sysdeps/powerpc/fpu/math-barriers.h


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/* Control when floating-point expressions are evaluated.  PowerPC version.
   Copyright (C) 2017-2019 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
   <http://www.gnu.org/licenses/>.  */

#ifndef POWERPC_MATH_BARRIERS_H
#define POWERPC_MATH_BARRIERS_H 1

/* Avoid putting floating point values in memory.  */
# define math_opt_barrier(x)					\
  ({ __typeof (x) __x = (x); __asm ("" : "+dwa" (__x)); __x; })
# define math_force_eval(x)						\
  ({ __typeof (x) __x = (x); __asm __volatile__ ("" : : "dwa" (__x)); })

#endif