Mercurial > hg > truffle
annotate graal/GraalCompiler/src/com/sun/c1x/ir/BlockBegin.java @ 2718:c1ce2a53d6c3
Attempt to remove dependency between backend and BlockBegin.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Thu, 19 May 2011 16:05:42 +0200 |
parents | c1a9bf38da28 |
children | ae1c50a03297 |
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 private static final List<BlockBegin> NO_HANDLERS = Collections.emptyList(); |
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78 |
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79 /** |
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80 * An enumeration of flags for block entries indicating various things. |
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81 */ |
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82 public enum BlockFlag { |
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83 StandardEntry, |
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84 BackwardBranchTarget, |
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85 ParserLoopHeader, |
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86 LinearScanLoopHeader, |
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87 LinearScanLoopEnd; |
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88 |
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89 public final int mask = 1 << ordinal(); |
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90 } |
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91 |
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92 /** |
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93 * A unique id used in tracing. |
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94 */ |
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95 public final int blockID; |
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96 |
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97 /** |
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98 * Denotes the current set of {@link BlockBegin.BlockFlag} settings. |
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99 */ |
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100 private int blockFlags; |
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101 |
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102 private int depthFirstNumber; |
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103 private int linearScanNumber; |
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104 |
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105 private BlockBegin dominator; |
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106 |
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107 // LIR block |
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108 private LIRBlock lirBlock; |
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109 |
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110 public void setLIRBlock(LIRBlock block) { |
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111 this.lirBlock = block; |
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112 } |
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113 |
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114 /** |
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115 * Index of bytecode that generated this node when appended in a basic block. |
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116 * Negative values indicate special cases. |
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117 */ |
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118 private int bci; |
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119 |
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120 /** |
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121 * Constructs a new BlockBegin at the specified bytecode index. |
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122 * @param bci the bytecode index of the start |
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123 * @param blockID the ID of the block |
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124 * @param graph |
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125 */ |
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126 public BlockBegin(int bci, int blockID, Graph graph) { |
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127 super(CiKind.Illegal, INPUT_COUNT, SUCCESSOR_COUNT, graph); |
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128 this.blockID = blockID; |
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129 depthFirstNumber = -1; |
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130 linearScanNumber = -1; |
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131 setBCI(bci); |
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132 } |
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133 |
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134 /** |
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135 * Gets the list of predecessors of this block. |
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136 * @return the predecessor list |
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137 */ |
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138 @SuppressWarnings({ "unchecked", "rawtypes" }) |
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139 public List<Instruction> blockPredecessors() { |
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140 if (predecessors().size() == 1 && predecessors().get(0) == graph().root()) { |
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141 return Collections.EMPTY_LIST; |
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142 } else { |
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143 return (List) Collections.unmodifiableList(predecessors()); |
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144 } |
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145 } |
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146 |
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147 /** |
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148 * Sets the dominator block for this block. |
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149 * @param dominator the dominator for this block |
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150 */ |
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151 public void setDominator(BlockBegin dominator) { |
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152 this.dominator = dominator; |
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153 } |
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154 |
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155 /** |
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156 * Gets the depth first traversal number of this block. |
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157 * @return the depth first number |
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158 */ |
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159 public int depthFirstNumber() { |
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160 return depthFirstNumber; |
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161 } |
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162 |
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163 /** |
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164 * Gets the linear scan number of this block. |
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165 * @return the linear scan number |
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166 */ |
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167 public int linearScanNumber() { |
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168 return linearScanNumber; |
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169 } |
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170 |
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171 public void setDepthFirstNumber(int depthFirstNumber) { |
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172 assert depthFirstNumber >= 0; |
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173 this.depthFirstNumber = depthFirstNumber; |
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174 } |
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175 |
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176 public void setLinearScanNumber(int linearScanNumber) { |
