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annotate graal/GraalCompiler/src/com/sun/c1x/ir/BlockBegin.java @ 2730:027adfafd47e

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first batch of GraphBuilder changes to remove dependencies on BlockBegin
author Lukas Stadler <lukas.stadler@jku.at>
date Thu, 19 May 2011 17:24:23 +0200
parents 108adba3345e
children 2ef23785ca93
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rev   line source
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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 successors().set(super.successorCount() + SUCCESSOR_END, end);
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75 }
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76
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77 /**
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78 * A unique id used in tracing.
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79 */
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80 public final int blockID;
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81
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82 private int depthFirstNumber;
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83 private int linearScanNumber;
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84
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85 // LIR block
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86 public LIRBlock lirBlock;
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87
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88 public void setLIRBlock(LIRBlock block) {
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89 this.lirBlock = block;
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90 }
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91
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92 public LIRBlock lirBlock() {
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93 return lirBlock;
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94 }
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95
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96 /**
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97 * Index of bytecode that generated this node when appended in a basic block.
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98 * Negative values indicate special cases.
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99 */
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100 private int bci;
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101
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102 /**
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103 * Constructs a new BlockBegin at the specified bytecode index.
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104 * @param bci the bytecode index of the start
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105 * @param blockID the ID of the block
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106 * @param graph
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107 */
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108 public BlockBegin(int bci, int blockID, Graph graph) {
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109 super(CiKind.Illegal, INPUT_COUNT, SUCCESSOR_COUNT, graph);
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110 this.blockID = blockID;
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111 depthFirstNumber = -1;
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112 linearScanNumber = -1;
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113 this.bci = bci;
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114 }
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115
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116 /**
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117 * Gets the list of predecessors of this block.
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118 * @return the predecessor list
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119 */
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120 @SuppressWarnings({ "unchecked", "rawtypes" })
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121 public List<Instruction> blockPredecessors() {
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122 if (predecessors().size() == 1 && predecessors().get(0) == graph().root()) {
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123 return Collections.EMPTY_LIST;
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124 } else {
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125 return (List) Collections.unmodifiableList(predecessors());
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126 }
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127 }
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128
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129 /**
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130 * Gets the depth first traversal number of this block.
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131 * @return the depth first number
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132 */
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133 public int depthFirstNumber() {
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134 return depthFirstNumber;
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135 }
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136
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137 /**
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138 * Gets the linear scan number of this block.
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139 * @return the linear scan number
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140 */
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141 public int linearScanNumber() {
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142 return linearScanNumber;
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143 }
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144
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145 public void setDepthFirstNumber(int depthFirstNumber) {
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146 assert depthFirstNumber >= 0;
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147 this.depthFirstNumber = depthFirstNumber;
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148 }
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149
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150 public void setLinearScanNumber(int linearScanNumber) {
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151 this.linearScanNumber = linearScanNumber;
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152 }
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153
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154 /**
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155 * Iterate over this block, its exception handlers, and its successors, in that order.
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156 * @param closure the closure to apply to each block
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157 */
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158 public void iteratePreOrder(BlockClosure closure) {
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159 // XXX: identity hash map might be too slow, consider a boolean array or a mark field
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160 iterate(new IdentityHashMap<BlockBegin, BlockBegin>(), closure);
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161 }
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162
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163 /**
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164 * Iterate over all blocks transitively reachable from this block.
