Mercurial > hg > graal-jvmci-8
annotate graal/GraalCompiler/src/com/sun/c1x/ir/BlockBegin.java @ 2706:5a784215351a
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author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 18 May 2011 17:35:14 +0200 |
parents | d669ab61c7c7 |
children | 4272b7af2d17 |
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1 /* |
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2 * Copyright (c) 2009, 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.ir; |
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24 |
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25 import java.util.*; |
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26 |
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27 import com.oracle.graal.graph.*; |
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28 import com.oracle.max.asm.*; |
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29 import com.sun.c1x.*; |
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30 import com.sun.c1x.debug.*; |
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31 import com.sun.c1x.lir.*; |
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32 import com.sun.c1x.util.*; |
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33 import com.sun.c1x.value.*; |
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34 import com.sun.cri.ci.*; |
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35 import com.sun.cri.ri.*; |
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36 |
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37 /** |
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38 * Denotes the beginning of a basic block, and holds information |
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39 * about the basic block, including the successor and |
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40 * predecessor blocks, exception handlers, liveness information, etc. |
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41 */ |
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42 public final class BlockBegin extends StateSplit { |
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43 |
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44 private static final int INPUT_COUNT = 1; |
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45 private static final int INPUT_STATE_BEFORE = 0; |
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46 |
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47 private static final int SUCCESSOR_COUNT = 1; |
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48 private static final int SUCCESSOR_END = 0; |
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49 |
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50 @Override |
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51 protected int inputCount() { |
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52 return super.inputCount() + INPUT_COUNT; |
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53 } |
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54 |
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55 @Override |
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56 protected int successorCount() { |
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57 return super.successorCount() + SUCCESSOR_COUNT; |
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58 } |
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59 |
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60 /** |
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61 * The last node in the block (which contains the successors). |
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62 */ |
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63 public BlockEnd end() { |
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64 return (BlockEnd) successors().get(super.successorCount() + SUCCESSOR_END); |
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65 } |
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66 |
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67 @Override |
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68 public boolean needsStateAfter() { |
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69 return false; |
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70 } |
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71 |
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72 public void setEnd(BlockEnd end) { |
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73 assert end != null; |
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74 BlockEnd old = this.end(); |
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75 if (old != end) { |
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76 if (old != null) { |
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77 // disconnect this block from its current successors |
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78 for (BlockBegin s : old.blockSuccessors()) { |
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79 s.blockPredecessors().remove(this.end()); |
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80 } |
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81 } |
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82 successors().set(super.successorCount() + SUCCESSOR_END, end); |
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83 for (BlockBegin s : end.blockSuccessors()) { |
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84 s.addPredecessor(end); |
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85 } |
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86 } |
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87 } |
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88 |
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89 private static final List<BlockBegin> NO_HANDLERS = Collections.emptyList(); |
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90 |
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91 /** |
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92 * An enumeration of flags for block entries indicating various things. |
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93 */ |
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94 public enum BlockFlag { |
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95 StandardEntry, |
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96 ExceptionEntry, |
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97 BackwardBranchTarget, |
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98 ParserLoopHeader, |
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99 LinearScanLoopHeader, |
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100 LinearScanLoopEnd; |
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101 |
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102 public final int mask = 1 << ordinal(); |
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103 } |
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104 |
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105 /** |
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106 * A unique id used in tracing. |
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107 */ |
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108 public final int blockID; |
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109 |
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110 /** |
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111 * Denotes the current set of {@link BlockBegin.BlockFlag} settings. |
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112 */ |
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113 private int blockFlags; |
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114 |
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115 /** |
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116 * The {@link BlockBegin} nodes for which this node is a successor. |
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117 */ |
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118 private final List<BlockEnd> predecessors; |
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119 |
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120 private int depthFirstNumber; |
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121 private int linearScanNumber; |
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122 |
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123 private BlockBegin dominator; |
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124 private List<BlockBegin> exceptionHandlerBlocks; |
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125 private List<FrameState> exceptionHandlerStates; |
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126 |
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127 // LIR block |
2700 | 128 public final LIRBlock lirBlock = new LIRBlock(); |
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129 |
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130 /** |
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131 * Constructs a new BlockBegin at the specified bytecode index. |
