[PATCH] D138542: [InstSimplify] Use dominate condtion to simplify xor/sub

[chenglin.bi via Phabricator via llvm-commits]

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Fix #56795


https://reviews.llvm.org/D138542

Files:
  llvm/lib/Analysis/InstructionSimplify.cpp
  llvm/test/Transforms/InstSimplify/domcondition.ll

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