[PATCH] D57820: [AArch64] Use CAS loops for all atomic operations when available.

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

The atomics documentation is out of date; the implementation was changed to lower "unsupported" atomic operations to __atomic_*& calls.


Repository:
  rL LLVM

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  https://reviews.llvm.org/D57820/new/

https://reviews.llvm.org/D57820