glibc/sysdeps/x86/fpu/math_private.h

33 lines
1.1 KiB
C

/* Private inline math functions for x86.
Copyright (C) 1995-2020 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
<https://www.gnu.org/licenses/>. */
#ifndef X86_MATH_PRIVATE_H
#define X86_MATH_PRIVATE_H 1
#include_next <math_private.h>
__extern_always_inline long double
__NTH (__ieee754_atan2l (long double y, long double x))
{
long double ret;
__asm__ __volatile__ ("fpatan" : "=t" (ret) : "0" (x), "u" (y) : "st(1)");
return ret;
}
#endif