Mercurial > hg > truffle
annotate graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotMethodData.java @ 21782:9c454c650b29
Work around CTW Graal compiler initlization order issue
author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
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date | Mon, 08 Jun 2015 15:57:52 +0200 |
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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.jvmci.hotspot; |
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24 |
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25 import static com.oracle.jvmci.common.UnsafeAccess.*; |
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26 import static com.oracle.jvmci.hotspot.HotSpotJVMCIRuntime.*; |
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27 import static java.lang.String.*; |
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28 |
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29 import java.util.*; |
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30 |
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31 import sun.misc.*; |
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32 |
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33 import com.oracle.jvmci.hotspot.HotSpotMethodDataAccessor.Tag; |
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34 import com.oracle.jvmci.meta.*; |
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35 import com.oracle.jvmci.meta.JavaMethodProfile.ProfiledMethod; |
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36 import com.oracle.jvmci.meta.JavaTypeProfile.ProfiledType; |
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37 |
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38 /** |
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39 * Access to a HotSpot MethodData structure (defined in methodData.hpp). |
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40 */ |
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41 public final class HotSpotMethodData { |
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43 private static final HotSpotVMConfig config = runtime().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 |
13182 | 48 // @formatter:off |
49 private static final HotSpotMethodDataAccessor[] PROFILE_DATA_ACCESSORS = { | |
50 null, | |
51 new BitData(), | |
52 new CounterData(), | |
53 new JumpData(), | |
54 new TypeCheckData(), | |
55 new VirtualCallData(), | |
56 new RetData(), | |
57 new BranchData(), | |
58 new MultiBranchData(), | |
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59 new ArgInfoData(), |
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60 null, // call_type_data_tag |
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61 null, // virtual_call_type_data_tag |
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62 null, // parameters_type_data_tag |
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63 null, // speculative_trap_data_tag |
13182 | 64 }; |
65 // @formatter:on | |
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66 |
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67 /** |
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68 * Reference to the C++ MethodData object. |
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69 */ |
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70 private final long metaspaceMethodData; |
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71 |
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72 public HotSpotMethodData(long metaspaceMethodData) { |
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73 this.metaspaceMethodData = metaspaceMethodData; |
13241 | 74 } |
75 | |
76 /** | |
77 * @return value of the MethodData::_data_size field | |
78 */ | |
79 private int normalDataSize() { | |
80 return unsafe.getInt(metaspaceMethodData + config.methodDataDataSize); | |
81 } | |
82 | |
83 /** | |
84 * Returns the size of the extra data records. This method does the same calculation as | |
85 * MethodData::extra_data_size(). | |
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86 * |
13241 | 87 * @return size of extra data records |
88 */ | |
89 private int extraDataSize() { | |
90 final int extraDataBase = config.methodDataOopDataOffset + normalDataSize(); | |
91 final int extraDataLimit = unsafe.getInt(metaspaceMethodData + config.methodDataSize); | |
92 return extraDataLimit - extraDataBase; | |
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93 } |
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94 |
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95 public boolean hasNormalData() { |
13241 | 96 return normalDataSize() > 0; |
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97 } |
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98 |
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99 public boolean hasExtraData() { |
13241 | 100 return extraDataSize() > 0; |
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101 } |
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102 |
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103 public int getExtraDataBeginOffset() { |
13241 | 104 return normalDataSize(); |
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105 } |
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106 |
4444 | 107 public boolean isWithin(int position) { |
13241 | 108 return position >= 0 && position < normalDataSize() + extraDataSize(); |
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109 } |
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110 |
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111 public int getDeoptimizationCount(DeoptimizationReason reason) { |
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112 HotSpotMetaAccessProvider metaAccess = (HotSpotMetaAccessProvider) runtime().getHostJVMCIBackend().getMetaAccess(); |
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113 int reasonIndex = metaAccess.convertDeoptReason(reason); |
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114 return unsafe.getByte(metaspaceMethodData + config.methodDataOopTrapHistoryOffset + reasonIndex) & 0xFF; |
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115 } |
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116 |
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117 public int getOSRDeoptimizationCount(DeoptimizationReason reason) { |
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118 HotSpotMetaAccessProvider metaAccess = (HotSpotMetaAccessProvider) runtime().getHostJVMCIBackend().getMetaAccess(); |
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119 int reasonIndex = metaAccess.convertDeoptReason(reason); |
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120 return unsafe.getByte(metaspaceMethodData + config.methodDataOopTrapHistoryOffset + config.deoptReasonOSROffset + reasonIndex) & 0xFF; |
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121 } |
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122 |
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123 public HotSpotMethodDataAccessor getNormalData(int position) { |
13241 | 124 if (position >= normalDataSize()) { |
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125 return null; |
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126 } |
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127 |
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128 HotSpotMethodDataAccessor result = getData(position); |
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129 assert result != null : "NO_DATA tag is not allowed"; |
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130 return result; |
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131 } |
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132 |
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133 public HotSpotMethodDataAccessor getExtraData(int position) { |
13241 | 134 if (position >= normalDataSize() + extraDataSize()) { |
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135 return null; |
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136 } |
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137 HotSpotMethodDataAccessor data = getData(position); |
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138 if (data != null) { |
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139 return data; |
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140 } |
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141 return data; |
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142 } |
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143 |
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144 public static HotSpotMethodDataAccessor getNoDataAccessor(boolean exceptionPossiblyNotRecorded) { |
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145 if (exceptionPossiblyNotRecorded) { |
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146 return NO_DATA_EXCEPTION_POSSIBLY_NOT_RECORDED_ACCESSOR; |
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147 } else { |
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148 return NO_DATA_NO_EXCEPTION_ACCESSOR; |
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149 } |
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150 } |
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151 |
