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>
194 lines
6.8 KiB
JavaScript
194 lines
6.8 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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OpMemberName %_UniformBuffer 2 "testMatrix2x2"
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OpMemberName %_UniformBuffer 3 "testMatrix3x3"
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OpName %_entrypoint_v "_entrypoint_v"
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OpName %main "main"
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OpName %h22 "h22"
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OpName %f22 "f22"
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OpName %h33 "h33"
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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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OpMemberDecorate %_UniformBuffer 2 Offset 32
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OpMemberDecorate %_UniformBuffer 2 ColMajor
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OpMemberDecorate %_UniformBuffer 2 MatrixStride 16
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OpMemberDecorate %_UniformBuffer 3 Offset 64
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OpMemberDecorate %_UniformBuffer 3 ColMajor
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OpMemberDecorate %_UniformBuffer 3 MatrixStride 16
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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 %h22 RelaxedPrecision
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OpDecorate %h33 RelaxedPrecision
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OpDecorate %59 RelaxedPrecision
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OpDecorate %63 RelaxedPrecision
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OpDecorate %64 RelaxedPrecision
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OpDecorate %65 RelaxedPrecision
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OpDecorate %66 RelaxedPrecision
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OpDecorate %67 RelaxedPrecision
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OpDecorate %68 RelaxedPrecision
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OpDecorate %69 RelaxedPrecision
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OpDecorate %72 RelaxedPrecision
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OpDecorate %74 RelaxedPrecision
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OpDecorate %101 RelaxedPrecision
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OpDecorate %103 RelaxedPrecision
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OpDecorate %106 RelaxedPrecision
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OpDecorate %118 RelaxedPrecision
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OpDecorate %121 RelaxedPrecision
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OpDecorate %122 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 %v4float %v4float %mat2v2float %mat3v3float
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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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%_ptr_Function_mat2v2float = OpTypePointer Function %mat2v2float
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%float_5 = OpConstant %float 5
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%float_10 = OpConstant %float 10
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%float_15 = OpConstant %float 15
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%34 = OpConstantComposite %v2float %float_0 %float_5
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%35 = OpConstantComposite %v2float %float_10 %float_15
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%36 = OpConstantComposite %mat2v2float %34 %35
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%_ptr_Uniform_mat2v2float = OpTypePointer Uniform %mat2v2float
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%int = OpTypeInt 32 1
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%int_2 = OpConstant %int 2
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%float_1 = OpConstant %float 1
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%45 = OpConstantComposite %v2float %float_1 %float_0
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%46 = OpConstantComposite %v2float %float_0 %float_1
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%47 = OpConstantComposite %mat2v2float %45 %46
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%_ptr_Function_mat3v3float = OpTypePointer Function %mat3v3float
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%_ptr_Uniform_mat3v3float = OpTypePointer Uniform %mat3v3float
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%int_3 = OpConstant %int 3
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%float_2 = OpConstant %float 2
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%61 = OpConstantComposite %v3float %float_2 %float_2 %float_2
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%62 = OpConstantComposite %mat3v3float %61 %61 %61
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%false = OpConstantFalse %bool
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%v2bool = OpTypeVector %bool 2
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%float_4 = OpConstant %float 4
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%80 = OpConstantComposite %v2float %float_0 %float_4
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%81 = OpConstantComposite %mat2v2float %45 %80
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%float_6 = OpConstant %float 6
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%float_8 = OpConstant %float 8
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%float_12 = OpConstant %float 12
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%float_14 = OpConstant %float 14
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%float_16 = OpConstant %float 16
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%float_18 = OpConstant %float 18
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%96 = OpConstantComposite %v3float %float_2 %float_4 %float_6
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%97 = OpConstantComposite %v3float %float_8 %float_10 %float_12
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%98 = OpConstantComposite %v3float %float_14 %float_16 %float_18
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%99 = OpConstantComposite %mat3v3float %96 %97 %98
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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_0 = OpConstant %int 0
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%int_1 = OpConstant %int 1
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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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%h22 = OpVariable %_ptr_Function_mat2v2float Function
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%f22 = OpVariable %_ptr_Function_mat2v2float Function
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%h33 = OpVariable %_ptr_Function_mat3v3float Function
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%110 = OpVariable %_ptr_Function_v4float Function
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OpStore %h22 %36
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%39 = OpAccessChain %_ptr_Uniform_mat2v2float %10 %int_2
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%43 = OpLoad %mat2v2float %39
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%48 = OpCompositeExtract %v2float %43 0
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%49 = OpFMul %v2float %48 %45
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%50 = OpCompositeExtract %v2float %43 1
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%51 = OpFMul %v2float %50 %46
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%52 = OpCompositeConstruct %mat2v2float %49 %51
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OpStore %f22 %52
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%56 = OpAccessChain %_ptr_Uniform_mat3v3float %10 %int_3
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%59 = OpLoad %mat3v3float %56
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%63 = OpCompositeExtract %v3float %59 0
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%64 = OpFMul %v3float %63 %61
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%65 = OpCompositeExtract %v3float %59 1
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%66 = OpFMul %v3float %65 %61
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%67 = OpCompositeExtract %v3float %59 2
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%68 = OpFMul %v3float %67 %61
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%69 = OpCompositeConstruct %mat3v3float %64 %66 %68
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OpStore %h33 %69
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%72 = OpFOrdEqual %v2bool %34 %34
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%73 = OpAll %bool %72
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%74 = OpFOrdEqual %v2bool %35 %35
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%75 = OpAll %bool %74
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%76 = OpLogicalAnd %bool %73 %75
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OpSelectionMerge %78 None
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OpBranchConditional %76 %77 %78
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%77 = OpLabel
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%82 = OpFOrdEqual %v2bool %49 %45
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%83 = OpAll %bool %82
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%84 = OpFOrdEqual %v2bool %51 %80
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%85 = OpAll %bool %84
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%86 = OpLogicalAnd %bool %83 %85
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OpBranch %78
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%78 = OpLabel
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%87 = OpPhi %bool %false %28 %86 %77
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OpSelectionMerge %89 None
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OpBranchConditional %87 %88 %89
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%88 = OpLabel
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%101 = OpFOrdEqual %v3bool %64 %96
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%102 = OpAll %bool %101
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%103 = OpFOrdEqual %v3bool %66 %97
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%104 = OpAll %bool %103
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%105 = OpLogicalAnd %bool %102 %104
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%106 = OpFOrdEqual %v3bool %68 %98
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%107 = OpAll %bool %106
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%108 = OpLogicalAnd %bool %105 %107
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OpBranch %89
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%89 = OpLabel
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%109 = OpPhi %bool %false %78 %108 %88
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OpSelectionMerge %114 None
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OpBranchConditional %109 %112 %113
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%112 = OpLabel
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%115 = OpAccessChain %_ptr_Uniform_v4float %10 %int_0
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%118 = OpLoad %v4float %115
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OpStore %110 %118
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OpBranch %114
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%113 = OpLabel
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%119 = OpAccessChain %_ptr_Uniform_v4float %10 %int_1
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%121 = OpLoad %v4float %119
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OpStore %110 %121
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OpBranch %114
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%114 = OpLabel
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%122 = OpLoad %v4float %110
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OpReturnValue %122
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OpFunctionEnd
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