/* Control when floating-point expressions are evaluated. M68k version. Copyright (C) 2011-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ #ifndef M68K_MATH_BARRIERS_H #define M68K_MATH_BARRIERS_H 1 #define math_opt_barrier(x) \ ({ __typeof (x) __x; \ __asm ("" : "=f" (__x) : "0" (x)); \ __x; }) #define math_force_eval(x) \ do \ { \ __typeof (x) __x = (x); \ if (sizeof (x) <= sizeof (double)) \ __asm __volatile ("" : : "m" (__x)); \ else \ __asm __volatile ("" : : "f" (__x)); \ } \ while (0) #endif