1  /* Common definition for ifunc selections optimized with SSE4.1.
       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 <init-arch.h>
      20  
      21  extern __typeof (REDIRECT_NAME) OPTIMIZE (c) attribute_hidden;
      22  extern __typeof (REDIRECT_NAME) OPTIMIZE (sse41) attribute_hidden;
      23  
      24  static inline void *
      25  IFUNC_SELECTOR (void)
      26  {
      27    const struct cpu_features* cpu_features = __get_cpu_features ();
      28  
      29    if (CPU_FEATURE_USABLE_P (cpu_features, SSE4_1))
      30      return OPTIMIZE (sse41);
      31  
      32    return OPTIMIZE (c);
      33  }