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177 this.linearScanNumber = linearScanNumber; |
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178 } |
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179 |
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180 /** |
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181 * Set a flag on this block. |
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182 * @param flag the flag to set |
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183 */ |
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184 public void setBlockFlag(BlockFlag flag) { |
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185 blockFlags |= flag.mask; |
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186 } |
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187 |
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188 /** |
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189 * Clear a flag on this block. |
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190 * @param flag the flag to clear |
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191 */ |
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192 public void clearBlockFlag(BlockFlag flag) { |
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193 blockFlags &= ~flag.mask; |
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194 } |
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195 |
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196 public void copyBlockFlag(BlockBegin other, BlockFlag flag) { |
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197 setBlockFlag(flag, other.checkBlockFlag(flag)); |
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198 } |
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199 |
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200 /** |
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201 * Check whether this block has the specified flag set. |
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202 * @param flag the flag to test |
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203 * @return {@code true} if this block has the flag |
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204 */ |
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205 public boolean checkBlockFlag(BlockFlag flag) { |
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206 return (blockFlags & flag.mask) != 0; |
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207 } |
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208 |
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209 /** |
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210 * Iterate over this block, its exception handlers, and its successors, in that order. |
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211 * @param closure the closure to apply to each block |
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212 */ |
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213 public void iteratePreOrder(BlockClosure closure) { |
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214 // XXX: identity hash map might be too slow, consider a boolean array or a mark field |
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215 iterate(new IdentityHashMap<BlockBegin, BlockBegin>(), closure); |
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216 } |
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217 |
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218 /** |
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219 * Iterate over all blocks transitively reachable from this block. |
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220 * @param closure the closure to apply to each block |
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221 * @param predecessors {@code true} if also to include this blocks predecessors |
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222 */ |
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223 public void iterateAnyOrder(BlockClosure closure, boolean predecessors) { |
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224 IdentityHashMap<BlockBegin, BlockBegin> mark = new IdentityHashMap<BlockBegin, BlockBegin>(); |
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225 LinkedList<BlockBegin> queue = new LinkedList<BlockBegin>(); |
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226 queue.offer(this); |
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227 mark.put(this, this); |
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228 BlockBegin block; |
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229 while ((block = queue.poll()) != null) { |
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230 closure.apply(block); |
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231 |
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232 Instruction inst = block; |
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233 ArrayList<BlockBegin> excBlocks = new ArrayList<BlockBegin>(); |
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234 while (inst != null) { |
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235 if (inst instanceof ExceptionEdgeInstruction) { |
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236 excBlocks.add(((ExceptionEdgeInstruction) inst).exceptionEdge()); |
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237 } |
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238 inst = inst.next(); |
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239 } |
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240 while (excBlocks.remove(null)) { |
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241 // nothing |
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242 } |
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243 if (excBlocks.size() > 0) { |
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244 queueBlocks(queue, excBlocks, mark); |
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245 } |
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246 |
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247 queueBlocks(queue, block.end().blockSuccessors(), mark); |
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248 if (predecessors) { |
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249 queueBlockEnds(queue, block.blockPredecessors(), mark); |
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250 } |
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251 } |
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252 } |
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253 |
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254 private void queueBlocks(LinkedList<BlockBegin> queue, List<BlockBegin> list, IdentityHashMap<BlockBegin, BlockBegin> mark) { |
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255 if (list != null) { |
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256 for (BlockBegin b : list) { |
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257 if (!mark.containsKey(b)) { |
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258 queue.offer(b); |
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259 mark.put(b, b); |
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260 } |
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261 } |
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262 } |
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263 } |
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264 |
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265 private void queueBlockEnds(LinkedList<BlockBegin> queue, List<Instruction> list, IdentityHashMap<BlockBegin, BlockBegin> mark) { |
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266 if (list != null) { |
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267 for (Instruction end : list) { |
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268 BlockBegin b = end.block(); |
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269 if (!mark.containsKey(b)) { |
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270 queue.offer(b); |
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271 mark.put(b, b); |
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272 } |
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273 } |
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274 } |
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275 } |
