Mercurial > hg > graal-compiler
annotate graal/com.oracle.max.graal.nodes/src/com/oracle/max/graal/nodes/java/MethodCallTargetNode.java @ 4309:4a609a685fa4
changes to Node structures:
* add more uses of higher-level graph manipulation methods
* CanonicalierPhase cleanup
* introduce FloatingReadNode, make ReadNode an ordinary fixed nodeToBlock
* let Canonicalizable.canonical return ValueNode (instead of Node)
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Tue, 17 Jan 2012 19:45:39 +0100 |
parents | aaac4894175c |
children | cd2b68ef8e23 |
rev | line source |
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1 /* |
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2 * Copyright (c) 2011, 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.max.graal.nodes.java; |
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24 |
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25 import com.oracle.max.cri.ci.*; |
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26 import com.oracle.max.cri.ri.*; |
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27 import com.oracle.max.graal.graph.*; |
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28 import com.oracle.max.graal.nodes.*; |
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29 import com.oracle.max.graal.nodes.spi.*; |
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30 import com.oracle.max.graal.nodes.type.*; |
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31 |
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32 public class MethodCallTargetNode extends CallTargetNode implements Node.IterableNodeType, Canonicalizable { |
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33 public enum InvokeKind { |
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34 Interface, |
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35 Special, |
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36 Static, |
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37 Virtual |
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38 } |
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39 |
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40 @Data private final RiType returnType; |
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41 @Data private RiResolvedMethod targetMethod; |
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42 @Data private InvokeKind invokeKind; |
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43 private final Stamp returnStamp; |
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44 |
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45 /** |
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46 * @param arguments |
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47 */ |
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48 public MethodCallTargetNode(InvokeKind invokeKind, RiResolvedMethod targetMethod, ValueNode[] arguments, RiType returnType) { |
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49 super(arguments); |
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50 this.invokeKind = invokeKind; |
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51 this.returnType = returnType; |
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52 this.targetMethod = targetMethod; |
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53 CiKind returnKind = targetMethod.signature().returnKind(false); |
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54 if (returnKind == CiKind.Object && returnType instanceof RiResolvedType) { |
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55 returnStamp = StampFactory.declared((RiResolvedType) returnType); |
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56 } else { |
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57 returnStamp = StampFactory.forKind(returnKind); |
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58 } |
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59 } |
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60 |
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61 @Override |
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62 public RiType returnType() { |
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63 return returnType; |
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64 } |
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65 |
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66 /** |
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67 * Gets the target method for this invocation instruction. |
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68 * @return the target method |
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69 */ |
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70 public RiResolvedMethod targetMethod() { |
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71 return targetMethod; |
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72 } |
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73 |
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74 public InvokeKind invokeKind() { |
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75 return invokeKind; |
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76 } |
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77 |
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78 public void setInvokeKind(InvokeKind kind) { |
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79 this.invokeKind = kind; |
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80 } |
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81 |
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82 public void setTargetMethod(RiResolvedMethod method) { |
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83 targetMethod = method; |
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84 } |
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85 |
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86 /** |
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87 * Gets the instruction that produces the receiver object for this invocation, if any. |
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88 * @return the instruction that produces the receiver object for this invocation if any, {@code null} if this |
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89 * invocation does not take a receiver object |
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90 */ |
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91 public ValueNode receiver() { |
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92 return isStatic() ? null : arguments().get(0); |
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93 } |
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94 |
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95 /** |
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96 * Checks whether this is an invocation of a static method. |
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97 * @return {@code true} if the invocation is a static invocation |
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98 */ |
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99 public boolean isStatic() { |
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100 return invokeKind() == InvokeKind.Static; |
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101 } |
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102 |
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103 @Override |
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104 public CiKind returnKind() { |
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105 return targetMethod().signature().returnKind(false); |
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106 } |
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107 |
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108 public Invoke invoke() { |
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109 if (this.usages().size() == 0) { |
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110 return null; |
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111 } |
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112 return (Invoke) this.usages().iterator().next(); |
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113 } |
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114 |
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115 |
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116 @Override |
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117 public boolean verify() { |
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118 assert usages().size() <= 1 : "call target may only be used by a single invoke"; |
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119 for (Node n : usages()) { |
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120 assertTrue(n instanceof Invoke, "call target can only be used from an invoke (%s)", n); |
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121 } |
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122 return super.verify(); |
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123 } |
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124 |
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125 @Override |
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126 public String toString(Verbosity verbosity) { |
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127 if (verbosity == Verbosity.Long) { |
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128 return super.toString(Verbosity.Short) + "(" + targetMethod() + ")"; |
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129 } else { |
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130 return super.toString(verbosity); |
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131 } |
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132 } |
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133 |
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134 @Override |
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135 public ValueNode canonical(CanonicalizerTool tool) { |
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136 if (!isStatic()) { |
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137 ValueNode receiver = receiver(); |
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138 if (receiver != null && receiver.exactType() != null) { |
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139 if (invokeKind == InvokeKind.Interface) { |
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140 invokeKind = InvokeKind.Virtual; |
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141 targetMethod = receiver.exactType().resolveMethodImpl(targetMethod); |
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142 } |
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143 if (receiver.isConstant() && invokeKind == InvokeKind.Virtual) { |
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144 invokeKind = InvokeKind.Special; |
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145 targetMethod = receiver.exactType().resolveMethodImpl(targetMethod); |
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146 } |
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147 } |
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148 } |
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149 return this; |
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150 } |
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151 |
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152 public Stamp returnStamp() { |
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153 return returnStamp; |
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154 } |
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155 } |