Improved st{r,p}{,n}cpy for SSE2 and SSSE3 on x86-64

1 files changed, 1718 insertions, 0 deletions

diff --git a/sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S b/sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S
new file mode 100644
index 0000000000..9a8d1860a0
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S
@@ -0,0 +1,1718 @@
+/* strcpy with SSE2 and unaligned load
+   Copyright (C) 2011 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef NOT_IN_libc
+
+# include <sysdep.h>
+
+# ifndef STRCPY
+#  define STRCPY  __strcpy_sse2_unaligned
+# endif
+
+# define JMPTBL(I, B)	I - B
+# define BRANCH_TO_JMPTBL_ENTRY(TABLE, INDEX, SCALE)             \
+	lea	TABLE(%rip), %r11;                              \
+	movslq	(%r11, INDEX, SCALE), %rcx;                     \
+	lea	(%r11, %rcx), %rcx;                             \
+	jmp	*%rcx
+
+	.text
+ENTRY (STRCPY)
+# ifdef USE_AS_STRNCPY
+	mov	%rdx, %r8
+	test	%r8, %r8
+	jz	L(ExitZero)
+# endif
+	mov	%rsi, %rcx
+# ifndef USE_AS_STPCPY
+	mov	%rdi, %rax      /* save result */
+# endif
+
+	and	$15, %rcx
+	jz	L(SourceStringAlignmentZero)
+
+	and	$-16, %rsi
+	pxor	%xmm0, %xmm0
+	pxor	%xmm1, %xmm1
+
+	pcmpeqb	(%rsi), %xmm1
+# ifdef USE_AS_STRNCPY
+	add	%rcx, %r8
+# endif
+	pmovmskb %xmm1, %rdx
+	shr	%cl, %rdx
+# ifdef USE_AS_STRNCPY
+#  if defined USE_AS_STPCPY
+	cmp	$16, %r8
+#  else
+	cmp	$17, %r8
+#  endif
+	jbe	L(CopyFrom1To16BytesTailCase2OrCase3)
+# endif
+	test	%rdx, %rdx
+	jnz	L(CopyFrom1To16BytesTail)
+
+	pcmpeqb	16(%rsi), %xmm0
+	pmovmskb %xmm0, %rdx
+# ifdef USE_AS_STRNCPY
+#  if defined USE_AS_STPCPY
+	cmp	$32, %r8
+#  else
+	cmp	$33, %r8
+#  endif
+	jbe	L(CopyFrom1To32BytesCase2OrCase3)
+# endif
+	test	%rdx, %rdx
+	jnz	L(CopyFrom1To32Bytes)
+
+	movdqu	(%rsi, %rcx), %xmm1   /* copy 16 bytes */
+	movdqu	%xmm1, (%rdi)
+
+	sub	%rcx, %rdi
+
+/* If source adress alignment != destination adress alignment */
+	.p2align 4
+L(Unalign16Both):
+	mov	$16, %rcx
+	movdqa	(%rsi, %rcx), %xmm1
+	movaps	16(%rsi, %rcx), %xmm2
+	movdqu	%xmm1, (%rdi, %rcx)
+	pcmpeqb	%xmm2, %xmm0
+	pmovmskb %xmm0, %rdx
+	add	$16, %rcx
+# ifdef USE_AS_STRNCPY
+	sub	$48, %r8
+	jbe	L(CopyFrom1To16BytesCase2OrCase3)
+# endif
+	test	%rdx, %rdx
+# if defined USE_AS_STRNCPY
+	jnz	L(CopyFrom1To16BytesUnalignedXmm2)
+# else
+	jnz	L(CopyFrom1To16Bytes)
+# endif
+
+	movaps	16(%rsi, %rcx), %xmm3
+	movdqu	%xmm2, (%rdi, %rcx)
+	pcmpeqb	%xmm3, %xmm0
+	pmovmskb %xmm0, %rdx
+	add	$16, %rcx
+# ifdef USE_AS_STRNCPY
+	sub	$16, %r8
+	jbe	L(CopyFrom1To16BytesCase2OrCase3)
+# endif
+	test	%rdx, %rdx
+# if defined USE_AS_STRNCPY
+	jnz	L(CopyFrom1To16BytesUnalignedXmm3)
+# else
+	jnz	L(CopyFrom1To16Bytes)
+# endif
+
+	movaps	16(%rsi, %rcx), %xmm4
+	movdqu	%xmm3, (%rdi, %rcx)
+	pcmpeqb	%xmm4, %xmm0
+	pmovmskb %xmm0, %rdx
+	add	$16, %rcx
+# ifdef USE_AS_STRNCPY
+	sub	$16, %r8
+	jbe	L(CopyFrom1To16BytesCase2OrCase3)
+# endif
+	test	%rdx, %rdx
+# if defined USE_AS_STRNCPY
+	jnz	L(CopyFrom1To16BytesUnalignedXmm4)
+# else
+	jnz	L(CopyFrom1To16Bytes)
+# endif
+
+	movaps	16(%rsi, %rcx), %xmm1
+	movdqu	%xmm4, (%rdi, %rcx)
+	pcmpeqb	%xmm1, %xmm0
+	pmovmskb %xmm0, %rdx
+	add	$16, %rcx
+# ifdef USE_AS_STRNCPY
+	sub	$16, %r8
+	jbe	L(CopyFrom1To16BytesCase2OrCase3)
+# endif
+	test	%rdx, %rdx
+# if defined USE_AS_STRNCPY
+	jnz	L(CopyFrom1To16BytesUnalignedXmm1)
+# else
+	jnz	L(CopyFrom1To16Bytes)
+# endif
+
+	movaps	16(%rsi, %rcx), %xmm2
+	movdqu	%xmm1, (%rdi, %rcx)
+	pcmpeqb	%xmm2, %xmm0
+	pmovmskb %xmm0, %rdx
+	add	$16, %rcx
+# ifdef USE_AS_STRNCPY
+	sub	$16, %r8
+	jbe	L(CopyFrom1To16BytesCase2OrCase3)
+# endif
+	test	%rdx, %rdx
+# if defined USE_AS_STRNCPY
+	jnz	L(CopyFrom1To16BytesUnalignedXmm2)
+# else
+	jnz	L(CopyFrom1To16Bytes)
+# endif
+
+	movaps	16(%rsi, %rcx), %xmm3
+	movdqu	%xmm2, (%rdi, %rcx)
+	pcmpeqb	%xmm3, %xmm0
+	pmovmskb %xmm0, %rdx
+	add	$16, %rcx
+# ifdef USE_AS_STRNCPY
+	sub	$16, %r8
+	jbe	L(CopyFrom1To16BytesCase2OrCase3)
+# endif
+	test	%rdx, %rdx
+# if defined USE_AS_STRNCPY
+	jnz	L(CopyFrom1To16BytesUnalignedXmm3)
+# else
+	jnz	L(CopyFrom1To16Bytes)
+# endif
+
+	movdqu	%xmm3, (%rdi, %rcx)
+	mov	%rsi, %rdx
+	lea	16(%rsi, %rcx), %rsi
+	and	$-0x40, %rsi
+	sub	%rsi, %rdx
+	sub	%rdx, %rdi
+# ifdef USE_AS_STRNCPY
+	lea	128(%r8, %rdx), %r8
+# endif
+L(Unaligned64Loop):
