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annotate graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/alloc/LinearScan.java @ 16380:8057279ec60e

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LSRA spill optimization: use DOMINATOR_SPILL_MOVE_ID to mark moves.
author Josef Eisl <josef.eisl@jku.at>
date Wed, 02 Jul 2014 15:04:25 +0200
parents c5257d58b71a
children 45f92700119f
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1 /*
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2 * Copyright (c) 2009, 2014, 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.compiler.alloc;
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24
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25 import static com.oracle.graal.api.code.CodeUtil.*;
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26 import static com.oracle.graal.api.code.ValueUtil.*;
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27 import static com.oracle.graal.compiler.GraalDebugConfig.*;
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28 import static com.oracle.graal.compiler.common.cfg.AbstractBlock.*;
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29 import static com.oracle.graal.lir.LIRValueUtil.*;
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30
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31 import java.util.*;
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32
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33 import com.oracle.graal.alloc.*;
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34 import com.oracle.graal.api.code.*;
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35 import com.oracle.graal.api.meta.*;
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36 import com.oracle.graal.compiler.alloc.Interval.RegisterBinding;
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37 import com.oracle.graal.compiler.alloc.Interval.RegisterPriority;
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38 import com.oracle.graal.compiler.alloc.Interval.SpillState;
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39 import com.oracle.graal.compiler.common.*;
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40 import com.oracle.graal.compiler.common.cfg.*;
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41 import com.oracle.graal.compiler.gen.*;
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42 import com.oracle.graal.debug.*;
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43 import com.oracle.graal.debug.Debug.Scope;
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44 import com.oracle.graal.lir.*;
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45 import com.oracle.graal.lir.LIRInstruction.InstructionStateProcedure;
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46 import com.oracle.graal.lir.LIRInstruction.InstructionValueProcedure;
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47 import com.oracle.graal.lir.LIRInstruction.OperandFlag;
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48 import com.oracle.graal.lir.LIRInstruction.OperandMode;
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49 import com.oracle.graal.lir.LIRInstruction.ValueProcedure;
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50 import com.oracle.graal.lir.StandardOp.MoveOp;
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51 import com.oracle.graal.nodes.*;
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52 import com.oracle.graal.options.*;
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53 import com.oracle.graal.phases.util.*;
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54
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55 /**
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56 * An implementation of the linear scan register allocator algorithm described in <a
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57 * href="http://doi.acm.org/10.1145/1064979.1064998"
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58 * >"Optimized Interval Splitting in a Linear Scan Register Allocator"</a> by Christian Wimmer and
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59 * Hanspeter Moessenboeck.
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60 */
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61 public final class LinearScan {
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62
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63 final TargetDescription target;
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64 final LIR ir;
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65 final FrameMap frameMap;
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66 final RegisterAttributes[] registerAttributes;
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67 final Register[] registers;
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68
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69 boolean callKillsRegisters;
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70
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71 public static final int DOMINATOR_SPILL_MOVE_ID = -2;
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72 private static final int SPLIT_INTERVALS_CAPACITY_RIGHT_SHIFT = 1;
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73
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74 public static class Options {
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75 // @formatter:off
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76 @Option(help = "Enable spill position optimization")
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77 public static final OptionValue<Boolean> LSRAOptimizeSpillPosition = new OptionValue<>(true);
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78 // @formatter:on
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79 }
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80
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81 public static class BlockData {
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82
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83 /**
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84 * Bit map specifying which operands are live upon entry to this block. These are values
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85 * used in this block or any of its successors where such value are not defined in this
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86 * block. The bit index of an operand is its {@linkplain LinearScan#operandNumber(Value)
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87 * operand number}.
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88 */
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89 public BitSet liveIn;
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90
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91 /**
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92 * Bit map specifying which operands are live upon exit from this block. These are values
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93 * used in a successor block that are either defined in this block or were live upon entry
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94 * to this block. The bit index of an operand is its
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95 * {@linkplain LinearScan#operandNumber(Value) operand number}.
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96 */
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97 public BitSet liveOut;
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98
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99 /**
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100 * Bit map specifying which operands are used (before being defined) in this block. That is,
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101 * these are the values that are live upon entry to the block. The bit index of an operand
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102 * is its {@linkplain LinearScan#operandNumber(Value) operand number}.
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103 */
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104 public BitSet liveGen;
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105
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106 /**
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107 * Bit map specifying which operands are defined/overwritten in this block. The bit index of
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108 * an operand is its {@linkplain LinearScan#operandNumber(Value) operand number}.
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109 */
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110 public BitSet liveKill;
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111 }
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112
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113 public final BlockMap<BlockData> blockData;
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114
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115 /**
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116 * List of blocks in linear-scan order. This is only correct as long as the CFG does not change.
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117 */
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118 final List<? extends AbstractBlock<?>> sortedBlocks;
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119
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120 /**
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121 * Map from {@linkplain #operandNumber(Value) operand numbers} to intervals.
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122 */
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123 Interval[] intervals;
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124
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125 /**
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126 * The number of valid entries in {@link #intervals}.
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127 */
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128 int intervalsSize;
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129
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130 /**
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131 * The index of the first entry in {@link #intervals} for a
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132 * {@linkplain #createDerivedInterval(Interval) derived interval}.
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133 */
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134 int firstDerivedIntervalIndex = -1;
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135
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136 /**
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137 * Intervals sorted by {@link Interval#from()}.
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138 */
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139 Interval[] sortedIntervals;
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140
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141 /**
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142 * Map from an instruction {@linkplain LIRInstruction#id id} to the instruction. Entries should
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143 * be retrieved with {@link #instructionForId(int)} as the id is not simply an index into this
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144 * array.
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145 */
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146 LIRInstruction[] opIdToInstructionMap;
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147
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148 /**
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149 * Map from an instruction {@linkplain LIRInstruction#id id} to the {@linkplain AbstractBlock
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150 * block} containing the instruction. Entries should be retrieved with {@link #blockForId(int)}
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151 * as the id is not simply an index into this array.
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152 */
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153 AbstractBlock<?>[] opIdToBlockMap;
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154
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155 /**
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156 * Bit set for each variable that is contained in each loop.
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157 */
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158 BitMap2D intervalInLoop;
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159
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160 /**
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161 * The {@linkplain #operandNumber(Value) number} of the first variable operand allocated.
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162 */
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163 private final int firstVariableNumber;
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164
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165 public LinearScan(TargetDescription target, LIR ir, FrameMap frameMap) {
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166 this.target = target;
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167 this.ir = ir;
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168 this.frameMap = frameMap;
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169 this.sortedBlocks = ir.linearScanOrder();
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170 this.registerAttributes = frameMap.registerConfig.getAttributesMap();
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171
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172 this.registers = target.arch.getRegisters();
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173 this.firstVariableNumber = registers.length;
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174 this.blockData = new BlockMap<>(ir.getControlFlowGraph());
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175 }
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176
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177 public int getFirstLirInstructionId(AbstractBlock<?> block) {
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178 int result = ir.getLIRforBlock(block).get(0).id();
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179 assert result >= 0;
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180 return result;
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181 }
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182
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183 public int getLastLirInstructionId(AbstractBlock<?> block) {
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184 List<LIRInstruction> instructions = ir.getLIRforBlock(block);
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185 int result = instructions.get(instructions.size() - 1).id();
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186 assert result >= 0;
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187 return result;
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188 }
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189
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190 public static boolean isVariableOrRegister(Value value) {
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191 return isVariable(value) || isRegister(value);
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192 }
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193
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194 /**
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195 * Converts an operand (variable or register) to an index in a flat address space covering all
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196 * the {@linkplain Variable variables} and {@linkplain RegisterValue registers} being processed
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197 * by this allocator.
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198 */
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199 private int operandNumber(Value operand) {
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200 if (isRegister(operand)) {
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201 int number = asRegister(operand).number;
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202 assert number < firstVariableNumber;
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203 return number;
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204 }
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205 assert isVariable(operand) : operand;
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206 return firstVariableNumber + ((Variable) operand).index;
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207 }
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208
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209 /**
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210 * Gets the number of operands. This value will increase by 1 for new variable.
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diff changeset
211 */
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diff changeset
212 private int operandSize() {
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213 return firstVariableNumber + ir.numVariables();
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214 }
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215
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216 /**
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217 * Gets the highest operand number for a register operand. This value will never change.
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diff changeset
218 */
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219 public int maxRegisterNumber() {
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diff changeset
220 return firstVariableNumber - 1;
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diff changeset
221 }
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diff changeset
222
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diff changeset
223 static final IntervalPredicate IS_PRECOLORED_INTERVAL = new IntervalPredicate() {
4206
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diff changeset
224
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225 @Override
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226 public boolean apply(Interval i) {
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227 return isRegister(i.operand);
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228 }
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229 };
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230
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diff changeset
231 static final IntervalPredicate IS_VARIABLE_INTERVAL = new IntervalPredicate() {
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diff changeset
232
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233 @Override
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234 public boolean apply(Interval i) {
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diff changeset
235 return isVariable(i.operand);
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236 }
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237 };
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238
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diff changeset
239 static final IntervalPredicate IS_STACK_INTERVAL = new IntervalPredicate() {
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diff changeset
240
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241 @Override
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242 public boolean apply(Interval i) {
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diff changeset
243 return !isRegister(i.operand);
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244 }
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245 };
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246
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247 /**
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248 * Gets an object describing the attributes of a given register according to this register
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diff changeset
249 * configuration.
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250 */
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b6617d13ea44 Dropping Ci* prefixes. Some additional renamings in the api.code interface.
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diff changeset
251 RegisterAttributes attributes(Register reg) {
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252 return registerAttributes[reg.number];
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253 }
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254
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255 void assignSpillSlot(Interval interval) {
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diff changeset
256 // assign the canonical spill slot of the parent (if a part of the interval
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257 // is already spilled) or allocate a new spill slot
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diff changeset
258 if (interval.canMaterialize()) {
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diff changeset
259 interval.assignLocation(Value.ILLEGAL);
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diff changeset
260 } else if (interval.spillSlot() != null) {
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diff changeset
261 interval.assignLocation(interval.spillSlot());
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262 } else {
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diff changeset
263 StackSlot slot = frameMap.allocateSpillSlot(interval.kind());
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diff changeset
264 interval.setSpillSlot(slot);
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diff changeset
265 interval.assignLocation(slot);
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266 }
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267 }
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268
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parents:
diff changeset
269 /**
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parents:
diff changeset
270 * Creates a new interval.
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diff changeset
271 *
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272 * @param operand the operand for the interval
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273 * @return the created interval
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parents:
diff changeset
274 */
9297
a5f2b9012865 Interval locations can only be AllocatableValues.
Roland Schatz <roland.schatz@oracle.com>
parents: 8402
diff changeset
275 Interval createInterval(AllocatableValue operand) {
4183
9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class.
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4181
diff changeset
276 assert isLegal(operand);
3733
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diff changeset
277 int operandNumber = operandNumber(operand);
4352
5a84f5548fc4 More work on new debug infrastructure.
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diff changeset
278 Interval interval = new Interval(operand, operandNumber);
3733
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diff changeset
279 assert operandNumber < intervalsSize;
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280 assert intervals[operandNumber] == null;
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diff changeset
281 intervals[operandNumber] = interval;
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parents:
diff changeset
282 return interval;
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parents:
diff changeset
283 }
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284
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parents:
diff changeset
285 /**
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diff changeset
286 * Creates an interval as a result of splitting or spilling another interval.
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667710021ea1 removed methods in Indent that are redundant with those in Debug
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diff changeset
287 *
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288 * @param source an interval being split of spilled
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289 * @return a new interval derived from {@code source}
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diff changeset
290 */
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
291 Interval createDerivedInterval(Interval source) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
292 if (firstDerivedIntervalIndex == -1) {
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293 firstDerivedIntervalIndex = intervalsSize;
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parents:
diff changeset
294 }
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parents:
diff changeset
295 if (intervalsSize == intervals.length) {
15885
4d18c6bb6b3a LinearScan: Improve initialization and resizing of intervals array.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15884
diff changeset
296 intervals = Arrays.copyOf(intervals, intervals.length + (intervals.length >> SPLIT_INTERVALS_CAPACITY_RIGHT_SHIFT));
3733
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297 }
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diff changeset
298 intervalsSize++;
9425
3ec29630cfb4 Use register categories instead of register flags.
Roland Schatz <roland.schatz@oracle.com>
parents: 9422
diff changeset
299 Variable variable = new Variable(source.kind(), ir.nextVariable());
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
300
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
301 Interval interval = createInterval(variable);
3733
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302 assert intervals[intervalsSize - 1] == interval;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
303 return interval;
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parents:
diff changeset
304 }
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parents:
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305
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parents:
diff changeset
306 // access to block list (sorted in linear scan order)
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
307 int blockCount() {
7501
799dd373fcb6 Remove caching of sorted blocks in LSRA.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 7499
diff changeset
308 return sortedBlocks.size();
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
309 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
310
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
311 AbstractBlock<?> blockAt(int index) {
7501
799dd373fcb6 Remove caching of sorted blocks in LSRA.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 7499
diff changeset
312 return sortedBlocks.get(index);
3733
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parents:
diff changeset
313 }
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parents:
diff changeset
314
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
315 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
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diff changeset
316 * Gets the size of the {@link BlockData#liveIn} and {@link BlockData#liveOut} sets for a basic
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
317 * block. These sets do not include any operands allocated as a result of creating
5e3d1a68664e applied mx eclipseformat to all Java files
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parents: 7512
diff changeset
318 * {@linkplain #createDerivedInterval(Interval) derived intervals}.
