view test/compiler/whitebox/DeoptimizeMethodTest.java @ 12986:1b422ef5288a

8025728: Missing volatile specifier for field G1AllocRegion::_alloc_region Summary: The field G1AllocRegion::_alloc_region needs to be declared volatile as it is used with that intention. Otherwise the compiler may generate the code that reloads the value which might have changed in the meantime, leading to spurious crashes. Reviewed-by: iveresov, simonis, tschatzl Contributed-by: Axel Siebenborn <axel.siebenborn@sap.com>
author tschatzl
date Wed, 23 Oct 2013 10:23:06 +0200
parents 303826f477c6
children f9a4b59ae350
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/*
 * 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 DeoptimizeMethodTest
 * @bug 8006683 8007288 8022832
 * @library /testlibrary /testlibrary/whitebox
 * @build DeoptimizeMethodTest
 * @run main ClassFileInstaller sun.hotspot.WhiteBox
 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,TestCase$Helper::* DeoptimizeMethodTest
 * @summary testing of WB::deoptimizeMethod()
 * @author igor.ignatyev@oracle.com
 */
public class DeoptimizeMethodTest extends CompilerWhiteBoxTest {

    public static void main(String[] args) throws Exception {
        for (TestCase test : TestCase.values()) {
            new DeoptimizeMethodTest(test).runTest();
        }
    }

    public DeoptimizeMethodTest(TestCase testCase) {
        super(testCase);
        // to prevent inlining of #method
        WHITE_BOX.testSetDontInlineMethod(method, true);
    }

    /**
     * Tests {@code WB::deoptimizeMethod()} by calling it after
     * compilation and checking that method isn't compiled.
     *
     * @throws Exception if one of the checks fails.
     */
    @Override
    protected void test() throws Exception {
        if (testCase.isOsr && CompilerWhiteBoxTest.MODE.startsWith(
                "compiled ")) {
          System.err.printf("Warning: %s is not applicable in %s%n",
                testCase.name(), CompilerWhiteBoxTest.MODE);
          return;
        }
        compile();
        checkCompiled();
        deoptimize();
        checkNotCompiled();
    }
}