32 lines
1.2 KiB
C
32 lines
1.2 KiB
C
/* Oversized reductions lock variable
|
|
Copyright (C) 2015-2016 Free Software Foundation, Inc.
|
|
Contributed by Mentor Graphics.
|
|
|
|
This file is part of GCC.
|
|
|
|
GCC 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.
|
|
|
|
GCC 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/>. */
|
|
|
|
|
|
/* We use a global lock variable for reductions on objects larger than
|
|
64 bits. Until and unless proven that lock contention for
|
|
different reduction is a problem, a single lock will suffice. */
|
|
|
|
unsigned volatile __reduction_lock = 0;
|