[PATCH] D56355: [InstCombine] Simplify cttz/ctlz + icmp ugt/ult into mask check

[Nikita Popov via Phabricator via llvm-commits]

nikic updated this revision to Diff 180373.
nikic added a comment.

Split up functions for eq and non-eq icmps. Handle ctlz separately from cttz by going directly to the form using only a comparison. Rebase over improved tests with multiuse and vector variants.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D56355/new/

https://reviews.llvm.org/D56355

Files:
  lib/Transforms/InstCombine/InstCombineCompares.cpp
  lib/Transforms/InstCombine/InstCombineInternal.h
  test/Transforms/InstCombine/cmp-intrinsic.ll

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