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annotate graal/com.oracle.graal.phases/src/com/oracle/graal/phases/schedule/SchedulePhase.java @ 15534:4bd6ad45ee0a

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Encapsulate members of Loop.
author Josef Eisl <josef.eisl@jku.at>
date Mon, 05 May 2014 11:10:19 +0200
parents 81eee524bbec
children f0254bab4c6b
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1 /*
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2 * Copyright (c) 2011, 2013, 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.oracle.graal.phases.schedule;
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24
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25 import static com.oracle.graal.api.meta.LocationIdentity.*;
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26 import static com.oracle.graal.compiler.common.GraalOptions.*;
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27 import static com.oracle.graal.nodes.cfg.ControlFlowGraph.*;
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28
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29 import java.util.*;
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30
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31 import com.oracle.graal.api.meta.*;
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32 import com.oracle.graal.compiler.common.*;
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33 import com.oracle.graal.compiler.common.cfg.*;
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34 import com.oracle.graal.debug.*;
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35 import com.oracle.graal.graph.*;
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36 import com.oracle.graal.graph.Node.Verbosity;
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37 import com.oracle.graal.nodes.*;
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38 import com.oracle.graal.nodes.cfg.*;
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39 import com.oracle.graal.nodes.extended.*;
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40 import com.oracle.graal.nodes.spi.*;
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41 import com.oracle.graal.nodes.virtual.*;
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42 import com.oracle.graal.phases.*;
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43 import com.oracle.graal.phases.graph.*;
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44 import com.oracle.graal.phases.graph.ReentrantBlockIterator.BlockIteratorClosure;
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45 import com.oracle.graal.phases.graph.ReentrantBlockIterator.LoopInfo;
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46 import com.oracle.graal.phases.util.*;
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47
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48 public final class SchedulePhase extends Phase {
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49
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50 /**
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51 * Error thrown when a graph cannot be scheduled.
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52 */
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53 public static class SchedulingError extends Error {
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54
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55 private static final long serialVersionUID = 1621001069476473145L;
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56
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57 public SchedulingError() {
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58 super();
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59 }
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60
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61 /**
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62 * This constructor creates a {@link SchedulingError} with a message assembled via
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63 * {@link String#format(String, Object...)}.
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64 *
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65 * @param format a {@linkplain Formatter format} string
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66 * @param args parameters to {@link String#format(String, Object...)}
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67 */
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68 public SchedulingError(String format, Object... args) {
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69 super(String.format(format, args));
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70 }
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71
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72 }
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73
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74 public static enum SchedulingStrategy {
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75 EARLIEST,
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76 LATEST,
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77 LATEST_OUT_OF_LOOPS
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78 }
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79
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80 public static enum MemoryScheduling {
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81 NONE,
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82 OPTIMAL
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83 }
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84
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85 private class KillSet implements Iterable<LocationIdentity> {
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86 private final Set<LocationIdentity> set;
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87
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88 public KillSet() {
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89 this.set = new ArraySet<>();
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90 }
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91
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92 public KillSet(KillSet other) {
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93 this.set = new HashSet<>(other.set);
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94 }
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95
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96 public void add(LocationIdentity locationIdentity) {
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97 set.add(locationIdentity);
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98 }
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99
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100 public void addAll(KillSet other) {
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101 set.addAll(other.set);
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102 }
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103
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104 public Iterator<LocationIdentity> iterator() {
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105 return set.iterator();
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106 }
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107
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108 public boolean isKilled(LocationIdentity locationIdentity) {
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109 return set.contains(locationIdentity);
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110 }
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111
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112 }
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113
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114 private class NewMemoryScheduleClosure extends BlockIteratorClosure<KillSet> {
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115 private Node excludeNode;
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116 private Block upperBoundBlock;
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117
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118 public NewMemoryScheduleClosure(Node excludeNode, Block upperBoundBlock) {
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119 this.excludeNode = excludeNode;
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120 this.upperBoundBlock = upperBoundBlock;
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121 }
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122
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123 public NewMemoryScheduleClosure() {
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124 this(null, null);
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125 }
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126
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127 @Override
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128 protected KillSet getInitialState() {
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129 return cloneState(blockToKillSet.get(getCFG().getStartBlock()));
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130 }
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131
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132 @Override
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133 protected KillSet processBlock(Block block, KillSet currentState) {
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134 assert block != null;
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135 currentState.addAll(computeKillSet(block, block == upperBoundBlock ? excludeNode : null));
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136 return currentState;
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137 }
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138
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139 @Override
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140 protected KillSet merge(Block merge, List<KillSet> states) {
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141 assert merge.getBeginNode() instanceof MergeNode;
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142
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143 KillSet initKillSet = new KillSet();
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144 for (KillSet state : states) {
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145 initKillSet.addAll(state);
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146 }
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147
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148 return initKillSet;
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149 }
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150
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151 @Override
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152 protected KillSet cloneState(KillSet state) {
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153 return new KillSet(state);
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154 }
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155
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156 @Override
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157 protected List<KillSet> processLoop(Loop<Block> loop, KillSet state) {
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158 LoopInfo<KillSet> info = ReentrantBlockIterator.processLoop(this, loop, cloneState(state));
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159
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160 assert loop.getHeader().getBeginNode() instanceof LoopBeginNode;
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161 KillSet headerState = merge(loop.getHeader(), info.endStates);
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162
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163 // second iteration, for propagating information to loop exits
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164 info = ReentrantBlockIterator.processLoop(this, loop, cloneState(headerState));
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165
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166 return info.exitStates;
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167 }
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168 }
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169
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170 /**
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171 * gather all kill locations by iterating trough the nodes assigned to a block.
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172 *
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173 * assumptions: {@link MemoryCheckpoint MemoryCheckPoints} are {@link FixedNode FixedNodes}.
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174 *
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175 * @param block block to analyze
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176 * @param excludeNode if null, compute normal set of kill locations. if != null, don't add kills
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177 * until we reach excludeNode.
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178 * @return all killed locations
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179 */
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180 private KillSet computeKillSet(Block block, Node excludeNode) {
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181 // cache is only valid if we don't potentially exclude kills from the set
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182 if (excludeNode == null) {
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183 KillSet cachedSet = blockToKillSet.get(block);
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184 if (cachedSet != null) {
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185 return cachedSet;
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186 }
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187 }
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188
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189 // add locations to excludedLocations until we reach the excluded node
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190 boolean foundExcludeNode = excludeNode == null;
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191
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192 KillSet set = new KillSet();
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193 KillSet excludedLocations = new KillSet();
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194 if (block.getBeginNode() instanceof MergeNode) {
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195 MergeNode mergeNode = (MergeNode) block.getBeginNode();
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196 for (MemoryPhiNode phi : mergeNode.usages().filter(MemoryPhiNode.class)) {
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197 if (foundExcludeNode) {
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198 set.add(phi.getLocationIdentity());
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199 } else {
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200 excludedLocations.add(phi.getLocationIdentity());
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201 foundExcludeNode = phi == excludeNode;
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202 }
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203 }
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204 }
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205
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206 BeginNode startNode = cfg.getStartBlock().getBeginNode();
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207 assert startNode instanceof StartNode;
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208
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209 KillSet accm = foundExcludeNode ? set : excludedLocations;
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210 for (Node node : block.getNodes()) {
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211 if (!foundExcludeNode && node == excludeNode) {
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212 foundExcludeNode = true;
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213 }
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214 if (node == startNode) {
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215 continue;
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216 }
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217 if (node instanceof MemoryCheckpoint.Single) {
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218 LocationIdentity identity = ((MemoryCheckpoint.Single) node).getLocationIdentity();
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219 accm.add(identity);
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220 } else if (node instanceof MemoryCheckpoint.Multi) {
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221 for (LocationIdentity identity : ((MemoryCheckpoint.Multi) node).getLocationIdentities()) {
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222 accm.add(identity);
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223 }
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224 }
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225 assert MemoryCheckpoint.TypeAssertion.correctType(node);
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226
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227 if (foundExcludeNode) {
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228 accm = set;
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229 }
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230 }
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231
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232 // merge it for the cache entry
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233 excludedLocations.addAll(set);
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234 blockToKillSet.put(block, excludedLocations);
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235
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236 return set;
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237 }
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238
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239 private KillSet computeKillSet(Block block) {
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240 return computeKillSet(block, null);
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241 }
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242
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57cb8ec5f6bb Restructure block and control flow graph data structures
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diff changeset
243 private ControlFlowGraph cfg;
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244 private NodeMap<Block> earliestCache;
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245
5248
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246 /**
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247 * Map from blocks to the nodes in each block.
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248 */
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249 private BlockMap<List<ScheduledNode>> blockToNodesMap;
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250 private BlockMap<KillSet> blockToKillSet;
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251 private final SchedulingStrategy selectedStrategy;
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252 private final MemoryScheduling memsched;
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253
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254 public SchedulePhase() {
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diff changeset
255 this(OptScheduleOutOfLoops.getValue() ? SchedulingStrategy.LATEST_OUT_OF_LOOPS : SchedulingStrategy.LATEST);
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256 }
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257
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diff changeset
258 public SchedulePhase(SchedulingStrategy strategy) {
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parents: 13369
diff changeset
259 this.memsched = MemoryAwareScheduling.getValue() ? MemoryScheduling.OPTIMAL : MemoryScheduling.NONE;
8330
022ae20329fb Rename field.
