x86: Move strcmp SSE2 implementation to multiarch/strcmp-sse2.S

This commit doesn't affect libc.so.6, its just housekeeping to prepare
for adding explicit ISA level support.

Because strcmp-sse2.S implements so many functions (more from
avx2/evex/sse42) add a new file 'strcmp-naming.h' to assist in
getting the correct symbol name for all the function across
multiarch/non-multiarch builds.

Tested build on x86_64 and x86_32 with/without multiarch.

1 files changed, 3 insertions, 2144 deletions

diff --git a/sysdeps/x86_64/strcmp.S b/sysdeps/x86_64/strcmp.S
index c38dc627f9..19e54bd3a7 100644
--- a/sysdeps/x86_64/strcmp.S
+++ b/sysdeps/x86_64/strcmp.S
@@ -16,2148 +16,7 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-#include <sysdep.h>
-#include "asm-syntax.h"
+/* Symbol = strcmp.  */
 
-#undef UPDATE_STRNCMP_COUNTER
-
-#ifndef LABEL
-#define LABEL(l) L(l)
-#endif
-
-#ifdef USE_AS_STRNCMP
-/* Since the counter, %r11, is unsigned, we branch to strcmp_exitz
-   if the new counter > the old one or is 0.  */
-# define UPDATE_STRNCMP_COUNTER				\
-	/* calculate left number to compare */		\
-	lea	-16(%rcx, %r11), %r9;			\
-	cmp	%r9, %r11;				\
-	jb	LABEL(strcmp_exitz);			\
-	test	%r9, %r9;				\
-	je	LABEL(strcmp_exitz);			\
-	mov	%r9, %r11
-
-#elif defined USE_AS_STRCASECMP_L
-# include "locale-defines.h"
-
-# define UPDATE_STRNCMP_COUNTER
-#elif defined USE_AS_STRNCASECMP_L
-# include "locale-defines.h"
-
-# define UPDATE_STRNCMP_COUNTER				\
-	/* calculate left number to compare */		\
-	lea	-16(%rcx, %r11), %r9;			\
-	cmp	%r9, %r11;				\
-	jb	LABEL(strcmp_exitz);			\
-	test	%r9, %r9;				\
-	je	LABEL(strcmp_exitz);			\
-	mov	%r9, %r11
-#else
-# define UPDATE_STRNCMP_COUNTER
-# ifndef STRCMP
-#  define STRCMP strcmp
-# endif
-#endif
-
-	.text
-#ifdef USE_AS_STRCASECMP_L
-# ifndef ENTRY2
-#  define ENTRY2(name) ENTRY (name)
-#  define END2(name) END (name)
-# endif
-
-ENTRY2 (__strcasecmp)
-	movq	__libc_tsd_LOCALE@gottpoff(%rip),%rax
-	mov	%fs:(%rax),%RDX_LP
-
-	/* Either 1 or 5 bytes (dependeing if CET is enabled).  */
-	.p2align 4
-END2 (__strcasecmp)
-# ifndef NO_NOLOCALE_ALIAS
-weak_alias (__strcasecmp, strcasecmp)
-libc_hidden_def (__strcasecmp)
-# endif
-	/* FALLTHROUGH to strcasecmp_l.  */
-#elif defined USE_AS_STRNCASECMP_L
-# ifndef ENTRY2
-#  define ENTRY2(name) ENTRY (name)
-#  define END2(name) END (name)
-# endif
-
-ENTRY2 (__strncasecmp)
-	movq	__libc_tsd_LOCALE@gottpoff(%rip),%rax
-	mov	%fs:(%rax),%RCX_LP
-
-	/* Either 1 or 5 bytes (dependeing if CET is enabled).  */
-	.p2align 4
-END2 (__strncasecmp)
-# ifndef NO_NOLOCALE_ALIAS
-weak_alias (__strncasecmp, strncasecmp)
-libc_hidden_def (__strncasecmp)
-# endif
-	/* FALLTHROUGH to strncasecmp_l.  */
-#endif
-
-ENTRY (STRCMP)
-#ifdef USE_AS_STRCASECMP_L
-	/* We have to fall back on the C implementation for locales
-	   with encodings not matching ASCII for single bytes.  */
-# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
-	mov	LOCALE_T___LOCALES+LC_CTYPE*LP_SIZE(%rdx), %RAX_LP
-# else
-	mov	(%rdx), %RAX_LP
-# endif
-	testl	$1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%rax)
-	jne	__strcasecmp_l_nonascii
-#elif defined USE_AS_STRNCASECMP_L
-	/* We have to fall back on the C implementation for locales
-	   with encodings not matching ASCII for single bytes.  */
-# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0
-	mov	LOCALE_T___LOCALES+LC_CTYPE*LP_SIZE(%rcx), %RAX_LP
-# else
-	mov	(%rcx), %RAX_LP
-# endif
-	testl	$1, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%rax)
-	jne	__strncasecmp_l_nonascii
-#endif
-
-/*
- * This implementation uses SSE to compare up to 16 bytes at a time.
- */
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	test	%RDX_LP, %RDX_LP
-	je	LABEL(strcmp_exitz)
-	cmp	$1, %RDX_LP
-	je	LABEL(Byte0)
-	mov	%RDX_LP, %R11_LP
-#endif
-	mov	%esi, %ecx
-	mov	%edi, %eax
-/* Use 64bit AND here to avoid long NOP padding.  */
-	and	$0x3f, %rcx		/* rsi alignment in cache line */
-	and	$0x3f, %rax		/* rdi alignment in cache line */
-#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
-	.section .rodata.cst16,"aM",@progbits,16
-	.align 16
-.Llcase_min:
-	.quad	0x3f3f3f3f3f3f3f3f
-	.quad	0x3f3f3f3f3f3f3f3f
-.Llcase_max:
-	.quad	0x9999999999999999
-	.quad	0x9999999999999999
-.Lcase_add:
-	.quad	0x2020202020202020
-	.quad	0x2020202020202020
-	.previous
-	movdqa	.Llcase_min(%rip), %xmm5
-# define LCASE_MIN_reg %xmm5
-	movdqa	.Llcase_max(%rip), %xmm6
-# define LCASE_MAX_reg %xmm6
-	movdqa	.Lcase_add(%rip), %xmm7
-# define CASE_ADD_reg %xmm7
-#endif
-	cmp	$0x30, %ecx
-	ja	LABEL(crosscache)	/* rsi: 16-byte load will cross cache line */
-	cmp	$0x30, %eax
-	ja	LABEL(crosscache)	/* rdi: 16-byte load will cross cache line */
-	movlpd	(%rdi), %xmm1
-	movlpd	(%rsi), %xmm2
-	movhpd	8(%rdi), %xmm1
-	movhpd	8(%rsi), %xmm2
-#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
-#  define TOLOWER(reg1, reg2) \
-	movdqa	LCASE_MIN_reg, %xmm8;					\
-	movdqa	LCASE_MIN_reg, %xmm9;					\
-	paddb	reg1, %xmm8;					\
-	paddb	reg2, %xmm9;					\
-	pcmpgtb	LCASE_MAX_reg, %xmm8;				\
-	pcmpgtb	LCASE_MAX_reg, %xmm9;				\
-	pandn	CASE_ADD_reg, %xmm8;					\
-	pandn	CASE_ADD_reg, %xmm9;					\
-	paddb	%xmm8, reg1;					\
-	paddb	%xmm9, reg2
-	TOLOWER	(%xmm1, %xmm2)
-#else
-# define TOLOWER(reg1, reg2)
-#endif
-	pxor	%xmm0, %xmm0		/* clear %xmm0 for null char checks */
-	pcmpeqb	%xmm1, %xmm0		/* Any null chars? */
-	pcmpeqb	%xmm2, %xmm1		/* compare first 16 bytes for equality */
-	psubb	%xmm0, %xmm1		/* packed sub of comparison results*/
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx		/* if first 16 bytes are same, edx == 0xffff */
-	jnz	LABEL(less16bytes)	/* If not, find different value or null char */
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)	/* finish comparision */
-#endif
-	add	$16, %rsi		/* prepare to search next 16 bytes */
-	add	$16, %rdi		/* prepare to search next 16 bytes */
-
-	/*
-	 * Determine source and destination string offsets from 16-byte alignment.
