Current File : //glibc-2.29/sysdeps/m68k/m680x0/fpu/math-barriers.h
/* Control when floating-point expressions are evaluated. M68k version.
Copyright (C) 2011-2019 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 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
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