[libcxx-commits] [libcxx] [libc++] Floating Point Atomic (PR #67799)

[Louis Dionne via libcxx-commits]

https://github.com/ldionne approved this pull request.

Let's ship this.

There are a few things that don't work especially with `long double`. However, this patch doesn't make the situation any worse than it already is, since people can already witness the broken behavior with e.g. `atomic<long double>::load()` today. I think this patch is in a really good shape and the fixes on top are going to be Clang or compiler-rt fixes.

https://github.com/llvm/llvm-project/pull/67799