+	movaps	(%rsi), %xmm2
+	movaps	%xmm2, %xmm4
+	movaps	16(%rsi), %xmm5
+	movaps	32(%rsi), %xmm3
+	movaps	%xmm3, %xmm6
+	movaps	48(%rsi), %xmm7
+	pminub	%xmm5, %xmm2
+	pminub	%xmm7, %xmm3
+	pminub	%xmm2, %xmm3
+	pcmpeqb	%xmm0, %xmm3
+	pmovmskb %xmm3, %rdx
+# ifdef USE_AS_STRNCPY
+	sub	$64, %r8
+	jbe	L(UnalignedLeaveCase2OrCase3)
+# endif
+	test	%rdx, %rdx
+	jnz	L(Unaligned64Leave)
+
+L(Unaligned64Loop_start):
+	add	$64, %rdi
+	add	$64, %rsi
+	movdqu	%xmm4, -64(%rdi)
+	movaps	(%rsi), %xmm2
+	movdqa	%xmm2, %xmm4
+	movdqu	%xmm5, -48(%rdi)
+	movaps	16(%rsi), %xmm5
+	pminub	%xmm5, %xmm2
+	movaps	32(%rsi), %xmm3
+	movdqu	%xmm6, -32(%rdi)
+	movaps	%xmm3, %xmm6
+	movdqu	%xmm7, -16(%rdi)
+	movaps	48(%rsi), %xmm7
+	pminub	%xmm7, %xmm3
+	pminub	%xmm2, %xmm3
+	pcmpeqb	%xmm0, %xmm3
+	pmovmskb %xmm3, %rdx
+# ifdef USE_AS_STRNCPY
+	sub	$64, %r8
+	jbe	L(UnalignedLeaveCase2OrCase3)
+# endif
+	test	%rdx, %rdx
+	jz	L(Unaligned64Loop_start)
+
+L(Unaligned64Leave):
+	pxor	%xmm1, %xmm1
+
+	pcmpeqb	%xmm4, %xmm0
+	pcmpeqb	%xmm5, %xmm1
+	pmovmskb %xmm0, %rdx
+	pmovmskb %xmm1, %rcx
+	test	%rdx, %rdx
+	jnz	L(CopyFrom1To16BytesUnaligned_0)
+	test	%rcx, %rcx
+	jnz	L(CopyFrom1To16BytesUnaligned_16)
+
+	pcmpeqb	%xmm6, %xmm0
+	pcmpeqb	%xmm7, %xmm1
+	pmovmskb %xmm0, %rdx
+	pmovmskb %xmm1, %rcx
+	test	%rdx, %rdx
+	jnz	L(CopyFrom1To16BytesUnaligned_32)
+
+	bsf	%rcx, %rdx
+	movdqu	%xmm4, (%rdi)
+	movdqu	%xmm5, 16(%rdi)
+	movdqu	%xmm6, 32(%rdi)
+# if defined USE_AS_STRNCPY
+#  ifdef USE_AS_STPCPY
+	lea	48(%rdi, %rdx), %rax
+#  endif
+	movdqu	%xmm7, 48(%rdi)
+	add	$15, %r8
+	sub	%rdx, %r8
+	lea	49(%rdi, %rdx), %rdi
+	jmp	L(StrncpyFillTailWithZero)
+# else
+	add	$48, %rsi
+	add	$48, %rdi
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitTable), %rdx, 4)
+# endif
+
+/* If source adress alignment == destination adress alignment */
+
+L(SourceStringAlignmentZero):
+	pxor	%xmm0, %xmm0
+	movdqa	(%rsi), %xmm1
+	pcmpeqb	%xmm1, %xmm0
+	pmovmskb %xmm0, %rdx
+
+# ifdef USE_AS_STRNCPY
+#  if defined USE_AS_STPCPY
+	cmp	$16, %r8
+#  else
+	cmp	$17, %r8
+#  endif
+	jbe	L(CopyFrom1To16BytesTail1Case2OrCase3)
+# endif
+	test	%rdx, %rdx
+	jnz	L(CopyFrom1To16BytesTail1)
+
+	pcmpeqb	16(%rsi), %xmm0
+	movdqu	%xmm1, (%rdi)
+	pmovmskb %xmm0, %rdx
+
+# ifdef USE_AS_STRNCPY
+#  if defined USE_AS_STPCPY
+	cmp	$32, %r8
+#  else
+	cmp	$33, %r8
+#  endif
+	jbe	L(CopyFrom1To32Bytes1Case2OrCase3)
+# endif
+	test	%rdx, %rdx
+	jnz	L(CopyFrom1To32Bytes1)
+	jmp	L(Unalign16Both)
+
+/* ------End of main part with loops--------------------- */
+
+/* Case1 */
+
+# if (!defined USE_AS_STRNCPY)
+	.p2align 4
+L(CopyFrom1To16Bytes):
+	add	%rcx, %rdi
+	add	%rcx, %rsi
+	bsf	%rdx, %rdx
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitTable), %rdx, 4)
+# endif
+	.p2align 4
+L(CopyFrom1To16BytesTail):
+# if defined USE_AS_STRNCPY
+	sub	%rcx, %r8
+# endif
+	add	%rcx, %rsi
+	bsf	%rdx, %rdx
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitTable), %rdx, 4)
+
+	.p2align 4
+L(CopyFrom1To32Bytes1):
+	add	$16, %rsi
+	add	$16, %rdi
+# if defined USE_AS_STRNCPY
+	sub	$16, %r8
+# endif
+L(CopyFrom1To16BytesTail1):
+	bsf	%rdx, %rdx
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitTable), %rdx, 4)
+
+	.p2align 4
+L(CopyFrom1To32Bytes):
+# if defined USE_AS_STRNCPY
+	sub	%rcx, %r8
+# endif
+	bsf	%rdx, %rdx
+	add	%rcx, %rsi
+	add	$16, %rdx
+	sub	%rcx, %rdx
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitTable), %rdx, 4)
+
+	.p2align 4
+L(CopyFrom1To16BytesUnaligned_0):
+	bsf	%rdx, %rdx
+# if defined USE_AS_STRNCPY
+#  ifdef USE_AS_STPCPY
+	lea	(%rdi, %rdx), %rax
+#  endif
+	movdqu	%xmm4, (%rdi)
+	add	$63, %r8
+	sub	%rdx, %r8
+	lea	1(%rdi, %rdx), %rdi
+	jmp	L(StrncpyFillTailWithZero)
+# else
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitTable), %rdx, 4)
+# endif
+
+	.p2align 4
+L(CopyFrom1To16BytesUnaligned_16):
+	bsf	%rcx, %rdx
+	movdqu	%xmm4, (%rdi)
+# if defined USE_AS_STRNCPY
+#  ifdef USE_AS_STPCPY
+	lea	16(%rdi, %rdx), %rax
+#  endif
+	movdqu	%xmm5, 16(%rdi)
+	add	$47, %r8
+	sub	%rdx, %r8
+	lea	17(%rdi, %rdx), %rdi
+	jmp	L(StrncpyFillTailWithZero)
+# else
+	add	$16, %rsi
+	add	$16, %rdi
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitTable), %rdx, 4)
+# endif
+
+	.p2align 4
+L(CopyFrom1To16BytesUnaligned_32):
+	bsf	%rdx, %rdx
