SPV return from main: Simplify a legacy design such returns are not jumps to exit block.
Structured control-flow rules allow leaving the middle of a construct through a return, but not through a jump to a block that does a return. Addresses issue #58.
This commit is contained in:
John Kessenich
parent
5f5b205ce9
commit
e770b3e6cf
74 changed files with 9648 additions and 9816 deletions
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@ -5,7 +5,7 @@ Linked fragment stage:
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// Module Version 99
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// Generated by (magic number): 51a00bb
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// Id's are bound by 97
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// Id's are bound by 96
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Source GLSL 140
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Capability Shader
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@ -14,139 +14,137 @@ Linked fragment stage:
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EntryPoint Fragment 4 "main"
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ExecutionMode 4 OriginLowerLeft
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Name 4 "main"
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Name 9 "index"
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Name 15 "s"
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MemberName 15(s) 0 "y"
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Name 17 "str"
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Name 23 "t"
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Name 51 "x"
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Name 62 "y"
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Name 67 "z"
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Name 74 "v"
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Name 93 "gl_FragColor"
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Decorate 93(gl_FragColor) BuiltIn FragColor
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Name 8 "index"
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Name 14 "s"
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MemberName 14(s) 0 "y"
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Name 16 "str"
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Name 22 "t"
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Name 50 "x"
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Name 61 "y"
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Name 66 "z"
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Name 73 "v"
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Name 92 "gl_FragColor"
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Decorate 92(gl_FragColor) BuiltIn FragColor
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2: TypeVoid
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3: TypeFunction 2
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7: TypeInt 32 1
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8: TypePointer Function 7(int)
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10: 7(int) Constant 5
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11: TypeFloat 32
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12: TypeInt 32 0
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13: 12(int) Constant 5
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14: TypeArray 11(float) 13
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15(s): TypeStruct 14
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16: TypePointer Function 15(s)
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18: 7(int) Constant 0
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19: 7(int) Constant 4
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20: 11(float) Constant 1073741824
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21: TypePointer Function 11(float)
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25: 7(int) Constant 1
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29: 11(float) Constant 1065353216
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72: TypeVector 11(float) 4
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73: TypePointer Function 72(fvec4)
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75: 11(float) Constant 1077936128
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76: 11(float) Constant 1082130432
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77: 72(fvec4) ConstantComposite 29 20 75 76
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92: TypePointer Output 72(fvec4)
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93(gl_FragColor): 92(ptr) Variable Output
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6: TypeInt 32 1
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7: TypePointer Function 6(int)
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9: 6(int) Constant 5
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10: TypeFloat 32
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11: TypeInt 32 0
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12: 11(int) Constant 5
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13: TypeArray 10(float) 12
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14(s): TypeStruct 13
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15: TypePointer Function 14(s)
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17: 6(int) Constant 0
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18: 6(int) Constant 4
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19: 10(float) Constant 1073741824
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20: TypePointer Function 10(float)
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24: 6(int) Constant 1
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28: 10(float) Constant 1065353216
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71: TypeVector 10(float) 4
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72: TypePointer Function 71(fvec4)
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74: 10(float) Constant 1077936128
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75: 10(float) Constant 1082130432
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76: 71(fvec4) ConstantComposite 28 19 74 75
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91: TypePointer Output 71(fvec4)
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92(gl_FragColor): 91(ptr) Variable Output
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4(main): 2 Function None 3
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5: Label
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9(index): 8(ptr) Variable Function
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17(str): 16(ptr) Variable Function
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23(t): 21(ptr) Variable Function
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51(x): 21(ptr) Variable Function
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62(y): 21(ptr) Variable Function
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67(z): 21(ptr) Variable Function
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74(v): 73(ptr) Variable Function
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Store 9(index) 10
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22: 21(ptr) AccessChain 17(str) 18 19
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Store 22 20
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24: 7(int) Load 9(index)
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26: 7(int) ISub 24 25
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Store 9(index) 26
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27: 21(ptr) AccessChain 17(str) 18 26
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28: 11(float) Load 27
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30: 11(float) FAdd 28 29
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Store 27 30
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Store 23(t) 30
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31: 11(float) Load 23(t)
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32: 21(ptr) AccessChain 17(str) 18 19
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33: 11(float) Load 32
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34: 11(float) FAdd 33 31
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35: 21(ptr) AccessChain 17(str) 18 19
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Store 35 34
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36: 21(ptr) AccessChain 17(str) 18 19
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37: 11(float) Load 36
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38: 11(float) FSub 37 29
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Store 36 38
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Store 23(t) 37
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39: 7(int) Load 9(index)
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40: 7(int) IAdd 39 25
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Store 9(index) 40
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41: 11(float) Load 23(t)
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42: 21(ptr) AccessChain 17(str) 18 39
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43: 11(float) Load 42
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44: 11(float) FAdd 43 41
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45: 21(ptr) AccessChain 17(str) 18 39
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Store 45 44
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46: 7(int) Load 9(index)
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47: 7(int) ISub 46 25
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Store 9(index) 47
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48: 21(ptr) AccessChain 17(str) 18 47
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49: 11(float) Load 48
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50: 11(float) FSub 49 29
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Store 48 50
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52: 21(ptr) AccessChain 17(str) 18 19
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53: 11(float) Load 52
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Store 51(x) 53
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54: 11(float) Load 51(x)
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55: 11(float) FAdd 54 29
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Store 51(x) 55
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56: 11(float) Load 51(x)
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57: 11(float) FSub 56 29
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Store 51(x) 57