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132 * @param bci the bytecode index of the start |
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133 * @param blockID the ID of the block |
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134 * @param graph |
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135 */ |
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136 public BlockBegin(int bci, int blockID, Graph graph) { |
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137 super(CiKind.Illegal, INPUT_COUNT, SUCCESSOR_COUNT, graph); |
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138 this.blockID = blockID; |
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139 depthFirstNumber = -1; |
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140 linearScanNumber = -1; |
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141 predecessors = new ArrayList<BlockEnd>(2); |
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142 setBCI(bci); |
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143 } |
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144 |
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145 /** |
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146 * Gets the list of predecessors of this block. |
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147 * @return the predecessor list |
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148 */ |
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149 public List<BlockEnd> blockPredecessors() { |
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150 // return Collections.unmodifiableList(predecessors); |
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151 return predecessors; |
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152 } |
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153 |
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154 /** |
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155 * Sets the dominator block for this block. |
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156 * @param dominator the dominator for this block |
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157 */ |
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158 public void setDominator(BlockBegin dominator) { |
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159 this.dominator = dominator; |
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160 } |
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161 |
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162 /** |
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163 * Gets the depth first traversal number of this block. |
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164 * @return the depth first number |
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165 */ |
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166 public int depthFirstNumber() { |
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167 return depthFirstNumber; |
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168 } |
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169 |
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170 /** |
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171 * Gets the linear scan number of this block. |
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172 * @return the linear scan number |
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173 */ |
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174 public int linearScanNumber() { |
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175 return linearScanNumber; |
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176 } |
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177 |
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178 /** |
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179 * Gets the loop depth of this block. |
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180 * @return the loop depth |
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181 */ |
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182 public int loopDepth() { |
2700 | 183 return lirBlock.loopDepth; |
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184 } |
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185 |
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186 /** |
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187 * Gets the loop index of this block. |
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188 * @return the loop index |
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189 */ |
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190 public int loopIndex() { |
2700 | 191 return lirBlock.loopIndex; |
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192 } |
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193 |
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194 /** |
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195 * Gets the exception handlers that cover one or more instructions of this basic block. |
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196 * |
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197 * @return the exception handlers |
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198 */ |
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199 public List<BlockBegin> exceptionHandlerBlocks() { |
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200 return exceptionHandlerBlocks == null ? NO_HANDLERS : exceptionHandlerBlocks; |
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201 } |
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202 |
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203 public List<FrameState> exceptionHandlerStates() { |
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204 return exceptionHandlerStates; |
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205 } |
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206 |
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207 public void setDepthFirstNumber(int depthFirstNumber) { |
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208 assert depthFirstNumber >= 0; |
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209 this.depthFirstNumber = depthFirstNumber; |
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210 } |
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211 |
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212 public void setLinearScanNumber(int linearScanNumber) { |
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213 this.linearScanNumber = linearScanNumber; |
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214 } |
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215 |
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216 public void setLoopDepth(int loopDepth) { |
2700 | 217 this.lirBlock.loopDepth = loopDepth; |
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218 } |
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219 |
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220 public void setLoopIndex(int loopIndex) { |
2700 | 221 this.lirBlock.loopIndex = loopIndex; |
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222 } |
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223 |
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224 /** |
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225 * Set a flag on this block. |
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226 * @param flag the flag to set |
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227 */ |
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228 public void setBlockFlag(BlockFlag flag) { |
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229 blockFlags |= flag.mask; |
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230 } |
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231 |
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232 /** |
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233 * Clear a flag on this block. |
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234 * @param flag the flag to clear |
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235 */ |
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236 public void clearBlockFlag(BlockFlag flag) { |
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237 blockFlags &= ~flag.mask; |
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238 } |
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239 |
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240 public void copyBlockFlag(BlockBegin other, BlockFlag flag) { |
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241 setBlockFlag(flag, other.checkBlockFlag(flag)); |
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242 } |
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243 |
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244 /** |
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245 * Check whether this block has the specified flag set. |
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246 * @param flag the flag to test |
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247 * @return {@code true} if this block has the flag |