+	movdqu	%xmm4, (%rdi)
+	movdqu	%xmm5, 16(%rdi)
+# if defined USE_AS_STRNCPY
+#  ifdef USE_AS_STPCPY
+	lea	32(%rdi, %rdx), %rax
+#  endif
+	movdqu	%xmm6, 32(%rdi)
+	add	$31, %r8
+	sub	%rdx, %r8
+	lea	33(%rdi, %rdx), %rdi
+	jmp	L(StrncpyFillTailWithZero)
+# else
+	add	$32, %rsi
+	add	$32, %rdi
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitTable), %rdx, 4)
+# endif
+
+# ifdef USE_AS_STRNCPY
+	.p2align 4
+L(CopyFrom1To16BytesUnalignedXmm6):
+	movdqu	%xmm6, (%rdi, %rcx)
+	jmp	L(CopyFrom1To16BytesXmmExit)
+
+	.p2align 4
+L(CopyFrom1To16BytesUnalignedXmm5):
+	movdqu	%xmm5, (%rdi, %rcx)
+	jmp	L(CopyFrom1To16BytesXmmExit)
+
+	.p2align 4
+L(CopyFrom1To16BytesUnalignedXmm4):
+	movdqu	%xmm4, (%rdi, %rcx)
+	jmp	L(CopyFrom1To16BytesXmmExit)
+
+	.p2align 4
+L(CopyFrom1To16BytesUnalignedXmm3):
+	movdqu	%xmm3, (%rdi, %rcx)
+	jmp	L(CopyFrom1To16BytesXmmExit)
+
+	.p2align 4
+L(CopyFrom1To16BytesUnalignedXmm1):
+	movdqu	%xmm1, (%rdi, %rcx)
+	jmp	L(CopyFrom1To16BytesXmmExit)
+
+	.p2align 4
+L(CopyFrom1To16BytesExit):
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitTable), %rdx, 4)
+
+/* Case2 */
+
+	.p2align 4
+L(CopyFrom1To16BytesCase2):
+	add	$16, %r8
+	add	%rcx, %rdi
+	add	%rcx, %rsi
+	bsf	%rdx, %rdx
+	cmp	%r8, %rdx
+	jb	L(CopyFrom1To16BytesExit)
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %r8, 4)
+
+	.p2align 4
+L(CopyFrom1To32BytesCase2):
+	sub	%rcx, %r8
+	add	%rcx, %rsi
+	bsf	%rdx, %rdx
+	add	$16, %rdx
+	sub	%rcx, %rdx
+	cmp	%r8, %rdx
+	jb	L(CopyFrom1To16BytesExit)
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %r8, 4)
+
+L(CopyFrom1To16BytesTailCase2):
+	sub	%rcx, %r8
+	add	%rcx, %rsi
+	bsf	%rdx, %rdx
+	cmp	%r8, %rdx
+	jb	L(CopyFrom1To16BytesExit)
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %r8, 4)
+
+L(CopyFrom1To16BytesTail1Case2):
+	bsf	%rdx, %rdx
+	cmp	%r8, %rdx
+	jb	L(CopyFrom1To16BytesExit)
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %r8, 4)
+
+/* Case2 or Case3,  Case3 */
+
+	.p2align 4
+L(CopyFrom1To16BytesCase2OrCase3):
+	test	%rdx, %rdx
+	jnz	L(CopyFrom1To16BytesCase2)
+L(CopyFrom1To16BytesCase3):
+	add	$16, %r8
+	add	%rcx, %rdi
+	add	%rcx, %rsi
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %r8, 4)
+
+	.p2align 4
+L(CopyFrom1To32BytesCase2OrCase3):
+	test	%rdx, %rdx
+	jnz	L(CopyFrom1To32BytesCase2)
+	sub	%rcx, %r8
+	add	%rcx, %rsi
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %r8, 4)
+
+	.p2align 4
+L(CopyFrom1To16BytesTailCase2OrCase3):
+	test	%rdx, %rdx
+	jnz	L(CopyFrom1To16BytesTailCase2)
+	sub	%rcx, %r8
+	add	%rcx, %rsi
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %r8, 4)
+
+	.p2align 4
+L(CopyFrom1To32Bytes1Case2OrCase3):
+	add	$16, %rdi
+	add	$16, %rsi
+	sub	$16, %r8
+L(CopyFrom1To16BytesTail1Case2OrCase3):
+	test	%rdx, %rdx
+	jnz	L(CopyFrom1To16BytesTail1Case2)
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %r8, 4)
+
+# endif
+
+/* ----End labels regarding with copying 1-16 bytes--and 1-32 bytes---- */
+
+	.p2align 4
+L(Exit1):
+	mov	%dh, (%rdi)
+# ifdef USE_AS_STPCPY
+	lea	(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$1, %r8
+	lea	1(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit2):
+	mov	(%rsi), %dx
+	mov	%dx, (%rdi)
+# ifdef USE_AS_STPCPY
+	lea	1(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$2, %r8
+	lea	2(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit3):
+	mov	(%rsi), %cx
+	mov	%cx, (%rdi)
+	mov	%dh, 2(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	2(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$3, %r8
+	lea	3(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit4):
+	mov	(%rsi), %edx
+	mov	%edx, (%rdi)
+# ifdef USE_AS_STPCPY
+	lea	3(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$4, %r8
+	lea	4(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit5):
+	mov	(%rsi), %ecx
+	mov	%dh, 4(%rdi)
+	mov	%ecx, (%rdi)
+# ifdef USE_AS_STPCPY
+	lea	4(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$5, %r8
+	lea	5(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit6):
+	mov	(%rsi), %ecx
+	mov	4(%rsi), %dx
+	mov	%ecx, (%rdi)
+	mov	%dx, 4(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	5(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$6, %r8
+	lea	6(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit7):
+	mov	(%rsi), %ecx
