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annotate graal/GraalCompiler/src/com/sun/c1x/ir/BlockBegin.java @ 2726:819a40e46826

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Clean up
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Thu, 19 May 2011 17:02:12 +0200
parents e2d20fc3760f
children 1ddcbcd33325
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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 /**
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83 * Denotes the current set of {@link BlockBegin.BlockFlag} settings.
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84 */
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85 private int blockFlags;
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86
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87 private int depthFirstNumber;
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88 private int linearScanNumber;
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89
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90 // LIR block
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91 private LIRBlock lirBlock;
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92
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93 public void setLIRBlock(LIRBlock block) {
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94 this.lirBlock = block;
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95 }
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96
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97 public LIRBlock lirBlock() {
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98 return lirBlock;
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99 }
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100
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101 /**
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102 * Index of bytecode that generated this node when appended in a basic block.
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103 * Negative values indicate special cases.
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104 */
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105 private int bci;
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106
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107 /**
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108 * Constructs a new BlockBegin at the specified bytecode index.
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109 * @param bci the bytecode index of the start
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110 * @param blockID the ID of the block
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111 * @param graph
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112 */
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113 public BlockBegin(int bci, int blockID, Graph graph) {
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114 super(CiKind.Illegal, INPUT_COUNT, SUCCESSOR_COUNT, graph);
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115 this.blockID = blockID;
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116 depthFirstNumber = -1;
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117 linearScanNumber = -1;
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118 setBCI(bci);
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119 }
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120
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121 /**
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122 * Gets the list of predecessors of this block.
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123 * @return the predecessor list
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124 */
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125 @SuppressWarnings({ "unchecked", "rawtypes" })
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126 public List<Instruction> blockPredecessors() {
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127 if (predecessors().size() == 1 && predecessors().get(0) == graph().root()) {
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128 return Collections.EMPTY_LIST;
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129 } else {
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130 return (List) Collections.unmodifiableList(predecessors());
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131 }
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132 }
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133
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134 /**
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135 * Gets the depth first traversal number of this block.
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136 * @return the depth first number
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137 */
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138 public int depthFirstNumber() {
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139 return depthFirstNumber;
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140 }
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141
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142 /**
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143 * Gets the linear scan number of this block.
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144 * @return the linear scan number
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145 */
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146 public int linearScanNumber() {
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147 return linearScanNumber;
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148 }
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149
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150 public void setDepthFirstNumber(int depthFirstNumber) {
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151 assert depthFirstNumber >= 0;
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152 this.depthFirstNumber = depthFirstNumber;
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153 }
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154
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155 public void setLinearScanNumber(int linearScanNumber) {
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156 this.linearScanNumber = linearScanNumber;
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157 }
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158
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159 /**
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160 * Iterate over this block, its exception handlers, and its successors, in that order.
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161 * @param closure the closure to apply to each block
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162 */
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163 public void iteratePreOrder(BlockClosure closure) {
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164 // XXX: identity hash map might be too slow, consider a boolean array or a mark field
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165 iterate(new IdentityHashMap<BlockBegin, BlockBegin>(), closure);
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166 }
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167
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168 /**
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169 * Iterate over all blocks transitively reachable from this block.
