Mercurial > hg > graal-jvmci-8
annotate graal/GraalCompiler/src/com/sun/c1x/graph/IR.java @ 2868:6d24c27902a2
turned inlining into a phase, some node cloning fixes, added NodeWorklist
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Tue, 07 Jun 2011 19:19:14 +0200 |
parents | 5c545fef2c81 |
children | fc75fd3fa5e4 |
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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.graph; |
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24 |
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25 import java.lang.reflect.*; |
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26 import java.util.*; |
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27 |
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28 import com.oracle.graal.graph.*; |
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29 import com.oracle.max.graal.schedule.*; |
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30 import com.sun.c1x.*; |
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31 import com.sun.c1x.debug.*; |
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32 import com.sun.c1x.ir.*; |
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33 import com.sun.c1x.lir.*; |
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34 import com.sun.c1x.observer.*; |
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35 import com.sun.c1x.value.*; |
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36 import com.sun.cri.ci.*; |
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37 import com.sun.cri.ri.*; |
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38 |
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39 /** |
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40 * This class implements the overall container for the HIR (high-level IR) graph |
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41 * and directs its construction, optimization, and finalization. |
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42 */ |
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43 public class IR { |
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44 |
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45 /** |
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46 * The compilation associated with this IR. |
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47 */ |
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48 public final C1XCompilation compilation; |
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49 |
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50 /** |
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51 * The start block of this IR. |
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52 */ |
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53 public LIRBlock startBlock; |
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54 |
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55 /** |
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56 * The linear-scan ordered list of blocks. |
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57 */ |
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58 private List<LIRBlock> orderedBlocks; |
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59 |
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60 /** |
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61 * Creates a new IR instance for the specified compilation. |
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62 * @param compilation the compilation |
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63 */ |
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64 public IR(C1XCompilation compilation) { |
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65 this.compilation = compilation; |
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66 } |
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67 |
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68 public Map<Node, LIRBlock> valueToBlock; |
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69 |
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70 /** |
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71 * Builds the graph, optimizes it, and computes the linear scan block order. |
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72 */ |
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73 public void build() { |
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74 if (C1XOptions.PrintTimers) { |
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75 C1XTimers.HIR_CREATE.start(); |
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76 } |
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77 |
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78 buildGraph(); |
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79 |
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80 if (C1XOptions.PrintTimers) { |
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81 C1XTimers.HIR_CREATE.stop(); |
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82 C1XTimers.HIR_OPTIMIZE.start(); |
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83 } |
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84 |
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85 Graph graph = compilation.graph; |
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86 |
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87 // Split critical edges. |
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88 List<Node> nodes = graph.getNodes(); |
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89 for (int i = 0; i < nodes.size(); ++i) { |
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90 Node n = nodes.get(i); |
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91 if (Schedule.trueSuccessorCount(n) > 1) { |
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92 for (int j = 0; j < n.successors().size(); ++j) { |
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93 Node succ = n.successors().get(j); |
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94 if (Schedule.truePredecessorCount(succ) > 1) { |
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95 Anchor a = new Anchor(graph); |
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96 a.successors().setAndClear(1, n, j); |
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97 n.successors().set(j, a); |
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98 } |
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99 } |
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100 } |
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101 } |
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102 |
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103 Schedule schedule = new Schedule(graph); |
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104 List<Block> blocks = schedule.getBlocks(); |
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105 List<LIRBlock> lirBlocks = new ArrayList<LIRBlock>(); |
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106 Map<Block, LIRBlock> map = new HashMap<Block, LIRBlock>(); |
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107 for (Block b : blocks) { |
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108 LIRBlock block = new LIRBlock(b.blockID()); |
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109 map.put(b, block); |
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110 block.setInstructions(b.getInstructions()); |
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111 block.setLinearScanNumber(b.blockID()); |
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112 |
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113 block.setFirstInstruction(b.firstNode()); |
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114 block.setLastInstruction(b.lastNode()); |
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115 lirBlocks.add(block); |
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116 } |
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117 |
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118 for (Block b : blocks) { |
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119 for (Block succ : b.getSuccessors()) { |
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120 map.get(b).blockSuccessors().add(map.get(succ)); |
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121 } |
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122 |
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123 for (Block pred : b.getPredecessors()) { |
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124 map.get(b).blockPredecessors().add(map.get(pred)); |
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125 } |
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126 } |
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127 |
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128 orderedBlocks = lirBlocks; |
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129 valueToBlock = new HashMap<Node, LIRBlock>(); |
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130 for (LIRBlock b : orderedBlocks) { |
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131 for (Node i : b.getInstructions()) { |
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132 valueToBlock.put(i, b); |
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133 } |
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134 } |
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135 startBlock = lirBlocks.get(0); |
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136 assert startBlock != null; |
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137 assert startBlock.blockPredecessors().size() == 0; |
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138 |
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139 ComputeLinearScanOrder clso = new ComputeLinearScanOrder(lirBlocks.size(), startBlock); |
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140 orderedBlocks = clso.linearScanOrder(); |
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141 this.compilation.stats.loopCount = clso.numLoops(); |
