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 %b "b"
OpName %c "c"
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
%uint = OpTypeInt 32 0
%uint_3 = OpConstant %uint 3
%_arr_int_uint_3 = OpTypeArray %int %uint_3
%_ptr_Function__arr_int_uint_3 = OpTypePointer Function %_arr_int_uint_3
%int_0 = OpConstant %int 0
%int_1 = OpConstant %int 1
%_ptr_Function_int = OpTypePointer Function %int
%int_2 = OpConstant %int 2
%int_3 = OpConstant %int 3
%buf0 = OpTypeStruct %int
%_ptr_Uniform_buf0 = OpTypePointer Uniform %buf0
%_ = OpVariable %_ptr_Uniform_buf0 Uniform
%_ptr_Uniform_int = OpTypePointer Uniform %int
%bool = OpTypeBool
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%_ptr_Output_v4float = OpTypePointer Output %v4float
%_GLF_color = OpVariable %_ptr_Output_v4float Output
%float_0 = OpConstant %float 0
%float_1 = OpConstant %float 1
%29 = OpConstantComposite %v4float %float_0 %float_1 %float_1 %float_0
%int_4 = OpConstant %int 4
%31 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1
%32 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
%main = OpFunction %void None %10
%33 = OpLabel
%a = OpVariable %_ptr_Function__arr_int_uint_3 Function
%b = OpVariable %_ptr_Function_int Function
%c = OpVariable %_ptr_Function_int Function
%34 = OpAccessChain %_ptr_Function_int %a %int_0
OpStore %34 %int_1
%35 = OpAccessChain %_ptr_Function_int %a %int_1
OpStore %35 %int_2
%36 = OpAccessChain %_ptr_Function_int %a %int_2
OpStore %36 %int_3
OpStore %b %int_0
%37 = OpAccessChain %_ptr_Uniform_int %_ %int_0
%38 = OpLoad %int %37
%39 = OpAccessChain %_ptr_Function_int %a %38
%40 = OpLoad %int %39
OpStore %c %40
%41 = OpLoad %int %c
%42 = OpSGreaterThan %bool %41 %int_1
OpSelectionMerge %43 None
OpBranchConditional %42 %44 %43
%44 = OpLabel
OpStore %_GLF_color %29
%45 = OpLoad %int %b
%46 = OpIAdd %int %45 %int_1
OpStore %b %46
OpBranch %43
%43 = OpLabel
%47 = OpLoad %int %b
%48 = OpIAdd %int %47 %int_1
OpStore %b %48
%49 = OpExtInst %int %1 SClamp %48 %int_0 %int_2
%50 = OpAccessChain %_ptr_Function_int %a %49
%51 = OpLoad %int %50
%52 = OpIAdd %int %51 %int_1
OpStore %50 %52
%53 = OpAccessChain %_ptr_Function_int %a %int_2
%54 = OpLoad %int %53
%55 = OpIEqual %bool %54 %int_4
OpSelectionMerge %56 None
OpBranchConditional %55 %57 %58
%57 = OpLabel
OpStore %_GLF_color %31
OpBranch %56
%58 = OpLabel
OpStore %_GLF_color %32
OpBranch %56
%56 = OpLabel
OpReturn
OpFunctionEnd