/*

 * Copyright (c) 2011, 2019, 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

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package org.graalvm.compiler.core.test.deopt;

import org.graalvm.compiler.core.test.GraalCompilerTest;

import org.graalvm.compiler.core.test.ea.EATestBase.TestClassObject;

import org.graalvm.compiler.serviceprovider.JavaVersionUtil;

import org.junit.Assume;

import org.junit.Test;

/**

 * In the following tests, we try to deoptimize out of synchronized methods.

 */

public class SynchronizedMethodDeoptimizationTest extends GraalCompilerTest {

    public static final TestClassObject testObject = null;

    public static synchronized Object testMethodSynchronized(Object o) {

        if (o == null) {

            // this branch will always deoptimize

            return testObject.x;

        }

        return o;

    }

    @Test

    public void test1() {

        // https://bugs.openjdk.java.net/browse/JDK-8182755

        Assume.assumeTrue(JavaVersionUtil.JAVA_SPEC <= 8);

        test("testMethodSynchronized", "test");

        test("testMethodSynchronized", (Object) null);

    }

}