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152 private HotSpotMethodDataAccessor getData(int position) { |
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153 assert position >= 0 : "out of bounds"; |
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154 final Tag tag = AbstractMethodData.readTag(this, position); |
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155 HotSpotMethodDataAccessor accessor = PROFILE_DATA_ACCESSORS[tag.getValue()]; |
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156 assert accessor == null || accessor.getTag() == tag : "wrong data accessor " + accessor + " for tag " + tag; |
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157 return accessor; |
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158 } |
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159 |
4444 | 160 private int readUnsignedByte(int position, int offsetInBytes) { |
161 long fullOffsetInBytes = computeFullOffset(position, offsetInBytes); | |
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162 return unsafe.getByte(metaspaceMethodData + fullOffsetInBytes) & 0xFF; |
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163 } |
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164 |
4444 | 165 private int readUnsignedShort(int position, int offsetInBytes) { |
166 long fullOffsetInBytes = computeFullOffset(position, offsetInBytes); | |
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167 return unsafe.getShort(metaspaceMethodData + fullOffsetInBytes) & 0xFFFF; |
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168 } |
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169 |
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170 /** |
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171 * Since the values are stored in cells (platform words) this method uses |
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172 * {@link Unsafe#getAddress} to read the right value on both little and big endian machines. |
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173 */ |
4444 | 174 private long readUnsignedInt(int position, int offsetInBytes) { |
175 long fullOffsetInBytes = computeFullOffset(position, offsetInBytes); | |
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176 return unsafe.getAddress(metaspaceMethodData + fullOffsetInBytes) & 0xFFFFFFFFL; |
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177 } |
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178 |
4444 | 179 private int readUnsignedIntAsSignedInt(int position, int offsetInBytes) { |
180 long value = readUnsignedInt(position, offsetInBytes); | |
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181 return truncateLongToInt(value); |
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182 } |
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183 |
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184 /** |
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185 * Since the values are stored in cells (platform words) this method uses |
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186 * {@link Unsafe#getAddress} to read the right value on both little and big endian machines. |
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187 */ |
4444 | 188 private int readInt(int position, int offsetInBytes) { |
189 long fullOffsetInBytes = computeFullOffset(position, offsetInBytes); | |
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190 return (int) unsafe.getAddress(metaspaceMethodData + fullOffsetInBytes); |
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191 } |
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192 |
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193 private long readWord(int position, int offsetInBytes) { |
4444 | 194 long fullOffsetInBytes = computeFullOffset(position, offsetInBytes); |
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195 return unsafe.getAddress(metaspaceMethodData + fullOffsetInBytes); |
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196 } |
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197 |
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198 private static int truncateLongToInt(long value) { |
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199 return value > Integer.MAX_VALUE ? Integer.MAX_VALUE : (int) value; |
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200 } |
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201 |
4444 | 202 private static int computeFullOffset(int position, int offsetInBytes) { |
203 return config.methodDataOopDataOffset + position + offsetInBytes; | |
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204 } |
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205 |
4444 | 206 private static int cellIndexToOffset(int cells) { |
207 return config.dataLayoutHeaderSize + cellsToBytes(cells); | |
208 } | |
209 | |
210 private static int cellsToBytes(int cells) { | |
211 return cells * config.dataLayoutCellSize; | |
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212 } |
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213 |
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214 /** |
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215 * Returns whether profiling ran long enough that the profile information is mature. Other |
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216 * informational data will still be valid even if the profile isn't mature. |
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217 */ |
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218 public boolean isProfileMature() { |
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219 return runtime().getCompilerToVM().isMature(metaspaceMethodData); |
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220 } |
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221 |
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222 @Override |
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223 public String toString() { |
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224 StringBuilder sb = new StringBuilder(); |
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225 String nl = String.format("%n"); |
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226 String nlIndent = String.format("%n%38s", ""); |
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227 if (hasNormalData()) { |
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228 int pos = 0; |
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229 HotSpotMethodDataAccessor data; |
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230 while ((data = getNormalData(pos)) != null) { |
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231 if (pos != 0) { |
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232 sb.append(nl); |
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233 } |
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234 int bci = data.getBCI(this, pos); |
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235 sb.append(String.format("%-6d bci: %-6d%-20s", pos, bci, data.getClass().getSimpleName())); |
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236 sb.append(data.appendTo(new StringBuilder(), this, pos).toString().replace(nl, nlIndent)); |
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237 pos = pos + data.getSize(this, pos); |
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238 } |
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239 } |
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240 |
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241 if (hasExtraData()) { |
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242 int pos = getExtraDataBeginOffset(); |
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243 HotSpotMethodDataAccessor data; |
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244 while ((data = getExtraData(pos)) != null) { |
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245 if (pos == getExtraDataBeginOffset()) { |
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246 sb.append(nl).append("--- Extra data:"); |
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247 } |
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248 int bci = data.getBCI(this, pos); |
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249 sb.append(String.format("%n%-6d bci: %-6d%-20s", pos, bci, data.getClass().getSimpleName())); |
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250 sb.append(data.appendTo(new StringBuilder(), this, pos).toString().replace(nl, nlIndent)); |
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251 pos = pos + data.getSize(this, pos); |
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252 } |
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253 |
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254 } |
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255 return sb.toString(); |
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256 } |
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257 |
4447 | 258 private abstract static class AbstractMethodData implements HotSpotMethodDataAccessor { |
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259 |
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260 /** |
