-/* Copyright (C) 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2005-2017 Free Software Foundation, Inc.
Contributed by Richard Henderson <rth@redhat.com>.
- This file is part of the GNU OpenMP Library (libgomp).
+ This file is part of the GNU Offloading and Multi Processing Library
+ (libgomp).
Libgomp is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
- You should have received a copy of the GNU Lesser General Public License
- along with libgomp; see the file COPYING.LIB. If not, write to the
- Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- MA 02110-1301, USA. */
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
-/* As a special exception, if you link this library with other files, some
- of which are compiled with GCC, to produce an executable, this library
- does not by itself cause the resulting executable to be covered by the
- GNU General Public License. This exception does not however invalidate
- any other reasons why the executable file might be covered by the GNU
- General Public License. */
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
/* This file handles the SECTIONS construct. */
{
ws->sched = GFS_DYNAMIC;
ws->chunk_size = 1;
- ws->end = count + 1;
+ ws->end = count + 1L;
ws->incr = 1;
ws->next = 1;
+#ifdef HAVE_SYNC_BUILTINS
+ /* Prepare things to make each iteration faster. */
+ if (sizeof (long) > sizeof (unsigned))
+ ws->mode = 1;
+ else
+ {
+ struct gomp_thread *thr = gomp_thread ();
+ struct gomp_team *team = thr->ts.team;
+ long nthreads = team ? team->nthreads : 1;
+
+ ws->mode = ((nthreads | ws->end)
+ < 1UL << (sizeof (long) * __CHAR_BIT__ / 2 - 1));
+ }
+#else
+ ws->mode = 0;
+#endif
}
/* This routine is called when first encountering a sections construct
long s, e, ret;
if (gomp_work_share_start (false))
- gomp_sections_init (thr->ts.work_share, count);
+ {
+ gomp_sections_init (thr->ts.work_share, count);
+ gomp_work_share_init_done ();
+ }
+#ifdef HAVE_SYNC_BUILTINS
+ if (gomp_iter_dynamic_next (&s, &e))
+ ret = s;
+ else
+ ret = 0;
+#else
+ gomp_mutex_lock (&thr->ts.work_share->lock);
if (gomp_iter_dynamic_next_locked (&s, &e))
ret = s;
else
ret = 0;
-
gomp_mutex_unlock (&thr->ts.work_share->lock);
+#endif
return ret;
}
unsigned
GOMP_sections_next (void)
{
- struct gomp_thread *thr = gomp_thread ();
long s, e, ret;
+#ifdef HAVE_SYNC_BUILTINS
+ if (gomp_iter_dynamic_next (&s, &e))
+ ret = s;
+ else
+ ret = 0;
+#else
+ struct gomp_thread *thr = gomp_thread ();
+
gomp_mutex_lock (&thr->ts.work_share->lock);
if (gomp_iter_dynamic_next_locked (&s, &e))
ret = s;
else
ret = 0;
gomp_mutex_unlock (&thr->ts.work_share->lock);
+#endif
return ret;
}
GOMP_parallel_sections_start (void (*fn) (void *), void *data,
unsigned num_threads, unsigned count)
{
- struct gomp_work_share *ws;
+ struct gomp_team *team;
- num_threads = gomp_resolve_num_threads (num_threads);
- if (num_threads > count)
- num_threads = count;
+ num_threads = gomp_resolve_num_threads (num_threads, count);
+ team = gomp_new_team (num_threads);
+ gomp_sections_init (&team->work_shares[0], count);
+ gomp_team_start (fn, data, num_threads, 0, team);
+}
- ws = gomp_new_work_share (false, num_threads);
- gomp_sections_init (ws, count);
- gomp_team_start (fn, data, num_threads, ws);
+ialias_redirect (GOMP_parallel_end)
+
+void
+GOMP_parallel_sections (void (*fn) (void *), void *data,
+ unsigned num_threads, unsigned count, unsigned flags)
+{
+ struct gomp_team *team;
+
+ num_threads = gomp_resolve_num_threads (num_threads, count);
+ team = gomp_new_team (num_threads);
+ gomp_sections_init (&team->work_shares[0], count);
+ gomp_team_start (fn, data, num_threads, flags, team);
+ fn (data);
+ GOMP_parallel_end ();
}
/* The GOMP_section_end* routines are called after the thread is told
- that all sections are complete. This first version synchronizes
+ that all sections are complete. The first two versions synchronize
all threads; the nowait version does not. */
void
gomp_work_share_end ();
}
+bool
+GOMP_sections_end_cancel (void)
+{
+ return gomp_work_share_end_cancel ();
+}
+
void
GOMP_sections_end_nowait (void)
{