Blame sysdeps/x86_64/memmove.S

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/* Optimized memmove for x86-64.
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   Copyright (C) 2016-2018 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, see
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   <http://www.gnu.org/licenses/>.  */
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#include <sysdep.h>
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#define VEC_SIZE	16
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#define VEC(i)		xmm##i
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#define PREFETCHNT	prefetchnta
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#define VMOVNT		movntdq
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/* Use movups and movaps for smaller code sizes.  */
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#define VMOVU		movups
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#define VMOVA		movaps
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#define SECTION(p)		p
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#ifdef USE_MULTIARCH
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# if !IS_IN (libc)
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#  define MEMCPY_SYMBOL(p,s)		memcpy
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# endif
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#else
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# if defined SHARED && IS_IN (libc)
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#  define MEMCPY_SYMBOL(p,s)		__memcpy
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# else
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#  define MEMCPY_SYMBOL(p,s)		memcpy
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# endif
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#endif
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#if !defined USE_MULTIARCH || !IS_IN (libc)
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# define MEMPCPY_SYMBOL(p,s)		__mempcpy
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#endif
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#ifndef MEMMOVE_SYMBOL
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# define MEMMOVE_CHK_SYMBOL(p,s)	p
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# define MEMMOVE_SYMBOL(p,s)		memmove
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#endif
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#include "multiarch/memmove-vec-unaligned-erms.S"
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#ifndef USE_MULTIARCH
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libc_hidden_builtin_def (memmove)
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# if defined SHARED && IS_IN (libc)
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strong_alias (memmove, __memcpy)
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libc_hidden_ver (memmove, memcpy)
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# endif
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libc_hidden_def (__mempcpy)
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weak_alias (__mempcpy, mempcpy)
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libc_hidden_builtin_def (mempcpy)
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# if defined SHARED && IS_IN (libc)
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#  undef memcpy
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#  include <shlib-compat.h>
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versioned_symbol (libc, __memcpy, memcpy, GLIBC_2_14);
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#  if SHLIB_COMPAT (libc, GLIBC_2_2_5, GLIBC_2_14)
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compat_symbol (libc, memmove, memcpy, GLIBC_2_2_5);
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#  endif
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# endif
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#endif