[PATCH] D145890: [InstCombine] Generate better code for std::bit_floor from libstdc++

[Kazu Hirata via Phabricator via llvm-commits]

kazu updated this revision to Diff 512300.
kazu added a comment.

Add a comment to relax the requirement that X be nonzero.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D145890/new/

https://reviews.llvm.org/D145890

Files:
  llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
  llvm/test/Transforms/InstCombine/bit_floor.ll

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