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annotate c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/HotSpotXirGenerator.java @ 1422:3483ec571caf

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* using reflected objects instead of oops * removed scratch from allocatable registers * instanceof xir snippet * arraylength xir snippet * exceptionobject xir snippet * VMEntries and VMExits as interfaces * calls to VMEntries and VMExits are routet through logging proxies
author Lukas Stadler <lukas.stadler@oracle.com>
date Mon, 02 Aug 2010 15:44:38 -0700
parents 6223633ce7dd
children 760213a60e8b
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1 /*
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2 * Copyright (c) 2009 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.lang.reflect.Modifier;
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21 import java.util.ArrayList;
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22 import java.util.List;
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23
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24 import com.sun.c1x.target.amd64.*;
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25 import com.sun.cri.ci.CiKind;
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26 import com.sun.cri.ri.RiField;
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27 import com.sun.cri.ri.RiMethod;
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28 import com.sun.cri.ri.RiRegisterConfig;
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29 import com.sun.cri.ri.RiType;
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30 import com.sun.cri.ri.RiType.Representation;
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31 import com.sun.cri.xir.*;
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32 import com.sun.cri.xir.CiXirAssembler.*;
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33
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34 /**
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35 *
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36 * @author Thomas Wuerthinger
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37 *
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38 */
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39 public class HotSpotXirGenerator extends RiXirGenerator {
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40
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41 private final HotSpotVMConfig config;
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42 private CiXirAssembler asm;
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43 private final RiRegisterConfig registerConfig;
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44
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45 private XirTemplate[] emptyTemplates = new XirTemplate[CiKind.values().length];
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46 private XirTemplate prologueTemplate;
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47 private XirTemplate staticPrologueTemplate;
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48 private XirTemplate epilogueTemplate;
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49 private XirTemplate arrayLengthTemplate;
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50 private XirTemplate exceptionObjectTemplate;
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51
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52 static class XirPair {
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53
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54 final XirTemplate resolved;
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55 final XirTemplate unresolved;
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56
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57 XirPair(XirTemplate resolved, XirTemplate unresolved) {
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58 this.resolved = resolved;
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59 this.unresolved = unresolved;
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60 }
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61 }
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62
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63 private XirPair[] putFieldTemplates;
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64 private XirPair[] getFieldTemplates;
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65 private XirPair[] putStaticFieldTemplates;
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66 private XirPair[] getStaticFieldTemplates;
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67 private XirPair instanceofTemplate;
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68 private XirPair instanceofTemplateNonnull;
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69
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70 public HotSpotXirGenerator(HotSpotVMConfig config, RiRegisterConfig registerConfig) {
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71 this.config = config;
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72 this.registerConfig = registerConfig;
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73 }
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74
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75 @Override
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76 public List<XirTemplate> buildTemplates(CiXirAssembler asm) {
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77 this.asm = asm;
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78
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79 putFieldTemplates = new XirPair[CiKind.values().length];
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80 getFieldTemplates = new XirPair[CiKind.values().length];
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81 putStaticFieldTemplates = new XirPair[CiKind.values().length];
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82 getStaticFieldTemplates = new XirPair[CiKind.values().length];
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83
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84 List<XirTemplate> templates = new ArrayList<XirTemplate>();
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85 for (int index = 0; index < CiKind.values().length; index++) {
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86
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87 CiKind kind = CiKind.values()[index];
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88
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89 if (kind == CiKind.Float || kind == CiKind.Double)
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90 continue;
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91
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92 if (CiKind.values()[index] == CiKind.Void) {
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93 asm.restart(CiKind.values()[index]);
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94 emptyTemplates[index] = asm.finishTemplate("empty-" + CiKind.values()[index]);
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95 } else {
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96 asm.restart();
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97 XirOperand result = asm.createTemp("result", CiKind.values()[index]);
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98 emptyTemplates[index] = asm.finishTemplate(result, "empty-" + CiKind.values()[index]);
