[libcxx-commits] [libcxx] [libc++] Fix bug in atomic_ref's calculation of lock_free-ness (PR #99570)

[Louis Dionne via libcxx-commits]

ldionne wrote:

@dalg24 We should also consider changing the required alignment of `atomic_ref` so as to make it lockfree more often, as mentioned by @EricWF 's (C) point above. The ideal time to make that change would be before we ship `atomic_ref` for the first time.

https://github.com/llvm/llvm-project/pull/99570