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 320
OpName %main "main"
OpName %v0 "v0"
OpName %buf1 "buf1"
OpMemberName %buf1 0 "_GLF_uniform_float_values"
OpName %_ ""
OpName %v1 "v1"
OpName %_GLF_color "_GLF_color"
OpName %buf0 "buf0"
OpMemberName %buf0 0 "_GLF_uniform_int_values"
OpName %__0 ""
OpDecorate %_arr_float_uint_3 ArrayStride 16
OpMemberDecorate %buf1 0 Offset 0
OpDecorate %buf1 Block
OpDecorate %_ DescriptorSet 0
OpDecorate %_ Binding 1
OpDecorate %_GLF_color Location 0
OpDecorate %_arr_int_uint_2 ArrayStride 16
OpMemberDecorate %buf0 0 Offset 0
OpDecorate %buf0 Block
OpDecorate %__0 DescriptorSet 0
OpDecorate %__0 Binding 0
%void = OpTypeVoid
%13 = OpTypeFunction %void
%float = OpTypeFloat 32
%v2float = OpTypeVector %float 2
%_ptr_Function_v2float = OpTypePointer Function %v2float
%uint = OpTypeInt 32 0
%uint_3 = OpConstant %uint 3
%_arr_float_uint_3 = OpTypeArray %float %uint_3
%buf1 = OpTypeStruct %_arr_float_uint_3
%_ptr_Uniform_buf1 = OpTypePointer Uniform %buf1
%_ = OpVariable %_ptr_Uniform_buf1 Uniform
%int = OpTypeInt 32 1
%int_0 = OpConstant %int 0
%int_2 = OpConstant %int 2
%_ptr_Uniform_float = OpTypePointer Uniform %float
%float_3_79999995 = OpConstant %float 3.79999995
%float_1 = OpConstant %float 1
%float_0 = OpConstant %float 0
%int_1 = OpConstant %int 1
%bool = OpTypeBool
%v2bool = OpTypeVector %bool 2
%v4float = OpTypeVector %float 4
%_ptr_Output_v4float = OpTypePointer Output %v4float
%_GLF_color = OpVariable %_ptr_Output_v4float Output
%uint_2 = OpConstant %uint 2
%_arr_int_uint_2 = OpTypeArray %int %uint_2
%buf0 = OpTypeStruct %_arr_int_uint_2
%_ptr_Uniform_buf0 = OpTypePointer Uniform %buf0
%__0 = OpVariable %_ptr_Uniform_buf0 Uniform
%_ptr_Uniform_int = OpTypePointer Uniform %int
%main = OpFunction %void None %13
%35 = OpLabel
%v0 = OpVariable %_ptr_Function_v2float Function
%v1 = OpVariable %_ptr_Function_v2float Function
%36 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %int_2
%37 = OpLoad %float %36
%38 = OpCompositeConstruct %v2float %37 %float_3_79999995
OpStore %v0 %38
%39 = OpLoad %v2float %v0
%40 = OpCompositeConstruct %v2float %float_1 %float_1
%41 = OpFSub %v2float %39 %40
%42 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %int_1
%43 = OpLoad %float %42
%44 = OpCompositeConstruct %v2float %float_0 %float_0
%45 = OpCompositeConstruct %v2float %43 %43
%46 = OpExtInst %v2float %1 FClamp %41 %44 %45
OpStore %v1 %46
%47 = OpLoad %v2float %v1
%48 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %int_0
%49 = OpLoad %float %48
%50 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %int_1
%51 = OpLoad %float %50
%52 = OpCompositeConstruct %v2float %49 %51
%53 = OpFOrdEqual %v2bool %47 %52
%54 = OpAll %bool %53
OpSelectionMerge %55 None
OpBranchConditional %54 %56 %57
%56 = OpLabel
%58 = OpAccessChain %_ptr_Uniform_int %__0 %int_0 %int_0
%59 = OpLoad %int %58
%60 = OpConvertSToF %float %59
%61 = OpAccessChain %_ptr_Uniform_int %__0 %int_0 %int_1
%62 = OpLoad %int %61
%63 = OpConvertSToF %float %62
%64 = OpAccessChain %_ptr_Uniform_int %__0 %int_0 %int_1
%65 = OpLoad %int %64
%66 = OpConvertSToF %float %65
%67 = OpAccessChain %_ptr_Uniform_int %__0 %int_0 %int_0
%68 = OpLoad %int %67
%69 = OpConvertSToF %float %68
%70 = OpCompositeConstruct %v4float %60 %63 %66 %69
OpStore %_GLF_color %70
OpBranch %55
%57 = OpLabel
%71 = OpAccessChain %_ptr_Uniform_int %__0 %int_0 %int_1
%72 = OpLoad %int %71
%73 = OpConvertSToF %float %72
%74 = OpCompositeConstruct %v4float %73 %73 %73 %73
OpStore %_GLF_color %74
OpBranch %55
%55 = OpLabel
OpReturn
OpFunctionEnd