127 lines
3.7 KiB
Java
127 lines
3.7 KiB
Java
/*
|
|
* Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* This code is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 only, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* 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).
|
|
*
|
|
* You should have received a copy of the GNU General Public License version
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*/
|
|
|
|
/**
|
|
* @test
|
|
* @bug 6589834
|
|
* @summary deoptimization problem with -XX:+DeoptimizeALot
|
|
*
|
|
* @run main Test_ia32
|
|
*/
|
|
|
|
/***************************************************************************************
|
|
NOTE: The bug shows up (with several "Bug!" message) even without the
|
|
flag -XX:+DeoptimizeALot. In a debug build, you may want to try
|
|
the flags -XX:+VerifyStack and -XX:+DeoptimizeALot to get more information.
|
|
****************************************************************************************/
|
|
import java.lang.reflect.Constructor;
|
|
|
|
public class Test_ia32 {
|
|
|
|
public static int NUM_THREADS = 100;
|
|
|
|
public static int CLONE_LENGTH = 1000;
|
|
|
|
public static void main(String[] args) throws InterruptedException, ClassNotFoundException {
|
|
|
|
Reflector[] threads = new Reflector[NUM_THREADS];
|
|
for (int i = 0; i < threads.length; i++) {
|
|
threads[i] = new Reflector();
|
|
threads[i].start();
|
|
}
|
|
|
|
System.out.println("Give Reflector.run() some time to compile...");
|
|
Thread.sleep(5000);
|
|
|
|
System.out.println("Load RMISecurityException causing run() deoptimization");
|
|
ClassLoader.getSystemClassLoader().loadClass("java.rmi.RMISecurityException");
|
|
|
|
for (Reflector thread : threads)
|
|
thread.requestStop();
|
|
|
|
for (Reflector thread : threads)
|
|
try {
|
|
thread.join();
|
|
} catch (InterruptedException e) {
|
|
System.out.println(e);
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
class Reflector extends Thread {
|
|
|
|
volatile boolean _doSpin = true;
|
|
|
|
Test_ia32[] _tests;
|
|
|
|
Reflector() {
|
|
_tests = new Test_ia32[Test_ia32.CLONE_LENGTH];
|
|
for (int i = 0; i < _tests.length; i++) {
|
|
_tests[i] = new Test_ia32();
|
|
}
|
|
}
|
|
|
|
static int g(int i1, int i2, Test_ia32[] arr, int i3, int i4) {
|
|
|
|
if (!(i1==1 && i2==2 && i3==3 && i4==4)) {
|
|
System.out.println("Bug!");
|
|
}
|
|
|
|
return arr.length;
|
|
}
|
|
|
|
static int f(Test_ia32[] arr) {
|
|
return g(1, 2, arr.clone(), 3, 4);
|
|
}
|
|
|
|
@Override
|
|
public void run() {
|
|
Constructor[] ctrs = null;
|
|
Class<Test_ia32> klass = Test_ia32.class;
|
|
try {
|
|
ctrs = klass.getConstructors();
|
|
} catch (SecurityException e) {
|
|
System.out.println(e);
|
|
}
|
|
|
|
try {
|
|
while (_doSpin) {
|
|
if (f(_tests) < 0)
|
|
System.out.println("return value usage");
|
|
}
|
|
} catch (NullPointerException e) {
|
|
e.printStackTrace();
|
|
}
|
|
|
|
System.out.println(this + " - stopped.");
|
|
}
|
|
|
|
public void requestStop() {
|
|
System.out.println(this + " - stop requested.");
|
|
_doSpin = false;
|
|
}
|
|
|
|
}
|