commit ff34d401ff385ef7173ca612432b4ea717fff690
author Richard Smith <richard-llvm@metafoo.co.uk> Thu Apr 12 05:08:17 2012 +0000
committer Richard Smith <richard-llvm@metafoo.co.uk> Thu Apr 12 05:08:17 2012 +0000
tree de759a7c65405730906e7d4ffd5f25cbbd5bcf69
parent b92bd4b3271b7892abe9fd8c74fb54a27ad702ab

Implement support for 18 of the GNU-compatible __atomic builtins.

This is not quite sufficient for libstdc++'s <atomic>: we still need
__atomic_test_and_set and __atomic_clear, and may need a more complete
__atomic_is_lock_free implementation.

We are also missing an implementation of __atomic_always_lock_free,
__atomic_nand_fetch, and __atomic_fetch_nand, but those aren't needed
for libstdc++.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154579 91177308-0d34-0410-b5e6-96231b3b80d8