diff options
Diffstat (limited to 'gcc-4.2.1-5666.3/libgomp/sections.c')
-rw-r--r-- | gcc-4.2.1-5666.3/libgomp/sections.c | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/gcc-4.2.1-5666.3/libgomp/sections.c b/gcc-4.2.1-5666.3/libgomp/sections.c deleted file mode 100644 index 9ccc65e4b..000000000 --- a/gcc-4.2.1-5666.3/libgomp/sections.c +++ /dev/null @@ -1,131 +0,0 @@ -/* Copyright (C) 2005, 2007 Free Software Foundation, Inc. - Contributed by Richard Henderson <rth@redhat.com>. - - This file is part of the GNU OpenMP 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. - - 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 - 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. */ - -/* 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. */ - -/* This file handles the SECTIONS construct. */ - -#include "libgomp.h" - - -/* Initialize the given work share construct from the given arguments. */ - -static inline void -gomp_sections_init (struct gomp_work_share *ws, unsigned count) -{ - ws->sched = GFS_DYNAMIC; - ws->chunk_size = 1; - ws->end = count + 1; - ws->incr = 1; - ws->next = 1; -} - -/* This routine is called when first encountering a sections construct - that is not bound directly to a parallel construct. The first thread - that arrives will create the work-share construct; subsequent threads - will see the construct exists and allocate work from it. - - COUNT is the number of sections in this construct. - - Returns the 1-based section number for this thread to perform, or 0 if - all work was assigned to other threads prior to this thread's arrival. */ - -unsigned -GOMP_sections_start (unsigned count) -{ - struct gomp_thread *thr = gomp_thread (); - long s, e, ret; - - if (gomp_work_share_start (false)) - gomp_sections_init (thr->ts.work_share, count); - - if (gomp_iter_dynamic_next_locked (&s, &e)) - ret = s; - else - ret = 0; - - gomp_mutex_unlock (&thr->ts.work_share->lock); - - return ret; -} - -/* This routine is called when the thread completes processing of the - section currently assigned to it. If the work-share construct is - bound directly to a parallel construct, then the construct may have - been set up before the parallel. In which case, this may be the - first iteration for the thread. - - Returns the 1-based section number for this thread to perform, or 0 if - all work was assigned to other threads prior to this thread's arrival. */ - -unsigned -GOMP_sections_next (void) -{ - struct gomp_thread *thr = gomp_thread (); - long s, e, ret; - - 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); - - return ret; -} - -/* This routine pre-initializes a work-share construct to avoid one - synchronization once we get into the loop. */ - -void -GOMP_parallel_sections_start (void (*fn) (void *), void *data, - unsigned num_threads, unsigned count) -{ - struct gomp_work_share *ws; - - num_threads = gomp_resolve_num_threads (num_threads); - if (gomp_dyn_var && num_threads > count) - num_threads = count; - - ws = gomp_new_work_share (false, num_threads); - gomp_sections_init (ws, count); - gomp_team_start (fn, data, num_threads, ws); -} - -/* The GOMP_section_end* routines are called after the thread is told - that all sections are complete. This first version synchronizes - all threads; the nowait version does not. */ - -void -GOMP_sections_end (void) -{ - gomp_work_share_end (); -} - -void -GOMP_sections_end_nowait (void) -{ - gomp_work_share_end_nowait (); -} |