1/*
2 * Copyright (C) 2001-2015 Free Software Foundation, Inc.
3 * Contributed by Richard Henderson (rth@redhat.com)
4 *
5 * This file is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 3, or (at your option) any
8 * later version.
9 *
10 * This file is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * General Public License for more details.
14 *
15 * Under Section 7 of GPL version 3, you are granted additional
16 * permissions described in the GCC Runtime Library Exception, version
17 * 3.1, as published by the Free Software Foundation.
18 *
19 * You should have received a copy of the GNU General Public License and
20 * a copy of the GCC Runtime Library Exception along with this program;
21 * see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
22 * <http://www.gnu.org/licenses/>.
23 */
24
25/* Assume OSF/1 compatible interfaces.  */
26
27extern void __ieee_set_fp_control (unsigned long int);
28
29#define IEEE_MAP_DMZ  (1UL<<12)       /* Map denorm inputs to zero */
30#define IEEE_MAP_UMZ  (1UL<<13)       /* Map underflowed outputs to zero */
31
32static void __attribute__((constructor))
33set_fast_math (void)
34{
35  __ieee_set_fp_control (IEEE_MAP_DMZ | IEEE_MAP_UMZ);
36}
37