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annotate graal/com.oracle.truffle.api.codegen.test/src/com/oracle/truffle/api/codegen/test/GuardsTest.java @ 9345:0a8bf24d660a

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Implemented improvements to the generated source code.
author Christian Humer <christian.humer@gmail.com>
date Fri, 26 Apr 2013 22:43:23 +0200
parents 8e3a1635cc9e
children 86d981cd8e22
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1 /*
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2 * Copyright (c) 2012, 2012, 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.truffle.api.codegen.test;
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24
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25 import static com.oracle.truffle.api.codegen.test.TestHelper.*;
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26
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27 import org.junit.*;
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28 import static org.junit.Assert.*;
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29
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30 import com.oracle.truffle.api.codegen.*;
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31 import com.oracle.truffle.api.codegen.test.GuardsTestFactory.GlobalFlagGuardFactory;
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32 import com.oracle.truffle.api.codegen.test.GuardsTestFactory.InvocationGuardFactory;
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33 import com.oracle.truffle.api.codegen.test.TypeSystemTest.TestRootNode;
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34 import com.oracle.truffle.api.codegen.test.TypeSystemTest.ValueNode;
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35
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36 @SuppressWarnings("unused")
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37 public class GuardsTest {
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38
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39 private static final Object NULL = new Object();
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40
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41 @Test
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42 public void testGuardInvocations() {
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43 TestRootNode<InvocationGuard> root = createRoot(InvocationGuardFactory.getInstance());
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44
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45 assertEquals(Integer.MAX_VALUE, executeWith(root, Integer.MAX_VALUE - 1, 1));
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46 assertEquals(1, InvocationGuard.specializedInvocations);
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47 assertEquals(0, InvocationGuard.genericInvocations);
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48 assertEquals(1, InvocationGuard.guardInvocations);
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49
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50 assertEquals(42, executeWith(root, Integer.MAX_VALUE, 1));
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51 assertEquals(1, InvocationGuard.specializedInvocations);
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52 assertEquals(1, InvocationGuard.genericInvocations);
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53 assertEquals(2, InvocationGuard.guardInvocations);
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54 }
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55
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56 @NodeChildren({@NodeChild("value0"), @NodeChild("value1")})
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57 public abstract static class InvocationGuard extends ValueNode {
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58
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59 static int guardInvocations = 0;
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60 static int specializedInvocations = 0;
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61 static int genericInvocations = 0;
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62
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63 boolean guard(int value0, int value1) {
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64 guardInvocations++;
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65 return value0 != Integer.MAX_VALUE;
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66 }
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67
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68 @Specialization(guards = "guard")
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69 int doSpecialized(int value0, int value1) {
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70 specializedInvocations++;
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71 return value0 + value1;
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72 }
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73
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74 @Generic
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75 int doGeneric(Object value0, Object value1) {
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76 genericInvocations++;
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77 return 42; // the generic answer to all questions
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78 }
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79 }
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80
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81 @Test
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82 public void testGuardGlobal() {
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83 TestRootNode<GlobalFlagGuard> root = createRoot(GlobalFlagGuardFactory.getInstance());
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84
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85 assertEquals(42, executeWith(root, NULL));
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86
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87 GlobalFlagGuard.globalFlag = true;
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88 assertEquals(41, executeWith(root, NULL));
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89
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90 GlobalFlagGuard.globalFlag = false;
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91 assertEquals(42, executeWith(root, NULL));
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92 }
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93
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94 @NodeChild("expression")
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95 public abstract static class GlobalFlagGuard extends ValueNode {
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96
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97 static boolean globalFlag = false;
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98
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99 static boolean globalFlagGuard() {
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100 return globalFlag;
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101 }
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102
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103 @Specialization(guards = "globalFlagGuard")
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104 int doSpecialized(Object value0) {
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105 return 41;
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106 }
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107
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108 @Generic
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109 int doGeneric(Object value0) {
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110 return 42; // the generic answer to all questions
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111 }
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112 }
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113
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114 }