diff options
Diffstat (limited to 'sysdeps/x86_64/strncmp.S')
| -rw-r--r-- | sysdeps/x86_64/strncmp.S | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/sysdeps/x86_64/strncmp.S b/sysdeps/x86_64/strncmp.S index 13d9e82ee2..afb251d9fe 100644 --- a/sysdeps/x86_64/strncmp.S +++ b/sysdeps/x86_64/strncmp.S @@ -1,4 +1,31 @@ +/* strncmp dispatch for RTLD and non-multiarch build + Copyright (C) 1999-2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + /* Symbol = strncmp. */ -#include "multiarch/strncmp-sse2.S" +#define DEFAULT_IMPL_V1 "multiarch/strncmp-sse2.S" +/* This may cause regressions on some processors that heavily prefer + aligned loads or have slow a implementation of the `pcmpstri` + instruction. */ +#define DEFAULT_IMPL_V2 "multiarch/strncmp-sse4_2.S" +#define DEFAULT_IMPL_V3 "multiarch/strncmp-avx2.S" +#define DEFAULT_IMPL_V4 "multiarch/strncmp-evex.S" + +#include "isa-default-impl.h" + libc_hidden_builtin_def (strncmp) |