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annotate graal/com.oracle.max.graal.jtt/src/com/oracle/graal/jtt/optimize/VN_InstanceOf02.java @ 5060:4ed4295ce15f

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Update import statements.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Thu, 08 Mar 2012 19:11:12 +0100
parents ed559a528128
children
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1 /*
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2 * Copyright (c) 2009, 2012, 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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4ed4295ce15f Update import statements.
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23 package com.oracle.graal.jtt.optimize;
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24
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25 import org.junit.*;
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26
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27 /*
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28 * Tests value numbering of instanceof operations.
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29 */
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30 public class VN_InstanceOf02 {
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31
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32 private static boolean cond = true;
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33
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34 static final Object object = new VN_InstanceOf02();
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35
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36 public static boolean test(int arg) {
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37 if (arg == 0) {
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38 return foo1();
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39 }
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40 if (arg == 1) {
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41 return foo2();
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42 }
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43 if (arg == 2) {
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44 return foo3();
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45 }
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46 // do nothing
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47 return false;
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48 }
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49
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50 private static boolean foo1() {
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51 boolean a = object instanceof VN_InstanceOf02;
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52 if (cond) {
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53 boolean b = object instanceof VN_InstanceOf02;
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54 return a | b;
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55 }
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56 return false;
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57 }
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58
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59 private static boolean foo2() {
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60 Object obj = new VN_InstanceOf02();
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61 boolean a = obj instanceof VN_InstanceOf02;
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62 if (cond) {
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63 boolean b = obj instanceof VN_InstanceOf02;
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64 return a | b;
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65 }
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66 return false;
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67 }
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68
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69 private static boolean foo3() {
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70 boolean a = null instanceof VN_InstanceOf02;
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71 if (cond) {
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72 boolean b = null instanceof VN_InstanceOf02;
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73 return a | b;
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74 }
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75 return false;
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76 }
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77
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78 @Test
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79 public void run0() throws Throwable {
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80 Assert.assertEquals(true, test(0));
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81 }
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82
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83 @Test
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84 public void run1() throws Throwable {
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85 Assert.assertEquals(true, test(1));
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86 }
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87
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88 @Test
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89 public void run2() throws Throwable {
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90 Assert.assertEquals(false, test(2));
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91 }
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92
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93 }