re PR libstdc++/54861 (std::atomic_signal_fence(std::memory_order_seq_cst) issues unnecessary mfence)


2012-10-09  Andrew MacLeod  <amacleod@redhat.com>

	PR libstdc++/54861
	* include/bits/atomic_base.h (atomic_signal_fence): Call
	__atomic_signal_fence instead of __atomic_thread_fence.

From-SVN: r192268