1 /* memset/bzero -- set memory area to CH/0
2 Optimized version for x86-64.
3 Copyright (C) 2002-2018 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
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.
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.
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 <http://www.gnu.org/licenses/>. */
24 /* Don't use movups and movaps since it will get larger nop paddings for
29 #define MEMSET_VDUP_TO_VEC0_AND_SET_RETURN(d, r) \
32 punpcklbw %xmm0, %xmm0; \
33 punpcklwd %xmm0, %xmm0; \
34 pshufd $0, %xmm0, %xmm0
36 #define WMEMSET_VDUP_TO_VEC0_AND_SET_RETURN(d, r) \
39 pshufd $0, %xmm0, %xmm0
44 # define MEMSET_CHK_SYMBOL(p,s) p
45 # define MEMSET_SYMBOL(p,s) memset
48 #ifndef WMEMSET_SYMBOL
49 # define WMEMSET_CHK_SYMBOL(p,s) p
50 # define WMEMSET_SYMBOL(p,s) __wmemset
53 #include "multiarch/memset-vec-unaligned-erms.S"
55 libc_hidden_builtin_def (memset)
58 libc_hidden_def (__wmemset)
59 weak_alias (__wmemset, wmemset)
60 libc_hidden_weak (wmemset)