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261 * Corresponds to {@code exception_seen_flag}. |
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262 */ |
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263 private static final int EXCEPTIONS_MASK = 0x2; |
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264 |
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265 private final Tag tag; |
4444 | 266 private final int staticSize; |
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267 |
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268 protected AbstractMethodData(Tag tag, int staticSize) { |
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269 this.tag = tag; |
4444 | 270 this.staticSize = staticSize; |
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271 } |
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272 |
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273 public Tag getTag() { |
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274 return tag; |
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275 } |
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276 |
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277 public static Tag readTag(HotSpotMethodData data, int position) { |
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278 final int tag = data.readUnsignedByte(position, config.dataLayoutTagOffset); |
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279 return Tag.getEnum(tag); |
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280 } |
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281 |
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282 @Override |
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283 public int getBCI(HotSpotMethodData data, int position) { |
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284 return data.readUnsignedShort(position, config.dataLayoutBCIOffset); |
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285 } |
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286 |
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287 @Override |
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288 public int getSize(HotSpotMethodData data, int position) { |
4444 | 289 return staticSize + getDynamicSize(data, position); |
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290 } |
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291 |
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292 @Override |
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293 public TriState getExceptionSeen(HotSpotMethodData data, int position) { |
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294 return TriState.get((getFlags(data, position) & EXCEPTIONS_MASK) != 0); |
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295 } |
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296 |
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297 @Override |
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298 public JavaTypeProfile getTypeProfile(HotSpotMethodData data, int position) { |
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299 return null; |
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300 } |
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301 |
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302 @Override |
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303 public JavaMethodProfile getMethodProfile(HotSpotMethodData data, int position) { |
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304 return null; |
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305 } |
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306 |
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307 @Override |
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308 public double getBranchTakenProbability(HotSpotMethodData data, int position) { |
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309 return -1; |
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310 } |
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311 |
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312 @Override |
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313 public double[] getSwitchProbabilities(HotSpotMethodData data, int position) { |
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314 return null; |
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315 } |
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316 |
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317 @Override |
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318 public int getExecutionCount(HotSpotMethodData data, int position) { |
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319 return -1; |
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320 } |
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321 |
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322 @Override |
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323 public TriState getNullSeen(HotSpotMethodData data, int position) { |
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324 return TriState.UNKNOWN; |
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325 } |
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326 |
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327 protected int getFlags(HotSpotMethodData data, int position) { |
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328 return data.readUnsignedByte(position, config.dataLayoutFlagsOffset); |
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329 } |
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330 |
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331 /** |
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332 * @param data |
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333 * @param position |
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334 */ |
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335 protected int getDynamicSize(HotSpotMethodData data, int position) { |
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336 return 0; |
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337 } |
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338 |
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339 public abstract StringBuilder appendTo(StringBuilder sb, HotSpotMethodData data, int pos); |
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340 } |
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341 |
4447 | 342 private static class NoMethodData extends AbstractMethodData { |
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343 |
4444 | 344 private static final int NO_DATA_SIZE = cellIndexToOffset(0); |
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345 |
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346 private final TriState exceptionSeen; |
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347 |
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348 protected NoMethodData(TriState exceptionSeen) { |
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349 super(Tag.No, NO_DATA_SIZE); |
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350 this.exceptionSeen = exceptionSeen; |
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351 } |
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352 |
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353 @Override |
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354 public int getBCI(HotSpotMethodData data, int position) { |
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355 return -1; |
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356 } |
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357 |
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358 @Override |
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359 public TriState getExceptionSeen(HotSpotMethodData data, int position) { |
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360 return exceptionSeen; |
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361 } |
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362 |
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363 @Override |
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364 public StringBuilder appendTo(StringBuilder sb, HotSpotMethodData data, int pos) { |
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365 return sb; |
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366 } |
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367 } |
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368 |
4447 | 369 private static class BitData extends AbstractMethodData { |
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370 |
4444 | 371 private static final int BIT_DATA_SIZE = cellIndexToOffset(0); |
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372 private static final int BIT_DATA_NULL_SEEN_FLAG = 0x01; |
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373 |
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374 private BitData() { |
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375 super(Tag.BitData, BIT_DATA_SIZE); |
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376 } |
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377 |
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378 protected BitData(Tag tag, int staticSize) { |
