Mercurial > jdk8-mips64-public > hotspot / annotate
test/compiler/6589834/Test_ia32.java@710a3c8b516e (annotated)
test/compiler/6589834/Test_ia32.java
Tue, 08 Aug 2017 15:57:29 +0800
- author
- aoqi
- date
- Tue, 08 Aug 2017 15:57:29 +0800
- changeset 6876
- 710a3c8b516e
- parent 6198
- 55fb97c4c58d
- parent 0
- f90c822e73f8
- permissions
- -rw-r--r--
merge
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | */ |
| aoqi@0 | 23 | |
| aoqi@0 | 24 | /** |
| aoqi@0 | 25 | * @test |
| aoqi@0 | 26 | * @bug 6589834 |
| aoqi@0 | 27 | * @summary deoptimization problem with -XX:+DeoptimizeALot |
| aoqi@0 | 28 | * |
| aoqi@0 | 29 | * @run main Test_ia32 |
| aoqi@0 | 30 | */ |
| aoqi@0 | 31 | |
| aoqi@0 | 32 | /*************************************************************************************** |
| aoqi@0 | 33 | NOTE: The bug shows up (with several "Bug!" message) even without the |
| aoqi@0 | 34 | flag -XX:+DeoptimizeALot. In a debug build, you may want to try |
| aoqi@0 | 35 | the flags -XX:+VerifyStack and -XX:+DeoptimizeALot to get more information. |
| aoqi@0 | 36 | ****************************************************************************************/ |
| aoqi@0 | 37 | import java.lang.reflect.Constructor; |
| aoqi@0 | 38 | |
| aoqi@0 | 39 | public class Test_ia32 { |
| aoqi@0 | 40 | |
| aoqi@0 | 41 | public static int NUM_THREADS = 100; |
| aoqi@0 | 42 | |
| aoqi@0 | 43 | public static int CLONE_LENGTH = 1000; |
| aoqi@0 | 44 | |
| aoqi@0 | 45 | public static void main(String[] args) throws InterruptedException, ClassNotFoundException { |
| aoqi@0 | 46 | |
| aoqi@0 | 47 | Reflector[] threads = new Reflector[NUM_THREADS]; |
| aoqi@0 | 48 | for (int i = 0; i < threads.length; i++) { |
| aoqi@0 | 49 | threads[i] = new Reflector(); |
| aoqi@0 | 50 | threads[i].start(); |
| aoqi@0 | 51 | } |
| aoqi@0 | 52 | |
| aoqi@0 | 53 | System.out.println("Give Reflector.run() some time to compile..."); |
| aoqi@0 | 54 | Thread.sleep(5000); |
| aoqi@0 | 55 | |
| aoqi@0 | 56 | System.out.println("Load RMISecurityException causing run() deoptimization"); |
| aoqi@0 | 57 | ClassLoader.getSystemClassLoader().loadClass("java.rmi.RMISecurityException"); |
| aoqi@0 | 58 | |
| aoqi@0 | 59 | for (Reflector thread : threads) |
| aoqi@0 | 60 | thread.requestStop(); |
| aoqi@0 | 61 | |
| aoqi@0 | 62 | for (Reflector thread : threads) |
| aoqi@0 | 63 | try { |
| aoqi@0 | 64 | thread.join(); |
| aoqi@0 | 65 | } catch (InterruptedException e) { |
| aoqi@0 | 66 | System.out.println(e); |
| aoqi@0 | 67 | } |
| aoqi@0 | 68 | |
| aoqi@0 | 69 | } |
| aoqi@0 | 70 | |
| aoqi@0 | 71 | } |
| aoqi@0 | 72 | |
| aoqi@0 | 73 | class Reflector extends Thread { |
| aoqi@0 | 74 | |
| aoqi@0 | 75 | volatile boolean _doSpin = true; |
| aoqi@0 | 76 | |
| aoqi@0 | 77 | Test_ia32[] _tests; |
| aoqi@0 | 78 | |
| aoqi@0 | 79 | Reflector() { |
| aoqi@0 | 80 | _tests = new Test_ia32[Test_ia32.CLONE_LENGTH]; |
| aoqi@0 | 81 | for (int i = 0; i < _tests.length; i++) { |
| aoqi@0 | 82 | _tests[i] = new Test_ia32(); |
| aoqi@0 | 83 | } |
| aoqi@0 | 84 | } |
| aoqi@0 | 85 | |
| aoqi@0 | 86 | static int g(int i1, int i2, Test_ia32[] arr, int i3, int i4) { |
| aoqi@0 | 87 | |
| aoqi@0 | 88 | if (!(i1==1 && i2==2 && i3==3 && i4==4)) { |
| aoqi@0 | 89 | System.out.println("Bug!"); |
| aoqi@0 | 90 | } |
| aoqi@0 | 91 | |
| aoqi@0 | 92 | return arr.length; |
| aoqi@0 | 93 | } |
| aoqi@0 | 94 | |
| aoqi@0 | 95 | static int f(Test_ia32[] arr) { |
| aoqi@0 | 96 | return g(1, 2, arr.clone(), 3, 4); |
| aoqi@0 | 97 | } |
| aoqi@0 | 98 | |
| aoqi@0 | 99 | @Override |
| aoqi@0 | 100 | public void run() { |
| aoqi@0 | 101 | Constructor[] ctrs = null; |
| aoqi@0 | 102 | Class<Test_ia32> klass = Test_ia32.class; |
| aoqi@0 | 103 | try { |
| aoqi@0 | 104 | ctrs = klass.getConstructors(); |
| aoqi@0 | 105 | } catch (SecurityException e) { |
| aoqi@0 | 106 | System.out.println(e); |
| aoqi@0 | 107 | } |
| aoqi@0 | 108 | |
| aoqi@0 | 109 | try { |
| aoqi@0 | 110 | while (_doSpin) { |
| aoqi@0 | 111 | if (f(_tests) < 0) |
| aoqi@0 | 112 | System.out.println("return value usage"); |
| aoqi@0 | 113 | } |
| aoqi@0 | 114 | } catch (NullPointerException e) { |
| aoqi@0 | 115 | e.printStackTrace(); |
| aoqi@0 | 116 | } |
| aoqi@0 | 117 | |
| aoqi@0 | 118 | System.out.println(this + " - stopped."); |
| aoqi@0 | 119 | } |
| aoqi@0 | 120 | |
| aoqi@0 | 121 | public void requestStop() { |
| aoqi@0 | 122 | System.out.println(this + " - stop requested."); |
| aoqi@0 | 123 | _doSpin = false; |
| aoqi@0 | 124 | } |
| aoqi@0 | 125 | |
| aoqi@0 | 126 | } |
