Mercurial > hg > graal-jvmci-8
annotate graal/Compiler/src/com/sun/c1x/asm/AbstractAssembler.java @ 2507:9ec15d6914ca
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author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 11:43:22 +0200 |
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2507
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1 /* |
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2 * Copyright (c) 2009, 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.sun.c1x.*; |
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28 import com.sun.c1x.debug.*; |
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29 import com.sun.c1x.ir.*; |
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30 import com.sun.c1x.lir.*; |
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31 import com.sun.c1x.util.*; |
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32 import com.sun.cri.ci.*; |
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33 import com.sun.cri.ci.CiTargetMethod.CodeComment; |
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34 import com.sun.cri.ci.CiTargetMethod.Mark; |
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35 import com.sun.cri.ri.*; |
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36 |
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37 /** |
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38 * @author Marcelo Cintra |
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39 * @author Thomas Wuerthinger |
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40 */ |
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41 public abstract class AbstractAssembler { |
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42 |
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43 public final Buffer codeBuffer; |
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44 public final CiTarget target; |
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45 public final CiTargetMethod targetMethod; |
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46 public List<ExceptionInfo> exceptionInfoList; |
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47 |
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48 public AbstractAssembler(CiTarget target) { |
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49 this.target = target; |
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50 this.targetMethod = new CiTargetMethod(); |
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51 this.codeBuffer = new Buffer(target.arch.byteOrder); |
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52 } |
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53 |
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54 public final void bind(Label l) { |
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55 assert !l.isBound() : "can bind label only once"; |
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56 l.bind(codeBuffer.position()); |
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57 l.patchInstructions(this); |
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58 } |
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59 |
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60 public void setFrameSize(int frameSize) { |
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61 targetMethod.setFrameSize(frameSize); |
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62 } |
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63 |
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64 public CiTargetMethod finishTargetMethod(Object name, RiRuntime runtime, int registerRestoreEpilogueOffset, boolean isStub) { |
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65 // Install code, data and frame size |
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66 targetMethod.setTargetCode(codeBuffer.close(false), codeBuffer.position()); |
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67 targetMethod.setRegisterRestoreEpilogueOffset(registerRestoreEpilogueOffset); |
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68 |
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69 // Record exception handlers if they exist |
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70 if (exceptionInfoList != null) { |
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71 for (ExceptionInfo ei : exceptionInfoList) { |
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72 int codeOffset = ei.codeOffset; |
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73 for (ExceptionHandler handler : ei.exceptionHandlers) { |
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74 int entryOffset = handler.entryCodeOffset(); |
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75 RiType caughtType = handler.handler.catchType(); |
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76 targetMethod.recordExceptionHandler(codeOffset, ei.bci, handler.scopeCount(), entryOffset, handler.handlerBCI(), caughtType); |
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77 } |
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78 } |
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79 } |
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80 |
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81 if (C1XOptions.PrintMetrics) { |
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82 C1XMetrics.TargetMethods++; |
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83 C1XMetrics.CodeBytesEmitted += targetMethod.targetCodeSize(); |
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84 C1XMetrics.SafepointsEmitted += targetMethod.safepoints.size(); |
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85 C1XMetrics.DirectCallSitesEmitted += targetMethod.directCalls.size(); |
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86 C1XMetrics.IndirectCallSitesEmitted += targetMethod.indirectCalls.size(); |
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87 C1XMetrics.DataPatches += targetMethod.dataReferences.size(); |
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88 C1XMetrics.ExceptionHandlersEmitted += targetMethod.exceptionHandlers.size(); |
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89 } |
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90 |
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91 if (C1XOptions.PrintAssembly && !TTY.isSuppressed() && !isStub) { |
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92 Util.printSection("Target Method", Util.SECTION_CHARACTER); |
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93 TTY.println("Name: " + name); |
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94 TTY.println("Frame size: " + targetMethod.frameSize()); |
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95 TTY.println("Register size: " + target.arch.registerReferenceMapBitCount); |
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96 |
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97 if (C1XOptions.PrintCodeBytes) { |
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98 Util.printSection("Code", Util.SUB_SECTION_CHARACTER); |
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99 TTY.println("Code: %d bytes", targetMethod.targetCodeSize()); |
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100 Util.printBytes(0L, targetMethod.targetCode(), 0, targetMethod.targetCodeSize(), C1XOptions.PrintAssemblyBytesPerLine); |
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101 } |
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102 |
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103 Util.printSection("Disassembly", Util.SUB_SECTION_CHARACTER); |
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104 String disassembly = runtime.disassemble(targetMethod); |
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105 TTY.println(disassembly); |
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106 boolean noDis = disassembly == null || disassembly.length() == 0; |
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107 |
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108 Util.printSection("Safepoints", Util.SUB_SECTION_CHARACTER); |
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109 for (CiTargetMethod.Safepoint x : targetMethod.safepoints) { |
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110 TTY.println(x.toString()); |
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111 if (noDis && x.debugInfo != null) { |
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112 TTY.println(CiUtil.indent(x.debugInfo.toString(), " ")); |
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113 } |
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114 } |
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115 |
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116 Util.printSection("Direct Call Sites", Util.SUB_SECTION_CHARACTER); |
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117 for (CiTargetMethod.Call x : targetMethod.directCalls) { |
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118 TTY.println(x.toString()); |
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119 if (noDis && x.debugInfo != null) { |
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120 TTY.println(CiUtil.indent(x.debugInfo.toString(), " ")); |
