Mercurial > hg > graal-compiler
annotate graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/DefaultProfilingInfo.java @ 21619:b14a218c5471
Fix in the dominator based conditional elimination for the corner case of a loop exit merge.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sun, 31 May 2015 22:48:50 +0200 |
parents | 48c1ebd24120 |
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rev | line source |
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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.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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88 |
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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) { |
12eaf1a47a90
removed ResolvedJavaMethod.getCompilerStorage(); moved last compiled graph node count into profiling info (i.e. MethodData metadata)
Doug Simon <doug.simon@oracle.com>
parents:
13769
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changeset
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108 return -1; |
12eaf1a47a90
removed ResolvedJavaMethod.getCompilerStorage(); moved last compiled graph node count into profiling info (i.e. MethodData metadata)
Doug Simon <doug.simon@oracle.com>
parents:
13769
diff
changeset
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109 } |
5105
95b8a32a7cc3
preparations to avoid endless recompilations because of not updated profiling information
Christian Haeubl <christian.haeubl@oracle.com>
parents:
diff
changeset
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110 } |