diff --git a/sysdeps/x86_64/memcmp.S b/sysdeps/x86_64/memcmp.S
index f636716..8cbac9c 100644
--- a/sysdeps/x86_64/memcmp.S
+++ b/sysdeps/x86_64/memcmp.S
@@ -19,340 +19,201 @@
 
 #include <sysdep.h>
 
-	.text
-ENTRY (memcmp)
-	test	%rdx, %rdx
-	jz	L(finz)
-	cmpq	$1, %rdx
-	jle	L(finr1b)
-	subq	%rdi, %rsi
-	movq	%rdx, %r10
-	cmpq	$32, %r10
-	jge	L(gt32)
-	/* Handle small chunks and last block of less than 32 bytes.  */
-L(small):
-	testq	$1, %r10
-	jz	L(s2b)
-	movzbl	(%rdi),	%eax
-	movzbl	(%rdi, %rsi), %edx
-	subq    $1, %r10
-	je	L(finz1)
-	addq	$1, %rdi
-	subl	%edx, %eax
-	jnz	L(exit)
-L(s2b):
-	testq	$2, %r10
-	jz	L(s4b)
-	movzwl	(%rdi),	%eax
-	movzwl	(%rdi, %rsi), %edx
-	subq    $2, %r10
-	je	L(fin2_7)
-	addq	$2, %rdi
-	cmpl	%edx, %eax
-	jnz	L(fin2_7)
-L(s4b):
-	testq	$4, %r10
-	jz	L(s8b)
-	movl	(%rdi),	%eax
-	movl	(%rdi, %rsi), %edx
-	subq    $4, %r10
-	je	L(fin2_7)
-	addq	$4, %rdi
-	cmpl	%edx, %eax
-	jnz	L(fin2_7)
-L(s8b):
-	testq	$8, %r10
-	jz	L(s16b)
-	movq	(%rdi),	%rax
-	movq	(%rdi, %rsi), %rdx
-	subq    $8, %r10
-	je	L(fin2_7)
-	addq	$8, %rdi
-	cmpq	%rdx, %rax
-	jnz	L(fin2_7)
-L(s16b):
-	movdqu    (%rdi), %xmm1
-	movdqu    (%rdi, %rsi), %xmm0
-	pcmpeqb   %xmm0, %xmm1
-	pmovmskb  %xmm1, %edx
-	xorl	  %eax, %eax
-	subl      $0xffff, %edx
-	jz	  L(finz)
-	bsfl      %edx, %ecx
-	leaq	 (%rdi, %rcx), %rcx
-	movzbl	 (%rcx), %eax
-	movzbl	 (%rsi, %rcx), %edx
-	jmp	 L(finz1)
+#ifndef MEMCMP
+# define MEMCMP memcmp
+#endif
 
-	.p2align 4,, 4
-L(finr1b):
-	movzbl	(%rdi), %eax
-	movzbl  (%rsi), %edx
-L(finz1):
-	subl	%edx, %eax
-L(exit):
+	.text
+ENTRY (MEMCMP)
+	testq	%rdx, %rdx
+	je	L(return_zero)
+	pxor	%xmm4, %xmm4
+	movl	%edi, %eax
+	andl	$4095, %eax
+	cmpl	$4032, %eax
+	jg	L(cross_page)
+L(handle_end):
+	movl	%esi, %eax
+	andl	$4095, %eax
+	cmpl	$4032, %eax
+	jg	L(cross_page)
+	movdqu	(%rdi), %xmm0
+	lea	-1(%edx), %ecx
+	movl	$2, %eax
+	movdqu	(%rsi), %xmm1
+	salq	%cl, %rax
+	leaq	-1(%rax), %rcx
+	pcmpeqb	%xmm1, %xmm0
+	pcmpeqb	%xmm4, %xmm0
+	pmovmskb %xmm0, %eax
+	and	%ecx, %eax
+	jne	L(different)
+	cmpq	$16, %rdx
+	jbe	L(return_zero)
+	pmovmskb %xmm0, %r8d
+	movdqu	16(%rdi), %xmm2
+	movdqu	16(%rsi), %xmm6
+	movdqu	32(%rdi), %xmm1
+	pcmpeqb	%xmm6, %xmm2
+	movdqu	32(%rsi), %xmm5
+	pcmpeqb	%xmm4, %xmm2
+	pcmpeqb	%xmm5, %xmm1
+	movdqu	48(%rdi), %xmm7
+	pmovmskb %xmm2, %eax
+	movdqu	48(%rsi), %xmm3
+	pcmpeqb	%xmm4, %xmm1
+	pmovmskb %xmm1, %r9d
+	sal	$16, %eax
+	pcmpeqb	%xmm3, %xmm7
+	salq	$32, %r9
+	pcmpeqb	%xmm4, %xmm7
+	orq	%r9, %rax
+	orq	%r8, %rax
+	pmovmskb %xmm7, %r8d
+	salq	$48, %r8
+	orq	%r8, %rax
+	movq	%rax, %r8
+	andq	%rcx, %rax
+	jne	L(different)
+	cmpq	$64, %rdx
+	jbe	L(return_zero)
+	movq	%r8, %rax
+	testq	%rax, %rax
+	jne	L(different)
+L(align_loop):
+#ifdef USE_AVX2
+	vpxor	%xmm4, %xmm4, %xmm4
+#endif
+	leaq	64(%rdi), %rax
+	andq	$-64, %rax
+	subq	%rdi, %rax
+	subq	%rax, %rdx
+	addq	%rax, %rdi
+	addq	%rax, %rsi
+	cmpq	$64, %rdx
+	ja	L(loop_start)
+	testq	%rdx, %rdx
+	jne	L(handle_end)
+	xorl	%eax, %eax
 	ret
 
-	.p2align 4,, 4
-L(fin2_7):
-	cmpq	%rdx, %rax
-	jz	L(finz)
-	movq	%rax, %r11
-	subq	%rdx, %r11
-	bsfq	%r11, %rcx
-	sarq	$3, %rcx
-	salq	$3, %rcx
-	sarq	%cl, %rax
-	movzbl  %al, %eax
-	sarq	%cl, %rdx
-	movzbl  %dl, %edx
+	.p2align 4
+L(different):
+	bsfq	%rax, %rdx
+	movzbl	(%rdi,%rdx), %eax
+	movzbl	(%rsi,%rdx), %edx
 	subl	%edx, %eax
 	ret
 
-	.p2align 4,, 4
-L(finz):
+#ifdef USE_AVX2
+L(loop):
+	subq	$64, %rdx
+	addq	$64, %rdi
+	addq	$64, %rsi
+	cmpq	$64, %rdx
+	jbe	L(less_64_bytes)
+L(loop_start):
+	vmovdqu	(%rsi), %ymm0
+	vpcmpeqb (%rdi), %ymm0, %ymm0
+ 	vmovdqu	32(%rsi), %ymm1
+	vpcmpeqb 32(%rdi), %ymm1, %ymm1
+	vpminub  %ymm0, %ymm1, %ymm1
+	vpcmpeqb %ymm1, %ymm4, %ymm1
+	vpmovmskb %ymm1, %eax
+	testl	%eax, %eax
+	je	L(loop)
+	shl	$32, %rax
+	vpcmpeqb %ymm4, %ymm0, %ymm0
+	vpmovmskb %ymm0, %ecx
+	or	%rcx, %rax
+	vzeroupper
+	jmp	L(different)
+
+L(less_64_bytes):
+	vzeroupper
+	testq	%rdx, %rdx
+	jne	L(handle_end)
 	xorl	%eax, %eax
 	ret
+#else
+	.p2align 4
+L(loop):
+	subq	$64, %rdx
+	addq	$64, %rdi
+	addq	$64, %rsi
+	cmpq	$64, %rdx
+	jbe	L(less_64_bytes)
+L(loop_start):
+	movdqu	(%rsi), %xmm0
+	movdqu	16(%rsi), %xmm1
+	pcmpeqb	(%rdi), %xmm0
+	movdqu	32(%rsi), %xmm2
+	pcmpeqb	16(%rdi), %xmm1
+	movdqu	48(%rsi), %xmm3
+	pcmpeqb	32(%rdi), %xmm2
+	pcmpeqb	48(%rdi), %xmm3
+	pminub	%xmm0, %xmm3
+	pminub	%xmm1, %xmm3
+	pminub	%xmm2, %xmm3
+	pcmpeqb	%xmm4, %xmm3
+	pmovmskb %xmm3, %eax
+	testl	%eax, %eax
+	je	L(loop)
+	shl	$48, %rax
+	pcmpeqb	%xmm4, %xmm0
+	pcmpeqb	%xmm4, %xmm1
+	pcmpeqb	%xmm4, %xmm2
+	pmovmskb %xmm0, %r8
+	pmovmskb %xmm1, %rcx
+	pmovmskb %xmm2, %r9
+	shl	$16, %ecx
+	shl	$32, %r9
+	or	%r8, %rax
+	or	%r9, %rax
+	or	%rcx, %rax
+	jmp	L(different)
+
+	.p2align 4
+L(less_64_bytes):
+	testq	%rdx, %rdx
+	jne	L(handle_end)
+	xorl	%eax, %eax
+	ret
+#endif
 