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276 |
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277 /** |
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278 * Gets the bytecode index of this instruction. |
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279 * @return the bytecode index of this instruction |
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280 */ |
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281 public int bci() { |
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282 return bci; |
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283 } |
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284 |
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285 /** |
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286 * Sets the bytecode index of this instruction. |
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287 * @param bci the new bytecode index for this instruction |
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288 */ |
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289 public void setBCI(int bci) { |
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290 this.bci = bci; |
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291 } |
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292 |
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293 private void iterate(IdentityHashMap<BlockBegin, BlockBegin> mark, BlockClosure closure) { |
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294 if (!mark.containsKey(this)) { |
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295 mark.put(this, this); |
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296 closure.apply(this); |
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297 BlockEnd e = end(); |
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298 |
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299 Instruction inst = this; |
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300 ArrayList<BlockBegin> excBlocks = new ArrayList<BlockBegin>(); |
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301 while (inst != null) { |
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302 if (inst instanceof Invoke) { |
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303 excBlocks.add(((Invoke) inst).exceptionEdge()); |
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304 } else if (inst instanceof Throw) { |
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305 excBlocks.add(((Throw) inst).exceptionEdge()); |
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306 } |
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307 inst = inst.next(); |
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308 } |
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309 while (excBlocks.remove(null)) { |
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310 // nothing |
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311 } |
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312 if (excBlocks.size() > 0) { |
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313 iterateReverse(mark, closure, excBlocks); |
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314 } |
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315 |
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316 assert e != null : "block must have block end"; |
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317 iterateReverse(mark, closure, e.blockSuccessors()); |
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318 } |
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319 } |
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320 |
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321 private void iterateReverse(IdentityHashMap<BlockBegin, BlockBegin> mark, BlockClosure closure, List<BlockBegin> list) { |
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322 for (int i = list.size() - 1; i >= 0; i--) { |
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323 list.get(i).iterate(mark, closure); |
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324 } |
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325 } |
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326 |
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327 @Override |
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328 public void accept(ValueVisitor v) { |
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329 v.visitBlockBegin(this); |
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330 } |
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331 |
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332 public void mergeOrClone(FrameStateAccess newState, RiMethod method) { |
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333 FrameState existingState = stateBefore(); |
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334 |
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335 if (existingState == null) { |
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336 // copy state because it is modified |
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337 FrameState duplicate = newState.duplicate(bci()); |
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338 |
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339 if (C1XOptions.UseStackMapTableLiveness && method != null) { |
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340 // if a liveness map is available, use it to invalidate dead locals |
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341 CiBitMap[] livenessMap = method.livenessMap(); |
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342 if (livenessMap != null && bci() >= 0) { |
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343 assert bci() < livenessMap.length; |
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344 CiBitMap liveness = livenessMap[bci()]; |
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345 if (liveness != null) { |
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346 invalidateDeadLocals(duplicate, liveness); |
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347 } |
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348 } |
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349 } |
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350 |
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351 // if the block is a loop header, insert all necessary phis |
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352 if (isParserLoopHeader()) { |
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353 insertLoopPhis(duplicate); |
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354 } |
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355 |
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356 setStateBefore(duplicate); |
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357 } else { |
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358 if (!C1XOptions.AssumeVerifiedBytecode && !existingState.isCompatibleWith(newState)) { |
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359 // stacks or locks do not match--bytecodes would not verify |
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360 throw new CiBailout("stack or locks do not match"); |
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361 } |
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362 |
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363 assert existingState.localsSize() == newState.localsSize(); |
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364 assert existingState.stackSize() == newState.stackSize(); |
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365 |
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366 existingState.merge(this, newState); |
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367 } |
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368 } |
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369 |
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370 private void invalidateDeadLocals(FrameState newState, CiBitMap liveness) { |
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|
371 int max = newState.localsSize(); |
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|
372 assert max <= liveness.size(); |
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|
373 for (int i = 0; i < max; i++) { |
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Pull over of compiler from maxine repository.
