Mercurial > hg > truffle

comparison graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotProfilingInfo.java @ 21551:5324104ac4f3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 26 May 2015 17:13:37 +0200
parents
children
comparison
equal deleted inserted replaced
21550:f48a6cea31eb 21551:5324104ac4f3
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 com.oracle.jvmci.hotspot;
24
25 import com.oracle.graal.api.meta.*;
26 import com.oracle.graal.debug.*;
27
28 public final class HotSpotProfilingInfo implements ProfilingInfo, HotSpotProxified {
29
30 private static final DebugMetric metricInsufficentSpace = Debug.metric("InsufficientSpaceForProfilingData");
31
32 private final HotSpotMethodData methodData;
33 private final HotSpotResolvedJavaMethod method;
34
35 private boolean isMature;
36 private int position;
37 private int hintPosition;
38 private int hintBCI;
39 private HotSpotMethodDataAccessor dataAccessor;
40
41 private boolean includeNormal;
42 private boolean includeOSR;
43
44 public HotSpotProfilingInfo(HotSpotMethodData methodData, HotSpotResolvedJavaMethod method, boolean includeNormal, boolean includeOSR) {
45 this.methodData = methodData;
46 this.method = method;
47 this.includeNormal = includeNormal;
48 this.includeOSR = includeOSR;
49 this.isMature = methodData.isProfileMature();
50 hintPosition = 0;
51 hintBCI = -1;
52 }
53
54 @Override
55 public int getCodeSize() {
56 return method.getCodeSize();
57 }
58
59 @Override
60 public JavaTypeProfile getTypeProfile(int bci) {
61 if (!isMature) {
62 return null;
63 }
64 findBCI(bci, false);
65 return dataAccessor.getTypeProfile(methodData, position);
66 }
67
68 @Override
69 public JavaMethodProfile getMethodProfile(int bci) {
70 if (!isMature) {
71 return null;
72 }
73 findBCI(bci, false);
74 return dataAccessor.getMethodProfile(methodData, position);
75 }
76
77 @Override
78 public double getBranchTakenProbability(int bci) {
79 if (!isMature) {
80 return -1;
81 }
82 findBCI(bci, false);
83 return dataAccessor.getBranchTakenProbability(methodData, position);
84 }
85
86 @Override
87 public double[] getSwitchProbabilities(int bci) {
88 if (!isMature) {
89 return null;
90 }
91 findBCI(bci, false);
92 return dataAccessor.getSwitchProbabilities(methodData, position);
93 }
94
95 @Override
96 public TriState getExceptionSeen(int bci) {
97 findBCI(bci, true);
98 return dataAccessor.getExceptionSeen(methodData, position);
99 }
100
101 @Override
102 public TriState getNullSeen(int bci) {
103 findBCI(bci, false);
104 return dataAccessor.getNullSeen(methodData, position);
105 }
106
107 @Override
108 public int getExecutionCount(int bci) {
109 if (!isMature) {
110 return -1;
111 }
112 findBCI(bci, false);
113 return dataAccessor.getExecutionCount(methodData, position);
114 }
115
116 @Override
117 public int getDeoptimizationCount(DeoptimizationReason reason) {
118 int count = 0;
119 if (includeNormal) {
120 count += methodData.getDeoptimizationCount(reason);
121 }
122 if (includeOSR) {
123 count += methodData.getOSRDeoptimizationCount(reason);
124 }
125 return count;
126 }
127
128 private void findBCI(int targetBCI, boolean searchExtraData) {
129 assert targetBCI >= 0 : "invalid BCI";
130
131 if (methodData.hasNormalData()) {
132 int currentPosition = targetBCI < hintBCI ? 0 : hintPosition;
133 HotSpotMethodDataAccessor currentAccessor;
134 while ((currentAccessor = methodData.getNormalData(currentPosition)) != null) {
135 int currentBCI = currentAccessor.getBCI(methodData, currentPosition);
136 if (currentBCI == targetBCI) {
137 normalDataFound(currentAccessor, currentPosition, currentBCI);
138 return;
139 } else if (currentBCI > targetBCI) {
140 break;
141 }
142 currentPosition = currentPosition + currentAccessor.getSize(methodData, currentPosition);
143 }
144 }
145
146 boolean exceptionPossiblyNotRecorded = false;
147 if (searchExtraData && methodData.hasExtraData()) {
148 int currentPosition = methodData.getExtraDataBeginOffset();
149 HotSpotMethodDataAccessor currentAccessor;
150 while ((currentAccessor = methodData.getExtraData(currentPosition)) != null) {
151 int currentBCI = currentAccessor.getBCI(methodData, currentPosition);
152 if (currentBCI == targetBCI) {
153 extraDataFound(currentAccessor, currentPosition);
154 return;
155 }
156 currentPosition = currentPosition + currentAccessor.getSize(methodData, currentPosition);
157 }
158
159 if (!methodData.isWithin(currentPosition)) {
160 exceptionPossiblyNotRecorded = true;
161 metricInsufficentSpace.increment();
162 }
163 }
164
165 noDataFound(exceptionPossiblyNotRecorded);
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
178 private void noDataFound(boolean exceptionPossiblyNotRecorded) {
179 HotSpotMethodDataAccessor accessor = HotSpotMethodData.getNoDataAccessor(exceptionPossiblyNotRecorded);
180 setCurrentData(accessor, -1);
181 }
182
183 private void setCurrentData(HotSpotMethodDataAccessor dataAccessor, int position) {
184 this.dataAccessor = dataAccessor;
185 this.position = position;
186 }
187
188 @Override
189 public boolean isMature() {
190 return isMature;
191 }
192
193 public void ignoreMature() {
194 isMature = true;
195 }
196
197 @Override
198 public String toString() {
199 return "HotSpotProfilingInfo<" + this.toString(null, "; ") + ">";
200 }
201
202 @Override
203 public void setMature() {
204 isMature = true;
205 }
206
207 /**
208 * {@code MethodData::_jvmci_ir_size} (currently) supports at most one JVMCI compiler IR type
209 * which will be determined by the first JVMCI compiler that calls
210 * {@link #setCompilerIRSize(Class, int)}.
211 */
212 private static volatile Class<?> supportedCompilerIRType;
213
214 @Override
215 public boolean setCompilerIRSize(Class<?> irType, int size) {
216 if (supportedCompilerIRType == null) {
217 synchronized (HotSpotProfilingInfo.class) {
218 if (supportedCompilerIRType == null) {
219 supportedCompilerIRType = irType;
220 }
221 }
222 }
223 if (supportedCompilerIRType != irType) {
224 return false;
225 }
226 methodData.setCompiledIRSize(size);
227 return true;
228 }
229
230 @Override
231 public int getCompilerIRSize(Class<?> irType) {
232 if (irType == supportedCompilerIRType) {
233 return methodData.getCompiledIRSize();
234 }
235 return -1;
236 }
237 }