/*

 * Copyright (c) 2019, Red Hat, Inc. 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 8219335

 * @summary "failed: unexpected type" assert failure in ConnectionGraph::split_unique_types() with unsafe accesses

 *

 * @modules java.base/jdk.internal.misc

 * @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation -XX:-TieredCompilation -Xcomp -XX:CompileOnly=MaybeOffHeapUnsafeAccessToNewObject::test1 -XX:+IgnoreUnrecognizedVMOptions -XX:+AlwaysIncrementalInline MaybeOffHeapUnsafeAccessToNewObject

 */

import java.lang.reflect.Field;

import jdk.internal.misc.Unsafe;

public class MaybeOffHeapUnsafeAccessToNewObject {

    public volatile int f_int = -1;

    public static Unsafe unsafe = Unsafe.getUnsafe();

    public static final long f_int_off;

    static {

        Field f_int_field = null;

        try {

            f_int_field = MaybeOffHeapUnsafeAccessToNewObject.class.getField("f_int");

        } catch (Exception e) {

            System.out.println("reflection failed " + e);

            e.printStackTrace();

        }

        f_int_off = unsafe.objectFieldOffset(f_int_field);

    }

    static public void main(String[] args) {

        MaybeOffHeapUnsafeAccessToNewObject o = new MaybeOffHeapUnsafeAccessToNewObject();

        test1();

    }

    static Object test1_helper1(Object t) {

        return t;

    }

    static long test1_helper2(long off) {

        return off;

    }

    static int test1() {

        MaybeOffHeapUnsafeAccessToNewObject t = new MaybeOffHeapUnsafeAccessToNewObject();

        Object o = test1_helper1(t);

        long off = test1_helper2(f_int_off);

        return unsafe.getInt(o, off);

    }

}