+	mov	3(%rsi), %edx
+	mov	%ecx, (%rdi)
+	mov	%edx, 3(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	6(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$7, %r8
+	lea	7(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit8):
+	mov	(%rsi), %rdx
+	mov	%rdx, (%rdi)
+# ifdef USE_AS_STPCPY
+	lea	7(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$8, %r8
+	lea	8(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit9):
+	mov	(%rsi), %rcx
+	mov	%dh, 8(%rdi)
+	mov	%rcx, (%rdi)
+# ifdef USE_AS_STPCPY
+	lea	8(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$9, %r8
+	lea	9(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit10):
+	mov	(%rsi), %rcx
+	mov	8(%rsi), %dx
+	mov	%rcx, (%rdi)
+	mov	%dx, 8(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	9(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$10, %r8
+	lea	10(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit11):
+	mov	(%rsi), %rcx
+	mov	7(%rsi), %edx
+	mov	%rcx, (%rdi)
+	mov	%edx, 7(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	10(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$11, %r8
+	lea	11(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit12):
+	mov	(%rsi), %rcx
+	mov	8(%rsi), %edx
+	mov	%rcx, (%rdi)
+	mov	%edx, 8(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	11(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$12, %r8
+	lea	12(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit13):
+	mov	(%rsi), %rcx
+	mov	5(%rsi), %rdx
+	mov	%rcx, (%rdi)
+	mov	%rdx, 5(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	12(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$13, %r8
+	lea	13(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit14):
+	mov	(%rsi), %rcx
+	mov	6(%rsi), %rdx
+	mov	%rcx, (%rdi)
+	mov	%rdx, 6(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	13(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$14, %r8
+	lea	14(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit15):
+	mov	(%rsi), %rcx
+	mov	7(%rsi), %rdx
+	mov	%rcx, (%rdi)
+	mov	%rdx, 7(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	14(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$15, %r8
+	lea	15(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit16):
+	movdqu	(%rsi), %xmm0
+	movdqu	%xmm0, (%rdi)
+# ifdef USE_AS_STPCPY
+	lea	15(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$16, %r8
+	lea	16(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit17):
+	movdqu	(%rsi), %xmm0
+	movdqu	%xmm0, (%rdi)
+	mov	%dh, 16(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	16(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$17, %r8
+	lea	17(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit18):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %cx
+	movdqu	%xmm0, (%rdi)
+	mov	%cx, 16(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	17(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$18, %r8
+	lea	18(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit19):
+	movdqu	(%rsi), %xmm0
+	mov	15(%rsi), %ecx
+	movdqu	%xmm0, (%rdi)
+	mov	%ecx, 15(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	18(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$19, %r8
+	lea	19(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit20):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %ecx
+	movdqu	%xmm0, (%rdi)
+	mov	%ecx, 16(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	19(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$20, %r8
+	lea	20(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit21):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %ecx
+	movdqu	%xmm0, (%rdi)
+	mov	%ecx, 16(%rdi)
+	mov	%dh, 20(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	20(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$21, %r8
+	lea	21(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit22):
+	movdqu	(%rsi), %xmm0
+	mov	14(%rsi), %rcx
+	movdqu	%xmm0, (%rdi)
+	mov	%rcx, 14(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	21(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$22, %r8
+	lea	22(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit23):
+	movdqu	(%rsi), %xmm0
+	mov	15(%rsi), %rcx
+	movdqu	%xmm0, (%rdi)
+	mov	%rcx, 15(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	22(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$23, %r8
