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annotate graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/FindUniqueConcreteMethodBugTest.java @ 21556:48c1ebd24120

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renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Wed, 27 May 2015 00:36:16 +0200
parents 93c50cefb9e8
children 0e095e2c24e2
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1 /*
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2 * Copyright (c) 2014, 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 package com.oracle.graal.compiler.test;
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24
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25 import org.junit.*;
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26
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27 import com.oracle.jvmci.meta.Assumptions.AssumptionResult;
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28 import com.oracle.jvmci.meta.*;
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29
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30 public class FindUniqueConcreteMethodBugTest extends GraalCompilerTest {
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31
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32 // To cause a C1 or C2 crash: -DFindUniqueConcreteMethodBugTest.ITERATIONS=10000
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33 private static final int ITERATIONS = Integer.getInteger("FindUniqueConcreteMethodBugTest.ITERATIONS", 100);
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34
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35 /**
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36 * Executing {@link ResolvedJavaType#findUniqueConcreteMethod(ResolvedJavaMethod)} for the
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37 * method {@link Person#getName()} on the type {@link AbstractPerson} should return null as both
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38 * {@link PersonImpl} and {@link TenantImpl} provide implementations (namely
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39 * {@link PersonImpl#getName()} and {@link Tenant#getName()}).
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40 */
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41 @Test
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42 @Ignore("fix HotSpotResolvedObjectTypeImpl.findUniqueConcreteMethod")
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43 public void test() throws NoSuchMethodException {
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44 ResolvedJavaMethod ifaceMethod = getMetaAccess().lookupJavaMethod(Person.class.getDeclaredMethod("getName"));
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45
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46 PersonImpl person = new PersonImpl("maya");
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47 TenantImpl tenant = new TenantImpl(0xdeadbeef);
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48
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49 // Ensure the relevant methods are linked
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50 person.getName();
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51 tenant.getName();
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52
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53 for (int i = 0; i < ITERATIONS; i++) {
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54 getLabelLength(person);
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55 getLabelLength(tenant);
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56 }
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57
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58 // Until HotSpotResolvedObjectTypeImpl.findUniqueConcreteMethod is fixed,
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59 // this causes a VM crash as getLabelLength() directly invokes PersonImpl.getName().
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60 test("getLabelLength", tenant);
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61
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62 ResolvedJavaMethod expected = null;
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63 AssumptionResult<ResolvedJavaMethod> actual = getMetaAccess().lookupJavaType(AbstractPerson.class).findUniqueConcreteMethod(ifaceMethod);
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64 Assert.assertEquals(expected, actual.getResult());
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65
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66 }
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67
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68 public int getLabelLength(AbstractPerson person) {
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69 return person.getName().length();
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70 }
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71
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72 interface Person {
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73 String getName();
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74
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75 default int getId() {
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76 return -1;
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77 }
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78 }
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79
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80 interface Tenant extends Person {
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81 default String getName() {
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82 return getAddress();
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83 }
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84
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85 String getAddress();
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86 }
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87
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88 abstract static class AbstractPerson implements Person {
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89 }
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90
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91 static class PersonImpl extends AbstractPerson {
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92 public String name;
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93
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94 public PersonImpl(String name) {
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95 this.name = name;
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96 }
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97
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98 public String getName() {
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99 return name;
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100 }
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101 }
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102
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103 static class TenantImpl extends AbstractPerson implements Tenant {
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104 public int id;
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105
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106 public TenantImpl(int id) {
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107 this.id = id;
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108 }
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109
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110 public String getAddress() {
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111 return String.valueOf(id);
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diff changeset
112 }
810b676423bc added test demonstrating bug in HotSpotResolvedObjectTypeImpl.findUniqueConcreteMethod (and similar bugs in C1 and C2)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
113 }
810b676423bc added test demonstrating bug in HotSpotResolvedObjectTypeImpl.findUniqueConcreteMethod (and similar bugs in C1 and C2)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
114 }