3733
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parents:
diff changeset
319 */
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
320 int liveSetSize() {
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
321 return firstDerivedIntervalIndex == -1 ? operandSize() : firstDerivedIntervalIndex;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
322 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
323
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
324 int numLoops() {
15107
1bf700e19e84 Make Loop generic.
Josef Eisl <josef.eisl@jku.at>
parents: 15026
diff changeset
325 return ir.getControlFlowGraph().getLoops().size();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
326 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
327
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
328 boolean isIntervalInLoop(int interval, int loop) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
329 return intervalInLoop.at(interval, loop);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
330 }
e233f5660da4 Added Java files from Maxine project.
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parents:
diff changeset
331
15884
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
332 Interval intervalFor(int operandNumber) {
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
333 return intervals[operandNumber];
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
334 }
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
335
5539
bc647d8b0080 Renaming RiValue => Value.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5536
diff changeset
336 Interval intervalFor(Value operand) {
3733
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parents:
diff changeset
337 int operandNumber = operandNumber(operand);
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
338 assert operandNumber < intervalsSize;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
339 return intervals[operandNumber];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
340 }
e233f5660da4 Added Java files from Maxine project.
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diff changeset
341
9297
a5f2b9012865 Interval locations can only be AllocatableValues.
Roland Schatz <roland.schatz@oracle.com>
parents: 8402
diff changeset
342 Interval getOrCreateInterval(AllocatableValue operand) {
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
343 Interval ret = intervalFor(operand);
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
344 if (ret == null) {
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
345 return createInterval(operand);
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
346 } else {
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
347 return ret;
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
348 }
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
349 }
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
350
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
351 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
352 * Gets the highest instruction id allocated by this object.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
353 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
354 int maxOpId() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
355 assert opIdToInstructionMap.length > 0 : "no operations";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
356 return (opIdToInstructionMap.length - 1) << 1;
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
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
359 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
360 * Converts an {@linkplain LIRInstruction#id instruction id} to an instruction index. All LIR
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
361 * instructions in a method have an index one greater than their linear-scan order predecesor
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
362 * with the first instruction having an index of 0.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
363 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
364 static int opIdToIndex(int opId) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
365 return opId >> 1;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
366 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
367
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
368 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
369 * Retrieves the {@link LIRInstruction} based on its {@linkplain LIRInstruction#id id}.
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
370 *
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
371 * @param opId an instruction {@linkplain LIRInstruction#id id}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
372 * @return the instruction whose {@linkplain LIRInstruction#id} {@code == id}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
373 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
374 LIRInstruction instructionForId(int opId) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
375 assert isEven(opId) : "opId not even";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
376 LIRInstruction instr = opIdToInstructionMap[opIdToIndex(opId)];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
377 assert instr.id() == opId;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
378 return instr;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
379 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
380
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
381 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
382 * Gets the block containing a given instruction.
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
383 *
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
384 * @param opId an instruction {@linkplain LIRInstruction#id id}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
385 * @return the block containing the instruction denoted by {@code opId}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
386 */
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
387 AbstractBlock<?> blockForId(int opId) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
388 assert opIdToBlockMap.length > 0 && opId >= 0 && opId <= maxOpId() + 1 : "opId out of range";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
389 return opIdToBlockMap[opIdToIndex(opId)];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
390 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
391
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
392 boolean isBlockBegin(int opId) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
393 return opId == 0 || blockForId(opId) != blockForId(opId - 1);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
394 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
395
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
396 boolean coversBlockBegin(int opId1, int opId2) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
397 return blockForId(opId1) != blockForId(opId2);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
398 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
399
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
400 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
401 * Determines if an {@link LIRInstruction} destroys all caller saved registers.
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
402 *
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
403 * @param opId an instruction {@linkplain LIRInstruction#id id}
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
404 * @return {@code true} if the instruction denoted by {@code id} destroys all caller saved
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
405 * registers.
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
406 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
407 boolean hasCall(int opId) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
408 assert isEven(opId) : "opId not even";
9454
85a836bcd796 renaming for improved clarity: hasCall -> destroysCallerSavedRegisters
Doug Simon <doug.simon@oracle.com>
parents: 9425
diff changeset
409 return instructionForId(opId).destroysCallerSavedRegisters();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
410 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
411
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
412 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
413 * Eliminates moves from register to stack if the stack slot is known to be correct.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
414 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
415 void changeSpillDefinitionPos(Interval interval, int defPos) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
416 assert interval.isSplitParent() : "can only be called for split parents";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
417
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
418 switch (interval.spillState()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
419 case NoDefinitionFound:
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
420 assert interval.spillDefinitionPos() == -1 : "must no be set before";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
421 interval.setSpillDefinitionPos(defPos);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
422 interval.setSpillState(SpillState.NoSpillStore);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
423 break;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
424
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
425 case NoSpillStore:
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
426 assert defPos <= interval.spillDefinitionPos() : "positions are processed in reverse order when intervals are created";
6462
b3f5dc099f9d removed XIR
Doug Simon <doug.simon@oracle.com>
parents: 6411
diff changeset
427 if (defPos < interval.spillDefinitionPos() - 2) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
428 // second definition found, so no spill optimization possible for this interval
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
429 interval.setSpillState(SpillState.NoOptimization);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
430 } else {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
431 // two consecutive definitions (because of two-operand LIR form)
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
432 assert blockForId(defPos) == blockForId(interval.spillDefinitionPos()) : "block must be equal";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
433 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
434 break;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
435
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
436 case NoOptimization:
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
437 // nothing to do
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
438 break;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
439
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
440 default:
5547
b6617d13ea44 Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5542
diff changeset
441 throw new BailoutException("other states not allowed at this time");
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
442 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
443 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
444
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
445 // called during register allocation
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
446 void changeSpillState(Interval interval, int spillPos) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
447 switch (interval.spillState()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
448 case NoSpillStore: {
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4394
diff changeset
449 int defLoopDepth = blockForId(interval.spillDefinitionPos()).getLoopDepth();
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4394
diff changeset
450 int spillLoopDepth = blockForId(spillPos).getLoopDepth();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
451
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
452 if (defLoopDepth < spillLoopDepth) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
453 // the loop depth of the spilling position is higher then the loop depth
16360
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
454 // at the definition of the interval . move write to memory out of loop.
16362
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
455 if (Options.LSRAOptimizeSpillPosition.getValue()) {
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
456 // find best spill position in dominator the tree
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
457 interval.setSpillState(SpillState.SpillInDominator);
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
458 } else {
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
459 // store at definition of the interval
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
460 interval.setSpillState(SpillState.StoreAtDefinition);
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
461 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
462 } else {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
463 // the interval is currently spilled only once, so for now there is no
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
464 // reason to store the interval at the definition
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
465 interval.setSpillState(SpillState.OneSpillStore);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
466 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
467 break;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
468 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
469
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
470 case OneSpillStore: {
16362
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
471 if (Options.LSRAOptimizeSpillPosition.getValue()) {
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
472 // the interval is spilled more then once
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
473 interval.setSpillState(SpillState.SpillInDominator);
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
474 } else {
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
475 // it is better to store it to
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
476 // memory at the definition
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
477 interval.setSpillState(SpillState.StoreAtDefinition);
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
478 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
479 break;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
480 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
481
16359
f686fae77383 LSRA spill optimization: rename SpillInDominator.MultipleSpills to SpillState.SpillInDominator.
Josef Eisl <josef.eisl@jku.at>
parents: 16358
diff changeset
482 case SpillInDominator:
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
483 case StoreAtDefinition:
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
484 case StartInMemory:
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
485 case NoOptimization:
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
486 case NoDefinitionFound:
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
487 // nothing to do
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
488 break;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
489
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
490 default:
5547
b6617d13ea44 Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5542
diff changeset
491 throw new BailoutException("other states not allowed at this time");
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
492 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
493 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
494
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
495 abstract static class IntervalPredicate {
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
496
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
497 abstract boolean apply(Interval i);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
498 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
499
16379
c5257d58b71a LSRA spill optimization: backout changesets obsoleted by eager spill move placement.
Josef Eisl <josef.eisl@jku.at>
parents: 16378
diff changeset
500 private static final IntervalPredicate mustStoreAtDefinition = new IntervalPredicate() {
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
501
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
502 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
503 public boolean apply(Interval i) {
16379
c5257d58b71a LSRA spill optimization: backout changesets obsoleted by eager spill move placement.
Josef Eisl <josef.eisl@jku.at>
parents: 16378
diff changeset
504 return i.isSplitParent() && i.spillState() == SpillState.StoreAtDefinition;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
505 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
506 };
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
507
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
508 // called once before assignment of register numbers
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
509 void eliminateSpillMoves() {
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
510 try (Indent indent = Debug.logAndIndent("Eliminating unnecessary spill moves")) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
511
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
512 // collect all intervals that must be stored after their definition.
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
513 // the list is sorted by Interval.spillDefinitionPos
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
514 Interval interval;
16379
c5257d58b71a LSRA spill optimization: backout changesets obsoleted by eager spill move placement.
Josef Eisl <josef.eisl@jku.at>
parents: 16378
diff changeset
515 interval = createUnhandledLists(mustStoreAtDefinition, null).first;
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
516 if (DetailedAsserts.getValue()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
517 checkIntervals(interval);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
518 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
519
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
520 LIRInsertionBuffer insertionBuffer = new LIRInsertionBuffer();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
521 for (AbstractBlock<?> block : sortedBlocks) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
522 List<LIRInstruction> instructions = ir.getLIRforBlock(block);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
523 int numInst = instructions.size();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
524
16379
c5257d58b71a LSRA spill optimization: backout changesets obsoleted by eager spill move placement.
Josef Eisl <josef.eisl@jku.at>
parents: 16378
diff changeset
525 // iterate all instructions of the block. skip the first
c5257d58b71a LSRA spill optimization: backout changesets obsoleted by eager spill move placement.
Josef Eisl <josef.eisl@jku.at>
parents: 16378
diff changeset
526 // because it is always a label
c5257d58b71a LSRA spill optimization: backout changesets obsoleted by eager spill move placement.
Josef Eisl <josef.eisl@jku.at>
parents: 16378
diff changeset
527 for (int j = 1; j < numInst; j++) {
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
528 LIRInstruction op = instructions.get(j);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
529 int opId = op.id();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
530
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
531 if (opId == -1) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
532 MoveOp move = (MoveOp) op;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
533 // remove move from register to stack if the stack slot is guaranteed to be
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
534 // correct.
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
535 // only moves that have been inserted by LinearScan can be removed.
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
536 assert isVariable(move.getResult()) : "LinearScan inserts only moves to variables";
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
537
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
538 Interval curInterval = intervalFor(move.getResult());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
539
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
540 if (!isRegister(curInterval.location()) && curInterval.alwaysInMemory()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
541 // move target is a stack slot that is always correct, so eliminate
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
542 // instruction
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
543 if (Debug.isLogEnabled()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
544 Debug.log("eliminating move from interval %d to %d", operandNumber(move.getInput()), operandNumber(move.getResult()));
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
545 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
546 // null-instructions are deleted by assignRegNum
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
547 instructions.set(j, null);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
548 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
549
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
550 } else {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
551 // insert move from register to stack just after
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
552 // the beginning of the interval
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
553 assert interval == Interval.EndMarker || interval.spillDefinitionPos() >= opId : "invalid order";
16379
c5257d58b71a LSRA spill optimization: backout changesets obsoleted by eager spill move placement.
Josef Eisl <josef.eisl@jku.at>
parents: 16378
diff changeset
554 assert interval == Interval.EndMarker || (interval.isSplitParent() && interval.spillState() == SpillState.StoreAtDefinition) : "invalid interval";
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
555
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
556 while (interval != Interval.EndMarker && interval.spillDefinitionPos() == opId) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
557 if (!interval.canMaterialize()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
558 if (!insertionBuffer.initialized()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
559 // prepare insertion buffer (appended when all instructions in
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
560 // the block are processed)
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
561 insertionBuffer.init(instructions);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
562 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
563
16379
c5257d58b71a LSRA spill optimization: backout changesets obsoleted by eager spill move placement.
Josef Eisl <josef.eisl@jku.at>
parents: 16378
diff changeset
564 AllocatableValue fromLocation = interval.location();
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
565 AllocatableValue toLocation = canonicalSpillOpr(interval);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
566
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
567 assert isRegister(fromLocation) : "from operand must be a register but is: " + fromLocation + " toLocation=" + toLocation + " spillState=" + interval.spillState();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
568 assert isStackSlot(toLocation) : "to operand must be a stack slot";
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
569
16379
c5257d58b71a LSRA spill optimization: backout changesets obsoleted by eager spill move placement.
Josef Eisl <josef.eisl@jku.at>
parents: 16378
diff changeset
570 insertionBuffer.append(j + 1, ir.getSpillMoveFactory().createMove(toLocation, fromLocation));
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
571
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
572 Debug.log("inserting move after definition of interval %d to stack slot %s at opId %d", interval.operandNumber, interval.spillSlot(), opId);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
573 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
574 interval = interval.next;
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
575 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
576 }
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
577 } // end of instruction iteration
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
578
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
579 if (insertionBuffer.initialized()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
580 insertionBuffer.finish();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
581 }
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
582 } // end of block iteration
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
583
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
584 assert interval == Interval.EndMarker : "missed an interval";
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
585 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
586 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
587
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
588 private static void checkIntervals(Interval interval) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
589 Interval prev = null;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
590 Interval temp = interval;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
591 while (temp != Interval.EndMarker) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
592 assert temp.spillDefinitionPos() > 0 : "invalid spill definition pos";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
593 if (prev != null) {
16379
c5257d58b71a LSRA spill optimization: backout changesets obsoleted by eager spill move placement.
