|
Packit |
6c4009 |
/* Control when floating-point expressions are evaluated. x86 version.
|
|
Packit |
6c4009 |
Copyright (C) 2007-2018 Free Software Foundation, Inc.
|
|
Packit |
6c4009 |
This file is part of the GNU C Library.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is free software; you can redistribute it and/or
|
|
Packit |
6c4009 |
modify it under the terms of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License as published by the Free Software Foundation; either
|
|
Packit |
6c4009 |
version 2.1 of the License, or (at your option) any later version.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is distributed in the hope that it will be useful,
|
|
Packit |
6c4009 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit |
6c4009 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Packit |
6c4009 |
Lesser General Public License for more details.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
You should have received a copy of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License along with the GNU C Library; if not, see
|
|
Packit |
6c4009 |
<http://www.gnu.org/licenses/>. */
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#ifndef X86_MATH_BARRIERS_H
|
|
Packit |
6c4009 |
#define X86_MATH_BARRIERS_H 1
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#ifdef __SSE2_MATH__
|
|
Packit |
6c4009 |
# define math_opt_barrier(x) \
|
|
Packit |
6c4009 |
({ __typeof(x) __x; \
|
|
Packit |
6c4009 |
if (sizeof (x) <= sizeof (double) \
|
|
Packit |
6c4009 |
|| __builtin_types_compatible_p (__typeof (x), _Float128)) \
|
|
Packit |
6c4009 |
__asm ("" : "=x" (__x) : "0" (x)); \
|
|
Packit |
6c4009 |
else \
|
|
Packit |
6c4009 |
__asm ("" : "=t" (__x) : "0" (x)); \
|
|
Packit |
6c4009 |
__x; })
|
|
Packit |
6c4009 |
# define math_force_eval(x) \
|
|
Packit |
6c4009 |
do { \
|
|
Packit |
6c4009 |
if (sizeof (x) <= sizeof (double) \
|
|
Packit |
6c4009 |
|| __builtin_types_compatible_p (__typeof (x), _Float128)) \
|
|
Packit |
6c4009 |
__asm __volatile ("" : : "x" (x)); \
|
|
Packit |
6c4009 |
else \
|
|
Packit |
6c4009 |
__asm __volatile ("" : : "f" (x)); \
|
|
Packit |
6c4009 |
} while (0)
|
|
Packit |
6c4009 |
#else
|
|
Packit |
6c4009 |
# define math_opt_barrier(x) \
|
|
Packit |
6c4009 |
({ __typeof (x) __x; \
|
|
Packit |
6c4009 |
if (__builtin_types_compatible_p (__typeof (x), _Float128)) \
|
|
Packit |
6c4009 |
{ \
|
|
Packit |
6c4009 |
__x = (x); \
|
|
Packit |
6c4009 |
__asm ("" : "+m" (__x)); \
|
|
Packit |
6c4009 |
} \
|
|
Packit |
6c4009 |
else \
|
|
Packit |
6c4009 |
__asm ("" : "=t" (__x) : "0" (x)); \
|
|
Packit |
6c4009 |
__x; })
|
|
Packit |
6c4009 |
# define math_force_eval(x) \
|
|
Packit |
6c4009 |
do { \
|
|
Packit |
6c4009 |
__typeof (x) __x = (x); \
|
|
Packit |
6c4009 |
if (sizeof (x) <= sizeof (double) \
|
|
Packit |
6c4009 |
|| __builtin_types_compatible_p (__typeof (x), _Float128)) \
|
|
Packit |
6c4009 |
__asm __volatile ("" : : "m" (__x)); \
|
|
Packit |
6c4009 |
else \
|
|
Packit |
6c4009 |
__asm __volatile ("" : : "f" (__x)); \
|
|
Packit |
6c4009 |
} while (0)
|
|
Packit |
6c4009 |
#endif
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#endif
|