Mercurial > hg > truffle
annotate test/compiler/6589834/Test_ia32.java @ 20218:828056cf311f
8040792: G1: Memory usage calculation uses sizeof(this) instead of sizeof(classname)
Summary: A few locations in the code use sizeof(this) which returns the size of the pointer instead of sizeof(classname) which returns the size of the sum of its members. This change fixes these errors and adds a few tests.
Reviewed-by: mgerdin, brutisso
author | tschatzl |
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date | Mon, 21 Jul 2014 09:40:19 +0200 |
parents | 55fb97c4c58d |
children | 4ca6dc0799b6 |
rev | line source |
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730 | 1 /* |
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8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
mikael
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2 * Copyright (c) 2009, 2013, 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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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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6941466: Oracle rebranding changes for Hotspot repositories
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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:"
cfang
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27 * @summary deoptimization problem with -XX:+DeoptimizeALot |
730 | 28 * |
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7115383: TEST_BUG: some jtreg tests fail because they explicitly specify -server option
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29 * @run main Test_ia32 |
730 | 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 } |