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170 * @param closure the closure to apply to each block
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171 * @param predecessors {@code true} if also to include this blocks predecessors
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172 */
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173 public void iterateAnyOrder(BlockClosure closure, boolean predecessors) {
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174 IdentityHashMap<BlockBegin, BlockBegin> mark = new IdentityHashMap<BlockBegin, BlockBegin>();
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175 LinkedList<BlockBegin> queue = new LinkedList<BlockBegin>();
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176 queue.offer(this);
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177 mark.put(this, this);
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178 BlockBegin block;
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179 while ((block = queue.poll()) != null) {
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180 closure.apply(block);
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181
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182 Instruction inst = block;
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183 ArrayList<BlockBegin> excBlocks = new ArrayList<BlockBegin>();
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184 while (inst != null) {
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185 if (inst instanceof ExceptionEdgeInstruction) {
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186 excBlocks.add(((ExceptionEdgeInstruction) inst).exceptionEdge());
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187 }
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188 inst = inst.next();
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189 }
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190 while (excBlocks.remove(null)) {
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191 // nothing
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192 }
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193 if (excBlocks.size() > 0) {
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194 queueBlocks(queue, excBlocks, mark);
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195 }
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196
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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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197 queueBlocks(queue, block.end().blockSuccessors(), mark);
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198 if (predecessors) {
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199 queueBlockEnds(queue, block.blockPredecessors(), mark);
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200 }
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201 }
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202 }
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203
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204 private void queueBlocks(LinkedList<BlockBegin> queue, List<BlockBegin> list, IdentityHashMap<BlockBegin, BlockBegin> mark) {
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205 if (list != null) {
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206 for (BlockBegin b : list) {
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207 if (!mark.containsKey(b)) {
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208 queue.offer(b);
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209 mark.put(b, b);
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210 }
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211 }
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212 }
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213 }
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214
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215 private void queueBlockEnds(LinkedList<BlockBegin> queue, List<Instruction> list, IdentityHashMap<BlockBegin, BlockBegin> mark) {
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216 if (list != null) {
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217 for (Instruction end : list) {
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218 BlockBegin b = end.block();
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219 if (!mark.containsKey(b)) {
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220 queue.offer(b);
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221 mark.put(b, b);
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222 }
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223 }
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224 }
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225 }
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226
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c1a9bf38da28 Removed bci from the Instruction class.
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227 /**
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228 * Gets the bytecode index of this instruction.
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229 * @return the bytecode index of this instruction
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230 */
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231 public int bci() {
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232 return bci;
c1a9bf38da28 Removed bci from the Instruction class.
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233 }
c1a9bf38da28 Removed bci from the Instruction class.
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234
c1a9bf38da28 Removed bci from the Instruction class.
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235 /**
c1a9bf38da28 Removed bci from the Instruction class.
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236 * Sets the bytecode index of this instruction.
c1a9bf38da28 Removed bci from the Instruction class.
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237 * @param bci the new bytecode index for this instruction
c1a9bf38da28 Removed bci from the Instruction class.
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238 */
c1a9bf38da28 Removed bci from the Instruction class.
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239 public void setBCI(int bci) {
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240 this.bci = bci;
c1a9bf38da28 Removed bci from the Instruction class.
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241 }
c1a9bf38da28 Removed bci from the Instruction class.
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242
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243 private void iterate(IdentityHashMap<BlockBegin, BlockBegin> mark, BlockClosure closure) {
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244 if (!mark.containsKey(this)) {
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245 mark.put(this, this);
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246 closure.apply(this);
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247 BlockEnd e = end();
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248
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249 Instruction inst = this;
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250 ArrayList<BlockBegin> excBlocks = new ArrayList<BlockBegin>();
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251 while (inst != null) {
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252 if (inst instanceof Invoke) {
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253 excBlocks.add(((Invoke) inst).exceptionEdge());
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254 } else if (inst instanceof Throw) {
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255 excBlocks.add(((Throw) inst).exceptionEdge());
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256 }
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diff changeset
257 inst = inst.next();
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258 }
2707
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259 while (excBlocks.remove(null)) {
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260 // nothing
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261 }
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262 if (excBlocks.size() > 0) {
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263 iterateReverse(mark, closure, excBlocks);
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diff changeset
264 }
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diff changeset
265
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266 assert e != null : "block must have block end";
2581
4a36a0bd6d18 added GraalGraph to classpath, Node as superclass of Value
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diff changeset
267 iterateReverse(mark, closure, e.blockSuccessors());
2507
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268 }
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269 }
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270
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271 private void iterateReverse(IdentityHashMap<BlockBegin, BlockBegin> mark, BlockClosure closure, List<BlockBegin> list) {
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272 for (int i = list.size() - 1; i >= 0; i--) {
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273 list.get(i).iterate(mark, closure);
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274 }
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275 }
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276
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277 @Override
