1/* Private inline math functions for x86.
2 Copyright (C) 1995-2024 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 X86_MATH_PRIVATE_H
20#define X86_MATH_PRIVATE_H 1
21
22#include_next <math_private.h>
23
24__extern_always_inline long double
25__NTH (__ieee754_atan2l (long double y, long double x))
26{
27 long double ret;
28 __asm__ __volatile__ ("fpatan" : "=t" (ret) : "0" (x), "u" (y) : "st(1)");
29 return ret;
30}
31
32#endif
33

source code of glibc/sysdeps/x86/fpu/math_private.h