4444 | 379 super(tag, staticSize); |
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380 } |
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381 |
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382 @Override |
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383 public TriState getNullSeen(HotSpotMethodData data, int position) { |
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384 return TriState.get((getFlags(data, position) & BIT_DATA_NULL_SEEN_FLAG) != 0); |
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385 } |
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386 |
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387 @Override |
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388 public StringBuilder appendTo(StringBuilder sb, HotSpotMethodData data, int pos) { |
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389 return sb.append(format("exception_seen(%s)", getExceptionSeen(data, pos))); |
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390 } |
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391 } |
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392 |
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393 private static class CounterData extends BitData { |
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394 |
4444 | 395 private static final int COUNTER_DATA_SIZE = cellIndexToOffset(1); |
396 private static final int COUNTER_DATA_COUNT_OFFSET = cellIndexToOffset(0); | |
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397 |
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398 public CounterData() { |
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399 super(Tag.CounterData, COUNTER_DATA_SIZE); |
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400 } |
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401 |
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402 protected CounterData(Tag tag, int staticSize) { |
4444 | 403 super(tag, staticSize); |
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404 } |
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405 |
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406 @Override |
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407 public int getExecutionCount(HotSpotMethodData data, int position) { |
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408 return getCounterValue(data, position); |
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409 } |
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410 |
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411 protected int getCounterValue(HotSpotMethodData data, int position) { |
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412 return data.readUnsignedIntAsSignedInt(position, COUNTER_DATA_COUNT_OFFSET); |
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413 } |
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414 |
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415 @Override |
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416 public StringBuilder appendTo(StringBuilder sb, HotSpotMethodData data, int pos) { |
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417 return sb.append(format("count(%d) null_seen(%s) exception_seen(%s)", getCounterValue(data, pos), getNullSeen(data, pos), getExceptionSeen(data, pos))); |
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418 } |
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419 } |
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420 |
4447 | 421 private static class JumpData extends AbstractMethodData { |
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422 |
4444 | 423 private static final int JUMP_DATA_SIZE = cellIndexToOffset(2); |
424 protected static final int TAKEN_COUNT_OFFSET = cellIndexToOffset(0); | |
425 protected static final int TAKEN_DISPLACEMENT_OFFSET = cellIndexToOffset(1); | |
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426 |
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427 public JumpData() { |
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428 super(Tag.JumpData, JUMP_DATA_SIZE); |
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429 } |
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430 |
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431 protected JumpData(Tag tag, int staticSize) { |
4444 | 432 super(tag, staticSize); |
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433 } |
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434 |
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435 @Override |
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436 public double getBranchTakenProbability(HotSpotMethodData data, int position) { |
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437 return getExecutionCount(data, position) != 0 ? 1 : 0; |
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438 } |
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439 |
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440 @Override |
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441 public int getExecutionCount(HotSpotMethodData data, int position) { |
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442 return data.readUnsignedIntAsSignedInt(position, TAKEN_COUNT_OFFSET); |
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443 } |
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444 |
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445 public int getTakenDisplacement(HotSpotMethodData data, int position) { |
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446 return data.readInt(position, TAKEN_DISPLACEMENT_OFFSET); |
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447 } |
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448 |
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449 @Override |
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450 public StringBuilder appendTo(StringBuilder sb, HotSpotMethodData data, int pos) { |
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451 return sb.append(format("taken(%d) displacement(%d)", getExecutionCount(data, pos), getTakenDisplacement(data, pos))); |
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452 } |
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453 } |
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454 |
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455 static class RawItemProfile<T> { |
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456 final int entries; |
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457 final T[] items; |
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458 final long[] counts; |
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459 final long totalCount; |
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460 |
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461 public RawItemProfile(int entries, T[] items, long[] counts, long totalCount) { |
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462 this.entries = entries; |
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463 this.items = items; |
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464 this.counts = counts; |
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465 this.totalCount = totalCount; |
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466 } |
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467 } |
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468 |
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469 private abstract static class AbstractTypeData extends CounterData { |
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470 |
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471 protected static final int TYPE_DATA_ROW_SIZE = cellsToBytes(2); |
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472 |
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473 protected static final int NONPROFILED_COUNT_OFFSET = cellIndexToOffset(1); |
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474 protected static final int TYPE_DATA_FIRST_TYPE_OFFSET = cellIndexToOffset(2); |
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475 protected static final int TYPE_DATA_FIRST_TYPE_COUNT_OFFSET = cellIndexToOffset(3); |
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476 |
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477 protected AbstractTypeData(Tag tag, int staticSize) { |
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478 super(tag, staticSize); |
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479 } |
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480 |
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481 @Override |
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482 public JavaTypeProfile getTypeProfile(HotSpotMethodData data, int position) { |
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483 return createTypeProfile(getNullSeen(data, position), getRawTypeProfile(data, position)); |
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484 } |
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485 |
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486 private RawItemProfile<ResolvedJavaType> getRawTypeProfile(HotSpotMethodData data, int position) { |
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487 int typeProfileWidth = config.typeProfileWidth; |
