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annotate graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/TruffleRuntimeTest.java @ 19213:d7e743760000
Add LowLevelHighTierPhase.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Mon, 09 Feb 2015 09:03:41 +0100 |
parents | c88ab4f1f04a |
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rev | line source |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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1 /* |
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2 * Copyright (c) 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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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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Introduction of the Truffle API for efficient implementation of dynamic languages on top of the Graal VM. New projects com.oracle.truffle.api for the API definition and com.oracle.truffle.api.test for API tests and documentation.
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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.test; |
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24 |
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25 import static org.junit.Assert.*; |
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26 |
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27 import java.util.*; |
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28 |
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29 import org.junit.*; |
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30 |
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31 import com.oracle.truffle.api.*; |
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32 import com.oracle.truffle.api.frame.*; |
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33 import com.oracle.truffle.api.nodes.*; |
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34 import com.oracle.truffle.api.source.*; |
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35 |
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36 /** |
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37 * <h3>Accessing the Truffle Runtime</h3> |
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38 * |
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39 * <p> |
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40 * The Truffle runtime can be accessed at any point in time globally using the static method |
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41 * {@link Truffle#getRuntime()}. This method is guaranteed to return a non-null Truffle runtime |
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42 * object with an identifying name. A Java Virtual Machine implementation can chose to replace the |
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43 * default implementation of the {@link TruffleRuntime} interface with its own implementation for |
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44 * providing improved performance. |
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45 * </p> |
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46 * |
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47 * <p> |
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48 * The next part of the Truffle API introduction is at |
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49 * {@link com.oracle.truffle.api.test.RootNodeTest}. |
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50 * </p> |
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51 */ |
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52 public class TruffleRuntimeTest { |
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53 |
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54 private TruffleRuntime runtime; |
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55 |
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56 @Before |
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57 public void setUp() { |
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58 this.runtime = Truffle.getRuntime(); |
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59 } |
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60 |
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61 private static RootNode createTestRootNode() { |
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62 return new RootNode() { |
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63 @Override |
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64 public Object execute(VirtualFrame frame) { |
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65 return 42; |
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66 } |
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67 }; |
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68 } |
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69 |
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70 @Test |
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71 public void test() { |
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72 assertNotNull(runtime); |
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73 assertNotNull(runtime.getName()); |
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74 } |
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75 |
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76 @Test |
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77 public void testCreateCallTarget() { |
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78 RootNode rootNode = createTestRootNode(); |
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79 RootCallTarget target = runtime.createCallTarget(rootNode); |
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80 assertNotNull(target); |
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81 assertEquals(target.call(), 42); |
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82 assertSame(rootNode, target.getRootNode()); |
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83 } |
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84 |
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85 @Test |
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86 public void testGetCallTargets1() { |
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87 RootNode rootNode = createTestRootNode(); |
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88 RootCallTarget target = runtime.createCallTarget(rootNode); |
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89 assertTrue(runtime.getCallTargets().contains(target)); |
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90 } |
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91 |
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92 @Test |
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93 public void testGetCallTargets2() { |
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94 RootNode rootNode = createTestRootNode(); |
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95 RootCallTarget target1 = runtime.createCallTarget(rootNode); |
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96 RootCallTarget target2 = runtime.createCallTarget(rootNode); |
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97 assertTrue(runtime.getCallTargets().contains(target1)); |
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98 assertTrue(runtime.getCallTargets().contains(target2)); |
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99 } |
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100 |
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101 /* |
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102 * This test case documents the use case for profilers and debuggers where they need to access |
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103 * multiple call targets for the same source section. This case may happen when the optimization |
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104 * system decides to duplicate call targets to achieve better performance. |
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105 */ |
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106 @Test |
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107 public void testGetCallTargets3() { |
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108 Source source1 = Source.fromText("a\nb\n", ""); |
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109 SourceSection sourceSection1 = source1.createSection("foo", 1); |
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110 SourceSection sourceSection2 = source1.createSection("bar", 2); |
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111 |
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112 RootNode rootNode1 = createTestRootNode(); |
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113 rootNode1.assignSourceSection(sourceSection1); |
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114 RootNode rootNode2 = createTestRootNode(); |
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115 rootNode2.assignSourceSection(sourceSection2); |
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116 RootNode rootNode2Copy = NodeUtil.cloneNode(rootNode2); |
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117 |
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118 assertSame(rootNode2.getSourceSection(), rootNode2Copy.getSourceSection()); |
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119 |
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120 RootCallTarget target1 = runtime.createCallTarget(rootNode1); |
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121 RootCallTarget target2 = runtime.createCallTarget(rootNode2); |
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122 RootCallTarget target2Copy = runtime.createCallTarget(rootNode2Copy); |
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123 |
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124 Map<SourceSection, List<RootCallTarget>> groupedTargets = groupUniqueCallTargets(); |
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125 |
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126 List<RootCallTarget> targets1 = groupedTargets.get(sourceSection1); |
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127 assertEquals(1, targets1.size()); |
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128 assertEquals(target1, targets1.get(0)); |
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129 |
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130 List<RootCallTarget> targets2 = groupedTargets.get(sourceSection2); |
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131 assertEquals(2, targets2.size()); |
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132 // order of targets2 is not guaranteed |
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133 assertTrue(target2 == targets2.get(0) ^ target2Copy == targets2.get(0)); |
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134 assertTrue(target2 == targets2.get(1) ^ target2Copy == targets2.get(1)); |
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135 } |
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136 |
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137 private static Map<SourceSection, List<RootCallTarget>> groupUniqueCallTargets() { |
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138 Map<SourceSection, List<RootCallTarget>> groupedTargets = new HashMap<>(); |
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139 for (RootCallTarget target : Truffle.getRuntime().getCallTargets()) { |
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140 SourceSection section = target.getRootNode().getSourceSection(); |
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141 if (section == null) { |
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142 // can not identify root node to a unique call target. Print warning? |
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143 continue; |
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144 } |
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145 List<RootCallTarget> targets = groupedTargets.get(section); |
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146 if (targets == null) { |
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147 targets = new ArrayList<>(); |
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148 groupedTargets.put(section, targets); |
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149 } |
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150 targets.add(target); |
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151 } |
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152 return groupedTargets; |
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153 } |
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154 } |