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99
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100 putFieldTemplates[index] = buildPutFieldTemplate(kind, kind == CiKind.Object, false);
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101 getFieldTemplates[index] = buildGetFieldTemplate(kind, false);
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102 putStaticFieldTemplates[index] = buildPutFieldTemplate(kind, kind == CiKind.Object, true);
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103 getStaticFieldTemplates[index] = buildGetFieldTemplate(kind, true);
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104 // arrayLoadTemplates[index] = buildArrayLoad(kind, asm, true);
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105 // arrayStoreTemplates[index] = buildArrayStore(kind, asm, true, kind == CiKind.Object, kind == CiKind.Object);
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106 // newArrayTemplates[index] = buildNewArray(kind);
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107 }
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108 templates.add(emptyTemplates[index]);
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109 }
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110 prologueTemplate = buildPrologue(false);
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111 staticPrologueTemplate = buildPrologue(true);
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112 epilogueTemplate = buildEpilogue();
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113 arrayLengthTemplate = buildArrayLength();
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114 exceptionObjectTemplate = buildExceptionObject();
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115 instanceofTemplate = buildInstanceof(false);
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116 instanceofTemplateNonnull = buildInstanceof(true);
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117
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118 return templates;
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119 }
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120
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121 private XirTemplate buildPrologue(boolean staticMethod) {
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122 asm.restart(CiKind.Void);
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123 XirOperand sp = asm.createRegister("stack pointer", CiKind.Word, registerConfig.getStackPointerRegister());
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124 XirOperand temp = asm.createRegister("temp (rax)", CiKind.Int, AMD64.rax);
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125
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126 asm.align(config.codeEntryAlignment);
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127 asm.entrypoint(HotSpotRuntime.Entrypoints.UNVERIFIED);
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128 if (!staticMethod) {
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129 // TODO do some checking...
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130 asm.add(temp, temp, asm.i(1));
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131 asm.sub(temp, temp, asm.i(1));
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132 asm.shouldNotReachHere();
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133
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134 asm.align(config.codeEntryAlignment);
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135 }
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136 asm.entrypoint(HotSpotRuntime.Entrypoints.VERIFIED);
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137 // stack banging
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138 asm.pstore(CiKind.Word, sp, asm.i(-config.stackShadowPages * config.vmPageSize), temp, true);
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139 asm.pushFrame();
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140
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141 return asm.finishTemplate(staticMethod ? "static prologue" : "prologue");
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142 }
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143
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144 private XirTemplate buildEpilogue() {
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145 asm.restart(CiKind.Void);
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146 asm.popFrame();
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147 // TODO safepoint check
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148 return asm.finishTemplate("epilogue");
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149 }
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150
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151 private XirTemplate buildArrayLength() {
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152 XirOperand result = asm.restart(CiKind.Int);
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153 XirParameter object = asm.createInputParameter("object", CiKind.Object);
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154 asm.pload(CiKind.Int, result, object, asm.i(config.arrayLengthOffset), true);
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155 return asm.finishTemplate("arrayLength");
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156 }
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157
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158 private XirTemplate buildExceptionObject() {
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159 asm.restart();
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160 XirOperand temp = asm.createRegister("temp (rax)", CiKind.Object, AMD64.rax);
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161 return asm.finishTemplate(temp, "exception object");
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162 }
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163
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164 private XirPair buildGetFieldTemplate(CiKind kind, boolean isStatic) {
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165 final XirTemplate resolved;
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166 final XirTemplate unresolved;
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167 {
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168 // resolved case
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169 XirOperand result = asm.restart(kind);
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170 XirParameter object = asm.createInputParameter("object", CiKind.Object);
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171 XirParameter fieldOffset = asm.createConstantInputParameter("fieldOffset", CiKind.Int);
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172 asm.pload(kind, result, object, fieldOffset, true);
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173 resolved = asm.finishTemplate("getfield<" + kind + ">");
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174 }
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175 if (isStatic) {
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176 asm.restart(kind);
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177 asm.shouldNotReachHere();
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178 /*