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diff changeset
260 this.selectedStrategy = strategy;
8325
330b455f18be Make scheduling phase customizable.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 8323
diff changeset
261 }
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diff changeset
262
10925
32a48a01e411 SchedulePhase: remove debugging boolean
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parents: 10924
diff changeset
263 public SchedulePhase(SchedulingStrategy strategy, MemoryScheduling memsched) {
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diff changeset
264 this.selectedStrategy = strategy;
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diff changeset
265 this.memsched = memsched;
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266 }
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diff changeset
267
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268 @Override
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diff changeset
269 protected void run(StructuredGraph graph) {
13729
9a6faa08bffe cyclic graph verification
Lukas Stadler <lukas.stadler@jku.at>
parents: 13599
diff changeset
270 assert GraphOrder.assertNonCyclicGraph(graph);
9413
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parents: 8957
diff changeset
271 cfg = ControlFlowGraph.compute(graph, true, true, true, true);
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parents:
diff changeset
272 earliestCache = graph.createNodeMap();
5248
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diff changeset
273 blockToNodesMap = new BlockMap<>(cfg);
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parents:
diff changeset
274
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diff changeset
275 if (memsched == MemoryScheduling.OPTIMAL && selectedStrategy != SchedulingStrategy.EARLIEST && graph.getNodes(FloatingReadNode.class).isNotEmpty()) {
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diff changeset
276 blockToKillSet = new BlockMap<>(cfg);
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277
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278 assignBlockToNodes(graph, selectedStrategy);
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diff changeset
279 printSchedule("after assign nodes to blocks");
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280
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281 sortNodesWithinBlocks(graph, selectedStrategy);
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diff changeset
282 printSchedule("after sorting nodes within blocks");
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diff changeset
283 } else {
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diff changeset
284 assignBlockToNodes(graph, selectedStrategy);
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diff changeset
285 sortNodesWithinBlocks(graph, selectedStrategy);
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286 }
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287 }
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parents:
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288
13153
ae0001b445c0 Common base interface for nodes in the memory graph.
Roland Schatz <roland.schatz@oracle.com>
parents: 13152
diff changeset
289 private Block blockForMemoryNode(MemoryNode memory) {
ae0001b445c0 Common base interface for nodes in the memory graph.
Roland Schatz <roland.schatz@oracle.com>
parents: 13152
diff changeset
290 MemoryNode current = memory;
ae0001b445c0 Common base interface for nodes in the memory graph.
Roland Schatz <roland.schatz@oracle.com>
parents: 13152
diff changeset
291 while (current instanceof MemoryProxy) {
ae0001b445c0 Common base interface for nodes in the memory graph.
Roland Schatz <roland.schatz@oracle.com>
parents: 13152
diff changeset
292 current = ((MemoryProxy) current).getOriginalMemoryNode();
ae0001b445c0 Common base interface for nodes in the memory graph.
Roland Schatz <roland.schatz@oracle.com>
parents: 13152
diff changeset
293 }
ae0001b445c0 Common base interface for nodes in the memory graph.
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parents: 13152
diff changeset
294 Block b = cfg.getNodeToBlock().get(current.asNode());
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295 assert b != null : "all lastAccess locations should have a block assignment from CFG";
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diff changeset
296 return b;
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diff changeset
297 }
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298
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diff changeset
299 private void printSchedule(String desc) {
14534
ccf090d3be47 new graph ordering assertion mechanism
Lukas Stadler <lukas.stadler@oracle.com>
parents: 13729
diff changeset
300 if (Debug.isLogEnabled()) {
14873
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parents: 14763
diff changeset
301 Formatter buf = new Formatter();
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
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parents: 14763
diff changeset
302 buf.format("=== %s / %s / %s (%s) ===%n", getCFG().getStartBlock().getBeginNode().graph(), selectedStrategy, memsched, desc);
12773
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parents: 12772
diff changeset
303 for (Block b : getCFG().getBlocks()) {
14873
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parents: 14763
diff changeset
304 buf.format("==== b: %s (loopDepth: %s). ", b, b.getLoopDepth());
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
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parents: 14763
diff changeset
305 buf.format("dom: %s. ", b.getDominator());
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
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parents: 14763
diff changeset
306 buf.format("post-dom: %s. ", b.getPostdominator());
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
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parents: 14763
diff changeset
307 buf.format("preds: %s. ", b.getPredecessors());
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
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parents: 14763
diff changeset
308 buf.format("succs: %s ====%n", b.getSuccessors());
12774
1729072a893a NewMemoryAwareScheduling: hide data structure behind wrapper class
Bernhard Urban <bernhard.urban@jku.at>
parents: 12773
diff changeset
309 BlockMap<KillSet> killSets = blockToKillSet;
1729072a893a NewMemoryAwareScheduling: hide data structure behind wrapper class
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diff changeset
310 if (killSets != null) {
14873
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parents: 14763
diff changeset
311 buf.format("X block kills: %n");
12774
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diff changeset
312 if (killSets.get(b) != null) {
1729072a893a NewMemoryAwareScheduling: hide data structure behind wrapper class
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parents: 12773
diff changeset
313 for (LocationIdentity locId : killSets.get(b)) {
14873
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parents: 14763
diff changeset
314 buf.format("X %s killed by %s%n", locId, "dunno anymore");
12773
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parents: 12772
diff changeset
315 }
11863
7763a42d1658 NewMemoryAwareScheduling: handle MemoryPhis properly
Bernhard Urban <bernhard.urban@jku.at>
parents: 11787
diff changeset
316 }
7763a42d1658 NewMemoryAwareScheduling: handle MemoryPhis properly
Bernhard Urban <bernhard.urban@jku.at>
parents: 11787
diff changeset
317 }
12773
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parents: 12772
diff changeset
318
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
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parents: 12772
diff changeset
319 if (blockToNodesMap.get(b) != null) {
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
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parents: 12772
diff changeset
320 for (Node n : nodesFor(b)) {
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
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parents: 12772
diff changeset
321 printNode(n);
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Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
322 }
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
323 } else {
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
324 for (Node n : b.getNodes()) {
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
325 printNode(n);
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
326 }
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
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parents: 10894
diff changeset
327 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
328 }
14873
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
Doug Simon <doug.simon@oracle.com>
parents: 14763
diff changeset
329 buf.format("%n");
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
Doug Simon <doug.simon@oracle.com>
parents: 14763
diff changeset
330 Debug.log("%s", buf);
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
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parents: 10894
diff changeset
331 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
332 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
333
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
334 private static void printNode(Node n) {
14873
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
Doug Simon <doug.simon@oracle.com>
parents: 14763
diff changeset
335 Formatter buf = new Formatter();
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
Doug Simon <doug.simon@oracle.com>
parents: 14763
diff changeset
336 buf.format("%s", n);
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
337 if (n instanceof MemoryCheckpoint.Single) {
14873
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
Doug Simon <doug.simon@oracle.com>
parents: 14763
diff changeset
338 buf.format(" // kills %s", ((MemoryCheckpoint.Single) n).getLocationIdentity());
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
339 } else if (n instanceof MemoryCheckpoint.Multi) {
14873
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
Doug Simon <doug.simon@oracle.com>
parents: 14763
diff changeset
340 buf.format(" // kills ");
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
341 for (LocationIdentity locid : ((MemoryCheckpoint.Multi) n).getLocationIdentities()) {
14873
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
Doug Simon <doug.simon@oracle.com>
parents: 14763
diff changeset
342 buf.format("%s, ", locid);
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
343 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
344 } else if (n instanceof FloatingReadNode) {
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
345 FloatingReadNode frn = (FloatingReadNode) n;
14873
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Doug Simon <doug.simon@oracle.com>
parents: 14763
diff changeset
346 buf.format(" // from %s", frn.location().getLocationIdentity());
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
Doug Simon <doug.simon@oracle.com>
parents: 14763
diff changeset
347 buf.format(", lastAccess: %s", frn.getLastLocationAccess());
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
Doug Simon <doug.simon@oracle.com>
parents: 14763
diff changeset
348 buf.format(", object: %s", frn.object());
10920
9802c478a26c NewMemoryAwareScheduling: fix out of loop scheduling for floating reads (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10919
diff changeset
349 } else if (n instanceof GuardNode) {
15008
01fdabd19cd5 new AnchoringNode interface
Lukas Stadler <lukas.stadler@oracle.com>
parents: 14908
diff changeset
350 buf.format(", anchor: %s", ((GuardNode) n).getAnchor());
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
351 }
14873
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
Doug Simon <doug.simon@oracle.com>
parents: 14763
diff changeset
352 Debug.log("%s", buf);
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
353 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
354
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
355 public ControlFlowGraph getCFG() {
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
356 return cfg;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
357 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
358
5248
066f1687ba24 rename: nodesFor -> blockToNodesMap
Doug Simon <doug.simon@oracle.com>
parents: 5210
diff changeset
359 /**
066f1687ba24 rename: nodesFor -> blockToNodesMap
Doug Simon <doug.simon@oracle.com>
parents: 5210
diff changeset
360 * Gets the map from each block to the nodes in the block.
066f1687ba24 rename: nodesFor -> blockToNodesMap
Doug Simon <doug.simon@oracle.com>
parents: 5210
diff changeset
361 */
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
362 public BlockMap<List<ScheduledNode>> getBlockToNodesMap() {
5248
066f1687ba24 rename: nodesFor -> blockToNodesMap
Doug Simon <doug.simon@oracle.com>
parents: 5210
diff changeset
363 return blockToNodesMap;
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
364 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
365
5248
066f1687ba24 rename: nodesFor -> blockToNodesMap
Doug Simon <doug.simon@oracle.com>
parents: 5210
diff changeset
366 /**
066f1687ba24 rename: nodesFor -> blockToNodesMap
Doug Simon <doug.simon@oracle.com>
parents: 5210
diff changeset
367 * Gets the nodes in a given block.
