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Generate separate stores for partially swizzled memory stores

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Full vector and fully specified vector swizzle stores are not affected by this change, only partial swizzles ie swizzles with fewer components than the vector being stored to.

Previously the vector being stored to loaded and any components not specified in the swizzle were used to create a full store to the vector.

While this change generates more SPIR-V instructions, it is necessary for correctness.

Fixes #2518.
This commit is contained in:
Jeremy Hayes 2021-07-16 15:07:16 -06:00
parent 9158061398
commit 6d5b40f051
50 changed files with 31343 additions and 26594 deletions
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SPIRV/SpvBuilder.h
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@ -202,6 +202,7 @@ public:
StorageClass getTypeStorageClass(Id typeId) const { return module.getStorageClass(typeId); }
ImageFormat getImageTypeFormat(Id typeId) const
{ return (ImageFormat)module.getInstruction(typeId)->getImmediateOperand(6); }
Id getResultingAccessChainType() const;
bool isPointer(Id resultId) const { return isPointerType(getTypeId(resultId)); }
bool isScalar(Id resultId) const { return isScalarType(getTypeId(resultId)); }