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author | Dan Albert <danalbert@google.com> | 2015-06-17 11:09:54 -0700 |
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committer | Dan Albert <danalbert@google.com> | 2015-06-17 14:15:22 -0700 |
commit | f378ebf14df0952eae870c9865bab8326aa8f137 (patch) | |
tree | 31794503eb2a8c64ea5f313b93100f1163afcffb /gcc-4.2.1-5666.3/libgomp/work.c | |
parent | 2c58169824949d3a597d9fa81931e001ef9b1bd0 (diff) | |
download | toolchain_gcc-f378ebf14df0952eae870c9865bab8326aa8f137.tar.gz toolchain_gcc-f378ebf14df0952eae870c9865bab8326aa8f137.tar.bz2 toolchain_gcc-f378ebf14df0952eae870c9865bab8326aa8f137.zip |
Delete old versions of GCC.
Change-Id: I710f125d905290e1024cbd67f48299861790c66c
Diffstat (limited to 'gcc-4.2.1-5666.3/libgomp/work.c')
-rw-r--r-- | gcc-4.2.1-5666.3/libgomp/work.c | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/gcc-4.2.1-5666.3/libgomp/work.c b/gcc-4.2.1-5666.3/libgomp/work.c deleted file mode 100644 index cd20c9dbe..000000000 --- a/gcc-4.2.1-5666.3/libgomp/work.c +++ /dev/null @@ -1,223 +0,0 @@ -/* Copyright (C) 2005 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 contains routines to manage the work-share queue for a team - of threads. */ - -#include "libgomp.h" -#include <stdlib.h> -#include <string.h> - - -/* Create a new work share structure. */ - -struct gomp_work_share * -gomp_new_work_share (bool ordered, unsigned nthreads) -{ - struct gomp_work_share *ws; - size_t size; - - size = sizeof (*ws); - if (ordered) - size += nthreads * sizeof (ws->ordered_team_ids[0]); - - ws = gomp_malloc_cleared (size); - gomp_mutex_init (&ws->lock); - ws->ordered_owner = -1; - - return ws; -} - - -/* Free a work share structure. */ - -static void -free_work_share (struct gomp_work_share *ws) -{ - gomp_mutex_destroy (&ws->lock); - free (ws); -} - - -/* The current thread is ready to begin the next work sharing construct. - In all cases, thr->ts.work_share is updated to point to the new - structure. In all cases the work_share lock is locked. Return true - if this was the first thread to reach this point. */ - -bool -gomp_work_share_start (bool ordered) -{ - struct gomp_thread *thr = gomp_thread (); - struct gomp_team *team = thr->ts.team; - struct gomp_work_share *ws; - unsigned ws_index, ws_gen; - - /* Work sharing constructs can be orphaned. */ - if (team == NULL) - { - ws = gomp_new_work_share (ordered, 1); - thr->ts.work_share = ws; - thr->ts.static_trip = 0; - gomp_mutex_lock (&ws->lock); - return true; - } - - gomp_mutex_lock (&team->work_share_lock); - - /* This thread is beginning its next generation. */ - ws_gen = ++thr->ts.work_share_generation; - - /* If this next generation is not newer than any other generation in - the team, then simply reference the existing construct. */ - if (ws_gen - team->oldest_live_gen < team->num_live_gen) - { - ws_index = ws_gen & team->generation_mask; - ws = team->work_shares[ws_index]; - thr->ts.work_share = ws; - thr->ts.static_trip = 0; - - gomp_mutex_lock (&ws->lock); - gomp_mutex_unlock (&team->work_share_lock); - - return false; - } - - /* Resize the work shares queue if we've run out of space. */ - if (team->num_live_gen++ == team->generation_mask) - { - team->work_shares = gomp_realloc (team->work_shares, - 2 * team->num_live_gen - * sizeof (*team->work_shares)); - - /* Unless oldest_live_gen is zero, the sequence of live elements - wraps around the end of the array. If we do nothing, we break - lookup of the existing elements. Fix that by unwrapping the - data from the front to the end. */ - if (team->oldest_live_gen > 0) - memcpy (team->work_shares + team->num_live_gen, - team->work_shares, - (team->oldest_live_gen & team->generation_mask) - * sizeof (*team->work_shares)); - - team->generation_mask = team->generation_mask * 2 + 1; - } - - ws_index = ws_gen & team->generation_mask; - ws = gomp_new_work_share (ordered, team->nthreads); - thr->ts.work_share = ws; - thr->ts.static_trip = 0; - team->work_shares[ws_index] = ws; - - gomp_mutex_lock (&ws->lock); - gomp_mutex_unlock (&team->work_share_lock); - - return true; -} - - -/* The current thread is done with its current work sharing construct. - This version does imply a barrier at the end of the work-share. */ - -void -gomp_work_share_end (void) -{ - struct gomp_thread *thr = gomp_thread (); - struct gomp_team *team = thr->ts.team; - struct gomp_work_share *ws = thr->ts.work_share; - bool last; - - thr->ts.work_share = NULL; - - /* Work sharing constructs can be orphaned. */ - if (team == NULL) - { - free_work_share (ws); - return; - } - - last = gomp_barrier_wait_start (&team->barrier); - - if (last) - { - unsigned ws_index; - - ws_index = thr->ts.work_share_generation & team->generation_mask; - team->work_shares[ws_index] = NULL; - team->oldest_live_gen++; - team->num_live_gen = 0; - - free_work_share (ws); - } - - gomp_barrier_wait_end (&team->barrier, last); -} - - -/* The current thread is done with its current work sharing construct. - This version does NOT imply a barrier at the end of the work-share. */ - -void -gomp_work_share_end_nowait (void) -{ - struct gomp_thread *thr = gomp_thread (); - struct gomp_team *team = thr->ts.team; - struct gomp_work_share *ws = thr->ts.work_share; - unsigned completed; - - thr->ts.work_share = NULL; - - /* Work sharing constructs can be orphaned. */ - if (team == NULL) - { - free_work_share (ws); - return; - } - -#ifdef HAVE_SYNC_BUILTINS - completed = __sync_add_and_fetch (&ws->threads_completed, 1); -#else - gomp_mutex_lock (&ws->lock); - completed = ++ws->threads_completed; - gomp_mutex_unlock (&ws->lock); -#endif - - if (completed == team->nthreads) - { - unsigned ws_index; - - gomp_mutex_lock (&team->work_share_lock); - - ws_index = thr->ts.work_share_generation & team->generation_mask; - team->work_shares[ws_index] = NULL; - team->oldest_live_gen++; - team->num_live_gen--; - - gomp_mutex_unlock (&team->work_share_lock); - - free_work_share (ws); - } -} |