commit fb86c4426b4a14ea84cff7b1c169cc2623255c2e
author Louis Dionne <ldionne@apple.com> Mon Mar 04 15:26:27 2019 +0000
committer Louis Dionne <ldionne@apple.com> Mon Mar 04 15:26:27 2019 +0000
tree 22e1c3e4275f7cac7390f5efac68dc6211dd11cf
parent d386d7e49ace0cbfbde23f7ebec4583973daf036

[libc++] decoupling Freestanding atomic<T> from libatomic.a

This patch introduces non-lockfree atomics that do not require using
an external libatomic. This work is done with the long-term goal of
allowing the use of <atomic> in freestanding environments.

Thanks to Olivier Giroux for the patch.
Differential Revision: https://reviews.llvm.org/D56913

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@355318 91177308-0d34-0410-b5e6-96231b3b80d8