mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-13 14:50:17 +00:00
688903eb3e
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
62 lines
1.7 KiB
ArmAsm
62 lines
1.7 KiB
ArmAsm
/* memset/bzero -- set memory area to CH/0
|
|
Optimized version for x86-64.
|
|
Copyright (C) 2002-2018 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
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <sysdep.h>
|
|
|
|
#define VEC_SIZE 16
|
|
#define VEC(i) xmm##i
|
|
/* Don't use movups and movaps since it will get larger nop paddings for
|
|
alignment. */
|
|
#define VMOVU movdqu
|
|
#define VMOVA movdqa
|
|
|
|
#define MEMSET_VDUP_TO_VEC0_AND_SET_RETURN(d, r) \
|
|
movd d, %xmm0; \
|
|
movq r, %rax; \
|
|
punpcklbw %xmm0, %xmm0; \
|
|
punpcklwd %xmm0, %xmm0; \
|
|
pshufd $0, %xmm0, %xmm0
|
|
|
|
#define WMEMSET_VDUP_TO_VEC0_AND_SET_RETURN(d, r) \
|
|
movd d, %xmm0; \
|
|
movq r, %rax; \
|
|
pshufd $0, %xmm0, %xmm0
|
|
|
|
#define SECTION(p) p
|
|
|
|
#ifndef MEMSET_SYMBOL
|
|
# define MEMSET_CHK_SYMBOL(p,s) p
|
|
# define MEMSET_SYMBOL(p,s) memset
|
|
#endif
|
|
|
|
#ifndef WMEMSET_SYMBOL
|
|
# define WMEMSET_CHK_SYMBOL(p,s) p
|
|
# define WMEMSET_SYMBOL(p,s) __wmemset
|
|
#endif
|
|
|
|
#include "multiarch/memset-vec-unaligned-erms.S"
|
|
|
|
libc_hidden_builtin_def (memset)
|
|
|
|
#if IS_IN (libc)
|
|
libc_hidden_def (__wmemset)
|
|
weak_alias (__wmemset, wmemset)
|
|
libc_hidden_weak (wmemset)
|
|
#endif
|