511c500ad4
These variables were later being eliminated by the dead-code-elimination pass, so you can't see them directly in the final output, but removing them affects the name mangling off all future symbols, so it causes an enormous ripple effect in the diff. And of course, it's a waste of time and memory to synthesize IRNodes just to destroy them later. If we disable control-flow analysis, we lose the dead-code-elimination pass entirely; this change is also beneficial for emitting better code when optimizations are turned off. Change-Id: I882b3be4f3fd99b77d99b6abe128f26bb9252c89 Bug: skia:11319 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/375776 Commit-Queue: John Stiles <johnstiles@google.com> Reviewed-by: Brian Osman <brianosman@google.com> Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
77 lines
2.5 KiB
JavaScript
77 lines
2.5 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 %main "main" %sk_FragColor %sk_Clockwise %src %dst
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OpExecutionMode %main OriginUpperLeft
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OpName %sk_FragColor "sk_FragColor"
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OpName %sk_Clockwise "sk_Clockwise"
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OpName %src "src"
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OpName %dst "dst"
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OpName %main "main"
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OpName %_0_result "_0_result"
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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 RelaxedPrecision
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OpDecorate %sk_Clockwise BuiltIn FrontFacing
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OpDecorate %src RelaxedPrecision
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OpDecorate %dst RelaxedPrecision
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OpDecorate %18 RelaxedPrecision
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OpDecorate %20 RelaxedPrecision
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OpDecorate %22 RelaxedPrecision
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OpDecorate %23 RelaxedPrecision
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OpDecorate %25 RelaxedPrecision
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OpDecorate %27 RelaxedPrecision
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OpDecorate %30 RelaxedPrecision
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OpDecorate %32 RelaxedPrecision
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OpDecorate %33 RelaxedPrecision
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OpDecorate %36 RelaxedPrecision
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OpDecorate %38 RelaxedPrecision
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OpDecorate %40 RelaxedPrecision
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OpDecorate %41 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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%_ptr_Input_v4float = OpTypePointer Input %v4float
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%src = OpVariable %_ptr_Input_v4float Input
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%dst = OpVariable %_ptr_Input_v4float Input
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%void = OpTypeVoid
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%14 = OpTypeFunction %void
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%_ptr_Function_v4float = OpTypePointer Function %v4float
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%float_1 = OpConstant %float 1
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%v3float = OpTypeVector %float 3
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%main = OpFunction %void None %14
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%15 = OpLabel
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%_0_result = OpVariable %_ptr_Function_v4float Function
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%18 = OpLoad %v4float %src
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%20 = OpLoad %v4float %src
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%21 = OpCompositeExtract %float %20 3
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%22 = OpFSub %float %float_1 %21
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%23 = OpLoad %v4float %dst
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%24 = OpVectorTimesScalar %v4float %23 %22
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%25 = OpFAdd %v4float %18 %24
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OpStore %_0_result %25
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%27 = OpLoad %v4float %_0_result
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%28 = OpVectorShuffle %v3float %27 %27 0 1 2
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%30 = OpLoad %v4float %dst
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%31 = OpCompositeExtract %float %30 3
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%32 = OpFSub %float %float_1 %31
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%33 = OpLoad %v4float %src
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%34 = OpVectorShuffle %v3float %33 %33 0 1 2
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%35 = OpVectorTimesScalar %v3float %34 %32
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%36 = OpLoad %v4float %dst
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%37 = OpVectorShuffle %v3float %36 %36 0 1 2
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%38 = OpFAdd %v3float %35 %37
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%26 = OpExtInst %v3float %1 FMin %28 %38
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%39 = OpLoad %v4float %_0_result
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%40 = OpVectorShuffle %v4float %39 %26 4 5 6 3
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OpStore %_0_result %40
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%41 = OpLoad %v4float %_0_result
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OpStore %sk_FragColor %41
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OpReturn
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OpFunctionEnd
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