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/* Return the pointer to the end of string, using SSE4.2
Copyright (C) 2009 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. */
#include <sysdep.h>
#include "asm-syntax.h"
.section .text.sse4.2,"ax",@progbits
ENTRY (__strend_sse4)
pxor %xmm2, %xmm2
movq %rdi, %rcx
andq $~15, %rdi
movdqa %xmm2, %xmm1
pcmpeqb (%rdi), %xmm2
orl $0xffffffff, %esi
subq %rdi, %rcx
shll %cl, %esi
pmovmskb %xmm2, %edx
andl %esi, %edx
jnz 1f
2: pcmpistri $0x08, 16(%rdi), %xmm1
leaq 16(%rdi), %rdi
jnz 2b
leaq (%rdi,%rcx), %rax
ret
1: bsfl %edx, %eax
addq %rdi, %rax
ret
END (__strend_sse4)
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