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annotate graal/GraalCompiler/src/com/sun/c1x/value/FrameStateBuilder.java @ 2821:015be60afcf3

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removed flags from Value class
author Lukas Stadler <lukas.stadler@jku.at>
date Mon, 30 May 2011 17:05:06 +0200
parents 056e392d63d4
children bfce42cd9c07
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rev   line source
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1 /*
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2 * Copyright (c) 2011, 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.sun.c1x.value;
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24
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25 import static com.sun.c1x.value.ValueUtil.*;
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26 import static java.lang.reflect.Modifier.*;
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27
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28 import java.util.*;
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29
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30 import com.oracle.graal.graph.*;
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31 import com.sun.c1x.graph.*;
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32 import com.sun.c1x.ir.*;
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33 import com.sun.cri.ci.*;
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34 import com.sun.cri.ri.*;
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35
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36
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37 public class FrameStateBuilder implements FrameStateAccess {
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38
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39 private final Graph graph;
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40
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41 private final Value[] locals;
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42 private final Value[] stack;
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43 private final ArrayList<Value> locks;
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44
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45 private int stackIndex;
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46
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47 public FrameStateBuilder(RiMethod method, Graph graph) {
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48 this.graph = graph;
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49 this.locals = new Value[method.maxLocals()];
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50 this.stack = new Value[method.maxStackSize()];
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51
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52 int javaIndex = 0;
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53 int index = 0;
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54 if (!isStatic(method.accessFlags())) {
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55 // add the receiver and assume it is non null
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56 Local local = new Local(method.holder().kind(), javaIndex, graph);
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57 local.setNonNull(true);
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58 local.setDeclaredType(method.holder());
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59 storeLocal(javaIndex, local);
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60 javaIndex = 1;
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61 index = 1;
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62 }
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63 RiSignature sig = method.signature();
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64 int max = sig.argumentCount(false);
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65 RiType accessingClass = method.holder();
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66 for (int i = 0; i < max; i++) {
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67 RiType type = sig.argumentTypeAt(i, accessingClass);
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68 CiKind kind = type.kind().stackKind();
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69 Local local = new Local(kind, index, graph);
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70 if (type.isResolved()) {
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71 local.setDeclaredType(type);
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72 }
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73 storeLocal(javaIndex, local);
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74 javaIndex += kind.sizeInSlots();
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75 index++;
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76 }
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77 this.locks = new ArrayList<Value>();
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78 }
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79
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80 public void initializeFrom(FrameState other) {
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81 assert locals.length == other.localsSize();
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82 assert stack.length >= other.stackSize();
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83
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84 this.stackIndex = other.stackSize();
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85 for (int i = 0; i < other.localsSize(); i++) {
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86 locals[i] = other.localAt(i);
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87 }
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88 for (int i = 0; i < other.stackSize(); i++) {
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89 stack[i] = other.stackAt(i);
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90 }
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91 locks.clear();
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92 for (int i = 0; i < other.locksSize(); i++) {
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93 locks.add(other.lockAt(i));
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94 }
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95 }
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96
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97 public FrameState create(int bci) {
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98 return new FrameState(bci, locals, stack, stackIndex, locks, graph);
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99 }
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100
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101 @Override
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102 public FrameState duplicateWithEmptyStack(int bci) {
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103 return new FrameState(bci, locals, new Value[0], 0, locks, graph);
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104 }
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105
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106 /**
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107 * Pushes an instruction onto the stack with the expected type.
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108 * @param kind the type expected for this instruction
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109 * @param x the instruction to push onto the stack
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110 */
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111 public void push(CiKind kind, Value x) {
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112 assert kind != CiKind.Void;
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113 xpush(assertKind(kind, x));
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114 if (kind.sizeInSlots() == 2) {
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115 xpush(null);
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116 }
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117 }
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118
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119 /**
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120 * Pushes a value onto the stack without checking the type.
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121 * @param x the instruction to push onto the stack
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122 */
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123 public void xpush(Value x) {
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124 assert x == null || !x.isDeleted();
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125 stack[stackIndex++] = x;
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126 }
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127
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128 /**
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129 * Pushes a value onto the stack and checks that it is an int.
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130 * @param x the instruction to push onto the stack
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131 */
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132 public void ipush(Value x) {
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133 xpush(assertInt(x));
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134 }
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135
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136 /**
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137 * Pushes a value onto the stack and checks that it is a float.
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138 * @param x the instruction to push onto the stack
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139 */
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140 public void fpush(Value x) {
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141 xpush(assertFloat(x));
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142 }
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143
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144 /**
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145 * Pushes a value onto the stack and checks that it is an object.