Josef Eisl <josef.eisl@jku.at>
parents: 16378
diff changeset
594 assert temp.from() >= prev.from() : "intervals not sorted";
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
595 assert temp.spillDefinitionPos() >= prev.spillDefinitionPos() : "when intervals are sorted by from : then they must also be sorted by spillDefinitionPos";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
596 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
597
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
598 assert temp.spillSlot() != null || temp.canMaterialize() : "interval has no spill slot assigned";
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
599 assert temp.spillDefinitionPos() >= temp.from() : "invalid order";
16379
c5257d58b71a LSRA spill optimization: backout changesets obsoleted by eager spill move placement.
Josef Eisl <josef.eisl@jku.at>
parents: 16378
diff changeset
600 assert temp.spillDefinitionPos() <= temp.from() + 2 : "only intervals defined once at their start-pos can be optimized";
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
601
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
602 Debug.log("interval %d (from %d to %d) must be stored at %d", temp.operandNumber, temp.from(), temp.to(), temp.spillDefinitionPos());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
603
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
604 prev = temp;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
605 temp = temp.next;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
606 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
607 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
608
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
609 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
610 * Numbers all instructions in all blocks. The numbering follows the
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
611 * {@linkplain ComputeBlockOrder linear scan order}.
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
612 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
613 void numberInstructions() {
15884
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
614
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
615 intervalsSize = operandSize();
15885
4d18c6bb6b3a LinearScan: Improve initialization and resizing of intervals array.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15884
diff changeset
616 intervals = new Interval[intervalsSize + (intervalsSize >> SPLIT_INTERVALS_CAPACITY_RIGHT_SHIFT)];
15884
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
617
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
618 ValueProcedure setVariableProc = new ValueProcedure() {
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
619
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
620 @Override
5539
bc647d8b0080 Renaming RiValue => Value.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5536
diff changeset
621 public Value doValue(Value value) {
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
622 if (isVariable(value)) {
15884
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
623 getOrCreateInterval(asVariable(value));
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
624 }
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
625 return value;
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
626 }
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
627 };
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
628
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
629 // Assign IDs to LIR nodes and build a mapping, lirOps, from ID to LIRInstruction node.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
630 int numInstructions = 0;
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
631 for (AbstractBlock<?> block : sortedBlocks) {
14806
a8723f1ff542 LIR renamed setter and getter functions.
Josef Eisl <josef.eisl@jku.at>
parents: 14789
diff changeset
632 numInstructions += ir.getLIRforBlock(block).size();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
633 }
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 // initialize with correct length
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
636 opIdToInstructionMap = new LIRInstruction[numInstructions];
14789
1596a21c4194 Move remaining Block references in LinearScan to AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14152
diff changeset
637 opIdToBlockMap = new AbstractBlock<?>[numInstructions];
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
638
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
639 int opId = 0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
640 int index = 0;
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
641 for (AbstractBlock<?> block : sortedBlocks) {
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4394
diff changeset
642 blockData.put(block, new BlockData());
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4394
diff changeset
643
14806
a8723f1ff542 LIR renamed setter and getter functions.
Josef Eisl <josef.eisl@jku.at>
parents: 14789
diff changeset
644 List<LIRInstruction> instructions = ir.getLIRforBlock(block);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
645
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
646 int numInst = instructions.size();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
647 for (int j = 0; j < numInst; j++) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
648 LIRInstruction op = instructions.get(j);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
649 op.setId(opId);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
650
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
651 opIdToInstructionMap[index] = op;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
652 opIdToBlockMap[index] = block;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
653 assert instructionForId(opId) == op : "must match";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
654
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
655 op.forEachTemp(setVariableProc);
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
656 op.forEachOutput(setVariableProc);
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
657
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
658 index++;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
659 opId += 2; // numbering of lirOps by two
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
660 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
661 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
662 assert index == numInstructions : "must match";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
663 assert (index << 1) == opId : "must match: " + (index << 1);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
664 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
665
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
666 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
667 * Computes local live sets (i.e. {@link BlockData#liveGen} and {@link BlockData#liveKill})
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
668 * separately for each block.
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
669 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
670 void computeLocalLiveSets() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
671 int liveSize = liveSetSize();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
672
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
673 intervalInLoop = new BitMap2D(operandSize(), numLoops());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
674
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
675 // iterate all blocks
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
676 for (final AbstractBlock<?> block : sortedBlocks) {
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
677 try (Indent indent = Debug.logAndIndent("compute local live sets for block %d", block.getId())) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
678
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
679 final BitSet liveGen = new BitSet(liveSize);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
680 final BitSet liveKill = new BitSet(liveSize);
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
681
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
682 List<LIRInstruction> instructions = ir.getLIRforBlock(block);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
683 int numInst = instructions.size();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
684
15887
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
685 ValueProcedure useProc = new ValueProcedure() {
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
686
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
687 @Override
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
688 protected Value doValue(Value operand) {
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
689 if (isVariable(operand)) {
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
690 int operandNum = operandNumber(operand);
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
691 if (!liveKill.get(operandNum)) {
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
692 liveGen.set(operandNum);
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
693 Debug.log("liveGen for operand %d", operandNum);
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
694 }
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
695 if (block.getLoop() != null) {
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
696 intervalInLoop.setBit(operandNum, block.getLoop().getIndex());
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
697 }
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
698 }
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
699
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
700 if (DetailedAsserts.getValue()) {
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
701 verifyInput(block, liveKill, operand);
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
702 }
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
703 return operand;
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
704 }
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
705 };
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
706 ValueProcedure stateProc = new ValueProcedure() {
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
707
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
708 @Override
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
709 public Value doValue(Value operand) {
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
710 int operandNum = operandNumber(operand);
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
711 if (!liveKill.get(operandNum)) {
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
712 liveGen.set(operandNum);
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
713 Debug.log("liveGen in state for operand %d", operandNum);
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
714 }
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
715 return operand;
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
716 }
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
717 };
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
718 ValueProcedure defProc = new ValueProcedure() {
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
719
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
720 @Override
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
721 public Value doValue(Value operand) {
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
722 if (isVariable(operand)) {
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
723 int varNum = operandNumber(operand);
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
724 liveKill.set(varNum);
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
725 Debug.log("liveKill for operand %d", varNum);
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
726 if (block.getLoop() != null) {
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
727 intervalInLoop.setBit(varNum, block.getLoop().getIndex());
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
728 }
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
729 }
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
730
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
731 if (DetailedAsserts.getValue()) {
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
732 // fixed intervals are never live at block boundaries, so
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
733 // they need not be processed in live sets
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
734 // process them only in debug mode so that this can be checked
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
735 verifyTemp(liveKill, operand);
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
736 }
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
737 return operand;
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
738 }
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
739 };
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
740
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
741 // iterate all instructions of the block
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
742 for (int j = 0; j < numInst; j++) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
743 final LIRInstruction op = instructions.get(j);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
744
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
745 try (Indent indent2 = Debug.logAndIndent("handle op %d", op.id())) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
746 op.forEachInput(useProc);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
747 op.forEachAlive(useProc);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
748 // Add uses of live locals from interpreter's point of view for proper debug
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
749 // information generation
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
750 op.forEachState(stateProc);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
751 op.forEachTemp(defProc);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
752 op.forEachOutput(defProc);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
753 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
754 } // end of instruction iteration
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
755
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
756 BlockData blockSets = blockData.get(block);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
757 blockSets.liveGen = liveGen;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
758 blockSets.liveKill = liveKill;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
759 blockSets.liveIn = new BitSet(liveSize);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
760 blockSets.liveOut = new BitSet(liveSize);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
761
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
762 Debug.log("liveGen B%d %s", block.getId(), blockSets.liveGen);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
763 Debug.log("liveKill B%d %s", block.getId(), blockSets.liveKill);
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
764
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
765 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
766 } // end of block iteration
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
767 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
768
5541
b4c406861c33 More renamings to drop Ri* prefix completely. Deleted graph.BitMap class and replaced with java.util.BitSet.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5540
diff changeset
769 private void verifyTemp(BitSet liveKill, Value operand) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
770 // fixed intervals are never live at block boundaries, so
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
771 // they need not be processed in live sets
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
772 // process them only in debug mode so that this can be checked
4183
9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class.
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4181
diff changeset
773 if (isRegister(operand)) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
774 if (isProcessed(operand)) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
775 liveKill.set(operandNumber(operand));
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
776 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
777 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
778 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
779
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
780 private void verifyInput(AbstractBlock<?> block, BitSet liveKill, Value operand) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
781 // fixed intervals are never live at block boundaries, so
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
782 // they need not be processed in live sets.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
783 // this is checked by these assertions to be sure about it.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
784 // the entry block may have incoming
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
785 // values in registers, which is ok.
14145
4ff08c0366ae Encapsulate LIR class fields.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 14142
diff changeset
786 if (isRegister(operand) && block != ir.getControlFlowGraph().getStartBlock()) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
787 if (isProcessed(operand)) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
788 assert liveKill.get(operandNumber(operand)) : "using fixed register that is not defined in this block";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
789 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
790 }
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
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
793 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
794 * Performs a backward dataflow analysis to compute global live sets (i.e.
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
795 * {@link BlockData#liveIn} and {@link BlockData#liveOut}) for each block.
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 void computeGlobalLiveSets() {
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
798 try (Indent indent = Debug.logAndIndent("compute global live sets")) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
799 int numBlocks = blockCount();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
800 boolean changeOccurred;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
801 boolean changeOccurredInBlock;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
802 int iterationCount = 0;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
803 BitSet liveOut = new BitSet(liveSetSize()); // scratch set for calculations
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
804
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
805 // Perform a backward dataflow analysis to compute liveOut and liveIn for each block.
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
806 // The loop is executed until a fixpoint is reached (no changes in an iteration)
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
807 do {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
808 changeOccurred = false;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
809
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
810 try (Indent indent2 = Debug.logAndIndent("new iteration %d", iterationCount)) {
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
811
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
812 // iterate all blocks in reverse order
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
813 for (int i = numBlocks - 1; i >= 0; i--) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
814 AbstractBlock<?> block = blockAt(i);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
815 BlockData blockSets = blockData.get(block);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
816
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
817 changeOccurredInBlock = false;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
818
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
819 // liveOut(block) is the union of liveIn(sux), for successors sux of block
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
820 int n = block.getSuccessorCount();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
821 if (n > 0) {
15850
9ce2ca72efef small cleanup in LinearScan
Lukas Stadler <lukas.stadler@oracle.com>
parents: 15534
diff changeset
822 liveOut.clear();
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
823 // block has successors
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
824 if (n > 0) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
825 for (AbstractBlock<?> successor : block.getSuccessors()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
826 liveOut.or(blockData.get(successor).liveIn);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
827 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
828 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
829
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
830 if (!blockSets.liveOut.equals(liveOut)) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
831 // A change occurred. Swap the old and new live out
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
832 // sets to avoid copying.
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
833 BitSet temp = blockSets.liveOut;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
834 blockSets.liveOut = liveOut;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
835 liveOut = temp;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
836
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
837 changeOccurred = true;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
838 changeOccurredInBlock = true;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
839 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
840 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
841
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
842 if (iterationCount == 0 || changeOccurredInBlock) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
843 // liveIn(block) is the union of liveGen(block) with (liveOut(block) &
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
844 // !liveKill(block))
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
845 // note: liveIn has to be computed only in first iteration
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
846 // or if liveOut has changed!
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
847 BitSet liveIn = blockSets.liveIn;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
848 liveIn.clear();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
849 liveIn.or(blockSets.liveOut);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
850 liveIn.andNot(blockSets.liveKill);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
851 liveIn.or(blockSets.liveGen);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
852
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
853 Debug.log("block %d: livein = %s, liveout = %s", block.getId(), liveIn, blockSets.liveOut);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
854 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
855 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
856 iterationCount++;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
857
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
858 if (changeOccurred && iterationCount > 50) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
859 throw new BailoutException("too many iterations in computeGlobalLiveSets");
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
860 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
861 }
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
862 } while (changeOccurred);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
863
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
864 if (DetailedAsserts.getValue()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
865 verifyLiveness();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
866 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
867
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
868 // check that the liveIn set of the first block is empty
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
869 AbstractBlock<?> startBlock = ir.getControlFlowGraph().getStartBlock();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
870 if (blockData.get(startBlock).liveIn.cardinality() != 0) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
871 if (DetailedAsserts.getValue()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
872 reportFailure(numBlocks);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
873 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
874 // bailout if this occurs in product mode.
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
875 throw new GraalInternalError("liveIn set of first block must be empty: " + blockData.get(startBlock).liveIn);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
876 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
877 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
878 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
879
14888
f6630873316b Rename NodeLIRGenerator (and related classes and interfaces) to NodeLIRBuilder.
Josef Eisl <josef.eisl@jku.at>
parents: 14871
diff changeset
880 private static NodeLIRBuilder getNodeLIRGeneratorFromDebugContext() {
14070
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
881 if (Debug.isEnabled()) {
14888
f6630873316b Rename NodeLIRGenerator (and related classes and interfaces) to NodeLIRBuilder.
Josef Eisl <josef.eisl@jku.at>
parents: 14871
diff changeset
882 NodeLIRBuilder lirGen = Debug.contextLookup(NodeLIRBuilder.class);
15026
d0294fa66a33 Backout 20b3db86b1fa.
