SPV: Emit OpSelect when a selection node is simple enough.
Also, ensures it has a type, no disallowed side effects, or performance trade offs.
This commit is contained in:
John Kessenich
@@ -1,7 +1,7 @@
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spv.140.frag
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// Module Version 10000
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// Generated by (magic number): 80001
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// Id's are bound by 101
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// Id's are bound by 96
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Capability Shader
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Capability ClipDistance
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@@ -10,168 +10,157 @@ spv.140.frag
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Capability ImageQuery
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1: ExtInstImport "GLSL.std.450"
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MemoryModel Logical GLSL450
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EntryPoint Fragment 4 "main" 16 28 33 43
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EntryPoint Fragment 4 "main" 14 23 28 38
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ExecutionMode 4 OriginUpperLeft
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Source GLSL 140
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Name 4 "main"
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Name 8 "foo("
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Name 11 "i1"
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Name 16 "gl_FrontFacing"
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Name 24 "i2"
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Name 28 "o"
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Name 33 "gl_ClipDistance"
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Name 43 "k"
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Name 55 "sampR"
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Name 63 "sampB"
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Name 87 "samp2Da"
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Name 92 "bn"
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MemberName 92(bn) 0 "matra"
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MemberName 92(bn) 1 "matca"
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MemberName 92(bn) 2 "matr"
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MemberName 92(bn) 3 "matc"
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MemberName 92(bn) 4 "matrdef"
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Name 94 ""
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Name 97 "bi"
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MemberName 97(bi) 0 "v"
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Name 100 "bname"
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Decorate 16(gl_FrontFacing) BuiltIn FrontFacing
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Decorate 33(gl_ClipDistance) BuiltIn ClipDistance
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Decorate 55(sampR) DescriptorSet 0
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Decorate 63(sampB) DescriptorSet 0
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Decorate 87(samp2Da) DescriptorSet 0
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Decorate 90 ArrayStride 64
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Decorate 91 ArrayStride 64
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MemberDecorate 92(bn) 0 RowMajor
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MemberDecorate 92(bn) 0 Offset 0
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MemberDecorate 92(bn) 0 MatrixStride 16
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MemberDecorate 92(bn) 1 ColMajor
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MemberDecorate 92(bn) 1 Offset 256
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MemberDecorate 92(bn) 1 MatrixStride 16
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MemberDecorate 92(bn) 2 RowMajor
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MemberDecorate 92(bn) 2 Offset 512
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MemberDecorate 92(bn) 2 MatrixStride 16
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MemberDecorate 92(bn) 3 ColMajor
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MemberDecorate 92(bn) 3 Offset 576
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MemberDecorate 92(bn) 3 MatrixStride 16
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MemberDecorate 92(bn) 4 RowMajor
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MemberDecorate 92(bn) 4 Offset 640
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MemberDecorate 92(bn) 4 MatrixStride 16
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Decorate 92(bn) Block
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Decorate 94 DescriptorSet 0
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Decorate 96 ArrayStride 16
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MemberDecorate 97(bi) 0 Offset 0
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Decorate 97(bi) Block
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Decorate 100(bname) DescriptorSet 0
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Name 14 "gl_FrontFacing"
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Name 19 "i2"
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Name 23 "o"
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Name 28 "gl_ClipDistance"
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Name 38 "k"
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Name 50 "sampR"
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Name 58 "sampB"
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Name 82 "samp2Da"
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Name 87 "bn"
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MemberName 87(bn) 0 "matra"
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MemberName 87(bn) 1 "matca"
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MemberName 87(bn) 2 "matr"
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MemberName 87(bn) 3 "matc"
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MemberName 87(bn) 4 "matrdef"
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Name 89 ""
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Name 92 "bi"
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MemberName 92(bi) 0 "v"
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Name 95 "bname"
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Decorate 14(gl_FrontFacing) BuiltIn FrontFacing
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Decorate 28(gl_ClipDistance) BuiltIn ClipDistance
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Decorate 50(sampR) DescriptorSet 0
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Decorate 58(sampB) DescriptorSet 0
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Decorate 82(samp2Da) DescriptorSet 0
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Decorate 85 ArrayStride 64
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Decorate 86 ArrayStride 64
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MemberDecorate 87(bn) 0 RowMajor
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MemberDecorate 87(bn) 0 Offset 0
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MemberDecorate 87(bn) 0 MatrixStride 16
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MemberDecorate 87(bn) 1 ColMajor
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MemberDecorate 87(bn) 1 Offset 256
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MemberDecorate 87(bn) 1 MatrixStride 16
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MemberDecorate 87(bn) 2 RowMajor
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MemberDecorate 87(bn) 2 Offset 512
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MemberDecorate 87(bn) 2 MatrixStride 16
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MemberDecorate 87(bn) 3 ColMajor
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MemberDecorate 87(bn) 3 Offset 576
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MemberDecorate 87(bn) 3 MatrixStride 16
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MemberDecorate 87(bn) 4 RowMajor
