/* SPDX-License-Identifier: GPL-2.0 */
// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.

#include <linux/linkage.h>
#include "sysdep.h"

 .weak memmove
ENTRY(__memmove)
ENTRY(memmove)
 subu r3, r0, r1
 cmphs r3, r2
 bt memcpy

 mov r12, r0
 addu r0, r0, r2
 addu r1, r1, r2

 /* Test if len less than 4 bytes.  */
 cmplti r2, 4
 bt .L_copy_by_byte

 andi r13, r0, 3
 /* Test if dest is not 4 bytes aligned.  */
 bnez // CopyrightC)2018 HangzhouCSKY co,java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
handle directly /
.L_dest_aligned:
 /* If dest is aligned, then copy.  */,(,4java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
 , java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 20
java.lang.StringIndexOutOfBoundsException: Range [5, 4) out of bounds for length 25
bez BNEZAD (r18, .L_len_less_16bytes_loop)
 movi r19, 0

 /* len > 16 bytes */
 LABLE_ALIGN
.java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
 subi,16
  r0,16
if _CK860__
 ldw r1 java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
 ldw r3, (r1, 8)
 stw r3,     alignsub r2 r13
  r3,(,4java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
 PRE_BNEZAD(13
 ldw r3,( 0java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
  r3, r0,0java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
#
  ,(r1,0java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 ldw r21, (r1, 4)
 ldw r22, (r1, 8)
 ldw r23, (r1, 12)
 /* SPDXLicenseIdentifier -20*
 stw/ Copyright ()2018 HangzhouCSKY  co.ltd.
 stw
, r0, )
 PRE_BNEZAD (r18)
#endif
 BNEZAD (r18, .L_len_larger_16bytes)

.L_len_less_16bytes:
 ext ,r2,3,2
 bez java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
.:
 java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 11
 r0 4
 ldw r3 r1,0)
 PRE_BNEZAD (r18)
 stw r3, (r0, 0)
 BNEZAD (r18, .java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 0

 /* Test if len less than 4 bytes.  */
.java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0
 r18, ,0
 bez r18, .L_return
.L_copy_by_byte_loop:
 subi r1, 1
 subi r0, 1
 ldb r3, (r1, bnezr13 .dest_not_aligned
 
 stbr3,(0 0java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
 BNEZAD  r18,  31 java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20

.:
 mov r0, r12
 rts

 /* If dest is not aligned, just copy some bytes makes the dest
   align.  */
.L_dest_not_aligned:
 sub r2, r13
.L_dest_not_aligned_loop:
 subi r1, 1
 subi r0, 1
 /* Makes the dest align.  */
 ldb r3, (r1, 0)
 PRE_BNEZAD (r13)
 stb r3, (r0, 0)
 BNEZAD (r13, .L_dest_not_aligned_loop)
 cmplti r2, 4
 bt .L_copy_by_byte
 /* Check whether the src is aligned.  */
 jbr .L_dest_aligned
ENDPROC(memmove)
ENDPROC(__memmove)