Mercurial > hg > truffle
annotate graal/com.oracle.max.cri/src/com/oracle/max/cri/ci/CiTargetMethod.java @ 5016:c142a64141a8
Reorder gate checks to do the important stuff first
author | Christian Wimmer <Christian.Wimmer@Oracle.com> |
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date | Fri, 02 Mar 2012 09:21:10 -0800 |
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children | 12c63380e7ff |
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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.oracle.max.cri.ci; |
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24 |
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25 import java.io.*; |
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26 import java.util.*; |
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27 |
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28 import com.oracle.max.cri.ri.*; |
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29 |
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30 /** |
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31 * Represents the output from compiling a method, including the compiled machine code, associated data and references, |
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32 * relocation information, deoptimization information, etc. It is the essential component of a {@link CiResult}, which also includes |
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33 * {@linkplain CiStatistics compilation statistics} and {@linkplain CiBailout failure information}. |
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34 */ |
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35 public class CiTargetMethod implements Serializable { |
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36 |
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37 /** |
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38 * |
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39 */ |
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40 private static final long serialVersionUID = -1319947729753702434L; |
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41 |
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42 /** |
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43 * Represents a code position with associated additional information. |
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44 */ |
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45 public abstract static class Site implements Serializable { |
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46 /** |
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47 * |
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48 */ |
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49 private static final long serialVersionUID = -8214214947651979102L; |
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50 /** |
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51 * The position (or offset) of this site with respect to the start of the target method. |
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52 */ |
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53 public final int pcOffset; |
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54 |
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55 public Site(int pos) { |
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56 this.pcOffset = pos; |
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57 } |
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58 } |
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59 |
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60 /** |
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61 * Represents a safepoint with associated debug info. |
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62 */ |
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63 public static class Safepoint extends Site implements Comparable<Safepoint> { |
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64 /** |
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65 * |
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66 */ |
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67 private static final long serialVersionUID = 2479806696381720162L; |
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68 public final CiDebugInfo debugInfo; |
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69 |
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70 Safepoint(int pcOffset, CiDebugInfo debugInfo) { |
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71 super(pcOffset); |
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72 this.debugInfo = debugInfo; |
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73 } |
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74 |
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75 @Override |
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76 public String toString() { |
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77 StringBuilder sb = new StringBuilder(); |
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78 sb.append(pcOffset); |
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79 sb.append("[<safepoint>]"); |
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80 appendDebugInfo(sb, debugInfo); |
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81 return sb.toString(); |
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82 } |
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83 |
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84 @Override |
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85 public int compareTo(Safepoint o) { |
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86 if (pcOffset < o.pcOffset) { |
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87 return -1; |
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88 } else if (pcOffset > o.pcOffset) { |
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89 return 1; |
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90 } |
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91 return 0; |
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92 } |
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93 } |
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94 |
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95 /** |
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96 * Represents a call in the code. |
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97 */ |
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98 public static final class Call extends Safepoint { |
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99 /** |
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100 * |
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101 */ |
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102 private static final long serialVersionUID = 1440741241631046954L; |
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103 |
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104 /** |
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105 * The target of the call. |
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106 */ |
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107 public final Object target; |
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108 |
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109 /** |
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110 * The size of the call instruction. |
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111 */ |
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112 public final int size; |
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113 |
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114 /** |
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115 * Specifies if this call is direct or indirect. A direct call has an immediate operand encoding |
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116 * the absolute or relative (to the call itself) address of the target. An indirect call has a |
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117 * register or memory operand specifying the target address of the call. |
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118 */ |
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119 public final boolean direct; |
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120 |
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121 Call(Object target, int pcOffset, int size, boolean direct, CiDebugInfo debugInfo) { |
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122 super(pcOffset, debugInfo); |
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123 this.size = size; |
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124 this.target = target; |
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125 this.direct = direct; |
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126 } |
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127 |
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128 @Override |
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129 public String toString() { |
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130 StringBuilder sb = new StringBuilder(); |
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131 sb.append(pcOffset); |
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132 sb.append('['); |
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133 sb.append(target); |
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134 sb.append(']'); |
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135 |
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136 if (debugInfo != null) { |
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137 appendDebugInfo(sb, debugInfo); |
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138 } |
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139 |
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140 return sb.toString(); |
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141 } |
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142 } |
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143 |
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144 /** |
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145 * Represents a reference to data from the code. The associated data can be any constant. |
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146 */ |
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147 public static final class DataPatch extends Site { |
