[PATCH] D89381: [SCEV] Use nw flag and symbolic iteration count to sharpen ranges of AddRecs

[Max Kazantsev via Phabricator via llvm-commits]

mkazantsev updated this revision to Diff 298307.
mkazantsev marked an inline comment as done.
mkazantsev added a comment.

Added check to address Eli's comment. Now we make sure that we can *prove* nw.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D89381/new/

https://reviews.llvm.org/D89381

Files:
  llvm/include/llvm/Analysis/ScalarEvolution.h
  llvm/lib/Analysis/ScalarEvolution.cpp
  llvm/test/Analysis/ScalarEvolution/no-wrap-symbolic-becount.ll
  llvm/test/Transforms/IndVarSimplify/X86/eliminate-trunc.ll
  llvm/test/Transforms/IndVarSimplify/promote-iv-to-eliminate-casts.ll
  llvm/test/Transforms/IndVarSimplify/widen-loop-comp.ll

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