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MemberDecorate 87(bn) 4 Offset 640
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MemberDecorate 87(bn) 4 MatrixStride 16
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Decorate 87(bn) Block
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Decorate 89 DescriptorSet 0
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Decorate 91 ArrayStride 16
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MemberDecorate 92(bi) 0 Offset 0
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Decorate 92(bi) Block
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Decorate 95(bname) DescriptorSet 0
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2: TypeVoid
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3: TypeFunction 2
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6: TypeFloat 32
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7: TypeFunction 6(float)
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10: TypePointer Private 6(float)
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11(i1): 10(ptr) Variable Private
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12: TypePointer Function 6(float)
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14: TypeBool
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15: TypePointer Input 14(bool)
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16(gl_FrontFacing): 15(ptr) Variable Input
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20: 6(float) Constant 3221225472
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22: 6(float) Constant 1073741824
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24(i2): 10(ptr) Variable Private
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25: 6(float) Constant 1120665600
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26: TypeVector 6(float) 4
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27: TypePointer Output 26(fvec4)
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28(o): 27(ptr) Variable Output
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29: TypeInt 32 0
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30: 29(int) Constant 5
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31: TypeArray 6(float) 30
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32: TypePointer Input 31
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33(gl_ClipDistance): 32(ptr) Variable Input
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34: TypeInt 32 1
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35: 34(int) Constant 2
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36: TypePointer Input 6(float)
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39: 29(int) Constant 1
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40: TypePointer Output 6(float)
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42: TypePointer Input 26(fvec4)
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43(k): 42(ptr) Variable Input
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45: TypeVector 34(int) 4
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50: 29(int) Constant 2
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52: TypeImage 6(float) Rect sampled format:Unknown
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53: TypeSampledImage 52
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54: TypePointer UniformConstant 53
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55(sampR): 54(ptr) Variable UniformConstant
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58: TypeVector 34(int) 2
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60: TypeImage 34(int) Buffer sampled format:Unknown
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61: TypeSampledImage 60
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62: TypePointer UniformConstant 61
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63(sampB): 62(ptr) Variable UniformConstant
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69: TypeVector 6(float) 2
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72: 6(float) Constant 1120403456
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74: 29(int) Constant 3
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83: TypeImage 6(float) 2D sampled format:Unknown
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84: TypeSampledImage 83
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85: TypeArray 84 74
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86: TypePointer UniformConstant 85
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87(samp2Da): 86(ptr) Variable UniformConstant
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88: TypeMatrix 26(fvec4) 4
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89: 29(int) Constant 4
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90: TypeArray 88 89
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91: TypeArray 88 89
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92(bn): TypeStruct 90 91 88 88 88
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93: TypePointer Uniform 92(bn)
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94: 93(ptr) Variable Uniform
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95: TypeVector 6(float) 3
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96: TypeArray 95(fvec3) 50
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97(bi): TypeStruct 96
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98: TypeArray 97(bi) 89
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99: TypePointer Uniform 98
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100(bname): 99(ptr) Variable Uniform
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12: TypeBool
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13: TypePointer Input 12(bool)
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14(gl_FrontFacing): 13(ptr) Variable Input
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16: 6(float) Constant 3221225472
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17: 6(float) Constant 1073741824
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19(i2): 10(ptr) Variable Private
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20: 6(float) Constant 1120665600
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21: TypeVector 6(float) 4
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22: TypePointer Output 21(fvec4)
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23(o): 22(ptr) Variable Output
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24: TypeInt 32 0
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25: 24(int) Constant 5
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26: TypeArray 6(float) 25
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27: TypePointer Input 26
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28(gl_ClipDistance): 27(ptr) Variable Input
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29: TypeInt 32 1
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30: 29(int) Constant 2
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31: TypePointer Input 6(float)
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34: 24(int) Constant 1
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35: TypePointer Output 6(float)
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37: TypePointer Input 21(fvec4)
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38(k): 37(ptr) Variable Input
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40: TypeVector 29(int) 4
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45: 24(int) Constant 2
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47: TypeImage 6(float) Rect sampled format:Unknown
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48: TypeSampledImage 47
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49: TypePointer UniformConstant 48
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50(sampR): 49(ptr) Variable UniformConstant
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53: TypeVector 29(int) 2
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55: TypeImage 29(int) Buffer sampled format:Unknown
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56: TypeSampledImage 55
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57: TypePointer UniformConstant 56
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58(sampB): 57(ptr) Variable UniformConstant