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278 public void accept(ValueVisitor v) {
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279 v.visitBlockBegin(this);
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280 }
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281
2616
3558ca7088c0 FrameState and Graphviz changes:
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diff changeset
282 public void mergeOrClone(FrameStateAccess newState, RiMethod method) {
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283 FrameState existingState = stateBefore();
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284
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285 if (existingState == null) {
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286 // copy state because it is modified
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8c02ca1e9eb1 Fixed bci for stateBefore in BlockBegin
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287 FrameState duplicate = newState.duplicate(bci());
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288
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289 if (C1XOptions.UseStackMapTableLiveness && method != null) {
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290 // if a liveness map is available, use it to invalidate dead locals
2565
cc1f1d396288 Remove inlining (3rd part)
Gilles Duboscq <gilles.duboscq@oracle.com>
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291 CiBitMap[] livenessMap = method.livenessMap();
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292 if (livenessMap != null && bci() >= 0) {
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293 assert bci() < livenessMap.length;
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294 CiBitMap liveness = livenessMap[bci()];
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295 if (liveness != null) {
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3558ca7088c0 FrameState and Graphviz changes:
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296 invalidateDeadLocals(duplicate, liveness);
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297 }
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298 }
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299 }
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300
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301 // if the block is a loop header, insert all necessary phis
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302 if (isParserLoopHeader()) {
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303 insertLoopPhis(duplicate);
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304 }
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305
2616
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306 setStateBefore(duplicate);
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307 } else {
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4a36a0bd6d18 added GraalGraph to classpath, Node as superclass of Value
Lukas Stadler <lukas.stadler@jku.at>
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308 if (!C1XOptions.AssumeVerifiedBytecode && !existingState.isCompatibleWith(newState)) {
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309 // stacks or locks do not match--bytecodes would not verify
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310 throw new CiBailout("stack or locks do not match");
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311 }
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312
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313 assert existingState.localsSize() == newState.localsSize();
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314 assert existingState.stackSize() == newState.stackSize();
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315
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316 existingState.merge(this, newState);
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317 }
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318 }
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319
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320 private void invalidateDeadLocals(FrameState newState, CiBitMap liveness) {
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321 int max = newState.localsSize();
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322 assert max <= liveness.size();
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323 for (int i = 0; i < max; i++) {
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324 Value x = newState.localAt(i);
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325 if (x != null) {
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326 if (!liveness.get(i)) {
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327 // invalidate the local if it is not live
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328 newState.invalidateLocal(i);
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329 }
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330 }
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331 }
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332 }
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333
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334 private void insertLoopPhis(FrameState newState) {
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335 int stackSize = newState.stackSize();
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336 for (int i = 0; i < stackSize; i++) {
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337 // always insert phis for the stack
2616
3558ca7088c0 FrameState and Graphviz changes:
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diff changeset
338 newState.setupPhiForStack(this, i);
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339 }
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340 int localsSize = newState.localsSize();
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341 for (int i = 0; i < localsSize; i++) {
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342 Value x = newState.localAt(i);
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343 if (x != null) {
2616
3558ca7088c0 FrameState and Graphviz changes:
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diff changeset
344 newState.setupPhiForLocal(this, i);
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345 }
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346 }
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347 }
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348
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e2d20fc3760f Removed last BlockBegin flag.
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349 boolean parserLoopHeader;
e2d20fc3760f Removed last BlockBegin flag.
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350
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351 public boolean isParserLoopHeader() {
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e2d20fc3760f Removed last BlockBegin flag.
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352 return parserLoopHeader;
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353 }
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354
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355 public void setParserLoopHeader(boolean value) {
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356 parserLoopHeader = value;
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357 }
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358
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359 @Override
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360 public String toString() {
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361 StringBuilder builder = new StringBuilder();
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362 builder.append("block #");
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363 builder.append(blockID);
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364 builder.append(",");
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365 builder.append(depthFirstNumber);
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366 builder.append(" [");
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367
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368 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
369 if (end() != null) {
2507
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370 builder.append(" -> ");
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371 boolean hasSucc = false;
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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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372 for (BlockBegin s : end().blockSuccessors()) {
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373 if (hasSucc) {
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374 builder.append(", ");
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375 }
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376 builder.append("#");
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377 builder.append(s.blockID);
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378 hasSucc = true;
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379 }
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380 }
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381 return builder.toString();
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382 }
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383
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diff changeset
384 /**
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385 * Get the number of successors.
