/* Control when floating-point expressions are evaluated. Alpha version. Copyright (C) 2014-2018 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 ALPHA_MATH_BARRIERS_H #define ALPHA_MATH_BARRIERS_H 1 /* Generic code forces values to memory; we don't need to do that. */ #define math_opt_barrier(x) \ ({ __typeof (x) __x = (x); __asm ("" : "+frm" (__x)); __x; }) #define math_force_eval(x) \ ({ __typeof (x) __x = (x); __asm __volatile__ ("" : : "frm" (__x)); }) #endif