Attachment #5341 for bug #12518




	ALIGN (4)
L(80bytesormore):
#ifndef USE_AS_MEMMOVE
	lea	(%rsi,%rdx),%r9
	lea	(%rdi,%rdx),%r11
	cmp	%rdi,%r9		/* dest start >= source end */
	jae	L(nonoverlap)		/*  -> nonoverlapping */
	cmp	%rsi,%r11		/* source start >= destination end */
	jae	L(nonoverlap)		/*  -> nonoverlapping */
	movb	$0, 0
	L(nonoverlap):
#endif

#ifndef USE_AS_MEMMOVE
	cmp	%dil, %sil
	jle	L(copy_backward)
#endif





	ALIGN (4)
L(144bytesormore):
#ifndef USE_AS_MEMMOVE
	lea	(%rsi,%rdx),%r9
	lea	(%rdi,%rdx),%r11
	cmp	%rdi,%r9		/* dest start >= source end */
	jae	L(nonoverlap)		/*  -> nonoverlapping */
	cmp	%rsi,%r11		/* source start >= destination end */
	jae	L(nonoverlap)		/*  -> nonoverlapping */
	movb	$0, 0
	L(nonoverlap):
#endif

#ifndef USE_AS_MEMMOVE
	cmp	%dil, %sil

Return to bug 12518

Lines 84-89 L(copy_forward): Link Here

(-)glibc-2.13/sysdeps/x86_64/multiarch/memcpy-ssse3.S (+11 lines)
84	ALIGN (4)	84	ALIGN (4)
85	L(80bytesormore):	85	L(80bytesormore):
86	#ifndef USE_AS_MEMMOVE	86	#ifndef USE_AS_MEMMOVE
		87	lea (%rsi,%rdx),%r9
		88	lea (%rdi,%rdx),%r11
		89	cmp %rdi,%r9 /* dest start >= source end */
		90	jae L(nonoverlap) /* -> nonoverlapping */
		91	cmp %rsi,%r11 /* source start >= destination end */
		92	jae L(nonoverlap) /* -> nonoverlapping */
		93	movb $0, 0
		94	L(nonoverlap):
		95	#endif
		96
		97	#ifndef USE_AS_MEMMOVE
87	cmp %dil, %sil	98	cmp %dil, %sil
88	jle L(copy_backward)	99	jle L(copy_backward)
89	#endif	100	#endif

Lines 90-95 L(bk_write): Link Here

(-)glibc-2.13/sysdeps/x86_64/multiarch/memcpy-ssse3-back.S (+10 lines)
90		90
91	ALIGN (4)	91	ALIGN (4)
92	L(144bytesormore):	92	L(144bytesormore):
		93	#ifndef USE_AS_MEMMOVE
		94	lea (%rsi,%rdx),%r9
		95	lea (%rdi,%rdx),%r11
		96	cmp %rdi,%r9 /* dest start >= source end */
		97	jae L(nonoverlap) /* -> nonoverlapping */
		98	cmp %rsi,%r11 /* source start >= destination end */
		99	jae L(nonoverlap) /* -> nonoverlapping */
		100	movb $0, 0
		101	L(nonoverlap):
		102	#endif
93		103
94	#ifndef USE_AS_MEMMOVE	104	#ifndef USE_AS_MEMMOVE
95	cmp %dil, %sil	105	cmp %dil, %sil