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annotate jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotProfilingInfo.java @ 24127:6d70d9c43369

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added ResolvedJavaType.isPlatformType (JDK-8177845)
author Doug Simon <doug.simon@oracle.com>
date Sat, 15 Apr 2017 23:54:19 +0200
parents 286dce1eca9b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2012, 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 jdk.vm.ci.hotspot;
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24
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25 import jdk.vm.ci.meta.DeoptimizationReason;
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26 import jdk.vm.ci.meta.JavaMethodProfile;
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27 import jdk.vm.ci.meta.JavaTypeProfile;
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28 import jdk.vm.ci.meta.ProfilingInfo;
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29 import jdk.vm.ci.meta.TriState;
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30
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31 public final class HotSpotProfilingInfo implements ProfilingInfo {
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32
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33 private final HotSpotMethodData methodData;
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34 private final HotSpotResolvedJavaMethod method;
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35
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36 private boolean isMature;
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37 private int position;
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38 private int hintPosition;
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39 private int hintBCI;
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40 private HotSpotMethodDataAccessor dataAccessor;
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41
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42 private boolean includeNormal;
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43 private boolean includeOSR;
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44
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45 public HotSpotProfilingInfo(HotSpotMethodData methodData, HotSpotResolvedJavaMethod method, boolean includeNormal, boolean includeOSR) {
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46 this.methodData = methodData;
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47 this.method = method;
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48 this.includeNormal = includeNormal;
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49 this.includeOSR = includeOSR;
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50 this.isMature = methodData.isProfileMature();
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51 hintPosition = 0;
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52 hintBCI = -1;
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53 }
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54
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55 @Override
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56 public int getCodeSize() {
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57 return method.getCodeSize();
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58 }
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59
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60 public int getDecompileCount() {
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61 return methodData.getDecompileCount();
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62 }
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63
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64 public int getOverflowRecompileCount() {
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65 return methodData.getOverflowRecompileCount();
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66 }
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67
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68 public int getOverflowTrapCount() {
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69 return methodData.getOverflowTrapCount();
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70 }
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71
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72 @Override
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73 public JavaTypeProfile getTypeProfile(int bci) {
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74 if (!isMature) {
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75 return null;
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76 }
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77 findBCI(bci, false);
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78 return dataAccessor.getTypeProfile(methodData, position);
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79 }
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80
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81 @Override
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82 public JavaMethodProfile getMethodProfile(int bci) {
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83 if (!isMature) {
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84 return null;
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85 }
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86 findBCI(bci, false);
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87 return dataAccessor.getMethodProfile(methodData, position);
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88 }
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89
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90 @Override
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91 public double getBranchTakenProbability(int bci) {
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92 if (!isMature) {
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93 return -1;
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94 }
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95 findBCI(bci, false);
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96 return dataAccessor.getBranchTakenProbability(methodData, position);
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97 }
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98
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99 @Override
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100 public double[] getSwitchProbabilities(int bci) {
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101 if (!isMature) {
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102 return null;
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103 }
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104 findBCI(bci, false);
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105 return dataAccessor.getSwitchProbabilities(methodData, position);
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106 }
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107
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108 @Override
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109 public TriState getExceptionSeen(int bci) {
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110 findBCI(bci, true);
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111 return dataAccessor.getExceptionSeen(methodData, position);
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112 }
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113
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114 @Override
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115 public TriState getNullSeen(int bci) {
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116 findBCI(bci, false);
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117 return dataAccessor.getNullSeen(methodData, position);
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118 }
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119
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120 @Override
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121 public int getExecutionCount(int bci) {
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122 if (!isMature) {
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123 return -1;
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124 }
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125 findBCI(bci, false);
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126 return dataAccessor.getExecutionCount(methodData, position);
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127 }
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128
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129 @Override
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130 public int getDeoptimizationCount(DeoptimizationReason reason) {
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131 int count = 0;
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132 if (includeNormal) {
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133 count += methodData.getDeoptimizationCount(reason);
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134 }
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135 if (includeOSR) {
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136 count += methodData.getOSRDeoptimizationCount(reason);
