path: root/sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S

/* memcpy with SSSE3 and REP string.
   Copyright (C) 2010-2018 Free Software Foundation, Inc.
   Contributed by Intel Corporation.
   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
   <http://www.gnu.org/licenses/>.  */

#include <sysdep.h>

#if IS_IN (libc) \
    && (defined SHARED \
	|| defined USE_AS_MEMMOVE \
	|| !defined USE_MULTIARCH)

#include "asm-syntax.h"

#ifndef MEMCPY
# define MEMCPY		__memcpy_ssse3_rep
# define MEMCPY_CHK	__memcpy_chk_ssse3_rep
#endif

#ifdef USE_AS_BCOPY
# define SRC		PARMS
# define DEST		SRC+4
# define LEN		DEST+4
#else
# define DEST		PARMS
# define SRC		DEST+4
# define LEN		SRC+4
#endif

#define CFI_PUSH(REG)						\
  cfi_adjust_cfa_offset (4);					\
  cfi_rel_offset (REG, 0)

#define CFI_POP(REG)						\
  cfi_adjust_cfa_offset (-4);					\
  cfi_restore (REG)

#define PUSH(REG)	pushl REG; CFI_PUSH (REG)
#define POP(REG)	popl REG; CFI_POP (REG)

#ifdef PIC
# define PARMS		8		/* Preserve EBX.  */
# define ENTRANCE	PUSH (%ebx);
# define RETURN_END	POP (%ebx); ret
# define RETURN		RETURN_END; CFI_PUSH (%ebx)
# define JMPTBL(I, B)	I - B

/* Load an entry in a jump table into EBX and branch to it.  TABLE is a
   jump table with relative offsets.  INDEX is a register contains the
   index into the jump table.   SCALE is the scale of INDEX. */
# define BRANCH_TO_JMPTBL_ENTRY(TABLE, INDEX, SCALE)		\
    /* We first load PC into EBX.  */				\
    SETUP_PIC_REG(bx);						\
    /* Get the address of the jump table.  */			\
    addl	$(TABLE - .), %ebx;				\
    /* Get the entry and convert the relative offset to the	\
       absolute address.  */					\
    addl	(%ebx,INDEX,SCALE), %ebx;			\
    /* We loaded the jump table.  Go.  */			\
    _CET_NOTRACK jmp *%ebx

# define BRANCH_TO_JMPTBL_ENTRY_VALUE(TABLE)			\
    addl	$(TABLE - .), %ebx

# define BRANCH_TO_JMPTBL_ENTRY_TAIL(TABLE, INDEX, SCALE)	\
    addl	(%ebx,INDEX,SCALE), %ebx;			\
    /* We loaded the jump table.  Go.  */			\
    _CET_NOTRACK jmp *%ebx
#else
# define PARMS		4
# define ENTRANCE
# define RETURN_END	ret
# define RETURN		RETURN_END
# define JMPTBL(I, B)	I

/* Branch to an entry in a jump table.  TABLE is a jump table with
   absolute offsets.  INDEX is a register contains the index into the
   jump table.  SCALE is the scale of INDEX. */
# define BRANCH_TO_JMPTBL_ENTRY(TABLE, INDEX, SCALE)		\
    _CET_NOTRACK jmp *TABLE(,INDEX,SCALE)

# define BRANCH_TO_JMPTBL_ENTRY_VALUE(TABLE)

# define BRANCH_TO_JMPTBL_ENTRY_TAIL(TABLE, INDEX, SCALE)		\
    _CET_NOTRACK jmp *TABLE(,INDEX,SCALE)
#endif

	.section .text.ssse3,"ax",@progbits
#if !defined USE_AS_BCOPY && defined SHARED
ENTRY (MEMCPY_CHK)
	movl	12(%esp), %eax
	cmpl	%eax, 16(%esp)
	jb	HIDDEN_JUMPTARGET (__chk_fail)
END (MEMCPY_CHK)
#endif
ENTRY (MEMCPY)
	ENTRANCE
	movl	LEN(%esp), %ecx
	movl	SRC(%esp), %eax
	movl	DEST(%esp), %edx

#ifdef USE_AS_MEMMOVE
	cmp	%eax, %edx
	jb	L(copy_forward)
	je	L(fwd_write_0bytes)
	cmp	$48, %ecx
	jb	L(bk_write_less48bytes)
	add	%ecx, %eax
	cmp	%eax, %edx
	movl	SRC(%esp), %eax
	jb	L(copy_backward)

L(copy_forward):
#endif
	cmp	$48, %ecx
	jae	L(48bytesormore)

L(fwd_write_less32bytes):
#ifndef USE_AS_MEMMOVE
	cmp	%dl, %al
	jb	L(bk_write)
#endif
	add	%ecx, %edx
	add	%ecx, %eax
	BRANCH_TO_JMPTBL_ENTRY (L(table_48bytes_fwd), %ecx, 4)
#ifndef USE_AS_MEMMOVE
L(bk_write):
	BRANCH_TO_JMPTBL_ENTRY (L(table_48_bytes_bwd), %ecx, 4)
#endif

	ALIGN (4)
/* ECX > 32 and EDX is 4 byte aligned.  */
L(48bytesormore):
	movdqu	(%eax), %xmm0
	PUSH (%edi)
	movl	%edx, %edi
	and	$-16, %edx
	PUSH (%esi)
	cfi_remember_state
	add	$16, %edx
	movl	%edi, %esi
	sub	%edx, %edi
	add	%edi, %ecx
	sub	%edi, %eax

#ifdef SHARED_CACHE_SIZE_HALF
	cmp	$SHARED_CACHE_SIZE_HALF, %ecx
#else
# ifdef PIC
	SETUP_PIC_REG(bx)
	add	$_GLOBAL_OFFSET_TABLE_, %ebx
	cmp	__x86_shared_cache_size_half@GOTOFF(%ebx), %ecx
# else
	cmp	__x86_shared_cache_size_half, %ecx
# endif
#endif

	mov	%eax, %edi
	jae	L(large_page)
	and	$0xf, %edi
	jz	L(shl_0)

