jdk8-mips64-public/hotspot: test/compiler/6589834/Test

8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on
Summary: call rtm_deopt() only if there were no compilation bailouts before.
Reviewed-by: kvn

     1 /*

     2  * Copyright (c) 2009, 2013, 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  */

    24 /**

    25  * @test

    26  * @bug 6589834

    27  * @summary deoptimization problem with -XX:+DeoptimizeALot

    28  *

    29  * @run main Test_ia32

    30  */

    32 /***************************************************************************************

    33 NOTE: The bug shows up (with several "Bug!" message) even without the

    34       flag -XX:+DeoptimizeALot. In a debug build, you may want to try

    35       the flags -XX:+VerifyStack and -XX:+DeoptimizeALot to get more information.

    36 ****************************************************************************************/

    37 import java.lang.reflect.Constructor;

    39 public class Test_ia32 {

    41     public static int NUM_THREADS = 100;

    43     public static int CLONE_LENGTH = 1000;

    45     public static void main(String[] args) throws InterruptedException, ClassNotFoundException {

    47         Reflector[] threads = new Reflector[NUM_THREADS];

    48         for (int i = 0; i < threads.length; i++) {

    49             threads[i] = new Reflector();

    50             threads[i].start();

    51         }

    53         System.out.println("Give Reflector.run() some time to compile...");

    54         Thread.sleep(5000);

    56         System.out.println("Load RMISecurityException causing run() deoptimization");

    57         ClassLoader.getSystemClassLoader().loadClass("java.rmi.RMISecurityException");

    59         for (Reflector thread : threads)

    60             thread.requestStop();

    62         for (Reflector thread : threads)

    63             try {

    64                 thread.join();

    65             } catch (InterruptedException e) {

    66                 System.out.println(e);

    67             }

    69     }

    71 }

    73 class Reflector extends Thread {

    75     volatile boolean _doSpin = true;

    77     Test_ia32[] _tests;

    79     Reflector() {

    80         _tests = new Test_ia32[Test_ia32.CLONE_LENGTH];

    81         for (int i = 0; i < _tests.length; i++) {

    82             _tests[i] = new Test_ia32();

    83         }

    84     }

    86     static int g(int i1, int i2, Test_ia32[] arr, int i3, int i4) {

    88         if (!(i1==1 && i2==2 && i3==3 && i4==4)) {

    89             System.out.println("Bug!");

    90         }

    92         return arr.length;

    93     }

    95     static int f(Test_ia32[] arr) {

    96         return g(1, 2, arr.clone(), 3, 4);

    97     }

    99     @Override

   100     public void run() {

   101         Constructor[] ctrs = null;

   102         Class<Test_ia32> klass = Test_ia32.class;

   103         try {

   104             ctrs = klass.getConstructors();

   105         } catch (SecurityException e) {

   106             System.out.println(e);

   107         }

   109         try {

   110             while (_doSpin) {

   111                 if (f(_tests) < 0)

   112                     System.out.println("return value usage");

   113             }

   114         } catch (NullPointerException e) {

   115             e.printStackTrace();

   116         }

   118         System.out.println(this + " - stopped.");

   119     }

   121     public void requestStop() {

   122         System.out.println(this + " - stop requested.");

   123         _doSpin = false;

   124     }

   126 }

test/compiler/6589834/Test_ia32.java@dbb05f6d93c4

test/compiler/6589834/Test_ia32.java

Mercurial > jdk8-mips64-public > hotspot / file revision

test/compiler/6589834/Test_ia32.java@dbb05f6d93c4

test/compiler/6589834/Test_ia32.java