-	/* For blocks bigger than 32 bytes
-	   1. Advance one of the addr pointer to be 16B aligned.
-	   2. Treat the case of both addr pointers aligned to 16B
-	      separately to avoid movdqu.
-	   3. Handle any blocks of greater than 64 consecutive bytes with
-	      unrolling to reduce branches.
-	   4. At least one addr pointer is 16B aligned, use memory version
-	      of pcmbeqb.
-	*/
-	.p2align 4,, 4
-L(gt32):
-	movq	%rdx, %r11
-	addq	%rdi, %r11
-	movq	%rdi, %r8
-
-	andq	$15, %r8
-	jz	L(16am)
-	/* Both pointers may be misaligned.  */
-	movdqu	(%rdi),	%xmm1
-	movdqu	(%rdi, %rsi), %xmm0
-	pcmpeqb   %xmm0, %xmm1
-	pmovmskb  %xmm1, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	neg	 %r8
-	leaq    16(%rdi, %r8), %rdi
-L(16am):
-	/* Handle two 16B aligned pointers separately.  */
-	testq   $15, %rsi
-	jz      L(ATR)
-	testq	$16, %rdi
-	jz	L(A32)
-	movdqu	(%rdi, %rsi), %xmm0
-	pcmpeqb   (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq	$16, %rdi
-L(A32):
-	movq	%r11, %r10
-	andq	$-32, %r10
-	cmpq	%r10, %rdi
-        jge	L(mt16)
-	/* Pre-unroll to be ready for unrolled 64B loop.  */
-	testq	$32, %rdi
-	jz	L(A64)
-	movdqu    (%rdi,%rsi), %xmm0
-	pcmpeqb   (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-
-	movdqu    (%rdi,%rsi), %xmm0
-	pcmpeqb  (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-
-L(A64):
-	movq	%r11, %r10
-	andq	$-64, %r10
-	cmpq	%r10, %rdi
-        jge	L(mt32)
-
-L(A64main):
-	movdqu    (%rdi,%rsi), %xmm0
-	pcmpeqb   (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-
-	movdqu    (%rdi,%rsi), %xmm0
-	pcmpeqb   (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-
-	movdqu    (%rdi,%rsi), %xmm0
-	pcmpeqb   (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-
-	movdqu    (%rdi,%rsi), %xmm0
-	pcmpeqb  (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-
-	cmpq       %rdi, %r10
-	jne       L(A64main)
-
-L(mt32):
-	movq	%r11, %r10
-	andq	$-32, %r10
-	cmpq	%r10, %rdi
-        jge	L(mt16)
-
-L(A32main):
-	movdqu    (%rdi,%rsi), %xmm0
-	pcmpeqb   (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-
-	movdqu    (%rdi,%rsi), %xmm0
-	pcmpeqb  (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-
-	cmpq       %rdi, %r10
-	jne       L(A32main)
-L(mt16):
-	subq       %rdi, %r11
-	je	  L(finz)
-	movq	  %r11, %r10
-	jmp	  L(small)
-
-	.p2align 4,, 4
-L(neq):
-	bsfl      %edx, %ecx
-	movzbl	 (%rdi, %rcx), %eax
-	addq	 %rdi, %rsi
-	movzbl	 (%rsi,%rcx), %edx
-	jmp	 L(finz1)
-
-	.p2align 4,, 4
-L(ATR):
-	movq	%r11, %r10
-	andq	$-32, %r10
-	cmpq	%r10, %rdi
-        jge	L(mt16)
-	testq	$16, %rdi
-	jz	L(ATR32)
-
-	movdqa    (%rdi,%rsi), %xmm0
-	pcmpeqb   (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-	cmpq       %rdi, %r10
-	je       L(mt16)
-
-L(ATR32):
-	movq	%r11, %r10
-	andq	$-64, %r10
-	testq	$32, %rdi
-	jz	L(ATR64)
-
-	movdqa    (%rdi,%rsi), %xmm0
-	pcmpeqb   (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-
-	movdqa    (%rdi,%rsi), %xmm0
-	pcmpeqb   (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-
-L(ATR64):
-	cmpq       %rdi, %r10
-	je	   L(mt32)
-
-L(ATR64main):
-	movdqa    (%rdi,%rsi), %xmm0
-	pcmpeqb   (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-
-	movdqa    (%rdi,%rsi), %xmm0
-	pcmpeqb   (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-
-	movdqa    (%rdi,%rsi), %xmm0
-	pcmpeqb   (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-
-	movdqa    (%rdi,%rsi), %xmm0
-	pcmpeqb   (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-	cmpq       %rdi, %r10
-	jne       L(ATR64main)
-
-	movq	%r11, %r10
-	andq	$-32, %r10
-	cmpq	%r10, %rdi
-        jge	L(mt16)
-
-L(ATR32res):
-	movdqa    (%rdi,%rsi), %xmm0
-	pcmpeqb   (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-
-	movdqa    (%rdi,%rsi), %xmm0
-	pcmpeqb   (%rdi), %xmm0
-	pmovmskb  %xmm0, %edx
-	subl      $0xffff, %edx
-	jnz       L(neq)
-	addq       $16, %rdi
-
-	cmpq	  %r10, %rdi
-	jne       L(ATR32res)
-
-	subq       %rdi, %r11
-	je	  L(finz)
-	movq	  %r11, %r10
-	jmp	  L(small)
-	/* Align to 16byte to improve instruction fetch.  */
-	.p2align 4,, 4
-END(memcmp)
+	.p2align 4
+L(cross_page):
+	testq	%rdx, %rdx
+	je	L(return_zero)
+	movzbl	(%rdi), %eax
+	movzbl	(%rsi), %ecx
+	cmpb	%cl, %al
+	jne	L(cross_page_different)
+	movl	$1, %r8d
+	jmp	L(cross_page_loop_start)
+
+	.p2align 4
+L(cross_page_loop):
+	movzbl	(%rdi,%r8), %eax
+	movzbl	(%rsi,%r8), %ecx
+	cmpb	%cl, %al
+	jne	L(cross_page_different)
+	addq	$1, %r8
+	cmpq	$65, %r8
+	je	L(align_loop)
+L(cross_page_loop_start):
+	cmpq	%rdx, %r8
+	jne	L(cross_page_loop)
+L(return_zero):
+	xorl	%eax, %eax
+	ret
+L(cross_page_different):
+	subl	%ecx, %eax
+	ret
+END(MEMCMP)
 
-#undef bcmp
+#ifndef USE_AVX2
+#undef	bcmp
 weak_alias (memcmp, bcmp)
 libc_hidden_builtin_def (memcmp)
+#endif
diff --git a/sysdeps/x86_64/multiarch/Makefile b/sysdeps/x86_64/multiarch/Makefile
index c573744..038e912 100644
--- a/sysdeps/x86_64/multiarch/Makefile
+++ b/sysdeps/x86_64/multiarch/Makefile
@@ -8,7 +8,7 @@ ifeq ($(subdir),string)
 
 sysdep_routines += strncat-c stpncpy-c strncpy-c strcmp-ssse3 \
 		   strcmp-sse2-unaligned strncmp-ssse3 \
-		   memcmp-sse4 memcpy-ssse3 \
+		   memcpy-ssse3 \
 		   memcpy-sse2-unaligned mempcpy-ssse3 \
 		   memmove-ssse3 memcpy-ssse3-back mempcpy-ssse3-back \
 		   memmove-avx-unaligned memcpy-avx-unaligned mempcpy-avx-unaligned \
@@ -29,7 +29,7 @@ CFLAGS-strspn-c.c += -msse4
 endif
 
 ifeq (yes,$(config-cflags-avx2))
-sysdep_routines += memset-avx2 strcpy-avx2 stpcpy-avx2
+sysdep_routines += memset-avx2 strcpy-avx2 stpcpy-avx2 memcmp-avx2
 endif
 endif
 
diff --git a/sysdeps/x86_64/multiarch/ifunc-impl-list.c b/sysdeps/x86_64/multiarch/ifunc-impl-list.c
index d398e43..2bb46ba 100644
--- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c
@@ -39,10 +39,9 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
 