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148 /** |
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149 * |
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150 */ |
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151 private static final long serialVersionUID = 5771730331604867476L; |
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152 public final CiConstant constant; |
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153 public final int alignment; |
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154 |
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155 DataPatch(int pcOffset, CiConstant data, int alignment) { |
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156 super(pcOffset); |
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157 this.constant = data; |
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158 this.alignment = alignment; |
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159 } |
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160 |
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161 @Override |
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162 public String toString() { |
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163 return String.format("%d[<data patch referring to data %s>]", pcOffset, constant); |
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164 } |
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165 } |
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166 |
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167 /** |
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168 * Provides extra information about instructions or data at specific positions in {@link CiTargetMethod#targetCode()}. |
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169 * This is optional information that can be used to enhance a disassembly of the code. |
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170 */ |
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171 public abstract static class CodeAnnotation implements Serializable { |
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172 /** |
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173 * |
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174 */ |
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175 private static final long serialVersionUID = -7903959680749520748L; |
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176 public final int position; |
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177 |
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178 public CodeAnnotation(int position) { |
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179 this.position = position; |
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180 } |
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181 } |
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182 |
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183 /** |
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184 * A string comment about one or more instructions at a specific position in the code. |
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185 */ |
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186 public static final class CodeComment extends CodeAnnotation { |
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187 /** |
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188 * |
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189 */ |
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190 private static final long serialVersionUID = 6802287188701961401L; |
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191 public final String value; |
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192 public CodeComment(int position, String comment) { |
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193 super(position); |
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194 this.value = comment; |
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195 } |
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196 |
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197 @Override |
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198 public String toString() { |
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199 return getClass().getSimpleName() + "@" + position + ": " + value; |
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200 } |
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201 } |
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202 |
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203 /** |
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204 * Labels some inline data in the code. |
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205 */ |
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206 public static final class InlineData extends CodeAnnotation { |
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207 /** |
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208 * |
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209 */ |
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210 private static final long serialVersionUID = 305997507263827108L; |
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211 public final int size; |
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212 public InlineData(int position, int size) { |
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213 super(position); |
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214 this.size = size; |
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215 } |
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216 |
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217 @Override |
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218 public String toString() { |
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219 return getClass().getSimpleName() + "@" + position + ": size=" + size; |
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220 } |
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221 } |
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222 |
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223 /** |
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224 * Describes a table of signed offsets embedded in the code. The offsets are relative to the starting |
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225 * address of the table. This type of table maybe generated when translating a multi-way branch |
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226 * based on a key value from a dense value set (e.g. the {@code tableswitch} JVM instruction). |
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227 * |
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228 * The table is indexed by the contiguous range of integers from {@link #low} to {@link #high} inclusive. |
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229 */ |
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230 public static final class JumpTable extends CodeAnnotation { |
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231 /** |
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232 * |
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233 */ |
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234 private static final long serialVersionUID = 2222194398353801831L; |
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235 |
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236 /** |
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237 * The low value in the key range (inclusive). |
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238 */ |
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239 public final int low; |
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240 |
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241 /** |
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242 * The high value in the key range (inclusive). |
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243 */ |
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244 public final int high; |
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245 |
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246 /** |
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247 * The size (in bytes) of each table entry. |
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248 */ |
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249 public final int entrySize; |
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250 |
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251 public JumpTable(int position, int low, int high, int entrySize) { |
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252 super(position); |
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253 this.low = low; |
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254 this.high = high; |
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255 this.entrySize = entrySize; |
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256 } |
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257 |
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258 @Override |
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259 public String toString() { |
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260 return getClass().getSimpleName() + "@" + position + ": [" + low + " .. " + high + "]"; |
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261 } |
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262 } |
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263 |
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264 /** |
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265 * Describes a table of key and offset pairs. The offset in each table entry is relative to the address of |
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266 * the table. This type of table maybe generated when translating a multi-way branch |
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267 * based on a key value from a sparse value set (e.g. the {@code lookupswitch} JVM instruction). |
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268 */ |
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269 public static final class LookupTable extends CodeAnnotation { |
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270 /** |
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271 * |
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272 */ |