	BRANCH_TO_JMPTBL_ENTRY (L(shl_table), %edi, 4)

	ALIGN (4)
L(shl_0):
	movdqu	%xmm0, (%esi)
	xor	%edi, %edi
	cmp	$127, %ecx
	ja	L(shl_0_gobble)
	lea	-32(%ecx), %ecx
L(shl_0_loop):
	movdqa	(%eax, %edi), %xmm0
	movdqa	16(%eax, %edi), %xmm1
	sub	$32, %ecx
	movdqa	%xmm0, (%edx, %edi)
	movdqa	%xmm1, 16(%edx, %edi)
	lea	32(%edi), %edi
	jb	L(shl_0_end)

	movdqa	(%eax, %edi), %xmm0
	movdqa	16(%eax, %edi), %xmm1
	sub	$32, %ecx
	movdqa	%xmm0, (%edx, %edi)
	movdqa	%xmm1, 16(%edx, %edi)
	lea	32(%edi), %edi
	jb	L(shl_0_end)

	movdqa	(%eax, %edi), %xmm0
	movdqa	16(%eax, %edi), %xmm1
	sub	$32, %ecx
	movdqa	%xmm0, (%edx, %edi)
	movdqa	%xmm1, 16(%edx, %edi)
	lea	32(%edi), %edi
	jb	L(shl_0_end)

	movdqa	(%eax, %edi), %xmm0
	movdqa	16(%eax, %edi), %xmm1
	sub	$32, %ecx
	movdqa	%xmm0, (%edx, %edi)
	movdqa	%xmm1, 16(%edx, %edi)
	lea	32(%edi), %edi
L(shl_0_end):
	lea	32(%ecx), %ecx
	add	%ecx, %edi
	add	%edi, %edx
	add	%edi, %eax
	POP (%esi)
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY (L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
L(shl_0_gobble):

#ifdef DATA_CACHE_SIZE_HALF
	cmp	$DATA_CACHE_SIZE_HALF, %ecx
#else
# ifdef PIC
	SETUP_PIC_REG(bx)
	add	$_GLOBAL_OFFSET_TABLE_, %ebx
	mov	__x86_data_cache_size_half@GOTOFF(%ebx), %edi
# else
	mov	__x86_data_cache_size_half, %edi
# endif
#endif
	mov	%edi, %esi
	shr	$3, %esi
	sub	%esi, %edi
	cmp	%edi, %ecx
	jae	L(shl_0_gobble_mem_start)
	sub	$128, %ecx
	ALIGN (4)
L(shl_0_gobble_cache_loop):
	movdqa	(%eax), %xmm0
	movaps	0x10(%eax), %xmm1
	movaps	0x20(%eax), %xmm2
	movaps	0x30(%eax), %xmm3
	movaps	0x40(%eax), %xmm4
	movaps	0x50(%eax), %xmm5
	movaps	0x60(%eax), %xmm6
	movaps	0x70(%eax), %xmm7
	lea	0x80(%eax), %eax
	sub	$128, %ecx
	movdqa	%xmm0, (%edx)
	movaps	%xmm1, 0x10(%edx)
	movaps	%xmm2, 0x20(%edx)
	movaps	%xmm3, 0x30(%edx)
	movaps	%xmm4, 0x40(%edx)
	movaps	%xmm5, 0x50(%edx)
	movaps	%xmm6, 0x60(%edx)
	movaps	%xmm7, 0x70(%edx)
	lea	0x80(%edx), %edx

	jae	L(shl_0_gobble_cache_loop)
	add	$0x80, %ecx
	cmp	$0x40, %ecx
	jb	L(shl_0_cache_less_64bytes)

	movdqa	(%eax), %xmm0
	sub	$0x40, %ecx
	movdqa	0x10(%eax), %xmm1

	movdqa	%xmm0, (%edx)
	movdqa	%xmm1, 0x10(%edx)

	movdqa	0x20(%eax), %xmm0
	movdqa	0x30(%eax), %xmm1
	add	$0x40, %eax

	movdqa	%xmm0, 0x20(%edx)
	movdqa	%xmm1, 0x30(%edx)
	add	$0x40, %edx
L(shl_0_cache_less_64bytes):
	cmp	$0x20, %ecx
	jb	L(shl_0_cache_less_32bytes)
	movdqa	(%eax), %xmm0
	sub	$0x20, %ecx
	movdqa	0x10(%eax), %xmm1
	add	$0x20, %eax
	movdqa	%xmm0, (%edx)
	movdqa	%xmm1, 0x10(%edx)
	add	$0x20, %edx
L(shl_0_cache_less_32bytes):
	cmp	$0x10, %ecx
	jb	L(shl_0_cache_less_16bytes)
	sub	$0x10, %ecx
	movdqa	(%eax), %xmm0
	add	$0x10, %eax
	movdqa	%xmm0, (%edx)
	add	$0x10, %edx
L(shl_0_cache_less_16bytes):
	add	%ecx, %edx
	add	%ecx, %eax
	POP (%esi)
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY (L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(shl_0_gobble_mem_start):
	cmp	%al, %dl
	je	L(copy_page_by_rep)
	sub	$128, %ecx
L(shl_0_gobble_mem_loop):
	prefetchnta 0x1c0(%eax)
	prefetchnta 0x280(%eax)
	prefetchnta 0x1c0(%edx)
	prefetchnta 0x280(%edx)

	movdqa	(%eax), %xmm0
	movaps	0x10(%eax), %xmm1
	movaps	0x20(%eax), %xmm2
	movaps	0x30(%eax), %xmm3
	movaps	0x40(%eax), %xmm4
	movaps	0x50(%eax), %xmm5
	movaps	0x60(%eax), %xmm6
	movaps	0x70(%eax), %xmm7
	lea	0x80(%eax), %eax
	sub	$0x80, %ecx
	movdqa	%xmm0, (%edx)
	movaps	%xmm1, 0x10(%edx)
	movaps	%xmm2, 0x20(%edx)
	movaps	%xmm3, 0x30(%edx)
	movaps	%xmm4, 0x40(%edx)
	movaps	%xmm5, 0x50(%edx)
	movaps	%xmm6, 0x60(%edx)
	movaps	%xmm7, 0x70(%edx)
	lea	0x80(%edx), %edx

