[PATCH] D155704: [InstCombine] Fold icmp or sub chain ((x1 - y1) | (x2 - y2)) == 0

[Maksim Kita via Phabricator via llvm-commits]

kitaisreal created this revision.
kitaisreal added reviewers: nikic, goldstein.w.n.
kitaisreal added projects: All, LLVM.
Herald added subscribers: StephenFan, hiraditya.
kitaisreal requested review of this revision.
Herald added a subscriber: llvm-commits.

Alive proofs https://alive2.llvm.org/ce/z/B7GSye, https://alive2.llvm.org/ce/z/ErQb6s.


https://reviews.llvm.org/D155704

Files:
  llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
  llvm/test/Transforms/InstCombine/icmp-or.ll

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