Built-in values declared as specialization constant
Support declaring built-in values as spec constants. Refine the code in createSpvConstant().
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qining
@@ -7,32 +7,35 @@ Linked vertex stage:
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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 72
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// Id's are bound by 81
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Capability Shader
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Capability Float64
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1: ExtInstImport "GLSL.std.450"
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MemoryModel Logical GLSL450
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EntryPoint Vertex 4 "main" 17 19 25 50
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EntryPoint Vertex 4 "main" 20 22 28 53
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Source GLSL 400
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Name 4 "main"
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Name 14 "foo(vf4[s1498];"
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Name 13 "p"
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Name 17 "color"
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Name 19 "ucol"
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Name 25 "size"
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Name 44 "param"
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Name 50 "dupUcol"
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Name 17 "builtin_spec_constant("
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Name 20 "color"
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Name 22 "ucol"
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Name 28 "size"
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Name 47 "param"
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Name 53 "dupUcol"
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Name 76 "result"
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Decorate 9 SpecId 16
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Decorate 27 SpecId 17
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Decorate 31 SpecId 22
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Decorate 36 SpecId 19
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Decorate 37 SpecId 18
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Decorate 47 SpecId 116
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Decorate 57 SpecId 117
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Decorate 60 SpecId 122
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Decorate 64 SpecId 119
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Decorate 65 SpecId 118
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Decorate 30 SpecId 17
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Decorate 34 SpecId 22
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Decorate 39 SpecId 19
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Decorate 40 SpecId 18
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Decorate 50 SpecId 116
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Decorate 60 SpecId 117
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Decorate 63 SpecId 122
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Decorate 67 SpecId 119
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Decorate 68 SpecId 118
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Decorate 77 SpecId 24
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2: TypeVoid
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3: TypeFunction 2
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6: TypeFloat 32
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@@ -42,83 +45,93 @@ Linked vertex stage:
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10: TypeArray 7(fvec4) 9
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11: TypePointer Function 10
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12: TypeFunction 2 11(ptr)
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16: TypePointer Output 7(fvec4)
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17(color): 16(ptr) Variable Output
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18: TypePointer Input 10
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19(ucol): 18(ptr) Variable Input
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20: 8(int) Constant 2
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21: TypePointer Input 7(fvec4)
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24: TypePointer Output 8(int)
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25(size): 24(ptr) Variable Output
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26: TypeBool
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27: 26(bool) SpecConstantTrue
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30: TypeInt 32 0
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31: 30(int) SpecConstant 2
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35: TypeFloat 64
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36: 35(float) SpecConstant 1413754136 1074340347
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37: 6(float) SpecConstant 1078523331
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47: 8(int) SpecConstant 12
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48: TypeArray 7(fvec4) 47
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49: TypePointer Input 48
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50(dupUcol): 49(ptr) Variable Input
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57: 26(bool) SpecConstantTrue
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60: 30(int) SpecConstant 2
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64: 35(float) SpecConstant 1413754136 1074340347
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65: 6(float) SpecConstant 1078523331
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16: TypeFunction 8(int)
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19: TypePointer Output 7(fvec4)
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20(color): 19(ptr) Variable Output
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21: TypePointer Input 10
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22(ucol): 21(ptr) Variable Input
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23: 8(int) Constant 2
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24: TypePointer Input 7(fvec4)
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27: TypePointer Output 8(int)
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28(size): 27(ptr) Variable Output
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29: TypeBool
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30: 29(bool) SpecConstantTrue
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33: TypeInt 32 0
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34: 33(int) SpecConstant 2
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38: TypeFloat 64
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39: 38(float) SpecConstant 1413754136 1074340347
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40: 6(float) SpecConstant 1078523331
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50: 8(int) SpecConstant 12
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51: TypeArray 7(fvec4) 50
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52: TypePointer Input 51
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53(dupUcol): 52(ptr) Variable Input
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60: 29(bool) SpecConstantTrue
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63: 33(int) SpecConstant 2
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67: 38(float) SpecConstant 1413754136 1074340347
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68: 6(float) SpecConstant 1078523331
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75: TypePointer Function 8(int)
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77: 8(int) SpecConstant 8
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4(main): 2 Function None 3
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5: Label
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44(param): 11(ptr) Variable Function
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22: 21(ptr) AccessChain 19(ucol) 20
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23: 7(fvec4) Load 22
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Store 17(color) 23
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Store 25(size) 9
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SelectionMerge 29 None
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BranchConditional 27 28 29
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28: Label
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32: 6(float) ConvertUToF 31
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33: 7(fvec4) Load 17(color)
