sysdeps/i386/i686/fpu/multiarch/e_log2f.c

   1 /* Multiple versions of log2f.
   2    Copyright (C) 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 extern float __redirect_log2f (float);
  20
  21 #define SYMBOL_NAME log2f
  22 #include "ifunc-sse2.h"
  23
  24 libc_ifunc_redirected (__redirect_log2f, __log2f, IFUNC_SELECTOR ());
  25
  26 #ifdef SHARED
  27 __hidden_ver1 (__log2f_ia32, __GI___log2f, __redirect_log2f)
  28   __attribute__ ((visibility ("hidden")));
  29
  30 # include <shlib-compat.h>
  31 versioned_symbol (libm, __log2f, log2f, GLIBC_2_27);
  32 #else
  33 weak_alias (__log2f, log2f)
  34 #endif
  35
  36 strong_alias (__log2f, __ieee754_log2f)
  37 strong_alias (__log2f, __log2f_finite)
  38
  39 #define __log2f __log2f_ia32
  40 #include <sysdeps/ieee754/flt-32/e_log2f.c>