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146 * @param x the instruction to push onto the stack
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147 */
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148 public void apush(Value x) {
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149 xpush(assertObject(x));
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150 }
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151
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152 /**
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153 * Pushes a value onto the stack and checks that it is a word.
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154 * @param x the instruction to push onto the stack
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155 */
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156 public void wpush(Value x) {
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157 xpush(assertWord(x));
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158 }
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159
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160 /**
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161 * Pushes a value onto the stack and checks that it is a JSR return address.
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162 * @param x the instruction to push onto the stack
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163 */
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164 public void jpush(Value x) {
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165 xpush(assertJsr(x));
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166 }
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167
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168 /**
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169 * Pushes a value onto the stack and checks that it is a long.
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170 *
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171 * @param x the instruction to push onto the stack
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172 */
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173 public void lpush(Value x) {
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174 xpush(assertLong(x));
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175 xpush(null);
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176 }
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177
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178 /**
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179 * Pushes a value onto the stack and checks that it is a double.
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180 * @param x the instruction to push onto the stack
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181 */
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182 public void dpush(Value x) {
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183 xpush(assertDouble(x));
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184 xpush(null);
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185 }
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186
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187 public void pushReturn(CiKind kind, Value x) {
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188 if (kind != CiKind.Void) {
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189 push(kind.stackKind(), x);
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190 }
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191 }
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192
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193 /**
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194 * Pops an instruction off the stack with the expected type.
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195 * @param kind the expected type
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196 * @return the instruction on the top of the stack
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197 */
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198 public Value pop(CiKind kind) {
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199 assert kind != CiKind.Void;
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200 if (kind.sizeInSlots() == 2) {
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201 xpop();
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202 }
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203 return assertKind(kind, xpop());
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204 }
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205
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206 /**
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diff changeset
207 * Pops a value off of the stack without checking the type.
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208 * @return x the instruction popped off the stack
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209 */
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210 public Value xpop() {
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211 Value result = stack[--stackIndex];
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212 assert result == null || !result.isDeleted();
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213 return result;
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214 }
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215
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216 /**
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217 * Pops a value off of the stack and checks that it is an int.
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218 * @return x the instruction popped off the stack
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219 */
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220 public Value ipop() {
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221 return assertInt(xpop());
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222 }
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223
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224 /**
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225 * Pops a value off of the stack and checks that it is a float.
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226 * @return x the instruction popped off the stack
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227 */
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228 public Value fpop() {
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229 return assertFloat(xpop());
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230 }
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parents:
diff changeset
231
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Lukas Stadler <lukas.stadler@jku.at>
parents:
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232 /**
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233 * Pops a value off of the stack and checks that it is an object.
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234 * @return x the instruction popped off the stack
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235 */
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236 public Value apop() {
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237 return assertObject(xpop());
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diff changeset
238 }
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239
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
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240 /**
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241 * Pops a value off of the stack and checks that it is a word.
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242 * @return x the instruction popped off the stack
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243 */
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244 public Value wpop() {
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245 return assertWord(xpop());
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246 }
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parents:
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247
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parents:
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248 /**
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diff changeset
249 * Pops a value off of the stack and checks that it is a JSR return address.
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250 * @return x the instruction popped off the stack
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251 */
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252 public Value jpop() {
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253 return assertJsr(xpop());
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254 }
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parents:
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255
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
256 /**
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diff changeset
257 * Pops a value off of the stack and checks that it is a long.
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258 * @return x the instruction popped off the stack
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259 */
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260 public Value lpop() {
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261 assertHigh(xpop());
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262 return assertLong(xpop());
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263 }
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parents:
diff changeset
264
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
265 /**
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parents:
diff changeset
266 * Pops a value off of the stack and checks that it is a double.
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267 * @return x the instruction popped off the stack
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268 */
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269 public Value dpop() {
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270 assertHigh(xpop());
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271 return assertDouble(xpop());
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272 }
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273
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Lukas Stadler <lukas.stadler@jku.at>
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274 /**
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275 * Pop the specified number of slots off of this stack and return them as an array of instructions.