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179 * XirParameter object = asm.createInputParameter("object", CiKind.Object); XirParameter guard =
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180 * asm.createInputParameter("guard", CiKind.Object); XirOperand fieldOffset = asm.createTemp("fieldOffset",
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181 * CiKind.Int); if (isStatic) { callRuntimeThroughStub(asm, "resolveGetStatic", fieldOffset, guard); } else
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182 * { callRuntimeThroughStub(asm, "resolveGetField", fieldOffset, guard); } asm.pload(kind, result, object,
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183 * fieldOffset, true);
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184 */
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185
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186 unresolved = asm.finishTemplate("getfield<" + kind + ">-unresolved");
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187 } else {
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188 unresolved = null;
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189 }
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190 return new XirPair(resolved, unresolved);
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191 }
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192
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193 private XirPair buildPutFieldTemplate(CiKind kind, boolean genWriteBarrier, boolean isStatic) {
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194 final XirTemplate resolved;
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195 final XirTemplate unresolved;
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196 {
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197 // resolved case
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198 asm.restart(CiKind.Void);
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199 XirParameter object = asm.createInputParameter("object", CiKind.Object);
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200 XirParameter value = asm.createInputParameter("value", kind);
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201 XirParameter fieldOffset = asm.createConstantInputParameter("fieldOffset", CiKind.Int);
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202 asm.pstore(kind, object, fieldOffset, value, true);
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203 if (genWriteBarrier) {
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204 // TODO write barrier
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205 // addWriteBarrier(asm, object, value);
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206 }
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207 resolved = asm.finishTemplate("putfield<" + kind + ", " + genWriteBarrier + ">");
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208 }
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209 if (isStatic) {
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210 // unresolved case
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211 asm.restart(CiKind.Void);
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212 asm.shouldNotReachHere();
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diff changeset
213 /*
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214 * XirParameter object = asm.createInputParameter("object", CiKind.Object); XirParameter value =
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215 * asm.createInputParameter("value", kind); XirParameter guard = asm.createInputParameter("guard",
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216 * CiKind.Object); XirOperand fieldOffset = asm.createTemp("fieldOffset", CiKind.Int); if (isStatic) {
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217 * callRuntimeThroughStub(asm, "resolvePutStatic", fieldOffset, guard); } else { callRuntimeThroughStub(asm,
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218 * "resolvePutField", fieldOffset, guard); } asm.pstore(kind, object, fieldOffset, value, true); if
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219 * (genWriteBarrier) { addWriteBarrier(asm, object, value); }
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220 */
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221 unresolved = asm.finishTemplate("putfield<" + kind + ", " + genWriteBarrier + ">-unresolved");
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222 } else {
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223 unresolved = null;
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224 }
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225 return new XirPair(resolved, unresolved);
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226 }
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227
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228 private XirPair buildInstanceof(boolean nonnull) {
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229 XirTemplate resolved;
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230 XirTemplate unresolved;
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231 {
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232 XirOperand result = asm.restart(CiKind.Boolean);
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233
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234 XirParameter object = asm.createInputParameter("object", CiKind.Object);
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235 XirParameter hub = asm.createConstantInputParameter("hub", CiKind.Object);
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236 XirOperand temp = asm.createTemp("temp", CiKind.Object);
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237 XirLabel end = asm.createInlineLabel("end");
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238 XirLabel slow_path = asm.createOutOfLineLabel("slow path");
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239
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240 asm.mov(result, asm.b(false));
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241 if (!nonnull) {
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242 // first check for null
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243 asm.jeq(end, object, asm.o(null));
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244 }
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245 asm.pload(CiKind.Object, temp, object, asm.i(config.hubOffset), !nonnull);
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246 asm.mov(result, asm.b(true));
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247 asm.jneq(slow_path, temp, hub);
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248
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249 asm.bindInline(end);
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250
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251 asm.bindOutOfLine(slow_path);
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252 asm.push(temp);
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253 asm.push(hub);
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254 asm.callRuntime(config.instanceofStub, result);
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255 asm.pop(hub);
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256 asm.pop(result);
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257 asm.jmp(end);
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258 resolved = asm.finishTemplate("instanceof-leaf<" + nonnull + ">");