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386 * @return the number of successors
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387 */
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388 public int numberOfSux() {
2621
dd115f80acf8 changed stateAfter FrameState to successor (instead of input), checkstyle fixes, added fixed root node to graph
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diff changeset
389 return end().blockSuccessorCount();
2507
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390 }
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391
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diff changeset
392 /**
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393 * Get the successor at a certain position.
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394 * @param i the position
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395 * @return the successor
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396 */
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diff changeset
397 public BlockBegin suxAt(int i) {
2621
dd115f80acf8 changed stateAfter FrameState to successor (instead of input), checkstyle fixes, added fixed root node to graph
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398 return end().blockSuccessor(i);
2507
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399 }
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diff changeset
400
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parents:
diff changeset
401 /**
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diff changeset
402 * Get the number of predecessors.
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diff changeset
403 * @return the number of predecessors
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diff changeset
404 */
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405 public int numberOfPreds() {
2707
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
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diff changeset
406 // ignore the graph root
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
407 if (predecessors().size() == 1 && predecessors().get(0) == graph().root()) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
408 return 0;
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
409 } else {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
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diff changeset
410 return predecessors().size();
7ed72769d51a exception handling related changes:
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parents: 2677
diff changeset
411 }
2507
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diff changeset
412 }
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diff changeset
413
2707
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
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diff changeset
414 public Instruction predAt(int j) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
415 return (Instruction) predecessors().get(j);
2507
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parents:
diff changeset
416 }
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parents:
diff changeset
417
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parents:
diff changeset
418 public void printWithoutPhis(LogStream out) {
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diff changeset
419 // print block id
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diff changeset
420 BlockEnd end = end();
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parents:
diff changeset
421 out.print("B").print(blockID).print(" ");
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parents:
diff changeset
422
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parents:
diff changeset
423 // print flags
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parents:
diff changeset
424 StringBuilder sb = new StringBuilder(8);
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parents:
diff changeset
425 if (isParserLoopHeader()) {
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parents:
diff changeset
426 sb.append("LH");
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
427 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
428 if (sb.length() != 0) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
429 out.print('(').print(sb.toString()).print(')');
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
430 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
431
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
432 // print block bci range
2716
c1a9bf38da28 Removed bci from the Instruction class.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2715
diff changeset
433 out.print('[').print(-1).print(", ").print(-1).print(']');
2507
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 block successors
2581
4a36a0bd6d18 added GraalGraph to classpath, Node as superclass of Value
Lukas Stadler <lukas.stadler@jku.at>
parents: 2565
diff changeset
436 if (end != null && end.blockSuccessors().size() > 0) {
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
437 out.print(" .");
2581
4a36a0bd6d18 added GraalGraph to classpath, Node as superclass of Value
Lukas Stadler <lukas.stadler@jku.at>
parents: 2565
diff changeset
438 for (BlockBegin successor : end.blockSuccessors()) {
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
439 out.print(" B").print(successor.blockID);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
440 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
441 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
442
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
443 // print predecessors
2581
4a36a0bd6d18 added GraalGraph to classpath, Node as superclass of Value
Lukas Stadler <lukas.stadler@jku.at>
parents: 2565
diff changeset
444 if (!blockPredecessors().isEmpty()) {
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
445 out.print(" pred:");
2707
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
446 for (Instruction pred : blockPredecessors()) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
447 out.print(" B").print(pred.block().blockID);
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
448 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
449 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
450 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
451
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
452 @Override
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
453 public void print(LogStream out) {
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 printWithoutPhis(out);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
456
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
457 // print phi functions
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
458 boolean hasPhisInLocals = false;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
459 boolean hasPhisOnStack = false;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
460
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
461 if (end() != null && end().stateAfter() != null) {
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
462 FrameState state = stateBefore();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
463
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
464 int i = 0;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
465 while (!hasPhisOnStack && i < state.stackSize()) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
466 Value value = state.stackAt(i);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
467 hasPhisOnStack = isPhiAtBlock(value);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
468 if (value != null && !value.isIllegal()) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
469 i += value.kind.sizeInSlots();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
470 } else {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
471 i++;
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
2564
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
475 for (i = 0; !hasPhisInLocals && i < state.localsSize();) {
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
476 Value value = state.localAt(i);
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
477 hasPhisInLocals = isPhiAtBlock(value);
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
478 // also ignore illegal HiWords
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
479 if (value != null && !value.isIllegal()) {
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
480 i += value.kind.sizeInSlots();
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
481 } else {
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
482 i++;
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
483 }
2564
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
484 }
2507
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
