Mercurial > hg > graal-compiler
annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/MethodCallTargetNode.java @ 18822:fad37aaed6d2
Add utilities isDirect and isIndirect to InvokeKind.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sun, 11 Jan 2015 17:46:47 +0100 |
parents | 2885aafd812f |
children | 5a21cac1968f |
rev | line source |
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1 /* |
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2 * Copyright (c) 2011, 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.nodes.java; |
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24 |
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25 import com.oracle.graal.api.meta.*; |
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26 import com.oracle.graal.compiler.common.type.*; |
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27 import com.oracle.graal.graph.*; |
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28 import com.oracle.graal.graph.spi.*; |
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29 import com.oracle.graal.nodeinfo.*; |
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30 import com.oracle.graal.nodes.*; |
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31 import com.oracle.graal.nodes.spi.*; |
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32 import com.oracle.graal.nodes.type.*; |
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33 |
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34 @NodeInfo |
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35 public class MethodCallTargetNode extends CallTargetNode implements IterableNodeType, Simplifiable { |
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36 protected final JavaType returnType; |
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37 |
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38 /** |
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39 * @param arguments |
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40 */ |
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41 public static MethodCallTargetNode create(InvokeKind invokeKind, ResolvedJavaMethod targetMethod, ValueNode[] arguments, JavaType returnType) { |
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42 return new MethodCallTargetNode(invokeKind, targetMethod, arguments, returnType); |
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43 } |
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44 |
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45 protected MethodCallTargetNode(InvokeKind invokeKind, ResolvedJavaMethod targetMethod, ValueNode[] arguments, JavaType returnType) { |
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46 super(arguments, targetMethod, invokeKind); |
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47 this.returnType = returnType; |
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48 } |
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49 |
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50 /** |
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51 * Gets the instruction that produces the receiver object for this invocation, if any. |
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52 * |
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53 * @return the instruction that produces the receiver object for this invocation if any, |
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54 * {@code null} if this invocation does not take a receiver object |
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55 */ |
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56 public ValueNode receiver() { |
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57 return isStatic() ? null : arguments().get(0); |
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58 } |
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59 |
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60 /** |
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61 * Checks whether this is an invocation of a static method. |
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62 * |
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63 * @return {@code true} if the invocation is a static invocation |
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64 */ |
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65 public boolean isStatic() { |
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66 return invokeKind() == InvokeKind.Static; |
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67 } |
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68 |
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69 public Kind returnKind() { |
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70 return targetMethod().getSignature().getReturnKind(); |
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71 } |
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72 |
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73 public Invoke invoke() { |
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74 return (Invoke) this.usages().first(); |
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75 } |
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76 |
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77 @Override |
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78 public boolean verify() { |
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79 assert usages().count() <= 1 : "call target may only be used by a single invoke"; |
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80 for (Node n : usages()) { |
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81 assertTrue(n instanceof Invoke, "call target can only be used from an invoke (%s)", n); |
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82 } |
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83 if (invokeKind().isDirect()) { |
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84 assertFalse(targetMethod().isAbstract(), "special calls or static calls are only allowed for concrete methods (%s)", targetMethod()); |
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85 } |
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86 if (invokeKind() == InvokeKind.Static) { |
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87 assertTrue(targetMethod().isStatic(), "static calls are only allowed for static methods (%s)", targetMethod()); |
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88 } else { |
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89 assertFalse(targetMethod().isStatic(), "static calls are only allowed for non-static methods (%s)", targetMethod()); |
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90 } |
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91 return super.verify(); |
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92 } |
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93 |
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94 @Override |
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95 public String toString(Verbosity verbosity) { |
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96 if (verbosity == Verbosity.Long) { |
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97 return super.toString(Verbosity.Short) + "(" + targetMethod() + ")"; |
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98 } else { |
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99 return super.toString(verbosity); |
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100 } |
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101 } |
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102 |
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103 @Override |
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104 public void simplify(SimplifierTool tool) { |
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105 if (invokeKind().isIndirect()) { |
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106 // attempt to devirtualize the call |
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107 |
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108 // check for trivial cases (e.g. final methods, nonvirtual methods) |
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109 if (targetMethod().canBeStaticallyBound()) { |
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110 setInvokeKind(InvokeKind.Special); |
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111 return; |
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112 } |
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113 |