066f1687ba24 rename: nodesFor -> blockToNodesMap
Doug Simon <doug.simon@oracle.com>
parents: 5210
diff changeset
368 */
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
369 public List<ScheduledNode> nodesFor(Block block) {
5248
066f1687ba24 rename: nodesFor -> blockToNodesMap
Doug Simon <doug.simon@oracle.com>
parents: 5210
diff changeset
370 return blockToNodesMap.get(block);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
371 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
372
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
373 private void assignBlockToNodes(StructuredGraph graph, SchedulingStrategy strategy) {
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
374 for (Block block : cfg.getBlocks()) {
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
375 List<ScheduledNode> nodes = new ArrayList<>();
8950
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
376 if (blockToNodesMap.get(block) != null) {
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
377 throw new SchedulingError();
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
378 }
5248
066f1687ba24 rename: nodesFor -> blockToNodesMap
Doug Simon <doug.simon@oracle.com>
parents: 5210
diff changeset
379 blockToNodesMap.put(block, nodes);
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
380 for (FixedNode node : block.getNodes()) {
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
381 nodes.add(node);
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
382 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
383 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
384
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
385 for (Node n : graph.getNodes()) {
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
386 if (n instanceof ScheduledNode) {
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
387 assignBlockToNode((ScheduledNode) n, strategy);
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
388 }
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
389 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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diff changeset
390 }
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parents:
diff changeset
391
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diff changeset
392 /**
7530
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393 * Assigns a block to the given node. This method expects that PhiNodes and FixedNodes are
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diff changeset
394 * already assigned to a block.
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395 */
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396 private void assignBlockToNode(ScheduledNode node, SchedulingStrategy strategy) {
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diff changeset
397 assert !node.isDeleted();
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diff changeset
398
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diff changeset
399 if (cfg.getNodeToBlock().containsKey(node)) {
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diff changeset
400 return;
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parents:
diff changeset
401 }
10892
caa8706c6202 CFG: attach proxies to loop exits
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diff changeset
402 // PhiNodes, ProxyNodes and FixedNodes should already have been placed in blocks by
7530
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diff changeset
403 // ControlFlowGraph.identifyBlocks
10892
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parents: 10891
diff changeset
404 if (node instanceof PhiNode || node instanceof ProxyNode || node instanceof FixedNode) {
8950
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
405 throw new SchedulingError("%s should already have been placed in a block", node);
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
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parents: 8920
diff changeset
406 }
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407
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408 Block earliestBlock = earliestBlock(node);
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409 Block block = null;
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diff changeset
410 Block latest = null;
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411 switch (strategy) {
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412 case EARLIEST:
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3d97040060d4 SchedulePhase: bail out with SchedulingError if scheduled block is not dominated by earliest
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413 block = earliestBlock;
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414 break;
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415 case LATEST:
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416 case LATEST_OUT_OF_LOOPS:
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417 boolean scheduleRead = memsched == MemoryScheduling.OPTIMAL && node instanceof FloatingReadNode && ((FloatingReadNode) node).location().getLocationIdentity() != FINAL_LOCATION;
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418 if (scheduleRead) {
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419 FloatingReadNode read = (FloatingReadNode) node;
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420 block = optimalBlock(read, strategy);
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421 Debug.log("schedule for %s: %s", read, block);
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422 assert earliestBlock.dominates(block) : String.format("%s (%s) cannot be scheduled before earliest schedule (%s). location: %s", read, block, earliestBlock,
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423 read.getLocationIdentity());
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424 } else {
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425 block = latestBlock(node, strategy);
7871
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426 }
12772
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diff changeset
427 if (block == null) {
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diff changeset
428 // handle nodes without usages
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429 block = earliestBlock;
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430 } else if (strategy == SchedulingStrategy.LATEST_OUT_OF_LOOPS && !(node instanceof VirtualObjectNode)) {
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431 // schedule at the latest position possible in the outermost loop possible
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432 latest = block;
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diff changeset
433 block = scheduleOutOfLoops(node, block, earliestBlock);
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diff changeset
434 }
6a7b6dcb7f67 NewMemoryAwareScheduling: fix out of loop for FloatingReadNodes
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diff changeset
435
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diff changeset
436 if (assertionEnabled()) {
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diff changeset
437 if (scheduleRead) {
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diff changeset
438 FloatingReadNode read = (FloatingReadNode) node;
13153
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parents: 13152
diff changeset
439 MemoryNode lastLocationAccess = read.getLastLocationAccess();
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Roland Schatz <roland.schatz@oracle.com>
parents: 13152
diff changeset
440 Block upperBound = blockForMemoryNode(lastLocationAccess);
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diff changeset
441 assert upperBound.dominates(block) : String.format(
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diff changeset
442 "out of loop movement voilated memory semantics for %s (location %s). moved to %s but upper bound is %s (earliest: %s, latest: %s)", read,
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diff changeset
443 read.getLocationIdentity(), block, upperBound, earliestBlock, latest);
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444 }
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diff changeset
445 }
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446 break;
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447 default:
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448 throw new GraalInternalError("unknown scheduling strategy");
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449 }
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diff changeset
450 if (!earliestBlock.dominates(block)) {
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diff changeset
451 throw new SchedulingError("%s: Graph cannot be scheduled : inconsistent for %s, %d usages, (%s needs to dominate %s)", node.graph(), node, node.usages().count(), earliestBlock, block);
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452 }
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diff changeset
453 cfg.getNodeToBlock().set(node, block);
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parents: 5583
diff changeset
454 blockToNodesMap.get(block).add(node);
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455 }
e233f5660da4 Added Java files from Maxine project.
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parents:
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456
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457 @SuppressWarnings("all")
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458 private static boolean assertionEnabled() {
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diff changeset
459 boolean enabled = false;
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diff changeset
460 assert enabled = true;
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diff changeset
461 return enabled;
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diff changeset
462 }
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
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diff changeset
463
10920
9802c478a26c NewMemoryAwareScheduling: fix out of loop scheduling for floating reads (GRAAL-159)
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diff changeset
464 /**
12773
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465 * this method tries to find the "optimal" schedule for a read, by pushing it down towards its
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
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parents: 12772
diff changeset
466 * latest schedule starting by the earliest schedule. By doing this, it takes care of memory
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Bernhard Urban <bernhard.urban@jku.at>
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diff changeset
467 * dependencies using kill sets.
14763
a6c1c3eb20c4 transition to JDK8
Doug Simon <doug.simon@oracle.com>
parents: 14734
diff changeset
468 *
12773
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Bernhard Urban <bernhard.urban@jku.at>
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diff changeset
469 * In terms of domination relation, it looks like this:
14763
a6c1c3eb20c4 transition to JDK8
Doug Simon <doug.simon@oracle.com>
parents: 14734
diff changeset
470 *
10920
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parents: 10919
diff changeset
471 * <pre>
9802c478a26c NewMemoryAwareScheduling: fix out of loop scheduling for floating reads (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10919
diff changeset
472 * U upperbound block, defined by last access location of the floating read
14906
f3a5036cc13c javadoc fixes
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diff changeset
473 * &and;
10920
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diff changeset
474 * E earliest block
14906
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parents: 14873
diff changeset
475 * &and;
10920
9802c478a26c NewMemoryAwareScheduling: fix out of loop scheduling for floating reads (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10919
diff changeset
476 * O optimal block, first block that contains a kill of the read's location
14906
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Bernhard Urban <bernhard.urban@jku.at>
parents: 14873
diff changeset
477 * &and;
10920
9802c478a26c NewMemoryAwareScheduling: fix out of loop scheduling for floating reads (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10919
diff changeset
478 * L latest block
9802c478a26c NewMemoryAwareScheduling: fix out of loop scheduling for floating reads (GRAAL-159)
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parents: 10919
diff changeset
479 * </pre>
14763
a6c1c3eb20c4 transition to JDK8
Doug Simon <doug.simon@oracle.com>
parents: 14734
diff changeset
480 *
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diff changeset
481 * i.e. <code>upperbound `dom` earliest `dom` optimal `dom` latest</code>.
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parents: 14734
diff changeset
482 *
10920
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diff changeset
483 */
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diff changeset
484 private Block optimalBlock(FloatingReadNode n, SchedulingStrategy strategy) {
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
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parents: 10894
diff changeset
485 assert memsched == MemoryScheduling.OPTIMAL;
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
486
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
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diff changeset
487 LocationIdentity locid = n.location().getLocationIdentity();
10920
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Bernhard Urban <bernhard.urban@jku.at>
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diff changeset
488 assert locid != FINAL_LOCATION;
9802c478a26c NewMemoryAwareScheduling: fix out of loop scheduling for floating reads (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10919
diff changeset
489
13153
ae0001b445c0 Common base interface for nodes in the memory graph.
