001/*
002 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.compiler.test.deopt;
024
025import org.junit.*;
026
027import com.oracle.graal.compiler.test.*;
028import com.oracle.graal.compiler.test.ea.EATestBase.TestClassObject;
029
030/**
031 * In the following tests, we try to deoptimize out of synchronized methods.
032 */
033public class SynchronizedMethodDeoptimizationTest extends GraalCompilerTest {
034
035    public static final TestClassObject testObject = null;
036
037    public static synchronized Object testMethodSynchronized(Object o) {
038        if (o == null) {
039            // this branch will always deoptimize
040            return testObject.x;
041        }
042        return o;
043    }
044
045    @Test
046    public void test1() {
047        test("testMethodSynchronized", "test");
048        test("testMethodSynchronized", (Object) null);
049    }
050}