-	 * Use relative offset difference between the two to determine which case
-	 * below to use.
-	 */
-	.p2align 4
-LABEL(crosscache):
-	and	$0xfffffffffffffff0, %rsi	/* force %rsi is 16 byte aligned */
-	and	$0xfffffffffffffff0, %rdi	/* force %rdi is 16 byte aligned */
-	mov	$0xffff, %edx			/* for equivalent offset */
-	xor	%r8d, %r8d
-	and	$0xf, %ecx			/* offset of rsi */
-	and	$0xf, %eax			/* offset of rdi */
-	cmp	%eax, %ecx
-	je	LABEL(ashr_0)			/* rsi and rdi relative offset same */
-	ja	LABEL(bigger)
-	mov	%edx, %r8d			/* r8d is offset flag for exit tail */
-	xchg	%ecx, %eax
-	xchg	%rsi, %rdi
-LABEL(bigger):
-	lea	15(%rax), %r9
-	sub	%rcx, %r9
-	lea	LABEL(unaligned_table)(%rip), %r10
-	movslq	(%r10, %r9,4), %r9
-	lea	(%r10, %r9), %r10
-	_CET_NOTRACK jmp *%r10			/* jump to corresponding case */
-
-/*
- * The following cases will be handled by ashr_0
- *  rcx(offset of rsi)  rax(offset of rdi)  relative offset  corresponding case
- *        n(0~15)            n(0~15)           15(15+ n-n)         ashr_0
- */
-	.p2align 4
-LABEL(ashr_0):
-
-	movdqa	(%rsi), %xmm1
-	pxor	%xmm0, %xmm0			/* clear %xmm0 for null char check */
-	pcmpeqb	%xmm1, %xmm0			/* Any null chars? */
-#if !defined USE_AS_STRCASECMP_L && !defined USE_AS_STRNCASECMP_L
-	pcmpeqb	(%rdi), %xmm1			/* compare 16 bytes for equality */
-#else
-	movdqa	(%rdi), %xmm2
-	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm2, %xmm1			/* compare 16 bytes for equality */
-#endif
-	psubb	%xmm0, %xmm1			/* packed sub of comparison results*/
-	pmovmskb %xmm1, %r9d
-	shr	%cl, %edx			/* adjust 0xffff for offset */
-	shr	%cl, %r9d			/* adjust for 16-byte offset */
-	sub	%r9d, %edx
-	/*
-	 * edx must be the same with r9d if in left byte (16-rcx) is equal to
-	 * the start from (16-rax) and no null char was seen.
-	 */
-	jne	LABEL(less32bytes)		/* mismatch or null char */
-	UPDATE_STRNCMP_COUNTER
-	mov	$16, %rcx
-	mov	$16, %r9
-	pxor	%xmm0, %xmm0			/* clear xmm0, may have changed above */
-
-	/*
-	 * Now both strings are aligned at 16-byte boundary. Loop over strings
-	 * checking 32-bytes per iteration.
-	 */
-	.p2align 4
-LABEL(loop_ashr_0):
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)		/* mismatch or null char seen */
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-	add	$16, %rcx
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-	add	$16, %rcx
-	jmp	LABEL(loop_ashr_0)
-
-/*
- * The following cases will be handled by ashr_1
- * rcx(offset of rsi)  rax(offset of rdi)   relative offset	corresponding case
- *        n(15)            n -15            0(15 +(n-15) - n)         ashr_1
- */
-	.p2align 4
-LABEL(ashr_1):
-	pxor	%xmm0, %xmm0
-	movdqa	(%rdi), %xmm2
-	movdqa	(%rsi), %xmm1
-	pcmpeqb	%xmm1, %xmm0		/* Any null chars? */
-	pslldq	$15, %xmm2		/* shift first string to align with second */
-	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, %xmm2		/* compare 16 bytes for equality */
-	psubb	%xmm0, %xmm2		/* packed sub of comparison results*/
-	pmovmskb %xmm2, %r9d
-	shr	%cl, %edx		/* adjust 0xffff for offset */
-	shr	%cl, %r9d		/* adjust for 16-byte offset */
-	sub	%r9d, %edx
-	jnz	LABEL(less32bytes)	/* mismatch or null char seen */
-	movdqa	(%rdi), %xmm3
-	UPDATE_STRNCMP_COUNTER
-
-	pxor	%xmm0, %xmm0
-	mov	$16, %rcx		/* index for loads*/
-	mov	$1, %r9d		/* byte position left over from less32bytes case */
-	/*
-	 * Setup %r10 value allows us to detect crossing a page boundary.
-	 * When %r10 goes positive we have crossed a page boundary and
-	 * need to do a nibble.
-	 */
-	lea	1(%rdi), %r10
-	and	$0xfff, %r10		/* offset into 4K page */
-	sub	$0x1000, %r10		/* subtract 4K pagesize */
-
-	.p2align 4
-LABEL(loop_ashr_1):
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_1)	/* cross page boundary */
-
-LABEL(gobble_ashr_1):
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4		 /* store for next cycle */
-
-	psrldq	$1, %xmm3
-	pslldq	$15, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_1)	/* cross page boundary */
-
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4		/* store for next cycle */
-
-	psrldq	$1, %xmm3
-	pslldq	$15, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-	jmp	LABEL(loop_ashr_1)
-
-	/*
-	 * Nibble avoids loads across page boundary. This is to avoid a potential
-	 * access into unmapped memory.