Roland Schatz <roland.schatz@oracle.com>
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diff changeset
490 Block upperBoundBlock = blockForMemoryNode(n.getLastLocationAccess());
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diff changeset
491 Block earliestBlock = earliestBlock(n);
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diff changeset
492 assert upperBoundBlock.dominates(earliestBlock) : "upper bound (" + upperBoundBlock + ") should dominate earliest (" + earliestBlock + ")";
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parents: 10894
diff changeset
493
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diff changeset
494 Block latestBlock = latestBlock(n, strategy);
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
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diff changeset
495 assert latestBlock != null && earliestBlock.dominates(latestBlock) : "earliest (" + earliestBlock + ") should dominate latest block (" + latestBlock + ")";
10896
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Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
496
14873
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Doug Simon <doug.simon@oracle.com>
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diff changeset
497 Debug.log("processing %s (accessing %s): latest %s, earliest %s, upper bound %s (%s)", n, locid, latestBlock, earliestBlock, upperBoundBlock, n.getLastLocationAccess());
12773
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diff changeset
498 if (earliestBlock == latestBlock) {
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diff changeset
499 // read is fixed to this block, nothing to schedule
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diff changeset
500 return latestBlock;
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diff changeset
501 }
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
502
13599
29b1b216d20a SchedulePhase: use {Queue,Deque}/LinkedList instead of Stack
Bernhard Urban <bernhard.urban@jku.at>
parents: 13370
diff changeset
503 Deque<Block> path = computePathInDominatorTree(earliestBlock, latestBlock);
14873
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
Doug Simon <doug.simon@oracle.com>
parents: 14763
diff changeset
504 Debug.log("|path| is %d: %s", path.size(), path);
10920
9802c478a26c NewMemoryAwareScheduling: fix out of loop scheduling for floating reads (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10919
diff changeset
505
12773
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Bernhard Urban <bernhard.urban@jku.at>
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diff changeset
506 // follow path, start at earliest schedule
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
507 while (path.size() > 0) {
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
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diff changeset
508 Block currentBlock = path.pop();
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
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diff changeset
509 Block dominatedBlock = path.size() == 0 ? null : path.peek();
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diff changeset
510 if (dominatedBlock != null && !currentBlock.getSuccessors().contains(dominatedBlock)) {
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
511 // the dominated block is not a successor -> we have a split
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
512 assert dominatedBlock.getBeginNode() instanceof MergeNode;
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
513
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
514 HashSet<Block> region = computeRegion(currentBlock, dominatedBlock);
14873
00eb80d735ed removed Debug.printf and added multi-arg versions of Debug.dump
Doug Simon <doug.simon@oracle.com>
parents: 14763
diff changeset
515 Debug.log("> merge. %s: region for %s -> %s: %s", n, currentBlock, dominatedBlock, region);
12773
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
516
13092
b334ca53f077 NewMemoryAwareScheduling: don't consider lastAccessLocation of a read as a kill
Bernhard Urban <bernhard.urban@jku.at>
parents: 12774
diff changeset
517 NewMemoryScheduleClosure closure = null;
b334ca53f077 NewMemoryAwareScheduling: don't consider lastAccessLocation of a read as a kill
Bernhard Urban <bernhard.urban@jku.at>
parents: 12774
diff changeset
518 if (currentBlock == upperBoundBlock) {
b334ca53f077 NewMemoryAwareScheduling: don't consider lastAccessLocation of a read as a kill
Bernhard Urban <bernhard.urban@jku.at>
parents: 12774
diff changeset
519 assert earliestBlock == upperBoundBlock;
b334ca53f077 NewMemoryAwareScheduling: don't consider lastAccessLocation of a read as a kill
Bernhard Urban <bernhard.urban@jku.at>
parents: 12774
diff changeset
520 // don't treat lastLocationAccess node as a kill for this read.
13153
ae0001b445c0 Common base interface for nodes in the memory graph.
Roland Schatz <roland.schatz@oracle.com>
parents: 13152
diff changeset
521 closure = new NewMemoryScheduleClosure(ValueNodeUtil.asNode(n.getLastLocationAccess()), upperBoundBlock);
13092
b334ca53f077 NewMemoryAwareScheduling: don't consider lastAccessLocation of a read as a kill
Bernhard Urban <bernhard.urban@jku.at>
parents: 12774
diff changeset
522 } else {
b334ca53f077 NewMemoryAwareScheduling: don't consider lastAccessLocation of a read as a kill
Bernhard Urban <bernhard.urban@jku.at>
parents: 12774
diff changeset
523 closure = new NewMemoryScheduleClosure();
b334ca53f077 NewMemoryAwareScheduling: don't consider lastAccessLocation of a read as a kill
Bernhard Urban <bernhard.urban@jku.at>
parents: 12774
diff changeset
524 }
12774
1729072a893a NewMemoryAwareScheduling: hide data structure behind wrapper class
Bernhard Urban <bernhard.urban@jku.at>
parents: 12773
diff changeset
525 Map<FixedNode, KillSet> states;
13092
b334ca53f077 NewMemoryAwareScheduling: don't consider lastAccessLocation of a read as a kill
Bernhard Urban <bernhard.urban@jku.at>
parents: 12774
diff changeset
526 states = ReentrantBlockIterator.apply(closure, currentBlock, new KillSet(), region);
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
527
12774
1729072a893a NewMemoryAwareScheduling: hide data structure behind wrapper class
Bernhard Urban <bernhard.urban@jku.at>
parents: 12773
diff changeset
528 KillSet mergeState = states.get(dominatedBlock.getBeginNode());
1729072a893a NewMemoryAwareScheduling: hide data structure behind wrapper class
Bernhard Urban <bernhard.urban@jku.at>
parents: 12773
diff changeset
529 if (mergeState.isKilled(locid)) {
12773
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
530 // location got killed somewhere in the branches,
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
531 // thus we've to move the read above it
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
532 return currentBlock;
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
533 }
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
534 } else {
13092
b334ca53f077 NewMemoryAwareScheduling: don't consider lastAccessLocation of a read as a kill
Bernhard Urban <bernhard.urban@jku.at>
parents: 12774
diff changeset
535 if (currentBlock == upperBoundBlock) {
b334ca53f077 NewMemoryAwareScheduling: don't consider lastAccessLocation of a read as a kill
Bernhard Urban <bernhard.urban@jku.at>
parents: 12774
diff changeset
536 assert earliestBlock == upperBoundBlock;
13153
ae0001b445c0 Common base interface for nodes in the memory graph.
Roland Schatz <roland.schatz@oracle.com>
parents: 13152
diff changeset
537 KillSet ks = computeKillSet(upperBoundBlock, ValueNodeUtil.asNode(n.getLastLocationAccess()));
13092
b334ca53f077 NewMemoryAwareScheduling: don't consider lastAccessLocation of a read as a kill
Bernhard Urban <bernhard.urban@jku.at>
parents: 12774
diff changeset
538 if (ks.isKilled(locid)) {
b334ca53f077 NewMemoryAwareScheduling: don't consider lastAccessLocation of a read as a kill
Bernhard Urban <bernhard.urban@jku.at>
parents: 12774
diff changeset
539 return upperBoundBlock;
b334ca53f077 NewMemoryAwareScheduling: don't consider lastAccessLocation of a read as a kill
Bernhard Urban <bernhard.urban@jku.at>
parents: 12774
diff changeset
540 }
b334ca53f077 NewMemoryAwareScheduling: don't consider lastAccessLocation of a read as a kill
Bernhard Urban <bernhard.urban@jku.at>
parents: 12774
diff changeset
541 } else if (dominatedBlock == null || computeKillSet(currentBlock).isKilled(locid)) {
12773
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
542 return currentBlock;
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
543 }
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
544 }
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
545 }
13370
3e67710a6d08 SchedulePhase: remove old memory aware scheudling
Bernhard Urban <bernhard.urban@jku.at>
parents: 13369
diff changeset
546 throw new SchedulingError("should have found a block for " + n);
12773
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
547 }
10920
9802c478a26c NewMemoryAwareScheduling: fix out of loop scheduling for floating reads (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10919
diff changeset
548
12773
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
549 /**
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
550 * compute path in dominator tree from earliest schedule to latest schedule.
14763
a6c1c3eb20c4 transition to JDK8
Doug Simon <doug.simon@oracle.com>
parents: 14734
diff changeset
551 *
12773
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
552 * @return the order of the stack is such as the first element is the earliest schedule.
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
553 */
13599
29b1b216d20a SchedulePhase: use {Queue,Deque}/LinkedList instead of Stack
Bernhard Urban <bernhard.urban@jku.at>
parents: 13370
diff changeset
554 private static Deque<Block> computePathInDominatorTree(Block earliestBlock, Block latestBlock) {
29b1b216d20a SchedulePhase: use {Queue,Deque}/LinkedList instead of Stack
Bernhard Urban <bernhard.urban@jku.at>
parents: 13370
diff changeset
555 Deque<Block> path = new LinkedList<>();
12773
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
556 Block currentBlock = latestBlock;
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
557 while (currentBlock != null && earliestBlock.dominates(currentBlock)) {
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
558 path.push(currentBlock);
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
559 currentBlock = currentBlock.getDominator();
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
560 }
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
561 assert path.peek() == earliestBlock;
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
562 return path;
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
563 }
10920
9802c478a26c NewMemoryAwareScheduling: fix out of loop scheduling for floating reads (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10919
diff changeset
564
12773
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
565 /**
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
566 * compute a set that contains all blocks in a region spanned by dominatorBlock and
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
567 * dominatedBlock (exclusive the dominatedBlock).
