Mercurial > hg > graal-compiler
annotate test/compiler/7009231/Test7009231.java @ 13692:c215dec9d3cf
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author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Wed, 15 Jan 2014 16:11:56 +0100 |
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1 /* |
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2 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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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. |
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22 * |
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23 */ |
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24 |
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25 /** |
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26 * @test |
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27 * @bug 7009231 |
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28 * @summary C1: Incorrect CAS code for longs on SPARC 32bit |
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29 * |
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30 * @run main/othervm -Xbatch Test7009231 |
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31 * |
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32 */ |
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33 |
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34 import java.util.Random; |
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35 import java.util.concurrent.atomic.AtomicLong; |
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36 |
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37 |
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38 public class Test7009231 { |
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39 public static void main(String[] args) throws InterruptedException { |
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40 doTest(8); |
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41 } |
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42 |
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43 private static void doTest(int nThreads) throws InterruptedException { |
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44 Thread[] aThreads = new Thread[nThreads]; |
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45 final AtomicLong atl = new AtomicLong(); |
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46 |
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47 for (int i = 0; i < nThreads; i++) { |
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48 aThreads[i] = new RunnerThread(atl, 1L << (8 * i)); |
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49 } |
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50 |
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51 for (int i = 0; i < nThreads; i++) { |
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52 aThreads[i].start(); |
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53 } |
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54 |
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55 for (int i = 0; i < nThreads; i++) { |
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56 aThreads[i].join(); |
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57 } |
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58 } |
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59 |
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60 public static class RunnerThread extends Thread { |
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61 public RunnerThread(AtomicLong atomic, long lMask) { |
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62 m_lMask = lMask; |
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63 m_atomic = atomic; |
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64 } |
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65 |
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66 public void run() { |
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67 AtomicLong atomic = m_atomic; |
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68 long lMask = m_lMask; |
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69 for (int i = 0; i < 100000; i++) { |
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70 setBit(atomic, lMask); |
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71 clearBit(atomic, lMask); |
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72 } |
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73 } |
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74 |
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75 protected void setBit(AtomicLong atomic, long lMask) { |
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76 long lWord; |
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77 do { |
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78 lWord = atomic.get(); |
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79 } while (!atomic.compareAndSet(lWord, lWord | lMask)); |
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80 |
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81 if ((atomic.get() & lMask) == 0L) { |
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82 throw new InternalError(); |
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83 } |
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84 } |
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85 |
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86 protected void clearBit(AtomicLong atomic, long lMask) { |
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87 long lWord; |
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88 do { |
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89 lWord = atomic.get(); |
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90 } while (!atomic.compareAndSet(lWord, lWord & ~lMask)); |
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91 |
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92 if ((atomic.get() & lMask) != 0L) { |
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93 throw new InternalError(); |
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94 } |
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95 } |
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96 |
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97 private long m_lMask; |
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98 private AtomicLong m_atomic; |
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99 } |
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100 } |