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https://github.com/KhronosGroup/glslang
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Add decorations to structs with buffer references
The containsPhysicalStorageBufferOrArray function now handles struct types correctly, checking their contents recursively for buffer reference types. As a result, OpVariables containing structs that have members that are buffer references now have the appropriate AliasedPointer or RestrictPointer decoration as per the spec. Fixes #3188
This commit is contained in:
Arcady Goldmints-Orlov
arcady-lunarg
parent
d1517d64cf
commit
9caca7a17b
@ -1373,7 +1373,7 @@ bool Builder::containsType(Id typeId, spv::Op typeOp, unsigned int width) const
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}
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// return true if the type is a pointer to PhysicalStorageBufferEXT or an
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// array of such pointers. These require restrict/aliased decorations.
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// contains such a pointer. These require restrict/aliased decorations.
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bool Builder::containsPhysicalStorageBufferOrArray(Id typeId) const
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{
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const Instruction& instr = *module.getInstruction(typeId);
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@ -1385,6 +1385,12 @@ bool Builder::containsPhysicalStorageBufferOrArray(Id typeId) const
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return getTypeStorageClass(typeId) == StorageClassPhysicalStorageBufferEXT;
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case OpTypeArray:
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return containsPhysicalStorageBufferOrArray(getContainedTypeId(typeId));
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case OpTypeStruct:
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for (int m = 0; m < instr.getNumOperands(); ++m) {
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if (containsPhysicalStorageBufferOrArray(instr.getIdOperand(m)))
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return true;
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}
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return false;
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default:
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return false;
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}
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@ -1,7 +1,7 @@
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spv.bufferhandle8.frag
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// Module Version 10000
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// Generated by (magic number): 8000b
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// Id's are bound by 27
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// Id's are bound by 39
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Capability Shader
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Capability PhysicalStorageBufferAddressesEXT
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@ -21,41 +21,46 @@ spv.bufferhandle8.frag
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MemberName 10(T1) 0 "x"
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Name 11 "T2"
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MemberName 11(T2) 0 "x"
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Name 13 "T3"
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MemberName 13(T3) 0 "Bindings"
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Name 15 "t3"
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Name 23 "t2"
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MemberName 23(t2) 0 "f"
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MemberName 23(t2) 1 "g"
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Name 24 "blockType"
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MemberName 24(blockType) 0 "a"
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MemberName 24(blockType) 1 "b"
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MemberName 24(blockType) 2 "c"
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MemberName 24(blockType) 3 "d"
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MemberName 24(blockType) 4 "e"
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Name 26 "t"
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MemberDecorate 8(Blah) 0 Offset 0
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MemberDecorate 8(Blah) 1 Offset 8
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Name 13 "x"
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Name 14 "Blah"
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MemberName 14(Blah) 0 "t1"
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MemberName 14(Blah) 1 "t2"
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Name 16 "T3"
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MemberName 16(T3) 0 "Bindings"
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Name 18 "t3"
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Name 35 "t2"
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MemberName 35(t2) 0 "f"
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MemberName 35(t2) 1 "g"
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Name 36 "blockType"
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MemberName 36(blockType) 0 "a"
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MemberName 36(blockType) 1 "b"
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MemberName 36(blockType) 2 "c"
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MemberName 36(blockType) 3 "d"
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MemberName 36(blockType) 4 "e"
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Name 38 "t"
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MemberDecorate 10(T1) 0 Offset 0
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Decorate 10(T1) Block
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MemberDecorate 11(T2) 0 Offset 0
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Decorate 11(T2) Block
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Decorate 12 ArrayStride 16
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MemberDecorate 13(T3) 0 Offset 0
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Decorate 13(T3) Block
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Decorate 15(t3) DescriptorSet 0
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Decorate 15(t3) Binding 0
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MemberDecorate 23(t2) 0 Offset 0
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MemberDecorate 23(t2) 1 Offset 8
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Decorate 23(t2) Block
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MemberDecorate 24(blockType) 0 Offset 0
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MemberDecorate 24(blockType) 1 Offset 4
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MemberDecorate 24(blockType) 2 Offset 8
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MemberDecorate 24(blockType) 3 Offset 12
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MemberDecorate 24(blockType) 4 Offset 16
