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annotate test/compiler/6823453/Test.java @ 1314:3f0549ed0c98

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6921710: G1: assert(new_finger >= _finger && new_finger < _region_limit,"invariant") Summary: If CM task was aborted while scanning the last object of the specified region and the size of that object is equal to bitmap's granularity then the next offset would be equal or over the region limit which is exactly what the assertion states. Reviewed-by: ysr, tonyp, jmasa
author apetrusenko
date Thu, 18 Mar 2010 01:48:28 -0700
parents d6b9fd78f389
children c18cbe5936b8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright 2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any 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 6823453
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28 * @summary DeoptimizeALot causes fastdebug server jvm to fail with assert(false,"unscheduable graph")
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29 * @run main/othervm -Xcomp -XX:+IgnoreUnrecognizedVMOptions -XX:CompileOnly=Test -XX:+DeoptimizeALot Test
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30 */
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31
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32 public class Test {
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33
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34 static long vara_1 = 1L;
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35
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36 static void testa() {
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37 short var_2 = (byte) 1.0E10;
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38
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39 for ( Object temp = new byte[(byte)1.0E10]; true ;
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40 var_2 = "1".equals("0") ? ((byte) vara_1) : 1 ) {}
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41 }
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42
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43 static void testb() {
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44 long var_1 = -1L;
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45
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46 short var_2 = (byte) 1.0E10;
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47
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48 for ( Object temp = new byte[(byte)1.0E10]; true ;
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49 var_2 = "1".equals("0") ? ((byte) var_1) : 1 ) {}
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50 }
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51
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52 static void testc() {
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53 long var_1 = -1L;
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54 if (vara_1 > 0) var_1 = 1L;
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55
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56 int var_2 = (byte)var_1 - 128;
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57
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58 for ( Object temp = new byte[var_2]; true ;
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59 var_2 = "1".equals("0") ? 2 : 1 ) {}
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60 }
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61
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62 static void testd() {
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63 long var_1 = 0L;
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64
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65 int var_2 = (byte)var_1 + 1;
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66 for (int i=0; i<2 ; i++) var_2 = var_2 - 1;
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67
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68 for ( Object temp = new byte[var_2]; true ;
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69 var_2 = "1".equals("0") ? 2 : 1 ) {}
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70 }
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71
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72 public static void main(String[] args) throws Exception {
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73 int nex = 0;
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74
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75 try {
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76 testa();
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77 }
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78 catch (java.lang.NegativeArraySizeException ex) { nex++; }
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79 try {
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80 testb();
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81 }
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82 catch (java.lang.NegativeArraySizeException ex) { nex++; }
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83 try {
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84 testc();
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85 }
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86 catch (java.lang.NegativeArraySizeException ex) { nex++; }
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87 try {
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88 testd();
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89 }
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90 catch (java.lang.NegativeArraySizeException ex) { nex++; }
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91
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92 if (nex != 4)
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93 System.exit(97);
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94 }
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95 }
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96