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

 *

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 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

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 * 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).

 *

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

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import java.io.File;

import java.util.ArrayList;

import java.util.Collections;

/*

 * @test

 * @bug 8050079

 * @summary Compiles a monomorphic call to finalizeObject() on a modified java.lang.Object to test C1 CHA.

 * @library /testlibrary

 * @modules java.base/sun.misc

 *          java.management

 * @compile -XDignore.symbol.file java/lang/Object.java TestMonomorphicObjectCall.java

 * @run main TestMonomorphicObjectCall

 */

public class TestMonomorphicObjectCall {

    final static String testClasses = System.getProperty("test.classes") + File.separator;

    private static void callFinalize(Object object) throws Throwable {

        // Call modified version of java.lang.Object::finalize() that is

        // not overridden by any subclass. C1 CHA should mark the call site

        // as monomorphic and inline the method.

        object.finalizeObject();

    }

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

        if (args.length == 0) {

            // Execute new instance with modified java.lang.Object

            executeTestJvm();

        } else {

            // Trigger compilation of 'callFinalize'

            callFinalize(new Object());

        }

    }

    public static void executeTestJvm() throws Throwable {

        // Execute test with modified version of java.lang.Object

        // in -Xbootclasspath.

        String[] vmOpts = new String[] {

                "-Xbootclasspath/p:" + testClasses,

                "-Xcomp",

                "-XX:+IgnoreUnrecognizedVMOptions",

                "-XX:-VerifyDependencies",

                "-XX:CompileOnly=TestMonomorphicObjectCall::callFinalize",

                "-XX:CompileOnly=Object::finalizeObject",

                "-XX:TieredStopAtLevel=1",

                TestMonomorphicObjectCall.class.getName(),

                "true"};

        OutputAnalyzer output = ProcessTools.executeTestJvm(vmOpts);

        output.shouldHaveExitValue(0);

    }

}