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annotate graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/DefaultProfilingInfo.java @ 16490:cac0a7d1c325

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moved profileToString(ProfilingInfo info, ResolvedJavaMethod method, String sep) from MetaUtil to be a default method in ProfilingInfo
author Doug Simon <doug.simon@oracle.com>
date Thu, 10 Jul 2014 23:56:39 +0200
parents 12eaf1a47a90
children
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1 /*
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2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.api.meta;
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24
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25 /**
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26 * An implementation of {@link ProfilingInfo} that can used in the absence of real profile
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27 * information.
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28 */
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29 public final class DefaultProfilingInfo implements ProfilingInfo {
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30
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31 private static final ProfilingInfo[] NO_PROFILING_INFO = new ProfilingInfo[]{new DefaultProfilingInfo(TriState.TRUE), new DefaultProfilingInfo(TriState.FALSE),
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32 new DefaultProfilingInfo(TriState.UNKNOWN)};
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33
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34 private final TriState exceptionSeen;
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35
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36 DefaultProfilingInfo(TriState exceptionSeen) {
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37 this.exceptionSeen = exceptionSeen;
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38 }
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39
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40 @Override
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41 public int getCodeSize() {
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42 return 0;
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43 }
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44
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45 @Override
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46 public JavaTypeProfile getTypeProfile(int bci) {
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47 return null;
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48 }
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49
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50 @Override
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51 public JavaMethodProfile getMethodProfile(int bci) {
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52 return null;
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53 }
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54
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55 @Override
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56 public double getBranchTakenProbability(int bci) {
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57 return -1;
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58 }
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59
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60 @Override
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61 public double[] getSwitchProbabilities(int bci) {
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62 return null;
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63 }
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64
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65 @Override
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66 public TriState getExceptionSeen(int bci) {
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67 return exceptionSeen;
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68 }
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69
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70 @Override
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71 public TriState getNullSeen(int bci) {
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72 return TriState.UNKNOWN;
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73 }
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74
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75 @Override
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76 public int getExecutionCount(int bci) {
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77 return -1;
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78 }
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79
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80 public static ProfilingInfo get(TriState exceptionSeen) {
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81 return NO_PROFILING_INFO[exceptionSeen.ordinal()];
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82 }
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83
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84 @Override
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85 public int getDeoptimizationCount(DeoptimizationReason reason) {
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86 return 0;
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87 }
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89 @Override
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90 public boolean isMature() {
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91 return false;
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92 }
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93
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94 @Override
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95 public String toString() {
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96 return "BaseProfilingInfo<" + this.toString(null, "; ") + ">";
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97 }
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98
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99 public void setMature() {
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100 // Do nothing
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101 }
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102
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103 public boolean setCompilerIRSize(Class<?> irType, int nodeCount) {
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104 return false;
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105 }
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106
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107 public int getCompilerIRSize(Class<?> irType) {
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108 return -1;
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109 }
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110 }