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[Bug libgomp/56073] SPEComp2012 376.kdtree fails to complete


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56073

--- Comment #1 from Alan Modra <amodra at gcc dot gnu.org> 2013-01-22 11:41:57 UTC ---
Author: amodra
Date: Tue Jan 22 11:41:53 2013
New Revision: 195370

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195370
Log:
    PR libgomp/51376
    PR libgomp/56073
    * task.c (GOMP_task): Revert 2011-12-09 change.
    (GOMP_taskwait): Likewise.  Instead use atomic load with acquire
    barrier to read task->children..
    (gomp_barrier_handle_tasks): ..and matching atomic store with
    release barrier here when setting parent->children to NULL.


Modified:
    trunk/libgomp/ChangeLog
    trunk/libgomp/task.c


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