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273 private static final long serialVersionUID = 8367952567559116160L; |
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274 |
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275 /** |
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276 * The number of entries in the table. |
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277 */ |
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278 public final int npairs; |
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279 |
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280 /** |
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281 * The size (in bytes) of entry's key. |
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282 */ |
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283 public final int keySize; |
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284 |
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285 /** |
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286 * The size (in bytes) of entry's offset value. |
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287 */ |
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288 public final int offsetSize; |
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289 |
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290 public LookupTable(int position, int npairs, int keySize, int offsetSize) { |
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291 super(position); |
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292 this.npairs = npairs; |
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293 this.keySize = keySize; |
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294 this.offsetSize = offsetSize; |
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295 } |
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296 |
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297 @Override |
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298 public String toString() { |
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299 return getClass().getSimpleName() + "@" + position + ": [npairs=" + npairs + ", keySize=" + keySize + ", offsetSize=" + offsetSize + "]"; |
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300 } |
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301 } |
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302 |
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303 /** |
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304 * Represents exception handler information for a specific code position. It includes the catch code position as |
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305 * well as the caught exception type. |
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306 */ |
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307 public static final class ExceptionHandler extends Site { |
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308 /** |
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309 * |
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310 */ |
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311 private static final long serialVersionUID = 4897339464722665281L; |
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312 public final int handlerPos; |
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313 |
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314 ExceptionHandler(int pcOffset, int handlerPos) { |
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315 super(pcOffset); |
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316 this.handlerPos = handlerPos; |
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317 } |
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318 |
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319 @Override |
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320 public String toString() { |
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321 return String.format("%d[<exception edge to %d>]", pcOffset, handlerPos); |
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322 } |
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323 } |
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324 |
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325 public static final class Mark extends Site { |
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326 /** |
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327 * |
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328 */ |
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329 private static final long serialVersionUID = 3612943150662354844L; |
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330 public final Object id; |
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331 public final Mark[] references; |
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332 |
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333 Mark(int pcOffset, Object id, Mark[] references) { |
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334 super(pcOffset); |
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335 this.id = id; |
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336 this.references = references; |
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337 } |
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338 |
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339 @Override |
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340 public String toString() { |
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341 if (id == null) { |
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342 return String.format("%d[<mark with %d references>]", pcOffset, references.length); |
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343 } else if (id instanceof Integer) { |
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344 return String.format("%d[<mark with %d references and id %s>]", pcOffset, references.length, Integer.toHexString((Integer) id)); |
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345 } else { |
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346 return String.format("%d[<mark with %d references and id %s>]", pcOffset, references.length, id.toString()); |
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347 } |
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348 } |
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349 } |
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350 |
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351 /** |
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352 * List of safepoints, sorted by {@link Site#pcOffset}. |
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353 */ |
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354 public final List<Safepoint> safepoints = new ArrayList<>(); |
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355 |
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356 /** |
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357 * List of data references. |
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358 */ |
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359 public final List<DataPatch> dataReferences = new ArrayList<>(); |
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360 |
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361 /** |
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362 * List of exception handlers. |
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363 */ |
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364 public final List<ExceptionHandler> exceptionHandlers = new ArrayList<>(); |
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365 |
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366 /** |
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367 * List of marks. |
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368 */ |
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369 public final List<Mark> marks = new ArrayList<>(); |
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370 |
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371 private int frameSize = -1; |
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372 private int customStackAreaOffset = -1; |
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373 private int registerRestoreEpilogueOffset = -1; |
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374 /** |
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375 * The buffer containing the emitted machine code. |
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376 */ |
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377 private byte[] targetCode; |
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378 |
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379 /** |
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380 * The leading number of bytes in {@link #targetCode} containing the emitted machine code. |
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381 */ |
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382 private int targetCodeSize; |
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383 |
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384 private ArrayList<CodeAnnotation> annotations; |
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385 |
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386 private CiAssumptions assumptions; |
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387 |
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388 /** |
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389 * Constructs a new target method. |
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parents:
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390 */ |
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parents:
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391 public CiTargetMethod() { |
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392 } |
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393 |
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394 public void setAssumptions(CiAssumptions assumptions) { |
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395 this.assumptions = assumptions; |
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396 } |
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397 |
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398 public CiAssumptions assumptions() { |
