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annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/parser/SpecializationGroup.java @ 19289:62c43fcf5be2

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Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
author Christian Humer <christian.humer@gmail.com>
date Tue, 03 Feb 2015 15:07:07 +0100
parents 08aa0372dad4
children f4792a544170
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1 /*
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2 * Copyright (c) 2012, 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.truffle.dsl.processor.parser;
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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.truffle.dsl.processor.model.*;
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28 import com.oracle.truffle.dsl.processor.model.TemplateMethod.TypeSignature;
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29
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30 /**
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31 * Class creates groups of specializations to optimize the layout of generated executeAndSpecialize
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32 * and generic execute methods.
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33 */
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34 public final class SpecializationGroup {
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35
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36 private final List<String> assumptions;
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37 private final List<TypeGuard> typeGuards;
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38 private final List<GuardExpression> guards;
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39
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40 private final NodeData node;
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41 private final SpecializationData specialization;
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42 private final List<SpecializationGroup> children = new ArrayList<>();
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43
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44 private SpecializationGroup parent;
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45
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46 private SpecializationGroup(SpecializationData data) {
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47 this.node = data.getNode();
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48 this.assumptions = new ArrayList<>();
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49 this.typeGuards = new ArrayList<>();
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50 this.guards = new ArrayList<>();
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51 this.specialization = data;
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52
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53 this.assumptions.addAll(data.getAssumptions());
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54 TypeSignature sig = data.getTypeSignature();
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55 for (int i = 1; i < sig.size(); i++) {
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56 typeGuards.add(new TypeGuard(sig.get(i), i - 1));
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57 }
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58 this.guards.addAll(data.getGuards());
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59 }
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60
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61 public SpecializationGroup(List<SpecializationGroup> children, List<String> assumptionMatches, List<TypeGuard> typeGuardsMatches, List<GuardExpression> guardMatches) {
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62 assert !children.isEmpty() : "children must not be empty";
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63 this.assumptions = assumptionMatches;
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64 this.typeGuards = typeGuardsMatches;
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65 this.guards = guardMatches;
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66 this.node = children.get(0).node;
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67 this.specialization = null;
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68 updateChildren(children);
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69 }
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70
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71 public List<TypeGuard> getAllGuards() {
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72 List<TypeGuard> collectedGuards = new ArrayList<>();
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73 collectedGuards.addAll(typeGuards);
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74 if (parent != null) {
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75 collectedGuards.addAll(parent.getAllGuards());
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76 }
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77 return collectedGuards;
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78 }
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79
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80 public List<GuardExpression> findElseConnectableGuards() {
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81 if (!getTypeGuards().isEmpty() || !getAssumptions().isEmpty()) {
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82 return Collections.emptyList();
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83 }
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84
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85 if (getGuards().isEmpty()) {
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86 return Collections.emptyList();
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87 }
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88
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89 List<GuardExpression> elseConnectableGuards = new ArrayList<>();
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90 int guardIndex = 0;
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91 while (guardIndex < getGuards().size() && findNegatedGuardInPrevious(getGuards().get(guardIndex)) != null) {
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92 elseConnectableGuards.add(getGuards().get(guardIndex));
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93 guardIndex++;
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94 }
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95
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96 return elseConnectableGuards;
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97 }
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98
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99 private GuardExpression findNegatedGuardInPrevious(GuardExpression guard) {
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100 SpecializationGroup previous = this.getPreviousGroup();
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101 if (previous == null) {
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102 return null;
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103 }
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104 List<GuardExpression> elseConnectedGuards = previous.findElseConnectableGuards();
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105
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106 if (previous == null || previous.getGuards().size() != elseConnectedGuards.size() + 1) {
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107 return null;
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108 }
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109
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110 /* Guard is else branch can be connected in previous specialization. */
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111 if (elseConnectedGuards.contains(guard)) {
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112 return guard;
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113 }
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114
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115 GuardExpression previousGuard = previous.getGuards().get(elseConnectedGuards.size());
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116 if (guard.equalsNegated(previousGuard)) {
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117 return guard;
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118 }
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119 return null;
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120 }
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121
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122 private void updateChildren(List<SpecializationGroup> childs) {
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123 if (!children.isEmpty()) {
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124 children.clear();
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125 }
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126 this.children.addAll(childs);
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127 for (SpecializationGroup child : childs) {
