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annotate graal/com.oracle.max.graal.tests/src/com/oracle/max/graal/compiler/tests/InvokeTest.java @ 4257:32b8274f52ad

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Made 'mx ideinit' resolve library dependencies eagerly as well as put absolute paths into the generated Eclipse project configurations.
author Doug Simon <doug.simon@oracle.com>
date Tue, 10 Jan 2012 23:49:13 +0100
parents 4df4499e0289
children cd2b68ef8e23
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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.max.graal.compiler.tests;
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24
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25 import java.util.*;
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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.max.graal.compiler.phases.*;
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30 import com.oracle.max.graal.graph.*;
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31 import com.oracle.max.graal.nodes.*;
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32
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33 /**
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34 * In the following tests, the usages of local variable "a" are replaced with the integer constant 0.
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35 * Then canonicalization is applied and it is verified that the resulting graph is equal to the
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36 * graph of the method that just has a "return 1" statement in it.
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37 */
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38 public class InvokeTest extends GraphTest {
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39
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40 private static final String REFERENCE_SNIPPET = "referenceSnippet";
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41
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42 @SuppressWarnings("all")
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43 public static int referenceSnippet(int a) {
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44 return 1;
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45 }
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46
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47 public static int const1() {
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48 return 1;
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49 }
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50
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51 @Test
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52 public void test1() {
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53 test("test1Snippet");
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54 }
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55
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56 @SuppressWarnings("all")
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57 public static int test1Snippet(int a) {
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58 return const1();
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59 }
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60
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61 @Test
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62 public void test2() {
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63 test("test2Snippet");
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64 }
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65
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66 @SuppressWarnings("all")
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67 public static int test2Snippet(int a) {
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68 return const1() + const1() + const1() + const1() + const1() + const1() + const1();
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69 }
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70
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71 private void test(String snippet) {
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72 StructuredGraph graph = parse(snippet);
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73 LocalNode local = graph.getNodes(LocalNode.class).iterator().next();
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74 ConstantNode constant = ConstantNode.forInt(0, graph);
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75 for (Node n : local.usages().snapshot()) {
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76 if (n instanceof FrameState) {
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77 // Do not replace.
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78 } else {
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79 n.replaceFirstInput(local, constant);
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80 }
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81 }
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82 Collection<Invoke> hints = new ArrayList<>();
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83 for (Invoke invoke : graph.getInvokes()) {
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84 hints.add(invoke);
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85 }
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86 new InliningPhase(null, runtime(), hints, null, getDefaultPhasePlan()).apply(graph);
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87 new CanonicalizerPhase(null, runtime(), null).apply(graph);
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88 new DeadCodeEliminationPhase().apply(graph);
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89 StructuredGraph referenceGraph = parse(REFERENCE_SNIPPET);
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90 assertEquals(referenceGraph, graph);
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91 }
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92 }