Mercurial > hg > truffle
annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotMethodData.java @ 8610:5407d1dd6450
API to access nullness profiling information for instanceof, checkcast, and aastore
increased maximum interpreter code size to support Java debugging on Windows
| author | Christian Haeubl <haeubl@ssw.jku.at> |
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| date | Wed, 27 Mar 2013 10:36:57 +0100 |
| parents | 630ea5001e33 |
| children | d343737786fe |
| rev | line source |
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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 com.oracle.graal.hotspot.meta; |
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24 |
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25 import static com.oracle.graal.graph.FieldIntrospection.*; |
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26 import static com.oracle.graal.hotspot.HotSpotGraalRuntime.*; |
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27 |
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28 import java.util.*; |
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29 |
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30 import com.oracle.graal.api.meta.*; |
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31 import com.oracle.graal.api.meta.JavaTypeProfile.ProfiledType; |
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32 import com.oracle.graal.api.meta.ProfilingInfo.TriState; |
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33 import com.oracle.graal.hotspot.*; |
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34 import com.oracle.graal.phases.*; |
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35 |
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36 /** |
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37 * Access to a HotSpot MethodData structure (defined in methodData.hpp). |
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38 */ |
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39 public final class HotSpotMethodData extends CompilerObject { |
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40 |
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41 private static final long serialVersionUID = -8873133496591225071L; |
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43 private static final HotSpotVMConfig config = HotSpotGraalRuntime.getInstance().getConfig(); |
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44 private static final HotSpotMethodDataAccessor NO_DATA_NO_EXCEPTION_ACCESSOR = new NoMethodData(TriState.FALSE); |
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45 private static final HotSpotMethodDataAccessor NO_DATA_EXCEPTION_POSSIBLY_NOT_RECORDED_ACCESSOR = new NoMethodData(TriState.UNKNOWN); |
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46 |
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47 // sorted by tag |
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48 private static final HotSpotMethodDataAccessor[] PROFILE_DATA_ACCESSORS = {null, new BitData(), new CounterData(), new JumpData(), new TypeCheckData(), new VirtualCallData(), new RetData(), |
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49 new BranchData(), new MultiBranchData(), new ArgInfoData()}; |
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50 |
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51 /** |
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52 * Reference to the C++ MethodData object. |
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53 */ |
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54 private final long metaspaceMethodData; |
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55 |
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56 private int normalDataSize; |
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57 private int extraDataSize; |
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58 |
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59 HotSpotMethodData(long metaspaceMethodData) { |
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60 this.metaspaceMethodData = metaspaceMethodData; |
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61 HotSpotGraalRuntime.getInstance().getCompilerToVM().initializeMethodData(metaspaceMethodData, this); |
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62 } |
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63 |
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64 public boolean hasNormalData() { |
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65 return normalDataSize > 0; |
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66 } |
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67 |
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68 public boolean hasExtraData() { |
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69 return extraDataSize > 0; |
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70 } |
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71 |
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72 public int getExtraDataBeginOffset() { |
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73 return normalDataSize; |
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74 } |
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75 |
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77 return position >= 0 && position < normalDataSize + extraDataSize; |
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78 } |
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79 |
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80 public int getDeoptimizationCount(DeoptimizationReason reason) { |
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81 int reasonIndex = HotSpotGraalRuntime.getInstance().getRuntime().convertDeoptReason(reason); |
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82 return unsafe.getByte(metaspaceMethodData + config.methodDataOopTrapHistoryOffset + reasonIndex) & 0xFF; |
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83 } |
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84 |
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85 public HotSpotMethodDataAccessor getNormalData(int position) { |
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86 if (position >= normalDataSize) { |
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87 return null; |
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88 } |
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89 |
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90 HotSpotMethodDataAccessor result = getData(position); |
