Mercurial > hg > graal-compiler
annotate graal/GraalCompiler/src/com/sun/c1x/lir/LIRBlock.java @ 2822:530366123e46
Invoke is a block end
author | Gilles Duboscq <gilles.duboscq@oracle.com> |
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date | Fri, 27 May 2011 15:41:10 +0200 |
parents | aeccd2af4e9e |
children | 2af109bec0c0 |
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.c1x.value.*; |
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33 import com.sun.cri.ci.*; |
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34 |
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35 /** |
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36 * The {@code LIRBlock} class definition. |
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37 */ |
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38 public final class LIRBlock { |
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39 |
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40 public final Label label = new Label(); |
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41 private LIRList lir; |
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42 private final int blockID; |
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43 private FrameState lastState; |
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44 private List<Instruction> instructions = new ArrayList<Instruction>(4); |
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45 private List<LIRBlock> predecessors = new ArrayList<LIRBlock>(4); |
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46 private List<LIRBlock> successors = new ArrayList<LIRBlock>(4); |
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47 private List<LIRBlock> exceptionHandlerSuccessors = new ArrayList<LIRBlock>(4); |
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48 |
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49 /** |
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50 * Bit map specifying which {@linkplain OperandPool operands} are live upon entry to this block. |
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51 * These are values used in this block or any of its successors where such value are not defined |
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52 * in this block. |
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53 * The bit index of an operand is its {@linkplain OperandPool#operandNumber(com.sun.cri.ci.CiValue) operand number}. |
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54 */ |
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55 public CiBitMap liveIn; |
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56 |
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57 /** |
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58 * Bit map specifying which {@linkplain OperandPool operands} are live upon exit from this block. |
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59 * These are values used in a successor block that are either defined in this block or were live |
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60 * upon entry to this block. |
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61 * The bit index of an operand is its {@linkplain OperandPool#operandNumber(com.sun.cri.ci.CiValue) operand number}. |
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62 */ |
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63 public CiBitMap liveOut; |
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64 |
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65 /** |
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66 * Bit map specifying which {@linkplain OperandPool operands} are used (before being defined) in this block. |
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67 * That is, these are the values that are live upon entry to the block. |
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68 * The bit index of an operand is its {@linkplain OperandPool#operandNumber(com.sun.cri.ci.CiValue) operand number}. |
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69 */ |
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70 public CiBitMap liveGen; |
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71 |
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72 /** |
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73 * Bit map specifying which {@linkplain OperandPool operands} are defined/overwritten in this block. |
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74 * The bit index of an operand is its {@linkplain OperandPool#operandNumber(com.sun.cri.ci.CiValue) operand number}. |
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75 */ |
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76 public CiBitMap liveKill; |
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77 |
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78 private int firstLirInstructionID; |
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79 private int lastLirInstructionID; |
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80 public int blockEntryPco; |
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81 |
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82 public List<LIRBlock> getExceptionHandlerSuccessors() { |
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83 return exceptionHandlerSuccessors; |
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84 } |
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85 |
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86 public LIRBlock(int blockID) { |
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87 this.blockID = blockID; |
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88 loopIndex = -1; |
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89 linearScanNumber = blockID; |
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90 } |
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91 |
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92 public List<Instruction> getInstructions() { |
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93 return instructions; |
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94 } |
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95 |
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96 public int firstLirInstructionId() { |
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97 return firstLirInstructionID; |
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98 } |
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99 |
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100 public void setFirstLirInstructionId(int firstLirInstructionId) { |
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101 this.firstLirInstructionID = firstLirInstructionId; |
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102 } |
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103 |
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104 public int lastLirInstructionId() { |
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105 return lastLirInstructionID; |
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106 } |
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107 |
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108 public void setLastLirInstructionId(int lastLirInstructionId) { |
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109 this.lastLirInstructionID = lastLirInstructionId; |
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110 } |
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112 public int loopDepth; | |
113 | |
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114 public LIRList lir() { |
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115 return lir; |
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116 } |
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117 |
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118 public void setLir(LIRList lir) { |
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119 this.lir = lir; |
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120 } |
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121 |
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122 public void setBlockEntryPco(int codePos) { |
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123 this.blockEntryPco = codePos; |
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124 } |
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125 |
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126 public void printWithoutPhis(LogStream out) { |
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127 out.println("LIR Block " + blockID()); |
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128 } |
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129 |
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130 public int blockID() { |
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131 return blockID; |
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132 } |
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133 |
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134 public int numberOfPreds() { |
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135 return predecessors.size(); |
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136 } |
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137 |
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138 public int numberOfSux() { |
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139 return successors.size(); |
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140 } |
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141 |
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142 public boolean isPredecessor(LIRBlock block) { |
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143 return predecessors.contains(block); |
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144 } |
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145 |
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146 public LIRBlock predAt(int i) { |
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147 return predecessors.get(i); |
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148 } |
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149 |
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150 public LIRBlock suxAt(int i) { |
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151 return successors.get(i); |
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152 } |
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153 |
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154 public List<LIRBlock> blockSuccessors() { |
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155 return successors; |
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156 } |
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157 |
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158 @Override |
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159 public String toString() { |
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160 return "B" + blockID(); |
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161 } |
