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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotNodePlugin.java @ 21683:c74d3c9b9de7

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Use a marker value in second slot of a two-slot value during parsing; improve assertion checking in FrameStateBuilder
author Christian Wimmer <christian.wimmer@oracle.com>
date Tue, 02 Jun 2015 18:25:16 -0700
parents 625b2b12b418
children 67e28e817d32
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rev   line source
19778
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1 /*
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2 * Copyright (c) 2015, 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
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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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.hotspot.meta;
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24
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25 import static com.oracle.graal.compiler.common.GraalOptions.*;
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26 import static com.oracle.graal.hotspot.meta.HotSpotGraalConstantReflectionProvider.*;
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27
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28 import com.oracle.graal.api.replacements.*;
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29 import com.oracle.graal.compiler.common.type.*;
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30 import com.oracle.graal.graph.Node.*;
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31 import com.oracle.graal.graphbuilderconf.*;
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32 import com.oracle.graal.nodes.*;
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33 import com.oracle.graal.nodes.calc.*;
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34 import com.oracle.graal.replacements.*;
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35 import com.oracle.graal.word.*;
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36 import com.oracle.jvmci.meta.*;
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37
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38 /**
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39 * This plugin handles the HotSpot-specific customizations of bytecode parsing:
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40 * <p>
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41 * {@link Word}-type rewriting for {@link GraphBuilderContext#parsingIntrinsic intrinsic} functions
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42 * (snippets and method substitutions), by forwarding to the {@link WordOperationPlugin}. Note that
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43 * we forward the {@link NodePlugin} and {@link ParameterPlugin} methods, but not the
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44 * {@link InlineInvokePlugin} methods implemented by {@link WordOperationPlugin}. The latter is not
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45 * necessary because HotSpot only uses the {@link Word} type in methods that are force-inlined,
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46 * i.e., there are never non-inlined invokes that involve the {@link Word} type.
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47 * <p>
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48 * Handling of {@link Fold} and {@link NodeIntrinsic} annotated methods, by forwarding to the
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49 * {@link NodeIntrinsificationPlugin} when parsing intrinsic functions.
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50 * <p>
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51 * Constant folding of field loads.
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52 */
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53 public final class HotSpotNodePlugin implements NodePlugin, ParameterPlugin {
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54 private final MetaAccessProvider metaAccess;
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55 private final ConstantReflectionProvider constantReflection;
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56
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57 protected final WordOperationPlugin wordOperationPlugin;
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58 protected final NodeIntrinsificationPlugin nodeIntrinsificationPlugin;
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59
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60 public HotSpotNodePlugin(MetaAccessProvider metaAccess, ConstantReflectionProvider constantReflection, WordOperationPlugin wordOperationPlugin,
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61 NodeIntrinsificationPlugin nodeIntrinsificationPlugin) {
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62 this.metaAccess = metaAccess;
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63 this.constantReflection = constantReflection;
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64 this.wordOperationPlugin = wordOperationPlugin;
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65 this.nodeIntrinsificationPlugin = nodeIntrinsificationPlugin;
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66 }
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67
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68 @Override
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69 public boolean canChangeStackKind(GraphBuilderContext b) {
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70 if (b.parsingIntrinsic()) {
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71 return wordOperationPlugin.canChangeStackKind(b) || nodeIntrinsificationPlugin.canChangeStackKind(b);
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72 }
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73 return false;
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74 }
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75
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76 @Override
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77 public FloatingNode interceptParameter(GraphBuilderContext b, int index, Stamp stamp) {
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78 if (b.parsingIntrinsic()) {
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79 return wordOperationPlugin.interceptParameter(b, index, stamp);
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80 }
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81 return null;
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82 }
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83
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84 @Override
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85 public boolean handleInvoke(GraphBuilderContext b, ResolvedJavaMethod method, ValueNode[] args) {
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86 if (b.parsingIntrinsic() && wordOperationPlugin.handleInvoke(b, method, args)) {
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87 return true;
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88 }
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89 if (b.parsingIntrinsic() && nodeIntrinsificationPlugin.handleInvoke(b, method, args)) {
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90 return true;
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91 }
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92 return false;
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93 }
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94
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95 @Override
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96 public boolean handleLoadField(GraphBuilderContext b, ValueNode object, ResolvedJavaField field) {
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97 if (!ImmutableCode.getValue() || b.parsingIntrinsic()) {
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98 if (object.isConstant()) {
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99 JavaConstant asJavaConstant = object.asJavaConstant();
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100 if (tryReadField(b, field, asJavaConstant)) {
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101 return true;
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102 }
