[PATCH] D106234: [PowerPC] Fallback to base's implementation of shouldExpandAtomicCmpXchgInIR and shouldExpandAtomicCmpXchgInIR

[Kai Luo via Phabricator via llvm-commits]

lkail created this revision.
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If we can't decided `shouldExpandAtomicCmpXchgInIR` or `shouldExpandAtomicCmpXchgInIR` in PPC's implementation, resort to base's implementation.

This fixes internal build of OpenMP which uses atomic operations on float.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D106234

Files:
  llvm/lib/Target/PowerPC/PPCISelLowering.cpp
  llvm/test/CodeGen/PowerPC/atomic-float.ll

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