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91 assert result != null : "NO_DATA tag is not allowed"; |
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92 return result; |
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93 } |
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94 |
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95 public HotSpotMethodDataAccessor getExtraData(int position) { |
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96 if (position >= normalDataSize + extraDataSize) { |
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97 return null; |
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98 } |
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99 return getData(position); |
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100 } |
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101 |
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102 public static HotSpotMethodDataAccessor getNoDataAccessor(boolean exceptionPossiblyNotRecorded) { |
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103 if (exceptionPossiblyNotRecorded) { |
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104 return NO_DATA_EXCEPTION_POSSIBLY_NOT_RECORDED_ACCESSOR; |
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105 } else { |
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106 return NO_DATA_NO_EXCEPTION_ACCESSOR; |
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107 } |
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108 } |
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109 |
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110 private HotSpotMethodDataAccessor getData(int position) { |
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111 assert position >= 0 : "out of bounds"; |
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112 int tag = AbstractMethodData.readTag(this, position); |
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113 assert tag >= 0 && tag < PROFILE_DATA_ACCESSORS.length : "illegal tag"; |
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114 return PROFILE_DATA_ACCESSORS[tag]; |
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115 } |
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116 |
| 4444 | 117 private int readUnsignedByte(int position, int offsetInBytes) { |
| 118 long fullOffsetInBytes = computeFullOffset(position, offsetInBytes); | |
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119 return unsafe.getByte(metaspaceMethodData + fullOffsetInBytes) & 0xFF; |
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120 } |
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121 |
| 4444 | 122 private int readUnsignedShort(int position, int offsetInBytes) { |
| 123 long fullOffsetInBytes = computeFullOffset(position, offsetInBytes); | |
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124 return unsafe.getShort(metaspaceMethodData + fullOffsetInBytes) & 0xFFFF; |
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125 } |
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126 |
| 4444 | 127 private long readUnsignedInt(int position, int offsetInBytes) { |
| 128 long fullOffsetInBytes = computeFullOffset(position, offsetInBytes); | |
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129 return unsafe.getInt(metaspaceMethodData + fullOffsetInBytes) & 0xFFFFFFFFL; |
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130 } |
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131 |
| 4444 | 132 private int readUnsignedIntAsSignedInt(int position, int offsetInBytes) { |
| 133 long value = readUnsignedInt(position, offsetInBytes); | |
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134 return truncateLongToInt(value); |
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135 } |
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136 |
| 4444 | 137 private int readInt(int position, int offsetInBytes) { |
| 138 long fullOffsetInBytes = computeFullOffset(position, offsetInBytes); | |
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139 return unsafe.getInt(metaspaceMethodData + fullOffsetInBytes); |
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140 } |
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141 |
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142 private long readWord(int position, int offsetInBytes) { |
| 4444 | 143 long fullOffsetInBytes = computeFullOffset(position, offsetInBytes); |
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144 return unsafeReadWord(metaspaceMethodData + fullOffsetInBytes); |
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145 } |
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146 |
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147 private static int truncateLongToInt(long value) { |
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148 return value > Integer.MAX_VALUE ? Integer.MAX_VALUE : (int) value; |
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149 } |
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150 |
| 4444 | 151 private static int computeFullOffset(int position, int offsetInBytes) { |
| 152 return config.methodDataOopDataOffset + position + offsetInBytes; | |
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153 } |
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154 |
| 4444 | 155 private static int cellIndexToOffset(int cells) { |
| 156 return config.dataLayoutHeaderSize + cellsToBytes(cells); | |
| 157 } | |
| 158 | |
| 159 private static int cellsToBytes(int cells) { | |
| 160 return cells * config.dataLayoutCellSize; | |
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161 } |
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162 |
| 4447 | 163 private abstract static class AbstractMethodData implements HotSpotMethodDataAccessor { |
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164 |
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165 /** |
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166 * Corresponds to DS_RECOMPILE_BIT defined in deoptimization.cpp. |
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167 */ |
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168 private static final int EXCEPTIONS_MASK = 0x80; |
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169 |
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170 private final int tag; |
| 4444 | 171 private final int staticSize; |
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172 |
| 4447 | 173 protected AbstractMethodData(int tag, int staticSize) { |