Josef Eisl <josef.eisl@jku.at>
parents: 14973
diff changeset
883 assert lirGen != null;
14070
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
884 return lirGen;
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
885 }
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
886 return null;
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
887 }
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
888
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
889 private static ValueNode getValueForOperandFromDebugContext(Value value) {
14888
f6630873316b Rename NodeLIRGenerator (and related classes and interfaces) to NodeLIRBuilder.
Josef Eisl <josef.eisl@jku.at>
parents: 14871
diff changeset
890 NodeLIRBuilder gen = getNodeLIRGeneratorFromDebugContext();
14070
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
891 if (gen != null) {
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
892 return gen.valueForOperand(value);
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
893 }
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
894 return null;
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
895 }
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
896
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
897 private void reportFailure(int numBlocks) {
14109
85969b1aba78 Use a forceLog scope for LinearScan.reportFailure. Remove @SuppressWarnings on DebugScope.scope
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 14070
diff changeset
898 try (Scope s = Debug.forceLog()) {
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
899 try (Indent indent = Debug.logAndIndent("report failure")) {
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
900
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
901 BitSet startBlockLiveIn = blockData.get(ir.getControlFlowGraph().getStartBlock()).liveIn;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
902 try (Indent indent2 = Debug.logAndIndent("Error: liveIn set of first block must be empty (when this fails, variables are used before they are defined):")) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
903 for (int operandNum = startBlockLiveIn.nextSetBit(0); operandNum >= 0; operandNum = startBlockLiveIn.nextSetBit(operandNum + 1)) {
15884
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
904 Value operand = intervalFor(operandNum).operand;
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
905 Debug.log("var %d; operand=%s; node=%s", operandNum, operand, getValueForOperandFromDebugContext(operand));
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
906 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
907 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
908
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
909 // print some additional information to simplify debugging
14109
85969b1aba78 Use a forceLog scope for LinearScan.reportFailure. Remove @SuppressWarnings on DebugScope.scope
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 14070
diff changeset
910 for (int operandNum = startBlockLiveIn.nextSetBit(0); operandNum >= 0; operandNum = startBlockLiveIn.nextSetBit(operandNum + 1)) {
15884
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
911 Value operand = intervalFor(operandNum).operand;
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
912 try (Indent indent2 = Debug.logAndIndent("---- Detailed information for var %d; operand=%s; node=%s ----", operandNum, operand, getValueForOperandFromDebugContext(operand))) {
14109
85969b1aba78 Use a forceLog scope for LinearScan.reportFailure. Remove @SuppressWarnings on DebugScope.scope
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 14070
diff changeset
913
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
914 Deque<AbstractBlock<?>> definedIn = new ArrayDeque<>();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
915 HashSet<AbstractBlock<?>> usedIn = new HashSet<>();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
916 for (AbstractBlock<?> block : sortedBlocks) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
917 if (blockData.get(block).liveGen.get(operandNum)) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
918 usedIn.add(block);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
919 try (Indent indent3 = Debug.logAndIndent("used in block B%d", block.getId())) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
920 for (LIRInstruction ins : ir.getLIRforBlock(block)) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
921 try (Indent indent4 = Debug.logAndIndent("%d: %s", ins.id(), ins)) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
922 ins.forEachState(new ValueProcedure() {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
923
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
924 @Override
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
925 public Value doValue(Value liveStateOperand) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
926 Debug.log("operand=%s", liveStateOperand);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
927 return liveStateOperand;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
928 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
929 });
14109
85969b1aba78 Use a forceLog scope for LinearScan.reportFailure. Remove @SuppressWarnings on DebugScope.scope
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 14070
diff changeset
930 }
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
931 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
932 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
933 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
934 if (blockData.get(block).liveKill.get(operandNum)) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
935 definedIn.add(block);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
936 try (Indent indent3 = Debug.logAndIndent("defined in block B%d", block.getId())) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
937 for (LIRInstruction ins : ir.getLIRforBlock(block)) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
938 Debug.log("%d: %s", ins.id(), ins);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
939 }
14109
85969b1aba78 Use a forceLog scope for LinearScan.reportFailure. Remove @SuppressWarnings on DebugScope.scope
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 14070
diff changeset
940 }
85969b1aba78 Use a forceLog scope for LinearScan.reportFailure. Remove @SuppressWarnings on DebugScope.scope
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 14070
diff changeset
941 }
85969b1aba78 Use a forceLog scope for LinearScan.reportFailure. Remove @SuppressWarnings on DebugScope.scope
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 14070
diff changeset
942 }
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
943
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
944 int[] hitCount = new int[numBlocks];
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
945
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
946 while (!definedIn.isEmpty()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
947 AbstractBlock<?> block = definedIn.removeFirst();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
948 usedIn.remove(block);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
949 for (AbstractBlock<?> successor : block.getSuccessors()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
950 if (successor.isLoopHeader()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
951 if (!block.isLoopEnd()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
952 definedIn.add(successor);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
953 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
954 } else {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
955 if (++hitCount[successor.getId()] == successor.getPredecessorCount()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
956 definedIn.add(successor);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
957 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
958 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
959 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
960 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
961 try (Indent indent3 = Debug.logAndIndent("**** offending usages are in: ")) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
962 for (AbstractBlock<?> block : usedIn) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
963 Debug.log("B%d", block.getId());
12569
1c8d5a0891b5 improved error reporting in LSRA
Doug Simon <doug.simon@oracle.com>
parents: 11537
diff changeset
964 }
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
965 }
12569
1c8d5a0891b5 improved error reporting in LSRA
Doug Simon <doug.simon@oracle.com>
parents: 11537
diff changeset
966 }
1c8d5a0891b5 improved error reporting in LSRA
Doug Simon <doug.simon@oracle.com>
parents: 11537
diff changeset
967 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
968 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
969 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
970 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
971
7501
799dd373fcb6 Remove caching of sorted blocks in LSRA.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 7499
diff changeset
972 private void verifyLiveness() {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
973 // check that fixed intervals are not live at block boundaries
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
974 // (live set must be empty at fixed intervals)
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
975 for (AbstractBlock<?> block : sortedBlocks) {
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
976 for (int j = 0; j <= maxRegisterNumber(); j++) {
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4394
diff changeset
977 assert !blockData.get(block).liveIn.get(j) : "liveIn set of fixed register must be empty";
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4394
diff changeset
978 assert !blockData.get(block).liveOut.get(j) : "liveOut set of fixed register must be empty";
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4394
diff changeset
979 assert !blockData.get(block).liveGen.get(j) : "liveGen set of fixed register must be empty";
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
980 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
981 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
982 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
983
16094
c0b8d395368b Introduce LIRKind to accurately track oop references in backend.
Roland Schatz <roland.schatz@oracle.com>
parents: 15927
diff changeset
984 void addUse(AllocatableValue operand, int from, int to, RegisterPriority registerPriority, LIRKind kind) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
985 if (!isProcessed(operand)) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
986 return;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
987 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
988
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
989 Interval interval = getOrCreateInterval(operand);
16118
5cbaad0b7387 Verify usage of equals method in LIRKind.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
990 if (!kind.equals(LIRKind.Illegal)) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
991 interval.setKind(kind);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
992 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
993
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
994 interval.addRange(from, to);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
995
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
996 // Register use position at even instruction id.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
997 interval.addUsePos(to & ~1, registerPriority);
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
998
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
999 Debug.log("add use: %s, from %d to %d (%s)", interval, from, to, registerPriority.name());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1000 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1001
16094
c0b8d395368b Introduce LIRKind to accurately track oop references in backend.
Roland Schatz <roland.schatz@oracle.com>
parents: 15927
diff changeset
1002 void addTemp(AllocatableValue operand, int tempPos, RegisterPriority registerPriority, LIRKind kind) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1003 if (!isProcessed(operand)) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1004 return;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1005 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1006
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1007 Interval interval = getOrCreateInterval(operand);
16118
5cbaad0b7387 Verify usage of equals method in LIRKind.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
1008 if (!kind.equals(LIRKind.Illegal)) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1009 interval.setKind(kind);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1010 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1011
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1012 interval.addRange(tempPos, tempPos + 1);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1013 interval.addUsePos(tempPos, registerPriority);
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1014 interval.addMaterializationValue(null);
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1015
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1016 Debug.log("add temp: %s tempPos %d (%s)", interval, tempPos, RegisterPriority.MustHaveRegister.name());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1017 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1018
5539
bc647d8b0080 Renaming RiValue => Value.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5536
diff changeset
1019 boolean isProcessed(Value operand) {
5552
69a8969dbf40 Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5547
diff changeset
1020 return !isRegister(operand) || attributes(asRegister(operand)).isAllocatable();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1021 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1022
16094
c0b8d395368b Introduce LIRKind to accurately track oop references in backend.
Roland Schatz <roland.schatz@oracle.com>
parents: 15927
diff changeset
1023 void addDef(AllocatableValue operand, LIRInstruction op, RegisterPriority registerPriority, LIRKind kind) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1024 if (!isProcessed(operand)) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1025 return;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1026 }
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1027 int defPos = op.id();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1028
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1029 Interval interval = getOrCreateInterval(operand);
16118
5cbaad0b7387 Verify usage of equals method in LIRKind.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
1030 if (!kind.equals(LIRKind.Illegal)) {
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1031 interval.setKind(kind);
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1032 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1033
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1034 Range r = interval.first();
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1035 if (r.from <= defPos) {
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1036 // Update the starting point (when a range is first created for a use, its
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1037 // start is the beginning of the current block until a def is encountered.)
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1038 r.from = defPos;
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1039 interval.addUsePos(defPos, registerPriority);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1040
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1041 } else {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1042 // Dead value - make vacuous interval
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1043 // also add register priority for dead intervals
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1044 interval.addRange(defPos, defPos + 1);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1045 interval.addUsePos(defPos, registerPriority);
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1046 Debug.log("Warning: def of operand %s at %d occurs without use", operand, defPos);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1047 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1048
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1049 changeSpillDefinitionPos(interval, defPos);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1050 if (registerPriority == RegisterPriority.None && interval.spillState().ordinal() <= SpillState.StartInMemory.ordinal()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1051 // detection of method-parameters and roundfp-results
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1052 interval.setSpillState(SpillState.StartInMemory);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1053 }
14070
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
1054 interval.addMaterializationValue(LinearScan.getMaterializedValue(op, operand, interval));
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1055
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1056 Debug.log("add def: %s defPos %d (%s)", interval, defPos, registerPriority.name());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1057 }
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 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1060 * Determines the register priority for an instruction's output/result operand.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1061 */
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
1062 static RegisterPriority registerPriorityOfOutputOperand(LIRInstruction op) {
4323
df5547057954 Remove LIROpcode and use non-anonymous subclasses of LIRInstruction
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4265
diff changeset
1063 if (op instanceof MoveOp) {
df5547057954 Remove LIROpcode and use non-anonymous subclasses of LIRInstruction
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4265
diff changeset
1064 MoveOp move = (MoveOp) op;
8353
98b90a7bb764 Only stack slots in caller frame are method arguments. Also optimize object arguments when the runtime supports it.
Christian Wimmer <christian.wimmer@oracle.com>
parents: 8222
diff changeset
1065 if (optimizeMethodArgument(move.getInput())) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1066 return RegisterPriority.None;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1067 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1068 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1069
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1070 // all other operands require a register
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1071 return RegisterPriority.MustHaveRegister;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1072 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1073
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1074 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
1075 * Determines the priority which with an instruction's input operand will be allocated a
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
1076 * register.
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1077 */
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
1078 static RegisterPriority registerPriorityOfInputOperand(EnumSet<OperandFlag> flags) {
5733
141b15521a39 use annotated fields for operands of LIR instructions
Christian Wimmer <christian.wimmer@oracle.com>
parents: 5711
diff changeset
1079 if (flags.contains(OperandFlag.STACK)) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1080 return RegisterPriority.ShouldHaveRegister;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1081 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1082 // all other operands require a register
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1083 return RegisterPriority.MustHaveRegister;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1084 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1085
8353
98b90a7bb764 Only stack slots in caller frame are method arguments. Also optimize object arguments when the runtime supports it.
Christian Wimmer <christian.wimmer@oracle.com>
parents: 8222
diff changeset
1086 private static boolean optimizeMethodArgument(Value value) {
8402
c0db24536e97 Remove flag and optimization for object method arguments in the register allocator. Needs more investigation of GC impact on HotSpot
Christian Wimmer <christian.wimmer@oracle.com>
parents: 8353
diff changeset
1087 /*
c0db24536e97 Remove flag and optimization for object method arguments in the register allocator. Needs more investigation of GC impact on HotSpot
Christian Wimmer <christian.wimmer@oracle.com>
parents: 8353
diff changeset
1088 * Object method arguments that are passed on the stack are currently not optimized because
c0db24536e97 Remove flag and optimization for object method arguments in the register allocator. Needs more investigation of GC impact on HotSpot
Christian Wimmer <christian.wimmer@oracle.com>
parents: 8353
diff changeset
1089 * this requires that the runtime visits method arguments during stack walking.
c0db24536e97 Remove flag and optimization for object method arguments in the register allocator. Needs more investigation of GC impact on HotSpot
Christian Wimmer <christian.wimmer@oracle.com>
parents: 8353
diff changeset
1090 */
c0db24536e97 Remove flag and optimization for object method arguments in the register allocator. Needs more investigation of GC impact on HotSpot
Christian Wimmer <christian.wimmer@oracle.com>
parents: 8353
diff changeset
1091 return isStackSlot(value) && asStackSlot(value).isInCallerFrame() && value.getKind() != Kind.Object;
8353
98b90a7bb764 Only stack slots in caller frame are method arguments. Also optimize object arguments when the runtime supports it.