+	lea	23(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit24):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %rcx
+	movdqu	%xmm0, (%rdi)
+	mov	%rcx, 16(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	23(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$24, %r8
+	lea	24(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit25):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %rcx
+	movdqu	%xmm0, (%rdi)
+	mov	%rcx, 16(%rdi)
+	mov	%dh, 24(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	24(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$25, %r8
+	lea	25(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit26):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %rdx
+	mov	24(%rsi), %cx
+	movdqu	%xmm0, (%rdi)
+	mov	%rdx, 16(%rdi)
+	mov	%cx, 24(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	25(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$26, %r8
+	lea	26(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit27):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %rdx
+	mov	23(%rsi), %ecx
+	movdqu	%xmm0, (%rdi)
+	mov	%rdx, 16(%rdi)
+	mov	%ecx, 23(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	26(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$27, %r8
+	lea	27(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit28):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %rdx
+	mov	24(%rsi), %ecx
+	movdqu	%xmm0, (%rdi)
+	mov	%rdx, 16(%rdi)
+	mov	%ecx, 24(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	27(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$28, %r8
+	lea	28(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit29):
+	movdqu	(%rsi), %xmm0
+	movdqu	13(%rsi), %xmm2
+	movdqu	%xmm0, (%rdi)
+	movdqu	%xmm2, 13(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	28(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$29, %r8
+	lea	29(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit30):
+	movdqu	(%rsi), %xmm0
+	movdqu	14(%rsi), %xmm2
+	movdqu	%xmm0, (%rdi)
+	movdqu	%xmm2, 14(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	29(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$30, %r8
+	lea	30(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit31):
+	movdqu	(%rsi), %xmm0
+	movdqu	15(%rsi), %xmm2
+	movdqu	%xmm0, (%rdi)
+	movdqu	%xmm2, 15(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	30(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$31, %r8
+	lea	31(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+	.p2align 4
+L(Exit32):
+	movdqu	(%rsi), %xmm0
+	movdqu	16(%rsi), %xmm2
+	movdqu	%xmm0, (%rdi)
+	movdqu	%xmm2, 16(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	31(%rdi), %rax
+# endif
+# if defined USE_AS_STRNCPY
+	sub	$32, %r8
+	lea	32(%rdi), %rdi
+	jnz	L(StrncpyFillTailWithZero)
+# endif
+	ret
+
+# ifdef USE_AS_STRNCPY
+
+	.p2align 4
+L(StrncpyExit0):
+# ifdef USE_AS_STPCPY
+	mov	%rdi, %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit1):
+	mov	(%rsi), %dl
+	mov	%dl, (%rdi)
+# ifdef USE_AS_STPCPY
+	lea	1(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit2):
+	mov	(%rsi), %dx
+	mov	%dx, (%rdi)
+# ifdef USE_AS_STPCPY
+	lea	2(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit3):
+	mov	(%rsi), %cx
+	mov	2(%rsi), %dl
+	mov	%cx, (%rdi)
+	mov	%dl, 2(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	3(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit4):
+	mov	(%rsi), %edx
+	mov	%edx, (%rdi)
+# ifdef USE_AS_STPCPY
+	lea	4(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit5):
+	mov	(%rsi), %ecx
+	mov	4(%rsi), %dl
+	mov	%ecx, (%rdi)
+	mov	%dl, 4(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	5(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit6):
+	mov	(%rsi), %ecx
+	mov	4(%rsi), %dx
+	mov	%ecx, (%rdi)
+	mov	%dx, 4(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	6(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit7):
+	mov	(%rsi), %ecx
+	mov	3(%rsi), %edx
+	mov	%ecx, (%rdi)
+	mov	%edx, 3(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	7(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit8):
+	mov	(%rsi), %rdx
+	mov	%rdx, (%rdi)
+# ifdef USE_AS_STPCPY
+	lea	8(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit9):
+	mov	(%rsi), %rcx
+	mov	8(%rsi), %dl
+	mov	%rcx, (%rdi)
