Mercurial > hg > graal-jvmci-8
annotate jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotProfilingInfo.java @ 23703:9ac04c6047c8
sync with jdk9 changes for JDK-8159613
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Tue, 21 Jun 2016 09:48:02 +0200 |
parents | 1d4ce2d19e52 |
children | c64c9fac1ab9 |
rev | line source |
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4446 | 1 /* |
2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 */ | |
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23 package jdk.vm.ci.hotspot; |
4446 | 24 |
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25 import jdk.vm.ci.meta.DeoptimizationReason; |
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26 import jdk.vm.ci.meta.JavaMethodProfile; |
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27 import jdk.vm.ci.meta.JavaTypeProfile; |
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28 import jdk.vm.ci.meta.ProfilingInfo; |
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29 import jdk.vm.ci.meta.TriState; |
4446 | 30 |
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31 public final class HotSpotProfilingInfo implements ProfilingInfo { |
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33 private final HotSpotMethodData methodData; |
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34 private final HotSpotResolvedJavaMethod method; |
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35 |
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36 private boolean isMature; |
4446 | 37 private int position; |
38 private int hintPosition; | |
39 private int hintBCI; | |
40 private HotSpotMethodDataAccessor dataAccessor; | |
41 | |
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42 private boolean includeNormal; |
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43 private boolean includeOSR; |
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44 |
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45 public HotSpotProfilingInfo(HotSpotMethodData methodData, HotSpotResolvedJavaMethod method, boolean includeNormal, boolean includeOSR) { |
4446 | 46 this.methodData = methodData; |
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47 this.method = method; |
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48 this.includeNormal = includeNormal; |
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49 this.includeOSR = includeOSR; |
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50 this.isMature = methodData.isProfileMature(); |
4446 | 51 hintPosition = 0; |
52 hintBCI = -1; | |
53 } | |
54 | |
55 @Override | |
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56 public int getCodeSize() { |
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57 return method.getCodeSize(); |
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58 } |
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59 |
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60 @Override |
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61 public JavaTypeProfile getTypeProfile(int bci) { |
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62 if (!isMature) { |
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63 return null; |
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64 } |
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65 findBCI(bci, false); |
4446 | 66 return dataAccessor.getTypeProfile(methodData, position); |
67 } | |
68 | |
69 @Override | |
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70 public JavaMethodProfile getMethodProfile(int bci) { |
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71 if (!isMature) { |
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72 return null; |
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73 } |
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74 findBCI(bci, false); |
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75 return dataAccessor.getMethodProfile(methodData, position); |
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76 } |
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77 |
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78 @Override |
4446 | 79 public double getBranchTakenProbability(int bci) { |
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80 if (!isMature) { |
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81 return -1; |
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82 } |
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83 findBCI(bci, false); |
4446 | 84 return dataAccessor.getBranchTakenProbability(methodData, position); |
85 } | |
86 | |
87 @Override | |
88 public double[] getSwitchProbabilities(int bci) { | |
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89 if (!isMature) { |
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90 return null; |
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91 } |
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92 findBCI(bci, false); |
4446 | 93 return dataAccessor.getSwitchProbabilities(methodData, position); |
94 } | |
95 | |
96 @Override | |
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97 public TriState getExceptionSeen(int bci) { |
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98 findBCI(bci, true); |
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99 return dataAccessor.getExceptionSeen(methodData, position); |
4446 | 100 } |
101 | |
102 @Override | |
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103 public TriState getNullSeen(int bci) { |
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104 findBCI(bci, false); |
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105 return dataAccessor.getNullSeen(methodData, position); |
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106 } |
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107 |
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108 @Override |
4446 | 109 public int getExecutionCount(int bci) { |
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110 if (!isMature) { |
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111 return -1; |
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112 } |
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113 findBCI(bci, false); |
4446 | 114 return dataAccessor.getExecutionCount(methodData, position); |
115 } | |
116 | |
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117 @Override |
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118 public int getDeoptimizationCount(DeoptimizationReason reason) { |
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119 int count = 0; |
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120 if (includeNormal) { |
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121 count += methodData.getDeoptimizationCount(reason); |
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122 } |
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123 if (includeOSR) { |
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124 count += methodData.getOSRDeoptimizationCount(reason); |
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125 } |
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126 return count; |
