[PATCH] D159329: [InstCombine] Recognize `(icmp eq/ne (and X, ~Mask), 0)` pattern in `foldICmpWithLowBitMaskedVal`

[Noah Goldstein via Phabricator via llvm-commits]

goldstein.w.n updated this revision to Diff 556703.
goldstein.w.n added a comment.

Rebase


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D159329/new/

https://reviews.llvm.org/D159329

Files:
  llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
  llvm/test/Transforms/InstCombine/icmp-and-lowbit-mask.ll
  llvm/test/Transforms/InstCombine/lshr-and-negC-icmpeq-zero.ll
  llvm/test/Transforms/InstCombine/lshr-and-signbit-icmpeq-zero.ll
  llvm/test/Transforms/InstCombine/shl-and-negC-icmpeq-zero.ll
  llvm/test/Transforms/InstCombine/shl-and-signbit-icmpeq-zero.ll

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