	jae	L(shl_0_gobble_mem_loop)
	add	$0x80, %ecx
	cmp	$0x40, %ecx
	jb	L(shl_0_mem_less_64bytes)

	movdqa	(%eax), %xmm0
	sub	$0x40, %ecx
	movdqa	0x10(%eax), %xmm1

	movdqa	%xmm0, (%edx)
	movdqa	%xmm1, 0x10(%edx)

	movdqa	0x20(%eax), %xmm0
	movdqa	0x30(%eax), %xmm1
	add	$0x40, %eax

	movdqa	%xmm0, 0x20(%edx)
	movdqa	%xmm1, 0x30(%edx)
	add	$0x40, %edx
L(shl_0_mem_less_64bytes):
	cmp	$0x20, %ecx
	jb	L(shl_0_mem_less_32bytes)
	movdqa	(%eax), %xmm0
	sub	$0x20, %ecx
	movdqa	0x10(%eax), %xmm1
	add	$0x20, %eax
	movdqa	%xmm0, (%edx)
	movdqa	%xmm1, 0x10(%edx)
	add	$0x20, %edx
L(shl_0_mem_less_32bytes):
	cmp	$0x10, %ecx
	jb	L(shl_0_mem_less_16bytes)
	sub	$0x10, %ecx
	movdqa	(%eax), %xmm0
	add	$0x10, %eax
	movdqa	%xmm0, (%edx)
	add	$0x10, %edx
L(shl_0_mem_less_16bytes):
	add	%ecx, %edx
	add	%ecx, %eax
	POP (%esi)
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY (L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(shl_1):
	BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd))
	sub	$1, %eax
	movaps	(%eax), %xmm1
	xor	%edi, %edi
	sub	$32, %ecx
	movdqu	%xmm0, (%esi)
	POP (%esi)
L(shl_1_loop):

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm4
	palignr	$1, %xmm2, %xmm3
	palignr	$1, %xmm1, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jb	L(shl_1_end)

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm1
	palignr	$1, %xmm2, %xmm3
	palignr	$1, %xmm4, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jae	L(shl_1_loop)

L(shl_1_end):
	add	$32, %ecx
	add	%ecx, %edi
	add	%edi, %edx
	lea	1(%edi, %eax), %eax
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(shl_2):
	BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd))
	sub	$2, %eax
	movaps	(%eax), %xmm1
	xor	%edi, %edi
	sub	$32, %ecx
	movdqu	%xmm0, (%esi)
	POP (%esi)
L(shl_2_loop):

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm4
	palignr	$2, %xmm2, %xmm3
	palignr	$2, %xmm1, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jb	L(shl_2_end)

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm1
	palignr	$2, %xmm2, %xmm3
	palignr	$2, %xmm4, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jae	L(shl_2_loop)

L(shl_2_end):
	add	$32, %ecx
	add	%ecx, %edi
	add	%edi, %edx
	lea	2(%edi, %eax), %eax
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(shl_3):
	BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd))
	sub	$3, %eax
	movaps	(%eax), %xmm1
	xor	%edi, %edi
	sub	$32, %ecx
	movdqu	%xmm0, (%esi)
	POP (%esi)
L(shl_3_loop):

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm4
	palignr	$3, %xmm2, %xmm3
	palignr	$3, %xmm1, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jb	L(shl_3_end)

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm1
	palignr	$3, %xmm2, %xmm3
	palignr	$3, %xmm4, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jae	L(shl_3_loop)

L(shl_3_end):
	add	$32, %ecx
	add	%ecx, %edi
	add	%edi, %edx
	lea	3(%edi, %eax), %eax
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(shl_4):
	BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd))
	sub	$4, %eax
	movaps	(%eax), %xmm1
	xor	%edi, %edi
	sub	$32, %ecx
	movdqu	%xmm0, (%esi)
	POP (%esi)
L(shl_4_loop):

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm4
	palignr	$4, %xmm2, %xmm3
	palignr	$4, %xmm1, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jb	L(shl_4_end)

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm1
	palignr	$4, %xmm2, %xmm3
	palignr	$4, %xmm4, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jae	L(shl_4_loop)

L(shl_4_end):
	add	$32, %ecx
	add	%ecx, %edi
	add	%edi, %edx
	lea	4(%edi, %eax), %eax
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(shl_5):
	BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd))
	sub	$5, %eax
	movaps	(%eax), %xmm1
	xor	%edi, %edi
	sub	$32, %ecx
	movdqu	%xmm0, (%esi)
	POP (%esi)
L(shl_5_loop):

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm4
	palignr	$5, %xmm2, %xmm3
	palignr	$5, %xmm1, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jb	L(shl_5_end)

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm1
	palignr	$5, %xmm2, %xmm3
	palignr	$5, %xmm4, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jae	L(shl_5_loop)

L(shl_5_end):
	add	$32, %ecx
	add	%ecx, %edi
	add	%edi, %edx
	lea	5(%edi, %eax), %eax
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(shl_6):
	BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd))
	sub	$6, %eax
	movaps	(%eax), %xmm1
	xor	%edi, %edi
	sub	$32, %ecx
	movdqu	%xmm0, (%esi)
	POP (%esi)
L(shl_6_loop):

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm4
	palignr	$6, %xmm2, %xmm3
	palignr	$6, %xmm1, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jb	L(shl_6_end)

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm1
	palignr	$6, %xmm2, %xmm3
	palignr	$6, %xmm4, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jae	L(shl_6_loop)

L(shl_6_end):
	add	$32, %ecx
	add	%ecx, %edi
	add	%edi, %edx
	lea	6(%edi, %eax), %eax
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(shl_7):
	BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd))
	sub	$7, %eax
	movaps	(%eax), %xmm1
	xor	%edi, %edi
	sub	$32, %ecx
	movdqu	%xmm0, (%esi)
	POP (%esi)
L(shl_7_loop):