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174 this.tag = tag; |
| 4444 | 175 this.staticSize = staticSize; |
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176 } |
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177 |
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178 public int getTag() { |
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179 return tag; |
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180 } |
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181 |
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182 public static int readTag(HotSpotMethodData data, int position) { |
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183 return data.readUnsignedByte(position, config.dataLayoutTagOffset); |
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184 } |
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185 |
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186 @Override |
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187 public int getBCI(HotSpotMethodData data, int position) { |
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188 return data.readUnsignedShort(position, config.dataLayoutBCIOffset); |
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189 } |
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190 |
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191 @Override |
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192 public int getSize(HotSpotMethodData data, int position) { |
| 4444 | 193 return staticSize + getDynamicSize(data, position); |
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194 } |
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195 |
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196 @Override |
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197 public TriState getExceptionSeen(HotSpotMethodData data, int position) { |
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198 return TriState.get((getFlags(data, position) & EXCEPTIONS_MASK) != 0); |
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199 } |
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200 |
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201 @Override |
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202 public JavaTypeProfile getTypeProfile(HotSpotMethodData data, int position) { |
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203 return null; |
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204 } |
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205 |
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206 @Override |
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207 public double getBranchTakenProbability(HotSpotMethodData data, int position) { |
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208 return -1; |
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209 } |
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210 |
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211 @Override |
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212 public double[] getSwitchProbabilities(HotSpotMethodData data, int position) { |
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213 return null; |
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214 } |
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215 |
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216 @Override |
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217 public int getExecutionCount(HotSpotMethodData data, int position) { |
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218 return -1; |
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219 } |
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220 |
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221 @Override |
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222 public TriState getNullSeen(HotSpotMethodData data, int position) { |
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223 return TriState.UNKNOWN; |
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224 } |
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225 |
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226 protected int getFlags(HotSpotMethodData data, int position) { |
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227 return data.readUnsignedByte(position, config.dataLayoutFlagsOffset); |
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228 } |
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229 |
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230 protected int getDynamicSize(@SuppressWarnings("unused") HotSpotMethodData data, @SuppressWarnings("unused") int position) { |
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231 return 0; |
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232 } |
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233 } |
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234 |
| 4447 | 235 private static class NoMethodData extends AbstractMethodData { |
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236 |
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237 private static final int NO_DATA_TAG = 0; |
| 4444 | 238 private static final int NO_DATA_SIZE = cellIndexToOffset(0); |
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239 |
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240 private final TriState exceptionSeen; |
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241 |
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242 protected NoMethodData(TriState exceptionSeen) { |
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243 super(NO_DATA_TAG, NO_DATA_SIZE); |
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244 this.exceptionSeen = exceptionSeen; |
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245 } |
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246 |
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247 @Override |
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248 public int getBCI(HotSpotMethodData data, int position) { |
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249 return -1; |
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250 } |
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251 |
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252 @Override |
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253 public TriState getExceptionSeen(HotSpotMethodData data, int position) { |
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254 return exceptionSeen; |
