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comparison gcc/config/alpha/crtfastmath.c @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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-1:000000000000 0:a06113de4d67
1 /*
2 * Copyright (C) 2001, 2009 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
27 extern 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
32 static void __attribute__((constructor))
33 set_fast_math (void)
34 {
35 __ieee_set_fp_control (IEEE_MAP_DMZ | IEEE_MAP_UMZ);
36 }