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 53
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// Id's are bound by 52
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Source GLSL 130
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Capability Shader
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@ -14,69 +14,67 @@ 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 10 "texColor"
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Name 15 "color"
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Name 26 "inColor"
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Name 36 "alpha"
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Name 47 "gl_FragColor"
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Name 52 "texSampler2D"
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Decorate 47(gl_FragColor) BuiltIn FragColor
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Decorate 52(texSampler2D) NoStaticUse
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Name 9 "texColor"
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Name 14 "color"
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Name 25 "inColor"
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Name 35 "alpha"
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Name 46 "gl_FragColor"
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Name 51 "texSampler2D"
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Decorate 46(gl_FragColor) BuiltIn FragColor
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Decorate 51(texSampler2D) NoStaticUse
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2: TypeVoid
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3: TypeFunction 2
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7: TypeFloat 32
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8: TypeVector 7(float) 4
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9: TypePointer Function 8(fvec4)
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11: TypeInt 32 0
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12: 11(int) Constant 6
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13: TypeArray 8(fvec4) 12
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14: TypePointer UniformConstant 13
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15(color): 14(ptr) Variable UniformConstant
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16: TypeInt 32 1
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17: 16(int) Constant 1
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18: TypePointer UniformConstant 8(fvec4)
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24: TypeVector 7(float) 3
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25: TypePointer UniformConstant 24(fvec3)
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26(inColor): 25(ptr) Variable UniformConstant
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33: 11(int) Constant 16
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34: TypeArray 7(float) 33
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35: TypePointer UniformConstant 34
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36(alpha): 35(ptr) Variable UniformConstant
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37: 16(int) Constant 12
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38: TypePointer UniformConstant 7(float)
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46: TypePointer Output 8(fvec4)
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47(gl_FragColor): 46(ptr) Variable Output
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49: TypeImage 7(float) 2D sampled format:Unknown
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50: TypeSampledImage 49
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51: TypePointer UniformConstant 50
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52(texSampler2D): 51(ptr) Variable UniformConstant
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6: TypeFloat 32
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7: TypeVector 6(float) 4
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8: TypePointer Function 7(fvec4)
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10: TypeInt 32 0
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11: 10(int) Constant 6
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12: TypeArray 7(fvec4) 11
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13: TypePointer UniformConstant 12
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14(color): 13(ptr) Variable UniformConstant
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15: TypeInt 32 1
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16: 15(int) Constant 1
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17: TypePointer UniformConstant 7(fvec4)
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23: TypeVector 6(float) 3
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24: TypePointer UniformConstant 23(fvec3)
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25(inColor): 24(ptr) Variable UniformConstant
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32: 10(int) Constant 16
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33: TypeArray 6(float) 32
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34: TypePointer UniformConstant 33
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35(alpha): 34(ptr) Variable UniformConstant
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36: 15(int) Constant 12
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37: TypePointer UniformConstant 6(float)
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45: TypePointer Output 7(fvec4)
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46(gl_FragColor): 45(ptr) Variable Output
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48: TypeImage 6(float) 2D sampled format:Unknown
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49: TypeSampledImage 48
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50: TypePointer UniformConstant 49
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51(texSampler2D): 50(ptr) Variable UniformConstant
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4(main): 2 Function None 3
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5: Label
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10(texColor): 9(ptr) Variable Function
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19: 18(ptr) AccessChain 15(color) 17
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20: 8(fvec4) Load 19
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21: 18(ptr) AccessChain 15(color) 17
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22: 8(fvec4) Load 21
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23: 8(fvec4) FAdd 20 22
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Store 10(texColor) 23
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27: 24(fvec3) Load 26(inColor)
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28: 8(fvec4) Load 10(texColor)
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29: 24(fvec3) VectorShuffle 28 28 0 1 2
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30: 24(fvec3) FAdd 29 27
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31: 8(fvec4) Load 10(texColor)
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32: 8(fvec4) VectorShuffle 31 30 4 5 6 3
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Store 10(texColor) 32
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39: 38(ptr) AccessChain 36(alpha) 37
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40: 7(float) Load 39
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41: 8(fvec4) Load 10(texColor)
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42: 7(float) CompositeExtract 41 3
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43: 7(float) FAdd 42 40
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44: 8(fvec4) Load 10(texColor)
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45: 8(fvec4) CompositeInsert 43 44 3
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Store 10(texColor) 45
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48: 8(fvec4) Load 10(texColor)
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Store 47(gl_FragColor) 48
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Branch 6
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6: Label
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9(texColor): 8(ptr) Variable Function
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18: 17(ptr) AccessChain 14(color) 16
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19: 7(fvec4) Load 18
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20: 17(ptr) AccessChain 14(color) 16
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21: 7(fvec4) Load 20
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22: 7(fvec4) FAdd 19 21
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Store 9(texColor) 22
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26: 23(fvec3) Load 25(inColor)
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27: 7(fvec4) Load 9(texColor)
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28: 23(fvec3) VectorShuffle 27 27 0 1 2
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29: 23(fvec3) FAdd 28 26
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30: 7(fvec4) Load 9(texColor)
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31: 7(fvec4) VectorShuffle 30 29 4 5 6 3
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Store 9(texColor) 31
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38: 37(ptr) AccessChain 35(alpha) 36
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39: 6(float) Load 38
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40: 7(fvec4) Load 9(texColor)
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41: 6(float) CompositeExtract 40 3
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42: 6(float) FAdd 41 39
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43: 7(fvec4) Load 9(texColor)
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44: 7(fvec4) CompositeInsert 42 43 3
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Store 9(texColor) 44
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47: 7(fvec4) Load 9(texColor)
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Store 46(gl_FragColor) 47
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Return
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FunctionEnd
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