   /* Support sysdeps/x86_64/multiarch/memcmp.S.  */
   IFUNC_IMPL (i, name, memcmp,
-	      IFUNC_IMPL_ADD (array, i, memcmp, HAS_SSE4_1,
-			      __memcmp_sse4_1)
+	     // IFUNC_IMPL_ADD (array, i, memcmp, HAS_AVX2, __memcmp_avx2)
 	      IFUNC_IMPL_ADD (array, i, memcmp, HAS_SSSE3, __memcmp_ssse3)
-	      IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_sse2))
+	      IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_sse2_unaligned))
 
   /* Support sysdeps/x86_64/multiarch/memmove_chk.S.  */
   IFUNC_IMPL (i, name, __memmove_chk,
diff --git a/sysdeps/x86_64/multiarch/memcmp-avx2.S b/sysdeps/x86_64/multiarch/memcmp-avx2.S
new file mode 100644
index 0000000..60483bf
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/memcmp-avx2.S
@@ -0,0 +1,3 @@
+#define USE_AVX2
+#define MEMCMP __memcmp_avx2
+#include "../memcmp.S"
diff --git a/sysdeps/x86_64/multiarch/memcmp.S b/sysdeps/x86_64/multiarch/memcmp.S
index f8b4636..727b095 100644
--- a/sysdeps/x86_64/multiarch/memcmp.S
+++ b/sysdeps/x86_64/multiarch/memcmp.S
@@ -29,33 +29,33 @@ ENTRY(memcmp)
 	cmpl	$0, KIND_OFFSET+__cpu_features(%rip)
 	jne	1f
 	call	__init_cpu_features
-
-1:	testl	$bit_SSSE3, __cpu_features+CPUID_OFFSET+index_SSSE3(%rip)
+	testl	$bit_AVX_Fast_Unaligned_Load, __cpu_features+FEATURE_OFFSET+index_AVX_Fast_Unaligned_Load(%rip)
+	jnz	4f
+        testl   $bit_Fast_Unaligned_Load, __cpu_features+FEATURE_OFFSET+index_Fast_Unaligned_Load(%rip)
 	jnz	2f
-	leaq	__memcmp_sse2(%rip), %rax
-	ret
-
-2:	testl	$bit_SSE4_1, __cpu_features+CPUID_OFFSET+index_SSE4_1(%rip)
-	jz	3f
-	leaq	__memcmp_sse4_1(%rip), %rax
+1:	testl	$bit_SSSE3, __cpu_features+CPUID_OFFSET+index_SSSE3(%rip)
+	jnz	3f
+2:	leaq	__memcmp_sse2_unaligned(%rip), %rax
 	ret
 
 3:	leaq	__memcmp_ssse3(%rip), %rax
 	ret
 
+4:	leaq	__memcmp_avx2(%rip), %rax
+	ret
 END(memcmp)
 
 # undef ENTRY
 # define ENTRY(name) \
-	.type __memcmp_sse2, @function; \
+	.type __memcmp_sse2_unaligned, @function; \
 	.p2align 4; \
-	.globl __memcmp_sse2; \
-	.hidden __memcmp_sse2; \
-	__memcmp_sse2: cfi_startproc; \
+	.globl __memcmp_sse2_unaligned; \
+	.hidden __memcmp_sse2_unaligned; \
+	__memcmp_sse2_unaligned: cfi_startproc; \
 	CALL_MCOUNT
 # undef END
 # define END(name) \
-	cfi_endproc; .size __memcmp_sse2, .-__memcmp_sse2
+	cfi_endproc; .size __memcmp_sse2_unaligned, .-__memcmp_sse2_unaligned
 
 # ifdef SHARED
 #  undef libc_hidden_builtin_def
@@ -63,7 +63,7 @@ END(memcmp)
    they will be called without setting up EBX needed for PLT which is
    used by IFUNC.  */
 #  define libc_hidden_builtin_def(name) \
-	.globl __GI_memcmp; __GI_memcmp = __memcmp_sse2
+	.globl __GI_memcmp; __GI_memcmp = __memcmp_sse2_unaligned
 # endif
 #endif
 
diff --git a/sysdeps/x86_64/multiarch/wmemcmp-sse4.S b/sysdeps/x86_64/multiarch/wmemcmp-sse4.S
index b07973a..bcbb9b5 100644
--- a/sysdeps/x86_64/multiarch/wmemcmp-sse4.S
+++ b/sysdeps/x86_64/multiarch/wmemcmp-sse4.S
@@ -1,4 +1,1779 @@
+/* memcmp with SSE4.1, wmemcmp with SSE4.1
+   Copyright (C) 2010-2015 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/>.  */
+
 #define USE_AS_WMEMCMP 1
 #define MEMCMP __wmemcmp_sse4_1
 
