1 /*
   2  * Copyright (c) 2014, 2015, 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 /*
  26  * @test UnexpectedDeoptimizationTest
  27  * @summary stressing code cache by forcing unexpected deoptimizations
  28  * @library /testlibrary /test/lib /
  29  * @modules java.base/jdk.internal.misc
  30  *          java.management
  31  *
  32  * @build compiler.codecache.stress.UnexpectedDeoptimizationTest
  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.UnexpectedDeoptimizationTest
  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.UnexpectedDeoptimizationTest
  45  */
  46 
  47 package compiler.codecache.stress;
  48 
  49 public class UnexpectedDeoptimizationTest implements Runnable {
  50 
  51     public static void main(String[] args) {
  52         new CodeCacheStressRunner(new UnexpectedDeoptimizationTest()).runTest();
  53     }
  54 
  55     @Override
  56     public void run() {
  57         Helper.WHITE_BOX.deoptimizeFrames(Helper.RNG.nextBoolean());
  58     }
  59 
  60 }