-	 */
-	.p2align 4
-LABEL(nibble_ashr_1):
-	pcmpeqb	%xmm3, %xmm0		 /* check nibble for null char*/
-	pmovmskb %xmm0, %edx
-	test	$0xfffe, %edx
-	jnz	LABEL(ashr_1_exittail)	/* find null char*/
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	cmp	$15, %r11
-	jbe	LABEL(ashr_1_exittail)
-#endif
-
-	pxor	%xmm0, %xmm0
-	sub	$0x1000, %r10		/* substract 4K from %r10 */
-	jmp	LABEL(gobble_ashr_1)
-
-	/*
-	 * Once find null char, determine if there is a string mismatch
-	 * before the null char.
-	 */
-	.p2align 4
-LABEL(ashr_1_exittail):
-	movdqa	(%rsi, %rcx), %xmm1
-	psrldq	$1, %xmm0
-	psrldq	$1, %xmm3
-	jmp	LABEL(aftertail)
-
-/*
- * The following cases will be handled by ashr_2
- * rcx(offset of rsi)  rax(offset of rdi)   relative offset   corresponding case
- *        n(14~15)            n -14         1(15 +(n-14) - n)         ashr_2
- */
-	.p2align 4
-LABEL(ashr_2):
-	pxor	%xmm0, %xmm0
-	movdqa	(%rdi), %xmm2
-	movdqa	(%rsi), %xmm1
-	pcmpeqb	%xmm1, %xmm0
-	pslldq	$14, %xmm2
-	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, %xmm2
-	psubb	%xmm0, %xmm2
-	pmovmskb %xmm2, %r9d
-	shr	%cl, %edx
-	shr	%cl, %r9d
-	sub	%r9d, %edx
-	jnz	LABEL(less32bytes)
-	movdqa	(%rdi), %xmm3
-	UPDATE_STRNCMP_COUNTER
-
-	pxor	%xmm0, %xmm0
-	mov	$16, %rcx	/* index for loads */
-	mov	$2, %r9d	/* byte position left over from less32bytes case */
-	/*
-	 * Setup %r10 value allows us to detect crossing a page boundary.
-	 * When %r10 goes positive we have crossed a page boundary and
-	 * need to do a nibble.
-	 */
-	lea	2(%rdi), %r10
-	and	$0xfff, %r10	/* offset into 4K page */
-	sub	$0x1000, %r10	/* subtract 4K pagesize */
-
-	.p2align 4
-LABEL(loop_ashr_2):
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_2)
-
-LABEL(gobble_ashr_2):
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$2, %xmm3
-	pslldq	$14, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_2)	/* cross page boundary */
-
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$2, %xmm3
-	pslldq	$14, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-	jmp	LABEL(loop_ashr_2)
-
-	.p2align 4
-LABEL(nibble_ashr_2):
-	pcmpeqb	%xmm3, %xmm0		/* check nibble for null char */
-	pmovmskb %xmm0, %edx
-	test	$0xfffc, %edx
-	jnz	LABEL(ashr_2_exittail)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	cmp	$14, %r11
-	jbe	LABEL(ashr_2_exittail)
-#endif
-
-	pxor	%xmm0, %xmm0
-	sub	$0x1000, %r10
-	jmp	LABEL(gobble_ashr_2)
-
-	.p2align 4
-LABEL(ashr_2_exittail):
-	movdqa	(%rsi, %rcx), %xmm1
-	psrldq	$2, %xmm0
-	psrldq	$2, %xmm3
-	jmp	LABEL(aftertail)
-
-/*
- * The following cases will be handled by ashr_3
- *  rcx(offset of rsi)  rax(offset of rdi)  relative offset	 corresponding case
- *        n(13~15)            n -13         2(15 +(n-13) - n)         ashr_3
- */
-	.p2align 4
-LABEL(ashr_3):
-	pxor	%xmm0, %xmm0
-	movdqa	(%rdi), %xmm2
-	movdqa	(%rsi), %xmm1
-	pcmpeqb	%xmm1, %xmm0
-	pslldq	$13, %xmm2
-	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, %xmm2
-	psubb	%xmm0, %xmm2
-	pmovmskb %xmm2, %r9d
-	shr	%cl, %edx
-	shr	%cl, %r9d
-	sub	%r9d, %edx
-	jnz	LABEL(less32bytes)
-	movdqa	(%rdi), %xmm3
-
-	UPDATE_STRNCMP_COUNTER
-
-	pxor	%xmm0, %xmm0
-	mov	$16, %rcx	/* index for loads */
-	mov	$3, %r9d	/* byte position left over from less32bytes case */
-	/*
-	 * Setup %r10 value allows us to detect crossing a page boundary.
-	 * When %r10 goes positive we have crossed a page boundary and
-	 * need to do a nibble.
-	 */
-	lea	3(%rdi), %r10
-	and	$0xfff, %r10	/* offset into 4K page */
-	sub	$0x1000, %r10	/* subtract 4K pagesize */
-
-	.p2align 4
-LABEL(loop_ashr_3):
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_3)
-
-LABEL(gobble_ashr_3):
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$3, %xmm3
-	pslldq	$13, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_3)	/* cross page boundary */
-
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$3, %xmm3
-	pslldq	$13, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-	jmp	LABEL(loop_ashr_3)
-
-	.p2align 4
-LABEL(nibble_ashr_3):
-	pcmpeqb	%xmm3, %xmm0		/* check nibble for null char */
-	pmovmskb %xmm0, %edx
-	test	$0xfff8, %edx
-	jnz	LABEL(ashr_3_exittail)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	cmp	$13, %r11
-	jbe	LABEL(ashr_3_exittail)
-#endif
-
-	pxor	%xmm0, %xmm0
-	sub	$0x1000, %r10
-	jmp	LABEL(gobble_ashr_3)
-
-	.p2align 4
-LABEL(ashr_3_exittail):
-	movdqa	(%rsi, %rcx), %xmm1
-	psrldq	$3, %xmm0
-	psrldq	$3, %xmm3
-	jmp	LABEL(aftertail)
-
-/*
- * The following cases will be handled by ashr_4
- *  rcx(offset of rsi)  rax(offset of rdi)  relative offset	 corresponding case
- *        n(12~15)            n -12         3(15 +(n-12) - n)         ashr_4
- */
-	.p2align 4
-LABEL(ashr_4):
-	pxor	%xmm0, %xmm0
-	movdqa	(%rdi), %xmm2
-	movdqa	(%rsi), %xmm1
-	pcmpeqb	%xmm1, %xmm0
-	pslldq	$12, %xmm2
-	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, %xmm2
-	psubb	%xmm0, %xmm2
-	pmovmskb %xmm2, %r9d
-	shr	%cl, %edx
-	shr	%cl, %r9d
-	sub	%r9d, %edx
-	jnz	LABEL(less32bytes)
-	movdqa	(%rdi), %xmm3
-
-	UPDATE_STRNCMP_COUNTER
-
-	pxor	%xmm0, %xmm0
-	mov	$16, %rcx	/* index for loads */
-	mov	$4, %r9d	/* byte position left over from less32bytes case */
-	/*
-	 * Setup %r10 value allows us to detect crossing a page boundary.