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114 // check if the type of the receiver can narrow the result |
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115 ValueNode receiver = receiver(); |
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116 ResolvedJavaType type = StampTool.typeOrNull(receiver); |
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117 if (type == null && invokeKind == InvokeKind.Virtual) { |
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118 // For virtual calls, we are guaranteed to receive a correct receiver type. |
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119 type = targetMethod.getDeclaringClass(); |
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120 } |
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121 if (type != null && (invoke().stateAfter() != null || invoke().stateDuring() != null)) { |
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122 /* |
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123 * either the holder class is exact, or the receiver object has an exact type, or |
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124 * it's an array type |
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125 */ |
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126 ResolvedJavaMethod resolvedMethod = type.resolveConcreteMethod(targetMethod(), invoke().getContextType()); |
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127 if (resolvedMethod != null && (resolvedMethod.canBeStaticallyBound() || StampTool.isExactType(receiver) || type.isArray())) { |
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128 setInvokeKind(InvokeKind.Special); |
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129 setTargetMethod(resolvedMethod); |
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130 return; |
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131 } |
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132 if (tool.assumptions() != null && tool.assumptions().useOptimisticAssumptions()) { |
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133 ResolvedJavaType uniqueConcreteType = type.findUniqueConcreteSubtype(); |
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134 if (uniqueConcreteType != null) { |
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135 ResolvedJavaMethod methodFromUniqueType = uniqueConcreteType.resolveConcreteMethod(targetMethod(), invoke().getContextType()); |
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136 if (methodFromUniqueType != null) { |
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137 tool.assumptions().recordConcreteSubtype(type, uniqueConcreteType); |
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138 setInvokeKind(InvokeKind.Special); |
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139 setTargetMethod(methodFromUniqueType); |
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140 return; |
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141 } |
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142 } |
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143 |
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144 ResolvedJavaMethod uniqueConcreteMethod = type.findUniqueConcreteMethod(targetMethod()); |
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145 if (uniqueConcreteMethod != null) { |
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146 tool.assumptions().recordConcreteMethod(targetMethod(), type, uniqueConcreteMethod); |
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147 setInvokeKind(InvokeKind.Special); |
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148 setTargetMethod(uniqueConcreteMethod); |
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149 return; |
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150 } |
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151 } |
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152 } |
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153 // try to turn a interface call into a virtual call |
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154 ResolvedJavaType declaredReceiverType = targetMethod().getDeclaringClass(); |
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155 /* |
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156 * We need to check the invoke kind to avoid recursive simplification for virtual |
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157 * interface methods calls. |
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158 */ |
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159 if (declaredReceiverType.isInterface() && !invokeKind().equals(InvokeKind.Virtual)) { |
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160 tryCheckCastSingleImplementor(receiver, declaredReceiverType); |
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161 } |
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162 |
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163 if (invokeKind().equals(InvokeKind.Interface) && receiver instanceof UncheckedInterfaceProvider) { |
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164 UncheckedInterfaceProvider uncheckedInterfaceProvider = (UncheckedInterfaceProvider) receiver; |
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165 Stamp uncheckedStamp = uncheckedInterfaceProvider.uncheckedStamp(); |
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166 if (uncheckedStamp != null) { |
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167 ResolvedJavaType uncheckedReceiverType = StampTool.typeOrNull(uncheckedStamp); |
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168 if (uncheckedReceiverType.isInterface()) { |
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169 tryCheckCastSingleImplementor(receiver, uncheckedReceiverType); |
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170 } |
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171 } |
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172 } |
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173 } |
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174 } |
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175 |
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176 private void tryCheckCastSingleImplementor(ValueNode receiver, ResolvedJavaType declaredReceiverType) { |
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177 ResolvedJavaType singleImplementor = declaredReceiverType.getSingleImplementor(); |
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178 if (singleImplementor != null && !singleImplementor.equals(declaredReceiverType)) { |
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179 ResolvedJavaMethod singleImplementorMethod = singleImplementor.resolveMethod(targetMethod(), invoke().getContextType(), true); |
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180 if (singleImplementorMethod != null) { |
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181 assert graph().getGuardsStage().ordinal() < StructuredGraph.GuardsStage.FIXED_DEOPTS.ordinal() : "Graph already fixed!"; |
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182 /** |
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183 * We have an invoke on an interface with a single implementor. We can replace this |
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184 * with an invoke virtual. |
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185 * |
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186 * To do so we need to ensure two properties: 1) the receiver must implement the |
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187 * interface (declaredReceiverType). The verifier does not prove this so we need a |
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188 * dynamic check. 2) we need to ensure that there is still only one implementor of |
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189 * this interface, i.e. that we are calling the right method. We could do this with |
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190 * an assumption but as we need an instanceof check anyway we can verify both |
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191 * properties by checking of the receiver is an instance of the single implementor. |
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192 */ |
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193 LogicNode condition = graph().unique(InstanceOfNode.create(singleImplementor, receiver, getProfile())); |
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194 GuardNode guard = graph().unique( |