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399 return assumptions; |
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400 } |
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401 |
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402 /** |
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403 * Sets the frame size in bytes. Does not include the return address pushed onto the |
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parents:
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404 * stack, if any. |
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parents:
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405 * |
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parents:
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406 * @param size the size of the frame in bytes |
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407 */ |
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408 public void setFrameSize(int size) { |
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409 frameSize = size; |
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410 } |
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411 |
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parents:
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412 /** |
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parents:
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413 * Sets the machine that has been generated by the compiler. |
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414 * |
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parents:
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415 * @param code the machine code generated |
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416 * @param size the size of the machine code |
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parents:
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417 */ |
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418 public void setTargetCode(byte[] code, int size) { |
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419 targetCode = code; |
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420 targetCodeSize = size; |
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parents:
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421 } |
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parents:
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422 |
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parents:
diff
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423 /** |
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parents:
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424 * Records a reference to the data section in the code section (e.g. to load an integer or floating point constant). |
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425 * |
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426 * @param codePos the position in the code where the data reference occurs |
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parents:
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427 * @param data the data that is referenced |
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428 * @param alignment the alignment requirement of the data or 0 if there is no alignment requirement |
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parents:
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429 */ |
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430 public void recordDataReference(int codePos, CiConstant data, int alignment) { |
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431 assert codePos >= 0 && data != null; |
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432 dataReferences.add(new DataPatch(codePos, data, alignment)); |
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433 } |
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434 |
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435 /** |
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436 * Records a call in the code array. |
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437 * |
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438 * @param codePos the position of the call in the code array |
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parents:
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439 * @param size the size of the call instruction |
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440 * @param target the {@link RiRuntime#asCallTarget(Object) target} being called |
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441 * @param debugInfo the debug info for the call |
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442 * @param direct specifies if this is a {@linkplain Call#direct direct} call |
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443 */ |
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444 public void recordCall(int codePos, int size, Object target, CiDebugInfo debugInfo, boolean direct) { |
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445 final Call call = new Call(target, codePos, size, direct, debugInfo); |
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446 addSafepoint(call); |
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|
447 } |
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|
448 |
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|
449 /** |
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450 * Records an exception handler for this method. |
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451 * |
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452 * @param codePos the position in the code that is covered by the handler |
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453 * @param handlerPos the position of the handler |
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454 * @param throwableType the type of exceptions handled by the handler |
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parents:
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455 */ |
4693
07bcee8b70a4
Simplify exception debug information and exception handler table creation based on Graal's simplified model of exception handler information (i.e. the dispatch is done in compiled code).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
4199
diff
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|
456 public void recordExceptionHandler(int codePos, int handlerPos) { |
07bcee8b70a4
Simplify exception debug information and exception handler table creation based on Graal's simplified model of exception handler information (i.e. the dispatch is done in compiled code).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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4199
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457 exceptionHandlers.add(new ExceptionHandler(codePos, handlerPos)); |
3733
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|
458 } |
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diff
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|
459 |
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parents:
diff
changeset
|
460 /** |
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|
461 * Records a safepoint in the code array. |
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parents:
diff
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|
462 * |
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parents:
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463 * @param codePos the position of the safepoint in the code array |
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parents:
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464 * @param debugInfo the debug info for the safepoint |
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parents:
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|
465 */ |
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parents:
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|
466 public void recordSafepoint(int codePos, CiDebugInfo debugInfo) { |
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467 addSafepoint(new Safepoint(codePos, debugInfo)); |
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parents:
diff
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|
468 } |
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parents:
diff
changeset
|
469 |
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diff
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|
470 private void addSafepoint(Safepoint safepoint) { |
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parents:
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471 // The safepoints list must always be sorted |
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parents:
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472 if (!safepoints.isEmpty() && safepoints.get(safepoints.size() - 1).pcOffset >= safepoint.pcOffset) { |
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|
473 // This re-sorting should be very rare |
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|
474 Collections.sort(safepoints); |
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parents:
diff
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|
475 } |
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parents:
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|
476 safepoints.add(safepoint); |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
477 } |
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parents:
diff
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|
478 |
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parents:
diff
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|
479 /** |
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parents:
diff
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|
480 * Records an instruction mark within this method. |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
481 * |
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parents:
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|
482 * @param codePos the position in the code that is covered by the handler |
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parents:
diff
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|
483 * @param id the identifier for this mark |
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parents:
diff
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|
484 * @param references an array of other marks that this mark references |