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128 child.parent = this;
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129 }
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130 }
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131
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132 public SpecializationGroup getParent() {
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133 return parent;
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134 }
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135
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136 public List<String> getAssumptions() {
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137 return assumptions;
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138 }
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139
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140 public List<TypeGuard> getTypeGuards() {
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141 return typeGuards;
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142 }
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143
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144 public List<GuardExpression> getGuards() {
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145 return guards;
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146 }
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147
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148 public List<SpecializationGroup> getChildren() {
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149 return children;
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150 }
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151
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152 public SpecializationData getSpecialization() {
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153 return specialization;
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154 }
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155
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156 private static SpecializationGroup combine(List<SpecializationGroup> groups) {
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157 if (groups.isEmpty()) {
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158 throw new IllegalArgumentException("empty combinations");
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159 }
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160 if (groups.size() == 1) {
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161 return null;
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162 }
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163
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164 List<String> assumptionMatches = new ArrayList<>();
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165 List<TypeGuard> typeGuardsMatches = new ArrayList<>();
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166 List<GuardExpression> guardMatches = new ArrayList<>();
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167
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168 SpecializationGroup first = groups.get(0);
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169 List<SpecializationGroup> others = groups.subList(1, groups.size());
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170
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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171 outer: for (String assumption : first.assumptions) {
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172 for (SpecializationGroup other : others) {
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173 if (!other.assumptions.contains(assumption)) {
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174 // assumptions can be combined unordered
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175 continue outer;
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176 }
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177 }
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178 assumptionMatches.add(assumption);
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179 }
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180
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181 outer: for (TypeGuard typeGuard : first.typeGuards) {
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182 for (SpecializationGroup other : others) {
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183 if (!other.typeGuards.contains(typeGuard)) {
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184 // type guards can be combined unordered
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185 continue outer;
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186 }
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187 }
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188 typeGuardsMatches.add(typeGuard);
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189 }
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190
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191 outer: for (GuardExpression guard : first.guards) {
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192 for (SpecializationGroup other : others) {
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193 if (!other.guards.contains(guard)) {
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194 // we must break here. One guard may depend on the other.
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195 break outer;
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parents:
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196 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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197 }
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198 guardMatches.add(guard);
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199 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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200
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201 // check for guards for required type casts
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202 for (Iterator<GuardExpression> iterator = guardMatches.iterator(); iterator.hasNext();) {
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diff changeset
203 GuardExpression guardMatch = iterator.next();
19283
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
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parents: 19282
diff changeset
204 if (!guardMatch.getExpression().findBoundVariables().isEmpty()) {
11442
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diff changeset
205 iterator.remove();
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parents: 11201
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206 }
19283
08aa0372dad4 Truffle-DSL: implement new guard expression syntax.
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parents: 19282
diff changeset
207 // TODO we need to be smarter here with bound parameters.
11442
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diff changeset
208 }
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209
11195
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210 if (assumptionMatches.isEmpty() && typeGuardsMatches.isEmpty() && guardMatches.isEmpty()) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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diff changeset
211 return null;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
212 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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diff changeset
213
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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diff changeset
214 for (SpecializationGroup group : groups) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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diff changeset
215 group.assumptions.removeAll(assumptionMatches);
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diff changeset
216 group.typeGuards.removeAll(typeGuardsMatches);
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diff changeset
217 group.guards.removeAll(guardMatches);
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parents:
diff changeset
218 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
219
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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diff changeset
220 List<SpecializationGroup> newChildren = new ArrayList<>(groups);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
221 return new SpecializationGroup(newChildren, assumptionMatches, typeGuardsMatches, guardMatches);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
222 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
223
11443
b33783cbd8ce Truffle-DSL: refactored redundant guard generation code.
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parents: 11442
diff changeset
224 public static SpecializationGroup create(SpecializationData specialization) {
b33783cbd8ce Truffle-DSL: refactored redundant guard generation code.
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diff changeset
225 return new SpecializationGroup(specialization);
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parents: 11442
diff changeset
226 }
b33783cbd8ce Truffle-DSL: refactored redundant guard generation code.