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34: 7(fvec4) VectorTimesScalar 33 32
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Store 17(color) 34
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Branch 29
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29: Label
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38: 35(float) FConvert 37
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39: 35(float) FDiv 36 38
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40: 6(float) FConvert 39
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41: 7(fvec4) Load 17(color)
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42: 7(fvec4) CompositeConstruct 40 40 40 40
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43: 7(fvec4) FAdd 41 42
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Store 17(color) 43
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45: 10 Load 19(ucol)
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Store 44(param) 45
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46: 2 FunctionCall 14(foo(vf4[s1498];) 44(param)
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47(param): 11(ptr) Variable Function
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25: 24(ptr) AccessChain 22(ucol) 23
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26: 7(fvec4) Load 25
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Store 20(color) 26
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Store 28(size) 9
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SelectionMerge 32 None
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BranchConditional 30 31 32
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31: Label
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35: 6(float) ConvertUToF 34
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36: 7(fvec4) Load 20(color)
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37: 7(fvec4) VectorTimesScalar 36 35
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Store 20(color) 37
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Branch 32
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32: Label
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41: 38(float) FConvert 40
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42: 38(float) FDiv 39 41
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43: 6(float) FConvert 42
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44: 7(fvec4) Load 20(color)
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45: 7(fvec4) CompositeConstruct 43 43 43 43
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46: 7(fvec4) FAdd 44 45
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Store 20(color) 46
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48: 10 Load 22(ucol)
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Store 47(param) 48
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49: 2 FunctionCall 14(foo(vf4[s1498];) 47(param)
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Return
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FunctionEnd
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14(foo(vf4[s1498];): 2 Function None 12
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13(p): 11(ptr) FunctionParameter
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15: Label
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51: 21(ptr) AccessChain 50(dupUcol) 20
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52: 7(fvec4) Load 51
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53: 7(fvec4) Load 17(color)
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54: 7(fvec4) FAdd 53 52
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Store 17(color) 54
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55: 8(int) Load 25(size)
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56: 8(int) IAdd 55 47
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Store 25(size) 56
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SelectionMerge 59 None
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BranchConditional 57 58 59
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58: Label
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61: 6(float) ConvertUToF 60
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62: 7(fvec4) Load 17(color)
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63: 7(fvec4) VectorTimesScalar 62 61
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Store 17(color) 63
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Branch 59
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59: Label
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66: 35(float) FConvert 65
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67: 35(float) FDiv 64 66
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68: 6(float) FConvert 67
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69: 7(fvec4) Load 17(color)
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70: 7(fvec4) CompositeConstruct 68 68 68 68
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71: 7(fvec4) FAdd 69 70
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Store 17(color) 71
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54: 24(ptr) AccessChain 53(dupUcol) 23
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55: 7(fvec4) Load 54
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56: 7(fvec4) Load 20(color)
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57: 7(fvec4) FAdd 56 55
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Store 20(color) 57
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58: 8(int) Load 28(size)
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59: 8(int) IAdd 58 50
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Store 28(size) 59
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SelectionMerge 62 None
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BranchConditional 60 61 62
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61: Label
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64: 6(float) ConvertUToF 63
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65: 7(fvec4) Load 20(color)
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66: 7(fvec4) VectorTimesScalar 65 64
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Store 20(color) 66
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Branch 62
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62: Label
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69: 38(float) FConvert 68
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70: 38(float) FDiv 67 69
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71: 6(float) FConvert 70
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72: 7(fvec4) Load 20(color)
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73: 7(fvec4) CompositeConstruct 71 71 71 71
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74: 7(fvec4) FAdd 72 73
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Store 20(color) 74
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Return
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FunctionEnd
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17(builtin_spec_constant(): 8(int) Function None 16
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18: Label
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76(result): 75(ptr) Variable Function
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Store 76(result) 77
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78: 8(int) Load 76(result)
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ReturnValue 78
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FunctionEnd
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@@ -8,6 +8,8 @@ layout(constant_id = 18) const float spFloat = 3.14;
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layout(constant_id = 19) const double spDouble = 3.1415926535897932384626433832795;
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layout(constant_id = 22) const uint scale = 2;
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layout(constant_id = 24) gl_MaxImageUnits;
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out vec4 color;
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out int size;
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@@ -41,3 +43,9 @@ void foo(vec4 p[arraySize])
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color *= dupScale;
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color += float(spDupDouble / spDupFloat);
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}
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int builtin_spec_constant()
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{
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int result = gl_MaxImageUnits;
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return result;
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}
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