+	mov	%dl, 8(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	9(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit10):
+	mov	(%rsi), %rcx
+	mov	8(%rsi), %dx
+	mov	%rcx, (%rdi)
+	mov	%dx, 8(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	10(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit11):
+	mov	(%rsi), %rcx
+	mov	7(%rsi), %edx
+	mov	%rcx, (%rdi)
+	mov	%edx, 7(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	11(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit12):
+	mov	(%rsi), %rcx
+	mov	8(%rsi), %edx
+	mov	%rcx, (%rdi)
+	mov	%edx, 8(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	12(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit13):
+	mov	(%rsi), %rcx
+	mov	5(%rsi), %rdx
+	mov	%rcx, (%rdi)
+	mov	%rdx, 5(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	13(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit14):
+	mov	(%rsi), %rcx
+	mov	6(%rsi), %rdx
+	mov	%rcx, (%rdi)
+	mov	%rdx, 6(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	14(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit15):
+	mov	(%rsi), %rcx
+	mov	7(%rsi), %rdx
+	mov	%rcx, (%rdi)
+	mov	%rdx, 7(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	15(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit16):
+	movdqu	(%rsi), %xmm0
+	movdqu	%xmm0, (%rdi)
+# ifdef USE_AS_STPCPY
+	lea	16(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit17):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %cl
+	movdqu	%xmm0, (%rdi)
+	mov	%cl, 16(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	17(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit18):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %cx
+	movdqu	%xmm0, (%rdi)
+	mov	%cx, 16(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	18(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit19):
+	movdqu	(%rsi), %xmm0
+	mov	15(%rsi), %ecx
+	movdqu	%xmm0, (%rdi)
+	mov	%ecx, 15(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	19(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit20):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %ecx
+	movdqu	%xmm0, (%rdi)
+	mov	%ecx, 16(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	20(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit21):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %ecx
+	mov	20(%rsi), %dl
+	movdqu	%xmm0, (%rdi)
+	mov	%ecx, 16(%rdi)
+	mov	%dl, 20(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	21(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit22):
+	movdqu	(%rsi), %xmm0
+	mov	14(%rsi), %rcx
+	movdqu	%xmm0, (%rdi)
+	mov	%rcx, 14(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	22(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit23):
+	movdqu	(%rsi), %xmm0
+	mov	15(%rsi), %rcx
+	movdqu	%xmm0, (%rdi)
+	mov	%rcx, 15(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	23(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit24):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %rcx
+	movdqu	%xmm0, (%rdi)
+	mov	%rcx, 16(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	24(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit25):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %rdx
+	mov	24(%rsi), %cl
+	movdqu	%xmm0, (%rdi)
+	mov	%rdx, 16(%rdi)
+	mov	%cl, 24(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	25(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit26):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %rdx
+	mov	24(%rsi), %cx
+	movdqu	%xmm0, (%rdi)
+	mov	%rdx, 16(%rdi)
+	mov	%cx, 24(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	26(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit27):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %rdx
+	mov	23(%rsi), %ecx
+	movdqu	%xmm0, (%rdi)
+	mov	%rdx, 16(%rdi)
+	mov	%ecx, 23(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	27(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit28):
+	movdqu	(%rsi), %xmm0
+	mov	16(%rsi), %rdx
+	mov	24(%rsi), %ecx
+	movdqu	%xmm0, (%rdi)
+	mov	%rdx, 16(%rdi)
+	mov	%ecx, 24(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	28(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit29):
+	movdqu	(%rsi), %xmm0
+	movdqu	13(%rsi), %xmm2
+	movdqu	%xmm0, (%rdi)
+	movdqu	%xmm2, 13(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	29(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit30):
