/* 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 . */ #include #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