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annotate graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/DegeneratedLoopsTest.java @ 13197:8569b9e047cd

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change debug scopes implementation to prevent extra frames related to mechanism being added to call stack
author Doug Simon <doug.simon@oracle.com>
date Sat, 30 Nov 2013 01:16:55 +0100
parents bba234a1670e
children f4f0a8a01ce0
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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 org.junit.*;
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26
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27 import com.oracle.graal.api.code.*;
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28 import com.oracle.graal.debug.*;
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29 import com.oracle.graal.debug.Debug.Scope;
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30 import com.oracle.graal.nodes.*;
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31 import com.oracle.graal.phases.*;
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32 import com.oracle.graal.phases.common.*;
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33 import com.oracle.graal.phases.tiers.*;
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34
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35 /**
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36 * In the following tests, the usages of local variable "a" are replaced with the integer constant
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37 * 0. Then canonicalization is applied and it is verified that the resulting graph is equal to the
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38 * graph of the method that just has a "return 1" statement in it.
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39 */
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40 public class DegeneratedLoopsTest extends GraalCompilerTest {
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41
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42 private static final String REFERENCE_SNIPPET = "referenceSnippet";
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43
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44 @SuppressWarnings("all")
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45 public static int referenceSnippet(int a) {
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46 return a;
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47 }
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48
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49 @Test
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50 public void test1() {
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51 test("test1Snippet");
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52 }
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53
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54 private static class UnresolvedException extends RuntimeException {
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55
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56 private static final long serialVersionUID = 5215434338750728440L;
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57
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58 static {
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59 if (true) {
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60 throw new UnsupportedOperationException("this class may never be initialized");
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61 }
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62 }
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63 }
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64
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65 @SuppressWarnings("all")
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66 public static int test1Snippet(int a) {
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67 for (;;) {
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68 try {
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69 test();
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70 break;
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71 } catch (UnresolvedException e) {
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72 }
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73 }
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74 return a;
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75 }
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76
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77 private static void test() {
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78
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79 }
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80
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81 private void test(final String snippet) {
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82 try (Scope s = Debug.scope("DegeneratedLoopsTest", new DebugDumpScope(snippet))) {
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83 StructuredGraph graph = parse(snippet);
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84 HighTierContext context = new HighTierContext(getProviders(), new Assumptions(false), null, getDefaultPhasePlan(), OptimisticOptimizations.ALL);
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85 new InliningPhase(new CanonicalizerPhase(true)).apply(graph, context);
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86 new CanonicalizerPhase(true).apply(graph, context);
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87 Debug.dump(graph, "Graph");
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88 StructuredGraph referenceGraph = parse(REFERENCE_SNIPPET);
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89 Debug.dump(referenceGraph, "ReferenceGraph");
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90 assertEquals(referenceGraph, graph);
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91 } catch (Throwable e) {
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92 throw Debug.handle(e);
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93 }
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94 }
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95 }