Christian Wimmer <christian.wimmer@oracle.com>
parents: 8222
diff changeset
1092 }
98b90a7bb764 Only stack slots in caller frame are method arguments. Also optimize object arguments when the runtime supports it.
Christian Wimmer <christian.wimmer@oracle.com>
parents: 8222
diff changeset
1093
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1094 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
1095 * Optimizes moves related to incoming stack based arguments. The interval for the destination
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
1096 * of such moves is assigned the stack slot (which is in the caller's frame) as its spill slot.
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1097 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1098 void handleMethodArguments(LIRInstruction op) {
4323
df5547057954 Remove LIROpcode and use non-anonymous subclasses of LIRInstruction
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4265
diff changeset
1099 if (op instanceof MoveOp) {
df5547057954 Remove LIROpcode and use non-anonymous subclasses of LIRInstruction
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4265
diff changeset
1100 MoveOp move = (MoveOp) op;
8353
98b90a7bb764 Only stack slots in caller frame are method arguments. Also optimize object arguments when the runtime supports it.
Christian Wimmer <christian.wimmer@oracle.com>
parents: 8222
diff changeset
1101 if (optimizeMethodArgument(move.getInput())) {
98b90a7bb764 Only stack slots in caller frame are method arguments. Also optimize object arguments when the runtime supports it.
Christian Wimmer <christian.wimmer@oracle.com>
parents: 8222
diff changeset
1102 StackSlot slot = asStackSlot(move.getInput());
9855
6898d8995866 converted more options from GraalOptions to new system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents: 9632
diff changeset
1103 if (DetailedAsserts.getValue()) {
4323
df5547057954 Remove LIROpcode and use non-anonymous subclasses of LIRInstruction
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4265
diff changeset
1104 assert op.id() > 0 : "invalid id";
7497
0f8c6dbf68be Code clean up and documentation for ComputeBlockOrder class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6582
diff changeset
1105 assert blockForId(op.id()).getPredecessorCount() == 0 : "move from stack must be in first block";
4323
df5547057954 Remove LIROpcode and use non-anonymous subclasses of LIRInstruction
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4265
diff changeset
1106 assert isVariable(move.getResult()) : "result of move must be a variable";
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1107
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1108 Debug.log("found move from stack slot %s to %s", slot, move.getResult());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1109 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1110
4323
df5547057954 Remove LIROpcode and use non-anonymous subclasses of LIRInstruction
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4265
diff changeset
1111 Interval interval = intervalFor(move.getResult());
4213
e4cfa571d8c4 Do not emit stack-to-stack moves.
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4207
diff changeset
1112 interval.setSpillSlot(slot);
e4cfa571d8c4 Do not emit stack-to-stack moves.
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4207
diff changeset
1113 interval.assignLocation(slot);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1114 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1115 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1116 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1117
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1118 void addRegisterHint(final LIRInstruction op, final Value targetValue, OperandMode mode, EnumSet<OperandFlag> flags, final boolean hintAtDef) {
5733
141b15521a39 use annotated fields for operands of LIR instructions
Christian Wimmer <christian.wimmer@oracle.com>
parents: 5711
diff changeset
1119 if (flags.contains(OperandFlag.HINT) && isVariableOrRegister(targetValue)) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1120
4262
744dade427b8 another batch of work towards GraalCompilation removal:
Lukas Stadler <lukas.stadler@jku.at>
parents: 4260
diff changeset
1121 op.forEachRegisterHint(targetValue, mode, new ValueProcedure() {
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
1122
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
1123 @Override
5539
bc647d8b0080 Renaming RiValue => Value.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5536
diff changeset
1124 protected Value doValue(Value registerHint) {
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
1125 if (isVariableOrRegister(registerHint)) {
9297
a5f2b9012865 Interval locations can only be AllocatableValues.
Roland Schatz <roland.schatz@oracle.com>
parents: 8402
diff changeset
1126 Interval from = getOrCreateInterval((AllocatableValue) registerHint);
a5f2b9012865 Interval locations can only be AllocatableValues.
Roland Schatz <roland.schatz@oracle.com>
parents: 8402
diff changeset
1127 Interval to = getOrCreateInterval((AllocatableValue) targetValue);
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1128
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1129 // hints always point from def to use
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1130 if (hintAtDef) {
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
1131 to.setLocationHint(from);
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1132 } else {
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1133 from.setLocationHint(to);
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
1134 }
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1135 Debug.log("operation at opId %d: added hint from interval %d to %d", op.id(), from.operandNumber, to.operandNumber);
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1136
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1137 return registerHint;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1138 }
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
1139 return null;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1140 }
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
1141 });
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1142 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1143 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1144
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1145 void buildIntervals() {
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1146
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1147 try (Indent indent = Debug.logAndIndent("build intervals")) {
16138
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1148 InstructionValueProcedure outputProc = new InstructionValueProcedure() {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1149
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1150 @Override
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1151 public Value doValue(LIRInstruction op, Value operand, OperandMode mode, EnumSet<OperandFlag> flags) {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1152 if (isVariableOrRegister(operand)) {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1153 addDef((AllocatableValue) operand, op, registerPriorityOfOutputOperand(op), operand.getLIRKind());
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1154 addRegisterHint(op, operand, mode, flags, true);
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1155 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1156 return operand;
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1157 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1158 };
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1159
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1160 InstructionValueProcedure tempProc = new InstructionValueProcedure() {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1161
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1162 @Override
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1163 public Value doValue(LIRInstruction op, Value operand, OperandMode mode, EnumSet<OperandFlag> flags) {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1164 if (isVariableOrRegister(operand)) {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1165 addTemp((AllocatableValue) operand, op.id(), RegisterPriority.MustHaveRegister, operand.getLIRKind());
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1166 addRegisterHint(op, operand, mode, flags, false);
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1167 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1168 return operand;
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1169 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1170 };
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1171
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1172 InstructionValueProcedure aliveProc = new InstructionValueProcedure() {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1173
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1174 @Override
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1175 public Value doValue(LIRInstruction op, Value operand, OperandMode mode, EnumSet<OperandFlag> flags) {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1176 if (isVariableOrRegister(operand)) {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1177 RegisterPriority p = registerPriorityOfInputOperand(flags);
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1178 final int opId = op.id();
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1179 final int blockFrom = getFirstLirInstructionId((blockForId(opId)));
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1180 addUse((AllocatableValue) operand, blockFrom, opId + 1, p, operand.getLIRKind());
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1181 addRegisterHint(op, operand, mode, flags, false);
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1182 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1183 return operand;
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1184 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1185 };
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1186
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1187 InstructionValueProcedure inputProc = new InstructionValueProcedure() {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1188
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1189 @Override
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1190 public Value doValue(LIRInstruction op, Value operand, OperandMode mode, EnumSet<OperandFlag> flags) {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1191 if (isVariableOrRegister(operand)) {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1192 final int opId = op.id();
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1193 final int blockFrom = getFirstLirInstructionId((blockForId(opId)));
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1194 RegisterPriority p = registerPriorityOfInputOperand(flags);
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1195 addUse((AllocatableValue) operand, blockFrom, opId, p, operand.getLIRKind());
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1196 addRegisterHint(op, operand, mode, flags, false);
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1197 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1198 return operand;
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1199 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1200 };
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1201
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1202 InstructionValueProcedure stateProc = new InstructionValueProcedure() {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1203
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1204 @Override
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1205 public Value doValue(LIRInstruction op, Value operand) {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1206 final int opId = op.id();
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1207 final int blockFrom = getFirstLirInstructionId((blockForId(opId)));
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1208 addUse((AllocatableValue) operand, blockFrom, opId + 1, RegisterPriority.None, operand.getLIRKind());
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1209 return operand;
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1210 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1211 };
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1212
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1213 // create a list with all caller-save registers (cpu, fpu, xmm)
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1214 Register[] callerSaveRegs = frameMap.registerConfig.getCallerSaveRegisters();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1215
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1216 // iterate all blocks in reverse order
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1217 for (int i = blockCount() - 1; i >= 0; i--) {
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1218
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1219 AbstractBlock<?> block = blockAt(i);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1220 try (Indent indent2 = Debug.logAndIndent("handle block %d", block.getId())) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1221
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1222 List<LIRInstruction> instructions = ir.getLIRforBlock(block);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1223 final int blockFrom = getFirstLirInstructionId(block);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1224 int blockTo = getLastLirInstructionId(block);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1225
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1226 assert blockFrom == instructions.get(0).id();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1227 assert blockTo == instructions.get(instructions.size() - 1).id();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1228
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1229 // Update intervals for operands live at the end of this block;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1230 BitSet live = blockData.get(block).liveOut;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1231 for (int operandNum = live.nextSetBit(0); operandNum >= 0; operandNum = live.nextSetBit(operandNum + 1)) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1232 assert live.get(operandNum) : "should not stop here otherwise";
15884
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
1233 AllocatableValue operand = intervalFor(operandNum).operand;
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1234 Debug.log("live in %d: %s", operandNum, operand);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1235
16094
c0b8d395368b Introduce LIRKind to accurately track oop references in backend.
Roland Schatz <roland.schatz@oracle.com>
parents: 15927
diff changeset
1236 addUse(operand, blockFrom, blockTo + 2, RegisterPriority.None, LIRKind.Illegal);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1237
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1238 // add special use positions for loop-end blocks when the
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1239 // interval is used anywhere inside this loop. It's possible
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1240 // that the block was part of a non-natural loop, so it might
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1241 // have an invalid loop index.
15534
4bd6ad45ee0a Encapsulate members of Loop.
Josef Eisl <josef.eisl@jku.at>
parents: 15193
diff changeset
1242 if (block.isLoopEnd() && block.getLoop() != null && isIntervalInLoop(operandNum, block.getLoop().getIndex())) {
15887
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
1243 intervalFor(operandNum).addUsePos(blockTo + 1, RegisterPriority.LiveAtLoopEnd);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1244 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1245 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1246
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1247 // iterate all instructions of the block in reverse order.
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1248 // definitions of intervals are processed before uses
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1249 for (int j = instructions.size() - 1; j >= 0; j--) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1250 final LIRInstruction op = instructions.get(j);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1251 final int opId = op.id();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1252
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1253 try (Indent indent3 = Debug.logAndIndent("handle inst %d: %s", opId, op)) {
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
1254
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1255 // add a temp range for each register if operation destroys
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1256 // caller-save registers
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1257 if (op.destroysCallerSavedRegisters()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1258 for (Register r : callerSaveRegs) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1259 if (attributes(r).isAllocatable()) {
16094
c0b8d395368b Introduce LIRKind to accurately track oop references in backend.
Roland Schatz <roland.schatz@oracle.com>
parents: 15927
diff changeset
1260 addTemp(r.asValue(), opId, RegisterPriority.None, LIRKind.Illegal);
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1261 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1262 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1263 Debug.log("operation destroys all caller-save registers");
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1264 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1265
16138
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1266 op.forEachOutput(outputProc);
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1267 op.forEachTemp(tempProc);
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1268 op.forEachAlive(aliveProc);
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1269 op.forEachInput(inputProc);
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
1270
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1271 // Add uses of live locals from interpreter's point of view for proper
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1272 // debug information generation
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1273 // Treat these operands as temp values (if the live range is extended
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1274 // to a call site, the value would be in a register at
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1275 // the call otherwise)
16138
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1276 op.forEachState(stateProc);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1277
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1278 // special steps for some instructions (especially moves)
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1279 handleMethodArguments(op);
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1280
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1281 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1282
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1283 } // end of instruction iteration
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1284 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1285 } // end of block iteration
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1286
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1287 // add the range [0, 1] to all fixed intervals.