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diff changeset
227
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diff changeset
228 public static SpecializationGroup create(List<SpecializationData> specializations) {
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229 List<SpecializationGroup> groups = new ArrayList<>();
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diff changeset
230 for (SpecializationData specialization : specializations) {
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diff changeset
231 groups.add(new SpecializationGroup(specialization));
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diff changeset
232 }
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233 return new SpecializationGroup(createCombinationalGroups(groups), Collections.<String> emptyList(), Collections.<TypeGuard> emptyList(), Collections.<GuardExpression> emptyList());
11195
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234 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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diff changeset
235
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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diff changeset
236 @Override
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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237 public String toString() {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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diff changeset
238 return "SpecializationGroup [assumptions=" + assumptions + ", typeGuards=" + typeGuards + ", guards=" + guards + "]";
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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diff changeset
239 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
240
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
241 private static List<SpecializationGroup> createCombinationalGroups(List<SpecializationGroup> groups) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
242 if (groups.size() <= 1) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
243 return groups;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
244 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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diff changeset
245 List<SpecializationGroup> newGroups = new ArrayList<>();
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
246
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
247 int i = 0;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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diff changeset
248 for (i = 0; i < groups.size();) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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diff changeset
249 SpecializationGroup combined = null;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
250 for (int j = groups.size(); j > i + 1; j--) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
251 combined = combine(groups.subList(i, j));
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
252 if (combined != null) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
253 break;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
254 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
255 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
256 SpecializationGroup newGroup;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
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parents:
diff changeset
257 if (combined == null) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
258 newGroup = groups.get(i);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
259 i++;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
260 } else {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
261 newGroup = combined;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
262 List<SpecializationGroup> originalGroups = new ArrayList<>(combined.children);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
263 combined.updateChildren(createCombinationalGroups(originalGroups));
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
264 i += originalGroups.size();
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
265 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
266
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
267 newGroups.add(newGroup);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
268
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
269 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
270
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
271 return newGroups;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
272 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
273
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
274 public SpecializationGroup getPreviousGroup() {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
275 if (parent == null || parent.children.isEmpty()) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
276 return null;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
277 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
278 int index = parent.children.indexOf(this);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
279 if (index <= 0) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
280 return null;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
281 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
282 return parent.children.get(index - 1);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
283 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
284
12401
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
285 public int getUncheckedSpecializationIndex() {
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
286 int groupMaxIndex = getMaxSpecializationIndex();
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
287
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
288 int genericIndex = node.getSpecializations().indexOf(node.getGenericSpecialization());
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
289 if (groupMaxIndex >= genericIndex) {
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
290 // no minimum state check for an generic index
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
291 groupMaxIndex = -1;
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
292 }
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
293
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
294 if (groupMaxIndex > -1) {
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
295 // no minimum state check if already checked by parent group
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
296 int parentMaxIndex = -1;
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
297 if (getParent() != null) {
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
298 parentMaxIndex = getParent().getMaxSpecializationIndex();
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
299 }
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
300 if (groupMaxIndex == parentMaxIndex) {
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
301 groupMaxIndex = -1;
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
302 }
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
303 }
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
304 return groupMaxIndex;
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
305 }
85dcc7f59c34 Truffle-DSL: fixed incorrect else guard connections for executeAndSpecialize.
Christian Humer <christian.humer@gmail.com>
parents: 11507
diff changeset
306
11195
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
307 public int getMaxSpecializationIndex() {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
308 if (specialization != null) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
309 return specialization.getNode().getSpecializations().indexOf(specialization);
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
310 } else {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
311 int max = Integer.MIN_VALUE;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
312 for (SpecializationGroup childGroup : getChildren()) {
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
313 max = Math.max(max, childGroup.getMaxSpecializationIndex());
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
314 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
315 return max;
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
316 }
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
317 }
11201
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
318
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
319 public static final class TypeGuard {
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
320
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
321 private final int signatureIndex;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
322 private final TypeData type;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
323
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
324 public TypeGuard(TypeData type, int signatureIndex) {
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
325 this.type = type;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
326 this.signatureIndex = signatureIndex;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
327 }
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
328
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
329 @Override
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
330 public int hashCode() {
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
331 final int prime = 31;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
332 int result = 1;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
333 result = prime * result + signatureIndex;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
334 result = prime * result + type.hashCode();
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
335 return result;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
336 }
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
337
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
338 @Override
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
339 public boolean equals(Object obj) {
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
340 if (this == obj) {
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
341 return true;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
342 } else if (obj == null) {
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
343 return false;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
344 } else if (getClass() != obj.getClass()) {
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
345 return false;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
346 }
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
347
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
348 TypeGuard other = (TypeGuard) obj;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
349 if (signatureIndex != other.signatureIndex) {
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
350 return false;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
351 } else if (!type.equals(other.type)) {
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
352 return false;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
353 }
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
354 return true;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
355 }
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
356
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
357 public int getSignatureIndex() {
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
358 return signatureIndex;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
359 }
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
360
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
361 public TypeData getType() {
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
362 return type;
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
363 }
7fc3e1fb3965 Truffle-DSL: specialization group fixes.
Christian Humer <christian.humer@gmail.com>
parents: 11195
diff changeset
364 }
16755
bd28da642eea Truffle-DSL: Several new features implemented:
Christian Humer <christian.humer@gmail.com>
parents: 13527
diff changeset
365
19289
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
366 public SpecializationGroup getPrevious() {
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
367 if (getParent() == null) {
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
368 return null;
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
369 }
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
370
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
371 List<SpecializationGroup> parentChildren = getParent().getChildren();
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
372 int index = parentChildren.indexOf(this);
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
373 if (index <= 0) {
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
374 return null;
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
375 }
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
376 return parentChildren.get(index - 1);
62c43fcf5be2 Truffle-DSL: implement @Cached and fixes for the new guard expression syntax.
Christian Humer <christian.humer@gmail.com>
parents: 19283
diff changeset
377 }
11195
4f52b08bd2f9 Truffle-DSL: Implemented specialization grouping for generic cases.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
378 }