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121 } |
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122 } |
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123 |
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124 Util.printSection("Indirect Call Sites", Util.SUB_SECTION_CHARACTER); |
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125 for (CiTargetMethod.Call x : targetMethod.indirectCalls) { |
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126 TTY.println(x.toString()); |
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127 if (noDis && x.debugInfo != null) { |
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128 TTY.println(CiUtil.indent(x.debugInfo.toString(), " ")); |
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129 } |
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130 } |
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131 |
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132 Util.printSection("Data Patches", Util.SUB_SECTION_CHARACTER); |
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133 for (CiTargetMethod.DataPatch x : targetMethod.dataReferences) { |
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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("Marks", Util.SUB_SECTION_CHARACTER); |
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138 for (CiTargetMethod.Mark x : targetMethod.marks) { |
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139 TTY.println(x.toString()); |
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140 } |
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141 |
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142 Util.printSection("Exception Handlers", Util.SUB_SECTION_CHARACTER); |
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143 for (CiTargetMethod.ExceptionHandler x : targetMethod.exceptionHandlers) { |
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144 TTY.println(x.toString()); |
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145 } |
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146 } |
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147 |
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148 return targetMethod; |
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149 } |
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150 |
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151 public void recordExceptionHandlers(int pcOffset, LIRDebugInfo info) { |
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152 if (info != null) { |
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153 if (info.exceptionHandlers != null) { |
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154 if (exceptionInfoList == null) { |
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155 exceptionInfoList = new ArrayList<ExceptionInfo>(4); |
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156 } |
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157 exceptionInfoList.add(new ExceptionInfo(pcOffset, info.exceptionHandlers, info.state.bci)); |
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158 } |
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159 } |
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160 } |
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161 |
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162 public void recordImplicitException(int pcOffset, LIRDebugInfo info) { |
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163 // record an implicit exception point |
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164 if (info != null) { |
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165 targetMethod.recordSafepoint(pcOffset, info.debugInfo()); |
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166 recordExceptionHandlers(pcOffset, info); |
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167 } |
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168 } |
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169 |
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170 protected void recordDirectCall(int posBefore, int posAfter, Object target, LIRDebugInfo info) { |
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171 CiDebugInfo debugInfo = info != null ? info.debugInfo() : null; |
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172 targetMethod.recordCall(posBefore, target, debugInfo, true); |
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173 } |
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174 |
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175 protected void recordIndirectCall(int posBefore, int posAfter, Object target, LIRDebugInfo info) { |
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176 CiDebugInfo debugInfo = info != null ? info.debugInfo() : null; |
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177 targetMethod.recordCall(posBefore, target, debugInfo, false); |
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178 } |
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179 |
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180 public void recordSafepoint(int pos, LIRDebugInfo info) { |
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181 // safepoints always need debug info |
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182 CiDebugInfo debugInfo = info.debugInfo(); |
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183 targetMethod.recordSafepoint(pos, debugInfo); |
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184 } |
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185 |
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186 public CiAddress recordDataReferenceInCode(CiConstant data) { |
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187 assert data != null; |
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188 |
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189 int pos = codeBuffer.position(); |
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190 |
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191 if (C1XOptions.TraceRelocation) { |
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192 TTY.print("Data reference in code: pos = %d, data = %s", pos, data.toString()); |
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193 } |
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194 |
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195 targetMethod.recordDataReference(pos, data); |
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196 return CiAddress.Placeholder; |
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197 } |
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198 |
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199 public Mark recordMark(Object id, Mark[] references) { |
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200 return targetMethod.recordMark(codeBuffer.position(), id, references); |
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201 } |
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202 |
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203 public abstract void nop(); |
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204 |
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205 public abstract void nullCheck(CiRegister r); |
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206 |
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207 public abstract void align(int codeEntryAlignment); |
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208 |
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209 public abstract void patchJumpTarget(int branch, int target); |
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210 |
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211 public final void emitByte(int x) { |
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212 codeBuffer.emitByte(x); |
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213 } |
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214 |
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215 public final void emitShort(int x) { |
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216 codeBuffer.emitShort(x); |
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217 } |
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218 |
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219 public final void emitInt(int x) { |
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220 codeBuffer.emitInt(x); |
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221 } |
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222 |
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223 public final void emitLong(long x) { |
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224 codeBuffer.emitLong(x); |
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225 } |
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226 |
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227 public void blockComment(String s) { |
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228 targetMethod.addAnnotation(new CodeComment(codeBuffer.position(), s)); |
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229 } |
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230 } |