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1/* Control when floating-point expressions are evaluated. AArch64 version.
2 Copyright (C) 2014-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#ifndef AARCH64_MATH_BARRIERS_H
20#define AARCH64_MATH_BARRIERS_H 1
21
22#define math_opt_barrier(x) \
23 ({ __typeof (x) __x = (x); __asm ("" : "+w" (__x)); __x; })
24#define math_force_eval(x) \
25 ({ __typeof (x) __x = (x); __asm __volatile__ ("" : : "w" (__x)); })
26
27#endif
28

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source code of glibc/sysdeps/aarch64/fpu/math-barriers.h