Mercurial > hg > truffle
annotate graal/GraalCompiler/src/com/sun/c1x/lir/LIRBlock.java @ 2782:915456e4959e
Merge
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 25 May 2011 11:15:24 +0200 |
parents | 93ec3f067420 |
children | 9bc0c2eb00d6 |
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.lir; |
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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.max.asm.*; |
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28 import com.sun.c1x.alloc.*; |
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29 import com.sun.c1x.debug.*; |
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30 import com.sun.c1x.ir.*; |
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31 import com.sun.c1x.util.*; |
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32 import com.sun.cri.ci.*; |
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33 |
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34 /** |
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35 * The {@code LIRBlock} class definition. |
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36 */ |
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37 public final class LIRBlock { |
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38 |
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39 public final Label label = new Label(); |
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40 private LIRList lir; |
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41 private final int blockID; |
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42 private List<Instruction> instructions = new ArrayList<Instruction>(4); |
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43 private List<LIRBlock> predecessors = new ArrayList<LIRBlock>(4); |
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44 private List<LIRBlock> successors = new ArrayList<LIRBlock>(4); |
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45 private List<LIRBlock> exceptionHandlerSuccessors = new ArrayList<LIRBlock>(4); |
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46 |
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47 /** |
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48 * Bit map specifying which {@linkplain OperandPool operands} are live upon entry to this block. |
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49 * These are values used in this block or any of its successors where such value are not defined |
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50 * in this block. |
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51 * The bit index of an operand is its {@linkplain OperandPool#operandNumber(com.sun.cri.ci.CiValue) operand number}. |
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52 */ |
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53 public CiBitMap liveIn; |
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54 |
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55 /** |
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56 * Bit map specifying which {@linkplain OperandPool operands} are live upon exit from this block. |
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57 * These are values used in a successor block that are either defined in this block or were live |
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58 * upon entry to this block. |
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59 * The bit index of an operand is its {@linkplain OperandPool#operandNumber(com.sun.cri.ci.CiValue) operand number}. |
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60 */ |
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61 public CiBitMap liveOut; |
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62 |
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63 /** |
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64 * Bit map specifying which {@linkplain OperandPool operands} are used (before being defined) in this block. |
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65 * That is, these are the values that are live upon entry to the block. |
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66 * The bit index of an operand is its {@linkplain OperandPool#operandNumber(com.sun.cri.ci.CiValue) operand number}. |
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67 */ |
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68 public CiBitMap liveGen; |
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69 |
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70 /** |
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71 * Bit map specifying which {@linkplain OperandPool operands} are defined/overwritten in this block. |
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72 * The bit index of an operand is its {@linkplain OperandPool#operandNumber(com.sun.cri.ci.CiValue) operand number}. |
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73 */ |
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74 public CiBitMap liveKill; |
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75 |
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76 private int firstLirInstructionID; |
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77 private int lastLirInstructionID; |
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78 public int blockEntryPco; |
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79 |
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80 public List<LIRBlock> getExceptionHandlerSuccessors() { |
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81 return exceptionHandlerSuccessors; |
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82 } |
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83 |
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84 public LIRBlock(int blockID) { |
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85 this.blockID = blockID; |
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86 loopIndex = -1; |
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87 linearScanNumber = blockID; |
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88 } |
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89 |
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90 public List<Instruction> getInstructions() { |
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91 return instructions; |
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92 } |
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93 |
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94 public int firstLirInstructionId() { |
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95 return firstLirInstructionID; |
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96 } |
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97 |
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98 public void setFirstLirInstructionId(int firstLirInstructionId) { |
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99 this.firstLirInstructionID = firstLirInstructionId; |
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100 } |
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101 |
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102 public int lastLirInstructionId() { |
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103 return lastLirInstructionID; |
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104 } |
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105 |
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106 public void setLastLirInstructionId(int lastLirInstructionId) { |
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107 this.lastLirInstructionID = lastLirInstructionId; |
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108 } |
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110 public int loopDepth; | |
111 | |
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112 public LIRList lir() { |
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113 return lir; |
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114 } |
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115 |
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116 public void setLir(LIRList lir) { |
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117 this.lir = lir; |
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118 } |
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119 |
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120 public void setBlockEntryPco(int codePos) { |
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121 this.blockEntryPco = codePos; |
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122 } |
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123 |
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124 public void printWithoutPhis(LogStream out) { |
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125 out.println("LIR Block " + blockID()); |
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126 } |
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127 |
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128 public int blockID() { |
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129 return blockID; |
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130 } |
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131 |
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132 public int numberOfPreds() { |
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133 return predecessors.size(); |
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134 } |
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135 |
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136 public int numberOfSux() { |
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137 return successors.size(); |
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138 } |
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139 |
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140 public boolean isPredecessor(LIRBlock block) { |
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141 return predecessors.contains(block); |
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142 } |
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143 |
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144 public LIRBlock predAt(int i) { |
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145 return predecessors.get(i); |
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146 } |
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147 |
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148 public LIRBlock suxAt(int i) { |
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149 return successors.get(i); |
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150 } |
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151 |
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152 public List<LIRBlock> blockSuccessors() { |
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153 return successors; |
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154 } |
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155 |
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156 @Override |
