sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_isnanf.c

   1 /* Multiple versions of isnanf.
   2    Copyright (C) 2013-2015 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
  23 /* Both ppc32 and power7 isnan(double) work for float.  */
  24 extern __typeof (__isnanf) __isnan_ppc32 attribute_hidden;
  25 extern __typeof (__isnanf) __isnanf_power5 attribute_hidden;
  26 extern __typeof (__isnanf) __isnanf_power6 attribute_hidden;
  27 extern __typeof (__isnanf) __isnan_power7 attribute_hidden;
  28
  29 libc_ifunc (__isnanf,
  30             (hwcap & PPC_FEATURE_ARCH_2_06)
  31             ? __isnan_power7 :
  32               (hwcap & PPC_FEATURE_ARCH_2_05)
  33               ? __isnanf_power6 :
  34                 (hwcap & PPC_FEATURE_POWER5)
  35                 ? __isnanf_power5
  36             : __isnan_ppc32);
  37
  38 weak_alias (__isnanf, isnanf)