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/* fmaximum_num(). LoongArch version.
Copyright (C) 2022-2024 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>
#include <fpu_control.h>
double
__fmaximum_num (double x, double y)
{
int x_cond;
int y_cond;
asm volatile ("fclass.d \t%0, %1" : "=f" (x_cond) : "f" (x));
asm volatile ("fclass.d \t%0, %1" : "=f" (y_cond) : "f" (y));
if (__glibc_unlikely((x_cond & _FCLASS_NAN) && !(y_cond & _FCLASS_NAN)))
{
asm volatile ("fmax.d \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y));
return y;
}
else if (__glibc_unlikely(!(x_cond & _FCLASS_NAN) && (y_cond & _FCLASS_NAN)))
{
asm volatile ("fmax.d \t%0, %1, %2" : "=f" (y) : "f" (x), "f" (y));
return x;
}
else
{
asm volatile ("fmax.d \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y));
return x;
}
}
libm_alias_double (__fmaximum_num, fmaximum_num)
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