721a07f5f6
(This mirrors an optimization performed in the constant folder.) Expressions like `OpIEqual %20 %20` or `OpFUnordNotEqual %15 %15` can be replaced by `true` or `false` on sight. The GLSL spec makes it clear that checking for NaN is optional: 4.7.1 Range and Precision "... NaNs are not required to be generated. Support for signaling NaNs is not required and exceptions are never raised. Operations and built-in functions that operate on a NaN are not required to return a NaN as the result." Change-Id: I2e29b659a73582e9ade0eb61f70f7d362a007c50 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/531550 Commit-Queue: John Stiles <johnstiles@google.com> Auto-Submit: John Stiles <johnstiles@google.com> Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: Brian Osman <brianosman@google.com>
113 lines
3.7 KiB
JavaScript
113 lines
3.7 KiB
JavaScript
OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %_entrypoint_v "_entrypoint" %sk_FragColor %sk_Clockwise
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OpExecutionMode %_entrypoint_v OriginUpperLeft
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OpName %sk_FragColor "sk_FragColor"
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OpName %sk_Clockwise "sk_Clockwise"
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OpName %_UniformBuffer "_UniformBuffer"
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OpMemberName %_UniformBuffer 0 "colorGreen"
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OpMemberName %_UniformBuffer 1 "colorRed"
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OpName %_entrypoint_v "_entrypoint_v"
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OpName %out_params_are_distinct_bhh "out_params_are_distinct_bhh"
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OpName %main "main"
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OpName %x "x"
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OpDecorate %sk_FragColor RelaxedPrecision
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OpDecorate %sk_FragColor Location 0
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OpDecorate %sk_FragColor Index 0
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OpDecorate %sk_Clockwise BuiltIn FrontFacing
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OpMemberDecorate %_UniformBuffer 0 Offset 0
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OpMemberDecorate %_UniformBuffer 0 RelaxedPrecision
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OpMemberDecorate %_UniformBuffer 1 Offset 16
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OpMemberDecorate %_UniformBuffer 1 RelaxedPrecision
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OpDecorate %_UniformBuffer Block
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OpDecorate %11 Binding 0
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OpDecorate %11 DescriptorSet 0
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OpDecorate %x RelaxedPrecision
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OpDecorate %40 RelaxedPrecision
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OpDecorate %41 RelaxedPrecision
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OpDecorate %43 RelaxedPrecision
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OpDecorate %44 RelaxedPrecision
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OpDecorate %54 RelaxedPrecision
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OpDecorate %57 RelaxedPrecision
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OpDecorate %58 RelaxedPrecision
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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%_ptr_Output_v4float = OpTypePointer Output %v4float
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%sk_FragColor = OpVariable %_ptr_Output_v4float Output
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%bool = OpTypeBool
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%_ptr_Input_bool = OpTypePointer Input %bool
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%sk_Clockwise = OpVariable %_ptr_Input_bool Input
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%_UniformBuffer = OpTypeStruct %v4float %v4float
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%_ptr_Uniform__UniformBuffer = OpTypePointer Uniform %_UniformBuffer
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%11 = OpVariable %_ptr_Uniform__UniformBuffer Uniform
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%void = OpTypeVoid
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%16 = OpTypeFunction %void
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%float_0 = OpConstant %float 0
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%v2float = OpTypeVector %float 2
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%20 = OpConstantComposite %v2float %float_0 %float_0
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%_ptr_Function_v2float = OpTypePointer Function %v2float
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%_ptr_Function_float = OpTypePointer Function %float
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%25 = OpTypeFunction %bool %_ptr_Function_float %_ptr_Function_float
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%float_1 = OpConstant %float 1
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%float_2 = OpConstant %float 2
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%false = OpConstantFalse %bool
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%true = OpConstantTrue %bool
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%36 = OpTypeFunction %v4float %_ptr_Function_v2float
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%_ptr_Function_v4float = OpTypePointer Function %v4float
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%_ptr_Uniform_v4float = OpTypePointer Uniform %v4float
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%int = OpTypeInt 32 1
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%int_0 = OpConstant %int 0
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%int_1 = OpConstant %int 1
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%_entrypoint_v = OpFunction %void None %16
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%17 = OpLabel
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%21 = OpVariable %_ptr_Function_v2float Function
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OpStore %21 %20
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%23 = OpFunctionCall %v4float %main %21
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OpStore %sk_FragColor %23
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OpReturn
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OpFunctionEnd
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%out_params_are_distinct_bhh = OpFunction %bool None %25
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%26 = OpFunctionParameter %_ptr_Function_float
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%27 = OpFunctionParameter %_ptr_Function_float
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%28 = OpLabel
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OpStore %26 %float_1
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OpStore %27 %float_2
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OpSelectionMerge %34 None
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OpBranchConditional %true %33 %34
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%33 = OpLabel
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OpBranch %34
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%34 = OpLabel
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%35 = OpPhi %bool %false %28 %true %33
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OpReturnValue %35
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OpFunctionEnd
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%main = OpFunction %v4float None %36
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%37 = OpFunctionParameter %_ptr_Function_v2float
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%38 = OpLabel
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%x = OpVariable %_ptr_Function_float Function
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%40 = OpVariable %_ptr_Function_float Function
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%41 = OpVariable %_ptr_Function_float Function
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%45 = OpVariable %_ptr_Function_v4float Function
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OpStore %x %float_0
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%42 = OpFunctionCall %bool %out_params_are_distinct_bhh %40 %41
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%43 = OpLoad %float %40
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OpStore %x %43
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%44 = OpLoad %float %41
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OpStore %x %44
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OpSelectionMerge %49 None
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OpBranchConditional %42 %47 %48
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%47 = OpLabel
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%50 = OpAccessChain %_ptr_Uniform_v4float %11 %int_0
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%54 = OpLoad %v4float %50
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OpStore %45 %54
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OpBranch %49
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%48 = OpLabel
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%55 = OpAccessChain %_ptr_Uniform_v4float %11 %int_1
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%57 = OpLoad %v4float %55
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OpStore %45 %57
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OpBranch %49
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%49 = OpLabel
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%58 = OpLoad %v4float %45
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OpReturnValue %58
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OpFunctionEnd
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