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

   1 /* Multiple versions of isnan.
   2    Copyright (C) 2013-2014 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 <math_ldbl_opt.h>
  21 #include <shlib-compat.h>
  22 #include "init-arch.h"
  23
  24 extern __typeof (__isnan) __isnan_ppc64 attribute_hidden;
  25 extern __typeof (__isnan) __isnan_power5 attribute_hidden;
  26 extern __typeof (__isnan) __isnan_power6 attribute_hidden;
  27 extern __typeof (__isnan) __isnan_power6x attribute_hidden;
  28 extern __typeof (__isnan) __isnan_power7 attribute_hidden;
  29
  30 libc_ifunc (__isnan,
  31             (hwcap & PPC_FEATURE_ARCH_2_06)
  32             ? __isnan_power7 :
  33               (hwcap & PPC_FEATURE_POWER6_EXT)
  34                 ? __isnan_power6x :
  35                 (hwcap & PPC_FEATURE_ARCH_2_05)
  36                   ? __isnan_power6 :
  37                   (hwcap & PPC_FEATURE_POWER5)
  38                     ? __isnan_power5
  39             : __isnan_ppc64);
  40
  41 weak_alias (__isnan, isnan)
  42
  43 #ifdef NO_LONG_DOUBLE
  44 strong_alias (__isnan, __isnanl)
  45 weak_alias (__isnan, isnanl)
  46 #endif
  47
  48 #ifndef IS_IN_libm
  49 # if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
  50 compat_symbol (libc, __isnan, __isnanl, GLIBC_2_0);
  51 compat_symbol (libc, isnan, isnanl, GLIBC_2_0);
  52 # endif
  53 #endif