[PATCH] D155307: [InstCombine] Allow KnownBits to be propagated

[Paulo Matos via Phabricator via llvm-commits]

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Bug #63699 shows a hang on arm in instcombine because we do not
propagate known bits for fshl/fshr rotates. We perform the propagation
and add regression test.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D155307

Files:
  llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
  llvm/test/Transforms/InstCombine/2023-07-13-arm-infiniteloop.ll

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