-	 * When %r10 goes positive we have crossed a page boundary and
-	 * need to do a nibble.
-	 */
-	lea	4(%rdi), %r10
-	and	$0xfff, %r10	/* offset into 4K page */
-	sub	$0x1000, %r10	/* subtract 4K pagesize */
-
-	.p2align 4
-LABEL(loop_ashr_4):
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_4)
-
-LABEL(gobble_ashr_4):
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$4, %xmm3
-	pslldq	$12, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_4)	/* cross page boundary */
-
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$4, %xmm3
-	pslldq	$12, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-	jmp	LABEL(loop_ashr_4)
-
-	.p2align 4
-LABEL(nibble_ashr_4):
-	pcmpeqb	%xmm3, %xmm0		/* check nibble for null char */
-	pmovmskb %xmm0, %edx
-	test	$0xfff0, %edx
-	jnz	LABEL(ashr_4_exittail)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	cmp	$12, %r11
-	jbe	LABEL(ashr_4_exittail)
-#endif
-
-	pxor	%xmm0, %xmm0
-	sub	$0x1000, %r10
-	jmp	LABEL(gobble_ashr_4)
-
-	.p2align 4
-LABEL(ashr_4_exittail):
-	movdqa	(%rsi, %rcx), %xmm1
-	psrldq	$4, %xmm0
-	psrldq	$4, %xmm3
-	jmp	LABEL(aftertail)
-
-/*
- * The following cases will be handled by ashr_5
- *  rcx(offset of rsi)  rax(offset of rdi)        relative offset      corresponding case
- *        n(11~15)          n - 11		  4(15 +(n-11) - n)         ashr_5
- */
-	.p2align 4
-LABEL(ashr_5):
-	pxor	%xmm0, %xmm0
-	movdqa	(%rdi), %xmm2
-	movdqa	(%rsi), %xmm1
-	pcmpeqb	%xmm1, %xmm0
-	pslldq	$11, %xmm2
-	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, %xmm2
-	psubb	%xmm0, %xmm2
-	pmovmskb %xmm2, %r9d
-	shr	%cl, %edx
-	shr	%cl, %r9d
-	sub	%r9d, %edx
-	jnz	LABEL(less32bytes)
-	movdqa	(%rdi), %xmm3
-
-	UPDATE_STRNCMP_COUNTER
-
-	pxor	%xmm0, %xmm0
-	mov	$16, %rcx	/* index for loads */
-	mov	$5, %r9d	/* byte position left over from less32bytes case */
-	/*
-	 * Setup %r10 value allows us to detect crossing a page boundary.
-	 * When %r10 goes positive we have crossed a page boundary and
-	 * need to do a nibble.
-	 */
-	lea	5(%rdi), %r10
-	and	$0xfff, %r10	/* offset into 4K page */
-	sub	$0x1000, %r10	/* subtract 4K pagesize */
-
-	.p2align 4
-LABEL(loop_ashr_5):
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_5)
-
-LABEL(gobble_ashr_5):
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$5, %xmm3
-	pslldq	$11, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_5)	/* cross page boundary */
-
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$5, %xmm3
-	pslldq	$11, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-	jmp	LABEL(loop_ashr_5)
-
-	.p2align 4
-LABEL(nibble_ashr_5):
-	pcmpeqb	%xmm3, %xmm0		/* check nibble for null char */
-	pmovmskb %xmm0, %edx
-	test	$0xffe0, %edx
-	jnz	LABEL(ashr_5_exittail)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	cmp	$11, %r11
-	jbe	LABEL(ashr_5_exittail)
-#endif
-
-	pxor	%xmm0, %xmm0
-	sub	$0x1000, %r10
-	jmp	LABEL(gobble_ashr_5)
-
-	.p2align 4
-LABEL(ashr_5_exittail):
-	movdqa	(%rsi, %rcx), %xmm1
-	psrldq	$5, %xmm0
-	psrldq	$5, %xmm3
-	jmp	LABEL(aftertail)
-
-/*
- * The following cases will be handled by ashr_6
- *  rcx(offset of rsi)  rax(offset of rdi)        relative offset      corresponding case
- *        n(10~15)          n - 10		  5(15 +(n-10) - n)         ashr_6
- */
-	.p2align 4
-LABEL(ashr_6):
-	pxor	%xmm0, %xmm0
-	movdqa	(%rdi), %xmm2
-	movdqa	(%rsi), %xmm1
-	pcmpeqb	%xmm1, %xmm0
-	pslldq	$10, %xmm2
-	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, %xmm2
-	psubb	%xmm0, %xmm2
-	pmovmskb %xmm2, %r9d
-	shr	%cl, %edx
-	shr	%cl, %r9d
-	sub	%r9d, %edx
-	jnz	LABEL(less32bytes)
-	movdqa	(%rdi), %xmm3
-
-	UPDATE_STRNCMP_COUNTER
-
-	pxor	%xmm0, %xmm0
-	mov	$16, %rcx	/* index for loads */
-	mov	$6, %r9d	/* byte position left over from less32bytes case */
-	/*
-	 * Setup %r10 value allows us to detect crossing a page boundary.
-	 * When %r10 goes positive we have crossed a page boundary and
-	 * need to do a nibble.
-	 */
-	lea	6(%rdi), %r10
-	and	$0xfff, %r10	/* offset into 4K page */
-	sub	$0x1000, %r10	/* subtract 4K pagesize */
-
-	.p2align 4
-LABEL(loop_ashr_6):
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_6)
-
-LABEL(gobble_ashr_6):
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$6, %xmm3
-	pslldq	$10, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_6)	/* cross page boundary */
-
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$6, %xmm3
-	pslldq	$10, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-	jmp	LABEL(loop_ashr_6)
-
-	.p2align 4
-LABEL(nibble_ashr_6):
-	pcmpeqb	%xmm3, %xmm0		/* check nibble for null char */
-	pmovmskb %xmm0, %edx
-	test	$0xffc0, %edx
-	jnz	LABEL(ashr_6_exittail)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	cmp	$10, %r11
-	jbe	LABEL(ashr_6_exittail)
-#endif
-
-	pxor	%xmm0, %xmm0
-	sub	$0x1000, %r10
-	jmp	LABEL(gobble_ashr_6)
-
-	.p2align 4
-LABEL(ashr_6_exittail):
-	movdqa	(%rsi, %rcx), %xmm1
-	psrldq	$6, %xmm0
-	psrldq	$6, %xmm3
-	jmp	LABEL(aftertail)
-
-/*
- * The following cases will be handled by ashr_7
- *  rcx(offset of rsi)  rax(offset of rdi)        relative offset      corresponding case
- *        n(9~15)          n - 9                6(15 +(n - 9) - n)         ashr_7
- */
-	.p2align 4
-LABEL(ashr_7):
-	pxor	%xmm0, %xmm0
-	movdqa	(%rdi), %xmm2
-	movdqa	(%rsi), %xmm1
-	pcmpeqb	%xmm1, %xmm0
-	pslldq	$9, %xmm2
-	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, %xmm2
-	psubb	%xmm0, %xmm2
-	pmovmskb %xmm2, %r9d
-	shr	%cl, %edx
-	shr	%cl, %r9d
-	sub	%r9d, %edx
-	jnz	LABEL(less32bytes)
-	movdqa	(%rdi), %xmm3
-
-	UPDATE_STRNCMP_COUNTER
-
-	pxor	%xmm0, %xmm0
-	mov	$16, %rcx	/* index for loads */
-	mov	$7, %r9d	/* byte position left over from less32bytes case */
-	/*
-	 * Setup %r10 value allows us to detect crossing a page boundary.
