %_ptr_Uniform_int %_ %int_0 %uint_0
%48 = OpLoad %int %47
%49 = OpLoad %int %i
%50 = OpExtInst %int %1 SClamp %46 %48 %49
%51 = OpAccessChain %_ptr_Uniform_int %_ %int_0 %50
%52 = OpLoad %int %51
%53 = OpIEqual %bool %52 %int_1
OpSelectionMerge %54 None
OpBranchConditional %53 %55 %56
%55 = OpLabel
%57 = OpLoad %int %i
%58 = OpAccessChain %_ptr_Function_int %a %57
OpStore %58 %int_5
OpBranch %54
%56 = OpLabel
%59 = OpLoad %int %i
%60 = OpLoad %int %i
%61 = OpAccessChain %_ptr_Function_int %a %59
OpStore %61 %60
OpBranch %54
%54 = OpLabel
OpBranch %38
%38 = OpLabel
%62 = OpLoad %int %i
%63 = OpIAdd %int %62 %int_1
OpStore %i %63
OpBranch %36
%37 = OpLabel
%64 = OpAccessChain %_ptr_Function_int %a %uint_0
%65 = OpLoad %int %64
%66 = OpAccessChain %_ptr_Function_int %a %uint_1
%67 = OpLoad %int %66
%68 = OpIAdd %int %65 %67
%69 = OpAccessChain %_ptr_Function_int %a %uint_2
%70 = OpLoad %int %69
%71 = OpIAdd %int %68 %70
%72 = OpAccessChain %_ptr_Function_int %a %uint_3
%73 = OpLoad %int %72
%74 = OpIAdd %int %71 %73
OpStore %sum %74
%75 = OpLoad %int %sum
%76 = OpIEqual %bool %75 %int_10
OpSelectionMerge %77 None
OpBranchConditional %76 %78 %79
%78 = OpLabel
OpStore %_GLF_color %33
OpBranch %77
%79 = OpLabel
OpStore %_GLF_color %34
OpBranch %77
%77 = OpLabel
OpReturn
OpFunctionEnd