/*

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 * 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.

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import java.io.File;

import java.nio.file.Files;

import java.nio.file.Paths;

import java.util.ArrayList;

import java.util.Collections;

import jdk.test.lib.*;

/*

 * @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

 *          java.base/jdk.internal

 * @ignore 8132924

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

 * @run main TestMonomorphicObjectCall

 */

public class TestMonomorphicObjectCall {

    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) {

            byte[] bytecode = Files.readAllBytes(Paths.get(System.getProperty("test.classes") + File.separator +

                "java" + File.separator + "lang" + File.separator + "Object.class"));

            ClassFileInstaller.writeClassToDisk("java.lang.Object", bytecode, "mods/java.base");

            // 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[] {

                "-Xpatch:mods",

                "-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);

    }

}