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248 */ |
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249 public boolean checkBlockFlag(BlockFlag flag) { |
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250 return (blockFlags & flag.mask) != 0; |
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251 } |
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252 |
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253 /** |
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254 * Iterate over this block, its exception handlers, and its successors, in that order. |
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255 * @param closure the closure to apply to each block |
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256 */ |
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257 public void iteratePreOrder(BlockClosure closure) { |
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258 // XXX: identity hash map might be too slow, consider a boolean array or a mark field |
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259 iterate(new IdentityHashMap<BlockBegin, BlockBegin>(), closure); |
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260 } |
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261 |
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262 /** |
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263 * Iterate over all blocks transitively reachable from this block. |
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264 * @param closure the closure to apply to each block |
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265 * @param predecessors {@code true} if also to include this blocks predecessors |
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266 */ |
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267 public void iterateAnyOrder(BlockClosure closure, boolean predecessors) { |
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268 IdentityHashMap<BlockBegin, BlockBegin> mark = new IdentityHashMap<BlockBegin, BlockBegin>(); |
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269 LinkedList<BlockBegin> queue = new LinkedList<BlockBegin>(); |
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270 queue.offer(this); |
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271 mark.put(this, this); |
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272 BlockBegin block; |
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273 while ((block = queue.poll()) != null) { |
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274 closure.apply(block); |
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275 queueBlocks(queue, block.exceptionHandlerBlocks(), mark); |
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276 queueBlocks(queue, block.end().blockSuccessors(), mark); |
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277 if (predecessors) { |
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278 queueBlockEnds(queue, block.predecessors, mark); |
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279 } |
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280 } |
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281 } |
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282 |
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283 private void queueBlocks(LinkedList<BlockBegin> queue, List<BlockBegin> list, IdentityHashMap<BlockBegin, BlockBegin> mark) { |
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284 if (list != null) { |
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285 for (BlockBegin b : list) { |
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286 if (!mark.containsKey(b)) { |
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287 queue.offer(b); |
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288 mark.put(b, b); |
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289 } |
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290 } |
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291 } |
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292 } |
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293 |
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294 private void queueBlockEnds(LinkedList<BlockBegin> queue, List<BlockEnd> list, IdentityHashMap<BlockBegin, BlockBegin> mark) { |
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295 if (list != null) { |
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296 for (BlockEnd end : list) { |
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297 BlockBegin b = end.begin(); |
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298 if (!mark.containsKey(b)) { |
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299 queue.offer(b); |
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300 mark.put(b, b); |
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301 } |
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302 } |
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303 } |
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304 } |
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305 |
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306 private void iterate(IdentityHashMap<BlockBegin, BlockBegin> mark, BlockClosure closure) { |
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307 if (!mark.containsKey(this)) { |
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308 mark.put(this, this); |
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309 closure.apply(this); |
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310 BlockEnd e = end(); |
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311 if (exceptionHandlerBlocks != null) { |
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312 iterateReverse(mark, closure, exceptionHandlerBlocks); |
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313 } |
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314 assert e != null : "block must have block end"; |
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315 iterateReverse(mark, closure, e.blockSuccessors()); |
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316 } |
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317 } |
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318 |
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319 private void iterateReverse(IdentityHashMap<BlockBegin, BlockBegin> mark, BlockClosure closure, List<BlockBegin> list) { |
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320 for (int i = list.size() - 1; i >= 0; i--) { |
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321 list.get(i).iterate(mark, closure); |
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322 } |
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323 } |
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324 |
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325 /** |
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326 * Adds an exception handler that covers one or more instructions in this block. |
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327 * |
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328 * @param handler the entry block for the exception handler to add |
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329 */ |
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330 public void addExceptionHandler(BlockBegin handler) { |
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331 assert handler != null && handler.checkBlockFlag(BlockBegin.BlockFlag.ExceptionEntry); |
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332 if (exceptionHandlerBlocks == null) { |
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333 exceptionHandlerBlocks = new ArrayList<BlockBegin>(3); |
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334 exceptionHandlerBlocks.add(handler); |
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335 } else if (!exceptionHandlerBlocks.contains(handler)) { |
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336 exceptionHandlerBlocks.add(handler); |
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337 } |
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338 } |
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339 |
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340 /** |
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341 * Adds a frame state that merges into the exception handler whose entry is this block. |
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342 * |
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343 * @param state the frame state at an instruction that raises an exception that can be caught by the exception |
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344 * handler represented by this block |
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345 * @return the index of {@code state} in the list of frame states merging at this block (i.e. the frames states for |
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346 * all instruction throwing an exception caught by this exception handler) |
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347 */ |