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488 |
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489 ResolvedJavaType[] types = new ResolvedJavaType[typeProfileWidth]; |
5335
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types profiles are now sorted in descending order of each profiled type's probability
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490 long[] counts = new long[typeProfileWidth]; |
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491 long totalCount = 0; |
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492 int entries = 0; |
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493 |
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494 outer: for (int i = 0; i < typeProfileWidth; i++) { |
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495 long receiverKlass = data.readWord(position, getTypeOffset(i)); |
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496 if (receiverKlass != 0) { |
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497 HotSpotResolvedObjectTypeImpl klass = HotSpotResolvedObjectTypeImpl.fromMetaspaceKlass(receiverKlass); |
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498 long count = data.readUnsignedInt(position, getTypeCountOffset(i)); |
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499 /* |
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500 * Because of races in the profile collection machinery it's possible for a |
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501 * class to appear multiple times so merge them to make the profile look |
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502 * rational. |
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503 */ |
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504 for (int j = 0; j < entries; j++) { |
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505 if (types[j].equals(klass)) { |
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506 totalCount += count; |
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507 counts[j] += count; |
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508 continue outer; |
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509 } |
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510 } |
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511 types[entries] = klass; |
4447 | 512 totalCount += count; |
513 counts[entries] = count; | |
514 entries++; | |
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515 } |
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516 } |
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517 |
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|
518 totalCount += getTypesNotRecordedExecutionCount(data, position); |
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519 return new RawItemProfile<>(entries, types, counts, totalCount); |
4447 | 520 } |
521 | |
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522 protected abstract long getTypesNotRecordedExecutionCount(HotSpotMethodData data, int position); |
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523 |
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524 private static JavaTypeProfile createTypeProfile(TriState nullSeen, RawItemProfile<ResolvedJavaType> profile) { |
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525 if (profile.entries <= 0 || profile.totalCount <= 0) { |
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526 return null; |
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527 } |
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528 |
13139
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529 ProfiledType[] ptypes = new ProfiledType[profile.entries]; |
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|
530 double totalProbability = 0.0; |
13139
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|
531 for (int i = 0; i < profile.entries; i++) { |
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532 double p = profile.counts[i]; |
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533 p = p / profile.totalCount; |
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534 totalProbability += p; |
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535 ptypes[i] = new ProfiledType(profile.items[i], p); |
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536 } |
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537 |
5335
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538 Arrays.sort(ptypes); |
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539 |
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540 double notRecordedTypeProbability = profile.entries < config.typeProfileWidth ? 0.0 : Math.min(1.0, Math.max(0.0, 1.0 - totalProbability)); |
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541 assert notRecordedTypeProbability == 0 || profile.entries == config.typeProfileWidth; |
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542 return new JavaTypeProfile(nullSeen, notRecordedTypeProbability, ptypes); |
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543 } |
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544 |
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545 private static int getTypeOffset(int row) { |
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546 return TYPE_DATA_FIRST_TYPE_OFFSET + row * TYPE_DATA_ROW_SIZE; |
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547 } |
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548 |
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549 protected static int getTypeCountOffset(int row) { |
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550 return TYPE_DATA_FIRST_TYPE_COUNT_OFFSET + row * TYPE_DATA_ROW_SIZE; |
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551 } |
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552 |
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553 @Override |
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554 public StringBuilder appendTo(StringBuilder sb, HotSpotMethodData data, int pos) { |
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555 RawItemProfile<ResolvedJavaType> profile = getRawTypeProfile(data, pos); |
13164
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cleaned up HotSpotMethodData tracing a little and enabled it when -Dgraal.traceMethodDataFilter=true
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556 TriState nullSeen = getNullSeen(data, pos); |
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557 TriState exceptionSeen = getExceptionSeen(data, pos); |
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558 sb.append(format("count(%d) null_seen(%s) exception_seen(%s) nonprofiled_count(%d) entries(%d)", getCounterValue(data, pos), nullSeen, exceptionSeen, |
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559 getTypesNotRecordedExecutionCount(data, pos), profile.entries)); |
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560 for (int i = 0; i < profile.entries; i++) { |
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561 long count = profile.counts[i]; |
16479
558cf39c646b
moved toJavaName(JavaType type) from MetaUtil to be a default method in JavaType
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562 sb.append(format("%n %s (%d, %4.2f)", profile.items[i].toJavaName(), count, (double) count / profile.totalCount)); |
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563 } |
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564 return sb; |
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565 } |
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566 } |
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567 |
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568 private static class TypeCheckData extends AbstractTypeData { |
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569 |
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570 private static final int TYPE_CHECK_DATA_SIZE = cellIndexToOffset(2) + TYPE_DATA_ROW_SIZE * config.typeProfileWidth; |
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571 |
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572 public TypeCheckData() { |
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573 super(Tag.ReceiverTypeData, TYPE_CHECK_DATA_SIZE); |
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574 } |
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575 |
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576 @Override |
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577 public int getExecutionCount(HotSpotMethodData data, int position) { |
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578 return -1; |
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579 } |
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580 |
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581 @Override |
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582 protected long getTypesNotRecordedExecutionCount(HotSpotMethodData data, int position) { |
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583 return data.readUnsignedIntAsSignedInt(position, NONPROFILED_COUNT_OFFSET); |
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584 } |
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585 } |
