[PATCH] D105921: [SCEV] Handle zero stride correctly in howManyLessThans

[Arthur Eubanks via Phabricator via llvm-commits]

aeubanks added a comment.

I've bisected a crash to this change

  $ opt -passes='default<O3>' reduced.ll
  opt: ../../llvm/lib/Analysis/ScalarEvolution.cpp:10521: bool llvm::ScalarEvolution::isLoopEntryGuardedByCond(const llvm::Loop *, ICmpInst::Predica
  te, const llvm::SCEV *, const llvm::SCEV *): Assertion `isAvailableAtLoopEntry(RHS, L) && "RHS is not available at Loop Entry"' failed.

F17920613: reduced.ll <https://reviews.llvm.org/F17920613>


Repository:
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  https://reviews.llvm.org/D105921/new/

https://reviews.llvm.org/D105921