glibc/sysdeps/loongarch/fpu/s_fmaxmag.c
Xiaolin Tang 73e35174f5 LoongArch: Hard Float Support for fmaxmag{f/ }, fminmag{f/ }.
Use hardware Floating-point instruction f{maxa/mina}.{s/d},
to implement fmaxmag{f/ }, fminmag{f/ }.

       *  sysdeps/loongarch/fpu/s_fmaxmag.c: New file.
       *  sysdeps/loongarch/fpu/s_fmaxmagf.c: Likewise.
       *  sysdeps/loongarch/fpu/s_fminmag.c: Likewise.
       *  sysdeps/loongarch/fpu/s_fminmagf.c: Likewise.
2022-11-14 10:02:42 +08:00

30 lines
1.0 KiB
C

/* fmaxmag(). LoongArch version.
Copyright (C) 2022 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/>. */
#define NO_MATH_REDIRECT
#include <math.h>
#include <libm-alias-double.h>
double
__fmaxmag (double x, double y)
{
asm volatile ("fmaxa.d \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y));
return x;
}
libm_alias_double (__fmaxmag, fmaxmag)