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195 GuardNode.create(condition, BeginNode.prevBegin(invoke().asNode()), DeoptimizationReason.OptimizedTypeCheckViolated, DeoptimizationAction.InvalidateRecompile, false, |
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196 JavaConstant.NULL_POINTER)); |
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197 PiNode piNode = graph().unique(PiNode.create(receiver, StampFactory.declaredNonNull(singleImplementor), guard)); |
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198 arguments().set(0, piNode); |
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199 setInvokeKind(InvokeKind.Virtual); |
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200 setTargetMethod(singleImplementorMethod); |
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201 } |
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202 } |
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203 } |
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204 |
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205 private JavaTypeProfile getProfile() { |
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206 assert !isStatic(); |
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207 if (receiver() instanceof TypeProfileProxyNode) { |
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208 // get profile from TypeProfileProxy |
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209 return ((TypeProfileProxyNode) receiver()).getProfile(); |
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210 } |
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211 // get profile from invoke() |
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212 ProfilingInfo profilingInfo = invoke().getContextMethod().getProfilingInfo(); |
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213 return profilingInfo.getTypeProfile(invoke().bci()); |
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214 } |
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Josef Eisl <josef.eisl@jku.at>
parents:
18244
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215 |
6409
823a2978e7ba
Lowering of call targets to direct / indirect call targets
Christian Wimmer <christian.wimmer@oracle.com>
parents:
5541
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216 @Override |
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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217 public Stamp returnStamp() { |
16564
688f84e397a3
Move the target method from MethodCallTargetNode and LoweredCallTargetNode to their superclass CallTargetNode
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
16563
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218 Kind returnKind = targetMethod().getSignature().getReturnKind(); |
5541
b4c406861c33
More renamings to drop Ri* prefix completely. Deleted graph.BitMap class and replaced with java.util.BitSet.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5540
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219 if (returnKind == Kind.Object && returnType instanceof ResolvedJavaType) { |
b4c406861c33
More renamings to drop Ri* prefix completely. Deleted graph.BitMap class and replaced with java.util.BitSet.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5540
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220 return StampFactory.declared((ResolvedJavaType) returnType); |
5283
8dd6165d7b73
compute returnStamp on demand in MethodCallTargetNode
Lukas Stadler <lukas.stadler@jku.at>
parents:
5061
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221 } else { |
8dd6165d7b73
compute returnStamp on demand in MethodCallTargetNode
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5061
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222 return StampFactory.forKind(returnKind); |
8dd6165d7b73
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Lukas Stadler <lukas.stadler@jku.at>
parents:
5061
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223 } |
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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224 } |
6409
823a2978e7ba
Lowering of call targets to direct / indirect call targets
Christian Wimmer <christian.wimmer@oracle.com>
parents:
5541
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225 |
7684
bbf97d6688d3
cleanup for the inlining policies
Christian Haeubl <haeubl@ssw.jku.at>
parents:
7310
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226 public JavaType returnType() { |
bbf97d6688d3
cleanup for the inlining policies
Christian Haeubl <haeubl@ssw.jku.at>
parents:
7310
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227 return returnType; |
bbf97d6688d3
cleanup for the inlining policies
Christian Haeubl <haeubl@ssw.jku.at>
parents:
7310
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228 } |
bbf97d6688d3
cleanup for the inlining policies
Christian Haeubl <haeubl@ssw.jku.at>
parents:
7310
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229 |
6409
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Lowering of call targets to direct / indirect call targets
Christian Wimmer <christian.wimmer@oracle.com>
parents:
5541
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230 @Override |
823a2978e7ba
Lowering of call targets to direct / indirect call targets
Christian Wimmer <christian.wimmer@oracle.com>
parents:
5541
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231 public String targetName() { |
823a2978e7ba
Lowering of call targets to direct / indirect call targets
Christian Wimmer <christian.wimmer@oracle.com>
parents:
5541
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232 if (targetMethod() == null) { |
823a2978e7ba
Lowering of call targets to direct / indirect call targets
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parents:
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233 return "??Invalid!"; |
823a2978e7ba
Lowering of call targets to direct / indirect call targets
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parents:
5541
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234 } |
16480
10c12d09a8d2
moved format(String format, JavaMethod method) from MetaUtil to be a default method in JavaMethod
Doug Simon <doug.simon@oracle.com>
parents:
16174
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235 return targetMethod().format("%h.%n"); |
6409
823a2978e7ba
Lowering of call targets to direct / indirect call targets
Christian Wimmer <christian.wimmer@oracle.com>
parents:
5541
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236 } |
7310
79a7b761755c
Added getLineNumberTable and getFileName capabilities.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
7123
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237 |
79a7b761755c
Added getLineNumberTable and getFileName capabilities.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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238 public static MethodCallTargetNode find(StructuredGraph graph, ResolvedJavaMethod method) { |
79a7b761755c
Added getLineNumberTable and getFileName capabilities.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
7123
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239 for (MethodCallTargetNode target : graph.getNodes(MethodCallTargetNode.class)) { |
16564
688f84e397a3
Move the target method from MethodCallTargetNode and LoweredCallTargetNode to their superclass CallTargetNode
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
16563
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changeset
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240 if (target.targetMethod().equals(method)) { |
7310
79a7b761755c
Added getLineNumberTable and getFileName capabilities.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
7123
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241 return target; |
79a7b761755c
Added getLineNumberTable and getFileName capabilities.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
7123
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242 } |
79a7b761755c
Added getLineNumberTable and getFileName capabilities.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
7123
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243 } |
79a7b761755c
Added getLineNumberTable and getFileName capabilities.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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244 return null; |
79a7b761755c
Added getLineNumberTable and getFileName capabilities.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
7123
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245 } |
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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246 } |