[PATCH] D102279: [InstCombine] Support one-hot merge for logical and/or

[Nikita Popov via Phabricator via llvm-commits]

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If a logical and/or is used, we need to be careful not to propagate a potential poison value from the RHS by inserting a freeze instruction. Otherwise it works the same way as bitwise and/or.

This is intended to address the regression reported at https://reviews.llvm.org/D101191#2751002.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D102279

Files:
  llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
  llvm/lib/Transforms/InstCombine/InstCombineInternal.h
  llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
  llvm/test/Transforms/InstCombine/onehot_merge.ll

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