sysdeps/s390/fpu/e_sqrt.c

   1 /* Copyright (C) 2004-2014 Free Software Foundation, Inc.
   2    Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>.
   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    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <math_private.h>
  20
  21 double
  22 __ieee754_sqrt (double x)
  23 {
  24   double res;
  25
  26   asm ( "sqdbr %0,%1" : "=f" (res) : "f" (x) );
  27   return res;
  28 }
  29 strong_alias (__ieee754_sqrt, __sqrt_finite)