[PATCH] D86383: [GlobalISel] Fold xor(cmp(pred, _, _), 1) -> cmp(inverse(pred), _, _)

Amara Emerson via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Aug 21 15:56:26 PDT 2020


aemerson created this revision.
aemerson added reviewers: paquette, arsenm.
aemerson added a project: LLVM.
Herald added subscribers: hiraditya, rovka.
aemerson requested review of this revision.
Herald added a subscriber: wdng.

This is needed for an upcoming change to how we translate conditional branches which might generate these.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D86383

Files:
  llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
  llvm/include/llvm/CodeGen/GlobalISel/MIPatternMatch.h
  llvm/include/llvm/Target/GlobalISel/Combine.td
  llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/prelegalizercombiner-invert-cmp.mir

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