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127 } |
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128 |
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129 private void findBCI(int targetBCI, boolean searchExtraData) { |
4446 | 130 assert targetBCI >= 0 : "invalid BCI"; |
131 | |
132 if (methodData.hasNormalData()) { | |
133 int currentPosition = targetBCI < hintBCI ? 0 : hintPosition; | |
134 HotSpotMethodDataAccessor currentAccessor; | |
135 while ((currentAccessor = methodData.getNormalData(currentPosition)) != null) { | |
136 int currentBCI = currentAccessor.getBCI(methodData, currentPosition); | |
137 if (currentBCI == targetBCI) { | |
138 normalDataFound(currentAccessor, currentPosition, currentBCI); | |
139 return; | |
140 } else if (currentBCI > targetBCI) { | |
141 break; | |
142 } | |
143 currentPosition = currentPosition + currentAccessor.getSize(methodData, currentPosition); | |
144 } | |
145 } | |
146 | |
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147 boolean exceptionPossiblyNotRecorded = false; |
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148 if (searchExtraData && methodData.hasExtraData()) { |
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149 int currentPosition = methodData.getExtraDataBeginOffset(); |
4446 | 150 HotSpotMethodDataAccessor currentAccessor; |
151 while ((currentAccessor = methodData.getExtraData(currentPosition)) != null) { | |
152 int currentBCI = currentAccessor.getBCI(methodData, currentPosition); | |
153 if (currentBCI == targetBCI) { | |
154 extraDataFound(currentAccessor, currentPosition); | |
155 return; | |
156 } | |
157 currentPosition = currentPosition + currentAccessor.getSize(methodData, currentPosition); | |
158 } | |
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159 |
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160 if (!methodData.isWithin(currentPosition)) { |
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161 exceptionPossiblyNotRecorded = true; |
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162 } |
4446 | 163 } |
164 | |
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165 noDataFound(exceptionPossiblyNotRecorded); |
4446 | 166 } |
167 | |
168 private void normalDataFound(HotSpotMethodDataAccessor data, int pos, int bci) { | |
169 setCurrentData(data, pos); | |
170 this.hintPosition = position; | |
171 this.hintBCI = bci; | |
172 } | |
173 | |
174 private void extraDataFound(HotSpotMethodDataAccessor data, int pos) { | |
175 setCurrentData(data, pos); | |
176 } | |
177 | |
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178 private void noDataFound(boolean exceptionPossiblyNotRecorded) { |
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179 HotSpotMethodDataAccessor accessor = HotSpotMethodData.getNoDataAccessor(exceptionPossiblyNotRecorded); |
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180 setCurrentData(accessor, -1); |
4446 | 181 } |
182 | |
183 private void setCurrentData(HotSpotMethodDataAccessor dataAccessor, int position) { | |
184 this.dataAccessor = dataAccessor; | |
185 this.position = position; | |
186 } | |
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187 |
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188 @Override |
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189 public boolean isMature() { |
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190 return isMature; |
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191 } |
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192 |
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193 public void ignoreMature() { |
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194 isMature = true; |
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195 } |
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196 |
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197 @Override |
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198 public String toString() { |
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199 return "HotSpotProfilingInfo<" + this.toString(null, "; ") + ">"; |
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200 } |
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201 |
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202 @Override |
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203 public void setMature() { |
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204 isMature = true; |
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205 } |
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206 |
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207 /** |
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208 * {@code MethodData::_jvmci_ir_size} (currently) supports at most one JVMCI compiler IR type |
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209 * which will be determined by the first JVMCI compiler that calls |
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210 * {@link #setCompilerIRSize(Class, int)}. |
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211 */ |
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212 private static volatile Class<?> supportedCompilerIRType; |
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213 |
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214 @Override |
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215 public boolean setCompilerIRSize(Class<?> irType, int size) { |
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216 if (supportedCompilerIRType == null) { |
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217 synchronized (HotSpotProfilingInfo.class) { |
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218 if (supportedCompilerIRType == null) { |
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219 supportedCompilerIRType = irType; |
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220 } |
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221 } |
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222 } |
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223 if (supportedCompilerIRType != irType) { |
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224 return false; |
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225 } |
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226 methodData.setCompiledIRSize(size); |
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227 return true; |
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228 } |
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229 |
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230 @Override |
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231 public int getCompilerIRSize(Class<?> irType) { |
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232 if (irType == supportedCompilerIRType) { |
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233 return methodData.getCompiledIRSize(); |
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234 } |
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235 return -1; |
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236 } |
4446 | 237 } |