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586 |
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587 private static class VirtualCallData extends AbstractTypeData { |
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588 |
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589 private static final int VIRTUAL_CALL_DATA_SIZE = cellIndexToOffset(2) + TYPE_DATA_ROW_SIZE * (config.typeProfileWidth + config.methodProfileWidth); |
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590 private static final int VIRTUAL_CALL_DATA_FIRST_METHOD_OFFSET = TYPE_DATA_FIRST_TYPE_OFFSET + TYPE_DATA_ROW_SIZE * config.typeProfileWidth; |
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591 private static final int VIRTUAL_CALL_DATA_FIRST_METHOD_COUNT_OFFSET = TYPE_DATA_FIRST_TYPE_COUNT_OFFSET + TYPE_DATA_ROW_SIZE * config.typeProfileWidth; |
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592 |
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593 public VirtualCallData() { |
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594 super(Tag.VirtualCallData, VIRTUAL_CALL_DATA_SIZE); |
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595 } |
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|
596 |
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597 @Override |
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598 public int getExecutionCount(HotSpotMethodData data, int position) { |
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599 final int typeProfileWidth = config.typeProfileWidth; |
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|
600 |
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601 long total = 0; |
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602 for (int i = 0; i < typeProfileWidth; i++) { |
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603 total += data.readUnsignedInt(position, getTypeCountOffset(i)); |
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604 } |
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605 |
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606 total += getCounterValue(data, position); |
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607 return truncateLongToInt(total); |
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608 } |
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|
609 |
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|
610 @Override |
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|
611 protected long getTypesNotRecordedExecutionCount(HotSpotMethodData data, int position) { |
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612 return getCounterValue(data, position); |
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|
613 } |
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|
614 |
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615 private static long getMethodsNotRecordedExecutionCount(HotSpotMethodData data, int position) { |
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616 return data.readUnsignedIntAsSignedInt(position, NONPROFILED_COUNT_OFFSET); |
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617 } |
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|
618 |
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|
619 @Override |
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|
620 public JavaMethodProfile getMethodProfile(HotSpotMethodData data, int position) { |
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|
621 return createMethodProfile(getRawMethodProfile(data, position)); |
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|
622 } |
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|
623 |
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624 private static RawItemProfile<ResolvedJavaMethod> getRawMethodProfile(HotSpotMethodData data, int position) { |
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625 int profileWidth = config.methodProfileWidth; |
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|
626 |
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627 ResolvedJavaMethod[] methods = new ResolvedJavaMethod[profileWidth]; |
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628 long[] counts = new long[profileWidth]; |
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|
629 long totalCount = 0; |
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630 int entries = 0; |
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631 |
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632 for (int i = 0; i < profileWidth; i++) { |
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633 long method = data.readWord(position, getMethodOffset(i)); |
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|
634 if (method != 0) { |
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diff
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|
635 methods[entries] = HotSpotResolvedJavaMethodImpl.fromMetaspace(method); |
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636 long count = data.readUnsignedInt(position, getMethodCountOffset(i)); |
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637 totalCount += count; |
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|
638 counts[entries] = count; |
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|
639 |
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|
640 entries++; |
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|
641 } |
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|
642 } |
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643 |
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644 totalCount += getMethodsNotRecordedExecutionCount(data, position); |
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645 return new RawItemProfile<>(entries, methods, counts, totalCount); |
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646 } |
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647 |
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648 private static JavaMethodProfile createMethodProfile(RawItemProfile<ResolvedJavaMethod> profile) { |
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649 if (profile.entries <= 0 || profile.totalCount <= 0) { |
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650 return null; |
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651 } |
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652 |
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653 ProfiledMethod[] pmethods = new ProfiledMethod[profile.entries]; |
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654 double totalProbability = 0.0; |
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655 for (int i = 0; i < profile.entries; i++) { |
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656 double p = profile.counts[i]; |
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657 p = p / profile.totalCount; |
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658 totalProbability += p; |
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659 pmethods[i] = new ProfiledMethod(profile.items[i], p); |
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660 } |
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661 |
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662 Arrays.sort(pmethods); |
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663 |
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664 double notRecordedMethodProbability = profile.entries < config.methodProfileWidth ? 0.0 : Math.min(1.0, Math.max(0.0, 1.0 - totalProbability)); |
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665 assert notRecordedMethodProbability == 0 || profile.entries == config.methodProfileWidth; |
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666 return new JavaMethodProfile(notRecordedMethodProbability, pmethods); |
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667 } |
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668 |
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669 private static int getMethodOffset(int row) { |
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670 return VIRTUAL_CALL_DATA_FIRST_METHOD_OFFSET + row * TYPE_DATA_ROW_SIZE; |
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671 } |
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672 |
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673 private static int getMethodCountOffset(int row) { |
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674 return VIRTUAL_CALL_DATA_FIRST_METHOD_COUNT_OFFSET + row * TYPE_DATA_ROW_SIZE; |
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675 } |
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676 |
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677 @Override |
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678 public StringBuilder appendTo(StringBuilder sb, HotSpotMethodData data, int pos) { |
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679 RawItemProfile<ResolvedJavaMethod> profile = getRawMethodProfile(data, pos); |
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680 super.appendTo(sb.append(format("exception_seen(%s) ", getExceptionSeen(data, pos))), data, pos).append(format("%nmethod_entries(%d)", profile.entries)); |
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681 for (int i = 0; i < profile.entries; i++) { |
