/* SPDX-License-Identifier: GPL-2.0 */
/* Sparc optimized memcmp code.
 *
 * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
 * Copyright (C) 2000, 2008 David S. Miller (davem@davemloft.net)
 */

#include <linux/export.h>
#include <linux/linkage.h>
#include <asm/asm.h>

        .text
ENTRY(memcmp)
        cmp     %o2, 0
1:      BRANCH32(be, pn, 2f)
         nop
        ldub    [%o0], %g7
        ldub    [%o1], %g3
        sub     %o2, 1, %o2
        add     %o0, 1, %o0
        add     %o1, 1, %o1
        subcc   %g7, %g3, %g3
        BRANCH32(be, pt, 1b)
         cmp    %o2, 0
        retl
         mov    %g3, %o0
2:      retl
         mov    0, %o0
ENDPROC(memcmp)
EXPORT_SYMBOL(memcmp)