-#include "memcmp-sse4.S"
+#if IS_IN (libc)
+
+# include <sysdep.h>
+
+# ifndef MEMCMP
+#  define MEMCMP	__memcmp_sse4_1
+# endif
+
+# define JMPTBL(I, B)	(I - B)
+
+# define BRANCH_TO_JMPTBL_ENTRY(TABLE, INDEX, SCALE)		\
+  lea		TABLE(%rip), %r11;				\
+  movslq	(%r11, INDEX, SCALE), %rcx;			\
+  add		%r11, %rcx;					\
+  jmp		*%rcx;						\
+  ud2
+
+/* Warning!
+           wmemcmp has to use SIGNED comparison for elements.
+           memcmp has to use UNSIGNED comparison for elemnts.
+*/
+
+	.section .text.sse4.1,"ax",@progbits
+ENTRY (MEMCMP)
+# ifdef USE_AS_WMEMCMP
+	shl	$2, %rdx
+# endif
+	pxor	%xmm0, %xmm0
+	cmp	$79, %rdx
+	ja	L(79bytesormore)
+# ifndef USE_AS_WMEMCMP
+	cmp	$1, %rdx
+	je	L(firstbyte)
+# endif
+	add	%rdx, %rsi
+	add	%rdx, %rdi
+	BRANCH_TO_JMPTBL_ENTRY(L(table_64bytes), %rdx, 4)
+
+# ifndef USE_AS_WMEMCMP
+	.p2align 4
+L(firstbyte):
+	movzbl	(%rdi), %eax
+	movzbl	(%rsi), %ecx
+	sub	%ecx, %eax
+	ret
+# endif
+
+	.p2align 4
+L(79bytesormore):
+	movdqu	(%rsi), %xmm1
+	movdqu	(%rdi), %xmm2
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(16bytesin256)
+	mov	%rsi, %rcx
+	and	$-16, %rsi
+	add	$16, %rsi
+	sub	%rsi, %rcx
+
+	sub	%rcx, %rdi
+	add	%rcx, %rdx
+	test	$0xf, %rdi
+	jz	L(2aligned)
+
+	cmp	$128, %rdx
+	ja	L(128bytesormore)
+L(less128bytes):
+	sub	$64, %rdx
+
+	movdqu	(%rdi), %xmm2
+	pxor	(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(16bytesin256)
+
+	movdqu	16(%rdi), %xmm2
+	pxor	16(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(32bytesin256)
+
+	movdqu	32(%rdi), %xmm2
+	pxor	32(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(48bytesin256)
+
+	movdqu	48(%rdi), %xmm2
+	pxor	48(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(64bytesin256)
+	cmp	$32, %rdx
+	jb	L(less32bytesin64)
+
+	movdqu	64(%rdi), %xmm2
+	pxor	64(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(80bytesin256)
+
+	movdqu	80(%rdi), %xmm2
+	pxor	80(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(96bytesin256)
+	sub	$32, %rdx
+	add	$32, %rdi
+	add	$32, %rsi
+L(less32bytesin64):
+	add	$64, %rdi
+	add	$64, %rsi
+	add	%rdx, %rsi
+	add	%rdx, %rdi
+	BRANCH_TO_JMPTBL_ENTRY(L(table_64bytes), %rdx, 4)
+
+L(128bytesormore):
+	cmp	$512, %rdx
+	ja	L(512bytesormore)
+	cmp	$256, %rdx
+	ja	L(less512bytes)
+L(less256bytes):
+	sub	$128, %rdx
+
+	movdqu	(%rdi), %xmm2
+	pxor	(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(16bytesin256)
+
+	movdqu	16(%rdi), %xmm2
+	pxor	16(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(32bytesin256)
+
+	movdqu	32(%rdi), %xmm2
+	pxor	32(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(48bytesin256)
+
+	movdqu	48(%rdi), %xmm2
+	pxor	48(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(64bytesin256)
+
+	movdqu	64(%rdi), %xmm2
+	pxor	64(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(80bytesin256)
+
+	movdqu	80(%rdi), %xmm2
+	pxor	80(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(96bytesin256)
+
+	movdqu	96(%rdi), %xmm2
+	pxor	96(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(112bytesin256)
+
+	movdqu	112(%rdi), %xmm2
+	pxor	112(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(128bytesin256)
+
+	add	$128, %rsi
+	add	$128, %rdi
+
+	cmp	$64, %rdx
+	jae	L(less128bytes)
+
+	cmp	$32, %rdx
+	jb	L(less32bytesin128)
+
+	movdqu	(%rdi), %xmm2
+	pxor	(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(16bytesin256)
+
+	movdqu	16(%rdi), %xmm2
+	pxor	16(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(32bytesin256)
+	sub	$32, %rdx
+	add	$32, %rdi
+	add	$32, %rsi
+L(less32bytesin128):
+	add	%rdx, %rsi
+	add	%rdx, %rdi
+	BRANCH_TO_JMPTBL_ENTRY(L(table_64bytes), %rdx, 4)
+
+L(less512bytes):
+	sub	$256, %rdx
+	movdqu	(%rdi), %xmm2
+	pxor	(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(16bytesin256)
+
+	movdqu	16(%rdi), %xmm2
+	pxor	16(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(32bytesin256)
+
+	movdqu	32(%rdi), %xmm2
+	pxor	32(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(48bytesin256)
+
+	movdqu	48(%rdi), %xmm2
+	pxor	48(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(64bytesin256)
+
+	movdqu	64(%rdi), %xmm2
+	pxor	64(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(80bytesin256)
+
+	movdqu	80(%rdi), %xmm2
+	pxor	80(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(96bytesin256)
+
+	movdqu	96(%rdi), %xmm2
+	pxor	96(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(112bytesin256)
+
+	movdqu	112(%rdi), %xmm2
+	pxor	112(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(128bytesin256)
+
+	movdqu	128(%rdi), %xmm2
+	pxor	128(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(144bytesin256)
+
+	movdqu	144(%rdi), %xmm2
+	pxor	144(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(160bytesin256)
+
+	movdqu	160(%rdi), %xmm2
+	pxor	160(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(176bytesin256)
+
+	movdqu	176(%rdi), %xmm2
+	pxor	176(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(192bytesin256)
+
+	movdqu	192(%rdi), %xmm2
+	pxor	192(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(208bytesin256)
+
+	movdqu	208(%rdi), %xmm2
+	pxor	208(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(224bytesin256)
+
+	movdqu	224(%rdi), %xmm2
+	pxor	224(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(240bytesin256)
+
+	movdqu	240(%rdi), %xmm2
+	pxor	240(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(256bytesin256)
+
+	add	$256, %rsi
+	add	$256, %rdi
+
+	cmp	$128, %rdx
+	jae	L(less256bytes)
+
+	cmp	$64, %rdx
+	jae	L(less128bytes)
+
+	cmp	$32, %rdx
+	jb	L(less32bytesin256)
+
+	movdqu	(%rdi), %xmm2
+	pxor	(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(16bytesin256)
+
+	movdqu	16(%rdi), %xmm2
+	pxor	16(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(32bytesin256)
+	sub	$32, %rdx
+	add	$32, %rdi
+	add	$32, %rsi
+L(less32bytesin256):
+	add	%rdx, %rsi
+	add	%rdx, %rdi
+	BRANCH_TO_JMPTBL_ENTRY(L(table_64bytes), %rdx, 4)
+
+	.p2align 4
+L(512bytesormore):
+# ifdef DATA_CACHE_SIZE_HALF
+	mov	$DATA_CACHE_SIZE_HALF, %R8_LP
+# else
+	mov	__x86_data_cache_size_half(%rip), %R8_LP
+# endif
+	mov	%r8, %r9
+	shr	$1, %r8
+	add	%r9, %r8
+	cmp	%r8, %rdx
+	ja	L(L2_L3_cache_unaglined)
+	sub	$64, %rdx
+	.p2align 4
+L(64bytesormore_loop):
+	movdqu	(%rdi), %xmm2
+	pxor	(%rsi), %xmm2
+	movdqa	%xmm2, %xmm1
+
+	movdqu	16(%rdi), %xmm3
+	pxor	16(%rsi), %xmm3
+	por	%xmm3, %xmm1
+
+	movdqu	32(%rdi), %xmm4
+	pxor	32(%rsi), %xmm4
+	por	%xmm4, %xmm1
+
+	movdqu	48(%rdi), %xmm5
+	pxor	48(%rsi), %xmm5
+	por	%xmm5, %xmm1
+
+	ptest	%xmm1, %xmm0
+	jnc	L(64bytesormore_loop_end)
+	add	$64, %rsi
+	add	$64, %rdi
+	sub	$64, %rdx
+	jae	L(64bytesormore_loop)
+
+	add	$64, %rdx
+	add	%rdx, %rsi
+	add	%rdx, %rdi
+	BRANCH_TO_JMPTBL_ENTRY(L(table_64bytes), %rdx, 4)
+
+L(L2_L3_cache_unaglined):
+	sub	$64, %rdx
+	.p2align 4
+L(L2_L3_unaligned_128bytes_loop):
+	prefetchnta 0x1c0(%rdi)
+	prefetchnta 0x1c0(%rsi)
+	movdqu	(%rdi), %xmm2