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348 public int addExceptionState(FrameState state) { |
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349 assert checkBlockFlag(BlockBegin.BlockFlag.ExceptionEntry); |
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350 if (exceptionHandlerStates == null) { |
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351 exceptionHandlerStates = new ArrayList<FrameState>(4); |
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352 } |
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353 exceptionHandlerStates.add(state); |
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354 return exceptionHandlerStates.size() - 1; |
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355 } |
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356 |
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357 /** |
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358 * Add a predecessor to this block. |
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359 * @param pred the predecessor to add |
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360 */ |
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361 public void addPredecessor(BlockEnd pred) { |
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362 assert pred != null; |
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363 predecessors.add(pred); |
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364 } |
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365 |
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366 /** |
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367 * Removes all occurrences of the specified block from the predecessor list of this block. |
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368 * @param pred the predecessor to remove |
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369 */ |
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370 public void removePredecessor(BlockEnd pred) { |
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371 while (predecessors.remove(pred)) { |
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372 // the block may appear multiple times in the list |
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373 // XXX: this is not very efficient, consider Util.removeAllFromList |
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374 } |
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375 } |
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376 |
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377 @Override |
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378 public void accept(ValueVisitor v) { |
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379 v.visitBlockBegin(this); |
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|
380 } |
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381 |
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382 public void mergeOrClone(FrameStateAccess newState, RiMethod method) { |
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383 FrameState existingState = stateBefore(); |
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384 |
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385 if (existingState == null) { |
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386 // copy state because it is modified |
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Fixed bci for stateBefore in BlockBegin
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387 FrameState duplicate = newState.duplicate(bci()); |
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388 assert duplicate.bci == bci() : "duplicate.bci=" + duplicate.bci + " my bci=" + bci(); |
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389 |
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390 if (C1XOptions.UseStackMapTableLiveness) { |
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391 // if a liveness map is available, use it to invalidate dead locals |
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Remove inlining (3rd part)
Gilles Duboscq <gilles.duboscq@oracle.com>
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2564
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|
392 CiBitMap[] livenessMap = method.livenessMap(); |
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393 if (livenessMap != null && bci() >= 0) { |
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394 assert bci() < livenessMap.length; |
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395 CiBitMap liveness = livenessMap[bci()]; |
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396 if (liveness != null) { |
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397 invalidateDeadLocals(duplicate, liveness); |
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398 } |
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399 } |
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400 } |
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401 |
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402 // if the block is a loop header, insert all necessary phis |
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403 if (isParserLoopHeader()) { |
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404 insertLoopPhis(duplicate); |
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405 } |
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406 |
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407 setStateBefore(duplicate); |
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408 } else { |
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added GraalGraph to classpath, Node as superclass of Value
Lukas Stadler <lukas.stadler@jku.at>
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2565
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409 if (!C1XOptions.AssumeVerifiedBytecode && !existingState.isCompatibleWith(newState)) { |
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410 // stacks or locks do not match--bytecodes would not verify |
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411 throw new CiBailout("stack or locks do not match"); |
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412 } |
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413 |
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414 assert existingState.localsSize() == newState.localsSize(); |
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415 assert existingState.stackSize() == newState.stackSize(); |
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416 |
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417 existingState.merge(this, newState); |
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418 } |
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419 } |
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420 |
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421 private void invalidateDeadLocals(FrameState newState, CiBitMap liveness) { |
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422 int max = newState.localsSize(); |
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423 assert max <= liveness.size(); |
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424 for (int i = 0; i < max; i++) { |
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425 Value x = newState.localAt(i); |
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426 if (x != null) { |
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427 if (!liveness.get(i)) { |
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428 // invalidate the local if it is not live |
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429 newState.invalidateLocal(i); |
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430 } |
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|
431 } |
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|
432 } |
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|
433 } |
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|
434 |
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435 private void insertLoopPhis(FrameState newState) { |
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436 int stackSize = newState.stackSize(); |
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437 for (int i = 0; i < stackSize; i++) { |
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438 // always insert phis for the stack |
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439 newState.setupPhiForStack(this, i); |
2507
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440 } |
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441 int localsSize = newState.localsSize(); |
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442 for (int i = 0; i < localsSize; i++) { |
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443 Value x = newState.localAt(i); |
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444 if (x != null) { |
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445 newState.setupPhiForLocal(this, i); |
2507
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446 } |
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|
447 } |
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Pull over of compiler from maxine repository.
