[PATCH] D110488: [InstCombine] Canonicalize ((X & -X) - 1) --> (~X & (X - 1)) (PR51784)

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 455183.
RKSimon added a comment.

Use m_Add instead of m_c_Add as it'll canonicalise to RHS constant anyway


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D110488/new/

https://reviews.llvm.org/D110488

Files:
  llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
  llvm/test/Transforms/InstCombine/add-mask-neg.ll
  llvm/test/Transforms/InstCombine/ctpop-cttz.ll

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