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255 } |
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256 } |
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257 |
| 4447 | 258 private static class BitData extends AbstractMethodData { |
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259 |
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260 private static final int BIT_DATA_TAG = 1; |
| 4444 | 261 private static final int BIT_DATA_SIZE = cellIndexToOffset(0); |
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262 private static final int BIT_DATA_NULL_SEEN_FLAG = 0x01; |
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263 |
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264 private BitData() { |
| 4444 | 265 super(BIT_DATA_TAG, BIT_DATA_SIZE); |
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266 } |
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267 |
| 4444 | 268 protected BitData(int tag, int staticSize) { |
| 269 super(tag, staticSize); | |
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270 } |
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271 |
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272 @Override |
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273 public TriState getNullSeen(HotSpotMethodData data, int position) { |
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274 return TriState.get((getFlags(data, position) & BIT_DATA_NULL_SEEN_FLAG) != 0); |
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275 } |
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276 } |
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277 |
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278 private static class CounterData extends BitData { |
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279 |
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280 private static final int COUNTER_DATA_TAG = 2; |
| 4444 | 281 private static final int COUNTER_DATA_SIZE = cellIndexToOffset(1); |
| 282 private static final int COUNTER_DATA_COUNT_OFFSET = cellIndexToOffset(0); | |
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283 |
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284 public CounterData() { |
| 4444 | 285 super(COUNTER_DATA_TAG, COUNTER_DATA_SIZE); |
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286 } |
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287 |
| 4444 | 288 protected CounterData(int tag, int staticSize) { |
| 289 super(tag, staticSize); | |
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290 } |
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291 |
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292 @Override |
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293 public int getExecutionCount(HotSpotMethodData data, int position) { |
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294 return getCounterValue(data, position); |
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295 } |
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296 |
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297 protected int getCounterValue(HotSpotMethodData data, int position) { |
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298 return data.readUnsignedIntAsSignedInt(position, COUNTER_DATA_COUNT_OFFSET); |
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299 } |
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300 } |
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301 |
| 4447 | 302 private static class JumpData extends AbstractMethodData { |
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303 |
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304 private static final int JUMP_DATA_TAG = 3; |
| 4444 | 305 private static final int JUMP_DATA_SIZE = cellIndexToOffset(2); |
| 306 protected static final int TAKEN_COUNT_OFFSET = cellIndexToOffset(0); | |
| 307 protected static final int TAKEN_DISPLACEMENT_OFFSET = cellIndexToOffset(1); | |
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308 |
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309 public JumpData() { |
| 4444 | 310 super(JUMP_DATA_TAG, JUMP_DATA_SIZE); |
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311 } |
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312 |
| 4444 | 313 protected JumpData(int tag, int staticSize) { |
| 314 super(tag, staticSize); | |
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315 } |
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316 |
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317 @Override |
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318 public double getBranchTakenProbability(HotSpotMethodData data, int position) { |
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319 return getExecutionCount(data, position) != 0 ? 1 : 0; |
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320 } |
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321 |
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322 @Override |
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323 public int getExecutionCount(HotSpotMethodData data, int position) { |
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324 return data.readUnsignedIntAsSignedInt(position, TAKEN_COUNT_OFFSET); |
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325 } |
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326 |
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327 @SuppressWarnings("unused") |
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328 public int getTakenDisplacement(HotSpotMethodData data, int position) { |
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329 return data.readInt(position, TAKEN_DISPLACEMENT_OFFSET); |
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330 } |
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331 } |
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332 |
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333 private abstract static class AbstractTypeData extends CounterData { |
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334 |
| 4444 | 335 private static final int RECEIVER_TYPE_DATA_ROW_SIZE = cellsToBytes(2); |
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336 private static final int RECEIVER_TYPE_DATA_SIZE = cellIndexToOffset(2) + RECEIVER_TYPE_DATA_ROW_SIZE * config.typeProfileWidth; |
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337 protected static final int NONPROFILED_RECEIVER_COUNT_OFFSET = cellIndexToOffset(1); |
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338 private static final int RECEIVER_TYPE_DATA_FIRST_RECEIVER_OFFSET = cellIndexToOffset(2); |
