/* * Copyright (C) 2014-2015 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 * . */ #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); }