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137 }
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138 return count;
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139 }
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140
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141 private void findBCI(int targetBCI, boolean searchExtraData) {
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142 assert targetBCI >= 0 : "invalid BCI";
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143
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144 if (methodData.hasNormalData()) {
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145 int currentPosition = targetBCI < hintBCI ? 0 : hintPosition;
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146 HotSpotMethodDataAccessor currentAccessor;
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147 while ((currentAccessor = methodData.getNormalData(currentPosition)) != null) {
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148 int currentBCI = currentAccessor.getBCI(methodData, currentPosition);
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149 if (currentBCI == targetBCI) {
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150 normalDataFound(currentAccessor, currentPosition, currentBCI);
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151 return;
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152 } else if (currentBCI > targetBCI) {
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153 break;
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154 }
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155 currentPosition = currentPosition + currentAccessor.getSize(methodData, currentPosition);
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156 }
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157 }
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158
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159 boolean exceptionPossiblyNotRecorded = false;
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160 if (searchExtraData && methodData.hasExtraData()) {
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161 int currentPosition = methodData.getExtraDataBeginOffset();
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162 HotSpotMethodDataAccessor currentAccessor;
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163 while ((currentAccessor = methodData.getExtraData(currentPosition)) != null) {
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164 int currentBCI = currentAccessor.getBCI(methodData, currentPosition);
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165 if (currentBCI == targetBCI) {
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166 extraDataFound(currentAccessor, currentPosition);
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167 return;
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168 }
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169 currentPosition = currentPosition + currentAccessor.getSize(methodData, currentPosition);
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170 }
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171
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172 if (!methodData.isWithin(currentPosition)) {
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173 exceptionPossiblyNotRecorded = true;
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174 }
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175 }
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176
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177 noDataFound(exceptionPossiblyNotRecorded);
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178 }
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179
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180 private void normalDataFound(HotSpotMethodDataAccessor data, int pos, int bci) {
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181 setCurrentData(data, pos);
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182 this.hintPosition = position;
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183 this.hintBCI = bci;
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184 }
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185
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186 private void extraDataFound(HotSpotMethodDataAccessor data, int pos) {
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187 setCurrentData(data, pos);
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188 }
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189
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190 private void noDataFound(boolean exceptionPossiblyNotRecorded) {
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191 HotSpotMethodDataAccessor accessor = HotSpotMethodData.getNoDataAccessor(exceptionPossiblyNotRecorded);
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192 setCurrentData(accessor, -1);
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193 }
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194
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195 private void setCurrentData(HotSpotMethodDataAccessor dataAccessor, int position) {
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196 this.dataAccessor = dataAccessor;
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197 this.position = position;
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198 }
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199
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200 @Override
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201 public boolean isMature() {
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202 return isMature;
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203 }
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204
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205 public void ignoreMature() {
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206 isMature = true;
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207 }
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208
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209 @Override
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210 public String toString() {
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211 return "HotSpotProfilingInfo<" + this.toString(null, "; ") + ">";
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212 }
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213
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214 @Override
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215 public void setMature() {
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216 isMature = true;
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217 }
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218
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219 /**
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220 * {@code MethodData::_jvmci_ir_size} (currently) supports at most one JVMCI compiler IR type
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221 * which will be determined by the first JVMCI compiler that calls
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222 * {@link #setCompilerIRSize(Class, int)}.
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223 */
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224 private static volatile Class<?> supportedCompilerIRType;
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225
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226 @Override
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227 public boolean setCompilerIRSize(Class<?> irType, int size) {
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228 if (supportedCompilerIRType == null) {
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229 synchronized (HotSpotProfilingInfo.class) {
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230 if (supportedCompilerIRType == null) {
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231 supportedCompilerIRType = irType;
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232 }
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233 }
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234 }
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235 if (supportedCompilerIRType != irType) {
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236 return false;
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237 }
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238 methodData.setCompiledIRSize(size);
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239 return true;
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240 }
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diff changeset
241
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diff changeset
242 @Override
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diff changeset
243 public int getCompilerIRSize(Class<?> irType) {
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244 if (irType == supportedCompilerIRType) {
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245 return methodData.getCompiledIRSize();
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246 }
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diff changeset
247 return -1;
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248 }
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249 }