sysdeps/x86_64/strcmp.S

   1 /* strcmp dispatch for RTLD and non-multiarch build
   2    Copyright (C) 1999-2024 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 /* Symbol = strcmp.  */
  20
  21 #define DEFAULT_IMPL_V1 "multiarch/strcmp-sse2.S"
  22 /* strcmp-sse2-unaligned.S is often faster than strcmp-sse42.S and
  23    doesn't have the drawback of using the `pcmpstri` instruction
  24    which can be very slow on some CPUs.  */
  25 #define DEFAULT_IMPL_V2 "multiarch/strcmp-sse2-unaligned.S"
  26 #define DEFAULT_IMPL_V3 "multiarch/strcmp-avx2.S"
  27 #define DEFAULT_IMPL_V4 "multiarch/strcmp-evex.S"
  28
  29 #include "isa-default-impl.h"
  30
  31 libc_hidden_builtin_def (strcmp)