glibc/sysdeps/x86_64/memcmpeq.S
Noah Goldstein 8804157ad9 x86: Optimize memcmp SSE2 in memcmp.S
New code save size (-303 bytes) and has significantly better
performance.

geometric_mean(N=20) of page cross cases New / Original: 0.634
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
2022-04-15 13:08:35 -05:00

22 lines
912 B
ArmAsm

/* __memcmpeq optimized with SSE2.
Copyright (C) 2017-2022 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/>. */
#define MEMCMP __memcmpeq
#define USE_AS_MEMCMPEQ 1
#include "multiarch/memcmp-sse2.S"