Mercurial > hg > graal-jvmci-8
comparison jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotProfilingInfo.java @ 22672:1bbd4a7c274b
Rename jdk.internal.jvmci to jdk.vm.ci
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Thu, 08 Oct 2015 17:28:41 -0700 |
parents | jvmci/jdk.internal.jvmci.hotspot/src/jdk/internal/jvmci/hotspot/HotSpotProfilingInfo.java@ec96f33a101d |
children | 55877421f72a |
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22671:97f30e4d0e95 | 22672:1bbd4a7c274b |
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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 */ | |
23 package jdk.vm.ci.hotspot; | |
24 | |
25 import jdk.vm.ci.meta.DeoptimizationReason; | |
26 import jdk.vm.ci.meta.JavaMethodProfile; | |
27 import jdk.vm.ci.meta.JavaTypeProfile; | |
28 import jdk.vm.ci.meta.ProfilingInfo; | |
29 import jdk.vm.ci.meta.TriState; | |
30 | |
31 public final class HotSpotProfilingInfo implements ProfilingInfo, HotSpotProxified { | |
32 | |
33 // private static final DebugMetric metricInsufficentSpace = | |
34 // Debug.metric("InsufficientSpaceForProfilingData"); | |
35 | |
36 private final HotSpotMethodData methodData; | |
37 private final HotSpotResolvedJavaMethod method; | |
38 | |
39 private boolean isMature; | |
40 private int position; | |
41 private int hintPosition; | |
42 private int hintBCI; | |
43 private HotSpotMethodDataAccessor dataAccessor; | |
44 | |
45 private boolean includeNormal; | |
46 private boolean includeOSR; | |
47 | |
48 public HotSpotProfilingInfo(HotSpotMethodData methodData, HotSpotResolvedJavaMethod method, boolean includeNormal, boolean includeOSR) { | |
49 this.methodData = methodData; | |
50 this.method = method; | |
51 this.includeNormal = includeNormal; | |
52 this.includeOSR = includeOSR; | |
53 this.isMature = methodData.isProfileMature(); | |
54 hintPosition = 0; | |
55 hintBCI = -1; | |
56 } | |
57 | |
58 @Override | |
59 public int getCodeSize() { | |
60 return method.getCodeSize(); | |
61 } | |
62 | |
63 @Override | |
64 public JavaTypeProfile getTypeProfile(int bci) { | |
65 if (!isMature) { | |
66 return null; | |
67 } | |
68 findBCI(bci, false); | |
69 return dataAccessor.getTypeProfile(methodData, position); | |
70 } | |
71 | |
72 @Override | |
73 public JavaMethodProfile getMethodProfile(int bci) { | |
74 if (!isMature) { | |
75 return null; | |
76 } | |
77 findBCI(bci, false); | |
78 return dataAccessor.getMethodProfile(methodData, position); | |
79 } | |
80 | |
81 @Override | |
82 public double getBranchTakenProbability(int bci) { | |
83 if (!isMature) { | |
84 return -1; | |
85 } | |
86 findBCI(bci, false); | |
87 return dataAccessor.getBranchTakenProbability(methodData, position); | |
88 } | |
89 | |
90 @Override | |
91 public double[] getSwitchProbabilities(int bci) { | |
92 if (!isMature) { | |
93 return null; | |
94 } | |
95 findBCI(bci, false); | |
96 return dataAccessor.getSwitchProbabilities(methodData, position); | |
97 } | |
98 | |
99 @Override | |
100 public TriState getExceptionSeen(int bci) { | |
101 findBCI(bci, true); | |
102 return dataAccessor.getExceptionSeen(methodData, position); | |
103 } | |
104 | |
105 @Override | |
106 public TriState getNullSeen(int bci) { | |
107 findBCI(bci, false); | |
108 return dataAccessor.getNullSeen(methodData, position); | |
109 } | |
110 | |
111 @Override | |
112 public int getExecutionCount(int bci) { | |
113 if (!isMature) { | |
114 return -1; | |
115 } | |
116 findBCI(bci, false); | |
117 return dataAccessor.getExecutionCount(methodData, position); | |
118 } | |
119 | |
120 @Override | |
121 public int getDeoptimizationCount(DeoptimizationReason reason) { | |
122 int count = 0; | |
123 if (includeNormal) { | |
124 count += methodData.getDeoptimizationCount(reason); | |
125 } | |
126 if (includeOSR) { | |
127 count += methodData.getOSRDeoptimizationCount(reason); | |
128 } | |