+	pxor	(%rsi), %xmm2
+	movdqa	%xmm2, %xmm1
+
+	movdqu	16(%rdi), %xmm3
+	pxor	16(%rsi), %xmm3
+	por	%xmm3, %xmm1
+
+	movdqu	32(%rdi), %xmm4
+	pxor	32(%rsi), %xmm4
+	por	%xmm4, %xmm1
+
+	movdqu	48(%rdi), %xmm5
+	pxor	48(%rsi), %xmm5
+	por	%xmm5, %xmm1
+
+	ptest	%xmm1, %xmm0
+	jnc	L(64bytesormore_loop_end)
+	add	$64, %rsi
+	add	$64, %rdi
+	sub	$64, %rdx
+	jae	L(L2_L3_unaligned_128bytes_loop)
+
+	add	$64, %rdx
+	add	%rdx, %rsi
+	add	%rdx, %rdi
+	BRANCH_TO_JMPTBL_ENTRY(L(table_64bytes), %rdx, 4)
+
+/*
+ * This case is for machines which are sensitive for unaligned instructions.
+ */
+	.p2align 4
+L(2aligned):
+	cmp	$128, %rdx
+	ja	L(128bytesormorein2aligned)
+L(less128bytesin2aligned):
+	sub	$64, %rdx
+
+	movdqa	(%rdi), %xmm2
+	pxor	(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(16bytesin256)
+
+	movdqa	16(%rdi), %xmm2
+	pxor	16(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(32bytesin256)
+
+	movdqa	32(%rdi), %xmm2
+	pxor	32(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(48bytesin256)
+
+	movdqa	48(%rdi), %xmm2
+	pxor	48(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(64bytesin256)
+	cmp	$32, %rdx
+	jb	L(less32bytesin64in2alinged)
+
+	movdqa	64(%rdi), %xmm2
+	pxor	64(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(80bytesin256)
+
+	movdqa	80(%rdi), %xmm2
+	pxor	80(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(96bytesin256)
+	sub	$32, %rdx
+	add	$32, %rdi
+	add	$32, %rsi
+L(less32bytesin64in2alinged):
+	add	$64, %rdi
+	add	$64, %rsi
+	add	%rdx, %rsi
+	add	%rdx, %rdi
+	BRANCH_TO_JMPTBL_ENTRY(L(table_64bytes), %rdx, 4)
+
+	.p2align 4
+L(128bytesormorein2aligned):
+	cmp	$512, %rdx
+	ja	L(512bytesormorein2aligned)
+	cmp	$256, %rdx
+	ja	L(256bytesormorein2aligned)
+L(less256bytesin2alinged):
+	sub	$128, %rdx
+
+	movdqa	(%rdi), %xmm2
+	pxor	(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(16bytesin256)
+
+	movdqa	16(%rdi), %xmm2
+	pxor	16(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(32bytesin256)
+
+	movdqa	32(%rdi), %xmm2
+	pxor	32(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(48bytesin256)
+
+	movdqa	48(%rdi), %xmm2
+	pxor	48(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(64bytesin256)
+
+	movdqa	64(%rdi), %xmm2
+	pxor	64(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(80bytesin256)
+
+	movdqa	80(%rdi), %xmm2
+	pxor	80(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(96bytesin256)
+
+	movdqa	96(%rdi), %xmm2
+	pxor	96(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(112bytesin256)
+
+	movdqa	112(%rdi), %xmm2
+	pxor	112(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(128bytesin256)
+
+	add	$128, %rsi
+	add	$128, %rdi
+
+	cmp	$64, %rdx
+	jae	L(less128bytesin2aligned)
+
+	cmp	$32, %rdx
+	jb	L(less32bytesin128in2aligned)
+
+	movdqu	(%rdi), %xmm2
+	pxor	(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(16bytesin256)
+
+	movdqu	16(%rdi), %xmm2
+	pxor	16(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(32bytesin256)
+	sub	$32, %rdx
+	add	$32, %rdi
+	add	$32, %rsi
+L(less32bytesin128in2aligned):
+	add	%rdx, %rsi
+	add	%rdx, %rdi
+	BRANCH_TO_JMPTBL_ENTRY(L(table_64bytes), %rdx, 4)
+
+	.p2align 4
+L(256bytesormorein2aligned):
+
+	sub	$256, %rdx
+	movdqa	(%rdi), %xmm2
+	pxor	(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(16bytesin256)
+
+	movdqa	16(%rdi), %xmm2
+	pxor	16(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(32bytesin256)
+
+	movdqa	32(%rdi), %xmm2
+	pxor	32(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(48bytesin256)
+
+	movdqa	48(%rdi), %xmm2
+	pxor	48(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(64bytesin256)
+
+	movdqa	64(%rdi), %xmm2
+	pxor	64(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(80bytesin256)
+
+	movdqa	80(%rdi), %xmm2
+	pxor	80(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(96bytesin256)
+
+	movdqa	96(%rdi), %xmm2
+	pxor	96(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(112bytesin256)
+
+	movdqa	112(%rdi), %xmm2
+	pxor	112(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(128bytesin256)
+
+	movdqa	128(%rdi), %xmm2
+	pxor	128(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(144bytesin256)
+
+	movdqa	144(%rdi), %xmm2
+	pxor	144(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(160bytesin256)
+
+	movdqa	160(%rdi), %xmm2
+	pxor	160(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(176bytesin256)
+
+	movdqa	176(%rdi), %xmm2
+	pxor	176(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(192bytesin256)
+
+	movdqa	192(%rdi), %xmm2
+	pxor	192(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(208bytesin256)
+
+	movdqa	208(%rdi), %xmm2
+	pxor	208(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(224bytesin256)
+
+	movdqa	224(%rdi), %xmm2
+	pxor	224(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(240bytesin256)
+
+	movdqa	240(%rdi), %xmm2
+	pxor	240(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(256bytesin256)
+
+	add	$256, %rsi
+	add	$256, %rdi
+
+	cmp	$128, %rdx
+	jae	L(less256bytesin2alinged)
+
+	cmp	$64, %rdx
+	jae	L(less128bytesin2aligned)
+
+	cmp	$32, %rdx
+	jb	L(less32bytesin256in2alinged)
+
+	movdqa	(%rdi), %xmm2
+	pxor	(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(16bytesin256)
+
+	movdqa	16(%rdi), %xmm2
+	pxor	16(%rsi), %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(32bytesin256)
+	sub	$32, %rdx
+	add	$32, %rdi
+	add	$32, %rsi
+L(less32bytesin256in2alinged):
+	add	%rdx, %rsi
+	add	%rdx, %rdi
+	BRANCH_TO_JMPTBL_ENTRY(L(table_64bytes), %rdx, 4)
+
+	.p2align 4
+L(512bytesormorein2aligned):
+# ifdef DATA_CACHE_SIZE_HALF
+	mov	$DATA_CACHE_SIZE_HALF, %R8_LP
+# else
+	mov	__x86_data_cache_size_half(%rip), %R8_LP
+# endif
+	mov	%r8, %r9
+	shr	$1, %r8
+	add	%r9, %r8
+	cmp	%r8, %rdx
+	ja	L(L2_L3_cache_aglined)
+
+	sub	$64, %rdx
+	.p2align 4
+L(64bytesormore_loopin2aligned):
+	movdqa	(%rdi), %xmm2
+	pxor	(%rsi), %xmm2
+	movdqa	%xmm2, %xmm1
+
+	movdqa	16(%rdi), %xmm3
+	pxor	16(%rsi), %xmm3
+	por	%xmm3, %xmm1
+
+	movdqa	32(%rdi), %xmm4
+	pxor	32(%rsi), %xmm4
+	por	%xmm4, %xmm1
+
+	movdqa	48(%rdi), %xmm5
+	pxor	48(%rsi), %xmm5
+	por	%xmm5, %xmm1
+
+	ptest	%xmm1, %xmm0
+	jnc	L(64bytesormore_loop_end)
+	add	$64, %rsi
+	add	$64, %rdi
+	sub	$64, %rdx
+	jae	L(64bytesormore_loopin2aligned)
+
+	add	$64, %rdx
+	add	%rdx, %rsi
+	add	%rdx, %rdi
+	BRANCH_TO_JMPTBL_ENTRY(L(table_64bytes), %rdx, 4)
+L(L2_L3_cache_aglined):
+	sub	$64, %rdx
+
+	.p2align 4
+L(L2_L3_aligned_128bytes_loop):
+	prefetchnta 0x1c0(%rdi)
+	prefetchnta 0x1c0(%rsi)
+	movdqa	(%rdi), %xmm2
+	pxor	(%rsi), %xmm2
+	movdqa	%xmm2, %xmm1
+
+	movdqa	16(%rdi), %xmm3
+	pxor	16(%rsi), %xmm3
+	por	%xmm3, %xmm1
+
+	movdqa	32(%rdi), %xmm4
+	pxor	32(%rsi), %xmm4
+	por	%xmm4, %xmm1
+
+	movdqa	48(%rdi), %xmm5
+	pxor	48(%rsi), %xmm5
+	por	%xmm5, %xmm1
+
+	ptest	%xmm1, %xmm0
+	jnc	L(64bytesormore_loop_end)
+	add	$64, %rsi
+	add	$64, %rdi
+	sub	$64, %rdx
+	jae	L(L2_L3_aligned_128bytes_loop)
+