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
568 */
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
569 private static HashSet<Block> computeRegion(Block dominatorBlock, Block dominatedBlock) {
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
570 HashSet<Block> region = new HashSet<>();
13599
29b1b216d20a SchedulePhase: use {Queue,Deque}/LinkedList instead of Stack
Bernhard Urban <bernhard.urban@jku.at>
parents: 13370
diff changeset
571 Queue<Block> workList = new LinkedList<>();
12773
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
572
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
573 region.add(dominatorBlock);
13599
29b1b216d20a SchedulePhase: use {Queue,Deque}/LinkedList instead of Stack
Bernhard Urban <bernhard.urban@jku.at>
parents: 13370
diff changeset
574 workList.addAll(dominatorBlock.getSuccessors());
12773
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
575 while (workList.size() > 0) {
13599
29b1b216d20a SchedulePhase: use {Queue,Deque}/LinkedList instead of Stack
Bernhard Urban <bernhard.urban@jku.at>
parents: 13370
diff changeset
576 Block current = workList.poll();
12773
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
577 if (current != dominatedBlock) {
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
578 region.add(current);
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
579 for (Block b : current.getSuccessors()) {
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
580 if (!region.contains(b) && !workList.contains(b)) {
13599
29b1b216d20a SchedulePhase: use {Queue,Deque}/LinkedList instead of Stack
Bernhard Urban <bernhard.urban@jku.at>
parents: 13370
diff changeset
581 workList.offer(b);
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
582 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
583 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
584 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
585 }
12773
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
586 assert !region.contains(dominatedBlock) && region.containsAll(dominatedBlock.getPredecessors());
b6e04d6fe3a7 NewMemoryAwareScheduling: rewrite to set based approach
Bernhard Urban <bernhard.urban@jku.at>
parents: 12772
diff changeset
587 return region;
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
588 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
589
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
590 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
591 * Calculates the last block that the given node could be scheduled in, i.e., the common
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
592 * dominator of all usages. To do so all usages are also assigned to blocks.
14763
a6c1c3eb20c4 transition to JDK8
Doug Simon <doug.simon@oracle.com>
parents: 14734
diff changeset
593 *
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
594 * @param strategy
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
595 */
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
596 private Block latestBlock(ScheduledNode node, SchedulingStrategy strategy) {
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
597 CommonDominatorBlockClosure cdbc = new CommonDominatorBlockClosure(null);
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
598 for (Node succ : node.successors().nonNull()) {
8950
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
599 if (cfg.getNodeToBlock().get(succ) == null) {
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
600 throw new SchedulingError();
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
601 }
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
602 cdbc.apply(cfg.getNodeToBlock().get(succ));
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
603 }
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
604 ensureScheduledUsages(node, strategy);
12570
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
605 if (node.recordsUsages()) {
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
606 for (Node usage : node.usages()) {
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
607 blocksForUsage(node, usage, cdbc, strategy);
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
608 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
609 }
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
610
13298
5a3491b0c2f0 convert assertion in SchedulePhase to raise SchedulingError instead of AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 13153
diff changeset
611 if (assertionEnabled()) {
5a3491b0c2f0 convert assertion in SchedulePhase to raise SchedulingError instead of AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 13153
diff changeset
612 if (cdbc.block != null && !earliestBlock(node).dominates(cdbc.block)) {
5a3491b0c2f0 convert assertion in SchedulePhase to raise SchedulingError instead of AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 13153
diff changeset
613 throw new SchedulingError("failed to find correct latest schedule for %s. cdbc: %s, earliest: %s", node, cdbc.block, earliestBlock(node));
5a3491b0c2f0 convert assertion in SchedulePhase to raise SchedulingError instead of AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 13153
diff changeset
614 }
5a3491b0c2f0 convert assertion in SchedulePhase to raise SchedulingError instead of AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 13153
diff changeset
615 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
616 return cdbc.block;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
617 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
618
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
619 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
620 * A closure that will calculate the common dominator of all blocks passed to its
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
621 * {@link #apply(Block)} method.
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
622 */
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
623 private static class CommonDominatorBlockClosure implements BlockClosure {
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
624
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
625 public Block block;
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
626
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
627 public CommonDominatorBlockClosure(Block block) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
628 this.block = block;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
629 }
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
630
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
631 @Override
4142
bc8527f3071c Adjust code base to new level of warnings.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3733
diff changeset
632 public void apply(Block newBlock) {
10609
5f016460f95b scheduling: remove duplicated code
Bernhard Urban <bernhard.urban@jku.at>
parents: 10490
diff changeset
633 this.block = commonDominator(this.block, newBlock);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
634 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
635 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
636
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
637 /**
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
638 * Determines the earliest block in which the given node can be scheduled.
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
639 */
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
640 private Block earliestBlock(Node node) {
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
641 Block earliest = cfg.getNodeToBlock().get(node);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
642 if (earliest != null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
643 return earliest;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
644 }
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
645 earliest = earliestCache.get(node);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
646 if (earliest != null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
647 return earliest;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
648 }
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
649 /*
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
650 * All inputs must be in a dominating block, otherwise the graph cannot be scheduled. This
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
651 * implies that the inputs' blocks have a total ordering via their dominance relation. So in
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
652 * order to find the earliest block placement for this node we need to find the input block
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
653 * that is dominated by all other input blocks.
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
654 */
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
655
8950
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
656 if (node.predecessor() != null) {
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
657 throw new SchedulingError();
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
658 }
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
659 for (Node input : node.inputs().nonNull()) {
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
660 assert input instanceof ValueNode;
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
661 Block inputEarliest;
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
662 if (input instanceof InvokeWithExceptionNode) {
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
663 inputEarliest = cfg.getNodeToBlock().get(((InvokeWithExceptionNode) input).next());
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
664 } else {
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
665 inputEarliest = earliestBlock(input);
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
666 }
15173
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
667 if (earliest == null) {
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
668 earliest = inputEarliest;
15173
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
669 } else if (earliest != inputEarliest) {
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
670 // Find out whether earliest or inputEarliest is earlier.
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
671 Block a = earliest.getDominator();
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
672 Block b = inputEarliest;
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
673 while (true) {
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
674 if (a == inputEarliest || b == null) {
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
675 // Nothing to change, the previous earliest block is still earliest.
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
676 break;
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
677 } else if (b == earliest || a == null) {
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
678 // New earliest is the earliest.
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
679 earliest = inputEarliest;
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
680 break;
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
681 }
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
682 a = a.getDominator();
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
683 b = b.getDominator();
fc7f2bbd4edd Improve schedule phase to avoid allocation of a BitSet per scheduled node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15157
diff changeset
684 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
685 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
686 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
687 if (earliest == null) {
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
688 earliest = cfg.getStartBlock();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
689 }
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
690 earliestCache.set(node, earliest);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
691 return earliest;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
692 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
693
12772
6a7b6dcb7f67 NewMemoryAwareScheduling: fix out of loop for FloatingReadNodes
Bernhard Urban <bernhard.urban@jku.at>
parents: 12722
diff changeset
694 /**
6a7b6dcb7f67 NewMemoryAwareScheduling: fix out of loop for FloatingReadNodes
Bernhard Urban <bernhard.urban@jku.at>
parents: 12722
diff changeset
695 * Schedules a node out of loop based on its earliest schedule. Note that this movement is only
6a7b6dcb7f67 NewMemoryAwareScheduling: fix out of loop for FloatingReadNodes
Bernhard Urban <bernhard.urban@jku.at>
parents: 12722
diff changeset
696 * valid if it's done for <b>every</b> other node in the schedule, otherwise this movement is
6a7b6dcb7f67 NewMemoryAwareScheduling: fix out of loop for FloatingReadNodes
Bernhard Urban <bernhard.urban@jku.at>
parents: 12722
diff changeset
697 * not valid.
14763
a6c1c3eb20c4 transition to JDK8
Doug Simon <doug.simon@oracle.com>
parents: 14734
diff changeset
698 *
12772
6a7b6dcb7f67 NewMemoryAwareScheduling: fix out of loop for FloatingReadNodes
Bernhard Urban <bernhard.urban@jku.at>
parents: 12722
diff changeset
699 * @param n Node to schedule
6a7b6dcb7f67 NewMemoryAwareScheduling: fix out of loop for FloatingReadNodes
Bernhard Urban <bernhard.urban@jku.at>
parents: 12722
diff changeset
700 * @param latestBlock latest possible schedule for {@code n}
6a7b6dcb7f67 NewMemoryAwareScheduling: fix out of loop for FloatingReadNodes
Bernhard Urban <bernhard.urban@jku.at>
parents: 12722
diff changeset
701 * @param earliest earliest possible schedule for {@code n}
6a7b6dcb7f67 NewMemoryAwareScheduling: fix out of loop for FloatingReadNodes
Bernhard Urban <bernhard.urban@jku.at>
parents: 12722
diff changeset
702 * @return block schedule for {@code n} which is not inside a loop (if possible)
6a7b6dcb7f67 NewMemoryAwareScheduling: fix out of loop for FloatingReadNodes
Bernhard Urban <bernhard.urban@jku.at>
parents: 12722
diff changeset
703 */
4142
bc8527f3071c Adjust code base to new level of warnings.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3733
diff changeset
704 private static Block scheduleOutOfLoops(Node n, Block latestBlock, Block earliest) {
8950
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
705 if (latestBlock == null) {
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
706 throw new SchedulingError("no latest : %s", n);
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
707 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
708 Block cur = latestBlock;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
709 Block result = latestBlock;
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
710 while (cur.getLoop() != null && cur != earliest && cur.getDominator() != null) {
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
711 Block dom = cur.getDominator();
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
712 if (dom.getLoopDepth() < result.getLoopDepth()) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
713 result = dom;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
714 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
715 cur = dom;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
716 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
717 return result;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
718 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
719
5583
8f529640e430 fix to SchedulePhase: correctly handle outer frame states that take a phi from the
Lukas Stadler <lukas.stadler@jku.at>
parents: 5541
diff changeset
720 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
721 * Passes all blocks that a specific usage of a node is in to a given closure. This is more
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
722 * complex than just taking the usage's block because of of PhiNodes and FrameStates.