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1288 // the register allocator need not handle unhandled fixed intervals
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1289 for (Interval interval : intervals) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1290 if (interval != null && isRegister(interval.operand)) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1291 interval.addRange(0, 1);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1292 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1293 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1294 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1295 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1296
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1297 // * Phase 5: actual register allocation
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1298
4142
bc8527f3071c Adjust code base to new level of warnings.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3733
diff changeset
1299 private static boolean isSorted(Interval[] intervals) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1300 int from = -1;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1301 for (Interval interval : intervals) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1302 assert interval != null;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1303 assert from <= interval.from();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1304 from = interval.from();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1305 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1306 return true;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1307 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1308
4142
bc8527f3071c Adjust code base to new level of warnings.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3733
diff changeset
1309 static Interval addToList(Interval first, Interval prev, Interval interval) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1310 Interval newFirst = first;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1311 if (prev != null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1312 prev.next = interval;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1313 } else {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1314 newFirst = interval;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1315 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1316 return newFirst;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1317 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1318
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1319 Interval.Pair createUnhandledLists(IntervalPredicate isList1, IntervalPredicate isList2) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1320 assert isSorted(sortedIntervals) : "interval list is not sorted";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1321
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1322 Interval list1 = Interval.EndMarker;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1323 Interval list2 = Interval.EndMarker;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1324
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1325 Interval list1Prev = null;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1326 Interval list2Prev = null;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1327 Interval v;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1328
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1329 int n = sortedIntervals.length;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1330 for (int i = 0; i < n; i++) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1331 v = sortedIntervals[i];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1332 if (v == null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1333 continue;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1334 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1335
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1336 if (isList1.apply(v)) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1337 list1 = addToList(list1, list1Prev, v);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1338 list1Prev = v;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1339 } else if (isList2 == null || isList2.apply(v)) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1340 list2 = addToList(list2, list2Prev, v);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1341 list2Prev = v;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1342 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1343 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1344
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1345 if (list1Prev != null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1346 list1Prev.next = Interval.EndMarker;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1347 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1348 if (list2Prev != null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1349 list2Prev.next = Interval.EndMarker;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1350 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1351
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1352 assert list1Prev == null || list1Prev.next == Interval.EndMarker : "linear list ends not with sentinel";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1353 assert list2Prev == null || list2Prev.next == Interval.EndMarker : "linear list ends not with sentinel";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1354
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1355 return new Interval.Pair(list1, list2);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1356 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1357
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1358 void sortIntervalsBeforeAllocation() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1359 int sortedLen = 0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1360 for (Interval interval : intervals) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1361 if (interval != null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1362 sortedLen++;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1363 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1364 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1365
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1366 Interval[] sortedList = new Interval[sortedLen];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1367 int sortedIdx = 0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1368 int sortedFromMax = -1;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1369
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1370 // special sorting algorithm: the original interval-list is almost sorted,
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1371 // only some intervals are swapped. So this is much faster than a complete QuickSort
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1372 for (Interval interval : intervals) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1373 if (interval != null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1374 int from = interval.from();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1375
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1376 if (sortedFromMax <= from) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1377 sortedList[sortedIdx++] = interval;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1378 sortedFromMax = interval.from();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1379 } else {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1380 // the assumption that the intervals are already sorted failed,
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1381 // so this interval must be sorted in manually
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1382 int j;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1383 for (j = sortedIdx - 1; j >= 0 && from < sortedList[j].from(); j--) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1384 sortedList[j + 1] = sortedList[j];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1385 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1386 sortedList[j + 1] = interval;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1387 sortedIdx++;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1388 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1389 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1390 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1391 sortedIntervals = sortedList;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1392 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1393
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1394 void sortIntervalsAfterAllocation() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1395 if (firstDerivedIntervalIndex == -1) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1396 // no intervals have been added during allocation, so sorted list is already up to date
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1397 return;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1398 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1399
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1400 Interval[] oldList = sortedIntervals;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1401 Interval[] newList = Arrays.copyOfRange(intervals, firstDerivedIntervalIndex, intervalsSize);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1402 int oldLen = oldList.length;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1403 int newLen = newList.length;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1404
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1405 // conventional sort-algorithm for new intervals
15886
e5e7d9dfff1a LinearScan: Clean up interval comparator and replace with lambda form.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15885
diff changeset
1406 Arrays.sort(newList, (Interval a, Interval b) -> a.from() - b.from());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1407
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1408 // merge old and new list (both already sorted) into one combined list
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1409 Interval[] combinedList = new Interval[oldLen + newLen];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1410 int oldIdx = 0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1411 int newIdx = 0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1412
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1413 while (oldIdx + newIdx < combinedList.length) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1414 if (newIdx >= newLen || (oldIdx < oldLen && oldList[oldIdx].from() <= newList[newIdx].from())) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1415 combinedList[oldIdx + newIdx] = oldList[oldIdx];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1416 oldIdx++;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1417 } else {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1418 combinedList[oldIdx + newIdx] = newList[newIdx];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1419 newIdx++;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1420 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1421 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1422
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1423 sortedIntervals = combinedList;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1424 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1425
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1426 public void allocateRegisters() {
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1427 try (Indent indent = Debug.logAndIndent("allocate registers")) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1428 Interval precoloredIntervals;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1429 Interval notPrecoloredIntervals;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1430
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1431 Interval.Pair result = createUnhandledLists(IS_PRECOLORED_INTERVAL, IS_VARIABLE_INTERVAL);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1432 precoloredIntervals = result.first;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1433 notPrecoloredIntervals = result.second;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1434
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1435 // allocate cpu registers
15927
96229f219351 LSRA: add OptimizingLinearScanWalker.
Josef Eisl <josef.eisl@jku.at>
parents: 15920
diff changeset
1436 LinearScanWalker lsw;
96229f219351 LSRA: add OptimizingLinearScanWalker.
Josef Eisl <josef.eisl@jku.at>
parents: 15920
diff changeset
1437 if (OptimizingLinearScanWalker.Options.LSRAOptimization.getValue()) {
96229f219351 LSRA: add OptimizingLinearScanWalker.
Josef Eisl <josef.eisl@jku.at>
parents: 15920
diff changeset
1438 lsw = new OptimizingLinearScanWalker(this, precoloredIntervals, notPrecoloredIntervals);
96229f219351 LSRA: add OptimizingLinearScanWalker.
Josef Eisl <josef.eisl@jku.at>
parents: 15920
diff changeset
1439 } else {
96229f219351 LSRA: add OptimizingLinearScanWalker.
Josef Eisl <josef.eisl@jku.at>
parents: 15920
diff changeset
1440 lsw = new LinearScanWalker(this, precoloredIntervals, notPrecoloredIntervals);
96229f219351 LSRA: add OptimizingLinearScanWalker.
Josef Eisl <josef.eisl@jku.at>
parents: 15920
diff changeset
1441 }
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1442 lsw.walk();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1443 lsw.finishAllocation();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1444 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1445 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1446
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1447 // * Phase 6: resolve data flow
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1448 // (insert moves at edges between blocks if intervals have been split)
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1449
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1450 // wrapper for Interval.splitChildAtOpId that performs a bailout in product mode
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1451 // instead of returning null
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1452 Interval splitChildAtOpId(Interval interval, int opId, LIRInstruction.OperandMode mode) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1453 Interval result = interval.getSplitChildAtOpId(opId, mode, this);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1454
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1455 if (result != null) {
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1456 Debug.log("Split child at pos %d of interval %s is %s", opId, interval, result);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1457 return result;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1458 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1459
5547
b6617d13ea44 Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5542
diff changeset
1460 throw new BailoutException("LinearScan: interval is null");
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1461 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1462
15884
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
1463 Interval intervalAtBlockBegin(AbstractBlock<?> block, int operandNumber) {
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
1464 return splitChildAtOpId(intervalFor(operandNumber), getFirstLirInstructionId(block), LIRInstruction.OperandMode.DEF);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1465 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1466
15884
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
1467 Interval intervalAtBlockEnd(AbstractBlock<?> block, int operandNumber) {
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
1468 return splitChildAtOpId(intervalFor(operandNumber), getLastLirInstructionId(block) + 1, LIRInstruction.OperandMode.DEF);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1469 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1470
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
1471 void resolveCollectMappings(AbstractBlock<?> fromBlock, AbstractBlock<?> toBlock, MoveResolver moveResolver) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1472 assert moveResolver.checkEmpty();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1473
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
1474 int numOperands = operandSize();
5541
b4c406861c33 More renamings to drop Ri* prefix completely. Deleted graph.BitMap class and replaced with java.util.BitSet.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5540
diff changeset
1475 BitSet liveAtEdge = blockData.get(toBlock).liveIn;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1476
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1477 // visit all variables for which the liveAtEdge bit is set
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1478 for (int operandNum = liveAtEdge.nextSetBit(0); operandNum >= 0; operandNum = liveAtEdge.nextSetBit(operandNum + 1)) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1479 assert operandNum < numOperands : "live information set for not exisiting interval";
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4394
diff changeset
1480 assert blockData.get(fromBlock).liveOut.get(operandNum) && blockData.get(toBlock).liveIn.get(operandNum) : "interval not live at this edge";
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1481
15884
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
1482 Interval fromInterval = intervalAtBlockEnd(fromBlock, operandNum);
0e6f83eeb0ab Clean up in LinearScan: Remove the need for a mapping of variable index to variable object.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15850
diff changeset
1483 Interval toInterval = intervalAtBlockBegin(toBlock, operandNum);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1484
9632
97db51025787 Value: use `equals()' instead of object equality
Bernhard Urban <bernhard.urban@jku.at>
parents: 9628
diff changeset
1485 if (fromInterval != toInterval && !fromInterval.location().equals(toInterval.location())) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1486 // need to insert move instruction
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1487 moveResolver.addMapping(fromInterval, toInterval);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1488 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1489 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1490 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1491
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
1492 void resolveFindInsertPos(AbstractBlock<?> fromBlock, AbstractBlock<?> toBlock, MoveResolver moveResolver) {
7497
0f8c6dbf68be Code clean up and documentation for ComputeBlockOrder class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6582
diff changeset
1493 if (fromBlock.getSuccessorCount() <= 1) {
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1494 Debug.log("inserting moves at end of fromBlock B%d", fromBlock.getId());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1495
14806
a8723f1ff542 LIR renamed setter and getter functions.
Josef Eisl <josef.eisl@jku.at>
parents: 14789
diff changeset
1496 List<LIRInstruction> instructions = ir.getLIRforBlock(fromBlock);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1497 LIRInstruction instr = instructions.get(instructions.size() - 1);
4323
df5547057954 Remove LIROpcode and use non-anonymous subclasses of LIRInstruction
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4265
diff changeset
1498 if (instr instanceof StandardOp.JumpOp) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1499 // insert moves before branch
6411
c5afcc2ebd3d change of project structure: separate compiler and LIR, put EA into separate project
Lukas Stadler <lukas.stadler@jku.at>
parents: 6352
diff changeset
1500 moveResolver.setInsertPosition(instructions, instructions.size() - 1);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1501 } else {
6411
c5afcc2ebd3d change of project structure: separate compiler and LIR, put EA into separate project
Lukas Stadler <lukas.stadler@jku.at>
parents: 6352
diff changeset
1502 moveResolver.setInsertPosition(instructions, instructions.size());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1503 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1504
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1505 } else {
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1506 Debug.log("inserting moves at beginning of toBlock B%d", toBlock.getId());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1507
9855
6898d8995866 converted more options from GraalOptions to new system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents: 9632
diff changeset
1508 if (DetailedAsserts.getValue()) {
14806
a8723f1ff542 LIR renamed setter and getter functions.
Josef Eisl <josef.eisl@jku.at>
parents: 14789
diff changeset
1509 assert ir.getLIRforBlock(fromBlock).get(0) instanceof StandardOp.LabelOp : "block does not start with a label";
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1510
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1511 // because the number of predecessor edges matches the number of
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1512 // successor edges, blocks which are reached by switch statements
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1513 // may have be more than one predecessor but it will be guaranteed
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1514 // that all predecessors will be the same.
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
1515 for (AbstractBlock<?> predecessor : toBlock.getPredecessors()) {
7497
0f8c6dbf68be Code clean up and documentation for ComputeBlockOrder class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6582
diff changeset
1516 assert fromBlock == predecessor : "all critical edges must be broken";
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1517 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1518 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1519
14806
a8723f1ff542 LIR renamed setter and getter functions.
Josef Eisl <josef.eisl@jku.at>
parents: 14789
diff changeset
1520 moveResolver.setInsertPosition(ir.getLIRforBlock(toBlock), 1);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1521 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1522 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1523
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1524 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1525 * Inserts necessary moves (spilling or reloading) at edges between blocks for intervals that
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1526 * have been split.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1527 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1528 void resolveDataFlow() {
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1529 try (Indent indent = Debug.logAndIndent("resolve data flow")) {
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1530
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1531 int numBlocks = blockCount();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1532 MoveResolver moveResolver = new MoveResolver(this);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1533 BitSet blockCompleted = new BitSet(numBlocks);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1534 BitSet alreadyResolved = new BitSet(numBlocks);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1535
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1536 for (AbstractBlock<?> block : sortedBlocks) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1537
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1538 // check if block has only one predecessor and only one successor
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1539 if (block.getPredecessorCount() == 1 && block.getSuccessorCount() == 1) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1540 List<LIRInstruction> instructions = ir.getLIRforBlock(block);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1541 assert instructions.get(0) instanceof StandardOp.LabelOp : "block must start with label";
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1542 assert instructions.get(instructions.size() - 1) instanceof StandardOp.JumpOp : "block with successor must end with unconditional jump";
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1543
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1544 // check if block is empty (only label and branch)
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1545 if (instructions.size() == 2) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1546 AbstractBlock<?> pred = block.getPredecessors().iterator().next();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1547 AbstractBlock<?> sux = block.getSuccessors().iterator().next();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1548
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1549 // prevent optimization of two consecutive blocks
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1550 if (!blockCompleted.get(pred.getLinearScanNumber()) && !blockCompleted.get(sux.getLinearScanNumber())) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1551 Debug.log(" optimizing empty block B%d (pred: B%d, sux: B%d)", block.getId(), pred.getId(), sux.getId());
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1552
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1553 blockCompleted.set(block.getLinearScanNumber());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1554
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1555 // directly resolve between pred and sux (without looking
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1556 // at the empty block
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1557 // between)
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1558 resolveCollectMappings(pred, sux, moveResolver);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1559 if (moveResolver.hasMappings()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1560 moveResolver.setInsertPosition(instructions, 1);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1561 moveResolver.resolveAndAppendMoves();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1562 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1563 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1564 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1565 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1566 }
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1567
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1568 for (AbstractBlock<?> fromBlock : sortedBlocks) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1569 if (!blockCompleted.get(fromBlock.getLinearScanNumber())) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1570 alreadyResolved.clear();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1571 alreadyResolved.or(blockCompleted);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1572
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1573 for (AbstractBlock<?> toBlock : fromBlock.getSuccessors()) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1574
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1575 // check for duplicate edges between the same blocks (can happen with switch
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1576 // blocks)
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1577 if (!alreadyResolved.get(toBlock.getLinearScanNumber())) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1578 Debug.log("processing edge between B%d and B%d", fromBlock.getId(), toBlock.getId());
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1579
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1580 alreadyResolved.set(toBlock.getLinearScanNumber());
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1581
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1582 // collect all intervals that have been split between
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1583 // fromBlock and toBlock
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1584 resolveCollectMappings(fromBlock, toBlock, moveResolver);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1585 if (moveResolver.hasMappings()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1586 resolveFindInsertPos(fromBlock, toBlock, moveResolver);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1587 moveResolver.resolveAndAppendMoves();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1588 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1589 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1590 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1591 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1592 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1593 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1594 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1595
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1596 // * Phase 7: assign register numbers back to LIR
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1597 // (includes computation of debug information and oop maps)
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1598
5547
b6617d13ea44 Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5542
diff changeset
1599 static StackSlot canonicalSpillOpr(Interval interval) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1600 assert interval.spillSlot() != null : "canonical spill slot not set";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1601 return interval.spillSlot();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1602 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1603
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1604 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1605 * Assigns the allocated location for an LIR instruction operand back into the instruction.
