[PATCH] D133328: [InstCombine] Fold icmp x, ~x and icmp ~x, x by testing the sign

[Tian Zhou via Phabricator via llvm-commits]

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[InstCombine] Fold icmp x, ~x and icmp ~x, x by testing the sign

Fixes #57532.

Examples:
https://alive2.llvm.org/ce/z/XBj9Pf
https://alive2.llvm.org/ce/z/UNkucP


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D133328

Files:
  llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
  llvm/test/Transforms/InstCombine/icmp-not.ll

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