14763
a6c1c3eb20c4 transition to JDK8
Doug Simon <doug.simon@oracle.com>
parents: 14734
diff changeset
723 *
5583
8f529640e430 fix to SchedulePhase: correctly handle outer frame states that take a phi from the
Lukas Stadler <lukas.stadler@jku.at>
parents: 5541
diff changeset
724 * @param node the node that needs to be scheduled
8f529640e430 fix to SchedulePhase: correctly handle outer frame states that take a phi from the
Lukas Stadler <lukas.stadler@jku.at>
parents: 5541
diff changeset
725 * @param usage the usage whose blocks need to be considered
8f529640e430 fix to SchedulePhase: correctly handle outer frame states that take a phi from the
Lukas Stadler <lukas.stadler@jku.at>
parents: 5541
diff changeset
726 * @param closure the closure that will be called for each block
8f529640e430 fix to SchedulePhase: correctly handle outer frame states that take a phi from the
Lukas Stadler <lukas.stadler@jku.at>
parents: 5541
diff changeset
727 */
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
728 private void blocksForUsage(ScheduledNode node, Node usage, BlockClosure closure, SchedulingStrategy strategy) {
8950
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
729 if (node instanceof PhiNode) {
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
730 throw new SchedulingError(node.toString());
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
731 }
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
732
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
733 if (usage instanceof PhiNode) {
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
734 // An input to a PhiNode is used at the end of the predecessor block that corresponds to
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
735 // the PhiNode input.
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
736 // One PhiNode can use an input multiple times, the closure will be called for each
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
737 // usage.
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
738 PhiNode phi = (PhiNode) usage;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
739 MergeNode merge = phi.merge();
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
740 Block mergeBlock = cfg.getNodeToBlock().get(merge);
8950
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
741 if (mergeBlock == null) {
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
742 throw new SchedulingError("no block for merge %s", merge.toString(Verbosity.Id));
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
743 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
744 for (int i = 0; i < phi.valueCount(); ++i) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
745 if (phi.valueAt(i) == node) {
7499
ca3e5df0e6cf Small clean up of access to predecessor/successor of blocks.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6670
diff changeset
746 if (mergeBlock.getPredecessorCount() <= i) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
747 TTY.println(merge.toString());
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
748 TTY.println(phi.toString());
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
749 TTY.println(merge.cfgPredecessors().toString());
4614
a3882fd1ae61 Make it possible to have multiple LoopEnds per LoopBegin
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 4525
diff changeset
750 TTY.println(mergeBlock.getPredecessors().toString());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
751 TTY.println(phi.inputs().toString());
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
752 TTY.println("value count: " + phi.valueCount());
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
753 }
4614
a3882fd1ae61 Make it possible to have multiple LoopEnds per LoopBegin
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 4525
diff changeset
754 closure.apply(mergeBlock.getPredecessors().get(i));
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
755 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
756 }
5598
a9b615da0cba removed delta-encoding of VirtualObjectState
Lukas Stadler <lukas.stadler@jku.at>
parents: 5591
diff changeset
757 } else if (usage instanceof VirtualState) {
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
758 // The following logic does not work if node is a PhiNode, but this method is never
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
759 // called for PhiNodes.
5598
a9b615da0cba removed delta-encoding of VirtualObjectState
Lukas Stadler <lukas.stadler@jku.at>
parents: 5591
diff changeset
760 for (Node unscheduledUsage : usage.usages()) {
a9b615da0cba removed delta-encoding of VirtualObjectState
Lukas Stadler <lukas.stadler@jku.at>
parents: 5591
diff changeset
761 if (unscheduledUsage instanceof VirtualState) {
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
762 // If a FrameState is an outer FrameState this method behaves as if the inner
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
763 // FrameState was the actual usage, by recursing.
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
764 blocksForUsage(node, unscheduledUsage, closure, strategy);
15145
df2ef5204f2b Remove AbstractBeginNode, move the framestate from AbstractBeginNode to BeginStateSplitNode.
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 15107
diff changeset
765 } else if (unscheduledUsage instanceof BeginNode) {
11460
ac2bddbe3b51 SchedulePhase: schedule inputs of framestates which are attached to AbstractBeginNodes to the dominator (not just for MergeNodes)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10925
diff changeset
766 // Only FrameStates can be connected to BeginNodes.
8950
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
767 if (!(usage instanceof FrameState)) {
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
768 throw new SchedulingError(usage.toString());
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
769 }
14534
ccf090d3be47 new graph ordering assertion mechanism
Lukas Stadler <lukas.stadler@oracle.com>
parents: 13729
diff changeset
770 if (unscheduledUsage instanceof StartNode) {
ccf090d3be47 new graph ordering assertion mechanism
Lukas Stadler <lukas.stadler@oracle.com>
parents: 13729
diff changeset
771 closure.apply(cfg.getNodeToBlock().get(unscheduledUsage));
ccf090d3be47 new graph ordering assertion mechanism
Lukas Stadler <lukas.stadler@oracle.com>
parents: 13729
diff changeset
772 } else {
ccf090d3be47 new graph ordering assertion mechanism
Lukas Stadler <lukas.stadler@oracle.com>
parents: 13729
diff changeset
773 // If a FrameState belongs to a BeginNode then it's inputs will be placed at
ccf090d3be47 new graph ordering assertion mechanism
Lukas Stadler <lukas.stadler@oracle.com>
parents: 13729
diff changeset
774 // the common dominator of all EndNodes.
ccf090d3be47 new graph ordering assertion mechanism
Lukas Stadler <lukas.stadler@oracle.com>
parents: 13729
diff changeset
775 for (Node pred : unscheduledUsage.cfgPredecessors()) {
ccf090d3be47 new graph ordering assertion mechanism
Lukas Stadler <lukas.stadler@oracle.com>
parents: 13729
diff changeset
776 closure.apply(cfg.getNodeToBlock().get(pred));
ccf090d3be47 new graph ordering assertion mechanism
Lukas Stadler <lukas.stadler@oracle.com>
parents: 13729
diff changeset
777 }
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
778 }
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
779 } else {
13293
5215f94f94ec GRAAL-632: Clarify difference between states managed by StateSplit and DeoptimizingNode
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 13153
diff changeset
780 // For the time being, FrameStates can only be connected to NodeWithState.
8950
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
781 if (!(usage instanceof FrameState)) {
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
782 throw new SchedulingError(usage.toString());
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
783 }
11787
4fc75b6ca3dd Introduce NodeWithState for nodes that hold some VirtualState. Use this interface in the required special cases (Scheduling and PEA)
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 11501
diff changeset
784 if (!(unscheduledUsage instanceof NodeWithState)) {
8950
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
785 throw new SchedulingError(unscheduledUsage.toString());
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
786 }
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
787 // Otherwise: Put the input into the same block as the usage.
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
788 assignBlockToNode((ScheduledNode) unscheduledUsage, strategy);
5598
a9b615da0cba removed delta-encoding of VirtualObjectState
Lukas Stadler <lukas.stadler@jku.at>
parents: 5591
diff changeset
789 closure.apply(cfg.getNodeToBlock().get(unscheduledUsage));
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
790 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
791 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
792 } else {
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
793 // All other types of usages: Put the input into the same block as the usage.
