sysdeps/alpha/fpu/s_fabsf.c

   1 /* Copyright (C) 2000 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Richard Henderson.
   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    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <math.h>
  20
  21 float
  22 __fabsf (float x)
  23 {
  24 #if __GNUC_PREREQ (2, 8)
  25   return __builtin_fabsf (x);
  26 #else
  27   __asm ("cpys $f31, %1, %0" : "=f" (x) : "f" (x));
  28   return x;
  29 #endif
  30 }
  31
  32 weak_alias (__fabsf, fabsf)