/*

 * Copyright (c) 2013, 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 8000968

 * @key regression

 * @summary NPG: UseCompressedClassPointers asserts with ObjectAlignmentInBytes=32

 * @library /testlibrary

 */

import com.oracle.java.testlibrary.*;

public class CompressedKlassPointerAndOops {

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

        if (!Platform.is64bit()) {

            // Can't test this on 32 bit, just pass

            System.out.println("Skipping test on 32bit");

            return;

        }

        runWithAlignment(16);

        runWithAlignment(32);

        runWithAlignment(64);

        runWithAlignment(128);

    }

    private static void runWithAlignment(int alignment) throws Exception {

        ProcessBuilder pb;

        OutputAnalyzer output;

        pb = ProcessTools.createJavaProcessBuilder(

            "-XX:+UseCompressedClassPointers",

            "-XX:+UseCompressedOops",

            "-XX:ObjectAlignmentInBytes=" + alignment,

            "-version");

        output = new OutputAnalyzer(pb.start());

        output.shouldHaveExitValue(0);

    }

}