+	add	$64, %rdx
+	add	%rdx, %rsi
+	add	%rdx, %rdi
+	BRANCH_TO_JMPTBL_ENTRY(L(table_64bytes), %rdx, 4)
+
+
+	.p2align 4
+L(64bytesormore_loop_end):
+	add	$16, %rdi
+	add	$16, %rsi
+	ptest	%xmm2, %xmm0
+	jnc	L(16bytes)
+
+	add	$16, %rdi
+	add	$16, %rsi
+	ptest	%xmm3, %xmm0
+	jnc	L(16bytes)
+
+	add	$16, %rdi
+	add	$16, %rsi
+	ptest	%xmm4, %xmm0
+	jnc	L(16bytes)
+
+	add	$16, %rdi
+	add	$16, %rsi
+	jmp	L(16bytes)
+
+L(256bytesin256):
+	add	$256, %rdi
+	add	$256, %rsi
+	jmp	L(16bytes)
+L(240bytesin256):
+	add	$240, %rdi
+	add	$240, %rsi
+	jmp	L(16bytes)
+L(224bytesin256):
+	add	$224, %rdi
+	add	$224, %rsi
+	jmp	L(16bytes)
+L(208bytesin256):
+	add	$208, %rdi
+	add	$208, %rsi
+	jmp	L(16bytes)
+L(192bytesin256):
+	add	$192, %rdi
+	add	$192, %rsi
+	jmp	L(16bytes)
+L(176bytesin256):
+	add	$176, %rdi
+	add	$176, %rsi
+	jmp	L(16bytes)
+L(160bytesin256):
+	add	$160, %rdi
+	add	$160, %rsi
+	jmp	L(16bytes)
+L(144bytesin256):
+	add	$144, %rdi
+	add	$144, %rsi
+	jmp	L(16bytes)
+L(128bytesin256):
+	add	$128, %rdi
+	add	$128, %rsi
+	jmp	L(16bytes)
+L(112bytesin256):
+	add	$112, %rdi
+	add	$112, %rsi
+	jmp	L(16bytes)
+L(96bytesin256):
+	add	$96, %rdi
+	add	$96, %rsi
+	jmp	L(16bytes)
+L(80bytesin256):
+	add	$80, %rdi
+	add	$80, %rsi
+	jmp	L(16bytes)
+L(64bytesin256):
+	add	$64, %rdi
+	add	$64, %rsi
+	jmp	L(16bytes)
+L(48bytesin256):
+	add	$16, %rdi
+	add	$16, %rsi
+L(32bytesin256):
+	add	$16, %rdi
+	add	$16, %rsi
+L(16bytesin256):
+	add	$16, %rdi
+	add	$16, %rsi
+L(16bytes):
+	mov	-16(%rdi), %rax
+	mov	-16(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+L(8bytes):
+	mov	-8(%rdi), %rax
+	mov	-8(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	xor	%eax, %eax
+	ret
+
+	.p2align 4
+L(12bytes):
+	mov	-12(%rdi), %rax
+	mov	-12(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+L(4bytes):
+	mov	-4(%rsi), %ecx
+# ifndef USE_AS_WMEMCMP
+	mov	-4(%rdi), %eax
+	cmp	%eax, %ecx
+# else
+	cmp	-4(%rdi), %ecx
+# endif
+	jne	L(diffin4bytes)
+L(0bytes):
+	xor	%eax, %eax
+	ret
+
+# ifndef USE_AS_WMEMCMP
+/* unreal case for wmemcmp */
+	.p2align 4
+L(65bytes):
+	movdqu	-65(%rdi), %xmm1
+	movdqu	-65(%rsi), %xmm2
+	mov	$-65, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(49bytes):
+	movdqu	-49(%rdi), %xmm1
+	movdqu	-49(%rsi), %xmm2
+	mov	$-49, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(33bytes):
+	movdqu	-33(%rdi), %xmm1
+	movdqu	-33(%rsi), %xmm2
+	mov	$-33, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(17bytes):
+	mov	-17(%rdi), %rax
+	mov	-17(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+L(9bytes):
+	mov	-9(%rdi), %rax
+	mov	-9(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	movzbl	-1(%rdi), %eax
+	movzbl	-1(%rsi), %edx
+	sub	%edx, %eax
+	ret
+
+	.p2align 4
+L(13bytes):
+	mov	-13(%rdi), %rax
+	mov	-13(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	mov	-8(%rdi), %rax
+	mov	-8(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	xor	%eax, %eax
+	ret
+
+	.p2align 4
+L(5bytes):
+	mov	-5(%rdi), %eax
+	mov	-5(%rsi), %ecx
+	cmp	%eax, %ecx
+	jne	L(diffin4bytes)
+	movzbl	-1(%rdi), %eax
+	movzbl	-1(%rsi), %edx
+	sub	%edx, %eax
+	ret
+
+	.p2align 4
+L(66bytes):
+	movdqu	-66(%rdi), %xmm1
+	movdqu	-66(%rsi), %xmm2
+	mov	$-66, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(50bytes):
+	movdqu	-50(%rdi), %xmm1
+	movdqu	-50(%rsi), %xmm2
+	mov	$-50, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(34bytes):
+	movdqu	-34(%rdi), %xmm1
+	movdqu	-34(%rsi), %xmm2
+	mov	$-34, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(18bytes):
+	mov	-18(%rdi), %rax
+	mov	-18(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+L(10bytes):
+	mov	-10(%rdi), %rax
+	mov	-10(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	movzwl	-2(%rdi), %eax
+	movzwl	-2(%rsi), %ecx
+	cmp	%cl, %al
+	jne	L(end)
+	and	$0xffff, %eax
+	and	$0xffff, %ecx
+	sub	%ecx, %eax
+	ret
+
+	.p2align 4
+L(14bytes):
+	mov	-14(%rdi), %rax
+	mov	-14(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	mov	-8(%rdi), %rax
+	mov	-8(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	xor	%eax, %eax
+	ret
+
+	.p2align 4
+L(6bytes):
+	mov	-6(%rdi), %eax
+	mov	-6(%rsi), %ecx
+	cmp	%eax, %ecx
+	jne	L(diffin4bytes)
+L(2bytes):
+	movzwl	-2(%rsi), %ecx
+	movzwl	-2(%rdi), %eax
+	cmp	%cl, %al
+	jne	L(end)
+	and	$0xffff, %eax
+	and	$0xffff, %ecx
+	sub	%ecx, %eax
+	ret
+
+	.p2align 4
+L(67bytes):
+	movdqu	-67(%rdi), %xmm2
+	movdqu	-67(%rsi), %xmm1
+	mov	$-67, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(51bytes):
+	movdqu	-51(%rdi), %xmm2
+	movdqu	-51(%rsi), %xmm1
+	mov	$-51, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(35bytes):
+	movdqu	-35(%rsi), %xmm1
+	movdqu	-35(%rdi), %xmm2
+	mov	$-35, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(19bytes):
+	mov	-19(%rdi), %rax
+	mov	-19(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+L(11bytes):
+	mov	-11(%rdi), %rax
+	mov	-11(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	mov	-4(%rdi), %eax
+	mov	-4(%rsi), %ecx
+	cmp	%eax, %ecx
+	jne	L(diffin4bytes)
+	xor	%eax, %eax
+	ret
+
+	.p2align 4
+L(15bytes):
+	mov	-15(%rdi), %rax
+	mov	-15(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	mov	-8(%rdi), %rax
+	mov	-8(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	xor	%eax, %eax
+	ret
+
+	.p2align 4
+L(7bytes):
+	mov	-7(%rdi), %eax
+	mov	-7(%rsi), %ecx
+	cmp	%eax, %ecx
+	jne	L(diffin4bytes)
+	mov	-4(%rdi), %eax
+	mov	-4(%rsi), %ecx
+	cmp	%eax, %ecx
+	jne	L(diffin4bytes)
+	xor	%eax, %eax
+	ret
+
+	.p2align 4
+L(3bytes):
+	movzwl	-3(%rdi), %eax
+	movzwl	-3(%rsi), %ecx
+	cmp	%eax, %ecx
+	jne	L(diffin2bytes)
+L(1bytes):
+	movzbl	-1(%rdi), %eax
+	movzbl	-1(%rsi), %ecx
+	sub	%ecx, %eax
+	ret
+# endif
+
+	.p2align 4
+L(68bytes):
+	movdqu	-68(%rdi), %xmm2
+	movdqu	-68(%rsi), %xmm1
+	mov	$-68, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(52bytes):
+	movdqu	-52(%rdi), %xmm2
+	movdqu	-52(%rsi), %xmm1
+	mov	$-52, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(36bytes):
+	movdqu	-36(%rdi), %xmm2
+	movdqu	-36(%rsi), %xmm1
+	mov	$-36, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(20bytes):
+	movdqu	-20(%rdi), %xmm2
+	movdqu	-20(%rsi), %xmm1
+	mov	$-20, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+	mov	-4(%rsi), %ecx
+
+# ifndef USE_AS_WMEMCMP
+	mov	-4(%rdi), %eax
+	cmp	%eax, %ecx
+# else
+	cmp	-4(%rdi), %ecx
+# endif
+	jne	L(diffin4bytes)
+	xor	%eax, %eax
+	ret
+
+# ifndef USE_AS_WMEMCMP
+/* unreal cases for wmemcmp */
+	.p2align 4
+L(69bytes):
+	movdqu	-69(%rsi), %xmm1
+	movdqu	-69(%rdi), %xmm2
+	mov	$-69, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(53bytes):
+	movdqu	-53(%rsi), %xmm1
+	movdqu	-53(%rdi), %xmm2
+	mov	$-53, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(37bytes):
+	movdqu	-37(%rsi), %xmm1
+	movdqu	-37(%rdi), %xmm2
+	mov	$-37, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(21bytes):
+	movdqu	-21(%rsi), %xmm1
+	movdqu	-21(%rdi), %xmm2
