test/hotspot/jtreg/compiler/codecache/stress/UnexpectedDeoptimizationTest.java
author chagedorn
Wed, 02 Oct 2019 08:27:17 +0200
changeset 58438 1181f58f30e2
parent 54307 df62ea1da6ad
permissions -rw-r--r--
8231626: DeoptimizeRandom should not be a product flag Summary: The DeoptimizeRandom flag is changed to develop since it has no effect in production. Reviewed-by: neliasso, thartmann

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 */

/*
 * @test UnexpectedDeoptimizationTest
 * @key stress
 * @summary stressing code cache by forcing unexpected deoptimizations
 * @library /test/lib /
 * @modules java.base/jdk.internal.misc
 *          java.management
 *
 * @build sun.hotspot.WhiteBox compiler.codecache.stress.Helper compiler.codecache.stress.TestCaseImpl
 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
 *                                sun.hotspot.WhiteBox$WhiteBoxPermission
 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
 *                   -XX:+WhiteBoxAPI
 *                   -XX:+IgnoreUnrecognizedVMOptions -XX:-DeoptimizeRandom
 *                   -XX:CompileCommand=dontinline,compiler.codecache.stress.Helper$TestCase::method
 *                   -XX:-SegmentedCodeCache
 *                   compiler.codecache.stress.UnexpectedDeoptimizationTest
 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
 *                   -XX:+WhiteBoxAPI
 *                   -XX:+IgnoreUnrecognizedVMOptions -XX:-DeoptimizeRandom
 *                   -XX:CompileCommand=dontinline,compiler.codecache.stress.Helper$TestCase::method
 *                   -XX:+SegmentedCodeCache
 *                   compiler.codecache.stress.UnexpectedDeoptimizationTest
 */

package compiler.codecache.stress;

public class UnexpectedDeoptimizationTest implements Runnable {

    public static void main(String[] args) {
        new CodeCacheStressRunner(new UnexpectedDeoptimizationTest()).runTest();
    }

    @Override
    public void run() {
        Helper.WHITE_BOX.deoptimizeFrames(Helper.RNG.nextBoolean());
    }

}