/*

 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code 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 General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/**

 * @test

 * @bug 7041100

 * @summary The load in String.equals intrinsic executed before null check

 *

 * @run main/othervm -Xbatch compiler.c2.Test7041100 abc def

 */

package compiler.c2;

public class Test7041100 {

    static String n = null;

    public static void main(String[] args) throws Exception {

        for (int i = 0; i < 10000; i++) {

            stringEQ(args[0], args[1]);

            stringEQ(args[0], args[0]);

            stringEQ(args[0], n);

            stringEQ(n, args[0]);

        }

    }

    public static boolean stringEQ(String a, String b) {

        if (a == b)

            return true;

        if (a == null || b == null)

            return false;

        else

            return a.equals(b);

    }

}