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
487 // print values in locals
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
488 if (hasPhisInLocals) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
489 out.println();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
490 out.println("Locals:");
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
491
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
492 FrameState state = stateBefore();
2564
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
493 int i = 0;
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
494 while (i < state.localsSize()) {
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
495 Value value = state.localAt(i);
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
496 if (value != null) {
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
497 out.println(stateString(i, value));
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
498 // also ignore illegal HiWords
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
499 i += value.isIllegal() ? 1 : value.kind.sizeInSlots();
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
500 } else {
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
501 i++;
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
502 }
2564
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
503 }
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2516
diff changeset
504 out.println();
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
505 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
506
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
507 // print values on stack
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
508 if (hasPhisOnStack) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
509 out.println();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
510 out.println("Stack:");
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
511 int i = 0;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
512 while (i < stateBefore().stackSize()) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
513 Value value = stateBefore().stackAt(i);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
514 if (value != null) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
515 out.println(stateString(i, value));
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
516 i += value.kind.sizeInSlots();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
517 } else {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
518 i++;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
519 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
520 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
521 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
522
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
523 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
524
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
525 /**
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
526 * 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
527 *
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
528 * @param value the instruction to test
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
529 * @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
530 * @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
531 */
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
532 private boolean isPhiAtBlock(Value value) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
533 return value instanceof Phi && ((Phi) value).block() == this;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
534 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
535
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
536
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
537 /**
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
538 * 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
539 * 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
540 *
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
541 * @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
542 * @param value the frame state value
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
543 * @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
544 * {@linkplain Phi#block() join point}
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
545 * @return the instruction representation as a string
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
546 */
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
547 public String stateString(int index, Value value) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
548 StringBuilder sb = new StringBuilder(30);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
549 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
550 if (value instanceof Phi) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
551 Phi phi = (Phi) value;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
552 // print phi operands
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
553 if (phi.block() == this) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
554 sb.append(" [");
2582
768d77a1c7af new node layout: Instruction
Lukas Stadler <lukas.stadler@jku.at>
parents: 2581
diff changeset
555 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
556 sb.append(' ');
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
557 Value operand = phi.inputAt(j);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
558 if (operand != null) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
559 sb.append(Util.valueString(operand));
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
560 } else {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
561 sb.append("NULL");
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
562 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
563 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
564 sb.append("] ");
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
565 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
566 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
567 if (value != null && value.hasSubst()) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
568 sb.append("alias ").append(Util.valueString(value.subst()));
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
569 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
570 return sb.toString();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
571 }
2674
6ab73784566a * BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents: 2645
diff changeset
572
6ab73784566a * BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents: 2645
diff changeset
573 @Override
6ab73784566a * BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents: 2645
diff changeset
574 public String shortName() {
6ab73784566a * BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents: 2645
diff changeset
575 return "BlockBegin #" + blockID;
6ab73784566a * BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents: 2645
diff changeset
576 }
6ab73784566a * BlockBegin.predecessors changed to List<BlockEnd>
Lukas Stadler <lukas.stadler@jku.at>
parents: 2645
diff changeset
577
2707
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
578 /**
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
579 * 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
580 */
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
581 public void allSuccessorsDo(boolean backwards, BlockClosure closure) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
582 if (backwards) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
583 for (int i = numberOfSux() - 1; i >= 0; i--) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
584 closure.apply(suxAt(i));
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
585 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
586 } else {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
587 for (int i = 0; i < numberOfSux(); i++) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
588 closure.apply(suxAt(i));
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
589 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
590 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
591 for (Instruction x = next(); x != null; x = x.next()) {
2715
3ac3dd97d8df Added ExceptionEdgeInstruction interface.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2708
diff changeset
592 if (x instanceof ExceptionEdgeInstruction && ((ExceptionEdgeInstruction) x).exceptionEdge() != null) {
3ac3dd97d8df Added ExceptionEdgeInstruction interface.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2708
diff changeset
593 closure.apply(((ExceptionEdgeInstruction) x).exceptionEdge());
2707
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
594 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
595 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
596 }
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
597 }