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annotate graal/GraalCompiler/src/com/sun/c1x/asm/TargetMethodAssembler.java @ 2677:0ea5f12e873a

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use com.oracle.max.asm project for assembler
author Christian.Wimmer@Oracle.com
date Fri, 13 May 2011 17:09:20 -0700
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children 7ed72769d51a
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1 /*
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2 * Copyright (c) 2011, 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.sun.c1x.asm;
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24
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25 import java.util.*;
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26
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27 import com.oracle.max.asm.*;
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28 import com.sun.c1x.*;
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29 import com.sun.c1x.debug.*;
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30 import com.sun.c1x.ir.*;
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31 import com.sun.c1x.lir.*;
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32 import com.sun.c1x.util.*;
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33 import com.sun.cri.ci.*;
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34 import com.sun.cri.ri.*;
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35
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36 public class TargetMethodAssembler {
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37 public final AbstractAssembler asm;
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38 public final CiTargetMethod targetMethod;
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39 public List<ExceptionInfo> exceptionInfoList;
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40 protected int lastSafepointPos;
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41
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42 public TargetMethodAssembler(AbstractAssembler asm) {
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43 this.asm = asm;
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44 this.targetMethod = new CiTargetMethod();
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45 }
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46
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47 public void setFrameSize(int frameSize) {
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48 targetMethod.setFrameSize(frameSize);
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49 }
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50
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51 public CiTargetMethod.Mark recordMark(Object id, CiTargetMethod.Mark[] references) {
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52 return targetMethod.recordMark(asm.codeBuffer.position(), id, references);
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53 }
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54
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55 public void blockComment(String s) {
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56 targetMethod.addAnnotation(new CiTargetMethod.CodeComment(asm.codeBuffer.position(), s));
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57 }
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58
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59 public CiTargetMethod finishTargetMethod(Object name, RiRuntime runtime, int registerRestoreEpilogueOffset, boolean isStub) {
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60 // Install code, data and frame size
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61 targetMethod.setTargetCode(asm.codeBuffer.close(false), asm.codeBuffer.position());
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62 targetMethod.setRegisterRestoreEpilogueOffset(registerRestoreEpilogueOffset);
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63
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64 // Record exception handlers if they exist
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65 if (exceptionInfoList != null) {
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66 for (ExceptionInfo ei : exceptionInfoList) {
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67 int codeOffset = ei.codeOffset;
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68 for (ExceptionHandler handler : ei.exceptionHandlers) {
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69 int entryOffset = handler.entryCodeOffset();
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70 RiType caughtType = handler.handler.catchType();
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71 targetMethod.recordExceptionHandler(codeOffset, ei.bci, 0, entryOffset, handler.handlerBCI(), caughtType);
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72 }
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73 }
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74 }
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75
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76 if (C1XOptions.PrintMetrics) {
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77 C1XMetrics.TargetMethods++;
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78 C1XMetrics.CodeBytesEmitted += targetMethod.targetCodeSize();
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79 C1XMetrics.SafepointsEmitted += targetMethod.safepoints.size();
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80 C1XMetrics.DirectCallSitesEmitted += targetMethod.directCalls.size();
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81 C1XMetrics.IndirectCallSitesEmitted += targetMethod.indirectCalls.size();
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82 C1XMetrics.DataPatches += targetMethod.dataReferences.size();
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83 C1XMetrics.ExceptionHandlersEmitted += targetMethod.exceptionHandlers.size();
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84 }
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85
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86 if (C1XOptions.PrintAssembly && !TTY.isSuppressed() && !isStub) {
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87 Util.printSection("Target Method", Util.SECTION_CHARACTER);
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88 TTY.println("Name: " + name);
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89 TTY.println("Frame size: " + targetMethod.frameSize());
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90 TTY.println("Register size: " + asm.target.arch.registerReferenceMapBitCount);
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91
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92 if (C1XOptions.PrintCodeBytes) {
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93 Util.printSection("Code", Util.SUB_SECTION_CHARACTER);
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94 TTY.println("Code: %d bytes", targetMethod.targetCodeSize());
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95 Util.printBytes(0L, targetMethod.targetCode(), 0, targetMethod.targetCodeSize(), C1XOptions.PrintAssemblyBytesPerLine);
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96 }
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97
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98 Util.printSection("Disassembly", Util.SUB_SECTION_CHARACTER);
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99 String disassembly = runtime.disassemble(targetMethod);
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100 TTY.println(disassembly);
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101 boolean noDis = disassembly == null || disassembly.length() == 0;
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102
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103 Util.printSection("Safepoints", Util.SUB_SECTION_CHARACTER);
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104 for (CiTargetMethod.Safepoint x : targetMethod.safepoints) {
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105 TTY.println(x.toString());
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106 if (noDis && x.debugInfo != null) {
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107 TTY.println(CiUtil.indent(x.debugInfo.toString(), " "));