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|
448 } |
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|
449 |
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450 public boolean isExceptionEntry() { |
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451 return checkBlockFlag(BlockFlag.ExceptionEntry); |
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Pull over of compiler from maxine repository.
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|
452 } |
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Pull over of compiler from maxine repository.
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|
453 |
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|
454 public void setExceptionEntry() { |
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|
455 setBlockFlag(BlockFlag.ExceptionEntry); |
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|
456 } |
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|
457 |
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|
458 public boolean isParserLoopHeader() { |
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|
459 return checkBlockFlag(BlockFlag.ParserLoopHeader); |
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diff
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|
460 } |
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Pull over of compiler from maxine repository.
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|
461 |
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462 public void setParserLoopHeader(boolean value) { |
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463 setBlockFlag(BlockFlag.ParserLoopHeader, value); |
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|
464 } |
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|
465 |
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|
466 public boolean isLinearScanLoopHeader() { |
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467 return checkBlockFlag(BlockFlag.LinearScanLoopHeader); |
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|
468 } |
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Pull over of compiler from maxine repository.
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|
469 |
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470 public boolean isLinearScanLoopEnd() { |
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471 return checkBlockFlag(BlockFlag.LinearScanLoopEnd); |
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|
472 } |
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|
473 |
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474 private void setBlockFlag(BlockFlag flag, boolean value) { |
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|
475 if (value) { |
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|
476 setBlockFlag(flag); |
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diff
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|
477 } else { |
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|
478 clearBlockFlag(flag); |
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Pull over of compiler from maxine repository.
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diff
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|
479 } |
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Pull over of compiler from maxine repository.
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diff
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|
480 } |
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Pull over of compiler from maxine repository.
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|
481 |
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|
482 @Override |
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|
483 public String toString() { |
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|
484 StringBuilder builder = new StringBuilder(); |
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diff
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|
485 builder.append("block #"); |
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diff
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|
486 builder.append(blockID); |
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Pull over of compiler from maxine repository.
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|
487 builder.append(","); |
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|
488 builder.append(depthFirstNumber); |
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|
489 builder.append(" @ "); |
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|
490 builder.append(bci()); |
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changeset
|
491 builder.append(" ["); |
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492 boolean hasFlag = false; |
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493 for (BlockFlag f : BlockFlag.values()) { |
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|
494 if (checkBlockFlag(f)) { |
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|
495 if (hasFlag) { |
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changeset
|
496 builder.append(' '); |
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|
497 } |
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|
498 builder.append(f.name()); |
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|
499 hasFlag = true; |
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parents:
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|
500 } |
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Pull over of compiler from maxine repository.
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parents:
diff
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|
501 } |
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Pull over of compiler from maxine repository.
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parents:
diff
changeset
|
502 |
9ec15d6914ca
Pull over of compiler from maxine repository.
