Mercurial > hg > truffle
annotate test/compiler/6589834/Test_ia32.java @ 3237:399aa66d375e
Fixed a bug in which the valueEquals method was misused. The method does only check the equality of the node data and not full GVN equality by taking inputs and successors into account.
| author | Thomas Wuerthinger <thomas@wuerthinger.net> |
|---|---|
| date | Wed, 27 Jul 2011 14:16:38 -0700 |
| parents | c18cbe5936b8 |
| children | 7369298bec7e |
| rev | line source |
|---|---|
| 730 | 1 /* |
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2 * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved. |
| 730 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 730 | 22 */ |
| 23 | |
| 24 /** | |
| 25 * @test | |
| 26 * @bug 6589834 | |
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6833951: Extra ":" Causes Testcase in CR 6589834 "Parse Exception: Invalid tag: summary:"
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27 * @summary deoptimization problem with -XX:+DeoptimizeALot |
| 730 | 28 * |
| 29 * @run main/othervm -server Test_ia32 | |
| 30 */ | |
| 31 | |
| 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; | |
| 38 | |
| 39 public class Test_ia32 { | |
| 40 | |
| 41 public static int NUM_THREADS = 100; | |
| 42 | |
| 43 public static int CLONE_LENGTH = 1000; | |
| 44 | |
| 45 public static void main(String[] args) throws InterruptedException, ClassNotFoundException { | |
| 46 | |
| 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 } | |
| 52 | |
| 53 System.out.println("Give Reflector.run() some time to compile..."); | |
| 54 Thread.sleep(5000); | |
| 55 | |
| 56 System.out.println("Load RMISecurityException causing run() deoptimization"); | |
| 57 ClassLoader.getSystemClassLoader().loadClass("java.rmi.RMISecurityException"); | |
| 58 | |
| 59 for (Reflector thread : threads) | |
| 60 thread.requestStop(); | |
| 61 | |
| 62 for (Reflector thread : threads) | |
| 63 try { | |
| 64 thread.join(); | |
| 65 } catch (InterruptedException e) { | |
| 66 System.out.println(e); | |
| 67 } | |
| 68 | |
| 69 } | |
| 70 | |
| 71 } | |
| 72 | |
| 73 class Reflector extends Thread { | |
| 74 | |
| 75 volatile boolean _doSpin = true; | |
| 76 | |
| 77 Test_ia32[] _tests; | |
| 78 | |
| 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 } | |
| 85 | |
| 86 static int g(int i1, int i2, Test_ia32[] arr, int i3, int i4) { | |
| 87 | |
| 88 if (!(i1==1 && i2==2 && i3==3 && i4==4)) { | |
| 89 System.out.println("Bug!"); | |
| 90 } | |
| 91 | |
| 92 return arr.length; | |
| 93 } | |
| 94 | |
| 95 static int f(Test_ia32[] arr) { | |
| 96 return g(1, 2, arr.clone(), 3, 4); | |
| 97 } | |
| 98 | |
| 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 } | |
| 108 | |
| 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 } | |
| 117 | |
| 118 System.out.println(this + " - stopped."); | |
| 119 } | |
| 120 | |
| 121 public void requestStop() { | |
| 122 System.out.println(this + " - stop requested."); | |
| 123 _doSpin = false; | |
| 124 } | |
| 125 | |
| 126 } |