/* Copy memory block and return pointer to beginning of destination block   For Intel 80x86, x>=6.   This file is part of the GNU C Library.   Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.   Contributed by Ulrich Drepper <drepper@cygnus.com>, 2003.   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, write to the Free   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA   02111-1307 USA.  */#include <sysdep.h>#include "asm-syntax.h"#include "bp-sym.h"#include "bp-asm.h"#define PARMS	LINKAGE+4	/* one spilled register */#define RTN	PARMS#define DEST	RTN+RTN_SIZE#define SRC	DEST+PTR_SIZE#define LEN	SRC+PTR_SIZE	.text#if defined PIC && !defined NOT_IN_libcENTRY (__memmove_chk)	movl	12(%esp), %eax	cmpl	%eax, 16(%esp)	jb	HIDDEN_JUMPTARGET (__chk_fail)END (__memmove_chk)#endifENTRY (BP_SYM (memmove))	ENTER	pushl	%edi	cfi_adjust_cfa_offset (4)	movl	LEN(%esp), %ecx	movl	DEST(%esp), %edi	cfi_rel_offset (edi, 0)	movl	%esi, %edx	movl	SRC(%esp), %esi	cfi_register (esi, edx)	CHECK_BOUNDS_BOTH_WIDE (%edi, DEST(%esp), %ecx)	CHECK_BOUNDS_BOTH_WIDE (%esi, SRC(%esp), %ecx)	movl	%edi, %eax	subl	%esi, %eax	cmpl	%eax, %edi	jae	3f	cld	shrl	$1, %ecx	jnc	1f	movsb1:	shrl	$1, %ecx	jnc	2f	movsw2:	rep	movsl	movl	%edx, %esi	cfi_restore (esi)	movl	DEST(%esp), %eax	RETURN_BOUNDED_POINTER (DEST(%esp))	popl	%edi	cfi_adjust_cfa_offset (-4)	cfi_restore (edi)	LEAVE	RET_PTR	cfi_adjust_cfa_offset (4)	cfi_rel_offset (edi, 0)	cfi_register (esi, edx)	/* Backward copying.  */3:	std	leal	-1(%edi, %ecx), %edi	leal	-1(%esi, %ecx), %esi	shrl	$1, %ecx	jnc	1f	movsb1:	subl	$1, %edi	subl	$1, %esi	shrl	$1, %ecx	jnc	2f	movsw2:	subl	$2, %edi	subl	$2, %esi	rep	movsl	movl	%edx, %esi	cfi_restore (esi)	movl	DEST(%esp), %eax	RETURN_BOUNDED_POINTER (DEST(%esp))	cld	popl	%edi	cfi_adjust_cfa_offset (-4)	cfi_restore (edi)	LEAVE	RET_PTREND (BP_SYM (memmove))libc_hidden_builtin_def (memmove)