/* Highly optimized version for ix86, x>=6.

   Copyright (C) 1999-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.

   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>

#include "asm-syntax.h"

#define PARMS	4		/* no space for saved regs */

#define STR1	PARMS

#define STR2	STR1+4

        .text

ENTRY (strcmp)

	movl	STR1(%esp), %ecx

	movl	STR2(%esp), %edx

L(oop):	movb	(%ecx), %al

	cmpb	(%edx), %al

	jne	L(neq)

	incl	%ecx

	incl	%edx

	testb	%al, %al

	jnz	L(oop)

	xorl	%eax, %eax

	/* when strings are equal, pointers rest one beyond

	   the end of the NUL terminators.  */

	ret

L(neq):	movl	$1, %eax

	movl	$-1, %ecx

	cmovbl	%ecx, %eax

	ret

END (strcmp)

libc_hidden_builtin_def (strcmp)