1 /*

     2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /*

    25  * @test UnexpectedDeoptimizationAllTest

    26  * @key stress

    27  * @summary stressing code cache by forcing unexpected deoptimizations of all methods

    28  * @library /test/lib /

    29  * @modules java.base/jdk.internal.misc

    30  *          java.management

    31  *

    32  * @build sun.hotspot.WhiteBox compiler.codecache.stress.Helper compiler.codecache.stress.TestCaseImpl

    33  * @run driver ClassFileInstaller sun.hotspot.WhiteBox

    34  *                                sun.hotspot.WhiteBox$WhiteBoxPermission

    35  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions

    36  *                   -XX:+WhiteBoxAPI -XX:-DeoptimizeRandom

    37  *                   -XX:CompileCommand=dontinline,compiler.codecache.stress.Helper$TestCase::method

    38  *                   -XX:-SegmentedCodeCache

    39  *                   compiler.codecache.stress.UnexpectedDeoptimizationAllTest

    40  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions

    41  *                   -XX:+WhiteBoxAPI -XX:-DeoptimizeRandom

    42  *                   -XX:CompileCommand=dontinline,compiler.codecache.stress.Helper$TestCase::method

    43  *                   -XX:+SegmentedCodeCache

    44  *                   compiler.codecache.stress.UnexpectedDeoptimizationAllTest

    45  */

    46 

    47 package compiler.codecache.stress;

    48 

    49 public class UnexpectedDeoptimizationAllTest implements Runnable {

    50 

    51     public static void main(String[] args) {

    52         new CodeCacheStressRunner(new UnexpectedDeoptimizationAllTest()).runTest();

    53     }

    54 

    55     @Override

    56     public void run() {

    57         Helper.WHITE_BOX.deoptimizeAll();

    58         try {

    59             Thread.sleep(10);

    60         } catch (Exception e) {

    61         }

    62     }

    63 

    64 }