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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/MethodCallTargetNode.java @ 5504:452f91ebdb54

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Moved RiKind to cri.ri package.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Thu, 07 Jun 2012 17:09:57 +0200
parents 438ab53efdd0
children dc71b06d09f8
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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.graal.nodes.java;
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24
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25 import com.oracle.max.cri.ri.*;
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26 import com.oracle.graal.graph.*;
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27 import com.oracle.graal.nodes.*;
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28 import com.oracle.graal.nodes.spi.*;
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29 import com.oracle.graal.nodes.type.*;
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31 public class MethodCallTargetNode extends CallTargetNode implements Node.IterableNodeType, Canonicalizable {
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32 public enum InvokeKind {
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33 Interface,
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34 Special,
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35 Static,
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36 Virtual
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37 }
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38
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39 private final RiType returnType;
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40 private RiResolvedMethod targetMethod;
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41 private InvokeKind invokeKind;
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42
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43 /**
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44 * @param arguments
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45 */
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46 public MethodCallTargetNode(InvokeKind invokeKind, RiResolvedMethod targetMethod, ValueNode[] arguments, RiType returnType) {
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47 super(arguments);
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48 this.invokeKind = invokeKind;
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49 this.returnType = returnType;
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50 this.targetMethod = targetMethod;
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51 }
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52
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53 @Override
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54 public RiType returnType() {
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55 return returnType;
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56 }
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57
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58 /**
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59 * Gets the target method for this invocation instruction.
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60 * @return the target method
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61 */
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62 public RiResolvedMethod targetMethod() {
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63 return targetMethod;
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64 }
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65
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66 public InvokeKind invokeKind() {
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67 return invokeKind;
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68 }
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69
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70 public void setInvokeKind(InvokeKind kind) {
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71 this.invokeKind = kind;
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72 }
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73
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74 public void setTargetMethod(RiResolvedMethod method) {
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75 targetMethod = method;
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76 }
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77
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78 /**
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79 * Gets the instruction that produces the receiver object for this invocation, if any.
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80 * @return the instruction that produces the receiver object for this invocation if any, {@code null} if this
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81 * invocation does not take a receiver object
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82 */
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83 public ValueNode receiver() {
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84 return isStatic() ? null : arguments().get(0);
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85 }
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86
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87 /**
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88 * Checks whether this is an invocation of a static method.
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89 * @return {@code true} if the invocation is a static invocation
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90 */
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91 public boolean isStatic() {
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92 return invokeKind() == InvokeKind.Static;
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93 }
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94
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95 @Override
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96 public RiKind returnKind() {
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97 return targetMethod().signature().returnKind(false);
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98 }
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99
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100 public Invoke invoke() {
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101 return (Invoke) this.usages().first();
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102 }
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103
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104
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105 @Override
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106 public boolean verify() {
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107 assert usages().size() <= 1 : "call target may only be used by a single invoke";
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108 for (Node n : usages()) {
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109 assertTrue(n instanceof Invoke, "call target can only be used from an invoke (%s)", n);
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110 }
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111 return super.verify();
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112 }
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113
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114 @Override
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115 public String toString(Verbosity verbosity) {
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116 if (verbosity == Verbosity.Long) {
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117 return super.toString(Verbosity.Short) + "(" + targetMethod() + ")";
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118 } else {
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119 return super.toString(verbosity);
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120 }
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121 }
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122
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123 @Override
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124 public ValueNode canonical(CanonicalizerTool tool) {
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125 if (!isStatic()) {
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126 ValueNode receiver = receiver();
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127 if (receiver != null && receiver.objectStamp().isExactType()) {
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128 if (invokeKind == InvokeKind.Interface || invokeKind == InvokeKind.Virtual) {
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129 RiResolvedMethod method = receiver.objectStamp().type().resolveMethodImpl(targetMethod);
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130 if (method != null) {
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131 invokeKind = InvokeKind.Special;
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132 targetMethod = method;
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133 }
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134 }
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135 }
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136 }
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137 return this;
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138 }
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139
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140 public Stamp returnStamp() {
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141 RiKind returnKind = targetMethod.signature().returnKind(false);
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142 if (returnKind == RiKind.Object && returnType instanceof RiResolvedType) {
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143 return StampFactory.declared((RiResolvedType) returnType);
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144 } else {
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145 return StampFactory.forKind(returnKind);
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146 }
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147 }
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148 }