Mercurial > hg > CbC > CbC_gcc
view libgcc/config/aarch64/crtfastmath.c @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 1830386684a0 |
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/* * Copyright (C) 2014-2020 Free Software Foundation, Inc. * * This file 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. * * This file 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/>. */ #define _FPU_FPCR_FZ 0x1000000 #define _FPU_SETCW(fpcr) \ { \ __asm__ __volatile__ ("msr fpcr, %0" : : "r" (fpcr)); \ } static void __attribute__((constructor)) set_fast_math (void) { /* Flush to zero, round to nearest, IEEE exceptions disabled. */ _FPU_SETCW (_FPU_FPCR_FZ); }