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58: 11(float) Load 51(x)
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59: 11(float) FAdd 58 29
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Store 51(x) 59
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60: 11(float) Load 51(x)
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61: 11(float) FSub 60 29
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Store 51(x) 61
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63: 11(float) Load 51(x)
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64: 11(float) Load 51(x)
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65: 11(float) FAdd 64 29
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Store 51(x) 65
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66: 11(float) FMul 63 65
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Store 62(y) 66
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68: 11(float) Load 62(y)
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69: 11(float) Load 51(x)
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70: 11(float) FSub 69 29
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Store 51(x) 70
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71: 11(float) FMul 68 69
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Store 67(z) 71
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Store 74(v) 77
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78: 72(fvec4) Load 74(v)
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79: 11(float) CompositeExtract 78 2
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80: 11(float) FSub 79 29
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81: 72(fvec4) Load 74(v)
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82: 72(fvec4) CompositeInsert 80 81 2
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Store 74(v) 82
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83: 72(fvec4) Load 74(v)
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84: 72(fvec4) CompositeInsert 79 83 1
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Store 74(v) 84
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85: 72(fvec4) Load 74(v)
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86: 11(float) CompositeExtract 85 3
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87: 11(float) FSub 86 29
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88: 72(fvec4) Load 74(v)
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89: 72(fvec4) CompositeInsert 87 88 3
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Store 74(v) 89
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90: 72(fvec4) Load 74(v)
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91: 72(fvec4) CompositeInsert 87 90 0
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Store 74(v) 91
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94: 11(float) Load 67(z)
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95: 72(fvec4) Load 74(v)
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96: 72(fvec4) VectorTimesScalar 95 94
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Store 93(gl_FragColor) 96
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Branch 6
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6: Label
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8(index): 7(ptr) Variable Function
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16(str): 15(ptr) Variable Function
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22(t): 20(ptr) Variable Function
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50(x): 20(ptr) Variable Function
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61(y): 20(ptr) Variable Function
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66(z): 20(ptr) Variable Function
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73(v): 72(ptr) Variable Function
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Store 8(index) 9
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21: 20(ptr) AccessChain 16(str) 17 18
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Store 21 19
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23: 6(int) Load 8(index)
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25: 6(int) ISub 23 24
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Store 8(index) 25
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26: 20(ptr) AccessChain 16(str) 17 25
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27: 10(float) Load 26
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29: 10(float) FAdd 27 28
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Store 26 29
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Store 22(t) 29
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30: 10(float) Load 22(t)
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31: 20(ptr) AccessChain 16(str) 17 18
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32: 10(float) Load 31
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33: 10(float) FAdd 32 30
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34: 20(ptr) AccessChain 16(str) 17 18
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Store 34 33
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35: 20(ptr) AccessChain 16(str) 17 18
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36: 10(float) Load 35
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37: 10(float) FSub 36 28
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Store 35 37
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Store 22(t) 36
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38: 6(int) Load 8(index)
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39: 6(int) IAdd 38 24
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Store 8(index) 39
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40: 10(float) Load 22(t)
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41: 20(ptr) AccessChain 16(str) 17 38
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42: 10(float) Load 41
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43: 10(float) FAdd 42 40
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44: 20(ptr) AccessChain 16(str) 17 38
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Store 44 43
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45: 6(int) Load 8(index)
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46: 6(int) ISub 45 24
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Store 8(index) 46
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47: 20(ptr) AccessChain 16(str) 17 46
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48: 10(float) Load 47
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49: 10(float) FSub 48 28
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Store 47 49
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51: 20(ptr) AccessChain 16(str) 17 18
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52: 10(float) Load 51
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Store 50(x) 52
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53: 10(float) Load 50(x)
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54: 10(float) FAdd 53 28
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Store 50(x) 54
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55: 10(float) Load 50(x)
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56: 10(float) FSub 55 28
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Store 50(x) 56
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57: 10(float) Load 50(x)
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58: 10(float) FAdd 57 28
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Store 50(x) 58
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59: 10(float) Load 50(x)
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60: 10(float) FSub 59 28
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Store 50(x) 60
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62: 10(float) Load 50(x)
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63: 10(float) Load 50(x)
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64: 10(float) FAdd 63 28
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Store 50(x) 64
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65: 10(float) FMul 62 64
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Store 61(y) 65
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67: 10(float) Load 61(y)
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68: 10(float) Load 50(x)
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69: 10(float) FSub 68 28
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Store 50(x) 69
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70: 10(float) FMul 67 68
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Store 66(z) 70
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Store 73(v) 76
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77: 71(fvec4) Load 73(v)
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78: 10(float) CompositeExtract 77 2
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79: 10(float) FSub 78 28
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80: 71(fvec4) Load 73(v)
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81: 71(fvec4) CompositeInsert 79 80 2
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Store 73(v) 81
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82: 71(fvec4) Load 73(v)
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83: 71(fvec4) CompositeInsert 78 82 1
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Store 73(v) 83
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84: 71(fvec4) Load 73(v)
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85: 10(float) CompositeExtract 84 3
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86: 10(float) FSub 85 28
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87: 71(fvec4) Load 73(v)
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88: 71(fvec4) CompositeInsert 86 87 3
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Store 73(v) 88
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89: 71(fvec4) Load 73(v)
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90: 71(fvec4) CompositeInsert 86 89 0
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Store 73(v) 90
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93: 10(float) Load 66(z)
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94: 71(fvec4) Load 73(v)
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95: 71(fvec4) VectorTimesScalar 94 93
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Store 92(gl_FragColor) 95
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Return
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FunctionEnd
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