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1606 *
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1607 * @param operand an LIR instruction operand
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1608 * @param opId the id of the LIR instruction using {@code operand}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1609 * @param mode the usage mode for {@code operand} by the instruction
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1610 * @return the location assigned for the operand
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1611 */
5539
bc647d8b0080 Renaming RiValue => Value.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5536
diff changeset
1612 private Value colorLirOperand(Variable operand, int opId, OperandMode mode) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1613 Interval interval = intervalFor(operand);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1614 assert interval != null : "interval must exist";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1615
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1616 if (opId != -1) {
9855
6898d8995866 converted more options from GraalOptions to new system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents: 9632
diff changeset
1617 if (DetailedAsserts.getValue()) {
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
1618 AbstractBlock<?> block = blockForId(opId);
7497
0f8c6dbf68be Code clean up and documentation for ComputeBlockOrder class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6582
diff changeset
1619 if (block.getSuccessorCount() <= 1 && opId == getLastLirInstructionId(block)) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1620 // check if spill moves could have been appended at the end of this block, but
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
1621 // before the branch instruction. So the split child information for this branch
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
1622 // would
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1623 // be incorrect.
14806
a8723f1ff542 LIR renamed setter and getter functions.
Josef Eisl <josef.eisl@jku.at>
parents: 14789
diff changeset
1624 LIRInstruction instr = ir.getLIRforBlock(block).get(ir.getLIRforBlock(block).size() - 1);
4323
df5547057954 Remove LIROpcode and use non-anonymous subclasses of LIRInstruction
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4265
diff changeset
1625 if (instr instanceof StandardOp.JumpOp) {
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4394
diff changeset
1626 if (blockData.get(block).liveOut.get(operandNumber(operand))) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1627 assert false : "can't get split child for the last branch of a block because the information would be incorrect (moves are inserted before the branch in resolveDataFlow)";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1628 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1629 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1630 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1631 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1632
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1633 // operands are not changed when an interval is split during allocation,
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1634 // so search the right interval here
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1635 interval = splitChildAtOpId(interval, opId, mode);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1636 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1637
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1638 if (isIllegal(interval.location()) && interval.canMaterialize()) {
13377
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1639 assert mode != OperandMode.DEF;
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1640 return interval.getMaterializedValue();
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1641 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1642 return interval.location();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1643 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1644
13377
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1645 private boolean isMaterialized(AllocatableValue operand, int opId, OperandMode mode) {
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1646 Interval interval = intervalFor(operand);
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1647 assert interval != null : "interval must exist";
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1648
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1649 if (opId != -1) {
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1650 // operands are not changed when an interval is split during allocation,
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1651 // so search the right interval here
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1652 interval = splitChildAtOpId(interval, opId, mode);
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1653 }
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1654
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1655 return isIllegal(interval.location()) && interval.canMaterialize();
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1656 }
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1657
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1658 protected IntervalWalker initIntervalWalker(IntervalPredicate predicate) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1659 // setup lists of potential oops for walking
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1660 Interval oopIntervals;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1661 Interval nonOopIntervals;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1662
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1663 oopIntervals = createUnhandledLists(predicate, null).first;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1664
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1665 // intervals that have no oops inside need not to be processed.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1666 // to ensure a walking until the last instruction id, add a dummy interval
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1667 // with a high operation id
6539
2463eb24b644 Cleanup of Graal API: Rename methods so that it follows the getXxx naming convention and so that they are similar to the names of the java.lang.reflect classes. Remove unused methods.
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6529
diff changeset
1668 nonOopIntervals = new Interval(Value.ILLEGAL, -1);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1669 nonOopIntervals.addRange(Integer.MAX_VALUE - 2, Integer.MAX_VALUE - 1);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1670
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1671 return new IntervalWalker(this, oopIntervals, nonOopIntervals);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1672 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1673
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1674 /**
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1675 * Visits all intervals for a frame state. The frame state use this information to build the OOP
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1676 * maps.
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1677 */
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1678 void markFrameLocations(IntervalWalker iw, LIRInstruction op, LIRFrameState info) {
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1679 Debug.log("creating oop map at opId %d", op.id());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1680
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1681 // walk before the current operation . intervals that start at
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1682 // the operation (i.e. output operands of the operation) are not
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1683 // included in the oop map
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1684 iw.walkBefore(op.id());
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1685
16368
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1686 // TODO(je) we could pass this as parameter
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1687 AbstractBlock<?> block = blockForId(op.id());
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1688
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1689 // Iterate through active intervals
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1690 for (Interval interval = iw.activeLists.get(RegisterBinding.Fixed); interval != Interval.EndMarker; interval = interval.next) {
5539
bc647d8b0080 Renaming RiValue => Value.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5536
diff changeset
1691 Value operand = interval.operand;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1692
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1693 assert interval.currentFrom() <= op.id() && op.id() <= interval.currentTo() : "interval should not be active otherwise";
4183
9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class.
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4181
diff changeset
1694 assert isVariable(interval.operand) : "fixed interval found";
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1695
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1696 // Check if this range covers the instruction. Intervals that
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1697 // start or end at the current operation are not included in the
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1698 // oop map, except in the case of patching moves. For patching
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1699 // moves, any intervals which end at this instruction are included
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1700 // in the oop map since we may safepoint while doing the patch
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1701 // before we've consumed the inputs.
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1702 if (op.id() < interval.currentTo() && !isIllegal(interval.location())) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1703 // caller-save registers must not be included into oop-maps at calls
9454
85a836bcd796 renaming for improved clarity: hasCall -> destroysCallerSavedRegisters
Doug Simon <doug.simon@oracle.com>
parents: 9425
diff changeset
1704 assert !op.destroysCallerSavedRegisters() || !isRegister(operand) || !isCallerSave(operand) : "interval is in a caller-save register at a call . register will be overwritten";
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1705
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1706 info.markLocation(interval.location(), frameMap);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1707
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1708 // Spill optimization: when the stack value is guaranteed to be always correct,
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
1709 // then it must be added to the oop map even if the interval is currently in a
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
1710 // register
16368
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1711 int spillPos = interval.spillDefinitionPos();
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1712 if (interval.spillState() != SpillState.SpillInDominator) {
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1713 if (interval.alwaysInMemory() && op.id() > interval.spillDefinitionPos() && !interval.location().equals(interval.spillSlot())) {
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1714 assert interval.spillDefinitionPos() > 0 : "position not set correctly";
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1715 assert spillPos > 0 : "position not set correctly";
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1716 assert interval.spillSlot() != null : "no spill slot assigned";
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1717 assert !isRegister(interval.operand) : "interval is on stack : so stack slot is registered twice";
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1718 info.markLocation(interval.spillSlot(), frameMap);
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1719 }
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1720 } else {
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1721 AbstractBlock<?> spillBlock = blockForId(spillPos);
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1722 if (interval.alwaysInMemory() && !interval.location().equals(interval.spillSlot())) {
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1723 if ((spillBlock.equals(block) && op.id() > spillPos) || AbstractBlock.dominates(spillBlock, block)) {
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1724 assert spillPos > 0 : "position not set correctly";
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1725 assert interval.spillSlot() != null : "no spill slot assigned";
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1726 assert !isRegister(interval.operand) : "interval is on stack : so stack slot is registered twice";
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1727 info.markLocation(interval.spillSlot(), frameMap);
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1728 }
ef641ba1fb69 LSRA spill optimization: mark the correct frame locations.
Josef Eisl <josef.eisl@jku.at>
parents: 16367
diff changeset
1729 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1730 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1731 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1732 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1733 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1734
5539
bc647d8b0080 Renaming RiValue => Value.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5536
diff changeset
1735 private boolean isCallerSave(Value operand) {
5552
69a8969dbf40 Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5547
diff changeset
1736 return attributes(asRegister(operand)).isCallerSave();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1737 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1738
16138
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1739 private InstructionValueProcedure debugInfoProc = new InstructionValueProcedure() {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1740
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1741 @Override
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1742 public Value doValue(LIRInstruction op, Value operand) {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1743 int tempOpId = op.id();
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1744 OperandMode mode = OperandMode.USE;
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1745 AbstractBlock<?> block = blockForId(tempOpId);
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1746 if (block.getSuccessorCount() == 1 && tempOpId == getLastLirInstructionId(block)) {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1747 // generating debug information for the last instruction of a block.
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1748 // if this instruction is a branch, spill moves are inserted before this branch
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1749 // and so the wrong operand would be returned (spill moves at block boundaries
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1750 // are not
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1751 // considered in the live ranges of intervals)
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1752 // Solution: use the first opId of the branch target block instead.
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1753 final LIRInstruction instr = ir.getLIRforBlock(block).get(ir.getLIRforBlock(block).size() - 1);
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1754 if (instr instanceof StandardOp.JumpOp) {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1755 if (blockData.get(block).liveOut.get(operandNumber(operand))) {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1756 tempOpId = getFirstLirInstructionId(block.getSuccessors().iterator().next());
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1757 mode = OperandMode.DEF;
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1758 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1759 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1760 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1761
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1762 // Get current location of operand
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1763 // The operand must be live because debug information is considered when building
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1764 // the intervals
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1765 // if the interval is not live, colorLirOperand will cause an assert on failure
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1766 Value result = colorLirOperand((Variable) operand, tempOpId, mode);
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1767 assert !hasCall(tempOpId) || isStackSlot(result) || isConstant(result) || !isCallerSave(result) : "cannot have caller-save register operands at calls";
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1768 return result;
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1769 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1770 };
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1771
5733
141b15521a39 use annotated fields for operands of LIR instructions
Christian Wimmer <christian.wimmer@oracle.com>
parents: 5711
diff changeset
1772 private void computeDebugInfo(IntervalWalker iw, final LIRInstruction op, LIRFrameState info) {
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1773 info.initDebugInfo(frameMap, !op.destroysCallerSavedRegisters() || !callKillsRegisters);
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1774 markFrameLocations(iw, op, info);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1775
16138
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1776 info.forEachState(op, debugInfoProc);
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1777 info.finish(op, frameMap);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1778 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1779
5733
141b15521a39 use annotated fields for operands of LIR instructions
Christian Wimmer <christian.wimmer@oracle.com>
parents: 5711
diff changeset
1780 private void assignLocations(List<LIRInstruction> instructions, final IntervalWalker iw) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1781 int numInst = instructions.size();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1782 boolean hasDead = false;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1783
16138
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1784 InstructionValueProcedure assignProc = new InstructionValueProcedure() {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1785
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1786 @Override
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1787 public Value doValue(LIRInstruction op, Value operand, OperandMode mode, EnumSet<OperandFlag> flags) {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1788 if (isVariable(operand)) {
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1789 return colorLirOperand((Variable) operand, op.id(), mode);
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1790 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1791 return operand;
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1792 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1793 };
16355
eeb911056079 LinearScan: use InstructionStateProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16138
diff changeset
1794 InstructionStateProcedure stateProc = new InstructionStateProcedure() {
eeb911056079 LinearScan: use InstructionStateProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16138
diff changeset
1795
eeb911056079 LinearScan: use InstructionStateProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16138
diff changeset
1796 @Override
eeb911056079 LinearScan: use InstructionStateProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16138
diff changeset
1797 protected void doState(LIRInstruction op, LIRFrameState state) {
eeb911056079 LinearScan: use InstructionStateProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16138
diff changeset
1798 computeDebugInfo(iw, op, state);
eeb911056079 LinearScan: use InstructionStateProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16138
diff changeset
1799 }
eeb911056079 LinearScan: use InstructionStateProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16138
diff changeset
1800 };
16138
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1801
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1802 for (int j = 0; j < numInst; j++) {
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
1803 final LIRInstruction op = instructions.get(j);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1804 if (op == null) { // this can happen when spill-moves are removed in eliminateSpillMoves
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1805 hasDead = true;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1806 continue;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1807 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1808
13377
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1809 // remove useless moves
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1810 MoveOp move = null;
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1811 if (op instanceof MoveOp) {
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1812 move = (MoveOp) op;
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1813 AllocatableValue result = move.getResult();
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1814 if (isVariable(result) && isMaterialized(result, op.id(), OperandMode.DEF)) {
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1815 /*
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1816 * This happens if a materializable interval is originally not spilled but then
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1817 * kicked out in LinearScanWalker.splitForSpilling(). When kicking out such an
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1818 * interval this move operation was already generated.
