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annotate graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/ea/PartialEscapeAnalysisTest.java @ 18995:a2cb19764970

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Rename MergeNode to AbstractMergeNode.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Wed, 28 Jan 2015 01:04:20 +0100
parents 7b09605b29c5
children 61d3cb8e1280
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2011, 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.graal.compiler.test.ea;
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24
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25 import java.lang.ref.*;
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26 import java.util.function.*;
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27
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28 import org.junit.*;
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29
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30 import com.oracle.graal.compiler.test.*;
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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.java.*;
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34 import com.oracle.graal.nodes.virtual.*;
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35 import com.oracle.graal.phases.common.*;
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36 import com.oracle.graal.phases.graph.*;
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37
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38 /**
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39 * The PartialEscapeAnalysisPhase is expected to remove all allocations and return the correct
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40 * values.
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41 */
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42 public class PartialEscapeAnalysisTest extends EATestBase {
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43
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44 public static class TestObject {
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45
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46 public int x;
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47 public int y;
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48
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49 public TestObject(int x, int y) {
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50 this.x = x;
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51 this.y = y;
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52 }
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53 }
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54
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55 public static class TestObject2 {
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56
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57 public Object x;
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58 public Object y;
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59
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60 public TestObject2(Object x, Object y) {
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61 this.x = x;
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62 this.y = y;
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63 }
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64 }
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65
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66 @Test
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67 public void test1() {
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68 testPartialEscapeAnalysis("test1Snippet", 0.25, 1);
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69 }
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70
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71 @SuppressWarnings("all")
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72 public static Object test1Snippet(int a, int b, Object x, Object y) {
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73 TestObject2 obj = new TestObject2(x, y);
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74 if (a < 0) {
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75 if (b < 0) {
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76 return obj;
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77 } else {
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78 return obj.y;
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79 }
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80 } else {
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81 return obj.x;
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82 }
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83 }
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84
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85 @Test
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86 public void test2() {
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87 testPartialEscapeAnalysis("test2Snippet", 1.5, 3, LoadIndexedNode.class);
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88 }
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89
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90 public static Object test2Snippet(int a, Object x, Object y, Object z) {
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91 TestObject2 obj = new TestObject2(x, y);
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92 obj.x = new TestObject2(obj, z);
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93 if (a < 0) {
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94 ((TestObject2) obj.x).y = null;
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95 obj.y = null;
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96 return obj;
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97 } else {
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98 ((TestObject2) obj.x).y = Integer.class;
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99 ((TestObject2) obj.x).x = null;
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100 return obj.x;
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101 }
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102 }
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103
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104 @Test
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105 public void test3() {
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106 testPartialEscapeAnalysis("test3Snippet", 0.5, 1, StoreFieldNode.class, LoadFieldNode.class);
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107 }
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108
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109 public static Object test3Snippet(int a) {
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110 if (a < 0) {
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111 TestObject obj = new TestObject(1, 2);
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112 obj.x = 123;
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113 obj.y = 234;
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114 obj.x = 123111;
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115 obj.y = new Integer(123).intValue();
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116 return obj;
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117 } else {
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118 return null;
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119 }
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120 }
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121
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122 @Test
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123 @Ignore
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124 public void testCache() {
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125 testPartialEscapeAnalysis("testCacheSnippet", 0.75, 1);
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126 }
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127
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128 public static class CacheKey {
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129
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130 private final int idx;
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131 private final Object ref;
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132
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133 public CacheKey(int idx, Object ref) {
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134 this.idx = idx;
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135 this.ref = ref;
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136 }
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137
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138 @Override
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139 public int hashCode() {
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140 return 31 * idx + ref.hashCode();
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141 }
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142
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143 public synchronized boolean equals(CacheKey other) {
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144 return idx == other.idx && ref == other.ref;
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145 }
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146 }
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147
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148 public static CacheKey cacheKey = null;
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149 public static Object value = null;
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150
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151 private static native Object createValue(CacheKey key);
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152
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153 public static Object testCacheSnippet(int idx, Object ref) {
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154 CacheKey key = new CacheKey(idx, ref);
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155 if (!key.equals(cacheKey)) {
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156 cacheKey = key;
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157 value = createValue(key);
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158 }
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159 return value;
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160 }
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161
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162 public static int testReference1Snippet(Object a) {
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163 SoftReference<Object> softReference = new SoftReference<>(a);
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164 if (softReference.get().hashCode() == 0) {
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165 return 1;
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166 } else {
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167 return 2;
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168 }
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169 }
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170
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171 @Test
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172 public void testReference1() {
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173 prepareGraph("testReference1Snippet", false);
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174 assertDeepEquals(1, graph.getNodes().filter(NewInstanceNode.class).count());
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175 }
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176
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177 @SafeVarargs
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178 protected final void testPartialEscapeAnalysis(final String snippet, double expectedProbability, int expectedCount, Class<? extends Node>... invalidNodeClasses) {
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179 prepareGraph(snippet, false);
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180 for (AbstractMergeNode merge : graph.getNodes(AbstractMergeNode.class)) {
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181 merge.setStateAfter(null);
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182 }
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183 new DeadCodeEliminationPhase().apply(graph);
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184 new CanonicalizerPhase(true).apply(graph, context);
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185 try {
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186 Assert.assertTrue("partial escape analysis should have removed all NewInstanceNode allocations", graph.getNodes().filter(NewInstanceNode.class).isEmpty());
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187 Assert.assertTrue("partial escape analysis should have removed all NewArrayNode allocations", graph.getNodes().filter(NewArrayNode.class).isEmpty());
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188
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189 ToDoubleFunction<FixedNode> nodeProbabilities = new FixedNodeProbabilityCache();
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190 double probabilitySum = 0;
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191 int materializeCount = 0;
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192 for (CommitAllocationNode materialize : graph.getNodes().filter(CommitAllocationNode.class)) {
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193 probabilitySum += nodeProbabilities.applyAsDouble(materialize) * materialize.getVirtualObjects().size();
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194 materializeCount += materialize.getVirtualObjects().size();
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195 }
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196 Assert.assertEquals("unexpected number of MaterializeObjectNodes", expectedCount, materializeCount);
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197 Assert.assertEquals("unexpected probability of MaterializeObjectNodes", expectedProbability, probabilitySum, 0.01);
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198 for (Node node : graph.getNodes()) {
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199 for (Class<? extends Node> clazz : invalidNodeClasses) {
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200 Assert.assertFalse("instance of invalid class: " + clazz.getSimpleName(), clazz.isInstance(node) && node.usages().isNotEmpty());
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201 }
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202 }
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203 } catch (AssertionError e) {
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204 TypeSystemTest.outputGraph(graph, snippet + ": " + e.getMessage());
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205 throw e;
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206 }
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207 }
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parents:
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208
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parents:
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209 }