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annotate graal/com.oracle.graal.phases/src/com/oracle/graal/phases/OptimisticOptimizations.java @ 16036:4161a58e48cb

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refactor/simplify Constant
author Lukas Stadler <lukas.stadler@oracle.com>
date Thu, 05 Jun 2014 13:19:59 +0200
parents d90e5c22ba55
children b1530a6cce8c
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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.phases;
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24
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25 import java.util.*;
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26
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27 import com.oracle.graal.api.meta.*;
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28 import com.oracle.graal.compiler.common.*;
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29 import com.oracle.graal.debug.*;
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31 public final class OptimisticOptimizations {
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32
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33 public static final OptimisticOptimizations ALL = new OptimisticOptimizations(EnumSet.allOf(Optimization.class));
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34 public static final OptimisticOptimizations NONE = new OptimisticOptimizations(EnumSet.noneOf(Optimization.class));
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35 private static final DebugMetric disabledOptimisticOptsMetric = Debug.metric("DisabledOptimisticOpts");
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36
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37 public static enum Optimization {
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38 RemoveNeverExecutedCode,
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39 UseTypeCheckedInlining,
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40 UseTypeCheckHints,
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41 UseExceptionProbabilityForOperations,
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42 UseExceptionProbability,
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43 UseLoopLimitChecks
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44 }
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45
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46 private final Set<Optimization> enabledOpts;
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47
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48 public OptimisticOptimizations(ProfilingInfo info) {
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49 this.enabledOpts = EnumSet.noneOf(Optimization.class);
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50
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51 enabledOpts.add(Optimization.UseExceptionProbabilityForOperations);
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52 addOptimization(info, DeoptimizationReason.UnreachedCode, Optimization.RemoveNeverExecutedCode);
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53 addOptimization(info, DeoptimizationReason.TypeCheckedInliningViolated, Optimization.UseTypeCheckedInlining);
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54 addOptimization(info, DeoptimizationReason.OptimizedTypeCheckViolated, Optimization.UseTypeCheckHints);
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55 addOptimization(info, DeoptimizationReason.NotCompiledExceptionHandler, Optimization.UseExceptionProbability);
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56 addOptimization(info, DeoptimizationReason.LoopLimitCheck, Optimization.UseLoopLimitChecks);
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57 }
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58
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59 private void addOptimization(ProfilingInfo info, DeoptimizationReason deoptReason, Optimization optimization) {
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60 if (checkDeoptimizations(info, deoptReason)) {
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61 enabledOpts.add(optimization);
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62 } else {
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63 disabledOptimisticOptsMetric.increment();
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64 }
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65 }
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66
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67 public OptimisticOptimizations remove(Optimization... optimizations) {
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68 Set<Optimization> newOptimizations = EnumSet.copyOf(enabledOpts);
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69 for (Optimization o : optimizations) {
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70 newOptimizations.remove(o);
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71 }
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72 return new OptimisticOptimizations(newOptimizations);
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73 }
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74
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75 public OptimisticOptimizations add(Optimization... optimizations) {
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76 Set<Optimization> newOptimizations = EnumSet.copyOf(enabledOpts);
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77 for (Optimization o : optimizations) {
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78 newOptimizations.add(o);
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79 }
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80 return new OptimisticOptimizations(newOptimizations);
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81 }
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82
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83 private OptimisticOptimizations(Set<Optimization> enabledOpts) {
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84 this.enabledOpts = enabledOpts;
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85 }
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86
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87 public boolean removeNeverExecutedCode() {
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88 return GraalOptions.RemoveNeverExecutedCode.getValue() && enabledOpts.contains(Optimization.RemoveNeverExecutedCode);
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89 }
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90
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91 public boolean useTypeCheckHints() {
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92 return GraalOptions.UseTypeCheckHints.getValue() && enabledOpts.contains(Optimization.UseTypeCheckHints);
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93 }
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94
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95 public boolean inlineMonomorphicCalls() {
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96 return GraalOptions.InlineMonomorphicCalls.getValue() && enabledOpts.contains(Optimization.UseTypeCheckedInlining);
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97 }
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98
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99 public boolean inlinePolymorphicCalls() {
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100 return GraalOptions.InlinePolymorphicCalls.getValue() && enabledOpts.contains(Optimization.UseTypeCheckedInlining);
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101 }
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102
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103 public boolean inlineMegamorphicCalls() {
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104 return GraalOptions.InlineMegamorphicCalls.getValue() && enabledOpts.contains(Optimization.UseTypeCheckedInlining);
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105 }
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106
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107 public boolean devirtualizeInvokes() {
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108 return GraalOptions.OptDevirtualizeInvokesOptimistically.getValue() && enabledOpts.contains(Optimization.UseTypeCheckedInlining);
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109 }
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110
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111 public boolean useExceptionProbability() {
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112 return GraalOptions.UseExceptionProbability.getValue() && enabledOpts.contains(Optimization.UseExceptionProbability);
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113 }
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114
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115 public boolean useExceptionProbabilityForOperations() {
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116 return GraalOptions.UseExceptionProbabilityForOperations.getValue() && enabledOpts.contains(Optimization.UseExceptionProbabilityForOperations);
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117 }
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118
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119 public boolean useLoopLimitChecks() {
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120 return GraalOptions.UseLoopLimitChecks.getValue() && enabledOpts.contains(Optimization.UseLoopLimitChecks);
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121 }
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122
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123 public boolean lessOptimisticThan(OptimisticOptimizations other) {
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124 for (Optimization opt : Optimization.values()) {
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125 if (!enabledOpts.contains(opt) && other.enabledOpts.contains(opt)) {
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126 return true;
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127 }
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Christian Haeubl <christian.haeubl@oracle.com>
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128 }
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129 return false;
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130 }
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131
5541
b4c406861c33 More renamings to drop Ri* prefix completely. Deleted graph.BitMap class and replaced with java.util.BitSet.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5510
diff changeset
132 private static boolean checkDeoptimizations(ProfilingInfo profilingInfo, DeoptimizationReason reason) {
9864
063a712fe8d8 converted remaining options in GraalOptions to new system (GRAAL-27)
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133 return profilingInfo.getDeoptimizationCount(reason) < GraalOptions.DeoptsToDisableOptimisticOptimization.getValue();
5114
dad1ac9dba7d finished first implementation of disabling runtime feedback selectively based on deoptimization history
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parents:
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134 }
11646
8f8f6afeb97a New caching mechanism in TruffleCache for better compilation performance. Clean up of partial evaluator phases.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 9864
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135
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 9864
diff changeset
136 @Override
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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diff changeset
137 public String toString() {
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138 return enabledOpts.toString();
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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139 }
5114
dad1ac9dba7d finished first implementation of disabling runtime feedback selectively based on deoptimization history
Christian Haeubl <christian.haeubl@oracle.com>
parents:
diff changeset
140 }