-	 * When %r10 goes positive we have crossed a page boundary and
-	 * need to do a nibble.
-	 */
-	lea	7(%rdi), %r10
-	and	$0xfff, %r10	/* offset into 4K page */
-	sub	$0x1000, %r10	/* subtract 4K pagesize */
-
-	.p2align 4
-LABEL(loop_ashr_7):
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_7)
-
-LABEL(gobble_ashr_7):
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$7, %xmm3
-	pslldq	$9, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_7)	/* cross page boundary */
-
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$7, %xmm3
-	pslldq	$9, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-	jmp	LABEL(loop_ashr_7)
-
-	.p2align 4
-LABEL(nibble_ashr_7):
-	pcmpeqb	%xmm3, %xmm0		/* check nibble for null char */
-	pmovmskb %xmm0, %edx
-	test	$0xff80, %edx
-	jnz	LABEL(ashr_7_exittail)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	cmp	$9, %r11
-	jbe	LABEL(ashr_7_exittail)
-#endif
-
-	pxor	%xmm0, %xmm0
-	sub	$0x1000, %r10
-	jmp	LABEL(gobble_ashr_7)
-
-	.p2align 4
-LABEL(ashr_7_exittail):
-	movdqa	(%rsi, %rcx), %xmm1
-	psrldq	$7, %xmm0
-	psrldq	$7, %xmm3
-	jmp	LABEL(aftertail)
-
-/*
- *  The following cases will be handled by ashr_8
- *  rcx(offset of rsi)  rax(offset of rdi)        relative offset	 corresponding case
- *        n(8~15)          n - 8                7(15 +(n - 8) - n)         ashr_8
- */
-	.p2align 4
-LABEL(ashr_8):
-	pxor	%xmm0, %xmm0
-	movdqa	(%rdi), %xmm2
-	movdqa	(%rsi), %xmm1
-	pcmpeqb	%xmm1, %xmm0
-	pslldq	$8, %xmm2
-	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, %xmm2
-	psubb	%xmm0, %xmm2
-	pmovmskb %xmm2, %r9d
-	shr	%cl, %edx
-	shr	%cl, %r9d
-	sub	%r9d, %edx
-	jnz	LABEL(less32bytes)
-	movdqa	(%rdi), %xmm3
-
-	UPDATE_STRNCMP_COUNTER
-
-	pxor	%xmm0, %xmm0
-	mov	$16, %rcx	/* index for loads */
-	mov	$8, %r9d	/* byte position left over from less32bytes case */
-	/*
-	 * Setup %r10 value allows us to detect crossing a page boundary.
-	 * When %r10 goes positive we have crossed a page boundary and
-	 * need to do a nibble.
-	 */
-	lea	8(%rdi), %r10
-	and	$0xfff, %r10	/* offset into 4K page */
-	sub	$0x1000, %r10	/* subtract 4K pagesize */
-
-	.p2align 4
-LABEL(loop_ashr_8):
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_8)
-
-LABEL(gobble_ashr_8):
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$8, %xmm3
-	pslldq	$8, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_8)	/* cross page boundary */
-
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$8, %xmm3
-	pslldq	$8, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-	jmp	LABEL(loop_ashr_8)
-
-	.p2align 4
-LABEL(nibble_ashr_8):
-	pcmpeqb	%xmm3, %xmm0		/* check nibble for null char */
-	pmovmskb %xmm0, %edx
-	test	$0xff00, %edx
-	jnz	LABEL(ashr_8_exittail)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	cmp	$8, %r11
-	jbe	LABEL(ashr_8_exittail)
-#endif
-
-	pxor	%xmm0, %xmm0
-	sub	$0x1000, %r10
-	jmp	LABEL(gobble_ashr_8)
-
-	.p2align 4
-LABEL(ashr_8_exittail):
-	movdqa	(%rsi, %rcx), %xmm1
-	psrldq	$8, %xmm0
-	psrldq	$8, %xmm3
-	jmp	LABEL(aftertail)
-
-/*
- *  The following cases will be handled by ashr_9
- *  rcx(offset of rsi)  rax(offset of rdi)        relative offset	 corresponding case
- *        n(7~15)          n - 7                8(15 +(n - 7) - n)         ashr_9
- */
-	.p2align 4
-LABEL(ashr_9):
-	pxor	%xmm0, %xmm0
-	movdqa	(%rdi), %xmm2
-	movdqa	(%rsi), %xmm1
-	pcmpeqb	%xmm1, %xmm0
-	pslldq	$7, %xmm2
-	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, %xmm2
-	psubb	%xmm0, %xmm2
-	pmovmskb %xmm2, %r9d
-	shr	%cl, %edx
-	shr	%cl, %r9d
-	sub	%r9d, %edx
-	jnz	LABEL(less32bytes)
-	movdqa	(%rdi), %xmm3
-
-	UPDATE_STRNCMP_COUNTER
-
-	pxor	%xmm0, %xmm0
-	mov	$16, %rcx	/* index for loads */
-	mov	$9, %r9d	/* byte position left over from less32bytes case */
-	/*
-	 * Setup %r10 value allows us to detect crossing a page boundary.
-	 * When %r10 goes positive we have crossed a page boundary and
-	 * need to do a nibble.