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parents:
diff
changeset
|
503 builder.append("]"); |
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changed stateAfter FrameState to successor (instead of input), checkstyle fixes, added fixed root node to graph
Lukas Stadler <lukas.stadler@jku.at>
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504 if (end() != null) { |
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505 builder.append(" -> "); |
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506 boolean hasSucc = false; |
2621
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parents:
2616
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507 for (BlockBegin s : end().blockSuccessors()) { |
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508 if (hasSucc) { |
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509 builder.append(", "); |
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510 } |
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511 builder.append("#"); |
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512 builder.append(s.blockID); |
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513 hasSucc = true; |
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514 } |
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515 } |
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516 return builder.toString(); |
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517 } |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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518 |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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519 /** |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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520 * Get the number of successors. |
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521 * @return the number of successors |
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522 */ |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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523 public int numberOfSux() { |
2621
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changed stateAfter FrameState to successor (instead of input), checkstyle fixes, added fixed root node to graph
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2616
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524 return end().blockSuccessorCount(); |
2507
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525 } |
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parents:
diff
changeset
|
526 |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
527 /** |
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parents:
diff
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|
528 * Get the successor at a certain position. |
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529 * @param i the position |
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parents:
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530 * @return the successor |
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parents:
diff
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|
531 */ |
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parents:
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|
532 public BlockBegin suxAt(int i) { |
2621
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changed stateAfter FrameState to successor (instead of input), checkstyle fixes, added fixed root node to graph
Lukas Stadler <lukas.stadler@jku.at>
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533 return end().blockSuccessor(i); |
2507
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534 } |
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|
535 |
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parents:
diff
changeset
|
536 /** |
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|
537 * Get the number of predecessors. |
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|
538 * @return the number of predecessors |
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diff
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|
539 */ |
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diff
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|
540 public int numberOfPreds() { |
2674
6ab73784566a
* BlockBegin.predecessors changed to List<BlockEnd>
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parents:
2645
diff
changeset
|
541 // assert predecessors.size() == predecessors().size(); |
2507
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Thomas Wuerthinger <thomas@wuerthinger.net>
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542 return predecessors.size(); |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
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543 } |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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diff
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|
544 |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
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|
545 /** |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
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546 * @return the label associated with the block, used by the LIR |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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547 */ |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
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548 public Label label() { |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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549 return lirBlock().label; |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
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|
550 } |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
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|
551 |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
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552 public void setLir(LIRList lir) { |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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553 lirBlock().setLir(lir); |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
554 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
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|
555 |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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556 public LIRList lir() { |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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|
557 return lirBlock().lir(); |
9ec15d6914ca
Pull over of compiler from maxine repository.
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diff
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|
558 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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|
559 |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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|
560 public LIRBlock lirBlock() { |
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|
561 return lirBlock; |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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diff
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|
562 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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diff
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|
563 |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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diff
changeset
|
564 public int exceptionHandlerPco() { |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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565 return lirBlock == null ? 0 : lirBlock.exceptionHandlerPCO; |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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diff
changeset
|
566 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
567 |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
568 public void setExceptionHandlerPco(int codeOffset) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
569 lirBlock().exceptionHandlerPCO = codeOffset; |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
570 } |
9ec15d6914ca
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
571 |
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parents:
diff
changeset
|
572 public int numberOfExceptionHandlers() { |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
573 return exceptionHandlerBlocks == null ? 0 : exceptionHandlerBlocks.size(); |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
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|
574 } |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
575 |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
576 public BlockBegin exceptionHandlerAt(int i) { |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
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577 return exceptionHandlerBlocks.get(i); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
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|
578 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
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|
579 |
2674
6ab73784566a
* BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents:
2645
diff
changeset
|
580 public BlockEnd predAt(int j) { |
6ab73784566a
* BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents:
2645
diff
changeset
|
581 // assert predecessors.get(j) == predecessors().get(j); |
2507
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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diff
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|
582 return predecessors.get(j); |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
583 } |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
584 |
2674
6ab73784566a
* BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents:
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diff
changeset
|
585 public boolean isPredecessor(BlockEnd block) { |
6ab73784566a
* BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents:
2645
diff
changeset
|
586 // assert predecessors.contains(block) == predecessors().contains(block); |
6ab73784566a
* BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents:
2645
diff
changeset
|
587 return predecessors.contains(block); |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
588 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
589 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
590 public void printWithoutPhis(LogStream out) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
591 // print block id |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
592 BlockEnd end = end(); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
593 out.print("B").print(blockID).print(" "); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
594 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
595 // print flags |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
596 StringBuilder sb = new StringBuilder(8); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
597 if (isExceptionEntry()) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
598 sb.append('E'); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
599 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
600 if (isParserLoopHeader()) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
601 sb.append("LH"); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
602 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
603 if (sb.length() != 0) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
604 out.print('(').print(sb.toString()).print(')'); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
605 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
606 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
607 // print block bci range |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
608 out.print('[').print(bci()).print(", ").print(end == null ? -1 : end.bci()).print(']'); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
609 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
610 // print block successors |
2581
4a36a0bd6d18
added GraalGraph to classpath, Node as superclass of Value
Lukas Stadler <lukas.stadler@jku.at>
parents:
2565
diff
changeset
|
611 if (end != null && end.blockSuccessors().size() > 0) { |
2507
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
612 out.print(" ."); |
2581
4a36a0bd6d18
added GraalGraph to classpath, Node as superclass of Value
Lukas Stadler <lukas.stadler@jku.at>
parents:
2565
diff
changeset
|
613 for (BlockBegin successor : end.blockSuccessors()) { |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
614 out.print(" B").print(successor.blockID); |
9ec15d6914ca
Pull over of compiler from maxine repository.