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339 private static final int RECEIVER_TYPE_DATA_FIRST_COUNT_OFFSET = cellIndexToOffset(3); |
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340 |
| 4444 | 341 protected AbstractTypeData(int tag) { |
| 342 super(tag, RECEIVER_TYPE_DATA_SIZE); | |
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343 } |
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344 |
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345 @Override |
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346 public JavaTypeProfile getTypeProfile(HotSpotMethodData data, int position) { |
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347 int typeProfileWidth = config.typeProfileWidth; |
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348 |
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349 ResolvedJavaType[] types = new ResolvedJavaType[typeProfileWidth]; |
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350 long[] counts = new long[typeProfileWidth]; |
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351 long totalCount = 0; |
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352 int entries = 0; |
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353 |
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354 for (int i = 0; i < typeProfileWidth; i++) { |
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355 long receiverKlass = data.readWord(position, getReceiverOffset(i)); |
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356 if (receiverKlass != 0) { |
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357 types[entries] = HotSpotResolvedObjectType.fromMetaspaceKlass(receiverKlass); |
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358 long count = data.readUnsignedInt(position, getCountOffset(i)); |
| 4447 | 359 totalCount += count; |
| 360 counts[entries] = count; | |
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361 |
| 4447 | 362 entries++; |
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363 } |
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364 } |
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365 |
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366 totalCount += getTypesNotRecordedExecutionCount(data, position); |
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367 return createTypeProfile(types, counts, totalCount, entries); |
| 4447 | 368 } |
| 369 | |
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370 protected abstract long getTypesNotRecordedExecutionCount(HotSpotMethodData data, int position); |
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371 |
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372 private static JavaTypeProfile createTypeProfile(ResolvedJavaType[] types, long[] counts, long totalCount, int entries) { |
|
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373 if (entries <= 0 || totalCount < GraalOptions.MatureExecutionsTypeProfile) { |
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374 return null; |
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375 } |
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376 |
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377 ProfiledType[] ptypes = new ProfiledType[entries]; |
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378 double totalProbability = 0.0; |
| 4444 | 379 for (int i = 0; i < entries; i++) { |
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380 double p = counts[i]; |
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381 p = p / totalCount; |
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382 totalProbability += p; |
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383 ptypes[i] = new ProfiledType(types[i], p); |
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384 } |
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385 |
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386 Arrays.sort(ptypes); |
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387 |
|
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388 double notRecordedTypeProbability = entries < config.typeProfileWidth ? 0.0 : Math.min(1.0, Math.max(0.0, 1.0 - totalProbability)); |
|
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389 assert notRecordedTypeProbability == 0 || entries == config.typeProfileWidth; |
|
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390 return new JavaTypeProfile(notRecordedTypeProbability, ptypes); |
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391 } |
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392 |
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393 private static int getReceiverOffset(int row) { |
| 4444 | 394 return RECEIVER_TYPE_DATA_FIRST_RECEIVER_OFFSET + row * RECEIVER_TYPE_DATA_ROW_SIZE; |
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395 } |
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396 |
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397 protected static int getCountOffset(int row) { |
| 4444 | 398 return RECEIVER_TYPE_DATA_FIRST_COUNT_OFFSET + row * RECEIVER_TYPE_DATA_ROW_SIZE; |
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399 } |
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400 } |
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401 |
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402 private static class TypeCheckData extends AbstractTypeData { |
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403 |
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404 private static final int RECEIVER_TYPE_DATA_TAG = 4; |
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405 |
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406 public TypeCheckData() { |
| 4444 | 407 super(RECEIVER_TYPE_DATA_TAG); |
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408 } |
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409 |
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410 @Override |
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411 public int getExecutionCount(HotSpotMethodData data, int position) { |
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412 return -1; |
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413 } |
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414 |
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415 @Override |
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416 protected long getTypesNotRecordedExecutionCount(HotSpotMethodData data, int position) { |
