[PATCH] D149223: [PowerPC] Look through OR, AND, XOR instructions when checking a clear.

[Stefan Pintilie via Phabricator via llvm-commits]

stefanp created this revision.
stefanp added reviewers: nemanjai, lei, amyk.
Herald added subscribers: shchenz, kbarton, hiraditya.
Herald added a project: All.
stefanp requested review of this revision.
Herald added a project: LLVM.

This patch adds the additional step of looking through AND, OR, XOR
instructions when we check the number of leading zeros.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D149223

Files:
  llvm/lib/Target/PowerPC/PPCMIPeephole.cpp
  llvm/test/CodeGen/PowerPC/fp-strict-conv-f128.ll
  llvm/test/CodeGen/PowerPC/ppc-clear-before-return.ll

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