TestUseRTMDeopt.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/**
 * @test
 * @bug 8031320
 * @summary Verify that UseRTMDeopt affects uncommon trap installation in
 *          compiled methods with synchronized block.
 * @library /test/lib /
 * @modules java.base/jdk.internal.misc
 *          java.management
 * @requires vm.rtm.cpu & vm.rtm.compiler
 * @build sun.hotspot.WhiteBox
 * @run driver jdk.test.lib.helpers.ClassFileInstaller sun.hotspot.WhiteBox
 * @run main/othervm/native -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
 *                          -XX:+WhiteBoxAPI
 *                          compiler.rtm.locking.TestUseRTMDeopt
 */

package compiler.rtm.locking;

import compiler.testlibrary.rtm.AbortProvoker;
import compiler.testlibrary.rtm.AbortType;
import compiler.testlibrary.rtm.RTMTestBase;
import jdk.test.lib.Asserts;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.cli.CommandLineOptionTest;

/**
 * Test verifies that usage of UseRTMDeopt option affects uncommon traps usage
 * for methods that use locking.
 */
public class TestUseRTMDeopt {

    protected void runTestCases() throws Throwable {
        verifyUseRTMDeopt(false);
        verifyUseRTMDeopt(true);
    }

    private void verifyUseRTMDeopt(boolean useRTMDeopt) throws Throwable {
        AbortProvoker provoker = AbortType.XABORT.provoker();
        String logFileName = String.format("rtm_%s_deopt.xml",
                useRTMDeopt ? "use" : "no");

        OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
                logFileName,
                provoker,
                CommandLineOptionTest.prepareBooleanFlag("UseRTMDeopt",
                        useRTMDeopt),
                AbortProvoker.class.getName(),
                AbortType.XABORT.toString()
        );

        outputAnalyzer.shouldHaveExitValue(0);

        int expectedUncommonTraps = useRTMDeopt ? 1 : 0;
        int installedUncommonTraps
                = RTMTestBase.installedRTMStateChangeTraps(logFileName);

        Asserts.assertEQ(expectedUncommonTraps, installedUncommonTraps,
                String.format("Expected to find %d uncommon traps "
                              + "installed with reason rtm_state_change.",
                        expectedUncommonTraps));
    }

    public static void main(String args[]) throws Throwable {
        new TestUseRTMDeopt().runTestCases();
    }
}