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259 }
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260 {/*
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261 * // unresolved instanceof unresolved = buildUnresolvedInstanceOf(nonnull);
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262 */
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263 asm.restart(CiKind.Boolean);
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264 XirParameter object = asm.createInputParameter("object", CiKind.Object);
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265 asm.shouldNotReachHere();
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266 unresolved = asm.finishTemplate("instanceof-leaf<" + nonnull + ">");
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267 }
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268 return new XirPair(resolved, unresolved);
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269 }
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270
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271 @Override
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272 public XirSnippet genArrayLength(XirSite site, XirArgument array) {
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273 return new XirSnippet(arrayLengthTemplate, array);
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274 }
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275
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276 @Override
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277 public XirSnippet genArrayLoad(XirSite site, XirArgument array, XirArgument index, XirArgument length, CiKind elementKind, RiType elementType) {
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278 return new XirSnippet(emptyTemplates[elementKind.ordinal()]);
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279 }
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280
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281 @Override
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282 public XirSnippet genArrayStore(XirSite site, XirArgument array, XirArgument index, XirArgument length, XirArgument value, CiKind elementKind, RiType elementType) {
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283 return new XirSnippet(emptyTemplates[CiKind.Void.ordinal()]);
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284 }
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285
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286 @Override
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287 public XirSnippet genCheckCast(XirSite site, XirArgument receiver, XirArgument hub, RiType type) {
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288 return new XirSnippet(emptyTemplates[CiKind.Object.ordinal()]);
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289 }
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290
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291 @Override
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292 public XirSnippet genPrologue(XirSite site, RiMethod method) {
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293 boolean staticMethod = Modifier.isStatic(method.accessFlags());
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294 return new XirSnippet(staticMethod ? staticPrologueTemplate : prologueTemplate);
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295 }
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296
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297 @Override
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298 public XirSnippet genEpilogue(XirSite site, RiMethod method) {
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299 return new XirSnippet(epilogueTemplate);
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300 }
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301
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302 @Override
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303 public XirSnippet genGetField(XirSite site, XirArgument receiver, RiField field) {
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304 XirPair pair = getStaticFieldTemplates[field.kind().ordinal()];
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305 assert field.isResolved() : "getfield doesn't expect unresolved fields";
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306 XirArgument offset = XirArgument.forInt(((HotSpotField) field).offset());
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307 return new XirSnippet(pair.resolved, receiver, offset);
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308 }
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309
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310 @Override
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311 public XirSnippet genGetStatic(XirSite site, XirArgument staticTuple, RiField field) {
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312 XirPair pair = getStaticFieldTemplates[field.kind().ordinal()];
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diff changeset
313 if (field.isResolved()) {
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314 XirArgument offset = XirArgument.forInt(((HotSpotField) field).offset());
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315 return new XirSnippet(pair.resolved, staticTuple, offset);
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316 }
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317 return new XirSnippet(pair.unresolved, staticTuple, null);
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318 }
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diff changeset
319
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diff changeset
320 @Override
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321 public XirSnippet genPutField(XirSite site, XirArgument receiver, RiField field, XirArgument value) {
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322 XirPair pair = putFieldTemplates[field.kind().ordinal()];
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diff changeset
323 assert field.isResolved() : "putfield doesn't expect unresolved fields";
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324 XirArgument offset = XirArgument.forInt(((HotSpotField) field).offset());
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diff changeset
325 return new XirSnippet(pair.resolved, receiver, value, offset);
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326 }
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diff changeset
327
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diff changeset
328 @Override
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diff changeset
329 public XirSnippet genPutStatic(XirSite site, XirArgument staticTuple, RiField field, XirArgument value) {
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diff changeset
330 XirPair pair = putFieldTemplates[field.kind().ordinal()];
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diff changeset
331 if (field.isResolved()) {
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332 XirArgument offset = XirArgument.forInt(((HotSpotField) field).offset());
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diff changeset
333 return new XirSnippet(pair.resolved, staticTuple, value, offset);
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334 }
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diff changeset
335 return new XirSnippet(pair.unresolved, staticTuple, value);