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm4
	palignr	$7, %xmm2, %xmm3
	palignr	$7, %xmm1, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jb	L(shl_7_end)

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm1
	palignr	$7, %xmm2, %xmm3
	palignr	$7, %xmm4, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jae	L(shl_7_loop)

L(shl_7_end):
	add	$32, %ecx
	add	%ecx, %edi
	add	%edi, %edx
	lea	7(%edi, %eax), %eax
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(shl_8):
	BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd))
	sub	$8, %eax
	movaps	(%eax), %xmm1
	xor	%edi, %edi
	sub	$32, %ecx
	movdqu	%xmm0, (%esi)
	POP (%esi)
L(shl_8_loop):

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm4
	palignr	$8, %xmm2, %xmm3
	palignr	$8, %xmm1, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jb	L(shl_8_end)

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm1
	palignr	$8, %xmm2, %xmm3
	palignr	$8, %xmm4, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jae	L(shl_8_loop)

L(shl_8_end):
	add	$32, %ecx
	add	%ecx, %edi
	add	%edi, %edx
	lea	8(%edi, %eax), %eax
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(shl_9):
	BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd))
	sub	$9, %eax
	movaps	(%eax), %xmm1
	xor	%edi, %edi
	sub	$32, %ecx
	movdqu	%xmm0, (%esi)
	POP (%esi)
L(shl_9_loop):

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm4
	palignr	$9, %xmm2, %xmm3
	palignr	$9, %xmm1, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jb	L(shl_9_end)

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm1
	palignr	$9, %xmm2, %xmm3
	palignr	$9, %xmm4, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jae	L(shl_9_loop)

L(shl_9_end):
	add	$32, %ecx
	add	%ecx, %edi
	add	%edi, %edx
	lea	9(%edi, %eax), %eax
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(shl_10):
	BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd))
	sub	$10, %eax
	movaps	(%eax), %xmm1
	xor	%edi, %edi
	sub	$32, %ecx
	movdqu	%xmm0, (%esi)
	POP (%esi)
L(shl_10_loop):

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm4
	palignr	$10, %xmm2, %xmm3
	palignr	$10, %xmm1, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jb	L(shl_10_end)

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm1
	palignr	$10, %xmm2, %xmm3
	palignr	$10, %xmm4, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jae	L(shl_10_loop)

L(shl_10_end):
	add	$32, %ecx
	add	%ecx, %edi
	add	%edi, %edx
	lea	10(%edi, %eax), %eax
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(shl_11):
	BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd))
	sub	$11, %eax
	movaps	(%eax), %xmm1
	xor	%edi, %edi
	sub	$32, %ecx
	movdqu	%xmm0, (%esi)
	POP (%esi)
L(shl_11_loop):

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm4
	palignr	$11, %xmm2, %xmm3
	palignr	$11, %xmm1, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jb	L(shl_11_end)

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm1
	palignr	$11, %xmm2, %xmm3
	palignr	$11, %xmm4, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jae	L(shl_11_loop)

L(shl_11_end):
	add	$32, %ecx
	add	%ecx, %edi
	add	%edi, %edx
	lea	11(%edi, %eax), %eax
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(shl_12):
	BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd))
	sub	$12, %eax
	movaps	(%eax), %xmm1
	xor	%edi, %edi
	sub	$32, %ecx
	movdqu	%xmm0, (%esi)
	POP (%esi)
L(shl_12_loop):

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm4
	palignr	$12, %xmm2, %xmm3
	palignr	$12, %xmm1, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jb	L(shl_12_end)

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm1
	palignr	$12, %xmm2, %xmm3
	palignr	$12, %xmm4, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jae	L(shl_12_loop)

L(shl_12_end):
	add	$32, %ecx
	add	%ecx, %edi
	add	%edi, %edx
	lea	12(%edi, %eax), %eax
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(shl_13):
	BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd))
	sub	$13, %eax
	movaps	(%eax), %xmm1
	xor	%edi, %edi
	sub	$32, %ecx
	movdqu	%xmm0, (%esi)
	POP (%esi)
L(shl_13_loop):

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm4
	palignr	$13, %xmm2, %xmm3
	palignr	$13, %xmm1, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jb	L(shl_13_end)

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm1
	palignr	$13, %xmm2, %xmm3
	palignr	$13, %xmm4, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jae	L(shl_13_loop)

L(shl_13_end):
	add	$32, %ecx
	add	%ecx, %edi
	add	%edi, %edx
	lea	13(%edi, %eax), %eax
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(shl_14):
	BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd))
	sub	$14, %eax
	movaps	(%eax), %xmm1
	xor	%edi, %edi
	sub	$32, %ecx
	movdqu	%xmm0, (%esi)
	POP (%esi)
L(shl_14_loop):

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm4
	palignr	$14, %xmm2, %xmm3
	palignr	$14, %xmm1, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jb	L(shl_14_end)

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm1
	palignr	$14, %xmm2, %xmm3
	palignr	$14, %xmm4, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jae	L(shl_14_loop)

L(shl_14_end):
	add	$32, %ecx
	add	%ecx, %edi
	add	%edi, %edx
	lea	14(%edi, %eax), %eax
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(shl_15):
	BRANCH_TO_JMPTBL_ENTRY_VALUE(L(table_48bytes_fwd))
	sub	$15, %eax
	movaps	(%eax), %xmm1
	xor	%edi, %edi
	sub	$32, %ecx
	movdqu	%xmm0, (%esi)
	POP (%esi)
L(shl_15_loop):

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm4
	palignr	$15, %xmm2, %xmm3
	palignr	$15, %xmm1, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jb	L(shl_15_end)

	movdqa	16(%eax, %edi), %xmm2
	sub	$32, %ecx
	movdqa	32(%eax, %edi), %xmm3
	movdqa	%xmm3, %xmm1
	palignr	$15, %xmm2, %xmm3
	palignr	$15, %xmm4, %xmm2
	lea	32(%edi), %edi
	movdqa	%xmm2, -32(%edx, %edi)
	movdqa	%xmm3, -16(%edx, %edi)

	jae	L(shl_15_loop)