+	movdqu	(%rsi), %xmm0
+	movdqu	14(%rsi), %xmm2
+	movdqu	%xmm0, (%rdi)
+	movdqu	%xmm2, 14(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	30(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit31):
+	movdqu	(%rsi), %xmm0
+	movdqu	15(%rsi), %xmm2
+	movdqu	%xmm0, (%rdi)
+	movdqu	%xmm2, 15(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	31(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit32):
+	movdqu	(%rsi), %xmm0
+	movdqu	16(%rsi), %xmm2
+	movdqu	%xmm0, (%rdi)
+	movdqu	%xmm2, 16(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	32(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(StrncpyExit33):
+	movdqu	(%rsi), %xmm0
+	movdqu	16(%rsi), %xmm2
+	mov	32(%rsi), %cl
+	movdqu	%xmm0, (%rdi)
+	movdqu	%xmm2, 16(%rdi)
+	mov	%cl, 32(%rdi)
+	ret
+
+	.p2align 4
+L(Fill0):
+	ret
+
+	.p2align 4
+L(Fill1):
+	mov	%dl, (%rdi)
+	ret
+
+	.p2align 4
+L(Fill2):
+	mov	%dx, (%rdi)
+	ret
+
+	.p2align 4
+L(Fill3):
+	mov	%edx, -1(%rdi)
+	ret
+
+	.p2align 4
+L(Fill4):
+	mov	%edx, (%rdi)
+	ret
+
+	.p2align 4
+L(Fill5):
+	mov	%edx, (%rdi)
+	mov	%dl, 4(%rdi)
+	ret
+
+	.p2align 4
+L(Fill6):
+	mov	%edx, (%rdi)
+	mov	%dx, 4(%rdi)
+	ret
+
+	.p2align 4
+L(Fill7):
+	mov	%rdx, -1(%rdi)
+	ret
+
+	.p2align 4
+L(Fill8):
+	mov	%rdx, (%rdi)
+	ret
+
+	.p2align 4
+L(Fill9):
+	mov	%rdx, (%rdi)
+	mov	%dl, 8(%rdi)
+	ret
+
+	.p2align 4
+L(Fill10):
+	mov	%rdx, (%rdi)
+	mov	%dx, 8(%rdi)
+	ret
+
+	.p2align 4
+L(Fill11):
+	mov	%rdx, (%rdi)
+	mov	%edx, 7(%rdi)
+	ret
+
+	.p2align 4
+L(Fill12):
+	mov	%rdx, (%rdi)
+	mov	%edx, 8(%rdi)
+	ret
+
+	.p2align 4
+L(Fill13):
+	mov	%rdx, (%rdi)
+	mov	%rdx, 5(%rdi)
+	ret
+
+	.p2align 4
+L(Fill14):
+	mov	%rdx, (%rdi)
+	mov	%rdx, 6(%rdi)
+	ret
+
+	.p2align 4
+L(Fill15):
+	movdqu	%xmm0, -1(%rdi)
+	ret
+
+	.p2align 4
+L(Fill16):
+	movdqu	%xmm0, (%rdi)
+	ret
+
+	.p2align 4
+L(CopyFrom1To16BytesUnalignedXmm2):
+	movdqu	%xmm2, (%rdi, %rcx)
+
+	.p2align 4
+L(CopyFrom1To16BytesXmmExit):
+	bsf	%rdx, %rdx
+	add	$15, %r8
+	add	%rcx, %rdi
+# ifdef USE_AS_STPCPY
+	lea	(%rdi, %rdx), %rax
+# endif
+	sub	%rdx, %r8
+	lea	1(%rdi, %rdx), %rdi
+
+	.p2align 4
+L(StrncpyFillTailWithZero):
+	pxor	%xmm0, %xmm0
+	xor	%rdx, %rdx
+	sub	$16, %r8
+	jbe	L(StrncpyFillExit)
+
+	movdqu	%xmm0, (%rdi)
+	add	$16, %rdi
+
+	mov	%rdi, %rsi
+	and	$0xf, %rsi
+	sub	%rsi, %rdi
+	add	%rsi, %r8
+	sub	$64, %r8
+	jb	L(StrncpyFillLess64)
+
+L(StrncpyFillLoopMovdqa):
+	movdqa	%xmm0, (%rdi)
+	movdqa	%xmm0, 16(%rdi)
+	movdqa	%xmm0, 32(%rdi)
+	movdqa	%xmm0, 48(%rdi)
+	add	$64, %rdi
+	sub	$64, %r8
+	jae	L(StrncpyFillLoopMovdqa)
+
+L(StrncpyFillLess64):
+	add	$32, %r8
+	jl	L(StrncpyFillLess32)
+	movdqa	%xmm0, (%rdi)
+	movdqa	%xmm0, 16(%rdi)
+	add	$32, %rdi
+	sub	$16, %r8
+	jl	L(StrncpyFillExit)
+	movdqa	%xmm0, (%rdi)
+	add	$16, %rdi
+	BRANCH_TO_JMPTBL_ENTRY (L(FillTable), %r8, 4)
+
+L(StrncpyFillLess32):
+	add	$16, %r8
+	jl	L(StrncpyFillExit)
+	movdqa	%xmm0, (%rdi)
+	add	$16, %rdi
+	BRANCH_TO_JMPTBL_ENTRY (L(FillTable), %r8, 4)
+
+L(StrncpyFillExit):
+	add	$16, %r8
+	BRANCH_TO_JMPTBL_ENTRY (L(FillTable), %r8, 4)
+
+	.p2align 4
+L(UnalignedLeaveCase2OrCase3):
+	test	%rdx, %rdx
+	jnz	L(Unaligned64LeaveCase2)
+L(Unaligned64LeaveCase3):
+	lea	64(%r8), %rcx
+	and	$-16, %rcx
+	add	$48, %r8
+	jl	L(CopyFrom1To16BytesCase3)
+	movdqu	%xmm4, (%rdi)
+	sub	$16, %r8
+	jb	L(CopyFrom1To16BytesCase3)
+	movdqu	%xmm5, 16(%rdi)
+	sub	$16, %r8
+	jb	L(CopyFrom1To16BytesCase3)
+	movdqu	%xmm6, 32(%rdi)
+	sub	$16, %r8
+	jb	L(CopyFrom1To16BytesCase3)
+	movdqu	%xmm7, 48(%rdi)
+# ifdef USE_AS_STPCPY
+	lea	64(%rdi), %rax
+# endif
+	ret
+
+	.p2align 4
+L(Unaligned64LeaveCase2):
+	xor	%rcx, %rcx
+	pcmpeqb	%xmm4, %xmm0
+	pmovmskb %xmm0, %rdx
+	add	$48, %r8
+	jle	L(CopyFrom1To16BytesCase2OrCase3)
+	test	%rdx, %rdx
+	jnz	L(CopyFrom1To16BytesUnalignedXmm4)
+
+	pcmpeqb	%xmm5, %xmm0
+	pmovmskb %xmm0, %rdx
+	movdqu	%xmm4, (%rdi)
+	add	$16, %rcx
+	sub	$16, %r8
+	jbe	L(CopyFrom1To16BytesCase2OrCase3)
+	test	%rdx, %rdx
+	jnz	L(CopyFrom1To16BytesUnalignedXmm5)
+
+	pcmpeqb	%xmm6, %xmm0
+	pmovmskb %xmm0, %rdx
+	movdqu	%xmm5, 16(%rdi)
+	add	$16, %rcx
+	sub	$16, %r8
+	jbe	L(CopyFrom1To16BytesCase2OrCase3)
+	test	%rdx, %rdx
+	jnz	L(CopyFrom1To16BytesUnalignedXmm6)
+
+	pcmpeqb	%xmm7, %xmm0
+	pmovmskb %xmm0, %rdx
+	movdqu	%xmm6, 32(%rdi)
