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

   1 /* Multiple versions of isnan.
   2    Copyright (C) 2013-2018 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 #define __isnan __redirect___isnan
  20 #define __isnanf __redirect___isnanf
  21 #define __isnanl __redirect___isnanl
  22 #include <math.h>
  23 #include <math_ldbl_opt.h>
  24 #include <shlib-compat.h>
  25 #include "init-arch.h"
  26
  27 extern __typeof (__isnan) __isnan_ppc32 attribute_hidden;
  28 extern __typeof (__isnan) __isnan_power5 attribute_hidden;
  29 extern __typeof (__isnan) __isnan_power6 attribute_hidden;
  30 extern __typeof (__isnan) __isnan_power7 attribute_hidden;
  31 #undef __isnan
  32 #undef __isnanf
  33 #undef __isnanl
  34
  35 libc_ifunc_redirected (__redirect___isnan, __isnan,
  36                        (hwcap & PPC_FEATURE_ARCH_2_06)
  37                        ? __isnan_power7
  38                        : (hwcap & PPC_FEATURE_ARCH_2_05)
  39                          ? __isnan_power6
  40                          : (hwcap & PPC_FEATURE_POWER5)
  41                            ? __isnan_power5
  42                            : __isnan_ppc32);
  43
  44 weak_alias (__isnan, isnan)
  45
  46 #ifdef NO_LONG_DOUBLE
  47 strong_alias (__isnan, __isnanl)
  48 weak_alias (__isnan, isnanl)
  49 #endif
  50
  51 #if !IS_IN (libm)
  52 # if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
  53 compat_symbol (libc, __isnan, __isnanl, GLIBC_2_0);
  54 compat_symbol (libc, isnan, isnanl, GLIBC_2_0);
  55 # endif
  56 #endif