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annotate graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/FloatingReadTest.java @ 19250:8ab925a6f724

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made Assumptions be part of a StructuredGraph
author Doug Simon <doug.simon@oracle.com>
date Wed, 11 Feb 2015 10:13:08 +0100
parents 1668de777c42
children a0a760b0fb5f
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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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25 import static com.oracle.graal.api.code.Assumptions.*;
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26
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27 import org.junit.*;
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29 import com.oracle.graal.debug.*;
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30 import com.oracle.graal.debug.Debug.Scope;
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31 import com.oracle.graal.graph.*;
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32 import com.oracle.graal.nodes.*;
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33 import com.oracle.graal.nodes.extended.*;
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34 import com.oracle.graal.nodes.spi.*;
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35 import com.oracle.graal.phases.common.*;
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36 import com.oracle.graal.phases.tiers.*;
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37
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38 public class FloatingReadTest extends GraphScheduleTest {
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39
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40 public static class Container {
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41
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42 public int a;
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43 }
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44
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45 public static void changeField(Container c) {
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46 c.a = 0xcafebabe;
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47 }
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48
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49 public static synchronized int test1Snippet() {
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50 Container c = new Container();
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51 return c.a;
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52 }
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53
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54 @Test
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55 public void test1() {
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56 test("test1Snippet");
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57 }
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58
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59 private void test(final String snippet) {
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60 try (Scope s = Debug.scope("FloatingReadTest", new DebugDumpScope(snippet))) {
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61
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62 StructuredGraph graph = parseEager(snippet, ALLOW_OPTIMISTIC_ASSUMPTIONS);
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63 PhaseContext context = new PhaseContext(getProviders());
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64 new LoweringPhase(new CanonicalizerPhase(true), LoweringTool.StandardLoweringStage.HIGH_TIER).apply(graph, context);
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65 new FloatingReadPhase().apply(graph);
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66
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67 ReturnNode returnNode = null;
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68 MonitorExit monitorexit = null;
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69
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70 for (Node n : graph.getNodes()) {
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71 if (n instanceof ReturnNode) {
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72 assert returnNode == null;
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73 returnNode = (ReturnNode) n;
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74 } else if (n instanceof MonitorExit) {
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75 monitorexit = (MonitorExit) n;
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76 }
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77 }
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78
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79 Debug.dump(graph, "After lowering");
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80
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81 Assert.assertNotNull(returnNode);
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82 Assert.assertNotNull(monitorexit);
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83 Assert.assertTrue(returnNode.result() instanceof FloatingReadNode);
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84
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85 FloatingReadNode read = (FloatingReadNode) returnNode.result();
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86
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87 assertOrderedAfterSchedule(graph, read, (Node) monitorexit);
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88 } catch (Throwable e) {
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89 throw Debug.handle(e);
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90 }
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91 }
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92 }