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276 * @param size the number of arguments off of the stack
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277 * @return an array containing the arguments off of the stack
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278 */
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279 public Value[] popArguments(int size) {
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280 int base = stackIndex - size;
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281 Value[] r = new Value[size];
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282 for (int i = 0; i < size; ++i) {
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283 assert stack[base + i] != null || stack[base + i - 1].kind.jvmSlots == 2;
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284 r[i] = stack[base + i];
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285 }
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286 stackIndex = base;
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287 return r;
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288 }
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289
2616
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290 public CiKind peekKind() {
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291 Value top = stackAt(stackSize() - 1);
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292 if (top == null) {
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293 top = stackAt(stackSize() - 2);
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294 assert top != null;
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diff changeset
295 assert top.kind.isDoubleWord();
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diff changeset
296 }
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297 return top.kind;
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298 }
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299
2611
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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300 /**
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301 * Truncates this stack to the specified size.
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302 * @param size the size to truncate to
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303 */
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304 public void truncateStack(int size) {
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parents:
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305 stackIndex = size;
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parents:
diff changeset
306 assert stackIndex >= 0;
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diff changeset
307 }
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parents:
diff changeset
308
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
309 /**
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diff changeset
310 * Clears all values on this stack.
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
diff changeset
311 */
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parents:
diff changeset
312 public void clearStack() {
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parents:
diff changeset
313 stackIndex = 0;
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diff changeset
314 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
315
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
316 /**
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Lukas Stadler <lukas.stadler@jku.at>
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diff changeset
317 * Loads the local variable at the specified index.
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parents:
diff changeset
318 *
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parents:
diff changeset
319 * @param i the index of the local variable to load
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parents:
diff changeset
320 * @return the instruction that produced the specified local
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parents:
diff changeset
321 */
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parents:
diff changeset
322 public Value loadLocal(int i) {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
diff changeset
323 Value x = locals[i];
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
diff changeset
324 if (x != null) {
2821
015be60afcf3 removed flags from Value class
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parents: 2771
diff changeset
325 if (x instanceof Phi && ((Phi) x).isDead()) {
2611
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
diff changeset
326 return null;
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diff changeset
327 }
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diff changeset
328 assert x.kind.isSingleWord() || locals[i + 1] == null || locals[i + 1] instanceof Phi;
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
diff changeset
329 }
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parents:
diff changeset
330 return x;
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parents:
diff changeset
331 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
332
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
333 /**
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Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
334 * Stores a given local variable at the specified index. If the value is a {@linkplain CiKind#isDoubleWord() double word},
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
diff changeset
335 * then the next local variable index is also overwritten.
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parents:
diff changeset
336 *
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Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
337 * @param i the index at which to store
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parents:
diff changeset
338 * @param x the instruction which produces the value for the local
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
diff changeset
339 */
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Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
340 public void storeLocal(int i, Value x) {
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parents:
diff changeset
341 locals[i] = x;
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parents:
diff changeset
342 if (isDoubleWord(x)) {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
diff changeset
343 // (tw) if this was a double word then kill i+1
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
diff changeset
344 locals[i + 1] = null;
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
diff changeset
345 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
346 if (i > 0) {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
diff changeset
347 // if there was a double word at i - 1, then kill it
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
diff changeset
348 Value p = locals[i - 1];
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
diff changeset
349 if (isDoubleWord(p)) {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
diff changeset
350 locals[i - 1] = null;
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parents:
diff changeset
351 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
352 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
353 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
354
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
355 /**
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
356 * Locks a new object within the specified IRScope.
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
357 * @param scope the IRScope in which this locking operation occurs
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
diff changeset
358 * @param obj the object being locked
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
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parents:
diff changeset
359 */
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
360 public void lock(IR ir, Value obj, int totalNumberOfLocks) {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
361 locks.add(obj);
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
362 ir.updateMaxLocks(totalNumberOfLocks);
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
363 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
364
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
365 /**
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
366 * Unlock the lock on the top of the stack.
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
367 */
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
368 public void unlock() {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
369 locks.remove(locks.size() - 1);
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
370 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
371
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
372 /**
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
373 * Get the value on the stack at the specified stack index.
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
374 *
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
375 * @param i the index into the stack, with {@code 0} being the bottom of the stack
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
376 * @return the instruction at the specified position in the stack
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
377 */
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
378 public final Value stackAt(int i) {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
379 return stack[i];
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
380 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
381
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
382 /**
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
383 * Gets the value in the local variables at the specified index.
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
384 *
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
385 * @param i the index into the locals
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
386 * @return the instruction that produced the value for the specified local
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
387 */
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
388 public final Value localAt(int i) {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
389 return locals[i];
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
390 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
391
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
392 /**
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
393 * Retrieves the lock at the specified index in the lock stack.