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374 Value x = newState.localAt(i); |
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|
375 if (x != null) { |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
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|
376 if (!liveness.get(i)) { |
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Pull over of compiler from maxine repository.
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|
377 // invalidate the local if it is not live |
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|
378 newState.invalidateLocal(i); |
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|
379 } |
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Pull over of compiler from maxine repository.
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|
380 } |
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Pull over of compiler from maxine repository.
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|
381 } |
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Pull over of compiler from maxine repository.
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|
382 } |
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|
383 |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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|
384 private void insertLoopPhis(FrameState newState) { |
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385 int stackSize = newState.stackSize(); |
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386 for (int i = 0; i < stackSize; i++) { |
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|
387 // always insert phis for the stack |
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388 newState.setupPhiForStack(this, i); |
2507
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389 } |
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390 int localsSize = newState.localsSize(); |
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391 for (int i = 0; i < localsSize; i++) { |
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392 Value x = newState.localAt(i); |
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393 if (x != null) { |
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394 newState.setupPhiForLocal(this, i); |
2507
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395 } |
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396 } |
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|
397 } |
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|
398 |
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399 public boolean isParserLoopHeader() { |
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400 return checkBlockFlag(BlockFlag.ParserLoopHeader); |
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401 } |
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|
402 |
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403 public void setParserLoopHeader(boolean value) { |
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404 setBlockFlag(BlockFlag.ParserLoopHeader, value); |
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Pull over of compiler from maxine repository.
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405 } |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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|
406 |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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407 public boolean isLinearScanLoopHeader() { |
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Pull over of compiler from maxine repository.
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408 return checkBlockFlag(BlockFlag.LinearScanLoopHeader); |
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409 } |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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|
410 |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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|
411 public boolean isLinearScanLoopEnd() { |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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412 return checkBlockFlag(BlockFlag.LinearScanLoopEnd); |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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413 } |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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|
414 |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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changeset
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415 private void setBlockFlag(BlockFlag flag, boolean value) { |
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|
416 if (value) { |
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|
417 setBlockFlag(flag); |
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418 } else { |
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419 clearBlockFlag(flag); |
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diff
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420 } |
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diff
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|
421 } |
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|
422 |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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423 @Override |
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424 public String toString() { |
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425 StringBuilder builder = new StringBuilder(); |
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426 builder.append("block #"); |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
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427 builder.append(blockID); |
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428 builder.append(","); |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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|
429 builder.append(depthFirstNumber); |
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parents:
diff
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|
430 builder.append(" ["); |
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diff
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|
431 boolean hasFlag = false; |
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432 for (BlockFlag f : BlockFlag.values()) { |
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433 if (checkBlockFlag(f)) { |
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|
434 if (hasFlag) { |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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diff
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|
435 builder.append(' '); |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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diff
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|
436 } |
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Pull over of compiler from maxine repository.
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|
437 builder.append(f.name()); |
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|
438 hasFlag = true; |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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diff
changeset
|
439 } |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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diff
changeset
|
440 } |
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Pull over of compiler from maxine repository.
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changeset
|
441 |
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Pull over of compiler from maxine repository.
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changeset
|
442 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>
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2616
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443 if (end() != null) { |
2507
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444 builder.append(" -> "); |
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changeset
|
445 boolean hasSucc = false; |
2621
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Lukas Stadler <lukas.stadler@jku.at>
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446 for (BlockBegin s : end().blockSuccessors()) { |
2507
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|
447 if (hasSucc) { |
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|
448 builder.append(", "); |
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diff
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|
449 } |
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|
450 builder.append("#"); |
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diff
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|
451 builder.append(s.blockID); |
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diff
changeset
|
452 hasSucc = true; |
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parents:
diff
changeset
|
453 } |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
454 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
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diff
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|
455 return builder.toString(); |
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Pull over of compiler from maxine repository.
