[PATCH] D138483: Use poison instead of undef as placeholder in AtomicExpandPass

[Manuel Brito via Phabricator via llvm-commits]

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Replacing instances of undef with poison, where it is used as a placeholder for struct construction.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D138483

Files:
  llvm/lib/CodeGen/AtomicExpandPass.cpp
  llvm/test/Transforms/AtomicExpand/X86/expand-atomic-non-integer.ll

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