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33f47f42 | 1 | /* Oversized reductions lock variable |
a945c346 | 2 | Copyright (C) 2015-2024 Free Software Foundation, Inc. |
33f47f42 NS |
3 | Contributed by Mentor Graphics. |
4 | ||
5 | This file is part of GCC. | |
6 | ||
7 | GCC is free software; you can redistribute it and/or modify it under | |
8 | the terms of the GNU General Public License as published by the Free | |
9 | Software Foundation; either version 3, or (at your option) any later | |
10 | version. | |
11 | ||
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
16 | ||
17 | Under Section 7 of GPL version 3, you are granted additional | |
18 | permissions described in the GCC Runtime Library Exception, version | |
19 | 3.1, as published by the Free Software Foundation. | |
20 | ||
21 | You should have received a copy of the GNU General Public License and | |
22 | a copy of the GCC Runtime Library Exception along with this program; | |
23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | <http://www.gnu.org/licenses/>. */ | |
25 | ||
26 | ||
27 | /* We use a global lock variable for reductions on objects larger than | |
28 | 64 bits. Until and unless proven that lock contention for | |
29 | different reduction is a problem, a single lock will suffice. */ | |
30 | ||
31 | unsigned volatile __reduction_lock = 0; |