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165 * @param closure the closure to apply to each block
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166 * @param predecessors {@code true} if also to include this blocks predecessors
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167 */
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168 public void iterateAnyOrder(BlockClosure closure, boolean predecessors) {
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169 IdentityHashMap<BlockBegin, BlockBegin> mark = new IdentityHashMap<BlockBegin, BlockBegin>();
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170 LinkedList<BlockBegin> queue = new LinkedList<BlockBegin>();
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171 queue.offer(this);
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172 mark.put(this, this);
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173 BlockBegin block;
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174 while ((block = queue.poll()) != null) {
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175 closure.apply(block);
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176
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177 Instruction inst = block;
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178 ArrayList<BlockBegin> excBlocks = new ArrayList<BlockBegin>();
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179 while (inst != null) {
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180 if (inst instanceof ExceptionEdgeInstruction) {
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181 excBlocks.add(((ExceptionEdgeInstruction) inst).exceptionEdge());
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182 }
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183 inst = inst.next();
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184 }
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185 while (excBlocks.remove(null)) {
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186 // nothing
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187 }
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188 if (excBlocks.size() > 0) {
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189 queueBlocks(queue, excBlocks, mark);
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190 }
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191
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dd115f80acf8 changed stateAfter FrameState to successor (instead of input), checkstyle fixes, added fixed root node to graph
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192 queueBlocks(queue, block.end().blockSuccessors(), mark);
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193 if (predecessors) {
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194 queueBlockEnds(queue, block.blockPredecessors(), mark);
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195 }
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196 }
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197 }
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198
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199 private void queueBlocks(LinkedList<BlockBegin> queue, List<BlockBegin> list, IdentityHashMap<BlockBegin, BlockBegin> mark) {
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200 if (list != null) {
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201 for (BlockBegin b : list) {
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202 if (!mark.containsKey(b)) {
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203 queue.offer(b);
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204 mark.put(b, b);
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205 }
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206 }
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207 }
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208 }
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209
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210 private void queueBlockEnds(LinkedList<BlockBegin> queue, List<Instruction> list, IdentityHashMap<BlockBegin, BlockBegin> mark) {
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211 if (list != null) {
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212 for (Instruction end : list) {
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213 BlockBegin b = end.block();
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214 if (!mark.containsKey(b)) {
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215 queue.offer(b);
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216 mark.put(b, b);
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217 }
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218 }
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219 }
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220 }
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221
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c1a9bf38da28 Removed bci from the Instruction class.
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222 /**
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223 * Gets the bytecode index of this instruction.
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224 * @return the bytecode index of this instruction
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225 */
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226 public int bci() {
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227 return bci;
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228 }
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229
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230 private void iterate(IdentityHashMap<BlockBegin, BlockBegin> mark, BlockClosure closure) {
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231 if (!mark.containsKey(this)) {
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232 mark.put(this, this);
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233 closure.apply(this);
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234 BlockEnd e = end();
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235
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236 Instruction inst = this;
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237 ArrayList<BlockBegin> excBlocks = new ArrayList<BlockBegin>();
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238 while (inst != null) {
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239 if (inst instanceof Invoke) {
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240 excBlocks.add(((Invoke) inst).exceptionEdge());
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241 } else if (inst instanceof Throw) {
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242 excBlocks.add(((Throw) inst).exceptionEdge());
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243 }
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244 inst = inst.next();
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245 }
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246 while (excBlocks.remove(null)) {
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247 // nothing
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248 }
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249 if (excBlocks.size() > 0) {
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250 iterateReverse(mark, closure, excBlocks);
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251 }
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252
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253 assert e != null : "block must have block end";
2581
4a36a0bd6d18 added GraalGraph to classpath, Node as superclass of Value
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254 iterateReverse(mark, closure, e.blockSuccessors());
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255 }
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256 }
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257
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258 private void iterateReverse(IdentityHashMap<BlockBegin, BlockBegin> mark, BlockClosure closure, List<BlockBegin> list) {
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259 for (int i = list.size() - 1; i >= 0; i--) {
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260 list.get(i).iterate(mark, closure);
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261 }
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262 }
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263
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264 @Override