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parents:
diff
changeset
|
615 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
616 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
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parents:
diff
changeset
|
617 // print exception handlers |
9ec15d6914ca
Pull over of compiler from maxine repository.
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parents:
diff
changeset
|
618 if (!exceptionHandlers().isEmpty()) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
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parents:
diff
changeset
|
619 out.print(" (xhandlers"); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
620 for (BlockBegin handler : exceptionHandlerBlocks()) { |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
621 out.print(" B").print(handler.blockID); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
622 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
623 out.print(')'); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
624 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
625 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
626 // print predecessors |
2581
4a36a0bd6d18
added GraalGraph to classpath, Node as superclass of Value
Lukas Stadler <lukas.stadler@jku.at>
parents:
2565
diff
changeset
|
627 if (!blockPredecessors().isEmpty()) { |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
628 out.print(" pred:"); |
2674
6ab73784566a
* BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents:
2645
diff
changeset
|
629 for (BlockEnd pred : blockPredecessors()) { |
6ab73784566a
* BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents:
2645
diff
changeset
|
630 out.print(" B").print(pred.begin().blockID); |
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631 } |
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632 } |
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633 } |
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634 |
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635 @Override |
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636 public void print(LogStream out) { |
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637 |
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638 printWithoutPhis(out); |
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639 |
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640 // print phi functions |
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641 boolean hasPhisInLocals = false; |
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642 boolean hasPhisOnStack = false; |
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643 |
2621
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changed stateAfter FrameState to successor (instead of input), checkstyle fixes, added fixed root node to graph
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644 if (end() != null && end().stateAfter() != null) { |
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645 FrameState state = stateBefore(); |
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646 |
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647 int i = 0; |
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648 while (!hasPhisOnStack && i < state.stackSize()) { |
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649 Value value = state.stackAt(i); |
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650 hasPhisOnStack = isPhiAtBlock(value); |
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651 if (value != null && !value.isIllegal()) { |
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652 i += value.kind.sizeInSlots(); |
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653 } else { |
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654 i++; |
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655 } |
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656 } |
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657 |
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658 for (i = 0; !hasPhisInLocals && i < state.localsSize();) { |
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659 Value value = state.localAt(i); |
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660 hasPhisInLocals = isPhiAtBlock(value); |
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661 // also ignore illegal HiWords |
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662 if (value != null && !value.isIllegal()) { |
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663 i += value.kind.sizeInSlots(); |
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664 } else { |
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665 i++; |
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666 } |
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667 } |
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668 } |
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669 |
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670 // print values in locals |
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671 if (hasPhisInLocals) { |
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672 out.println(); |
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673 out.println("Locals:"); |
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|
674 |
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675 FrameState state = stateBefore(); |
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676 int i = 0; |
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677 while (i < state.localsSize()) { |
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678 Value value = state.localAt(i); |
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679 if (value != null) { |
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680 out.println(stateString(i, value)); |
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681 // also ignore illegal HiWords |
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682 i += value.isIllegal() ? 1 : value.kind.sizeInSlots(); |
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683 } else { |
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684 i++; |
2507
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|
685 } |
2564
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686 } |
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687 out.println(); |
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688 } |
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|
689 |
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|
690 // print values on stack |
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changeset
|
691 if (hasPhisOnStack) { |
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692 out.println(); |
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693 out.println("Stack:"); |
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694 int i = 0; |
