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annotate c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/HotSpotRuntime.java @ 1433:efba53f86c4f

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various fixes and enhancements * correct refmap->oopmap conversion (register numbering, stack slot numbering) * fixes for inlining (correct scoping in exception handler lookup, NPE in scope conversion) * support for "jump to runtime stub" (patching code needs to be aware of jmp instruction) * provide more information about methods (to allow inlining: has_balanced_monitors, etc.) * fixes to signature type lookup * isSubTypeOf: correct handling of array classes * RiType: componentType/arrayOf * prologue: inline cache check, icmiss stub * klass state check (resolved but not initialized) in newinstance * card table write barriers * c1x classes are optional (to allow running c1 without them) * correct for stored frame pointer in calling conventions (methods with arguments on stack) * getType(Class<?>) for some basic types, used for optimizations and folding * RiMethod/RiType: throw exception instead of silent failure on unsupported operations * RiType: resolved/unresolved array type support * refactoring: new on-demand template generation mechanism * optimizations: template specialization for no_null_check, given length, etc.
author Lukas Stadler <lukas.stadler@oracle.com>
date Thu, 16 Sep 2010 19:42:20 -0700
parents 760213a60e8b
children 72cfb36c6bb2
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1 /*
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2 * Copyright (c) 2009-2010 Sun Microsystems, Inc. All rights reserved.
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3 *
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4 * Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product that is
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5 * described in this document. In particular, and without limitation, these intellectual property rights may include one
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6 * or more of the U.S. patents listed at http://www.sun.com/patents and one or more additional patents or pending patent
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7 * applications in the U.S. and in other countries.
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8 *
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9 * U.S. Government Rights - Commercial software. Government users are subject to the Sun Microsystems, Inc. standard
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10 * license agreement and applicable provisions of the FAR and its supplements.
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11 *
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12 * Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or registered
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13 * trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks are used under license and
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14 * are trademarks or registered trademarks of SPARC International, Inc. in the U.S. and other countries.
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15 *
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16 * UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open Company, Ltd.
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17 */
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18 package com.sun.hotspot.c1x;
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19
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20 import java.io.*;
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21 import java.lang.reflect.*;
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22
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23 import com.sun.cri.ci.*;
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24 import com.sun.cri.ci.CiTargetMethod.Call;
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25 import com.sun.cri.ci.CiTargetMethod.DataPatch;
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26 import com.sun.cri.ci.CiTargetMethod.Safepoint;
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27 import com.sun.cri.ri.*;
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28 import com.sun.max.asm.*;
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29 import com.sun.max.asm.dis.*;
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30 import com.sun.max.lang.*;
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31
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32 /**
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33 * CRI runtime implementation for the HotSpot VM.
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34 *
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35 * @author Thomas Wuerthinger, Lukas Stadler
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36 */
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37 public class HotSpotRuntime implements RiRuntime {
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38
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39 private final HotSpotVMConfig config;
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40
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41 public static enum Entrypoints {
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42 UNVERIFIED, VERIFIED
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43 }
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44
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45 public HotSpotRuntime(HotSpotVMConfig config) {
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46 this.config = config;
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47 }
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48
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49 @Override
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50 public int basicObjectLockOffsetInBytes() {
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51 return 0;
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52 }
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53
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54 @Override
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55 public int codeOffset() {
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56 return 0;
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57 }
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58
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59 @Override
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60 public String disassemble(byte[] code) {
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61 return disassemble(code, new DisassemblyPrinter(false));
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62 }
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63
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64 private String disassemble(byte[] code, DisassemblyPrinter disassemblyPrinter) {
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65 final ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
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66 final InstructionSet instructionSet = InstructionSet.AMD64;
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67 Disassembler.disassemble(byteArrayOutputStream, code, instructionSet, WordWidth.BITS_64, 0, null, disassemblyPrinter);
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68 return byteArrayOutputStream.toString();
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69 }
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70
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71 @Override
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72 public String disassemble(final CiTargetMethod targetMethod) {
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73
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74 final DisassemblyPrinter disassemblyPrinter = new DisassemblyPrinter(false) {
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75
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76 private String toString(Call call) {
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77 if (call.runtimeCall != null) {
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78 return "{" + call.runtimeCall.name() + "}";
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79 } else if (call.symbol != null) {
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80 return "{" + call.symbol + "}";
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81 } else if (call.globalStubID != null) {
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82 return "{" + call.globalStubID + "}";
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83 } else {
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84 return "{" + call.method + "}";
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85 }
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86 }
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87
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88 private String siteInfo(int pcOffset) {
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89 for (Call call : targetMethod.directCalls) {
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90 if (call.pcOffset == pcOffset) {
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91 return toString(call);
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92 }
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93 }
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94 for (Call call : targetMethod.indirectCalls) {
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95 if (call.pcOffset == pcOffset) {
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96 return toString(call);
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97 }
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98 }
