1  /* Multiple versions of log2f.
       2     Copyright (C) 2017-2023 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     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <libm-alias-float.h>
      20  #include <libm-alias-finite.h>
      21  
      22  extern float __redirect_log2f (float);
      23  
      24  #define SYMBOL_NAME log2f
      25  #include "ifunc-fma.h"
      26  
      27  libc_ifunc_redirected (__redirect_log2f, __log2f, IFUNC_SELECTOR ());
      28  
      29  #ifdef SHARED
      30  __hidden_ver1 (__log2f, __GI___log2f, __redirect_log2f)
      31    __attribute__ ((visibility ("hidden")));
      32  
      33  versioned_symbol (libm, __ieee754_log2f, log2f, GLIBC_2_27);
      34  libm_alias_float_other (__log2, log2)
      35  #else
      36  libm_alias_float (__log2, log2)
      37  #endif
      38  
      39  strong_alias (__log2f, __ieee754_log2f)
      40  libm_alias_finite (__log2f, __log2f)
      41  
      42  #define __log2f __log2f_sse2
      43  #include <sysdeps/ieee754/flt-32/e_log2f.c>