[PATCH] D105216: [ScalarEvolution] Fix overflow in computeBECount.

[Eli Friedman via Phabricator via llvm-commits]

efriedma updated this revision to Diff 357646.
efriedma edited the summary of this revision.
efriedma added a comment.

Updated to fix the miscompile.  This unfortunately involves yet another complicated proof...


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D105216/new/

https://reviews.llvm.org/D105216

Files:
  llvm/include/llvm/Analysis/ScalarEvolution.h
  llvm/lib/Analysis/ScalarEvolution.cpp
  llvm/test/Analysis/ScalarEvolution/2008-11-18-Stride1.ll
  llvm/test/Analysis/ScalarEvolution/2008-11-18-Stride2.ll
  llvm/test/Analysis/ScalarEvolution/trip-count-unknown-stride.ll
  llvm/test/Transforms/LoopReroll/nonconst_lb.ll
  llvm/test/Transforms/LoopVectorize/pr46525-expander-insertpoint.ll

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