+	mov	$-21, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+	mov	-8(%rdi), %rax
+	mov	-8(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	xor	%eax, %eax
+	ret
+
+	.p2align 4
+L(70bytes):
+	movdqu	-70(%rsi), %xmm1
+	movdqu	-70(%rdi), %xmm2
+	mov	$-70, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(54bytes):
+	movdqu	-54(%rsi), %xmm1
+	movdqu	-54(%rdi), %xmm2
+	mov	$-54, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(38bytes):
+	movdqu	-38(%rsi), %xmm1
+	movdqu	-38(%rdi), %xmm2
+	mov	$-38, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(22bytes):
+	movdqu	-22(%rsi), %xmm1
+	movdqu	-22(%rdi), %xmm2
+	mov	$-22, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+	mov	-8(%rdi), %rax
+	mov	-8(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	xor	%eax, %eax
+	ret
+
+	.p2align 4
+L(71bytes):
+	movdqu	-71(%rsi), %xmm1
+	movdqu	-71(%rdi), %xmm2
+	mov	$-71, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(55bytes):
+	movdqu	-55(%rdi), %xmm2
+	movdqu	-55(%rsi), %xmm1
+	mov	$-55, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(39bytes):
+	movdqu	-39(%rdi), %xmm2
+	movdqu	-39(%rsi), %xmm1
+	mov	$-39, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(23bytes):
+	movdqu	-23(%rdi), %xmm2
+	movdqu	-23(%rsi), %xmm1
+	mov	$-23, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+	mov	-8(%rdi), %rax
+	mov	-8(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	xor	%eax, %eax
+	ret
+# endif
+
+	.p2align 4
+L(72bytes):
+	movdqu	-72(%rsi), %xmm1
+	movdqu	-72(%rdi), %xmm2
+	mov	$-72, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(56bytes):
+	movdqu	-56(%rdi), %xmm2
+	movdqu	-56(%rsi), %xmm1
+	mov	$-56, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(40bytes):
+	movdqu	-40(%rdi), %xmm2
+	movdqu	-40(%rsi), %xmm1
+	mov	$-40, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(24bytes):
+	movdqu	-24(%rdi), %xmm2
+	movdqu	-24(%rsi), %xmm1
+	mov	$-24, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+
+	mov	-8(%rsi), %rcx
+	mov	-8(%rdi), %rax
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	xor	%eax, %eax
+	ret
+
+# ifndef USE_AS_WMEMCMP
+/* unreal cases for wmemcmp */
+	.p2align 4
+L(73bytes):
+	movdqu	-73(%rsi), %xmm1
+	movdqu	-73(%rdi), %xmm2
+	mov	$-73, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(57bytes):
+	movdqu	-57(%rdi), %xmm2
+	movdqu	-57(%rsi), %xmm1
+	mov	$-57, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(41bytes):
+	movdqu	-41(%rdi), %xmm2
+	movdqu	-41(%rsi), %xmm1
+	mov	$-41, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(25bytes):
+	movdqu	-25(%rdi), %xmm2
+	movdqu	-25(%rsi), %xmm1
+	mov	$-25, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+	mov	-9(%rdi), %rax
+	mov	-9(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	movzbl	-1(%rdi), %eax
+	movzbl	-1(%rsi), %ecx
+	sub	%ecx, %eax
+	ret
+
+	.p2align 4
+L(74bytes):
+	movdqu	-74(%rsi), %xmm1
+	movdqu	-74(%rdi), %xmm2
+	mov	$-74, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(58bytes):
+	movdqu	-58(%rdi), %xmm2
+	movdqu	-58(%rsi), %xmm1
+	mov	$-58, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(42bytes):
+	movdqu	-42(%rdi), %xmm2
+	movdqu	-42(%rsi), %xmm1
+	mov	$-42, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(26bytes):
+	movdqu	-26(%rdi), %xmm2
+	movdqu	-26(%rsi), %xmm1
+	mov	$-26, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+	mov	-10(%rdi), %rax
+	mov	-10(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	movzwl	-2(%rdi), %eax
+	movzwl	-2(%rsi), %ecx
+	jmp	L(diffin2bytes)
+
+	.p2align 4
+L(75bytes):
+	movdqu	-75(%rsi), %xmm1
+	movdqu	-75(%rdi), %xmm2
+	mov	$-75, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(59bytes):
+	movdqu	-59(%rdi), %xmm2
+	movdqu	-59(%rsi), %xmm1
+	mov	$-59, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(43bytes):
+	movdqu	-43(%rdi), %xmm2
+	movdqu	-43(%rsi), %xmm1
+	mov	$-43, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(27bytes):
+	movdqu	-27(%rdi), %xmm2
+	movdqu	-27(%rsi), %xmm1
+	mov	$-27, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+	mov	-11(%rdi), %rax
+	mov	-11(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	mov	-4(%rdi), %eax
+	mov	-4(%rsi), %ecx
+	cmp	%eax, %ecx
+	jne	L(diffin4bytes)
+	xor	%eax, %eax
+	ret
+# endif
+	.p2align 4
+L(76bytes):
+	movdqu	-76(%rsi), %xmm1
+	movdqu	-76(%rdi), %xmm2
+	mov	$-76, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(60bytes):
+	movdqu	-60(%rdi), %xmm2
+	movdqu	-60(%rsi), %xmm1
+	mov	$-60, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(44bytes):
+	movdqu	-44(%rdi), %xmm2
+	movdqu	-44(%rsi), %xmm1
+	mov	$-44, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(28bytes):
+	movdqu	-28(%rdi), %xmm2
+	movdqu	-28(%rsi), %xmm1
+	mov	$-28, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+	mov	-12(%rdi), %rax
+	mov	-12(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	mov	-4(%rsi), %ecx
+# ifndef USE_AS_WMEMCMP
+	mov	-4(%rdi), %eax
+	cmp	%eax, %ecx
+# else
+	cmp	-4(%rdi), %ecx
+# endif
+	jne	L(diffin4bytes)
+	xor	%eax, %eax
+	ret
+
+# ifndef USE_AS_WMEMCMP
+/* unreal cases for wmemcmp */
+	.p2align 4
+L(77bytes):
+	movdqu	-77(%rsi), %xmm1
+	movdqu	-77(%rdi), %xmm2
+	mov	$-77, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(61bytes):
+	movdqu	-61(%rdi), %xmm2
+	movdqu	-61(%rsi), %xmm1
+	mov	$-61, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(45bytes):
+	movdqu	-45(%rdi), %xmm2
+	movdqu	-45(%rsi), %xmm1
+	mov	$-45, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(29bytes):
+	movdqu	-29(%rdi), %xmm2
+	movdqu	-29(%rsi), %xmm1
+	mov	$-29, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+
+	mov	-13(%rdi), %rax
+	mov	-13(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+
+	mov	-8(%rdi), %rax
+	mov	-8(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	xor	%eax, %eax
+	ret
+
+	.p2align 4
+L(78bytes):
+	movdqu	-78(%rsi), %xmm1
+	movdqu	-78(%rdi), %xmm2
+	mov	$-78, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(62bytes):
+	movdqu	-62(%rdi), %xmm2
+	movdqu	-62(%rsi), %xmm1
+	mov	$-62, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(46bytes):
+	movdqu	-46(%rdi), %xmm2
+	movdqu	-46(%rsi), %xmm1
+	mov	$-46, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(30bytes):
+	movdqu	-30(%rdi), %xmm2
+	movdqu	-30(%rsi), %xmm1
+	mov	$-30, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+	mov	-14(%rdi), %rax
+	mov	-14(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	mov	-8(%rdi), %rax
+	mov	-8(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	xor	%eax, %eax
+	ret
+
+	.p2align 4
+L(79bytes):
+	movdqu	-79(%rsi), %xmm1
+	movdqu	-79(%rdi), %xmm2
+	mov	$-79, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(63bytes):
+	movdqu	-63(%rdi), %xmm2
+	movdqu	-63(%rsi), %xmm1
+	mov	$-63, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(47bytes):
+	movdqu	-47(%rdi), %xmm2
+	movdqu	-47(%rsi), %xmm1
+	mov	$-47, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(31bytes):
