[PATCH] D125111: [SLP] Make reordering aware of external vectorizable scalar stores.

[Valeriy Dmitriev via Phabricator via llvm-commits]

vdmitrie added a comment.

F22999714: reduced.ll <https://reviews.llvm.org/F22999714>

to reproduce crash: opt -slp-vectorizer  -disable-output reduced.ll
Fails on assertion:
... llvm-project/llvm/include/llvm/ADT/DenseMap.h:1244: llvm::DenseMapIterator<KeyT, ValueT, KeyInfoT, Bucket, IsConst>::value_type* llvm::DenseMapIterator<KeyT, ValueT, KeyInfoT, Bucket, IsConst>::operator->() const [with KeyT = const llvm::slpvectorizer::BoUpSLP::TreeEntry*; ValueT = llvm::SmallVector<unsigned int, 4>; KeyInfoT = llvm::DenseMapInfo<const llvm::slpvectorizer::BoUpSLP::TreeEntry*, void>; Bucket = llvm::detail::DenseMapPair<const llvm::slpvectorizer::BoUpSLP::TreeEntry*, llvm::SmallVector<unsigned int, 4> >; bool IsConst = false; llvm::DenseMapIterator<KeyT, ValueT, KeyInfoT, Bucket, IsConst>::pointer = llvm::detail::DenseMapPair<const llvm::slpvectorizer::BoUpSLP::TreeEntry*, llvm::SmallVector<unsigned int, 4> >*; llvm::DenseMapIterator<KeyT, ValueT, KeyInfoT, Bucket, IsConst>::value_type = llvm::detail::DenseMapPair<const llvm::slpvectorizer::BoUpSLP::TreeEntry*, llvm::SmallVector<unsigned int, 4> >]: Assertion `Ptr != End && "dereferencing end() iterator"' failed.


Repository:
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https://reviews.llvm.org/D125111