================
@@ -4772,6 +4788,76 @@ Sema::PerformImplicitConversion(Expr *From, QualType
ToType,
llvm_unreachable("Improper second standard conversion");
}
+ if (SCS.Element != ICK_Identity) {
+ // If SCS.Element is not ICK_Identity the To and From types must be HLSL
+ // vectors or matrices. HLSL matrices aren't yet supported so this code
only
+ // handles vectors for now.
+
+ assert(From->getType()->isVectorType() && ToType->isVectorType() &&
+ "Element conversion is only supported for vector types.");
+ assert(From->getType()->getAs<VectorType>()->getNumElements() ==
+ ToType->getAs<VectorType>()->getNumElements() &&
+ "Element conversion is only supported for vectors with the same "
+ "element counts.");
+ QualType FromElTy = From->getType()->getAs<VectorType>()->getElementType();
+ unsigned NumElts = ToType->getAs<VectorType>()->getNumElements();
+ switch (SCS.Element) {
+ case ICK_Identity:
+ // Nothing to do.
+ break;
----------------
bogner wrote:
`SCS.Element == ICK_Identity` is unreachable - we checked above
https://github.com/llvm/llvm-project/pull/71098
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