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Decorate 24(blockType) Block
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Decorate 26(t) DescriptorSet 0
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Decorate 26(t) Binding 0
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MemberDecorate 14(Blah) 0 Offset 0
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MemberDecorate 14(Blah) 1 Offset 8
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Decorate 15 ArrayStride 16
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MemberDecorate 16(T3) 0 Offset 0
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Decorate 16(T3) Block
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Decorate 18(t3) DescriptorSet 0
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Decorate 18(t3) Binding 0
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MemberDecorate 35(t2) 0 Offset 0
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MemberDecorate 35(t2) 1 Offset 8
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Decorate 35(t2) Block
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MemberDecorate 36(blockType) 0 Offset 0
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MemberDecorate 36(blockType) 1 Offset 4
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MemberDecorate 36(blockType) 2 Offset 8
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MemberDecorate 36(blockType) 3 Offset 12
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MemberDecorate 36(blockType) 4 Offset 16
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Decorate 36(blockType) Block
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Decorate 38(t) DescriptorSet 0
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Decorate 38(t) Binding 0
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Decorate 13(x) DecorationAliasedPointerEXT
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2: TypeVoid
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3: TypeFunction 2
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TypeForwardPointer 6 PhysicalStorageBufferEXT
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@ -66,24 +71,38 @@ spv.bufferhandle8.frag
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6: TypePointer PhysicalStorageBufferEXT 10(T1)
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11(T2): TypeStruct 9(int)
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7: TypePointer PhysicalStorageBufferEXT 11(T2)
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12: TypeRuntimeArray 8(Blah)
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13(T3): TypeStruct 12
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14: TypePointer StorageBuffer 13(T3)
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15(t3): 14(ptr) Variable StorageBuffer
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16: 9(int) Constant 0
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17: 9(int) Constant 1
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18: TypePointer StorageBuffer 8(Blah)
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TypeForwardPointer 22 PhysicalStorageBufferEXT
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23(t2): TypeStruct 22 22
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24(blockType): TypeStruct 9(int) 9(int) 9(int) 9(int) 9(int)
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22: TypePointer PhysicalStorageBufferEXT 24(blockType)
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25: TypePointer StorageBuffer 23(t2)
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26(t): 25(ptr) Variable StorageBuffer
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12: TypePointer Function 8(Blah)
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14(Blah): TypeStruct 6(ptr) 7(ptr)
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15: TypeRuntimeArray 14(Blah)
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16(T3): TypeStruct 15
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17: TypePointer StorageBuffer 16(T3)
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18(t3): 17(ptr) Variable StorageBuffer
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19: 9(int) Constant 0
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20: 9(int) Constant 2
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21: TypePointer StorageBuffer 14(Blah)
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25: TypePointer Function 6(ptr)
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28: 9(int) Constant 1
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29: TypePointer Function 7(ptr)
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TypeForwardPointer 34 PhysicalStorageBufferEXT
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35(t2): TypeStruct 34 34
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36(blockType): TypeStruct 9(int) 9(int) 9(int) 9(int) 9(int)
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34: TypePointer PhysicalStorageBufferEXT 36(blockType)
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37: TypePointer StorageBuffer 35(t2)
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38(t): 37(ptr) Variable StorageBuffer
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4(main): 2 Function None 3
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5: Label
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19: 18(ptr) AccessChain 15(t3) 16 17
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20: 8(Blah) Load 19
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21: 18(ptr) AccessChain 15(t3) 16 16
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Store 21 20
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13(x): 12(ptr) Variable Function
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22: 21(ptr) AccessChain 18(t3) 19 20
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23: 14(Blah) Load 22
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24: 6(ptr) CompositeExtract 23 0
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26: 25(ptr) AccessChain 13(x) 19
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Store 26 24
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27: 7(ptr) CompositeExtract 23 1
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30: 29(ptr) AccessChain 13(x) 28
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Store 30 27
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31: 21(ptr) AccessChain 18(t3) 19 28
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32: 14(Blah) Load 31
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33: 21(ptr) AccessChain 18(t3) 19 19
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Store 33 32
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Return
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FunctionEnd
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@ -27,6 +27,8 @@ layout(set=0, binding=0) buffer T3 {
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Blah Bindings[];
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} t3;
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void main() {
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Blah x = t3.Bindings[2];
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t3.Bindings[0] = t3.Bindings[1];
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}
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