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157 public String toString() { |
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158 return "B" + blockID(); |
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159 } |
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160 |
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161 public List<LIRBlock> blockPredecessors() { |
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162 return predecessors; |
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163 } |
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164 |
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165 public int loopDepth() { |
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166 // TODO(tw): Set correct loop depth. |
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167 return 0; |
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168 } |
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169 |
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170 public int loopIndex() { |
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171 return loopIndex; |
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172 } |
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173 |
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174 public void setLoopIndex(int v) { |
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175 loopIndex = v; |
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176 } |
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177 |
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178 public void setLoopDepth(int v) { |
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179 this.loopDepth = v; |
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180 } |
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181 |
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182 private int loopIndex; |
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183 |
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184 public Label label() { |
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185 return label; |
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186 } |
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187 |
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188 private int linearScanNumber = -1; |
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189 private boolean linearScanLoopEnd; |
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190 private boolean linearScanLoopHeader; |
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191 private boolean exceptionEntry; |
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192 private boolean backwardBranchTarget; |
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193 |
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194 |
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195 public void setExceptionEntry(boolean b) { |
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196 this.exceptionEntry = b; |
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197 } |
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198 |
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199 public boolean isExceptionEntry() { |
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200 return exceptionEntry; |
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201 } |
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202 |
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203 public void setBackwardBranchTarget(boolean b) { |
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204 this.backwardBranchTarget = b; |
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205 } |
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206 |
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207 public boolean backwardBranchTarget() { |
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208 return backwardBranchTarget; |
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209 } |
2718
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210 |
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211 public void setLinearScanNumber(int v) { |
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212 linearScanNumber = v; |
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213 } |
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214 |
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215 public int linearScanNumber() { |
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216 return linearScanNumber; |
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217 } |
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218 |
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219 public void setLinearScanLoopEnd() { |
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220 linearScanLoopEnd = true; |
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221 } |
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222 |
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223 public boolean isLinearScanLoopEnd() { |
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224 return linearScanLoopEnd; |
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225 } |
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226 |
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227 public void setLinearScanLoopHeader() { |
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228 this.linearScanLoopHeader = true; |
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229 } |
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230 |
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231 public boolean isLinearScanLoopHeader() { |
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232 return linearScanLoopHeader; |
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233 } |
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234 |
2761
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235 public void replaceWith(LIRBlock other) { |
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236 for (LIRBlock pred : predecessors) { |
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237 Util.replaceAllInList(this, other, pred.successors); |
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238 } |
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239 for (int i = 0; i < other.predecessors.size(); ++i) { |
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240 if (other.predecessors.get(i) == this) { |
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241 other.predecessors.remove(i); |
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242 other.predecessors.addAll(i, this.predecessors); |
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Re-enabled CFG optimization (now only on LIRBlock data structure).
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243 } |
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Re-enabled CFG optimization (now only on LIRBlock data structure).
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244 } |
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Re-enabled CFG optimization (now only on LIRBlock data structure).
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245 successors.clear(); |
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Re-enabled CFG optimization (now only on LIRBlock data structure).
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246 predecessors.clear(); |
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Re-enabled CFG optimization (now only on LIRBlock data structure).
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247 } |
2777
3e4d992fd312
towards replacing computelinearscanorder with scheduler.
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248 |
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towards replacing computelinearscanorder with scheduler.
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249 public void setInstructions(List<Instruction> list) { |
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towards replacing computelinearscanorder with scheduler.
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250 instructions = list; |
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towards replacing computelinearscanorder with scheduler.
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251 } |
2779
93ec3f067420
Changed CriticalEdgeFinder to use LIRBlock.
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252 |
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Changed CriticalEdgeFinder to use LIRBlock.
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253 public void substituteSuccessor(LIRBlock target, LIRBlock newSucc) { |
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Changed CriticalEdgeFinder to use LIRBlock.
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254 for (int i = 0; i < successors.size(); ++i) { |
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Changed CriticalEdgeFinder to use LIRBlock.
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255 if (successors.get(i) == target) { |
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Changed CriticalEdgeFinder to use LIRBlock.
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256 successors.set(i, newSucc); |
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Changed CriticalEdgeFinder to use LIRBlock.
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257 } |
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Changed CriticalEdgeFinder to use LIRBlock.
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258 } |
93ec3f067420
Changed CriticalEdgeFinder to use LIRBlock.
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259 } |
93ec3f067420
Changed CriticalEdgeFinder to use LIRBlock.
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260 |
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Changed CriticalEdgeFinder to use LIRBlock.
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261 public void substitutePredecessor(LIRBlock source, LIRBlock newSucc) { |
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Changed CriticalEdgeFinder to use LIRBlock.
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262 for (int i = 0; i < predecessors.size(); ++i) { |
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Changed CriticalEdgeFinder to use LIRBlock.
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263 if (predecessors.get(i) == source) { |
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Changed CriticalEdgeFinder to use LIRBlock.
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264 predecessors.set(i, newSucc); |
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Changed CriticalEdgeFinder to use LIRBlock.
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265 } |
93ec3f067420
Changed CriticalEdgeFinder to use LIRBlock.
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266 } |
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Changed CriticalEdgeFinder to use LIRBlock.
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267 } |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
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268 } |