================
@@ -3083,6 +3083,19 @@ ScalarExprEmitter::VisitUnaryExprOrTypeTraitExpr(
E->getTypeOfArgument()->getPointeeType()))
.getQuantity();
return llvm::ConstantInt::get(CGF.SizeTy, Alignment);
+ } else if (E->getKind() == UETT_VectorElements) {
+ // For scalable vectors, we don't know the size at compile time. We can use
+ // @llvm.vscale to calculate it at runtime.
+ if (E->getTypeOfArgument()->isSizelessVectorType()) {
----------------
erichkeane wrote:
Where do you handle non-sizeless vector types that make it here?
https://github.com/llvm/llvm-project/pull/69010
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