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695 while (i < stateBefore().stackSize()) { |
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696 Value value = stateBefore().stackAt(i); |
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697 if (value != null) { |
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698 out.println(stateString(i, value)); |
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699 i += value.kind.sizeInSlots(); |
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|
700 } else { |
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|
701 i++; |
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|
702 } |
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|
703 } |
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changeset
|
704 } |
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changeset
|
705 |
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|
706 } |
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changeset
|
707 |
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changeset
|
708 |
9ec15d6914ca
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diff
changeset
|
709 |
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changeset
|
710 /** |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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diff
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|
711 * Determines if a given instruction is a phi whose {@linkplain Phi#block() join block} is a given block. |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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|
712 * |
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|
713 * @param value the instruction to test |
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diff
changeset
|
714 * @param block the block that may be the join block of {@code value} if {@code value} is a phi |
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parents:
diff
changeset
|
715 * @return {@code true} if {@code value} is a phi and its join block is {@code block} |
9ec15d6914ca
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Thomas Wuerthinger <thomas@wuerthinger.net>
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changeset
|
716 */ |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
717 private boolean isPhiAtBlock(Value value) { |
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Pull over of compiler from maxine repository.
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parents:
diff
changeset
|
718 return value instanceof Phi && ((Phi) value).block() == this; |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
719 } |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
720 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
721 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
722 /** |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
723 * Formats a given instruction as a value in a {@linkplain FrameState frame state}. If the instruction is a phi defined at a given |
2582
768d77a1c7af
new node layout: Instruction
Lukas Stadler <lukas.stadler@jku.at>
parents:
2581
diff
changeset
|
724 * block, its {@linkplain Phi#phiInputCount() inputs} are appended to the returned string. |
2507
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
725 * |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
726 * @param index the index of the value in the frame state |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
727 * @param value the frame state value |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
728 * @param block if {@code value} is a phi, then its inputs are formatted if {@code block} is its |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
729 * {@linkplain Phi#block() join point} |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
730 * @return the instruction representation as a string |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
731 */ |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
732 public String stateString(int index, Value value) { |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
733 StringBuilder sb = new StringBuilder(30); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
734 sb.append(String.format("%2d %s", index, Util.valueString(value))); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
735 if (value instanceof Phi) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
736 Phi phi = (Phi) value; |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
737 // print phi operands |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
738 if (phi.block() == this) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
739 sb.append(" ["); |
2582
768d77a1c7af
new node layout: Instruction
Lukas Stadler <lukas.stadler@jku.at>
parents:
2581
diff
changeset
|
740 for (int j = 0; j < phi.phiInputCount(); j++) { |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
741 sb.append(' '); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
742 Value operand = phi.inputAt(j); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
743 if (operand != null) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
744 sb.append(Util.valueString(operand)); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
745 } else { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
746 sb.append("NULL"); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
747 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
748 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
749 sb.append("] "); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
750 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
751 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
752 if (value != null && value.hasSubst()) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
753 sb.append("alias ").append(Util.valueString(value.subst())); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
754 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
755 return sb.toString(); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
756 } |
2674
6ab73784566a
* BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents:
2645
diff
changeset
|
757 |
6ab73784566a
* BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents:
2645
diff
changeset
|
758 @Override |
6ab73784566a
* BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents:
2645
diff
changeset
|
759 public String shortName() { |
6ab73784566a
* BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents:
2645
diff
changeset
|
760 return "BlockBegin #" + blockID; |
6ab73784566a
* BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents:
2645
diff
changeset
|
761 } |
6ab73784566a
* BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents:
2645
diff
changeset
|
762 |
6ab73784566a
* BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents:
2645
diff
changeset
|
763 |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
764 } |