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682 long count = profile.counts[i]; |
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683 sb.append(format("%n %s (%d, %4.2f)", profile.items[i].format("%H.%n(%p)"), count, (double) count / profile.totalCount)); |
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684 } |
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685 return sb; |
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686 } |
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687 } |
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688 |
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689 private static class RetData extends CounterData { |
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690 |
4444 | 691 private static final int RET_DATA_ROW_SIZE = cellsToBytes(3); |
692 private static final int RET_DATA_SIZE = cellIndexToOffset(1) + RET_DATA_ROW_SIZE * config.bciProfileWidth; | |
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693 |
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694 public RetData() { |
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695 super(Tag.RetData, RET_DATA_SIZE); |
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696 } |
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697 } |
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698 |
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699 private static class BranchData extends JumpData { |
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700 |
4444 | 701 private static final int BRANCH_DATA_SIZE = cellIndexToOffset(3); |
702 private static final int NOT_TAKEN_COUNT_OFFSET = cellIndexToOffset(2); | |
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703 |
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704 public BranchData() { |
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705 super(Tag.BranchData, BRANCH_DATA_SIZE); |
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706 } |
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707 |
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|
708 @Override |
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709 public double getBranchTakenProbability(HotSpotMethodData data, int position) { |
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710 long takenCount = data.readUnsignedInt(position, TAKEN_COUNT_OFFSET); |
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711 long notTakenCount = data.readUnsignedInt(position, NOT_TAKEN_COUNT_OFFSET); |
4441
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4440
diff
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|
712 long total = takenCount + notTakenCount; |
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4440
diff
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|
713 |
9928
a9311ec68721
Avoid graph caching if immature or no profiling information was used for graph building.
Christian Haeubl <haeubl@ssw.jku.at>
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9864
diff
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|
714 return total <= 0 ? -1 : takenCount / (double) total; |
4439
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715 } |
4444 | 716 |
717 @Override | |
718 public int getExecutionCount(HotSpotMethodData data, int position) { | |
719 long count = data.readUnsignedInt(position, TAKEN_COUNT_OFFSET) + data.readUnsignedInt(position, NOT_TAKEN_COUNT_OFFSET); | |
720 return truncateLongToInt(count); | |
721 } | |
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722 |
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|
723 @Override |
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|
724 public StringBuilder appendTo(StringBuilder sb, HotSpotMethodData data, int pos) { |
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725 long taken = data.readUnsignedInt(pos, TAKEN_COUNT_OFFSET); |
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|
726 long notTaken = data.readUnsignedInt(pos, NOT_TAKEN_COUNT_OFFSET); |
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727 double takenProbability = getBranchTakenProbability(data, pos); |
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13139
diff
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|
728 return sb.append(format("taken(%d, %4.2f) not_taken(%d, %4.2f) displacement(%d)", taken, takenProbability, notTaken, 1.0D - takenProbability, getTakenDisplacement(data, pos))); |
13139
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|
729 } |
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730 } |
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731 |
4447 | 732 private static class ArrayData extends AbstractMethodData { |
7530
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|
733 |
4444 | 734 private static final int ARRAY_DATA_LENGTH_OFFSET = cellIndexToOffset(0); |
735 protected static final int ARRAY_DATA_START_OFFSET = cellIndexToOffset(1); | |
4439
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736 |
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737 public ArrayData(Tag tag, int staticSize) { |
4444 | 738 super(tag, staticSize); |
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739 } |
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740 |
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741 @Override |
4444 | 742 protected int getDynamicSize(HotSpotMethodData data, int position) { |
743 return cellsToBytes(getLength(data, position)); | |
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744 } |
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|
745 |
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|
746 protected static int getLength(HotSpotMethodData data, int position) { |
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747 return data.readInt(position, ARRAY_DATA_LENGTH_OFFSET); |
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748 } |
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|
749 |
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|
750 @Override |
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|
751 public StringBuilder appendTo(StringBuilder sb, HotSpotMethodData data, int pos) { |
f9d908fb3492
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|
752 return sb.append(format("length(%d)", getLength(data, pos))); |
f9d908fb3492
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|
753 } |
4439
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754 } |
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|
755 |
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|
756 private static class MultiBranchData extends ArrayData { |
7530
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applied mx eclipseformat to all Java files
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|
757 |
4444 | 758 private static final int MULTI_BRANCH_DATA_SIZE = cellIndexToOffset(1); |
759 private static final int MULTI_BRANCH_DATA_ROW_SIZE_IN_CELLS = 2; | |
760 private static final int MULTI_BRANCH_DATA_ROW_SIZE = cellsToBytes(MULTI_BRANCH_DATA_ROW_SIZE_IN_CELLS); | |
761 private static final int MULTI_BRANCH_DATA_FIRST_COUNT_OFFSET = ARRAY_DATA_START_OFFSET + cellsToBytes(0); | |
762 private static final int MULTI_BRANCH_DATA_FIRST_DISPLACEMENT_OFFSET = ARRAY_DATA_START_OFFSET + cellsToBytes(1); | |
4439
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|
763 |
f7251c729b31
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|
764 public MultiBranchData() { |
14706
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add HotSpotMethodDataAccessor.Tag enum and dummy entries to PROFILE_DATA_ACCESSORS for new profile types
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14543
diff
changeset
|
765 super(Tag.MultiBranchData, MULTI_BRANCH_DATA_SIZE); |
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|
766 } |
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|
767 |
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changeset
|
768 @Override |
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|
769 public double[] getSwitchProbabilities(HotSpotMethodData data, int position) { |
4444 | 770 int arrayLength = getLength(data, position); |
771 assert arrayLength > 0 : "switch must have at least the default case"; | |
772 assert arrayLength % MULTI_BRANCH_DATA_ROW_SIZE_IN_CELLS == 0 : "array must have full rows"; | |
4441
4e3aaf14cbc6
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773 |
4444 | 774 int length = arrayLength / MULTI_BRANCH_DATA_ROW_SIZE_IN_CELLS; |
775 long totalCount = 0; | |
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776 double[] result = new double[length]; |
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777 |
4447 | 778 // default case is first in HotSpot but last for the compiler |
779 long count = readCount(data, position, 0); | |
4446 | 780 totalCount += count; |
781 result[length - 1] = count; | |
782 | |
783 for (int i = 1; i < length; i++) { | |
4447 | 784 count = readCount(data, position, i); |
4444 | 785 totalCount += count; |
4446 | 786 result[i - 1] = count; |
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787 } |
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788 |
9928
a9311ec68721
Avoid graph caching if immature or no profiling information was used for graph building.
