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Revert "Treat sret arguments as being dereferenceable in getPointerDereferenceableBytes()"

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This reverts commit 8b7a7660a3904b2088bc594311bcea2c651def08.

I didn't mean to commit this.

llvm-svn: 320944
This commit is contained in:
Bjorn Steinbrink 2017-12-17 15:16:51 +00:00
parent 7a3b9e8241
commit 65ee49e8fb
1 changed files with 2 additions and 3 deletions
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5
lib/IR/Value.cpp
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@ -627,10 +627,9 @@ 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() || A->hasStructRetAttr())) {
if (DerefBytes == 0 && A->hasByValAttr()) {
Type *PT = cast<PointerType>(A->getType())->getElementType();
if (PT->isSized())
DerefBytes = DL.getTypeStoreSize(PT);
DerefBytes = DL.getTypeStoreSize(PT);
}
if (DerefBytes == 0) {
DerefBytes = A->getDereferenceableOrNullBytes();