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
794 assignBlockToNode((ScheduledNode) usage, strategy);
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
795 closure.apply(cfg.getNodeToBlock().get(usage));
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
796 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
797 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
798
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
799 private void ensureScheduledUsages(Node node, SchedulingStrategy strategy) {
12570
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
800 if (node.recordsUsages()) {
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
801 for (Node usage : node.usages().filter(ScheduledNode.class)) {
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
802 assignBlockToNode((ScheduledNode) usage, strategy);
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
803 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
804 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
805 // now true usages are ready
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
806 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
807
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
808 private void sortNodesWithinBlocks(StructuredGraph graph, SchedulingStrategy strategy) {
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
809 NodeBitMap visited = graph.createNodeBitMap();
10921
b73121a215f7 NewMemoryAwareScheduling: create nodebitmap once per graph (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10920
diff changeset
810 NodeBitMap beforeLastLocation = graph.createNodeBitMap();
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
811 for (Block b : cfg.getBlocks()) {
10921
b73121a215f7 NewMemoryAwareScheduling: create nodebitmap once per graph (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10920
diff changeset
812 sortNodesWithinBlock(b, visited, beforeLastLocation, strategy);
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
813 assert noDuplicatedNodesInBlock(b) : "duplicated nodes in " + b;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
814 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
815 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
816
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
817 private boolean noDuplicatedNodesInBlock(Block b) {
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
818 List<ScheduledNode> list = blockToNodesMap.get(b);
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
819 HashSet<ScheduledNode> hashset = new HashSet<>(list);
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
820 return list.size() == hashset.size();
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
821 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
822
10921
b73121a215f7 NewMemoryAwareScheduling: create nodebitmap once per graph (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10920
diff changeset
823 private void sortNodesWithinBlock(Block b, NodeBitMap visited, NodeBitMap beforeLastLocation, SchedulingStrategy strategy) {
8950
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
824 if (visited.isMarked(b.getBeginNode()) || cfg.blockFor(b.getBeginNode()) != b) {
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
825 throw new SchedulingError();
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
826 }
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
827 if (visited.isMarked(b.getEndNode()) || cfg.blockFor(b.getEndNode()) != b) {
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
828 throw new SchedulingError();
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
829 }
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
830
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
831 List<ScheduledNode> sortedInstructions;
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
832 switch (strategy) {
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
833 case EARLIEST:
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
834 sortedInstructions = sortNodesWithinBlockEarliest(b, visited);
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
835 break;
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
836 case LATEST:
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
837 case LATEST_OUT_OF_LOOPS:
10921
b73121a215f7 NewMemoryAwareScheduling: create nodebitmap once per graph (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10920
diff changeset
838 sortedInstructions = sortNodesWithinBlockLatest(b, visited, beforeLastLocation);
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
839 break;
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
840 default:
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
841 throw new GraalInternalError("unknown scheduling strategy");
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
842 }
10922
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
843 assert filterSchedulableNodes(blockToNodesMap.get(b)).size() == removeProxies(sortedInstructions).size() : "sorted block does not contain the same amount of nodes: " +
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
844 filterSchedulableNodes(blockToNodesMap.get(b)) + " vs. " + removeProxies(sortedInstructions);
10890
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
845 assert sameOrderForFixedNodes(blockToNodesMap.get(b), sortedInstructions) : "fixed nodes in sorted block are not in the same order";
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
846 blockToNodesMap.put(b, sortedInstructions);
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
847 }
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
848
10922
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
849 private static List<ScheduledNode> removeProxies(List<ScheduledNode> list) {
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
850 List<ScheduledNode> result = new ArrayList<>();
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
851 for (ScheduledNode n : list) {
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
852 if (!(n instanceof ProxyNode)) {
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
853 result.add(n);
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
854 }
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
855 }
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
856 return result;
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
857 }
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
858
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
859 private static List<ScheduledNode> filterSchedulableNodes(List<ScheduledNode> list) {
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
860 List<ScheduledNode> result = new ArrayList<>();
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
861 for (ScheduledNode n : list) {
11501
a116fb4875a6 SchedulePhase: remove special handling of localnodes
Bernhard Urban <bernhard.urban@jku.at>
parents: 11460
diff changeset
862 if (!(n instanceof PhiNode)) {
10922
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
863 result.add(n);
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
864 }
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
865 }
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
866 return result;
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
867 }
1d1675f18e85 Scheduling: add assert about nodes in a block after sorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10921
diff changeset
868
10890
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
869 private static boolean sameOrderForFixedNodes(List<ScheduledNode> fixed, List<ScheduledNode> sorted) {
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
870 Iterator<ScheduledNode> fixedIterator = fixed.iterator();
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
871 Iterator<ScheduledNode> sortedIterator = sorted.iterator();
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
872
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
873 while (sortedIterator.hasNext()) {
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
874 ScheduledNode sortedCurrent = sortedIterator.next();
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
875 if (sortedCurrent instanceof FixedNode) {
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
876 if (!(fixedIterator.hasNext() && fixedIterator.next() == sortedCurrent)) {
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
877 return false;
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
878 }
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
879 }
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
880 }
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
881
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
882 while (fixedIterator.hasNext()) {
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
883 if (fixedIterator.next() instanceof FixedNode) {
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
884 return false;
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
885 }
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
886 }
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
887
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
888 return true;
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
889 }
2cdd22e1ac5e SchedulingPhase: check if fixed nodes have the same order before and after sorting a block
Bernhard Urban <bernhard.urban@jku.at>
parents: 10609
diff changeset
890
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
891 private static class SortState {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
892 private Block block;
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
893 private NodeBitMap visited;
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
894 private NodeBitMap beforeLastLocation;
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
895 private List<ScheduledNode> sortedInstructions;
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
896 private List<FloatingReadNode> reads;
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
897
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
898 SortState(Block block, NodeBitMap visited, NodeBitMap beforeLastLocation, List<ScheduledNode> sortedInstructions) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
899 this.block = block;
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
900 this.visited = visited;
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
901 this.beforeLastLocation = beforeLastLocation;
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
902 this.sortedInstructions = sortedInstructions;
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
903 this.reads = null;
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
904 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
905
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
906 public Block currentBlock() {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
907 return block;
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
908 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
909
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
910 void markVisited(Node n) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
911 visited.mark(n);
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
912 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
913
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
914 boolean isVisited(Node n) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
915 return visited.isMarked(n);
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
916 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
917
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
918 void markBeforeLastLocation(FloatingReadNode n) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
919 beforeLastLocation.mark(n);
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
920 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
921
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
922 void clearBeforeLastLocation(FloatingReadNode frn) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
923 beforeLastLocation.clear(frn);
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
924 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
925
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
926 boolean isBeforeLastLocation(FloatingReadNode n) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
927 return beforeLastLocation.isMarked(n);
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
928 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
929
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
930 void addRead(FloatingReadNode n) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
931 if (reads == null) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
932 reads = new ArrayList<>();
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
933 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
934 reads.add(n);
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
935 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
936
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
937 int readsSize() {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
938 if (reads == null) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
939 return 0;
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
940 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
941 return reads.size();
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
942 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
943
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
944 void removeRead(ScheduledNode i) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
945 assert reads != null;
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
946 reads.remove(i);
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
947 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
948
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
949 List<FloatingReadNode> readsSnapshot() {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
950 assert reads != null;
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
951 return new ArrayList<>(reads);
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
952 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
953
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
954 List<ScheduledNode> getSortedInstructions() {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
955 return sortedInstructions;
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
956 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
957
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
958 boolean containsInstruction(ScheduledNode i) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
959 return sortedInstructions.contains(i);
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
960 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
961
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
962 void addInstruction(ScheduledNode i) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
963 sortedInstructions.add(i);
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
964 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
965 }
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
966
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
967 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
968 * Sorts the nodes within a block by adding the nodes to a list in a post-order iteration over
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
969 * all inputs. This means that a node is added to the list after all its inputs have been
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
970 * processed.
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
971 */
10921
b73121a215f7 NewMemoryAwareScheduling: create nodebitmap once per graph (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10920
diff changeset
972 private List<ScheduledNode> sortNodesWithinBlockLatest(Block b, NodeBitMap visited, NodeBitMap beforeLastLocation) {
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
973 SortState state = new SortState(b, visited, beforeLastLocation, new ArrayList<>(blockToNodesMap.get(b).size() + 2));
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
974 List<ScheduledNode> instructions = blockToNodesMap.get(b);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
975
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
976 if (memsched == MemoryScheduling.OPTIMAL) {
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
977 for (ScheduledNode i : instructions) {
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
978 if (i instanceof FloatingReadNode) {
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
979 FloatingReadNode frn = (FloatingReadNode) i;
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
980 if (frn.location().getLocationIdentity() != FINAL_LOCATION) {
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
981 state.addRead(frn);
12722
b87c2f34e0e0 Maintain lastLocationAccess in WriteNode.
Roland Schatz <roland.schatz@oracle.com>
parents: 12721
diff changeset
982 if (nodesFor(b).contains(frn.getLastLocationAccess())) {
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
983 assert !state.isBeforeLastLocation(frn);
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
984 state.markBeforeLastLocation(frn);
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
985 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
986 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
987 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
988 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
989 }
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
990
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
991 for (ScheduledNode i : instructions) {
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
992 addToLatestSorting(i, state);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
993 }
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
994 assert state.readsSize() == 0 : "not all reads are scheduled";
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
995
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
996 // Make sure that last node gets really last (i.e. when a frame state successor hangs off
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
997 // it).
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
998 List<ScheduledNode> sortedInstructions = state.getSortedInstructions();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
999 Node lastSorted = sortedInstructions.get(sortedInstructions.size() - 1);
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
1000 if (lastSorted != b.getEndNode()) {
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
1001 int idx = sortedInstructions.indexOf(b.getEndNode());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1002 boolean canNotMove = false;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1003 for (int i = idx + 1; i < sortedInstructions.size(); i++) {
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
1004 if (sortedInstructions.get(i).inputs().contains(b.getEndNode())) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1005 canNotMove = true;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1006 break;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1007 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1008 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1009 if (canNotMove) {
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
1010 if (b.getEndNode() instanceof ControlSplitNode) {
15193
96bb07a5d667 Spit up and move GraalInternalError.
Josef Eisl <josef.eisl@jku.at>
parents: 15192
diff changeset
1011 throw new GraalGraphInternalError("Schedule is not possible : needs to move a node after the last node of the block which can not be move").addContext(lastSorted).addContext(
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
1012 b.getEndNode());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1013 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1014
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7499
diff changeset
1015 // b.setLastNode(lastSorted);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1016 } else {
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
1017 sortedInstructions.remove(b.getEndNode());
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4413
diff changeset
1018 sortedInstructions.add(b.getEndNode());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1019 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1020 }
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1021 return sortedInstructions;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1022 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1023
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1024 private void processKillLocation(Node node, LocationIdentity identity, SortState state) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1025 for (FloatingReadNode frn : state.readsSnapshot()) {
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1026 LocationIdentity readLocation = frn.location().getLocationIdentity();
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1027 assert readLocation != FINAL_LOCATION;
12722
b87c2f34e0e0 Maintain lastLocationAccess in WriteNode.
