Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/match/MatchContext.java @ 17274:5c55441b4c62
fixed reported annotation parsing time in NodeClass
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 30 Sep 2014 21:35:36 +0200 |
parents | 589c3627fab8 |
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1 /* |
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2 * Copyright (c) 2014, 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.match; |
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24 |
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25 import static com.oracle.graal.compiler.GraalDebugConfig.*; |
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26 |
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27 import java.util.*; |
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28 |
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29 import com.oracle.graal.compiler.common.*; |
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30 import com.oracle.graal.compiler.gen.*; |
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31 import com.oracle.graal.compiler.match.MatchPattern.Result; |
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32 import com.oracle.graal.debug.*; |
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33 import com.oracle.graal.nodes.*; |
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34 import com.oracle.graal.nodes.calc.*; |
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35 import com.oracle.graal.nodes.virtual.*; |
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36 |
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37 /** |
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38 * Container for state captured during a match. |
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39 */ |
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40 public class MatchContext { |
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41 |
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42 private final ValueNode root; |
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43 |
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44 private final List<ScheduledNode> nodes; |
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45 |
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46 private final MatchStatement rule; |
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47 |
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48 private Map<String, NamedNode> namedNodes; |
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49 |
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50 private ArrayList<ValueNode> consumed; |
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51 |
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52 private int startIndex; |
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53 |
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54 private int endIndex; |
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55 |
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56 private final NodeLIRBuilder builder; |
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57 |
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58 private static class NamedNode { |
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59 final Class<? extends ValueNode> type; |
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60 final ValueNode value; |
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61 |
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62 NamedNode(Class<? extends ValueNode> type, ValueNode value) { |
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63 this.type = type; |
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64 this.value = value; |
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65 } |
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66 } |
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67 |
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68 public MatchContext(NodeLIRBuilder builder, MatchStatement rule, int index, ValueNode node, List<ScheduledNode> nodes) { |
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69 this.builder = builder; |
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70 this.rule = rule; |
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71 this.root = node; |
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72 this.nodes = nodes; |
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73 assert index == nodes.indexOf(node); |
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74 // The root should be the last index since all the inputs must be scheduled before it. |
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75 startIndex = endIndex = index; |
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76 } |
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77 |
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78 public ValueNode getRoot() { |
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79 return root; |
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80 } |
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81 |
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82 public Result captureNamedValue(String name, Class<? extends ValueNode> type, ValueNode value) { |
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83 if (namedNodes == null) { |
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84 namedNodes = new HashMap<>(2); |
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85 } |
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86 NamedNode current = namedNodes.get(name); |
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87 if (current == null) { |
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88 current = new NamedNode(type, value); |
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89 namedNodes.put(name, current); |
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90 return Result.OK; |
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91 } else { |
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92 if (current.value != value || current.type != type) { |
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93 return Result.NAMED_VALUE_MISMATCH(value, rule.getPattern()); |
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94 } |
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95 return Result.OK; |
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96 } |
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97 } |
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98 |
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99 public Result validate() { |
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100 // Ensure that there's no unsafe work in between these operations. |
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101 for (int i = startIndex; i <= endIndex; i++) { |
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102 ScheduledNode node = nodes.get(i); |
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103 if (node instanceof VirtualObjectNode || node instanceof FloatingNode) { |
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104 // The order of evaluation of these nodes controlled by data dependence so they |
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105 // don't interfere with this match. |
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106 continue; |
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107 } else if ((consumed == null || !consumed.contains(node)) && node != root) { |
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108 if (LogVerbose.getValue()) { |
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109 Debug.log("unexpected node %s", node); |
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110 for (int j = startIndex; j <= endIndex; j++) { |
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111 ScheduledNode theNode = nodes.get(j); |
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112 Debug.log("%s(%s) %1s", (consumed != null && consumed.contains(theNode) || theNode == root) ? "*" : " ", theNode.usages().count(), theNode); |
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113 } |
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114 } |
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115 return Result.NOT_SAFE(node, rule.getPattern()); |
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116 } |
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117 } |
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118 return Result.OK; |
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119 } |
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120 |
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121 /** |
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122 * Mark the interior nodes with INTERIOR_MATCH and set the Value of the root to be the result. |
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123 * During final LIR generation it will be evaluated to produce the actual LIR value. |
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124 * |
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125 * @param result |
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126 */ |
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127 public void setResult(ComplexMatchResult result) { |
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128 ComplexMatchValue value = new ComplexMatchValue(result); |
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129 if (Debug.isLogEnabled()) { |
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130 Debug.log("matched %s %s", rule.getName(), rule.getPattern()); |
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131 Debug.log("with nodes %s", rule.formatMatch(root)); |
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132 } |
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133 if (consumed != null) { |
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134 for (ValueNode node : consumed) { |
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135 // All the interior nodes should be skipped during the normal doRoot calls in |
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136 // NodeLIRBuilder so mark them as interior matches. The root of the match will get a |
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137 // closure which will be evaluated to produce the final LIR. |
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138 builder.setMatchResult(node, ComplexMatchValue.INTERIOR_MATCH); |
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139 } |
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140 } |
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141 builder.setMatchResult(root, value); |
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142 } |
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143 |
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144 /** |
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145 * Mark a node as consumed by the match. Consumed nodes will never be evaluated. |
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146 * |
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147 * @return Result.OK if the node can be safely consumed. |
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148 */ |
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149 public Result consume(ValueNode node) { |
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150 assert node.usages().count() <= 1 : "should have already been checked"; |
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151 |
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152 // Check NOT_IN_BLOCK first since that usually implies ALREADY_USED |
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153 int index = nodes.indexOf(node); |
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154 if (index == -1) { |
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155 return Result.NOT_IN_BLOCK(node, rule.getPattern()); |
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156 } |
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157 |
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158 if (builder.hasOperand(node)) { |
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159 return Result.ALREADY_USED(node, rule.getPattern()); |
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160 } |
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161 |
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162 startIndex = Math.min(startIndex, index); |
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163 if (consumed == null) { |
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164 consumed = new ArrayList<>(2); |
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165 } |
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166 consumed.add(node); |
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167 return Result.OK; |
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168 } |
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169 |
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170 /** |
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171 * Return the named node. It's an error if the |
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172 * |
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173 * @param name the name of a node in the match rule |
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174 * @return the matched node |
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175 * @throws GraalInternalError is the named node doesn't exist. |
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176 */ |
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177 public ValueNode namedNode(String name) { |
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178 if (namedNodes != null) { |
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179 NamedNode value = namedNodes.get(name); |
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180 if (value != null) { |
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181 return value.value; |
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182 } |
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183 } |
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184 throw new GraalInternalError("missing node %s", name); |
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185 } |
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186 |
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187 @Override |
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188 public String toString() { |
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189 return String.format("%s %s (%d, %d) consumed %s", rule, root, startIndex, endIndex, consumed != null ? Arrays.toString(consumed.toArray()) : ""); |
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190 } |
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191 } |