1/* memset/bzero -- set memory area to CH/0
2   Optimized version for x86-64.
3   Copyright (C) 2002-2021 Free Software Foundation, Inc.
4   This file is part of the GNU C Library.
5
6   The GNU C Library is free software; you can redistribute it and/or
7   modify it under the terms of the GNU Lesser General Public
8   License as published by the Free Software Foundation; either
9   version 2.1 of the License, or (at your option) any later version.
10
11   The GNU C Library is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14   Lesser General Public License for more details.
15
16   You should have received a copy of the GNU Lesser General Public
17   License along with the GNU C Library; if not, see
18   <https://www.gnu.org/licenses/>.  */
19
20#include <sysdep.h>
21#define USE_WITH_SSE2	1
22
23#define VEC_SIZE	16
24#define MOV_SIZE	3
25#define RET_SIZE	1
26
27#define VEC(i)		xmm##i
28#define VMOVU     movups
29#define VMOVA     movaps
30
31#define MEMSET_VDUP_TO_VEC0_AND_SET_RETURN(d, r) \
32  movd d, %xmm0; \
33  movq r, %rax; \
34  punpcklbw %xmm0, %xmm0; \
35  punpcklwd %xmm0, %xmm0; \
36  pshufd $0, %xmm0, %xmm0
37
38#define WMEMSET_VDUP_TO_VEC0_AND_SET_RETURN(d, r) \
39  movd d, %xmm0; \
40  movq r, %rax; \
41  pshufd $0, %xmm0, %xmm0
42
43#define SECTION(p)		p
44
45#ifndef MEMSET_SYMBOL
46# define MEMSET_CHK_SYMBOL(p,s)	p
47# define MEMSET_SYMBOL(p,s)	memset
48#endif
49
50#ifndef WMEMSET_SYMBOL
51# define WMEMSET_CHK_SYMBOL(p,s) p
52# define WMEMSET_SYMBOL(p,s)	__wmemset
53#endif
54
55#include "multiarch/memset-vec-unaligned-erms.S"
56
57libc_hidden_builtin_def (memset)
58
59#if IS_IN (libc)
60libc_hidden_def (__wmemset)
61weak_alias (__wmemset, wmemset)
62libc_hidden_weak (wmemset)
63#endif
64