[PATCH] D34918: [libc++] Avoid atomic built-ins for NO_THREADS build

[Jonathan Roelofs via Phabricator via llvm-commits]

jroelofs added a comment.

In https://reviews.llvm.org/D34918#801611, @weimingz wrote:

> @EricWF , do you mean factoring out the __sync_* functions like this?


@weimingz this refactoring LGTM. we can work out what the second set of definitions in __atomic_support looks like in another patch.


https://reviews.llvm.org/D34918