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142 |
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143 int z = 0; |
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144 for (LIRBlock b : orderedBlocks) { |
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145 b.setLinearScanNumber(z++); |
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146 } |
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147 |
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148 verifyAndPrint("After linear scan order"); |
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149 |
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150 if (C1XOptions.PrintTimers) { |
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151 C1XTimers.HIR_OPTIMIZE.stop(); |
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152 } |
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153 } |
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154 |
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155 private void buildGraph() { |
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156 // Graph builder must set the startBlock and the osrEntryBlock |
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157 new GraphBuilder(compilation, compilation.method, compilation.graph).build(false); |
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158 |
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159 // CompilerGraph duplicate = new CompilerGraph(); |
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160 // Map<Node, Node> replacements = new HashMap<Node, Node>(); |
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161 // replacements.put(compilation.graph.start(), duplicate.start()); |
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162 // duplicate.addDuplicate(compilation.graph.getNodes(), replacements); |
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163 // compilation.graph = duplicate; |
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164 |
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165 verifyAndPrint("After graph building"); |
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166 |
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167 DeadCodeElimination dce = new DeadCodeElimination(); |
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168 dce.apply(compilation.graph); |
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169 if (dce.deletedNodeCount > 0) { |
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170 verifyAndPrint("After dead code elimination"); |
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171 } |
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172 |
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173 if (C1XOptions.Inline) { |
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174 new Inlining(compilation, this).apply(compilation.graph); |
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175 } |
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176 |
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177 if (C1XOptions.PrintCompilation) { |
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178 TTY.print(String.format("%3d blocks | ", compilation.stats.blockCount)); |
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179 } |
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180 } |
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181 |
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182 /** |
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183 * Gets the linear scan ordering of blocks as a list. |
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184 * @return the blocks in linear scan order |
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185 */ |
2718
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Attempt to remove dependency between backend and BlockBegin.
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186 public List<LIRBlock> linearScanOrder() { |
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187 return orderedBlocks; |
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188 } |
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189 |
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190 private void print(boolean cfgOnly) { |
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191 if (!TTY.isSuppressed()) { |
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192 TTY.println("IR for " + compilation.method); |
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193 final InstructionPrinter ip = new InstructionPrinter(TTY.out()); |
2546
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Removed liveness marking.
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|
194 final BlockPrinter bp = new BlockPrinter(this, ip, cfgOnly); |
2783
9bc0c2eb00d6
Made graph builder removal of BlockBegin work.
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|
195 //getHIRStartBlock().iteratePreOrder(bp); |
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196 } |
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197 } |
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198 |
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199 /** |
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200 * Verifies the IR and prints it out if the relevant options are set. |
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201 * @param phase the name of the phase for printing |
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202 */ |
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203 public void verifyAndPrint(String phase) { |
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No need for stateAfter on volatile field loads.
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204 if (C1XOptions.PrintHIR && !TTY.isSuppressed()) { |
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|
205 TTY.println(phase); |
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206 print(false); |
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207 } |
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208 |
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209 if (compilation.compiler.isObserved()) { |
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Add block structure to ideal graph visualizer
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|
210 compilation.compiler.fireCompilationEvent(new CompilationEvent(compilation, phase, compilation.graph, true, false)); |
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211 } |
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212 } |
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213 |
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|
214 public void printGraph(String phase, Graph graph) { |
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|
215 if (C1XOptions.PrintHIR && !TTY.isSuppressed()) { |
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|
216 TTY.println(phase); |
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|
217 print(false); |
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|
218 } |
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219 |
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|
220 if (compilation.compiler.isObserved()) { |
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221 compilation.compiler.fireCompilationEvent(new CompilationEvent(compilation, phase, graph, true, false)); |
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222 } |
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223 } |
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224 |
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225 public int numLoops() { |
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226 return compilation.stats.loopCount; |
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227 } |
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228 |
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|
229 /** |
2840
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230 * Gets the maximum number of locks in the graph's frame states. |
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231 */ |
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232 public final int maxLocks() { |
2840
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|
233 int maxLocks = 0; |
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234 for (Node node : compilation.graph.getNodes()) { |
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235 if (node instanceof FrameState) { |
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236 int lockCount = ((FrameState) node).locksSize(); |
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237 if (lockCount > maxLocks) { |
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parents:
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238 maxLocks = lockCount; |
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parents:
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239 } |
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parents:
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240 } |
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241 } |
2564
274360f98f97
Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
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242 return maxLocks; |
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243 } |
2718
c1ce2a53d6c3
Attempt to remove dependency between backend and BlockBegin.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
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244 |
2781
bda5972a40a5
remove unnecessary BlockBegin nodes in frontend
Lukas Stadler <lukas.stadler@jku.at>
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245 public Instruction getHIRStartBlock() { |
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246 return (Instruction) compilation.graph.start().successors().get(0); |
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parents:
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247 } |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
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248 } |