129 return count; | |
130 } | |
131 | |
132 private void findBCI(int targetBCI, boolean searchExtraData) { | |
133 assert targetBCI >= 0 : "invalid BCI"; | |
134 | |
135 if (methodData.hasNormalData()) { | |
136 int currentPosition = targetBCI < hintBCI ? 0 : hintPosition; | |
137 HotSpotMethodDataAccessor currentAccessor; | |
138 while ((currentAccessor = methodData.getNormalData(currentPosition)) != null) { | |
139 int currentBCI = currentAccessor.getBCI(methodData, currentPosition); | |
140 if (currentBCI == targetBCI) { | |
141 normalDataFound(currentAccessor, currentPosition, currentBCI); | |
142 return; | |
143 } else if (currentBCI > targetBCI) { | |
144 break; | |
145 } | |
146 currentPosition = currentPosition + currentAccessor.getSize(methodData, currentPosition); | |
147 } | |
148 } | |
149 | |
150 boolean exceptionPossiblyNotRecorded = false; | |
151 if (searchExtraData && methodData.hasExtraData()) { | |
152 int currentPosition = methodData.getExtraDataBeginOffset(); | |
153 HotSpotMethodDataAccessor currentAccessor; | |
154 while ((currentAccessor = methodData.getExtraData(currentPosition)) != null) { | |
155 int currentBCI = currentAccessor.getBCI(methodData, currentPosition); | |
156 if (currentBCI == targetBCI) { | |
157 extraDataFound(currentAccessor, currentPosition); | |
158 return; | |
159 } | |
160 currentPosition = currentPosition + currentAccessor.getSize(methodData, currentPosition); | |
161 } | |
162 | |
163 if (!methodData.isWithin(currentPosition)) { | |
164 exceptionPossiblyNotRecorded = true; | |
165 // metricInsufficentSpace.increment(); | |
166 } | |
167 } | |
168 | |
169 noDataFound(exceptionPossiblyNotRecorded); | |
170 } | |
171 | |
172 private void normalDataFound(HotSpotMethodDataAccessor data, int pos, int bci) { | |
173 setCurrentData(data, pos); | |
174 this.hintPosition = position; | |
175 this.hintBCI = bci; | |
176 } | |
177 | |
178 private void extraDataFound(HotSpotMethodDataAccessor data, int pos) { | |
179 setCurrentData(data, pos); | |
180 } | |
181 | |
182 private void noDataFound(boolean exceptionPossiblyNotRecorded) { | |
183 HotSpotMethodDataAccessor accessor = HotSpotMethodData.getNoDataAccessor(exceptionPossiblyNotRecorded); | |
184 setCurrentData(accessor, -1); | |
185 } | |
186 | |
187 private void setCurrentData(HotSpotMethodDataAccessor dataAccessor, int position) { | |
188 this.dataAccessor = dataAccessor; | |
189 this.position = position; | |
190 } | |
191 | |
192 @Override | |
193 public boolean isMature() { | |
194 return isMature; | |
195 } | |
196 | |
197 public void ignoreMature() { | |
198 isMature = true; | |
199 } | |
200 | |
201 @Override | |
202 public String toString() { | |
203 return "HotSpotProfilingInfo<" + this.toString(null, "; ") + ">"; | |
204 } | |
205 | |
206 @Override | |
207 public void setMature() { | |
208 isMature = true; | |
209 } | |
210 | |
211 /** | |
212 * {@code MethodData::_jvmci_ir_size} (currently) supports at most one JVMCI compiler IR type | |
213 * which will be determined by the first JVMCI compiler that calls | |
214 * {@link #setCompilerIRSize(Class, int)}. | |
215 */ | |
216 private static volatile Class<?> supportedCompilerIRType; | |
217 | |
218 @Override | |
219 public boolean setCompilerIRSize(Class<?> irType, int size) { | |
220 if (supportedCompilerIRType == null) { | |
221 synchronized (HotSpotProfilingInfo.class) { | |
222 if (supportedCompilerIRType == null) { | |
223 supportedCompilerIRType = irType; | |
224 } | |
225 } | |
226 } | |
227 if (supportedCompilerIRType != irType) { | |
228 return false; | |
229 } | |
230 methodData.setCompiledIRSize(size); | |
231 return true; | |
232 } | |
233 | |
234 @Override | |
235 public int getCompilerIRSize(Class<?> irType) { | |
236 if (irType == supportedCompilerIRType) { | |
237 return methodData.getCompiledIRSize(); | |
238 } | |
239 return -1; | |
240 } | |
241 } |