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99 for (Safepoint site : targetMethod.safepoints) {
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100 if (site.pcOffset == pcOffset) {
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101 return "{safepoint}";
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102 }
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103 }
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104 for (DataPatch site : targetMethod.dataReferences) {
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105 if (site.pcOffset == pcOffset) {
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106 return "{" + site.constant + "}";
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107 }
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108 }
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109 return null;
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110 }
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111
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112 @Override
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113 protected String disassembledObjectString(Disassembler disassembler, DisassembledObject disassembledObject) {
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114 final String string = super.disassembledObjectString(disassembler, disassembledObject);
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115
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116 String site = siteInfo(disassembledObject.startPosition());
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117 if (site != null) {
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118 return string + " " + site;
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119 }
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120 return string;
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121 }
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122 };
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123 return disassemble(targetMethod.targetCode(), disassemblyPrinter);
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124 }
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125
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126 @Override
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127 public String disassemble(RiMethod method) {
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128 return "No disassembler available";
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129 }
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130
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131 @Override
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132 public RiConstantPool getConstantPool(RiMethod method) {
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133 return ((HotSpotTypeResolved) method.holder()).constantPool();
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134 }
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135
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136 @Override
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137 public RiOsrFrame getOsrFrame(RiMethod method, int bci) {
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138 return null;
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139 }
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140
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141 @Override
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142 public RiType getRiType(Class<?> javaClass) {
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143 if (javaClass == Object[].class || javaClass == Long.class || javaClass == Integer.class || javaClass == Throwable.class) {
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144 return Compiler.getVMEntries().getType(javaClass);
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145 }
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146 throw new UnsupportedOperationException("unexpected class in getRiType: " + javaClass);
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147 }
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148
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149 @Override
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150 public RiSnippets getSnippets() {
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151 throw new UnsupportedOperationException("getSnippets");
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152 }
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153
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154 @Override
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155 public boolean mustInline(RiMethod method) {
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156 return false;
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157 }
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158
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159 @Override
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160 public boolean mustNotCompile(RiMethod method) {
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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 mustNotInline(RiMethod method) {
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166 if (Modifier.isNative(method.accessFlags()))
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167 return true;
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168 return false;
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169 }
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170
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171 @Override
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172 public Object registerGlobalStub(CiTargetMethod targetMethod, String name) {
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173 return HotSpotTargetMethod.installStub(targetMethod, name);
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174 }
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175
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176 @Override
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177 public int sizeofBasicObjectLock() {
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178 // TODO Auto-generated method stub
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179 return 0;
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180 }
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181
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182 @Override
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183 public RiField getRiField(Field javaField) {
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184 throw new UnsupportedOperationException("getRiField");
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185 }
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186
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187 @Override
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188 public RiMethod getRiMethod(Method javaMethod) {
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189 throw new UnsupportedOperationException("getRiMethod");
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190 }
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191
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192 @Override
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193 public RiMethod getRiMethod(Constructor<?> javaConstructor) {
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194 throw new UnsupportedOperationException("getRiMethod");
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195 }
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196
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197 @Override
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198 public CiConstant invoke(RiMethod method, CiMethodInvokeArguments args) {
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199 return null;
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200 }
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201
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202 @Override
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203 public CiConstant foldWordOperation(int opcode, CiMethodInvokeArguments args) {
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204 throw new UnsupportedOperationException("foldWordOperation");
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205 }
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206
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207 @Override
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208 public boolean compareConstantObjects(Object x, Object y) {
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209 if (x == null && y == null) {
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210 return true;
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211 } else if (x == null || y == null) {
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212 return false;
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213 } else if (x instanceof Long && y instanceof Long) {
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214 return (Long) x == (long) (Long) y;
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215 }
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216 throw new UnsupportedOperationException("compareConstantObjects: " + x + ", " + y);
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217 }
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218
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219 @Override
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220 public boolean recordLeafMethodAssumption(RiMethod method) {
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221 return false;
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222 }
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223
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224 }