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265 public void accept(ValueVisitor v) {
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266 v.visitBlockBegin(this);
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267 }
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268
2730
027adfafd47e first batch of GraphBuilder changes to remove dependencies on BlockBegin
Lukas Stadler <lukas.stadler@jku.at>
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diff changeset
269 public void mergeOrClone(FrameStateAccess newState, RiMethod method, boolean loopHeader) {
2616
3558ca7088c0 FrameState and Graphviz changes:
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diff changeset
270 FrameState existingState = stateBefore();
2507
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diff changeset
271
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272 if (existingState == null) {
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273 // copy state because it is modified
2636
8c02ca1e9eb1 Fixed bci for stateBefore in BlockBegin
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diff changeset
274 FrameState duplicate = newState.duplicate(bci());
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275
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276 // if the block is a loop header, insert all necessary phis
2730
027adfafd47e first batch of GraphBuilder changes to remove dependencies on BlockBegin
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diff changeset
277 if (loopHeader) {
2616
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diff changeset
278 insertLoopPhis(duplicate);
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279 }
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280
2616
3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
281 setStateBefore(duplicate);
2507
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diff changeset
282 } else {
2581
4a36a0bd6d18 added GraalGraph to classpath, Node as superclass of Value
Lukas Stadler <lukas.stadler@jku.at>
parents: 2565
diff changeset
283 if (!C1XOptions.AssumeVerifiedBytecode && !existingState.isCompatibleWith(newState)) {
2507
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284 // stacks or locks do not match--bytecodes would not verify
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285 throw new CiBailout("stack or locks do not match");
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286 }
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287
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288 assert existingState.localsSize() == newState.localsSize();
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289 assert existingState.stackSize() == newState.stackSize();
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290
2616
3558ca7088c0 FrameState and Graphviz changes:
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diff changeset
291 existingState.merge(this, newState);
2507
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292 }
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293 }
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294
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295 private void insertLoopPhis(FrameState newState) {
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296 int stackSize = newState.stackSize();
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297 for (int i = 0; i < stackSize; i++) {
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298 // always insert phis for the stack
2616
3558ca7088c0 FrameState and Graphviz changes:
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diff changeset
299 newState.setupPhiForStack(this, i);
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300 }
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301 int localsSize = newState.localsSize();
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302 for (int i = 0; i < localsSize; i++) {
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303 Value x = newState.localAt(i);
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304 if (x != null) {
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3558ca7088c0 FrameState and Graphviz changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2611
diff changeset
305 newState.setupPhiForLocal(this, i);
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306 }
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307 }
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308 }
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309
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310 @Override
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311 public String toString() {
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312 StringBuilder builder = new StringBuilder();
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313 builder.append("block #");
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314 builder.append(blockID);
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315 builder.append(",");
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316 builder.append(depthFirstNumber);
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317 builder.append(" [");
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318
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319 builder.append("]");
2621
dd115f80acf8 changed stateAfter FrameState to successor (instead of input), checkstyle fixes, added fixed root node to graph
Lukas Stadler <lukas.stadler@jku.at>
parents: 2616
diff changeset
320 if (end() != null) {
2507
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321 builder.append(" -> ");
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322 boolean hasSucc = false;
2621
dd115f80acf8 changed stateAfter FrameState to successor (instead of input), checkstyle fixes, added fixed root node to graph
Lukas Stadler <lukas.stadler@jku.at>
parents: 2616
diff changeset
323 for (BlockBegin s : end().blockSuccessors()) {
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324 if (hasSucc) {
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325 builder.append(", ");
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diff changeset
326 }
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327 builder.append("#");
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328 builder.append(s.blockID);
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329 hasSucc = true;
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330 }
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331 }
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diff changeset
332 return builder.toString();
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333 }
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diff changeset
334
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diff changeset
335 /**
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parents:
diff changeset
336 * Get the number of successors.
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parents:
diff changeset
337 * @return the number of successors
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diff changeset
338 */
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339 public int numberOfSux() {
2621
dd115f80acf8 changed stateAfter FrameState to successor (instead of input), checkstyle fixes, added fixed root node to graph
Lukas Stadler <lukas.stadler@jku.at>
parents: 2616
diff changeset
340 return end().blockSuccessorCount();
2507
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341 }
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342
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diff changeset
343 /**
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diff changeset
344 * Get the successor at a certain position.
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345 * @param i the position
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346 * @return the successor
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347 */
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diff changeset
348 public BlockBegin suxAt(int i) {
2621
dd115f80acf8 changed stateAfter FrameState to successor (instead of input), checkstyle fixes, added fixed root node to graph
Lukas Stadler <lukas.stadler@jku.at>
parents: 2616
diff changeset
349 return end().blockSuccessor(i);
2507
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350 }
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diff changeset
351
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parents:
diff changeset
352 /**
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parents:
diff changeset
353 * Get the number of predecessors.