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parents:
diff
changeset
|
456 } |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
457 |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
458 /** |
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parents:
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|
459 * Get the number of successors. |
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Pull over of compiler from maxine repository.
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parents:
diff
changeset
|
460 * @return the number of successors |
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Pull over of compiler from maxine repository.
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parents:
diff
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|
461 */ |
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Pull over of compiler from maxine repository.
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diff
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|
462 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
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|
463 return end().blockSuccessorCount(); |
2507
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|
464 } |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
465 |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
466 /** |
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|
467 * Get the successor at a certain position. |
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|
468 * @param i the position |
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|
469 * @return the successor |
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|
470 */ |
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diff
changeset
|
471 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
|
472 return end().blockSuccessor(i); |
2507
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diff
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|
473 } |
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diff
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|
474 |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
475 /** |
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diff
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|
476 * Get the number of predecessors. |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
477 * @return the number of predecessors |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
478 */ |
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Pull over of compiler from maxine repository.
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diff
changeset
|
479 public int numberOfPreds() { |
2707
7ed72769d51a
exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
2677
diff
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|
480 // ignore the graph root |
7ed72769d51a
exception handling related changes:
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parents:
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diff
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|
481 if (predecessors().size() == 1 && predecessors().get(0) == graph().root()) { |
7ed72769d51a
exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
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diff
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|
482 return 0; |
7ed72769d51a
exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
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diff
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|
483 } else { |
7ed72769d51a
exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
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diff
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|
484 return predecessors().size(); |
7ed72769d51a
exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
2677
diff
changeset
|
485 } |
2507
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Pull over of compiler from maxine repository.
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diff
changeset
|
486 } |
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Pull over of compiler from maxine repository.
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parents:
diff
changeset
|
487 |
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Pull over of compiler from maxine repository.
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parents:
diff
changeset
|
488 /** |
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diff
changeset
|
489 * @return the label associated with the block, used by the LIR |
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parents:
diff
changeset
|
490 */ |
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parents:
diff
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|
491 public Label label() { |
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parents:
diff
changeset
|
492 return lirBlock().label; |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
493 } |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
494 |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
495 public LIRList lir() { |
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parents:
diff
changeset
|
496 return lirBlock().lir(); |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
497 } |
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Pull over of compiler from maxine repository.
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parents:
diff
changeset
|
498 |
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parents:
diff
changeset
|
499 public LIRBlock lirBlock() { |
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|
500 return lirBlock; |
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Pull over of compiler from maxine repository.
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501 } |
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502 |
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503 public Instruction predAt(int j) { |
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504 return (Instruction) predecessors().get(j); |
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505 } |
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|
506 |
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|
507 |
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508 public boolean isPredecessor(Instruction block) { |
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509 return predecessors().contains(block); |
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510 } |
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511 |
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Pull over of compiler from maxine repository.
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512 public void printWithoutPhis(LogStream out) { |
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|
513 // print block id |
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514 BlockEnd end = end(); |
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515 out.print("B").print(blockID).print(" "); |
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|
516 |
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parents:
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changeset
|
517 // print flags |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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518 StringBuilder sb = new StringBuilder(8); |
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Pull over of compiler from maxine repository.
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519 if (isParserLoopHeader()) { |
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520 sb.append("LH"); |
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parents:
diff
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|
521 } |
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522 if (sb.length() != 0) { |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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523 out.print('(').print(sb.toString()).print(')'); |
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parents:
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|
524 } |
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|
525 |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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526 // print block bci range |
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c1a9bf38da28
Removed bci from the Instruction class.
Thomas Wuerthinger <thomas@wuerthinger.net>
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527 out.print('[').print(-1).print(", ").print(-1).print(']'); |
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|
528 |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
529 // print block successors |
2581
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added GraalGraph to classpath, Node as superclass of Value
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diff
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530 if (end != null && end.blockSuccessors().size() > 0) { |
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Pull over of compiler from maxine repository.
