ffc9dec755
We now have two functions `writeOpLoad` and `writeOpStore` which are in charge of writing SpvOpLoad and SpvOpStore instructions. `writeOpStore` also keeps track of pointer stores in a "store cache." Subsequent loads from that same pointer will be found in the cache and will return the value stored in that pointer instead. Such a cache definitely cannot work in the face of control flow, so we make the following concessions: - `pruneReachableOps` is now `pruneConditionalOps`. Any pointers that are altered inside a potentially-unreachable block are cleared from the cache entirely. - The entire store cache is cleared at all OpLabels within a loop. The cache also cannot work in the presence of swizzled stores, so we make another significant concession: - The entire store cache is cleared whenever we store into a non-memory pointer (e.g., assigning into a swizzled LValue, such as `foo.xz`). Despite these significant limitations, this manages to dramatically shrink many real-world examples. Change-Id: I0981a0cf7b45b064e153e9ada271494c8e00cad5 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/530054 Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: John Stiles <johnstiles@google.com> Auto-Submit: John Stiles <johnstiles@google.com>
172 lines
6.1 KiB
JavaScript
172 lines
6.1 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 "testMatrix2x2"
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OpMemberName %_UniformBuffer 1 "testMatrix3x3"
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OpMemberName %_UniformBuffer 2 "colorGreen"
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OpMemberName %_UniformBuffer 3 "colorRed"
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OpName %_entrypoint_v "_entrypoint_v"
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OpName %main "main"
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OpName %testMatrix2x3 "testMatrix2x3"
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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 ColMajor
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OpMemberDecorate %_UniformBuffer 0 MatrixStride 16
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OpMemberDecorate %_UniformBuffer 1 Offset 32
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OpMemberDecorate %_UniformBuffer 1 ColMajor
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OpMemberDecorate %_UniformBuffer 1 MatrixStride 16
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OpMemberDecorate %_UniformBuffer 2 Offset 80
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OpMemberDecorate %_UniformBuffer 2 RelaxedPrecision
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OpMemberDecorate %_UniformBuffer 3 Offset 96
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OpMemberDecorate %_UniformBuffer 3 RelaxedPrecision
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OpDecorate %_UniformBuffer Block
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OpDecorate %10 Binding 0
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OpDecorate %10 DescriptorSet 0
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OpDecorate %114 RelaxedPrecision
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OpDecorate %117 RelaxedPrecision
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OpDecorate %118 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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%v2float = OpTypeVector %float 2
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%mat2v2float = OpTypeMatrix %v2float 2
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%v3float = OpTypeVector %float 3
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%mat3v3float = OpTypeMatrix %v3float 3
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%_UniformBuffer = OpTypeStruct %mat2v2float %mat3v3float %v4float %v4float
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%_ptr_Uniform__UniformBuffer = OpTypePointer Uniform %_UniformBuffer
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%10 = OpVariable %_ptr_Uniform__UniformBuffer Uniform
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%void = OpTypeVoid
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%19 = OpTypeFunction %void
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%float_0 = OpConstant %float 0
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%22 = OpConstantComposite %v2float %float_0 %float_0
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%_ptr_Function_v2float = OpTypePointer Function %v2float
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%26 = OpTypeFunction %v4float %_ptr_Function_v2float
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%mat2v3float = OpTypeMatrix %v3float 2
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%_ptr_Function_mat2v3float = OpTypePointer Function %mat2v3float
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%float_1 = OpConstant %float 1
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%float_2 = OpConstant %float 2
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%float_3 = OpConstant %float 3
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%float_4 = OpConstant %float 4
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%float_5 = OpConstant %float 5
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%float_6 = OpConstant %float 6
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%38 = OpConstantComposite %v3float %float_1 %float_2 %float_3
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%39 = OpConstantComposite %v3float %float_4 %float_5 %float_6
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%40 = OpConstantComposite %mat2v3float %38 %39
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%false = OpConstantFalse %bool
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%_ptr_Uniform_mat2v2float = OpTypePointer Uniform %mat2v2float
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%int = OpTypeInt 32 1
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%int_0 = OpConstant %int 0
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%48 = OpConstantComposite %v2float %float_1 %float_3
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%49 = OpConstantComposite %v2float %float_2 %float_4
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%50 = OpConstantComposite %mat2v2float %48 %49
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%v2bool = OpTypeVector %bool 2
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%mat3v2float = OpTypeMatrix %v2float 3
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%63 = OpConstantComposite %v2float %float_1 %float_4
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%64 = OpConstantComposite %v2float %float_2 %float_5
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%65 = OpConstantComposite %v2float %float_3 %float_6
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%66 = OpConstantComposite %mat3v2float %63 %64 %65
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%_ptr_Uniform_mat3v3float = OpTypePointer Uniform %mat3v3float
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%int_1 = OpConstant %int 1
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%float_7 = OpConstant %float 7
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%float_8 = OpConstant %float 8
