sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c

   1 /* Multiple versions of copysignf.
   2    Copyright (C) 2013-2017 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    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <math.h>
  20 #include <shlib-compat.h>
  21 #include "init-arch.h"
  22 #include <libm-alias-float.h>
  23
  24 /* It's safe to use double-precision implementation for single-precision. */
  25 extern __typeof (__copysignf) __copysign_ppc64 attribute_hidden;
  26 extern __typeof (__copysignf) __copysign_power6 attribute_hidden;
  27
  28 libc_ifunc (__copysignf,
  29             (hwcap & PPC_FEATURE_ARCH_2_05)
  30             ? __copysign_power6
  31             : __copysign_ppc64);
  32
  33 libm_alias_float (__copysign, copysign)