L(shl_15_end):
	add	$32, %ecx
	add	%ecx, %edi
	add	%edi, %edx
	lea	15(%edi, %eax), %eax
	POP (%edi)
	BRANCH_TO_JMPTBL_ENTRY_TAIL(L(table_48bytes_fwd), %ecx, 4)


	ALIGN (4)
L(fwd_write_44bytes):
	movl	-44(%eax), %ecx
	movl	%ecx, -44(%edx)
L(fwd_write_40bytes):
	movl	-40(%eax), %ecx
	movl	%ecx, -40(%edx)
L(fwd_write_36bytes):
	movl	-36(%eax), %ecx
	movl	%ecx, -36(%edx)
L(fwd_write_32bytes):
	movl	-32(%eax), %ecx
	movl	%ecx, -32(%edx)
L(fwd_write_28bytes):
	movl	-28(%eax), %ecx
	movl	%ecx, -28(%edx)
L(fwd_write_24bytes):
	movl	-24(%eax), %ecx
	movl	%ecx, -24(%edx)
L(fwd_write_20bytes):
	movl	-20(%eax), %ecx
	movl	%ecx, -20(%edx)
L(fwd_write_16bytes):
	movl	-16(%eax), %ecx
	movl	%ecx, -16(%edx)
L(fwd_write_12bytes):
	movl	-12(%eax), %ecx
	movl	%ecx, -12(%edx)
L(fwd_write_8bytes):
	movl	-8(%eax), %ecx
	movl	%ecx, -8(%edx)
L(fwd_write_4bytes):
	movl	-4(%eax), %ecx
	movl	%ecx, -4(%edx)
L(fwd_write_0bytes):
#ifndef USE_AS_BCOPY
# ifdef USE_AS_MEMPCPY
	movl	%edx, %eax
# else
	movl	DEST(%esp), %eax
# endif
#endif
	RETURN

	ALIGN (4)
L(fwd_write_5bytes):
	movl	-5(%eax), %ecx
	movl	-4(%eax), %eax
	movl	%ecx, -5(%edx)
	movl	%eax, -4(%edx)
#ifndef USE_AS_BCOPY
# ifdef USE_AS_MEMPCPY
	movl	%edx, %eax
# else
	movl	DEST(%esp), %eax
# endif
#endif
	RETURN

	ALIGN (4)
L(fwd_write_45bytes):
	movl	-45(%eax), %ecx
	movl	%ecx, -45(%edx)
L(fwd_write_41bytes):
	movl	-41(%eax), %ecx
	movl	%ecx, -41(%edx)
L(fwd_write_37bytes):
	movl	-37(%eax), %ecx
	movl	%ecx, -37(%edx)
L(fwd_write_33bytes):
	movl	-33(%eax), %ecx
	movl	%ecx, -33(%edx)
L(fwd_write_29bytes):
	movl	-29(%eax), %ecx
	movl	%ecx, -29(%edx)
L(fwd_write_25bytes):
	movl	-25(%eax), %ecx
	movl	%ecx, -25(%edx)
L(fwd_write_21bytes):
	movl	-21(%eax), %ecx
	movl	%ecx, -21(%edx)
L(fwd_write_17bytes):
	movl	-17(%eax), %ecx
	movl	%ecx, -17(%edx)
L(fwd_write_13bytes):
	movl	-13(%eax), %ecx
	movl	%ecx, -13(%edx)
L(fwd_write_9bytes):
	movl	-9(%eax), %ecx
	movl	%ecx, -9(%edx)
	movl	-5(%eax), %ecx
	movl	%ecx, -5(%edx)
L(fwd_write_1bytes):
	movzbl	-1(%eax), %ecx
	movb	%cl, -1(%edx)
#ifndef USE_AS_BCOPY
# ifdef USE_AS_MEMPCPY
	movl	%edx, %eax
# else
	movl	DEST(%esp), %eax
# endif
#endif
	RETURN

	ALIGN (4)
L(fwd_write_46bytes):
	movl	-46(%eax), %ecx
	movl	%ecx, -46(%edx)
L(fwd_write_42bytes):
	movl	-42(%eax), %ecx
	movl	%ecx, -42(%edx)
L(fwd_write_38bytes):
	movl	-38(%eax), %ecx
	movl	%ecx, -38(%edx)
L(fwd_write_34bytes):
	movl	-34(%eax), %ecx
	movl	%ecx, -34(%edx)
L(fwd_write_30bytes):
	movl	-30(%eax), %ecx
	movl	%ecx, -30(%edx)
L(fwd_write_26bytes):
	movl	-26(%eax), %ecx
	movl	%ecx, -26(%edx)
L(fwd_write_22bytes):
	movl	-22(%eax), %ecx
	movl	%ecx, -22(%edx)
L(fwd_write_18bytes):
	movl	-18(%eax), %ecx
	movl	%ecx, -18(%edx)
L(fwd_write_14bytes):
	movl	-14(%eax), %ecx
	movl	%ecx, -14(%edx)
L(fwd_write_10bytes):
	movl	-10(%eax), %ecx
	movl	%ecx, -10(%edx)
L(fwd_write_6bytes):
	movl	-6(%eax), %ecx
	movl	%ecx, -6(%edx)
L(fwd_write_2bytes):
	movzwl	-2(%eax), %ecx
	movw	%cx, -2(%edx)
#ifndef USE_AS_BCOPY
# ifdef USE_AS_MEMPCPY
	movl	%edx, %eax
# else
	movl	DEST(%esp), %eax
# endif
#endif
	RETURN

