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annotate graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/LockEliminationTest.java @ 11959:23ccaa863eda

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made CodeCacheProvider independent of MetaAccessProvider (GRAAL-511)
author Doug Simon <doug.simon@oracle.com>
date Thu, 10 Oct 2013 16:14:55 +0200
parents 65cedae2647e
children 0fc653a9e019
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10807
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1 /*
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2 * Copyright (c) 2011, 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 java.lang.reflect.*;
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26
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27 import org.junit.*;
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28
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29 import com.oracle.graal.api.code.*;
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30 import com.oracle.graal.nodes.*;
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31 import com.oracle.graal.nodes.java.*;
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32 import com.oracle.graal.phases.*;
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33 import com.oracle.graal.phases.common.*;
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34 import com.oracle.graal.phases.tiers.*;
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35
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36 public class LockEliminationTest extends GraalCompilerTest {
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37
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38 static class A {
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39
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40 int value;
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41
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42 public synchronized int getValue() {
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43 return value;
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44 }
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45 }
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46
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47 static int field1;
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48 static int field2;
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49
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50 public static void testSynchronizedSnippet(A x, A y) {
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51 synchronized (x) {
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52 field1 = x.value;
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53 }
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54 synchronized (x) {
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55 field2 = y.value;
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56 }
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57 }
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58
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59 @Test
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60 public void testLock() {
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61 test("testSynchronizedSnippet", new A(), new A());
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62
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63 StructuredGraph graph = getGraph("testSynchronizedSnippet");
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64 new CanonicalizerPhase(true).apply(graph, new PhaseContext(getMetaAccess(), getCodeCache(), null, replacements));
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65 new LockEliminationPhase().apply(graph);
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66 assertEquals(1, graph.getNodes().filter(MonitorEnterNode.class).count());
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67 assertEquals(1, graph.getNodes().filter(MonitorExitNode.class).count());
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68 }
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69
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70 public static void testSynchronizedMethodSnippet(A x) {
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71 int value1 = x.getValue();
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72 int value2 = x.getValue();
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73 field1 = value1;
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74 field2 = value2;
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75 }
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76
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77 @Test
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78 public void testSynchronizedMethod() {
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79 test("testSynchronizedMethodSnippet", new A());
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80
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81 StructuredGraph graph = getGraph("testSynchronizedMethodSnippet");
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82 new CanonicalizerPhase(true).apply(graph, new PhaseContext(getMetaAccess(), getCodeCache(), null, replacements));
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83 new LockEliminationPhase().apply(graph);
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84 assertEquals(1, graph.getNodes().filter(MonitorEnterNode.class).count());
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85 assertEquals(1, graph.getNodes().filter(MonitorExitNode.class).count());
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86 }
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87
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88 private StructuredGraph getGraph(String snippet) {
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89 Method method = getMethod(snippet);
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90 StructuredGraph graph = parse(method);
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91 PhasePlan phasePlan = getDefaultPhasePlan();
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92 Assumptions assumptions = new Assumptions(true);
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93 HighTierContext context = new HighTierContext(getMetaAccess(), getCodeCache(), assumptions, replacements, null, phasePlan, OptimisticOptimizations.ALL);
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94 new CanonicalizerPhase(true).apply(graph, context);
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95 new InliningPhase(new CanonicalizerPhase(true)).apply(graph, context);
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96 new CanonicalizerPhase(true).apply(graph, context);
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97 new DeadCodeEliminationPhase().apply(graph);
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98 new LoweringPhase(new CanonicalizerPhase(true)).apply(graph, context);
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99 new ValueAnchorCleanupPhase().apply(graph);
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100 new LockEliminationPhase().apply(graph);
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101 return graph;
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102 }
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103
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104 }