-	 */
-	lea	9(%rdi), %r10
-	and	$0xfff, %r10	/* offset into 4K page */
-	sub	$0x1000, %r10	/* subtract 4K pagesize */
-
-	.p2align 4
-LABEL(loop_ashr_9):
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_9)
-
-LABEL(gobble_ashr_9):
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$9, %xmm3
-	pslldq	$7, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_9)	/* cross page boundary */
-
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$9, %xmm3
-	pslldq	$7, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3		/* store for next cycle */
-	jmp	LABEL(loop_ashr_9)
-
-	.p2align 4
-LABEL(nibble_ashr_9):
-	pcmpeqb	%xmm3, %xmm0		/* check nibble for null char */
-	pmovmskb %xmm0, %edx
-	test	$0xfe00, %edx
-	jnz	LABEL(ashr_9_exittail)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	cmp	$7, %r11
-	jbe	LABEL(ashr_9_exittail)
-#endif
-
-	pxor	%xmm0, %xmm0
-	sub	$0x1000, %r10
-	jmp	LABEL(gobble_ashr_9)
-
-	.p2align 4
-LABEL(ashr_9_exittail):
-	movdqa	(%rsi, %rcx), %xmm1
-	psrldq	$9, %xmm0
-	psrldq	$9, %xmm3
-	jmp	LABEL(aftertail)
-
-/*
- *  The following cases will be handled by ashr_10
- *  rcx(offset of rsi)  rax(offset of rdi)        relative offset	 corresponding case
- *        n(6~15)          n - 6                9(15 +(n - 6) - n)         ashr_10
- */
-	.p2align 4
-LABEL(ashr_10):
-	pxor	%xmm0, %xmm0
-	movdqa	(%rdi), %xmm2
-	movdqa	(%rsi), %xmm1
-	pcmpeqb	%xmm1, %xmm0
-	pslldq	$6, %xmm2
-	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, %xmm2
-	psubb	%xmm0, %xmm2
-	pmovmskb %xmm2, %r9d
-	shr	%cl, %edx
-	shr	%cl, %r9d
-	sub	%r9d, %edx
-	jnz	LABEL(less32bytes)
-	movdqa	(%rdi), %xmm3
-
-	UPDATE_STRNCMP_COUNTER
-
-	pxor	%xmm0, %xmm0
-	mov	$16, %rcx	/* index for loads */
-	mov	$10, %r9d	/* byte position left over from less32bytes case */
-	/*
-	 * Setup %r10 value allows us to detect crossing a page boundary.
-	 * When %r10 goes positive we have crossed a page boundary and
-	 * need to do a nibble.
-	 */
-	lea	10(%rdi), %r10
-	and	$0xfff, %r10	/* offset into 4K page */
-	sub	$0x1000, %r10	/* subtract 4K pagesize */
-
-	.p2align 4
-LABEL(loop_ashr_10):
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_10)
-
-LABEL(gobble_ashr_10):
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$10, %xmm3
-	pslldq	$6, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_10)	/* cross page boundary */
-
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$10, %xmm3
-	pslldq	$6, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-	jmp	LABEL(loop_ashr_10)
-
-	.p2align 4
-LABEL(nibble_ashr_10):
-	pcmpeqb	%xmm3, %xmm0		/* check nibble for null char */
-	pmovmskb %xmm0, %edx
-	test	$0xfc00, %edx
-	jnz	LABEL(ashr_10_exittail)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	cmp	$6, %r11
-	jbe	LABEL(ashr_10_exittail)
-#endif
-
-	pxor	%xmm0, %xmm0
-	sub	$0x1000, %r10
-	jmp	LABEL(gobble_ashr_10)
-
-	.p2align 4
-LABEL(ashr_10_exittail):
-	movdqa	(%rsi, %rcx), %xmm1
-	psrldq	$10, %xmm0
-	psrldq	$10, %xmm3
-	jmp	LABEL(aftertail)
-
-/*
- *  The following cases will be handled by ashr_11
- *  rcx(offset of rsi)  rax(offset of rdi)        relative offset	 corresponding case
- *        n(5~15)          n - 5               10(15 +(n - 5) - n)         ashr_11
- */
-	.p2align 4
-LABEL(ashr_11):
-	pxor	%xmm0, %xmm0
-	movdqa	(%rdi), %xmm2
-	movdqa	(%rsi), %xmm1
-	pcmpeqb	%xmm1, %xmm0
-	pslldq	$5, %xmm2
-	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, %xmm2
-	psubb	%xmm0, %xmm2
-	pmovmskb %xmm2, %r9d
-	shr	%cl, %edx
-	shr	%cl, %r9d
-	sub	%r9d, %edx
-	jnz	LABEL(less32bytes)
-	movdqa	(%rdi), %xmm3
-
-	UPDATE_STRNCMP_COUNTER
-
-	pxor	%xmm0, %xmm0
-	mov	$16, %rcx	/* index for loads */
-	mov	$11, %r9d	/* byte position left over from less32bytes case */
-	/*
-	 * Setup %r10 value allows us to detect crossing a page boundary.
-	 * When %r10 goes positive we have crossed a page boundary and
-	 * need to do a nibble.
-	 */
-	lea	11(%rdi), %r10
-	and	$0xfff, %r10	/* offset into 4K page */
-	sub	$0x1000, %r10	/* subtract 4K pagesize */
-
-	.p2align 4
-LABEL(loop_ashr_11):
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_11)
-
-LABEL(gobble_ashr_11):
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$11, %xmm3
-	pslldq	$5, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_11)	/* cross page boundary */
-
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$11, %xmm3
-	pslldq	$5, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-	jmp	LABEL(loop_ashr_11)
-
-	.p2align 4
-LABEL(nibble_ashr_11):
-	pcmpeqb	%xmm3, %xmm0		/* check nibble for null char */
-	pmovmskb %xmm0, %edx
-	test	$0xf800, %edx
-	jnz	LABEL(ashr_11_exittail)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	cmp	$5, %r11
-	jbe	LABEL(ashr_11_exittail)
-#endif
-
-	pxor	%xmm0, %xmm0
-	sub	$0x1000, %r10
-	jmp	LABEL(gobble_ashr_11)
-
-	.p2align 4
-LABEL(ashr_11_exittail):
-	movdqa	(%rsi, %rcx), %xmm1
-	psrldq	$11, %xmm0
-	psrldq	$11, %xmm3
-	jmp	LABEL(aftertail)
-
-/*
- *  The following cases will be handled by ashr_12
- *  rcx(offset of rsi)  rax(offset of rdi)        relative offset	 corresponding case
- *        n(4~15)          n - 4                11(15 +(n - 4) - n)         ashr_12
- */
-	.p2align 4
-LABEL(ashr_12):
-	pxor	%xmm0, %xmm0
-	movdqa	(%rdi), %xmm2
-	movdqa	(%rsi), %xmm1
-	pcmpeqb	%xmm1, %xmm0
-	pslldq	$4, %xmm2
-	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, %xmm2
-	psubb	%xmm0, %xmm2
-	pmovmskb %xmm2, %r9d
-	shr	%cl, %edx
-	shr	%cl, %r9d
-	sub	%r9d, %edx
-	jnz	LABEL(less32bytes)
-	movdqa	(%rdi), %xmm3
-
-	UPDATE_STRNCMP_COUNTER
-
-	pxor	%xmm0, %xmm0
-	mov	$16, %rcx	/* index for loads */
-	mov	$12, %r9d	/* byte position left over from less32bytes case */
-	/*
-	 * Setup %r10 value allows us to detect crossing a page boundary.