+	lea	16(%rdi, %rcx), %rdi
+	lea	16(%rsi, %rcx), %rsi
+	bsf	%rdx, %rdx
+	cmp	%r8, %rdx
+	jb	L(CopyFrom1To16BytesExit)
+	BRANCH_TO_JMPTBL_ENTRY (L(ExitStrncpyTable), %r8, 4)
+
+	.p2align 4
+L(ExitZero):
+	mov	%rdi, %rax
+	ret
+
+# endif
+
+END (STRCPY)
+
+	.p2align 4
+	.section .rodata
+L(ExitTable):
+	.int	JMPTBL(L(Exit1), L(ExitTable))
+	.int	JMPTBL(L(Exit2), L(ExitTable))
+	.int	JMPTBL(L(Exit3), L(ExitTable))
+	.int	JMPTBL(L(Exit4), L(ExitTable))
+	.int	JMPTBL(L(Exit5), L(ExitTable))
+	.int	JMPTBL(L(Exit6), L(ExitTable))
+	.int	JMPTBL(L(Exit7), L(ExitTable))
+	.int	JMPTBL(L(Exit8), L(ExitTable))
+	.int	JMPTBL(L(Exit9), L(ExitTable))
+	.int	JMPTBL(L(Exit10), L(ExitTable))
+	.int	JMPTBL(L(Exit11), L(ExitTable))
+	.int	JMPTBL(L(Exit12), L(ExitTable))
+	.int	JMPTBL(L(Exit13), L(ExitTable))
+	.int	JMPTBL(L(Exit14), L(ExitTable))
+	.int	JMPTBL(L(Exit15), L(ExitTable))
+	.int	JMPTBL(L(Exit16), L(ExitTable))
+	.int	JMPTBL(L(Exit17), L(ExitTable))
+	.int	JMPTBL(L(Exit18), L(ExitTable))
+	.int	JMPTBL(L(Exit19), L(ExitTable))
+	.int	JMPTBL(L(Exit20), L(ExitTable))
+	.int	JMPTBL(L(Exit21), L(ExitTable))
+	.int	JMPTBL(L(Exit22), L(ExitTable))
+	.int    JMPTBL(L(Exit23), L(ExitTable))
+	.int	JMPTBL(L(Exit24), L(ExitTable))
+	.int	JMPTBL(L(Exit25), L(ExitTable))
+	.int	JMPTBL(L(Exit26), L(ExitTable))
+	.int	JMPTBL(L(Exit27), L(ExitTable))
+	.int	JMPTBL(L(Exit28), L(ExitTable))
+	.int	JMPTBL(L(Exit29), L(ExitTable))
+	.int	JMPTBL(L(Exit30), L(ExitTable))
+	.int	JMPTBL(L(Exit31), L(ExitTable))
+	.int	JMPTBL(L(Exit32), L(ExitTable))
+# ifdef USE_AS_STRNCPY
+L(ExitStrncpyTable):
+	.int	JMPTBL(L(StrncpyExit0), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit1), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit2), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit3), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit4), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit5), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit6), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit7), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit8), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit9), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit10), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit11), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit12), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit13), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit14), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit15), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit16), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit17), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit18), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit19), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit20), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit21), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit22), L(ExitStrncpyTable))
+	.int    JMPTBL(L(StrncpyExit23), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit24), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit25), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit26), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit27), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit28), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit29), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit30), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit31), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit32), L(ExitStrncpyTable))
+	.int	JMPTBL(L(StrncpyExit33), L(ExitStrncpyTable))
+	.p2align 4
+L(FillTable):
+	.int	JMPTBL(L(Fill0), L(FillTable))
+	.int	JMPTBL(L(Fill1), L(FillTable))
+	.int	JMPTBL(L(Fill2), L(FillTable))
+	.int	JMPTBL(L(Fill3), L(FillTable))
+	.int	JMPTBL(L(Fill4), L(FillTable))
+	.int	JMPTBL(L(Fill5), L(FillTable))
+	.int	JMPTBL(L(Fill6), L(FillTable))
+	.int	JMPTBL(L(Fill7), L(FillTable))
+	.int	JMPTBL(L(Fill8), L(FillTable))
+	.int	JMPTBL(L(Fill9), L(FillTable))
+	.int	JMPTBL(L(Fill10), L(FillTable))
+	.int	JMPTBL(L(Fill11), L(FillTable))
+	.int	JMPTBL(L(Fill12), L(FillTable))
+	.int	JMPTBL(L(Fill13), L(FillTable))
+	.int	JMPTBL(L(Fill14), L(FillTable))
+	.int	JMPTBL(L(Fill15), L(FillTable))
+	.int	JMPTBL(L(Fill16), L(FillTable))
+# endif
+#endif