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[Bug libgomp/51298] libgomp team_barrier locking failures
- From: "amodra at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 30 Nov 2011 04:44:18 +0000
- Subject: [Bug libgomp/51298] libgomp team_barrier locking failures
- Auto-submitted: auto-generated
- References: <bug-51298-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51298
--- Comment #1 from Alan Modra <amodra at gcc dot gnu.org> 2011-11-30 04:44:18 UTC ---
Author: amodra
Date: Wed Nov 30 04:44:13 2011
New Revision: 181833
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181833
Log:
PR libgomp/51298
* config/linux/bar.h: Use atomic rather than sync builtins.
* config/linux/bar.c: Likewise. Add missing acquire
synchronisation on generation field.
* task.c (gomp_barrier_handle_tasks): Regain lock so as to not
double unlock.
Modified:
trunk/libgomp/ChangeLog
trunk/libgomp/config/linux/bar.c
trunk/libgomp/config/linux/bar.h
trunk/libgomp/task.c