Roland Schatz <roland.schatz@oracle.com>
parents: 12721
diff changeset
1028 if (frn.getLastLocationAccess() == node) {
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1029 assert identity == ANY_LOCATION || readLocation == identity : "location doesn't match: " + readLocation + ", " + identity;
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1030 state.clearBeforeLastLocation(frn);
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1031 } else if (!state.isBeforeLastLocation(frn) && (readLocation == identity || (node != getCFG().graph.start() && ANY_LOCATION == identity))) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1032 state.removeRead(frn);
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1033 addToLatestSorting(frn, state);
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1034 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1035 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1036 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1037
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1038 private void addUnscheduledToLatestSorting(VirtualState state, SortState sortState) {
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
1039 if (state != null) {
5598
a9b615da0cba removed delta-encoding of VirtualObjectState
Lukas Stadler <lukas.stadler@jku.at>
parents: 5591
diff changeset
1040 // UnscheduledNodes should never be marked as visited.
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1041 if (sortState.isVisited(state)) {
8950
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
1042 throw new SchedulingError();
43fb04e78250 modified (some) checks in SchedulePhase to raise a SchedulingError instead of an AssertionError
Doug Simon <doug.simon@oracle.com>
parents: 8920
diff changeset
1043 }
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
1044
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
1045 for (Node input : state.inputs()) {
5598
a9b615da0cba removed delta-encoding of VirtualObjectState
Lukas Stadler <lukas.stadler@jku.at>
parents: 5591
diff changeset
1046 if (input instanceof VirtualState) {
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1047 addUnscheduledToLatestSorting((VirtualState) input, sortState);
13327
c258331fdde6 removed support for external nodes (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 13299
diff changeset
1048 } else {
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1049 addToLatestSorting((ScheduledNode) input, sortState);
5591
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
1050 }
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
1051 }
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
1052 }
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
1053 }
d52edd1af4c4 SchedulePhase doesn't schedule FrameStates, added documentation, cleanups
Lukas Stadler <lukas.stadler@jku.at>
parents: 5583
diff changeset
1054
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1055 private void addToLatestSorting(ScheduledNode i, SortState state) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1056 if (i == null || state.isVisited(i) || cfg.getNodeToBlock().get(i) != state.currentBlock() || i instanceof PhiNode) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1057 return;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1058 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1059
14734
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14534
diff changeset
1060 FrameState stateAfter = null;
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14534
diff changeset
1061 if (i instanceof StateSplit) {
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14534
diff changeset
1062 stateAfter = ((StateSplit) i).stateAfter();
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14534
diff changeset
1063 }
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14534
diff changeset
1064
15284
9b122a4d2e94 correctly schedule loop proxies
Lukas Stadler <lukas.stadler@oracle.com>
parents: 15259
diff changeset
1065 if (i instanceof LoopExitNode) {
9b122a4d2e94 correctly schedule loop proxies
Lukas Stadler <lukas.stadler@oracle.com>
parents: 15259
diff changeset
1066 for (ProxyNode proxy : ((LoopExitNode) i).proxies()) {
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1067 addToLatestSorting(proxy, state);
15284
9b122a4d2e94 correctly schedule loop proxies
Lukas Stadler <lukas.stadler@oracle.com>
parents: 15259
diff changeset
1068 }
9b122a4d2e94 correctly schedule loop proxies
Lukas Stadler <lukas.stadler@oracle.com>
parents: 15259
diff changeset
1069 }
9b122a4d2e94 correctly schedule loop proxies
Lukas Stadler <lukas.stadler@oracle.com>
parents: 15259
diff changeset
1070
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1071 for (Node input : i.inputs()) {
10891
8c0ab217ed00 Scheduling: remove dead code in addToLatestSorting
Bernhard Urban <bernhard.urban@jku.at>
parents: 10890
diff changeset
1072 if (input instanceof FrameState) {
14734
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14534
diff changeset
1073 if (input != stateAfter) {
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1074 addUnscheduledToLatestSorting((FrameState) input, state);
14734
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14534
diff changeset
1075 }
13327
c258331fdde6 removed support for external nodes (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 13299
diff changeset
1076 } else {
15284
9b122a4d2e94 correctly schedule loop proxies
Lukas Stadler <lukas.stadler@oracle.com>
parents: 15259
diff changeset
1077 if (!(i instanceof ProxyNode && input instanceof LoopExitNode)) {
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1078 addToLatestSorting((ScheduledNode) input, state);
15284
9b122a4d2e94 correctly schedule loop proxies
Lukas Stadler <lukas.stadler@oracle.com>
parents: 15259
diff changeset
1079 }
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1080 }
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1081 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1082
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1083 if (memsched == MemoryScheduling.OPTIMAL && state.readsSize() != 0) {
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1084 if (i instanceof MemoryCheckpoint.Single) {
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1085 LocationIdentity identity = ((MemoryCheckpoint.Single) i).getLocationIdentity();
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1086 processKillLocation(i, identity, state);
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1087 } else if (i instanceof MemoryCheckpoint.Multi) {
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1088 for (LocationIdentity identity : ((MemoryCheckpoint.Multi) i).getLocationIdentities()) {
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1089 processKillLocation(i, identity, state);
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1090 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1091 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1092 assert MemoryCheckpoint.TypeAssertion.correctType(i);
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1093 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1094
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1095 addToLatestSorting((ScheduledNode) i.predecessor(), state);
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1096 state.markVisited(i);
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1097 addUnscheduledToLatestSorting(stateAfter, state);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1098
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1099 // Now predecessors and inputs are scheduled => we can add this node.
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1100 if (!state.containsInstruction(i)) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1101 state.addInstruction(i);
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1102 }
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1103
15423
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1104 if (state.readsSize() != 0 && i instanceof FloatingReadNode) {
81eee524bbec SchedulePhase: refactoring
Bernhard Urban <bernhard.urban@jku.at>
parents: 15422
diff changeset
1105 state.removeRead(i);
10896
8106edbdeac9 add NewMemoryAwareScheduling (GRAAL-159)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10894
diff changeset
1106 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1107 }
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1108
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1109 /**
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1110 * Sorts the nodes within a block by adding the nodes to a list in a post-order iteration over
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1111 * all usages. The resulting list is reversed to create an earliest-possible scheduling of
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1112 * nodes.
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1113 */
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1114 private List<ScheduledNode> sortNodesWithinBlockEarliest(Block b, NodeBitMap visited) {
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1115 List<ScheduledNode> sortedInstructions = new ArrayList<>(blockToNodesMap.get(b).size() + 2);
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1116 addToEarliestSorting(b, b.getEndNode(), sortedInstructions, visited);
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1117 Collections.reverse(sortedInstructions);
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1118 return sortedInstructions;
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1119 }
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1120
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1121 private void addToEarliestSorting(Block b, ScheduledNode i, List<ScheduledNode> sortedInstructions, NodeBitMap visited) {
8542
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1122 ScheduledNode instruction = i;
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1123 while (true) {
11501
a116fb4875a6 SchedulePhase: remove special handling of localnodes
Bernhard Urban <bernhard.urban@jku.at>
parents: 11460
diff changeset
1124 if (instruction == null || visited.isMarked(instruction) || cfg.getNodeToBlock().get(instruction) != b || instruction instanceof PhiNode) {
8542
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1125 return;
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1126 }
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1127
8542
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1128 visited.mark(instruction);
12570
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
1129 if (instruction.recordsUsages()) {
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
1130 for (Node usage : instruction.usages()) {
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
1131 if (usage instanceof VirtualState) {
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
1132 // only fixed nodes can have VirtualState -> no need to schedule them
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1133 } else {
12570
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
1134 if (instruction instanceof LoopExitNode && usage instanceof ProxyNode) {
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
1135 // value proxies should be scheduled before the loopexit, not after
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
1136 } else {
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
1137 addToEarliestSorting(b, (ScheduledNode) usage, sortedInstructions, visited);
af39ea2dc39d made ConstantNodes (optionally) not record their usages (GRAAL-508)
Doug Simon <doug.simon@oracle.com>
parents: 11865
diff changeset
1138 }
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1139 }
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1140 }
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1141 }
8542
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1142
15145
df2ef5204f2b Remove AbstractBeginNode, move the framestate from AbstractBeginNode to BeginStateSplitNode.
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 15107
diff changeset
1143 if (instruction instanceof BeginNode) {
14763
a6c1c3eb20c4 transition to JDK8
Doug Simon <doug.simon@oracle.com>
parents: 14734
diff changeset
1144 ArrayList<ProxyNode> proxies = (instruction instanceof LoopExitNode) ? new ArrayList<>() : null;
8542
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1145 for (ScheduledNode inBlock : blockToNodesMap.get(b)) {
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1146 if (!visited.isMarked(inBlock)) {
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1147 if (inBlock instanceof ProxyNode) {
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1148 proxies.add((ProxyNode) inBlock);
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1149 } else {
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1150 addToEarliestSorting(b, inBlock, sortedInstructions, visited);
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1151 }
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1152 }
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1153 }
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1154 sortedInstructions.add(instruction);
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1155 if (proxies != null) {
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1156 sortedInstructions.addAll(proxies);
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1157 }
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1158 break;
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1159 } else {
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1160 sortedInstructions.add(instruction);
30a141944bcb tail recursion for SchedulePhase.addToEarliestSorting (fixes StackOverflowErrors)
Lukas Stadler <lukas.stadler@jku.at>
parents: 8394
diff changeset
1161 instruction = (ScheduledNode) instruction.predecessor();
7871
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1162 }
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1163 }
886990f21773 memory-aware scheduling phase
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
1164 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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1165 }