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diff changeset
354 * @return the number of predecessors
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diff changeset
355 */
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diff changeset
356 public int numberOfPreds() {
2707
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
357 // ignore the graph root
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
358 if (predecessors().size() == 1 && predecessors().get(0) == graph().root()) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
359 return 0;
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
360 } else {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
361 return predecessors().size();
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
362 }
2507
9ec15d6914ca Pull over of compiler from maxine repository.
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diff changeset
363 }
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diff changeset
364
2707
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
365 public Instruction predAt(int j) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
366 return (Instruction) predecessors().get(j);
2507
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diff changeset
367 }
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
368
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
369 public void printWithoutPhis(LogStream out) {
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
370 // print block id
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parents:
diff changeset
371 BlockEnd end = end();
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parents:
diff changeset
372 out.print("B").print(blockID).print(" ");
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
373
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parents:
diff changeset
374 // print flags
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
375 StringBuilder sb = new StringBuilder(8);
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
376 if (sb.length() != 0) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
377 out.print('(').print(sb.toString()).print(')');
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
378 }
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
379
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
380 // print block bci range
2716
c1a9bf38da28 Removed bci from the Instruction class.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2715
diff changeset
381 out.print('[').print(-1).print(", ").print(-1).print(']');
2507
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parents:
diff changeset
382
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
383 // print block successors
2581
4a36a0bd6d18 added GraalGraph to classpath, Node as superclass of Value
Lukas Stadler <lukas.stadler@jku.at>
parents: 2565
diff changeset
384 if (end != null && end.blockSuccessors().size() > 0) {
2507
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
385 out.print(" .");
2581
4a36a0bd6d18 added GraalGraph to classpath, Node as superclass of Value
Lukas Stadler <lukas.stadler@jku.at>
parents: 2565
diff changeset
386 for (BlockBegin successor : end.blockSuccessors()) {
2507
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parents:
diff changeset
387 out.print(" B").print(successor.blockID);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
388 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
389 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
390
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
391 // print predecessors
2581
4a36a0bd6d18 added GraalGraph to classpath, Node as superclass of Value
Lukas Stadler <lukas.stadler@jku.at>
parents: 2565
diff changeset
392 if (!blockPredecessors().isEmpty()) {
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
393 out.print(" pred:");
2707
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
394 for (Instruction pred : blockPredecessors()) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
395 out.print(" B").print(pred.block().blockID);
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
396 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
397 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
398 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
399
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
400 @Override
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
401 public void print(LogStream out) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
402
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
403 printWithoutPhis(out);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
404
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
405 // print phi functions
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
406 boolean hasPhisInLocals = false;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
407 boolean hasPhisOnStack = false;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
408
2621
dd115f80acf8 changed stateAfter FrameState to successor (instead of input), checkstyle fixes, added fixed root node to graph
Lukas Stadler <lukas.stadler@jku.at>
parents: 2616
diff changeset
409 if (end() != null && end().stateAfter() != null) {
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
410 FrameState state = stateBefore();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
411
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
412 int i = 0;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
413 while (!hasPhisOnStack && i < state.stackSize()) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
414 Value value = state.stackAt(i);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
415 hasPhisOnStack = isPhiAtBlock(value);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
416 if (value != null && !value.isIllegal()) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
417 i += value.kind.sizeInSlots();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
418 } else {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
419 i++;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
420 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
421 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
422
2564
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
423 for (i = 0; !hasPhisInLocals && i < state.localsSize();) {
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
424 Value value = state.localAt(i);
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
425 hasPhisInLocals = isPhiAtBlock(value);
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
426 // also ignore illegal HiWords
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
427 if (value != null && !value.isIllegal()) {
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
428 i += value.kind.sizeInSlots();
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
429 } else {
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
430 i++;
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
431 }
2564
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
432 }
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
433 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
434
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
435 // print values in locals
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
436 if (hasPhisInLocals) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
437 out.println();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
438 out.println("Locals:");
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
439
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
440 FrameState state = stateBefore();
2564
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
441 int i = 0;
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
442 while (i < state.localsSize()) {
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
443 Value value = state.localAt(i);
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
444 if (value != null) {
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
445 out.println(stateString(i, value));
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
446 // also ignore illegal HiWords
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
447 i += value.isIllegal() ? 1 : value.kind.sizeInSlots();
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
448 } else {
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
449 i++;
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
450 }
2564
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
451 }
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
452 out.println();
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
453 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
454
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
455 // print values on stack
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
456 if (hasPhisOnStack) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
457 out.println();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
458 out.println("Stack:");
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
459 int i = 0;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
460 while (i < stateBefore().stackSize()) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
461 Value value = stateBefore().stackAt(i);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
462 if (value != null) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
463 out.println(stateString(i, value));
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
464 i += value.kind.sizeInSlots();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
465 } else {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
466 i++;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
467 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
468 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
469 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
470
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
471 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
472
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
473 /**
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
474 * Determines if a given instruction is a phi whose {@linkplain Phi#block() join block} is a given block.