	ALIGN (4)
L(fwd_write_47bytes):
	movl	-47(%eax), %ecx
	movl	%ecx, -47(%edx)
L(fwd_write_43bytes):
	movl	-43(%eax), %ecx
	movl	%ecx, -43(%edx)
L(fwd_write_39bytes):
	movl	-39(%eax), %ecx
	movl	%ecx, -39(%edx)
L(fwd_write_35bytes):
	movl	-35(%eax), %ecx
	movl	%ecx, -35(%edx)
L(fwd_write_31bytes):
	movl	-31(%eax), %ecx
	movl	%ecx, -31(%edx)
L(fwd_write_27bytes):
	movl	-27(%eax), %ecx
	movl	%ecx, -27(%edx)
L(fwd_write_23bytes):
	movl	-23(%eax), %ecx
	movl	%ecx, -23(%edx)
L(fwd_write_19bytes):
	movl	-19(%eax), %ecx
	movl	%ecx, -19(%edx)
L(fwd_write_15bytes):
	movl	-15(%eax), %ecx
	movl	%ecx, -15(%edx)
L(fwd_write_11bytes):
	movl	-11(%eax), %ecx
	movl	%ecx, -11(%edx)
L(fwd_write_7bytes):
	movl	-7(%eax), %ecx
	movl	%ecx, -7(%edx)
L(fwd_write_3bytes):
	movzwl	-3(%eax), %ecx
	movzbl	-1(%eax), %eax
	movw	%cx, -3(%edx)
	movb	%al, -1(%edx)
#ifndef USE_AS_BCOPY
# ifdef USE_AS_MEMPCPY
	movl	%edx, %eax
# else
	movl	DEST(%esp), %eax
# endif
#endif
	RETURN_END

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(large_page):
	movdqu	(%eax), %xmm1
	movdqu	%xmm0, (%esi)
	movntdq	%xmm1, (%edx)
	add	$0x10, %eax
	add	$0x10, %edx
	sub	$0x10, %ecx
	cmp	%al, %dl
	je	L(copy_page_by_rep)
L(large_page_loop_init):
	POP (%esi)
	sub	$0x80, %ecx
	POP (%edi)
L(large_page_loop):
	prefetchnta	0x1c0(%eax)
	prefetchnta	0x280(%eax)
	movdqu	(%eax), %xmm0
	movdqu	0x10(%eax), %xmm1
	movdqu	0x20(%eax), %xmm2
	movdqu	0x30(%eax), %xmm3
	movdqu	0x40(%eax), %xmm4
	movdqu	0x50(%eax), %xmm5
	movdqu	0x60(%eax), %xmm6
	movdqu	0x70(%eax), %xmm7
	lea	0x80(%eax), %eax
	lfence
	sub	$0x80, %ecx
	movntdq	%xmm0, (%edx)
	movntdq	%xmm1, 0x10(%edx)
	movntdq	%xmm2, 0x20(%edx)
	movntdq	%xmm3, 0x30(%edx)
	movntdq	%xmm4, 0x40(%edx)
	movntdq	%xmm5, 0x50(%edx)
	movntdq	%xmm6, 0x60(%edx)
	movntdq	%xmm7, 0x70(%edx)
	lea	0x80(%edx), %edx
	jae	L(large_page_loop)
	add	$0x80, %ecx
	cmp	$0x40, %ecx
	jb	L(large_page_less_64bytes)

	movdqu	(%eax), %xmm0
	movdqu	0x10(%eax), %xmm1
	movdqu	0x20(%eax), %xmm2
	movdqu	0x30(%eax), %xmm3
	lea	0x40(%eax), %eax

	movntdq	%xmm0, (%edx)
	movntdq	%xmm1, 0x10(%edx)
	movntdq	%xmm2, 0x20(%edx)
	movntdq	%xmm3, 0x30(%edx)
	lea	0x40(%edx), %edx
	sub	$0x40, %ecx
L(large_page_less_64bytes):
	cmp	$32, %ecx
	jb	L(large_page_less_32bytes)
	movdqu	(%eax), %xmm0
	movdqu	0x10(%eax), %xmm1
	lea	0x20(%eax), %eax
	movntdq	%xmm0, (%edx)
	movntdq	%xmm1, 0x10(%edx)
	lea	0x20(%edx), %edx
	sub	$0x20, %ecx
L(large_page_less_32bytes):
	add	%ecx, %edx
	add	%ecx, %eax
	sfence
	BRANCH_TO_JMPTBL_ENTRY (L(table_48bytes_fwd), %ecx, 4)

	cfi_restore_state
	cfi_remember_state
	ALIGN (4)
L(copy_page_by_rep):
	mov	%eax, %esi
	mov	%edx, %edi
	mov	%ecx, %edx
	shr	$2, %ecx
	and	$3, %edx
	rep	movsl
	jz	L(copy_page_by_rep_exit)
	cmp	$2, %edx
	jb	L(copy_page_by_rep_left_1)
	movzwl	(%esi), %eax
	movw	%ax, (%edi)
	add	$2, %esi
	add	$2, %edi
	sub	$2, %edx
	jz	L(copy_page_by_rep_exit)
L(copy_page_by_rep_left_1):
	movzbl	(%esi), %eax
	movb	%al, (%edi)
L(copy_page_by_rep_exit):
	POP (%esi)
	POP (%edi)
#ifndef USE_AS_BCOPY
	movl	DEST(%esp), %eax
# ifdef USE_AS_MEMPCPY
	movl	LEN(%esp), %ecx
	add	%ecx, %eax
# endif
#endif
	RETURN

	ALIGN (4)
L(bk_write_44bytes):
	movl	40(%eax), %ecx
	movl	%ecx, 40(%edx)
L(bk_write_40bytes):
	movl	36(%eax), %ecx
	movl	%ecx, 36(%edx)
L(bk_write_36bytes):
	movl	32(%eax), %ecx
	movl	%ecx, 32(%edx)
L(bk_write_32bytes):
	movl	28(%eax), %ecx
	movl	%ecx, 28(%edx)
L(bk_write_28bytes):
	movl	24(%eax), %ecx
	movl	%ecx, 24(%edx)
L(bk_write_24bytes):
	movl	20(%eax), %ecx
	movl	%ecx, 20(%edx)
L(bk_write_20bytes):
	movl	16(%eax), %ecx
	movl	%ecx, 16(%edx)
L(bk_write_16bytes):
	movl	12(%eax), %ecx
	movl	%ecx, 12(%edx)
L(bk_write_12bytes):
	movl	8(%eax), %ecx
	movl	%ecx, 8(%edx)
L(bk_write_8bytes):
	movl	4(%eax), %ecx
	movl	%ecx, 4(%edx)
L(bk_write_4bytes):
	movl	(%eax), %ecx
	movl	%ecx, (%edx)
L(bk_write_0bytes):
#ifndef USE_AS_BCOPY
	movl	DEST(%esp), %eax
# ifdef USE_AS_MEMPCPY
	movl	LEN(%esp), %ecx
	add	%ecx, %eax
# endif
#endif
	RETURN