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
394 * @param i the index into the lock stack
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
395 * @return the instruction which produced the object at the specified location in the lock stack
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
396 */
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
397 public final Value lockAt(int i) {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
398 return locks.get(i);
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
399 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
400
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
401 /**
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
402 * Returns the size of the local variables.
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
403 *
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
404 * @return the size of the local variables
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
405 */
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
406 public int localsSize() {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
407 return locals.length;
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
408 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
409
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
410 /**
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
411 * Gets number of locks held by this frame state.
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
412 */
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
413 public int locksSize() {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
414 return locks.size();
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
415 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
416
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
417 /**
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
418 * Gets the current size (height) of the stack.
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
419 */
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
420 public int stackSize() {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
421 return stackIndex;
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
422 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
423
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
424 public Iterator<Value> locals() {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
425 return new ValueArrayIterator(locals);
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
426 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
427
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
428 public Iterator<Value> stack() {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
429 return new ValueArrayIterator(locals);
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
430 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
431
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
432 public List<Value> locks() {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
433 return Collections.unmodifiableList(locks);
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
434 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
435
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
436
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
437 private static class ValueArrayIterator implements Iterator<Value> {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
438 private final Value[] array;
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
439 private int index;
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
440 private int length;
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
441
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
442 public ValueArrayIterator(Value[] array, int length) {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
443 assert length <= array.length;
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
444 this.array = array;
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
445 this.index = 0;
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
446 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
447
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
448 public ValueArrayIterator(Value[] array) {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
449 this(array, array.length);
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
450 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
451
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
452 @Override
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
453 public boolean hasNext() {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
454 return index < array.length;
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
455 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
456
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
457 @Override
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
458 public Value next() {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
459 return array[index++];
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
460 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
461
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
462 @Override
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
463 public void remove() {
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
464 throw new UnsupportedOperationException("cannot remove from array");
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
465 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
466
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
467 }
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
468
2616
3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
469
3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
470 @Override
2636
8c02ca1e9eb1 Fixed bci for stateBefore in BlockBegin
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2616
diff changeset
471 public FrameState duplicate(int bci) {
8c02ca1e9eb1 Fixed bci for stateBefore in BlockBegin
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2616
diff changeset
472 return create(bci);
2616
3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
473 }
3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
474
3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
475 @Override
3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
476 public Value valueAt(int i) {
3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
477 if (i < locals.length) {
3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
478 return locals[i];
3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
479 } else if (i < locals.length + stackIndex) {
3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
480 return stack[i - locals.length];
3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
481 } else {
3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
482 return locks.get(i - locals.length - stack.length);
3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
483 }
3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
484 }
3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
485
2763
5e8a69041cd7 Model phi inputs as direct inputs in the graph instead of referring to the framestates of the predecessors.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2731
diff changeset
486 @Override
5e8a69041cd7 Model phi inputs as direct inputs in the graph instead of referring to the framestates of the predecessors.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2731
diff changeset
487 public void setValueAt(int i, Value v) {
5e8a69041cd7 Model phi inputs as direct inputs in the graph instead of referring to the framestates of the predecessors.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2731
diff changeset
488 if (i < locals.length) {
5e8a69041cd7 Model phi inputs as direct inputs in the graph instead of referring to the framestates of the predecessors.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2731
diff changeset
489 locals[i] = v;
5e8a69041cd7 Model phi inputs as direct inputs in the graph instead of referring to the framestates of the predecessors.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2731
diff changeset
490 } else if (i < locals.length + stackIndex) {
5e8a69041cd7 Model phi inputs as direct inputs in the graph instead of referring to the framestates of the predecessors.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2731
diff changeset
491 stack[i - locals.length] = v;
5e8a69041cd7 Model phi inputs as direct inputs in the graph instead of referring to the framestates of the predecessors.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2731
diff changeset
492 } else {
5e8a69041cd7 Model phi inputs as direct inputs in the graph instead of referring to the framestates of the predecessors.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2731
diff changeset
493 locks.set(i - locals.length - stack.length, v);
5e8a69041cd7 Model phi inputs as direct inputs in the graph instead of referring to the framestates of the predecessors.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2731
diff changeset
494 }
5e8a69041cd7 Model phi inputs as direct inputs in the graph instead of referring to the framestates of the predecessors.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2731
diff changeset
495 }
5e8a69041cd7 Model phi inputs as direct inputs in the graph instead of referring to the framestates of the predecessors.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2731
diff changeset
496
2611
bd235cb4375a FrameState cleanup: split into FrameStateBuilder and fixed-size FrameState, removed MutableFrameState
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
497 }