-	 * When %r10 goes positive we have crossed a page boundary and
-	 * need to do a nibble.
-	 */
-	lea	12(%rdi), %r10
-	and	$0xfff, %r10	/* offset into 4K page */
-	sub	$0x1000, %r10	/* subtract 4K pagesize */
-
-	.p2align 4
-LABEL(loop_ashr_12):
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_12)
-
-LABEL(gobble_ashr_12):
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$12, %xmm3
-	pslldq	$4, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_12)	/* cross page boundary */
-
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$12, %xmm3
-	pslldq	$4, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-	jmp	LABEL(loop_ashr_12)
-
-	.p2align 4
-LABEL(nibble_ashr_12):
-	pcmpeqb	%xmm3, %xmm0		/* check nibble for null char */
-	pmovmskb %xmm0, %edx
-	test	$0xf000, %edx
-	jnz	LABEL(ashr_12_exittail)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	cmp	$4, %r11
-	jbe	LABEL(ashr_12_exittail)
-#endif
-
-	pxor	%xmm0, %xmm0
-	sub	$0x1000, %r10
-	jmp	LABEL(gobble_ashr_12)
-
-	.p2align 4
-LABEL(ashr_12_exittail):
-	movdqa	(%rsi, %rcx), %xmm1
-	psrldq	$12, %xmm0
-	psrldq	$12, %xmm3
-	jmp	LABEL(aftertail)
-
-/*
- *  The following cases will be handled by ashr_13
- *  rcx(offset of rsi)  rax(offset of rdi)        relative offset	 corresponding case
- *        n(3~15)          n - 3                12(15 +(n - 3) - n)         ashr_13
- */
-	.p2align 4
-LABEL(ashr_13):
-	pxor	%xmm0, %xmm0
-	movdqa	(%rdi), %xmm2
-	movdqa	(%rsi), %xmm1
-	pcmpeqb	%xmm1, %xmm0
-	pslldq	$3, %xmm2
-	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, %xmm2
-	psubb	%xmm0, %xmm2
-	pmovmskb %xmm2, %r9d
-	shr	%cl, %edx
-	shr	%cl, %r9d
-	sub	%r9d, %edx
-	jnz	LABEL(less32bytes)
-	movdqa	(%rdi), %xmm3
-
-	UPDATE_STRNCMP_COUNTER
-
-	pxor	%xmm0, %xmm0
-	mov	$16, %rcx	/* index for loads */
-	mov	$13, %r9d	/* byte position left over from less32bytes case */
-	/*
-	 * Setup %r10 value allows us to detect crossing a page boundary.
-	 * When %r10 goes positive we have crossed a page boundary and
-	 * need to do a nibble.
-	 */
-	lea	13(%rdi), %r10
-	and	$0xfff, %r10	/* offset into 4K page */
-	sub	$0x1000, %r10	/* subtract 4K pagesize */
-
-	.p2align 4
-LABEL(loop_ashr_13):
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_13)
-
-LABEL(gobble_ashr_13):
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$13, %xmm3
-	pslldq	$3, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_13)	/* cross page boundary */
-
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$13, %xmm3
-	pslldq	$3, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-	jmp	LABEL(loop_ashr_13)
-
-	.p2align 4
-LABEL(nibble_ashr_13):
-	pcmpeqb	%xmm3, %xmm0		/* check nibble for null char */
-	pmovmskb %xmm0, %edx
-	test	$0xe000, %edx
-	jnz	LABEL(ashr_13_exittail)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	cmp	$3, %r11
-	jbe	LABEL(ashr_13_exittail)
-#endif
-
-	pxor	%xmm0, %xmm0
-	sub	$0x1000, %r10
-	jmp	LABEL(gobble_ashr_13)
-
-	.p2align 4
-LABEL(ashr_13_exittail):
-	movdqa	(%rsi, %rcx), %xmm1
-	psrldq  $13, %xmm0
-	psrldq  $13, %xmm3
-	jmp	LABEL(aftertail)
-
-/*
- *  The following cases will be handled by ashr_14
- *  rcx(offset of rsi)  rax(offset of rdi)        relative offset	 corresponding case
- *        n(2~15)          n - 2                13(15 +(n - 2) - n)         ashr_14
- */
-	.p2align 4
-LABEL(ashr_14):
-	pxor	%xmm0, %xmm0
-	movdqa	(%rdi), %xmm2
-	movdqa	(%rsi), %xmm1
-	pcmpeqb	%xmm1, %xmm0
-	pslldq  $2, %xmm2
-	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, %xmm2
-	psubb	%xmm0, %xmm2
-	pmovmskb %xmm2, %r9d
-	shr	%cl, %edx
-	shr	%cl, %r9d
-	sub	%r9d, %edx
-	jnz	LABEL(less32bytes)
-	movdqa	(%rdi), %xmm3
-
-	UPDATE_STRNCMP_COUNTER
-
-	pxor	%xmm0, %xmm0
-	mov	$16, %rcx	/* index for loads */
-	mov	$14, %r9d	/* byte position left over from less32bytes case */
-	/*
-	 * Setup %r10 value allows us to detect crossing a page boundary.
-	 * When %r10 goes positive we have crossed a page boundary and
-	 * need to do a nibble.
-	 */
-	lea	14(%rdi), %r10
-	and	$0xfff, %r10	/* offset into 4K page */
-	sub	$0x1000, %r10	/* subtract 4K pagesize */
-
-	.p2align 4
-LABEL(loop_ashr_14):
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_14)
-
-LABEL(gobble_ashr_14):
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$14, %xmm3
-	pslldq	$2, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_14)	/* cross page boundary */
-
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$14, %xmm3
-	pslldq	$2, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP | defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-	jmp	LABEL(loop_ashr_14)
-
-	.p2align 4
-LABEL(nibble_ashr_14):
-	pcmpeqb	%xmm3, %xmm0		/* check nibble for null char */
-	pmovmskb %xmm0, %edx
-	test	$0xc000, %edx
-	jnz	LABEL(ashr_14_exittail)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	cmp	$2, %r11
-	jbe	LABEL(ashr_14_exittail)
-#endif
-
-	pxor	%xmm0, %xmm0
-	sub	$0x1000, %r10
-	jmp	LABEL(gobble_ashr_14)
-
-	.p2align 4
-LABEL(ashr_14_exittail):
-	movdqa	(%rsi, %rcx), %xmm1
-	psrldq	$14, %xmm0
-	psrldq	$14, %xmm3
-	jmp	LABEL(aftertail)
-
-/*
- *  The following cases will be handled by ashr_15
- *  rcx(offset of rsi)  rax(offset of rdi)        relative offset	 corresponding case
- *        n(1~15)          n - 1                14(15 +(n - 1) - n)         ashr_15
- */
-	.p2align 4
-LABEL(ashr_15):
-	pxor	%xmm0, %xmm0
-	movdqa	(%rdi), %xmm2
-	movdqa	(%rsi), %xmm1
-	pcmpeqb	%xmm1, %xmm0
-	pslldq	$1, %xmm2
-	TOLOWER (%xmm1, %xmm2)
-	pcmpeqb	%xmm1, %xmm2
-	psubb	%xmm0, %xmm2
-	pmovmskb %xmm2, %r9d
-	shr	%cl, %edx
-	shr	%cl, %r9d
-	sub	%r9d, %edx
-	jnz	LABEL(less32bytes)
-
-	movdqa	(%rdi), %xmm3
-
-	UPDATE_STRNCMP_COUNTER
-
-	pxor	%xmm0, %xmm0
-	mov	$16, %rcx	/* index for loads */
-	mov	$15, %r9d	/* byte position left over from less32bytes case */
-	/*
-	 * Setup %r10 value allows us to detect crossing a page boundary.