	ALIGN (4)
L(bk_write_45bytes):
	movl	41(%eax), %ecx
	movl	%ecx, 41(%edx)
L(bk_write_41bytes):
	movl	37(%eax), %ecx
	movl	%ecx, 37(%edx)
L(bk_write_37bytes):
	movl	33(%eax), %ecx
	movl	%ecx, 33(%edx)
L(bk_write_33bytes):
	movl	29(%eax), %ecx
	movl	%ecx, 29(%edx)
L(bk_write_29bytes):
	movl	25(%eax), %ecx
	movl	%ecx, 25(%edx)
L(bk_write_25bytes):
	movl	21(%eax), %ecx
	movl	%ecx, 21(%edx)
L(bk_write_21bytes):
	movl	17(%eax), %ecx
	movl	%ecx, 17(%edx)
L(bk_write_17bytes):
	movl	13(%eax), %ecx
	movl	%ecx, 13(%edx)
L(bk_write_13bytes):
	movl	9(%eax), %ecx
	movl	%ecx, 9(%edx)
L(bk_write_9bytes):
	movl	5(%eax), %ecx
	movl	%ecx, 5(%edx)
L(bk_write_5bytes):
	movl	1(%eax), %ecx
	movl	%ecx, 1(%edx)
L(bk_write_1bytes):
	movzbl	(%eax), %ecx
	movb	%cl, (%edx)
#ifndef USE_AS_BCOPY
	movl	DEST(%esp), %eax
# ifdef USE_AS_MEMPCPY
	movl	LEN(%esp), %ecx
	add	%ecx, %eax
# endif
#endif
	RETURN

	ALIGN (4)
L(bk_write_46bytes):
	movl	42(%eax), %ecx
	movl	%ecx, 42(%edx)
L(bk_write_42bytes):
	movl	38(%eax), %ecx
	movl	%ecx, 38(%edx)
L(bk_write_38bytes):
	movl	34(%eax), %ecx
	movl	%ecx, 34(%edx)
L(bk_write_34bytes):
	movl	30(%eax), %ecx
	movl	%ecx, 30(%edx)
L(bk_write_30bytes):
	movl	26(%eax), %ecx
	movl	%ecx, 26(%edx)
L(bk_write_26bytes):
	movl	22(%eax), %ecx
	movl	%ecx, 22(%edx)
L(bk_write_22bytes):
	movl	18(%eax), %ecx
	movl	%ecx, 18(%edx)
L(bk_write_18bytes):
	movl	14(%eax), %ecx
	movl	%ecx, 14(%edx)
L(bk_write_14bytes):
	movl	10(%eax), %ecx
	movl	%ecx, 10(%edx)
L(bk_write_10bytes):
	movl	6(%eax), %ecx
	movl	%ecx, 6(%edx)
L(bk_write_6bytes):
	movl	2(%eax), %ecx
	movl	%ecx, 2(%edx)
L(bk_write_2bytes):
	movzwl	(%eax), %ecx
	movw	%cx, (%edx)
#ifndef USE_AS_BCOPY
	movl	DEST(%esp), %eax
# ifdef USE_AS_MEMPCPY
	movl	LEN(%esp), %ecx
	add	%ecx, %eax
# endif
#endif
	RETURN

	ALIGN (4)
L(bk_write_47bytes):
	movl	43(%eax), %ecx
	movl	%ecx, 43(%edx)
L(bk_write_43bytes):
	movl	39(%eax), %ecx
	movl	%ecx, 39(%edx)
L(bk_write_39bytes):
	movl	35(%eax), %ecx
	movl	%ecx, 35(%edx)
L(bk_write_35bytes):
	movl	31(%eax), %ecx
	movl	%ecx, 31(%edx)
L(bk_write_31bytes):
	movl	27(%eax), %ecx
	movl	%ecx, 27(%edx)
L(bk_write_27bytes):
	movl	23(%eax), %ecx
	movl	%ecx, 23(%edx)
L(bk_write_23bytes):
	movl	19(%eax), %ecx
	movl	%ecx, 19(%edx)
L(bk_write_19bytes):
	movl	15(%eax), %ecx
	movl	%ecx, 15(%edx)
L(bk_write_15bytes):
	movl	11(%eax), %ecx
	movl	%ecx, 11(%edx)
L(bk_write_11bytes):
	movl	7(%eax), %ecx
	movl	%ecx, 7(%edx)
L(bk_write_7bytes):
	movl	3(%eax), %ecx
	movl	%ecx, 3(%edx)
L(bk_write_3bytes):
	movzwl	1(%eax), %ecx
	movw	%cx, 1(%edx)
	movzbl	(%eax), %eax
	movb	%al, (%edx)
#ifndef USE_AS_BCOPY
	movl	DEST(%esp), %eax
# ifdef USE_AS_MEMPCPY
	movl	LEN(%esp), %ecx
	add	%ecx, %eax
# endif
#endif
	RETURN_END


	.pushsection .rodata.ssse3,"a",@progbits
	ALIGN (2)
L(table_48bytes_fwd):
	.int	JMPTBL (L(fwd_write_0bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_1bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_2bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_3bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_4bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_5bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_6bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_7bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_8bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_9bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_10bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_11bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_12bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_13bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_14bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_15bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_16bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_17bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_18bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_19bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_20bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_21bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_22bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_23bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_24bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_25bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_26bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_27bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_28bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_29bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_30bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_31bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_32bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_33bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_34bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_35bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_36bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_37bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_38bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_39bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_40bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_41bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_42bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_43bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_44bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_45bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_46bytes), L(table_48bytes_fwd))
	.int	JMPTBL (L(fwd_write_47bytes), L(table_48bytes_fwd))

