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[Bug libstdc++/54861] std::atomic_signal_fence(std::memory_order_seq_cst) issues unnecessary mfence
- From: "amacleod at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 09 Oct 2012 18:40:16 +0000
- Subject: [Bug libstdc++/54861] std::atomic_signal_fence(std::memory_order_seq_cst) issues unnecessary mfence
- Auto-submitted: auto-generated
- References: <bug-54861-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54861
--- Comment #2 from Andrew Macleod <amacleod at redhat dot com> 2012-10-09 18:40:16 UTC ---
Author: amacleod
Date: Tue Oct 9 18:40:02 2012
New Revision: 192268
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192268
Log:
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.
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/bits/atomic_base.h