[PATCH] D45196: [libc++abi] Replace __sync_* functions with __libcpp_atomic_* functions.

[Saleem Abdulrasool via Phabricator via cfe-commits]

compnerd accepted this revision.
compnerd added a comment.
This revision is now accepted and ready to land.

I definitely like the clean up.  Not sure I understand the motivation for the `__libcpp_relaxed_store`, but I suppose thats because its a copy from libc++ where it may be more useful.


Repository:
  rCXXA libc++abi

https://reviews.llvm.org/D45196