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417 return data.readUnsignedIntAsSignedInt(position, NONPROFILED_RECEIVER_COUNT_OFFSET); |
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418 } |
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419 } |
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420 |
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421 private static class VirtualCallData extends AbstractTypeData { |
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422 |
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423 private static final int VIRTUAL_CALL_DATA_TAG = 5; |
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424 |
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425 public VirtualCallData() { |
| 4444 | 426 super(VIRTUAL_CALL_DATA_TAG); |
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427 } |
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428 |
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429 @Override |
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430 public int getExecutionCount(HotSpotMethodData data, int position) { |
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431 int typeProfileWidth = config.typeProfileWidth; |
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432 |
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433 long total = 0; |
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434 for (int i = 0; i < typeProfileWidth; i++) { |
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435 total += data.readUnsignedInt(position, getCountOffset(i)); |
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436 } |
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437 |
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438 total += getCounterValue(data, position); |
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439 return truncateLongToInt(total); |
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440 } |
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441 |
|
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442 @Override |
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443 protected long getTypesNotRecordedExecutionCount(HotSpotMethodData data, int position) { |
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444 return getCounterValue(data, position); |
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445 } |
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446 } |
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447 |
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448 private static class RetData extends CounterData { |
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449 |
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450 private static final int RET_DATA_TAG = 6; |
| 4444 | 451 private static final int RET_DATA_ROW_SIZE = cellsToBytes(3); |
| 452 private static final int RET_DATA_SIZE = cellIndexToOffset(1) + RET_DATA_ROW_SIZE * config.bciProfileWidth; | |
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453 |
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454 public RetData() { |
| 4444 | 455 super(RET_DATA_TAG, RET_DATA_SIZE); |
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456 } |
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457 } |
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458 |
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459 private static class BranchData extends JumpData { |
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460 |
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461 private static final int BRANCH_DATA_TAG = 7; |
| 4444 | 462 private static final int BRANCH_DATA_SIZE = cellIndexToOffset(3); |
| 463 private static final int NOT_TAKEN_COUNT_OFFSET = cellIndexToOffset(2); | |
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464 |
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465 public BranchData() { |
| 4444 | 466 super(BRANCH_DATA_TAG, BRANCH_DATA_SIZE); |
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467 } |
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468 |
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469 @Override |
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470 public double getBranchTakenProbability(HotSpotMethodData data, int position) { |
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471 long takenCount = data.readUnsignedInt(position, TAKEN_COUNT_OFFSET); |
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472 long notTakenCount = data.readUnsignedInt(position, NOT_TAKEN_COUNT_OFFSET); |
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473 long total = takenCount + notTakenCount; |
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474 |
|
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475 if (total < GraalOptions.MatureExecutionsBranch) { |
|
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476 return -1; |
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477 } else { |
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478 return takenCount / (double) total; |
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479 } |
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480 } |
| 4444 | 481 |
| 482 @Override | |
| 483 public int getExecutionCount(HotSpotMethodData data, int position) { | |
| 484 long count = data.readUnsignedInt(position, TAKEN_COUNT_OFFSET) + data.readUnsignedInt(position, NOT_TAKEN_COUNT_OFFSET); | |
| 485 return truncateLongToInt(count); | |
| 486 } | |
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487 } |
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488 |
| 4447 | 489 private static class ArrayData extends AbstractMethodData { |
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490 |
| 4444 | 491 private static final int ARRAY_DATA_LENGTH_OFFSET = cellIndexToOffset(0); |
| 492 protected static final int ARRAY_DATA_START_OFFSET = cellIndexToOffset(1); | |
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493 |
| 4444 | 494 public ArrayData(int tag, int staticSize) { |
| 495 super(tag, staticSize); | |
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496 } |
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497 |
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498 @Override |
| 4444 | 499 protected int getDynamicSize(HotSpotMethodData data, int position) { |
| 500 return cellsToBytes(getLength(data, position)); | |
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501 } |
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502 |
