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_2 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_2 = OpConstant %uint 2
%_arr_float_uint_2 = OpTypeArray %float %uint_2
%buf1 = OpTypeStruct %_arr_float_uint_2
%_ptr_Uniform_buf1 = OpTypePointer Uniform %buf1
%_ = OpVariable %_ptr_Uniform_buf1 Uniform
%int = OpTypeInt 32 1
%int_0 = OpConstant %int 0
%int_1 = OpConstant %int 1
%_ptr_Uniform_float = OpTypePointer Uniform %float
%float_n580_015015 = OpConstant %float -580.015015
%float_100 = OpConstant %float 100
%26 = OpConstantComposite %v2float %float_100 %float_100
%uint_1 = OpConstant %uint 1
%_ptr_Function_float = OpTypePointer Function %float
%bool = OpTypeBool
%v4float = OpTypeVector %float 4
%_ptr_Output_v4float = OpTypePointer Output %v4float
%_GLF_color = OpVariable %_ptr_Output_v4float Output
%_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
%34 = OpLabel
%v0 = OpVariable %_ptr_Function_v2float Function
%v1 = OpVariable %_ptr_Function_v2float Function
%35 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %int_1
%36 = OpLoad %float %35
%37 = OpCompositeConstruct %v2float %36 %float_n580_015015
OpStore %v0 %37
%38 = OpLoad %v2float %v0
%39 = OpExtInst %v2float %1 Ceil %38
%40 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %int_0
%41 = OpLoad %float %40
%42 = OpFNegate %float %41
%43 = OpCompositeConstruct %v2float %42 %42
%44 = OpExtInst %v2float %1 FClamp %39 %43 %26
OpStore %v1 %44
%45 = OpAccessChain %_ptr_Function_float %v1 %uint_1
%46 = OpLoad %float %45
%47 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %int_0
%48 = OpLoad %float %47
%49 = OpFNegate %float %48
%50 = OpFOrdEqual %bool %46 %49
OpSelectionMerge %51 None
OpBranchConditional %50 %52 %53
%52 = OpLabel
%54 = OpAccessChain %_ptr_Uniform_int %__0 %int_0 %int_0
%55 = OpLoad %int %54
%56 = OpConvertSToF %float %55
%57 = OpAccessChain %_ptr_Uniform_int %__0 %int_0 %int_1
%58 = OpLoad %int %57
%59 = OpConvertSToF %float %58
%60 = OpAccessChain %_ptr_Uniform_int %__0 %int_0 %int_1
%61 = OpLoad %int %60
%62 = OpConvertSToF %float %61
%63 = OpAccessChain %_ptr_Uniform_int %__0 %int_0 %int_0
%64 = OpLoad %int %63
%65 = OpConvertSToF %float %64
%66 = OpCompositeConstruct %v4float %56 %59 %62 %65
OpStore %_GLF_color %66
OpBranch %51
%53 = OpLabel
%67 = OpAccessChain %_ptr_Uniform_int %__0 %int_0 %int_1
%68 = OpLoad %int %67
%69 = OpConvertSToF %float %68
%70 = OpCompositeConstruct %v4float %69 %69 %69 %69
OpStore %_GLF_color %70
OpBranch %51
%51 = OpLabel
OpReturn
OpFunctionEnd