diff options
| -rw-r--r-- | llvm/lib/IR/Value.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/IR/Value.cpp b/llvm/lib/IR/Value.cpp index eae697b2e4b..d36b7cd4c64 100644 --- a/llvm/lib/IR/Value.cpp +++ b/llvm/lib/IR/Value.cpp @@ -627,9 +627,10 @@ uint64_t Value::getPointerDereferenceableBytes(const DataLayout &DL, CanBeNull = false; if (const Argument *A = dyn_cast<Argument>(this)) { DerefBytes = A->getDereferenceableBytes(); - if (DerefBytes == 0 && A->hasByValAttr()) { + if (DerefBytes == 0 && (A->hasByValAttr() || A->hasStructRetAttr())) { Type *PT = cast<PointerType>(A->getType())->getElementType(); - DerefBytes = DL.getTypeStoreSize(PT); + if (PT->isSized()) + DerefBytes = DL.getTypeStoreSize(PT); } if (DerefBytes == 0) { DerefBytes = A->getDereferenceableOrNullBytes(); |
