/*

 * Copyright (c) 2015, 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 8074676

 * @summary after guards in Arrays.copyOf() intrinsic, control may become top

 *

 * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement

 *                   compiler.arraycopy.TestArrayCopyOfStopped

 */

package compiler.arraycopy;

import java.util.Arrays;

public class TestArrayCopyOfStopped {

    static class A {

    }

    static class B {

    }

    static final B[] array_of_bs = new B[10];

    static final A[] array_of_as = new A[10];

    static Object[] m1_helper(Object[] array, boolean flag) {

        if (flag) {

            return Arrays.copyOf(array, 10, A[].class);

        }

        return null;

    }

    static Object[] m1(boolean flag) {

        return m1_helper(array_of_bs, flag);

    }

    public static void main(String[] args) {

        for (int i = 0; i < 20000; i++) {

            m1_helper(array_of_as, (i%2) == 0);

        }

        for (int i = 0; i < 20000; i++) {

            m1(false);

        }

    }

}