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108 }
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109 }
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110
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111 Util.printSection("Direct Call Sites", Util.SUB_SECTION_CHARACTER);
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112 for (CiTargetMethod.Call x : targetMethod.directCalls) {
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113 TTY.println(x.toString());
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114 if (noDis && x.debugInfo != null) {
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115 TTY.println(CiUtil.indent(x.debugInfo.toString(), " "));
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116 }
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117 }
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118
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119 Util.printSection("Indirect Call Sites", Util.SUB_SECTION_CHARACTER);
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120 for (CiTargetMethod.Call x : targetMethod.indirectCalls) {
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121 TTY.println(x.toString());
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122 if (noDis && x.debugInfo != null) {
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123 TTY.println(CiUtil.indent(x.debugInfo.toString(), " "));
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124 }
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125 }
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126
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127 Util.printSection("Data Patches", Util.SUB_SECTION_CHARACTER);
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128 for (CiTargetMethod.DataPatch x : targetMethod.dataReferences) {
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129 TTY.println(x.toString());
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130 }
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131
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132 Util.printSection("Marks", Util.SUB_SECTION_CHARACTER);
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133 for (CiTargetMethod.Mark x : targetMethod.marks) {
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134 TTY.println(x.toString());
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135 }
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136
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137 Util.printSection("Exception Handlers", Util.SUB_SECTION_CHARACTER);
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138 for (CiTargetMethod.ExceptionHandler x : targetMethod.exceptionHandlers) {
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139 TTY.println(x.toString());
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140 }
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141 }
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142
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143 return targetMethod;
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144 }
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145
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146 public void recordExceptionHandlers(int pcOffset, LIRDebugInfo info) {
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147 if (info != null) {
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148 if (info.exceptionHandlers != null) {
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149 if (exceptionInfoList == null) {
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150 exceptionInfoList = new ArrayList<ExceptionInfo>(4);
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151 }
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152 exceptionInfoList.add(new ExceptionInfo(pcOffset, info.exceptionHandlers, info.state.bci));
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153 }
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154 }
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155 }
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156
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157 public void recordImplicitException(int pcOffset, LIRDebugInfo info) {
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158 // record an implicit exception point
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159 if (info != null) {
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160 assert lastSafepointPos < pcOffset;
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161 lastSafepointPos = pcOffset;
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162 targetMethod.recordSafepoint(pcOffset, info.debugInfo());
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163 recordExceptionHandlers(pcOffset, info);
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164 }
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165 }
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166
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167 public void recordDirectCall(int posBefore, int posAfter, Object target, LIRDebugInfo info) {
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168 CiDebugInfo debugInfo = info != null ? info.debugInfo() : null;
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169 assert lastSafepointPos < posAfter;
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170 lastSafepointPos = posAfter;
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171 targetMethod.recordCall(posBefore, target, debugInfo, true);
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172 }
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173
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174 public void recordIndirectCall(int posBefore, int posAfter, Object target, LIRDebugInfo info) {
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175 CiDebugInfo debugInfo = info != null ? info.debugInfo() : null;
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176 assert lastSafepointPos < posAfter;
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177 lastSafepointPos = posAfter;
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178 targetMethod.recordCall(posBefore, target, debugInfo, false);
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179 }
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180
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181 public void recordSafepoint(int pos, LIRDebugInfo info) {
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182 // safepoints always need debug info
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183 CiDebugInfo debugInfo = info.debugInfo();
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184 assert lastSafepointPos < pos;
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185 lastSafepointPos = pos;
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186 targetMethod.recordSafepoint(pos, debugInfo);
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187 }
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188
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189 public CiAddress recordDataReferenceInCode(CiConstant data) {
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190 assert data != null;
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191
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192 int pos = asm.codeBuffer.position();
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193
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194 if (C1XOptions.TraceRelocation) {
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195 TTY.print("Data reference in code: pos = %d, data = %s", pos, data.toString());
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196 }
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197
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198 targetMethod.recordDataReference(pos, data);
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199 return CiAddress.Placeholder;
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200 }
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201
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202 public int lastSafepointPos() {
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203 return lastSafepointPos;
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204 }
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205 }