/* Determine the length of a string.

   For SPARC v7.

   Copyright (C) 1996-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Jakub Jelinek <jj@ultra.linux.cz> and

                  David S. Miller <davem@davemloft.net>.

   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/>.  */

#include <sysdep.h>

	.text

	.align		4

ENTRY(strlen)

	mov	%o0, %o1

	andn	%o0, 0x3, %o0

	ld	[%o0], %o5

	and	%o1, 0x3, %g1

	mov	-1, %g5

	sethi	%hi(0x01010101), %o2

	sll	%g1, 3, %g1

	or	%o2, %lo(0x01010101), %o2

	srl	%g5, %g1, %g2

	orn	%o5, %g2, %o5

	sll	%o2, 7, %o3

10:	add	%o0, 4, %o0

	andn	%o3, %o5, %g1

	sub	%o5, %o2, %g2

	andcc	%g1, %g2, %g0

	be,a	10b

	 ld	[%o0], %o5

	srl	%o5, 24, %g1

	andcc	%g1, 0xff, %g0

	be	90f

	 sub	%o0, 4, %o0

	srl	%o5, 16, %g2

	andcc	%g2, 0xff, %g0

	be	90f

	 add	%o0, 1, %o0

	srl	%o5, 8, %g1

	andcc	%g1, 0xff, %g0

	be	90f

	 add	%o0, 1, %o0

	add	%o0, 1, %o0

90:	retl

	 sub	%o0, %o1, %o0

END(strlen)

libc_hidden_builtin_def (strlen)