sysdeps/loongarch/fpu/s_fminimum_magf.c

   1 /* fminimum_magf().  LoongArch version.
   2    Copyright (C) 2022-2023 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 #define NO_MATH_REDIRECT
  20 #include <math.h>
  21 #include <libm-alias-float.h>
  22 #include <fpu_control.h>
  23
  24 float
  25 __fminimum_magf (float x, float y)
  26 {
  27   int x_cond;
  28   int y_cond;
  29   asm volatile ("fclass.s \t%0, %1" : "=f" (x_cond) : "f" (x));
  30   asm volatile ("fclass.s \t%0, %1" : "=f" (y_cond) : "f" (y));
  31
  32   if (__glibc_unlikely((x_cond | y_cond) & _FCLASS_NAN))
  33       return x * y;
  34   else
  35     {
  36       asm volatile ("fmina.s \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y));
  37       return x;
  38     }
  39 }
  40 libm_alias_float (__fminimum_mag, fminimum_mag)