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103 }
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104 }
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105 if (b.parsingIntrinsic() && wordOperationPlugin.handleLoadField(b, object, field)) {
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106 return true;
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107 }
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108 return false;
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109 }
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110
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111 @Override
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112 public boolean handleLoadStaticField(GraphBuilderContext b, ResolvedJavaField field) {
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113 if (!ImmutableCode.getValue() || b.parsingIntrinsic()) {
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114 if (tryReadField(b, field, null)) {
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115 return true;
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116 }
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117 }
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118 if (b.parsingIntrinsic() && wordOperationPlugin.handleLoadStaticField(b, field)) {
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119 return true;
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120 }
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121 return false;
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122 }
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123
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124 private boolean tryReadField(GraphBuilderContext b, ResolvedJavaField field, JavaConstant object) {
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125 // FieldReadEnabledInImmutableCode is non null only if assertions are enabled
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126 if (FieldReadEnabledInImmutableCode != null && ImmutableCode.getValue()) {
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127 FieldReadEnabledInImmutableCode.set(Boolean.TRUE);
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128 try {
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129 return tryConstantFold(b, field, object);
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130 } finally {
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131 FieldReadEnabledInImmutableCode.set(null);
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132 }
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133 } else {
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134 return tryConstantFold(b, field, object);
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135 }
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136 }
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137
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138 private boolean tryConstantFold(GraphBuilderContext b, ResolvedJavaField field, JavaConstant object) {
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139 JavaConstant result = constantReflection.readConstantFieldValue(field, object);
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140 if (result != null) {
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141 ConstantNode constantNode = ConstantNode.forConstant(result, metaAccess, b.getGraph());
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142 b.push(field.getKind(), constantNode);
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143 return true;
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144 }
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145 return false;
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146 }
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147
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148 @Override
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149 public boolean handleStoreField(GraphBuilderContext b, ValueNode object, ResolvedJavaField field, ValueNode value) {
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150 if (b.parsingIntrinsic() && wordOperationPlugin.handleStoreField(b, object, field, value)) {
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151 return true;
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152 }
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153 return false;
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154 }
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155
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156 @Override
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157 public boolean handleStoreStaticField(GraphBuilderContext b, ResolvedJavaField field, ValueNode value) {
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158 if (b.parsingIntrinsic() && wordOperationPlugin.handleStoreStaticField(b, field, value)) {
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159 return true;
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160 }
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161 return false;
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162 }
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163
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164 @Override
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165 public boolean handleLoadIndexed(GraphBuilderContext b, ValueNode array, ValueNode index, Kind elementKind) {
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166 if (b.parsingIntrinsic() && wordOperationPlugin.handleLoadIndexed(b, array, index, elementKind)) {
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167 return true;
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168 }
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169 return false;
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170 }
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171
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172 @Override
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173 public boolean handleStoreIndexed(GraphBuilderContext b, ValueNode array, ValueNode index, Kind elementKind, ValueNode value) {
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174 if (b.parsingIntrinsic() && wordOperationPlugin.handleStoreIndexed(b, array, index, elementKind, value)) {
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175 return true;
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176 }
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177 return false;
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178 }
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179
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180 @Override
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181 public boolean handleCheckCast(GraphBuilderContext b, ValueNode object, ResolvedJavaType type, JavaTypeProfile profile) {
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182 if (b.parsingIntrinsic() && wordOperationPlugin.handleCheckCast(b, object, type, profile)) {
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183 return true;
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184 }
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185 return false;
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186 }
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187
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188 @Override
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189 public boolean handleInstanceOf(GraphBuilderContext b, ValueNode object, ResolvedJavaType type, JavaTypeProfile profile) {
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190 if (b.parsingIntrinsic() && wordOperationPlugin.handleInstanceOf(b, object, type, profile)) {
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191 return true;
19791
14e703edb2ab use GraphBuilderPlugins for method substitutions, intrinsics and snippets (GRAAL-982)
Doug Simon <doug.simon@oracle.com>
parents: 19778
diff changeset
192 }
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193 return false;
19778
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
Doug Simon <doug.simon@oracle.com>
parents:
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194 }
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
Doug Simon <doug.simon@oracle.com>
parents:
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195 }