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162 |
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163 public List<LIRBlock> blockPredecessors() { |
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164 return predecessors; |
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165 } |
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166 |
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167 public int loopDepth() { |
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168 // TODO(tw): Set correct loop depth. |
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169 return 0; |
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170 } |
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171 |
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172 public int loopIndex() { |
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173 return loopIndex; |
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174 } |
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175 |
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176 public void setLoopIndex(int v) { |
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177 loopIndex = v; |
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178 } |
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179 |
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180 public void setLoopDepth(int v) { |
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181 this.loopDepth = v; |
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182 } |
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183 |
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184 private int loopIndex; |
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185 |
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186 public Label label() { |
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187 return label; |
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188 } |
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189 |
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190 private int linearScanNumber = -1; |
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191 private boolean linearScanLoopEnd; |
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192 private boolean linearScanLoopHeader; |
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193 private boolean exceptionEntry; |
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194 private boolean backwardBranchTarget; |
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195 |
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196 |
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197 public void setExceptionEntry(boolean b) { |
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198 this.exceptionEntry = b; |
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199 } |
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200 |
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201 public boolean isExceptionEntry() { |
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202 return exceptionEntry; |
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203 } |
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204 |
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205 public void setBackwardBranchTarget(boolean b) { |
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206 this.backwardBranchTarget = b; |
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207 } |
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208 |
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209 public boolean backwardBranchTarget() { |
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210 return backwardBranchTarget; |
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211 } |
2718
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212 |
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213 public void setLinearScanNumber(int v) { |
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214 linearScanNumber = v; |
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215 } |
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216 |
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217 public int linearScanNumber() { |
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218 return linearScanNumber; |
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219 } |
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220 |
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221 public void setLinearScanLoopEnd() { |
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222 linearScanLoopEnd = true; |
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223 } |
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224 |
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225 public boolean isLinearScanLoopEnd() { |
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226 return linearScanLoopEnd; |
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227 } |
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228 |
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229 public void setLinearScanLoopHeader() { |
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230 this.linearScanLoopHeader = true; |
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231 } |
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232 |
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233 public boolean isLinearScanLoopHeader() { |
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234 return linearScanLoopHeader; |
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235 } |
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236 |
2761
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237 public void replaceWith(LIRBlock other) { |
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238 for (LIRBlock pred : predecessors) { |
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239 Util.replaceAllInList(this, other, pred.successors); |
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240 } |
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241 for (int i = 0; i < other.predecessors.size(); ++i) { |
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242 if (other.predecessors.get(i) == this) { |
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243 other.predecessors.remove(i); |
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244 other.predecessors.addAll(i, this.predecessors); |
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245 } |
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246 } |
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Re-enabled CFG optimization (now only on LIRBlock data structure).
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247 successors.clear(); |
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248 predecessors.clear(); |
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249 } |
2777
3e4d992fd312
towards replacing computelinearscanorder with scheduler.
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250 |
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251 public void setInstructions(List<Instruction> list) { |
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252 instructions = list; |
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253 } |
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93ec3f067420
Changed CriticalEdgeFinder to use LIRBlock.
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254 |
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255 public void substituteSuccessor(LIRBlock target, LIRBlock newSucc) { |
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256 for (int i = 0; i < successors.size(); ++i) { |
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257 if (successors.get(i) == target) { |
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Changed CriticalEdgeFinder to use LIRBlock.
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258 successors.set(i, newSucc); |
2789
aeccd2af4e9e
Fixes around critical edge split and placeholder removal after goto removal.
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259 break; |
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Changed CriticalEdgeFinder to use LIRBlock.
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260 } |
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Changed CriticalEdgeFinder to use LIRBlock.
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261 } |
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Changed CriticalEdgeFinder to use LIRBlock.
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262 } |
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Changed CriticalEdgeFinder to use LIRBlock.
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263 |
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Changed CriticalEdgeFinder to use LIRBlock.
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264 public void substitutePredecessor(LIRBlock source, LIRBlock newSucc) { |
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265 for (int i = 0; i < predecessors.size(); ++i) { |
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266 if (predecessors.get(i) == source) { |
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Changed CriticalEdgeFinder to use LIRBlock.
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267 predecessors.set(i, newSucc); |
2789
aeccd2af4e9e
Fixes around critical edge split and placeholder removal after goto removal.
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268 break; |
2779
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Changed CriticalEdgeFinder to use LIRBlock.
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269 } |
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Changed CriticalEdgeFinder to use LIRBlock.
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270 } |
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Changed CriticalEdgeFinder to use LIRBlock.
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271 } |
2783
9bc0c2eb00d6
Made graph builder removal of BlockBegin work.
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272 |
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273 public void setLastState(FrameState fs) { |
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274 lastState = fs; |
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Made graph builder removal of BlockBegin work.
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275 } |
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Made graph builder removal of BlockBegin work.
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276 |
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Made graph builder removal of BlockBegin work.
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277 public FrameState lastState() { |
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278 return lastState; |
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Made graph builder removal of BlockBegin work.
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279 } |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
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280 } |