[PATCH] D62818: [InstCombine] Introduce fold for icmp pred (and X, (sh signbit, Y)), 0.

[Huihui Zhang via Phabricator via llvm-commits]

huihuiz updated this revision to Diff 208252.
huihuiz added a comment.

Generalize InstCombiner::foldAndOrOfICmpsOfAndWithPow2() in D64275 <https://reviews.llvm.org/D64275>


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D62818/new/

https://reviews.llvm.org/D62818

Files:
  llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
  llvm/test/Transforms/InstCombine/onehot_merge.ll
  llvm/test/Transforms/InstCombine/signbit-lshr-and-icmpeq-zero.ll
  llvm/test/Transforms/InstCombine/signbit-shl-and-icmpeq-zero.ll

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