+	movdqu	-31(%rdi), %xmm2
+	movdqu	-31(%rsi), %xmm1
+	mov	$-31, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+	mov	-15(%rdi), %rax
+	mov	-15(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	mov	-8(%rdi), %rax
+	mov	-8(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	xor	%eax, %eax
+	ret
+# endif
+	.p2align 4
+L(64bytes):
+	movdqu	-64(%rdi), %xmm2
+	movdqu	-64(%rsi), %xmm1
+	mov	$-64, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(48bytes):
+	movdqu	-48(%rdi), %xmm2
+	movdqu	-48(%rsi), %xmm1
+	mov	$-48, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+L(32bytes):
+	movdqu	-32(%rdi), %xmm2
+	movdqu	-32(%rsi), %xmm1
+	mov	$-32, %dl
+	pxor	%xmm1, %xmm2
+	ptest	%xmm2, %xmm0
+	jnc	L(less16bytes)
+
+	mov	-16(%rdi), %rax
+	mov	-16(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+
+	mov	-8(%rdi), %rax
+	mov	-8(%rsi), %rcx
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	xor	%eax, %eax
+	ret
+
+/*
+ * Aligned 8 bytes to avoid 2 branch "taken" in one 16 alinged code block.
+ */
+	.p2align 3
+L(less16bytes):
+	movsbq	%dl, %rdx
+	mov	(%rsi, %rdx), %rcx
+	mov	(%rdi, %rdx), %rax
+	cmp	%rax, %rcx
+	jne	L(diffin8bytes)
+	mov	8(%rsi, %rdx), %rcx
+	mov	8(%rdi, %rdx), %rax
+L(diffin8bytes):
+	cmp	%eax, %ecx
+	jne	L(diffin4bytes)
+	shr	$32, %rcx
+	shr	$32, %rax
+
+# ifdef USE_AS_WMEMCMP
+/* for wmemcmp */
+	cmp	%eax, %ecx
+	jne	L(diffin4bytes)
+	xor	%eax, %eax
+	ret
+# endif
+
+L(diffin4bytes):
+# ifndef USE_AS_WMEMCMP
+	cmp	%cx, %ax
+	jne	L(diffin2bytes)
+	shr	$16, %ecx
+	shr	$16, %eax
+L(diffin2bytes):
+	cmp	%cl, %al
+	jne	L(end)
+	and	$0xffff, %eax
+	and	$0xffff, %ecx
+	sub	%ecx, %eax
+	ret
+
+	.p2align 4
+L(end):
+	and	$0xff, %eax
+	and	$0xff, %ecx
+	sub	%ecx, %eax
+	ret
+# else
+
+/* for wmemcmp */
+	mov	$1, %eax
+	jl	L(nequal_bigger)
+	neg	%eax
+	ret
+
+	.p2align 4
+L(nequal_bigger):
+	ret
+
+L(unreal_case):
+	xor	%eax, %eax
+	ret
+# endif
+
+END (MEMCMP)
+
+	.section .rodata.sse4.1,"a",@progbits
+	.p2align 3
+# ifndef USE_AS_WMEMCMP
+L(table_64bytes):
+	.int	JMPTBL (L(0bytes), L(table_64bytes))
+	.int	JMPTBL (L(1bytes), L(table_64bytes))
+	.int	JMPTBL (L(2bytes), L(table_64bytes))
+	.int	JMPTBL (L(3bytes), L(table_64bytes))
+	.int	JMPTBL (L(4bytes), L(table_64bytes))
+	.int	JMPTBL (L(5bytes), L(table_64bytes))
+	.int	JMPTBL (L(6bytes), L(table_64bytes))
+	.int	JMPTBL (L(7bytes), L(table_64bytes))
+	.int	JMPTBL (L(8bytes), L(table_64bytes))
+	.int	JMPTBL (L(9bytes), L(table_64bytes))
+	.int	JMPTBL (L(10bytes), L(table_64bytes))
+	.int	JMPTBL (L(11bytes), L(table_64bytes))
+	.int	JMPTBL (L(12bytes), L(table_64bytes))
+	.int	JMPTBL (L(13bytes), L(table_64bytes))
+	.int	JMPTBL (L(14bytes), L(table_64bytes))
+	.int	JMPTBL (L(15bytes), L(table_64bytes))
+	.int	JMPTBL (L(16bytes), L(table_64bytes))
+	.int	JMPTBL (L(17bytes), L(table_64bytes))
+	.int	JMPTBL (L(18bytes), L(table_64bytes))
+	.int	JMPTBL (L(19bytes), L(table_64bytes))
+	.int	JMPTBL (L(20bytes), L(table_64bytes))
+	.int	JMPTBL (L(21bytes), L(table_64bytes))
+	.int	JMPTBL (L(22bytes), L(table_64bytes))
+	.int	JMPTBL (L(23bytes), L(table_64bytes))
+	.int	JMPTBL (L(24bytes), L(table_64bytes))
+	.int	JMPTBL (L(25bytes), L(table_64bytes))
+	.int	JMPTBL (L(26bytes), L(table_64bytes))
+	.int	JMPTBL (L(27bytes), L(table_64bytes))
+	.int	JMPTBL (L(28bytes), L(table_64bytes))
+	.int	JMPTBL (L(29bytes), L(table_64bytes))
+	.int	JMPTBL (L(30bytes), L(table_64bytes))
+	.int	JMPTBL (L(31bytes), L(table_64bytes))
+	.int	JMPTBL (L(32bytes), L(table_64bytes))
+	.int	JMPTBL (L(33bytes), L(table_64bytes))
+	.int	JMPTBL (L(34bytes), L(table_64bytes))
+	.int	JMPTBL (L(35bytes), L(table_64bytes))
+	.int	JMPTBL (L(36bytes), L(table_64bytes))
+	.int	JMPTBL (L(37bytes), L(table_64bytes))
+	.int	JMPTBL (L(38bytes), L(table_64bytes))
+	.int	JMPTBL (L(39bytes), L(table_64bytes))
+	.int	JMPTBL (L(40bytes), L(table_64bytes))
+	.int	JMPTBL (L(41bytes), L(table_64bytes))
+	.int	JMPTBL (L(42bytes), L(table_64bytes))
+	.int	JMPTBL (L(43bytes), L(table_64bytes))
+	.int	JMPTBL (L(44bytes), L(table_64bytes))
+	.int	JMPTBL (L(45bytes), L(table_64bytes))
+	.int	JMPTBL (L(46bytes), L(table_64bytes))
+	.int	JMPTBL (L(47bytes), L(table_64bytes))
+	.int	JMPTBL (L(48bytes), L(table_64bytes))
+	.int	JMPTBL (L(49bytes), L(table_64bytes))
+	.int	JMPTBL (L(50bytes), L(table_64bytes))
+	.int	JMPTBL (L(51bytes), L(table_64bytes))
+	.int	JMPTBL (L(52bytes), L(table_64bytes))
+	.int	JMPTBL (L(53bytes), L(table_64bytes))
+	.int	JMPTBL (L(54bytes), L(table_64bytes))
+	.int	JMPTBL (L(55bytes), L(table_64bytes))
+	.int	JMPTBL (L(56bytes), L(table_64bytes))
+	.int	JMPTBL (L(57bytes), L(table_64bytes))
+	.int	JMPTBL (L(58bytes), L(table_64bytes))
+	.int	JMPTBL (L(59bytes), L(table_64bytes))
+	.int	JMPTBL (L(60bytes), L(table_64bytes))
+	.int	JMPTBL (L(61bytes), L(table_64bytes))
+	.int	JMPTBL (L(62bytes), L(table_64bytes))
+	.int	JMPTBL (L(63bytes), L(table_64bytes))
+	.int	JMPTBL (L(64bytes), L(table_64bytes))
+	.int	JMPTBL (L(65bytes), L(table_64bytes))
+	.int	JMPTBL (L(66bytes), L(table_64bytes))
+	.int	JMPTBL (L(67bytes), L(table_64bytes))
+	.int	JMPTBL (L(68bytes), L(table_64bytes))
+	.int	JMPTBL (L(69bytes), L(table_64bytes))
+	.int	JMPTBL (L(70bytes), L(table_64bytes))
+	.int	JMPTBL (L(71bytes), L(table_64bytes))
+	.int	JMPTBL (L(72bytes), L(table_64bytes))
+	.int	JMPTBL (L(73bytes), L(table_64bytes))
+	.int	JMPTBL (L(74bytes), L(table_64bytes))
+	.int	JMPTBL (L(75bytes), L(table_64bytes))
+	.int	JMPTBL (L(76bytes), L(table_64bytes))
+	.int	JMPTBL (L(77bytes), L(table_64bytes))
+	.int	JMPTBL (L(78bytes), L(table_64bytes))
+	.int	JMPTBL (L(79bytes), L(table_64bytes))
+# else
+L(table_64bytes):
+	.int	JMPTBL (L(0bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(4bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(8bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(12bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(16bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(20bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(24bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(28bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(32bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(36bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(40bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(44bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(48bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(52bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(56bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(60bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(64bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(68bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(72bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(76bytes), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+	.int	JMPTBL (L(unreal_case), L(table_64bytes))
+# endif
+#endif