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531 out.print(" ."); |
2581
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532 for (BlockBegin successor : end.blockSuccessors()) { |
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533 out.print(" B").print(successor.blockID); |
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534 } |
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|
535 } |
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Thomas Wuerthinger <thomas@wuerthinger.net>
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|
536 |
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|
537 // print predecessors |
2581
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added GraalGraph to classpath, Node as superclass of Value
Lukas Stadler <lukas.stadler@jku.at>
parents:
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538 if (!blockPredecessors().isEmpty()) { |
2507
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539 out.print(" pred:"); |
2707
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2677
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|
540 for (Instruction pred : blockPredecessors()) { |
7ed72769d51a
exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
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diff
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|
541 out.print(" B").print(pred.block().blockID); |
2507
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|
542 } |
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diff
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|
543 } |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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diff
changeset
|
544 } |
9ec15d6914ca
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Thomas Wuerthinger <thomas@wuerthinger.net>
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changeset
|
545 |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
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|
546 @Override |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
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|
547 public void print(LogStream out) { |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
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|
548 |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
549 printWithoutPhis(out); |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
550 |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
551 // print phi functions |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
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|
552 boolean hasPhisInLocals = false; |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
553 boolean hasPhisOnStack = false; |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
554 |
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
|
555 if (end() != null && end().stateAfter() != null) { |
2507
9ec15d6914ca
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parents:
diff
changeset
|
556 FrameState state = stateBefore(); |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
557 |
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parents:
diff
changeset
|
558 int i = 0; |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
559 while (!hasPhisOnStack && i < state.stackSize()) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
560 Value value = state.stackAt(i); |
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
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561 hasPhisOnStack = isPhiAtBlock(value); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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562 if (value != null && !value.isIllegal()) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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diff
changeset
|
563 i += value.kind.sizeInSlots(); |
9ec15d6914ca
Pull over of compiler from maxine repository.
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parents:
diff
changeset
|
564 } else { |
9ec15d6914ca
Pull over of compiler from maxine repository.
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parents:
diff
changeset
|
565 i++; |
9ec15d6914ca
Pull over of compiler from maxine repository.
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parents:
diff
changeset
|
566 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
567 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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diff
changeset
|
568 |
2564
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2516
diff
changeset
|
569 for (i = 0; !hasPhisInLocals && i < state.localsSize();) { |
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2516
diff
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|
570 Value value = state.localAt(i); |
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
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|
571 hasPhisInLocals = isPhiAtBlock(value); |
274360f98f97
Remove inlining (2nd part) removed IRScope
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parents:
2516
diff
changeset
|
572 // also ignore illegal HiWords |
274360f98f97
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Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2516
diff
changeset
|
573 if (value != null && !value.isIllegal()) { |
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2516
diff
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|
574 i += value.kind.sizeInSlots(); |
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2516
diff
changeset
|
575 } else { |
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2516
diff
changeset
|
576 i++; |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
577 } |
2564
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2516
diff
changeset
|
578 } |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
579 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
580 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
581 // print values in locals |
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Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
582 if (hasPhisInLocals) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
583 out.println(); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
584 out.println("Locals:"); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
585 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
586 FrameState state = stateBefore(); |
2564
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2516
diff
changeset
|
587 int i = 0; |
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
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2516
diff
changeset
|
588 while (i < state.localsSize()) { |
274360f98f97
Remove inlining (2nd part) removed IRScope
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parents:
2516
diff
changeset
|
589 Value value = state.localAt(i); |
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2516
diff
changeset
|
590 if (value != null) { |
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2516
diff
changeset
|
591 out.println(stateString(i, value)); |
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2516
diff
changeset
|
592 // also ignore illegal HiWords |
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2516
diff
changeset
|
593 i += value.isIllegal() ? 1 : value.kind.sizeInSlots(); |
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2516
diff
changeset
|
594 } else { |
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2516
diff
changeset
|
595 i++; |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
596 } |
2564
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2516
diff
changeset
|
597 } |
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2516
diff
changeset
|
598 out.println(); |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
599 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
600 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
601 // print values on stack |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
602 if (hasPhisOnStack) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
603 out.println(); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
