================
@@ -2034,6 +2071,18 @@ static Value *convertValue(const DataLayout &DL,
IRBuilderTy &IRB, Value *V,
}
}
+ if (isa<ScalableVectorType>(NewTy) && isa<FixedVectorType>(OldTy)) {
+ auto *Ty = VectorType::getWithSizeAndScalar(cast<VectorType>(NewTy),
OldTy);
+ V = IRB.CreateInsertVector(Ty, PoisonValue::get(Ty), V, IRB.getInt64(0));
+ return IRB.CreateBitCast(V, NewTy);
+ }
+
+ if (isa<FixedVectorType>(NewTy) && isa<ScalableVectorType>(OldTy)) {
+ auto *Ty = VectorType::getWithSizeAndScalar(cast<VectorType>(OldTy),
NewTy);
+ V = IRB.CreateBitCast(V, Ty);
+ return IRB.CreateExtractVector(NewTy, V, IRB.getInt64(0));
+ }
----------------
paulwalker-arm wrote:
I've extended the coverage to input pointer casts but creating a wrapper
function so that existing uses of CreateBitCast are replaced with a variant
that supports bit casting between fixed and scalable vector types.
https://github.com/llvm/llvm-project/pull/130973
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