TestUseRTMDeoptOptionOnSupportedConfig.java

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/**
 * @test
 * @bug 8031320
 * @summary Verify UseRTMDeopt option processing on CPUs with rtm support
 *          when rtm locking is supported by VM.
 * @library /test/lib /
 * @modules java.base/jdk.internal.misc
 *          java.management
 * @requires vm.flagless
 * @requires vm.rtm.cpu & vm.rtm.compiler
 * @run driver compiler.rtm.cli.TestUseRTMDeoptOptionOnSupportedConfig
 */

package compiler.rtm.cli;

import jdk.test.lib.process.ExitCode;
import jdk.test.lib.cli.CommandLineOptionTest;

public class TestUseRTMDeoptOptionOnSupportedConfig {
    private static final String DEFAULT_VALUE = "false";

    public void runTestCases() throws Throwable {
        String shouldPassMessage = " JVM should startup with option '"
                + "-XX:+UseRTMDeopt' without any warnings";
        // verify that option could be turned on
        CommandLineOptionTest.verifySameJVMStartup(
                null, null, shouldPassMessage, shouldPassMessage, ExitCode.OK,
                "-XX:+UseRTMDeopt");
        shouldPassMessage = " JVM should startup with option '"
                + "-XX:-UseRTMDeopt' without any warnings";
        // verify that option could be turned off
        CommandLineOptionTest.verifySameJVMStartup(
                null, null, shouldPassMessage, shouldPassMessage, ExitCode.OK,
                "-XX:-UseRTMDeopt");
        String defValMessage = String.format("UseRTMDeopt should have '%s'"
                                    + "default value",
                        TestUseRTMDeoptOptionOnSupportedConfig.DEFAULT_VALUE);
        // verify default value
        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMDeopt",
                TestUseRTMDeoptOptionOnSupportedConfig.DEFAULT_VALUE,
                defValMessage);
        // verify default value
        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMDeopt",
                TestUseRTMDeoptOptionOnSupportedConfig.DEFAULT_VALUE,
                defValMessage,
                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                "-XX:+UseRTMLocking");
        // verify that option is off when UseRTMLocking is off
        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMDeopt",
                "false", "UseRTMDeopt should be off when UseRTMLocking is off",
                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                "-XX:-UseRTMLocking", "-XX:+UseRTMDeopt");
        // verify that option could be turned on
        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMDeopt", "true",
                "UseRTMDeopt should be on when UseRTMLocking is on and "
                        + "'-XX:+UseRTMDeopt' flag set",
                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,
                "-XX:+UseRTMLocking", "-XX:+UseRTMDeopt");
    }

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