604 out.println("Stack:"); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
605 int i = 0; |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
606 while (i < stateBefore().stackSize()) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
607 Value value = stateBefore().stackAt(i); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
608 if (value != null) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
609 out.println(stateString(i, value)); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
610 i += value.kind.sizeInSlots(); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
611 } else { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
612 i++; |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
613 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
614 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
615 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
616 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
617 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
618 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
619 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
620 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
621 /** |
9ec15d6914ca
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
622 * 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
|
623 * |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
624 * @param value the instruction to test |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
625 * @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
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626 * @return {@code true} if {@code value} is a phi and its join block is {@code block} |
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627 */ |
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628 private boolean isPhiAtBlock(Value value) { |
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629 return value instanceof Phi && ((Phi) value).block() == this; |
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630 } |
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631 |
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632 |
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633 /** |
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634 * Formats a given instruction as a value in a {@linkplain FrameState frame state}. If the instruction is a phi defined at a given |
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635 * block, its {@linkplain Phi#phiInputCount() inputs} are appended to the returned string. |
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636 * |
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637 * @param index the index of the value in the frame state |
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638 * @param value the frame state value |
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639 * @param block if {@code value} is a phi, then its inputs are formatted if {@code block} is its |
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640 * {@linkplain Phi#block() join point} |
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641 * @return the instruction representation as a string |
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642 */ |
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643 public String stateString(int index, Value value) { |
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644 StringBuilder sb = new StringBuilder(30); |
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645 sb.append(String.format("%2d %s", index, Util.valueString(value))); |
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646 if (value instanceof Phi) { |
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647 Phi phi = (Phi) value; |
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648 // print phi operands |
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649 if (phi.block() == this) { |
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650 sb.append(" ["); |
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651 for (int j = 0; j < phi.phiInputCount(); j++) { |
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652 sb.append(' '); |
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653 Value operand = phi.inputAt(j); |
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654 if (operand != null) { |
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655 sb.append(Util.valueString(operand)); |
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656 } else { |
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657 sb.append("NULL"); |
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658 } |
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659 } |
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660 sb.append("] "); |
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661 } |
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662 } |
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663 if (value != null && value.hasSubst()) { |
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664 sb.append("alias ").append(Util.valueString(value.subst())); |
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665 } |
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666 return sb.toString(); |
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667 } |
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668 |
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669 @Override |
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670 public String shortName() { |
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671 return "BlockBegin #" + blockID; |
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672 } |
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673 |
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674 /** |
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675 * Iterates over all successors of this block: successors of the end node and exception handler. |
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676 */ |
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677 public void allSuccessorsDo(boolean backwards, BlockClosure closure) { |
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678 if (backwards) { |
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679 for (int i = numberOfSux() - 1; i >= 0; i--) { |
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680 closure.apply(suxAt(i)); |
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681 } |
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682 } else { |
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683 for (int i = 0; i < numberOfSux(); i++) { |
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684 closure.apply(suxAt(i)); |
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685 } |
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686 } |
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687 for (Instruction x = next(); x != null; x = x.next()) { |
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688 if (x instanceof ExceptionEdgeInstruction && ((ExceptionEdgeInstruction) x).exceptionEdge() != null) { |
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689 closure.apply(((ExceptionEdgeInstruction) x).exceptionEdge()); |
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690 } |
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691 } |
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692 } |
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693 |
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694 public void verifyPredecessors() { |
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695 for (int i = 0; i < numberOfPreds(); i++) { |
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696 predAt(i); |
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697 } |
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698 |
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699 } |
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700 |
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701 |
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702 } |