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%float_9 = OpConstant %float 9
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%89 = OpConstantComposite %v3float %float_1 %float_4 %float_7
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%90 = OpConstantComposite %v3float %float_2 %float_5 %float_8
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%91 = OpConstantComposite %v3float %float_3 %float_6 %float_9
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%92 = OpConstantComposite %mat3v3float %89 %90 %91
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%v3bool = OpTypeVector %bool 3
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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_2 = OpConstant %int 2
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%int_3 = OpConstant %int 3
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%_entrypoint_v = OpFunction %void None %19
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%20 = OpLabel
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%23 = OpVariable %_ptr_Function_v2float Function
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OpStore %23 %22
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%25 = OpFunctionCall %v4float %main %23
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OpStore %sk_FragColor %25
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OpReturn
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OpFunctionEnd
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%main = OpFunction %v4float None %26
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%27 = OpFunctionParameter %_ptr_Function_v2float
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%28 = OpLabel
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%testMatrix2x3 = OpVariable %_ptr_Function_mat2v3float Function
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%106 = OpVariable %_ptr_Function_v4float Function
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OpStore %testMatrix2x3 %40
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%43 = OpAccessChain %_ptr_Uniform_mat2v2float %10 %int_0
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%47 = OpLoad %mat2v2float %43
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%42 = OpTranspose %mat2v2float %47
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%52 = OpCompositeExtract %v2float %42 0
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%53 = OpFOrdEqual %v2bool %52 %48
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%54 = OpAll %bool %53
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%55 = OpCompositeExtract %v2float %42 1
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%56 = OpFOrdEqual %v2bool %55 %49
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%57 = OpAll %bool %56
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%58 = OpLogicalAnd %bool %54 %57
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OpSelectionMerge %60 None
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OpBranchConditional %58 %59 %60
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%59 = OpLabel
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%61 = OpTranspose %mat3v2float %40
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%67 = OpCompositeExtract %v2float %61 0
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%68 = OpFOrdEqual %v2bool %67 %63
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%69 = OpAll %bool %68
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%70 = OpCompositeExtract %v2float %61 1
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%71 = OpFOrdEqual %v2bool %70 %64
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%72 = OpAll %bool %71
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%73 = OpLogicalAnd %bool %69 %72
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%74 = OpCompositeExtract %v2float %61 2
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%75 = OpFOrdEqual %v2bool %74 %65
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%76 = OpAll %bool %75
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%77 = OpLogicalAnd %bool %73 %76
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OpBranch %60
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%60 = OpLabel
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%78 = OpPhi %bool %false %28 %77 %59
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OpSelectionMerge %80 None
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OpBranchConditional %78 %79 %80
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%79 = OpLabel
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%82 = OpAccessChain %_ptr_Uniform_mat3v3float %10 %int_1
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%85 = OpLoad %mat3v3float %82
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%81 = OpTranspose %mat3v3float %85
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%94 = OpCompositeExtract %v3float %81 0
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%95 = OpFOrdEqual %v3bool %94 %89
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%96 = OpAll %bool %95
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%97 = OpCompositeExtract %v3float %81 1
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%98 = OpFOrdEqual %v3bool %97 %90
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%99 = OpAll %bool %98
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%100 = OpLogicalAnd %bool %96 %99
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%101 = OpCompositeExtract %v3float %81 2
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%102 = OpFOrdEqual %v3bool %101 %91
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%103 = OpAll %bool %102
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%104 = OpLogicalAnd %bool %100 %103
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OpBranch %80
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%80 = OpLabel
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%105 = OpPhi %bool %false %60 %104 %79
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OpSelectionMerge %110 None
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OpBranchConditional %105 %108 %109
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%108 = OpLabel
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%111 = OpAccessChain %_ptr_Uniform_v4float %10 %int_2
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%114 = OpLoad %v4float %111
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OpStore %106 %114
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OpBranch %110
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%109 = OpLabel
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%115 = OpAccessChain %_ptr_Uniform_v4float %10 %int_3
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%117 = OpLoad %v4float %115
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OpStore %106 %117
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OpBranch %110
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%110 = OpLabel
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%118 = OpLoad %v4float %106
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OpReturnValue %118
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OpFunctionEnd
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