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
475 *
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
476 * @param value the instruction to test
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
477 * @param block the block that may be the join block of {@code value} if {@code value} is a phi
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
478 * @return {@code true} if {@code value} is a phi and its join block is {@code block}
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
479 */
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
480 private boolean isPhiAtBlock(Value value) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
481 return value instanceof Phi && ((Phi) value).block() == this;
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
482 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
483
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
484
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
485 /**
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
486 * 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
487 * block, its {@linkplain Phi#phiInputCount() inputs} are appended to the returned string.
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
488 *
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
489 * @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
490 * @param value the frame state value
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
491 * @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
492 * {@linkplain Phi#block() join point}
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
493 * @return the instruction representation as a string
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
494 */
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
495 public String stateString(int index, Value value) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
496 StringBuilder sb = new StringBuilder(30);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
497 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
498 if (value instanceof Phi) {
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
499 Phi phi = (Phi) value;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
500 // print phi operands
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
501 if (phi.block() == this) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
502 sb.append(" [");
2582
768d77a1c7af new node layout: Instruction
Lukas Stadler <lukas.stadler@jku.at>
parents: 2581
diff changeset
503 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
504 sb.append(' ');
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
505 Value operand = phi.inputAt(j);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
506 if (operand != null) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
507 sb.append(Util.valueString(operand));
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
508 } else {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
509 sb.append("NULL");
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
510 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
511 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
512 sb.append("] ");
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
513 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
514 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
515 if (value != null && value.hasSubst()) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
516 sb.append("alias ").append(Util.valueString(value.subst()));
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
517 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
518 return sb.toString();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
519 }
2674
6ab73784566a * BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents: 2645
diff changeset
520
6ab73784566a * BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents: 2645
diff changeset
521 @Override
6ab73784566a * BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents: 2645
diff changeset
522 public String shortName() {
6ab73784566a * BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents: 2645
diff changeset
523 return "BlockBegin #" + blockID;
6ab73784566a * BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents: 2645
diff changeset
524 }
6ab73784566a * BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents: 2645
diff changeset
525
2707
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
526 /**
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
527 * Iterates over all successors of this block: successors of the end node and exception handler.
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
528 */
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
529 public void allSuccessorsDo(boolean backwards, BlockClosure closure) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
530 if (backwards) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
531 for (int i = numberOfSux() - 1; i >= 0; i--) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
532 closure.apply(suxAt(i));
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
533 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
534 } else {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
535 for (int i = 0; i < numberOfSux(); i++) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
536 closure.apply(suxAt(i));
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
537 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
538 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
539 for (Instruction x = next(); x != null; x = x.next()) {
2715
3ac3dd97d8df Added ExceptionEdgeInstruction interface.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2708
diff changeset
540 if (x instanceof ExceptionEdgeInstruction && ((ExceptionEdgeInstruction) x).exceptionEdge() != null) {
3ac3dd97d8df Added ExceptionEdgeInstruction interface.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2708
diff changeset
541 closure.apply(((ExceptionEdgeInstruction) x).exceptionEdge());
2707
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
542 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
543 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
544 }
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
545 }