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503 protected static int getLength(HotSpotMethodData data, int position) { |
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504 return data.readInt(position, ARRAY_DATA_LENGTH_OFFSET); |
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505 } |
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506 } |
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507 |
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508 private static class MultiBranchData extends ArrayData { |
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509 |
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510 private static final int MULTI_BRANCH_DATA_TAG = 8; |
| 4444 | 511 private static final int MULTI_BRANCH_DATA_SIZE = cellIndexToOffset(1); |
| 512 private static final int MULTI_BRANCH_DATA_ROW_SIZE_IN_CELLS = 2; | |
| 513 private static final int MULTI_BRANCH_DATA_ROW_SIZE = cellsToBytes(MULTI_BRANCH_DATA_ROW_SIZE_IN_CELLS); | |
| 514 private static final int MULTI_BRANCH_DATA_FIRST_COUNT_OFFSET = ARRAY_DATA_START_OFFSET + cellsToBytes(0); | |
| 515 private static final int MULTI_BRANCH_DATA_FIRST_DISPLACEMENT_OFFSET = ARRAY_DATA_START_OFFSET + cellsToBytes(1); | |
|
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516 |
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517 public MultiBranchData() { |
| 4444 | 518 super(MULTI_BRANCH_DATA_TAG, MULTI_BRANCH_DATA_SIZE); |
|
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519 } |
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520 |
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521 @Override |
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522 public double[] getSwitchProbabilities(HotSpotMethodData data, int position) { |
| 4444 | 523 int arrayLength = getLength(data, position); |
| 524 assert arrayLength > 0 : "switch must have at least the default case"; | |
| 525 assert arrayLength % MULTI_BRANCH_DATA_ROW_SIZE_IN_CELLS == 0 : "array must have full rows"; | |
|
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526 |
| 4444 | 527 int length = arrayLength / MULTI_BRANCH_DATA_ROW_SIZE_IN_CELLS; |
| 528 long totalCount = 0; | |
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529 double[] result = new double[length]; |
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|
530 |
| 4447 | 531 // default case is first in HotSpot but last for the compiler |
| 532 long count = readCount(data, position, 0); | |
| 4446 | 533 totalCount += count; |
| 534 result[length - 1] = count; | |
| 535 | |
| 536 for (int i = 1; i < length; i++) { | |
| 4447 | 537 count = readCount(data, position, i); |
| 4444 | 538 totalCount += count; |
| 4446 | 539 result[i - 1] = count; |
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540 } |
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541 |
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542 if (totalCount < GraalOptions.MatureExecutionsPerSwitchCase * length) { |
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543 return null; |
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544 } else { |
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545 for (int i = 0; i < length; i++) { |
| 4444 | 546 result[i] = result[i] / totalCount; |
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547 } |
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548 return result; |
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549 } |
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550 } |
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551 |
| 4447 | 552 private static long readCount(HotSpotMethodData data, int position, int i) { |
| 553 int offset; | |
| 554 long count; | |
| 555 offset = getCountOffset(i); | |
| 556 count = data.readUnsignedInt(position, offset); | |
| 557 return count; | |
| 558 } | |
| 559 | |
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560 @Override |
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561 public int getExecutionCount(HotSpotMethodData data, int position) { |
| 4444 | 562 int arrayLength = getLength(data, position); |
| 563 assert arrayLength > 0 : "switch must have at least the default case"; | |
| 564 assert arrayLength % MULTI_BRANCH_DATA_ROW_SIZE_IN_CELLS == 0 : "array must have full rows"; | |
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565 |
| 4444 | 566 int length = arrayLength / MULTI_BRANCH_DATA_ROW_SIZE_IN_CELLS; |
| 567 long totalCount = 0; | |
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568 for (int i = 0; i < length; i++) { |
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569 int offset = getCountOffset(i); |
| 4444 | 570 totalCount += data.readUnsignedInt(position, offset); |
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571 } |
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572 |
| 4444 | 573 return truncateLongToInt(totalCount); |
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574 } |
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575 |
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576 private static int getCountOffset(int index) { |
| 4444 | 577 return MULTI_BRANCH_DATA_FIRST_COUNT_OFFSET + index * MULTI_BRANCH_DATA_ROW_SIZE; |
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578 } |
|
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579 |
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580 @SuppressWarnings("unused") |
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581 private static int getDisplacementOffset(int index) { |
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582 return MULTI_BRANCH_DATA_FIRST_DISPLACEMENT_OFFSET + index * MULTI_BRANCH_DATA_ROW_SIZE; |
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583 } |
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584 } |
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585 |
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586 private static class ArgInfoData extends ArrayData { |
|
7530
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587 |
|
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588 private static final int ARG_INFO_DATA_TAG = 9; |
| 4444 | 589 private static final int ARG_INFO_DATA_SIZE = cellIndexToOffset(1); |
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590 |
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591 public ArgInfoData() { |
| 4444 | 592 super(ARG_INFO_DATA_TAG, ARG_INFO_DATA_SIZE); |
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593 } |
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594 } |
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595 } |