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336 }
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337
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338 @Override
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diff changeset
339 public XirSnippet genInstanceOf(XirSite site, XirArgument receiver, XirArgument hub, RiType type) {
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340 if (type.isResolved()) {
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341 return new XirSnippet(instanceofTemplate.resolved, receiver, hub);
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342 }
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343 // XirArgument guard = guardFor(type, ResolveClass.SNIPPET);
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344 return new XirSnippet(instanceofTemplate.unresolved, receiver);
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345 }
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346
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347 @Override
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348 public XirSnippet genIntrinsic(XirSite site, XirArgument[] arguments, RiMethod method) {
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349 return null;
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350 }
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351
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352 @Override
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353 public XirSnippet genInvokeInterface(XirSite site, XirArgument receiver, RiMethod method) {
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354 return new XirSnippet(emptyTemplates[CiKind.Word.ordinal()]);
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355 }
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356
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357 @Override
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358 public XirSnippet genInvokeSpecial(XirSite site, XirArgument receiver, RiMethod method) {
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359 return new XirSnippet(emptyTemplates[CiKind.Word.ordinal()]);
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360 }
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361
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362 @Override
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363 public XirSnippet genInvokeStatic(XirSite site, RiMethod method) {
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364 return new XirSnippet(emptyTemplates[CiKind.Word.ordinal()]);
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365 }
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366
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367 @Override
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368 public XirSnippet genInvokeVirtual(XirSite site, XirArgument receiver, RiMethod method) {
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369 return new XirSnippet(emptyTemplates[CiKind.Word.ordinal()]);
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370 }
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371
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372 @Override
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373 public XirSnippet genMonitorEnter(XirSite site, XirArgument receiver) {
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374 return new XirSnippet(emptyTemplates[CiKind.Void.ordinal()]);
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375 }
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376
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377 @Override
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378 public XirSnippet genMonitorExit(XirSite site, XirArgument receiver) {
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379 return new XirSnippet(emptyTemplates[CiKind.Void.ordinal()]);
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380 }
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381
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382 @Override
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383 public XirSnippet genNewArray(XirSite site, XirArgument length, CiKind elementKind, RiType componentType, RiType arrayType) {
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384 return new XirSnippet(emptyTemplates[CiKind.Object.ordinal()]);
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385 }
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386
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387 @Override
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388 public XirSnippet genNewInstance(XirSite site, RiType type) {
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389 return new XirSnippet(emptyTemplates[CiKind.Object.ordinal()]);
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390 }
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391
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392 @Override
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393 public XirSnippet genNewMultiArray(XirSite site, XirArgument[] lengths, RiType type) {
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394 return new XirSnippet(emptyTemplates[CiKind.Object.ordinal()]);
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395 }
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396
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397 @Override
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398 public XirSnippet genResolveClass(XirSite site, RiType type, Representation representation) {
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399 System.out.println("genResolveClass " + type + ", " + representation);
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400 XirOperand result = asm.restart(CiKind.Object);
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401 if (type.isResolved()) {
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402 System.out.println("resolved");
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403 asm.mov(result, asm.o(type));
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404 return new XirSnippet(asm.finishTemplate("resolve class"));
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405 }
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406 asm.shouldNotReachHere();
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407 return new XirSnippet(asm.finishTemplate("resolve class"));
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408
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409 }
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410
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411 @Override
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412 public XirSnippet genSafepoint(XirSite site) {
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413 return new XirSnippet(emptyTemplates[CiKind.Void.ordinal()]);
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414 }
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415
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416 @Override
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417 public XirSnippet genExceptionObject(XirSite site) {
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418 return new XirSnippet(exceptionObjectTemplate);
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419 }
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420
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421 }