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Diffstat (limited to 'gcc-4.4.3/libgomp/sections.c')
-rw-r--r-- | gcc-4.4.3/libgomp/sections.c | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/gcc-4.4.3/libgomp/sections.c b/gcc-4.4.3/libgomp/sections.c deleted file mode 100644 index 7acd441de..000000000 --- a/gcc-4.4.3/libgomp/sections.c +++ /dev/null @@ -1,143 +0,0 @@ -/* Copyright (C) 2005, 2007, 2008, 2009 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 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 General Public License for - more details. - - 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. - - 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. */ - -#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); - 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; -} - -/* 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) -{ - 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; -} - -/* 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_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, team); -} - -/* 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 (); -} |