	ALIGN (2)
L(shl_table):
	.int	JMPTBL (L(shl_0), L(shl_table))
	.int	JMPTBL (L(shl_1), L(shl_table))
	.int	JMPTBL (L(shl_2), L(shl_table))
	.int	JMPTBL (L(shl_3), L(shl_table))
	.int	JMPTBL (L(shl_4), L(shl_table))
	.int	JMPTBL (L(shl_5), L(shl_table))
	.int	JMPTBL (L(shl_6), L(shl_table))
	.int	JMPTBL (L(shl_7), L(shl_table))
	.int	JMPTBL (L(shl_8), L(shl_table))
	.int	JMPTBL (L(shl_9), L(shl_table))
	.int	JMPTBL (L(shl_10), L(shl_table))
	.int	JMPTBL (L(shl_11), L(shl_table))
	.int	JMPTBL (L(shl_12), L(shl_table))
	.int	JMPTBL (L(shl_13), L(shl_table))
	.int	JMPTBL (L(shl_14), L(shl_table))
	.int	JMPTBL (L(shl_15), L(shl_table))

	ALIGN (2)
L(table_48_bytes_bwd):
	.int	JMPTBL (L(bk_write_0bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_1bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_2bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_3bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_4bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_5bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_6bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_7bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_8bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_9bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_10bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_11bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_12bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_13bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_14bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_15bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_16bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_17bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_18bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_19bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_20bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_21bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_22bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_23bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_24bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_25bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_26bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_27bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_28bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_29bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_30bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_31bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_32bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_33bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_34bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_35bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_36bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_37bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_38bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_39bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_40bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_41bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_42bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_43bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_44bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_45bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_46bytes), L(table_48_bytes_bwd))
	.int	JMPTBL (L(bk_write_47bytes), L(table_48_bytes_bwd))

	.popsection

#ifdef USE_AS_MEMMOVE
	ALIGN (4)
L(copy_backward):
	PUSH (%esi)
	movl	%eax, %esi
	add	%ecx, %edx
	add	%ecx, %esi
	testl	$0x3, %edx
	jnz	L(bk_align)

L(bk_aligned_4):
	cmp	$64, %ecx
	jae	L(bk_write_more64bytes)

L(bk_write_64bytesless):
	cmp	$32, %ecx
	jb	L(bk_write_less32bytes)

L(bk_write_more32bytes):
	/* Copy 32 bytes at a time.  */
	sub	$32, %ecx
	movl	-4(%esi), %eax
	movl	%eax, -4(%edx)
	movl	-8(%esi), %eax
	movl	%eax, -8(%edx)
	movl	-12(%esi), %eax
	movl	%eax, -12(%edx)
	movl	-16(%esi), %eax
	movl	%eax, -16(%edx)
	movl	-20(%esi), %eax
	movl	%eax, -20(%edx)
	movl	-24(%esi), %eax
	movl	%eax, -24(%edx)
	movl	-28(%esi), %eax
	movl	%eax, -28(%edx)
	movl	-32(%esi), %eax
	movl	%eax, -32(%edx)
	sub	$32, %edx
	sub	$32, %esi

L(bk_write_less32bytes):
	movl	%esi, %eax
	sub	%ecx, %edx
	sub	%ecx, %eax
	POP (%esi)
L(bk_write_less48bytes):
	BRANCH_TO_JMPTBL_ENTRY (L(table_48_bytes_bwd), %ecx, 4)

	CFI_PUSH (%esi)
	ALIGN (4)
L(bk_align):
	cmp	$8, %ecx
	jbe	L(bk_write_less32bytes)
	testl	$1, %edx
	/* We get here only if (EDX & 3 ) != 0 so if (EDX & 1) ==0,
	   then (EDX & 2) must be != 0.  */
	jz	L(bk_got2)
	sub	$1, %esi
	sub	$1, %ecx
	sub	$1, %edx
	movzbl	(%esi), %eax
	movb	%al, (%edx)

	testl	$2, %edx
	jz	L(bk_aligned_4)

L(bk_got2):
	sub	$2, %esi
	sub	$2, %ecx
	sub	$2, %edx
	movzwl	(%esi), %eax
	movw	%ax, (%edx)
	jmp	L(bk_aligned_4)

	ALIGN (4)
L(bk_write_more64bytes):
	/* Check alignment of last byte.  */
	testl	$15, %edx
	jz	L(bk_ssse3_cpy_pre)

/* EDX is aligned 4 bytes, but not 16 bytes.  */
L(bk_ssse3_align):
	sub	$4, %esi
	sub	$4, %ecx
	sub	$4, %edx
	movl	(%esi), %eax
	movl	%eax, (%edx)

	testl	$15, %edx
	jz	L(bk_ssse3_cpy_pre)

	sub	$4, %esi
	sub	$4, %ecx
	sub	$4, %edx
	movl	(%esi), %eax
	movl	%eax, (%edx)

	testl	$15, %edx
	jz	L(bk_ssse3_cpy_pre)

	sub	$4, %esi
	sub	$4, %ecx
	sub	$4, %edx
	movl	(%esi), %eax
	movl	%eax, (%edx)

L(bk_ssse3_cpy_pre):
	cmp	$64, %ecx
	jb	L(bk_write_more32bytes)

L(bk_ssse3_cpy):
	sub	$64, %esi
	sub	$64, %ecx
	sub	$64, %edx
	movdqu	0x30(%esi), %xmm3
	movdqa	%xmm3, 0x30(%edx)
	movdqu	0x20(%esi), %xmm2
	movdqa	%xmm2, 0x20(%edx)
	movdqu	0x10(%esi), %xmm1
	movdqa	%xmm1, 0x10(%edx)
	movdqu	(%esi), %xmm0
	movdqa	%xmm0, (%edx)
	cmp	$64, %ecx
	jae	L(bk_ssse3_cpy)
	jmp	L(bk_write_64bytesless)

#endif

END (MEMCPY)

#endif