[PATCH] D151690: [LoopIdiom] Freeze BitPos if !isGuaranteedNotToBeUndefOrPoison

[luxufan via Phabricator via llvm-commits]

StephenFan updated this revision to Diff 529168.
StephenFan added a comment.

Return false if InsertPt is nullptr


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D151690/new/

https://reviews.llvm.org/D151690

Files:
  llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp
  llvm/test/Transforms/LoopIdiom/X86/left-shift-until-bittest.ll

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