-	 * When %r10 goes positive we have crossed a page boundary and
-	 * need to do a nibble.
-	 */
-	lea	15(%rdi), %r10
-	and	$0xfff, %r10	/* offset into 4K page */
-
-	sub	$0x1000, %r10	/* subtract 4K pagesize */
-
-	.p2align 4
-LABEL(loop_ashr_15):
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_15)
-
-LABEL(gobble_ashr_15):
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$15, %xmm3
-	pslldq	$1, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-
-	add	$16, %r10
-	jg	LABEL(nibble_ashr_15)	/* cross page boundary */
-
-	movdqa	(%rsi, %rcx), %xmm1
-	movdqa	(%rdi, %rcx), %xmm2
-	movdqa	%xmm2, %xmm4
-
-	psrldq	$15, %xmm3
-	pslldq	$1, %xmm2
-	por	%xmm3, %xmm2		/* merge into one 16byte value */
-
-	TOLOWER (%xmm1, %xmm2)
-
-	pcmpeqb	%xmm1, %xmm0
-	pcmpeqb	%xmm2, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	sub	$0xffff, %edx
-	jnz	LABEL(exit)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	$16, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-
-	add	$16, %rcx
-	movdqa	%xmm4, %xmm3
-	jmp	LABEL(loop_ashr_15)
-
-	.p2align 4
-LABEL(nibble_ashr_15):
-	pcmpeqb	%xmm3, %xmm0		/* check nibble for null char */
-	pmovmskb %xmm0, %edx
-	test	$0x8000, %edx
-	jnz	LABEL(ashr_15_exittail)
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	cmpq	$1, %r11
-	jbe	LABEL(ashr_15_exittail)
-#endif
-
-	pxor	%xmm0, %xmm0
-	sub	$0x1000, %r10
-	jmp	LABEL(gobble_ashr_15)
-
-	.p2align 4
-LABEL(ashr_15_exittail):
-	movdqa	(%rsi, %rcx), %xmm1
-	psrldq	$15, %xmm3
-	psrldq	$15, %xmm0
-
-	.p2align 4
-LABEL(aftertail):
-	TOLOWER (%xmm1, %xmm3)
-	pcmpeqb	%xmm3, %xmm1
-	psubb	%xmm0, %xmm1
-	pmovmskb %xmm1, %edx
-	not	%edx
-
-	.p2align 4
-LABEL(exit):
-	lea	-16(%r9, %rcx), %rax	/* locate the exact offset for rdi */
-LABEL(less32bytes):
-	lea	(%rdi, %rax), %rdi	/* locate the exact address for first operand(rdi) */
-	lea	(%rsi, %rcx), %rsi	/* locate the exact address for second operand(rsi) */
-	test	%r8d, %r8d
-	jz	LABEL(ret)
-	xchg	%rsi, %rdi		/* recover original order according to flag(%r8d) */
-
-	.p2align 4
-LABEL(ret):
-LABEL(less16bytes):
-	bsf	%rdx, %rdx		/* find and store bit index in %rdx */
-
-#if defined USE_AS_STRNCMP || defined USE_AS_STRNCASECMP_L
-	sub	%rdx, %r11
-	jbe	LABEL(strcmp_exitz)
-#endif
-	movzbl	(%rsi, %rdx), %ecx
-	movzbl	(%rdi, %rdx), %eax
-
-#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
-	leaq	_nl_C_LC_CTYPE_tolower+128*4(%rip), %rdx
-	movl	(%rdx,%rcx,4), %ecx
-	movl	(%rdx,%rax,4), %eax
-#endif
-
-	sub	%ecx, %eax
-	ret
-
-LABEL(strcmp_exitz):
-	xor	%eax, %eax
-	ret
-
-	.p2align 4
-LABEL(Byte0):
-	movzbl	(%rsi), %ecx
-	movzbl	(%rdi), %eax
-
-#if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L
-	leaq	_nl_C_LC_CTYPE_tolower+128*4(%rip), %rdx
-	movl	(%rdx,%rcx,4), %ecx
-	movl	(%rdx,%rax,4), %eax
-#endif
-
-	sub	%ecx, %eax
-	ret
-END (STRCMP)
-
-	.section .rodata,"a",@progbits
-	.p2align 3
-LABEL(unaligned_table):
-	.int	LABEL(ashr_1) - LABEL(unaligned_table)
-	.int	LABEL(ashr_2) - LABEL(unaligned_table)
-	.int	LABEL(ashr_3) - LABEL(unaligned_table)
-	.int	LABEL(ashr_4) - LABEL(unaligned_table)
-	.int	LABEL(ashr_5) - LABEL(unaligned_table)
-	.int	LABEL(ashr_6) - LABEL(unaligned_table)
-	.int	LABEL(ashr_7) - LABEL(unaligned_table)
-	.int	LABEL(ashr_8) - LABEL(unaligned_table)
-	.int	LABEL(ashr_9) - LABEL(unaligned_table)
-	.int	LABEL(ashr_10) - LABEL(unaligned_table)
-	.int	LABEL(ashr_11) - LABEL(unaligned_table)
-	.int	LABEL(ashr_12) - LABEL(unaligned_table)
-	.int	LABEL(ashr_13) - LABEL(unaligned_table)
-	.int	LABEL(ashr_14) - LABEL(unaligned_table)
-	.int	LABEL(ashr_15) - LABEL(unaligned_table)
-	.int	LABEL(ashr_0) - LABEL(unaligned_table)
-libc_hidden_builtin_def (STRCMP)
+#include "multiarch/strcmp-sse2.S"
+libc_hidden_builtin_def (strcmp)