Mercurial > hg > graal-compiler
comparison test/compiler/7009231/Test7009231.java @ 2106:91fe28b03d6a
Merge.
author | Thomas Wuerthinger <wuerthinger@ssw.jku.at> |
---|---|
date | Wed, 26 Jan 2011 18:17:37 +0100 |
parents | 037c727f35fb |
children |
comparison
equal
deleted
inserted
replaced
2062:231bf6b9f5ad | 2106:91fe28b03d6a |
---|---|
1 /* | |
2 * Copyright (c) 2010, 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 * | |
23 */ | |
24 | |
25 /** | |
26 * @test | |
27 * @bug 7009231 | |
28 * @summary C1: Incorrect CAS code for longs on SPARC 32bit | |
29 * | |
30 * @run main/othervm -Xbatch Test7009231 | |
31 * | |
32 */ | |
33 | |
34 import java.util.Random; | |
35 import java.util.concurrent.atomic.AtomicLong; | |
36 | |
37 | |
38 public class Test7009231 { | |
39 public static void main(String[] args) throws InterruptedException { | |
40 doTest(8); | |
41 } | |
42 | |
43 private static void doTest(int nThreads) throws InterruptedException { | |
44 Thread[] aThreads = new Thread[nThreads]; | |
45 final AtomicLong atl = new AtomicLong(); | |
46 | |
47 for (int i = 0; i < nThreads; i++) { | |
48 aThreads[i] = new RunnerThread(atl, 1L << (8 * i)); | |
49 } | |
50 | |
51 for (int i = 0; i < nThreads; i++) { | |
52 aThreads[i].start(); | |
53 } | |
54 | |
55 for (int i = 0; i < nThreads; i++) { | |
56 aThreads[i].join(); | |
57 } | |
58 } | |
59 | |
60 public static class RunnerThread extends Thread { | |
61 public RunnerThread(AtomicLong atomic, long lMask) { | |
62 m_lMask = lMask; | |
63 m_atomic = atomic; | |
64 } | |
65 | |
66 public void run() { | |
67 AtomicLong atomic = m_atomic; | |
68 long lMask = m_lMask; | |
69 for (int i = 0; i < 100000; i++) { | |
70 setBit(atomic, lMask); | |
71 clearBit(atomic, lMask); | |
72 } | |
73 } | |
74 | |
75 protected void setBit(AtomicLong atomic, long lMask) { | |
76 long lWord; | |
77 do { | |
78 lWord = atomic.get(); | |
79 } while (!atomic.compareAndSet(lWord, lWord | lMask)); | |
80 | |
81 if ((atomic.get() & lMask) == 0L) { | |
82 throw new InternalError(); | |
83 } | |
84 } | |
85 | |
86 protected void clearBit(AtomicLong atomic, long lMask) { | |
87 long lWord; | |
88 do { | |
89 lWord = atomic.get(); | |
90 } while (!atomic.compareAndSet(lWord, lWord & ~lMask)); | |
91 | |
92 if ((atomic.get() & lMask) != 0L) { | |
93 throw new InternalError(); | |
94 } | |
95 } | |
96 | |
97 private long m_lMask; | |
98 private AtomicLong m_atomic; | |
99 } | |
100 } |