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789 if (totalCount <= 0) { |
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790 return null; |
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791 } else { |
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792 for (int i = 0; i < length; i++) { |
4444 | 793 result[i] = result[i] / totalCount; |
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794 } |
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795 return result; |
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796 } |
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797 } |
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798 |
4447 | 799 private static long readCount(HotSpotMethodData data, int position, int i) { |
800 int offset; | |
801 long count; | |
802 offset = getCountOffset(i); | |
803 count = data.readUnsignedInt(position, offset); | |
804 return count; | |
805 } | |
806 | |
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807 @Override |
4440
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808 public int getExecutionCount(HotSpotMethodData data, int position) { |
4444 | 809 int arrayLength = getLength(data, position); |
810 assert arrayLength > 0 : "switch must have at least the default case"; | |
811 assert arrayLength % MULTI_BRANCH_DATA_ROW_SIZE_IN_CELLS == 0 : "array must have full rows"; | |
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812 |
4444 | 813 int length = arrayLength / MULTI_BRANCH_DATA_ROW_SIZE_IN_CELLS; |
814 long totalCount = 0; | |
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815 for (int i = 0; i < length; i++) { |
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816 int offset = getCountOffset(i); |
4444 | 817 totalCount += data.readUnsignedInt(position, offset); |
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818 } |
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819 |
4444 | 820 return truncateLongToInt(totalCount); |
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821 } |
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822 |
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823 private static int getCountOffset(int index) { |
4444 | 824 return MULTI_BRANCH_DATA_FIRST_COUNT_OFFSET + index * MULTI_BRANCH_DATA_ROW_SIZE; |
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825 } |
4452
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826 |
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827 private static int getDisplacementOffset(int index) { |
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828 return MULTI_BRANCH_DATA_FIRST_DISPLACEMENT_OFFSET + index * MULTI_BRANCH_DATA_ROW_SIZE; |
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829 } |
13139
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added toString() to HotSpotMethodData to assist with debugging low-level profile data reading
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830 |
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831 @Override |
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832 public StringBuilder appendTo(StringBuilder sb, HotSpotMethodData data, int pos) { |
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833 int entries = getLength(data, pos) / MULTI_BRANCH_DATA_ROW_SIZE_IN_CELLS; |
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834 sb.append(format("entries(%d)", entries)); |
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835 for (int i = 0; i < entries; i++) { |
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836 sb.append(format("%n %d: count(%d) displacement(%d)", i, data.readUnsignedInt(pos, getCountOffset(i)), data.readUnsignedInt(pos, getDisplacementOffset(i)))); |
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837 } |
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838 return sb; |
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839 } |
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840 } |
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841 |
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842 private static class ArgInfoData extends ArrayData { |
7530
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843 |
4444 | 844 private static final int ARG_INFO_DATA_SIZE = cellIndexToOffset(1); |
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845 |
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846 public ArgInfoData() { |
14706
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add HotSpotMethodDataAccessor.Tag enum and dummy entries to PROFILE_DATA_ACCESSORS for new profile types
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847 super(Tag.ArgInfoData, ARG_INFO_DATA_SIZE); |
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848 } |
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849 } |
14543
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removed ResolvedJavaMethod.getCompilerStorage(); moved last compiled graph node count into profiling info (i.e. MethodData metadata)
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850 |
21552
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851 public void setCompiledIRSize(int size) { |
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852 unsafe.putInt(metaspaceMethodData + config.methodDataIRSizeOffset, size); |
14543
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853 } |
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Doug Simon <doug.simon@oracle.com>
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854 |
21552
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855 public int getCompiledIRSize() { |
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856 return unsafe.getInt(metaspaceMethodData + config.methodDataIRSizeOffset); |
14543
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857 } |
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858 } |