[PATCH] D144777: [InstCombine] Fold signbit test of a pow2 or zero

[Jun Zhang via Phabricator via llvm-commits]

junaire updated this revision to Diff 500773.
junaire added a comment.

Reuse existing code and add more tests.

Just a beginer to the middle-end so bear with me if I get things wrong!


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D144777/new/

https://reviews.llvm.org/D144777

Files:
  llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
  llvm/test/Transforms/InstCombine/fold-signbit-test-power2.ll
  llvm/test/Transforms/InstCombine/minmax-of-xor-x.ll

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