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parents:
diff
changeset
|
485 */ |
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parents:
diff
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|
486 public Mark recordMark(int codePos, Object id, Mark[] references) { |
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parents:
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|
487 Mark mark = new Mark(codePos, id, references); |
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parents:
diff
changeset
|
488 marks.add(mark); |
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parents:
diff
changeset
|
489 return mark; |
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parents:
diff
changeset
|
490 } |
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parents:
diff
changeset
|
491 |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
492 /** |
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parents:
diff
changeset
|
493 * Allows a method to specify the offset of the epilogue that restores the callee saved registers. Must be called |
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parents:
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|
494 * iff the method is a callee saved method and stores callee registers on the stack. |
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parents:
diff
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|
495 * |
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parents:
diff
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|
496 * @param registerRestoreEpilogueOffset the offset in the machine code where the epilogue begins |
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parents:
diff
changeset
|
497 */ |
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parents:
diff
changeset
|
498 public void setRegisterRestoreEpilogueOffset(int registerRestoreEpilogueOffset) { |
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parents:
diff
changeset
|
499 assert this.registerRestoreEpilogueOffset == -1; |
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parents:
diff
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|
500 this.registerRestoreEpilogueOffset = registerRestoreEpilogueOffset; |
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parents:
diff
changeset
|
501 } |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
502 |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
503 /** |
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parents:
diff
changeset
|
504 * The frame size of the method in bytes. |
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505 * |
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506 * @return the frame size |
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507 */ |
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508 public int frameSize() { |
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509 assert frameSize != -1 : "frame size not yet initialized!"; |
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510 return frameSize; |
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511 } |
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512 |
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513 /** |
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514 * @return the code offset of the start of the epilogue that restores all callee saved registers, or -1 if this is |
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515 * not a callee saved method |
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516 */ |
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517 public int registerRestoreEpilogueOffset() { |
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518 return registerRestoreEpilogueOffset; |
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519 } |
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520 |
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521 /** |
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522 * Offset in bytes for the custom stack area (relative to sp). |
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523 * @return the offset in bytes |
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524 */ |
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525 public int customStackAreaOffset() { |
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526 return customStackAreaOffset; |
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527 } |
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528 |
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529 /** |
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530 * @see #customStackAreaOffset() |
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531 * @param offset |
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532 */ |
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533 public void setCustomStackAreaOffset(int offset) { |
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534 customStackAreaOffset = offset; |
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535 } |
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536 |
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537 /** |
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538 * @return the machine code generated for this method |
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539 */ |
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540 public byte[] targetCode() { |
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541 return targetCode; |
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542 } |
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543 |
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544 /** |
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545 * @return the size of the machine code generated for this method |
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546 */ |
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547 public int targetCodeSize() { |
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548 return targetCodeSize; |
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549 } |
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550 |
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551 /** |
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|
552 * @return the code annotations or {@code null} if there are none |
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553 */ |
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554 public List<CodeAnnotation> annotations() { |
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555 return annotations; |
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parents:
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|
556 } |
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557 |
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558 public void addAnnotation(CodeAnnotation annotation) { |
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559 assert annotation != null; |
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560 if (annotations == null) { |
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561 annotations = new ArrayList<>(); |
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562 } |
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563 annotations.add(annotation); |
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|
564 } |
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|
565 |
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566 private static void appendDebugInfo(StringBuilder sb, CiDebugInfo info) { |
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|
567 if (info != null) { |
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parents:
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|
568 appendRefMap(sb, "stackMap", info.frameRefMap); |
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parents:
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569 appendRefMap(sb, "registerMap", info.registerRefMap); |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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570 CiCodePos codePos = info.codePos; |
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571 if (codePos != null) { |
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572 CiUtil.appendLocation(sb.append(" "), codePos.method, codePos.bci); |
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parents:
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|
573 if (info.hasFrame()) { |
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parents:
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|
574 sb.append(" #locals=").append(info.frame().numLocals).append(" #expr=").append(info.frame().numStack); |
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575 if (info.frame().numLocks > 0) { |
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|
576 sb.append(" #locks=").append(info.frame().numLocks); |
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parents:
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|
577 } |
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parents:
diff
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|
578 } |
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|
579 } |
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parents:
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|
580 } |
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parents:
diff
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|
581 } |
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parents:
diff
changeset
|
582 |
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parents:
diff
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|
583 private static void appendRefMap(StringBuilder sb, String name, CiBitMap map) { |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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|
584 if (map != null) { |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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|
585 sb.append(' ').append(name).append('[').append(map.toBinaryString()).append(']'); |
3733
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parents:
diff
changeset
|
586 } |
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parents:
diff
changeset
|
587 } |
e233f5660da4
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parents:
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changeset
|
588 } |