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64: TypeVector 6(float) 2
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67: 6(float) Constant 1120403456
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69: 24(int) Constant 3
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78: TypeImage 6(float) 2D sampled format:Unknown
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79: TypeSampledImage 78
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80: TypeArray 79 69
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81: TypePointer UniformConstant 80
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82(samp2Da): 81(ptr) Variable UniformConstant
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83: TypeMatrix 21(fvec4) 4
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84: 24(int) Constant 4
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85: TypeArray 83 84
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86: TypeArray 83 84
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87(bn): TypeStruct 85 86 83 83 83
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88: TypePointer Uniform 87(bn)
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89: 88(ptr) Variable Uniform
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90: TypeVector 6(float) 3
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91: TypeArray 90(fvec3) 45
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92(bi): TypeStruct 91
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93: TypeArray 92(bi) 84
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94: TypePointer Uniform 93
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95(bname): 94(ptr) Variable Uniform
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4(main): 2 Function None 3
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5: Label
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13: 12(ptr) Variable Function
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17: 14(bool) Load 16(gl_FrontFacing)
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SelectionMerge 19 None
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BranchConditional 17 18 21
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18: Label
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Store 13 20
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Branch 19
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21: Label
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Store 13 22
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Branch 19
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19: Label
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23: 6(float) Load 13
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Store 11(i1) 23
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Store 24(i2) 25
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37: 36(ptr) AccessChain 33(gl_ClipDistance) 35
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38: 6(float) Load 37
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41: 40(ptr) AccessChain 28(o) 39
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Store 41 38
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44: 26(fvec4) Load 43(k)
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46: 45(ivec4) ConvertFToS 44
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47: 34(int) CompositeExtract 46 0
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48: 36(ptr) AccessChain 33(gl_ClipDistance) 47
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49: 6(float) Load 48
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51: 40(ptr) AccessChain 28(o) 50
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Store 51 49
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56: 53 Load 55(sampR)
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57: 52 Image 56
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59: 58(ivec2) ImageQuerySize 57
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64: 61 Load 63(sampB)
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65: 60 Image 64
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66: 34(int) ImageQuerySize 65
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67: 58(ivec2) CompositeConstruct 66 66
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68: 58(ivec2) IAdd 59 67
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70: 69(fvec2) ConvertSToF 68
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71: 6(float) CompositeExtract 70 0
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73: 6(float) FDiv 71 72
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75: 40(ptr) AccessChain 28(o) 74
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Store 75 73
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76: 6(float) FunctionCall 8(foo()
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77: 40(ptr) AccessChain 28(o) 50
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Store 77 76
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15: 12(bool) Load 14(gl_FrontFacing)
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18: 6(float) Select 15 16 17
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Store 11(i1) 18
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Store 19(i2) 20
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32: 31(ptr) AccessChain 28(gl_ClipDistance) 30
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33: 6(float) Load 32
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36: 35(ptr) AccessChain 23(o) 34
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Store 36 33
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39: 21(fvec4) Load 38(k)
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41: 40(ivec4) ConvertFToS 39
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42: 29(int) CompositeExtract 41 0
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43: 31(ptr) AccessChain 28(gl_ClipDistance) 42
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44: 6(float) Load 43
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46: 35(ptr) AccessChain 23(o) 45
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Store 46 44
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51: 48 Load 50(sampR)
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52: 47 Image 51
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54: 53(ivec2) ImageQuerySize 52
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59: 56 Load 58(sampB)
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60: 55 Image 59
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61: 29(int) ImageQuerySize 60
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62: 53(ivec2) CompositeConstruct 61 61
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63: 53(ivec2) IAdd 54 62
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65: 64(fvec2) ConvertSToF 63
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66: 6(float) CompositeExtract 65 0
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68: 6(float) FDiv 66 67
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70: 35(ptr) AccessChain 23(o) 69
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Store 70 68
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71: 6(float) FunctionCall 8(foo()
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72: 35(ptr) AccessChain 23(o) 45
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Store 72 71
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Return
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FunctionEnd
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8(foo(): 6(float) Function None 7
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9: Label
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78: 6(float) Load 11(i1)
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79: 6(float) Load 24(i2)
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80: 6(float) FAdd 78 79
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ReturnValue 80
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73: 6(float) Load 11(i1)
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74: 6(float) Load 19(i2)
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75: 6(float) FAdd 73 74
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ReturnValue 75
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FunctionEnd
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