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1819 */
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1820 instructions.set(j, null);
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1821 hasDead = true;
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1822 continue;
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1823 }
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1824 }
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1825
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
1826 op.forEachInput(assignProc);
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
1827 op.forEachAlive(assignProc);
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
1828 op.forEachTemp(assignProc);
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
1829 op.forEachOutput(assignProc);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1830
5733
141b15521a39 use annotated fields for operands of LIR instructions
Christian Wimmer <christian.wimmer@oracle.com>
parents: 5711
diff changeset
1831 // compute reference map and debug information
16355
eeb911056079 LinearScan: use InstructionStateProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16138
diff changeset
1832 op.forEachState(stateProc);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1833
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1834 // remove useless moves
13377
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1835 if (move != null) {
9628
8851fabf2265 LinearScan: Can no longer check for object equality after removal of RegisterValue cache.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 9614
diff changeset
1836 if (move.getInput().equals(move.getResult())) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1837 instructions.set(j, null);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1838 hasDead = true;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1839 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1840 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1841 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1842
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1843 if (hasDead) {
6321
9418ff4c9e7c Clean up ControlFlowOptimizer.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6317
diff changeset
1844 // Remove null values from the list.
9418ff4c9e7c Clean up ControlFlowOptimizer.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6317
diff changeset
1845 instructions.removeAll(Collections.singleton(null));
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1846 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1847 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1848
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1849 private void assignLocations() {
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1850 IntervalWalker iw = initIntervalWalker(IS_STACK_INTERVAL);
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1851 try (Indent indent = Debug.logAndIndent("assign locations")) {
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
1852 for (AbstractBlock<?> block : sortedBlocks) {
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1853 try (Indent indent2 = Debug.logAndIndent("assign locations in block B%d", block.getId())) {
14806
a8723f1ff542 LIR renamed setter and getter functions.
Josef Eisl <josef.eisl@jku.at>
parents: 14789
diff changeset
1854 assignLocations(ir.getLIRforBlock(block), iw);
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1855 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1856 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1857 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1858 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1859
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1860 public void allocate() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1861
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1862 /*
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1863 * This is the point to enable debug logging for the whole register allocation.
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1864 */
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1865 try (Indent indent = Debug.logAndIndent("LinearScan allocate")) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1866
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1867 try (Scope s = Debug.scope("LifetimeAnalysis")) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1868 numberInstructions();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1869 printLir("Before register allocation", true);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1870 computeLocalLiveSets();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1871 computeGlobalLiveSets();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1872 buildIntervals();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1873 sortIntervalsBeforeAllocation();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1874 } catch (Throwable e) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1875 throw Debug.handle(e);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1876 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1877
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1878 try (Scope s = Debug.scope("RegisterAllocation")) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1879 printIntervals("Before register allocation");
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1880 allocateRegisters();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1881 } catch (Throwable e) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1882 throw Debug.handle(e);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1883 }
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
1884
16362
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
1885 if (Options.LSRAOptimizeSpillPosition.getValue()) {
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
1886 try (Scope s = Debug.scope("OptimizeSpillPosition")) {
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
1887 optimizeSpillPosition();
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
1888 } catch (Throwable e) {
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
1889 throw Debug.handle(e);
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
1890 }
16357
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1891 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1892
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1893 try (Scope s = Debug.scope("ResolveDataFlow")) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1894 resolveDataFlow();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1895 } catch (Throwable e) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1896 throw Debug.handle(e);
13197
8569b9e047cd change debug scopes implementation to prevent extra frames related to mechanism being added to call stack
Doug Simon <doug.simon@oracle.com>
parents: 12785
diff changeset
1897 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1898
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1899 try (Scope s = Debug.scope("DebugInfo")) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1900 frameMap.finish();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1901
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1902 printIntervals("After register allocation");
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1903 printLir("After register allocation", true);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1904
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1905 sortIntervalsAfterAllocation();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1906
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1907 if (DetailedAsserts.getValue()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1908 verify();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1909 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1910
16372
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1911 try (Scope s1 = Debug.scope("EliminateSpillMove")) {
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1912 eliminateSpillMoves();
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1913 } catch (Throwable e) {
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1914 throw Debug.handle(e);
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1915 }
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1916
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1917 try (Scope s1 = Debug.scope("AssignLocations")) {
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1918 assignLocations();
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1919 } catch (Throwable e) {
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1920 throw Debug.handle(e);
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1921 }
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1922
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1923 if (DetailedAsserts.getValue()) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1924 verifyIntervals();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1925 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1926 } catch (Throwable e) {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1927 throw Debug.handle(e);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1928 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1929
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1930 printLir("After register number assignment", true);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1931 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1932 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1933
16357
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1934 private DebugMetric betterSpillPos = Debug.metric("BetterSpillPosition");
16361
faff09aa5999 LSRA spill optimization: only use predecessor block if it has lower probability than the definition.
Josef Eisl <josef.eisl@jku.at>
parents: 16360
diff changeset
1935 private DebugMetric betterSpillPosWithLowerProbability = Debug.metric("BetterSpillPositionWithLowerProbability");
16357
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1936
16362
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
1937 private void optimizeSpillPosition() {
16378
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1938 LIRInsertionBuffer[] insertionBuffers = new LIRInsertionBuffer[ir.linearScanOrder().size()];
16357
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1939 for (Interval interval : intervals) {
16359
f686fae77383 LSRA spill optimization: rename SpillInDominator.MultipleSpills to SpillState.SpillInDominator.
Josef Eisl <josef.eisl@jku.at>
parents: 16358
diff changeset
1940 if (interval != null && interval.isSplitParent() && interval.spillState() == SpillState.SpillInDominator) {
16357
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1941 AbstractBlock<?> defBlock = blockForId(interval.spillDefinitionPos());
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1942 AbstractBlock<?> spillBlock = null;
16369
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1943 Interval firstSpillChild = null;
16357
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1944 try (Indent indent = Debug.logAndIndent("interval %s (%s)", interval, defBlock)) {
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1945 for (Interval splitChild : interval.getSplitChildren()) {
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1946 if (isStackSlot(splitChild.location())) {
16369
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1947 if (firstSpillChild == null || splitChild.from() < firstSpillChild.from()) {
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1948 firstSpillChild = splitChild;
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1949 } else {
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1950 assert firstSpillChild.from() < splitChild.from();
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1951 }
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1952 // iterate all blocks where the interval has use positions
16376
ef21879c0c8f LSRA spill optimization: rename UseBlockIterator to IntervalBlockIterator.
Josef Eisl <josef.eisl@jku.at>
parents: 16375
diff changeset
1953 for (AbstractBlock<?> splitBlock : blocksForInterval(splitChild)) {
16373
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
1954 if (dominates(defBlock, splitBlock)) {
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
1955 Debug.log("Split interval %s, block %s", splitChild, splitBlock);
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
1956 if (spillBlock == null) {
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
1957 spillBlock = splitBlock;
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
1958 } else {
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
1959 spillBlock = nearestCommonDominator(spillBlock, splitBlock);
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
1960 assert spillBlock != null;
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
1961 }
16364
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
1962 }
16357
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1963 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1964 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1965 }
16360
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1966 if (spillBlock == null) {
16358
9371b9c246ca LSRA spill optimization: spill at earliest dominator.
Josef Eisl <josef.eisl@jku.at>
parents: 16357
diff changeset
1967 // no spill interval
9371b9c246ca LSRA spill optimization: spill at earliest dominator.
Josef Eisl <josef.eisl@jku.at>
parents: 16357
diff changeset
1968 interval.setSpillState(SpillState.StoreAtDefinition);
9371b9c246ca LSRA spill optimization: spill at earliest dominator.
Josef Eisl <josef.eisl@jku.at>
parents: 16357
diff changeset
1969 } else {
16360
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1970 // move out of loops
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1971 if (defBlock.getLoopDepth() < spillBlock.getLoopDepth()) {
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1972 spillBlock = moveSpillOutOfLoop(defBlock, spillBlock);
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1973 }
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1974
16369
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1975 /*
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1976 * If the spill block is the begin of the first split child (aka the value
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1977 * is on the stack) spill in the dominator.
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1978 */
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1979 assert firstSpillChild != null;
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1980 if (!defBlock.equals(spillBlock) && spillBlock.equals(blockForId(firstSpillChild.from()))) {
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1981 AbstractBlock<?> dom = spillBlock.getDominator();
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1982 Debug.log("Spill block (%s) is the beginning of a spill child -> use dominator (%s)", spillBlock, dom);
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1983 spillBlock = dom;
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1984 }
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1985
16360
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1986 if (!defBlock.equals(spillBlock)) {
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1987 assert dominates(defBlock, spillBlock);
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1988 betterSpillPos.increment();
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1989 Debug.log("Better spill position found (Block %s)", spillBlock);
16361
faff09aa5999 LSRA spill optimization: only use predecessor block if it has lower probability than the definition.
Josef Eisl <josef.eisl@jku.at>
parents: 16360
diff changeset
1990
faff09aa5999 LSRA spill optimization: only use predecessor block if it has lower probability than the definition.
Josef Eisl <josef.eisl@jku.at>
parents: 16360
diff changeset
1991 if (defBlock.probability() <= spillBlock.probability()) {
faff09aa5999 LSRA spill optimization: only use predecessor block if it has lower probability than the definition.
Josef Eisl <josef.eisl@jku.at>
parents: 16360
diff changeset
1992 // better spill block has the same probability -> do nothing
faff09aa5999 LSRA spill optimization: only use predecessor block if it has lower probability than the definition.
Josef Eisl <josef.eisl@jku.at>
parents: 16360
diff changeset
1993 interval.setSpillState(SpillState.StoreAtDefinition);
faff09aa5999 LSRA spill optimization: only use predecessor block if it has lower probability than the definition.
Josef Eisl <josef.eisl@jku.at>
parents: 16360
diff changeset
1994 } else {
16378
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1995 LIRInsertionBuffer insertionBuffer = insertionBuffers[spillBlock.getId()];
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1996 if (insertionBuffer == null) {
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1997 insertionBuffer = new LIRInsertionBuffer();
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1998 insertionBuffers[spillBlock.getId()] = insertionBuffer;
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1999 insertionBuffer.init(ir.getLIRforBlock(spillBlock));
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2000 }
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2001 int spillOpId = getFirstLirInstructionId(spillBlock);
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2002 // insert spill move
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2003 AllocatableValue fromLocation = interval.getSplitChildAtOpId(spillOpId, OperandMode.DEF, this).location();
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2004 AllocatableValue toLocation = canonicalSpillOpr(interval);
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2005 LIRInstruction move = ir.getSpillMoveFactory().createMove(toLocation, fromLocation);
16380
8057279ec60e LSRA spill optimization: use DOMINATOR_SPILL_MOVE_ID to mark moves.
Josef Eisl <josef.eisl@jku.at>
parents: 16379
diff changeset
2006 move.setId(DOMINATOR_SPILL_MOVE_ID);
16378
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2007 /*
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2008 * We can use the insertion buffer directly because we always insert
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2009 * at position 1.
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2010 */
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2011 insertionBuffer.append(1, move);
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2012
16361
faff09aa5999 LSRA spill optimization: only use predecessor block if it has lower probability than the definition.
Josef Eisl <josef.eisl@jku.at>
parents: 16360
diff changeset
2013 betterSpillPosWithLowerProbability.increment();
16378
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2014 interval.setSpillDefinitionPos(spillOpId);
16361
faff09aa5999 LSRA spill optimization: only use predecessor block if it has lower probability than the definition.
Josef Eisl <josef.eisl@jku.at>
parents: 16360
diff changeset
2015 }
16360
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
2016 } else {
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
2017 // definition is the best choice
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
2018 interval.setSpillState(SpillState.StoreAtDefinition);
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
2019 }
16357
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2020 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2021 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2022 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2023 }
16378
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2024 for (LIRInsertionBuffer insertionBuffer : insertionBuffers) {
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2025 if (insertionBuffer != null) {
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2026 assert insertionBuffer.initialized() : "Insertion buffer is nonnull but not initialized!";
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2027 insertionBuffer.finish();
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2028 }
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
2029 }
16357
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2030 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2031
16364
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2032 /**
16376
ef21879c0c8f LSRA spill optimization: rename UseBlockIterator to IntervalBlockIterator.
Josef Eisl <josef.eisl@jku.at>
parents: 16375
diff changeset
2033 * Iterate over all {@link AbstractBlock blocks} of an interval.
16364
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2034 */
16376
ef21879c0c8f LSRA spill optimization: rename UseBlockIterator to IntervalBlockIterator.
Josef Eisl <josef.eisl@jku.at>
parents: 16375
diff changeset
2035 private class IntervalBlockIterator implements Iterator<AbstractBlock<?>> {
16364
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2036
16373
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
2037 Range range;
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
2038 AbstractBlock<?> block;
16364
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2039
16376
ef21879c0c8f LSRA spill optimization: rename UseBlockIterator to IntervalBlockIterator.
Josef Eisl <josef.eisl@jku.at>
parents: 16375
diff changeset
2040 public IntervalBlockIterator(Interval interval) {
16373
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
2041 range = interval.first();
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
2042 block = blockForId(range.from);
16364
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2043 }
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2044
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2045 public AbstractBlock<?> next() {
16373
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
2046 AbstractBlock<?> currentBlock = block;
16364
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2047 int nextBlockIndex = block.getLinearScanNumber() + 1;
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2048 if (nextBlockIndex < sortedBlocks.size()) {
16373
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
2049 block = sortedBlocks.get(nextBlockIndex);
16375
ff14306337f2 LSRA spill optimization: fix UseBlockIterator.
Josef Eisl <josef.eisl@jku.at>
parents: 16374
diff changeset
2050 if (range.to <= getFirstLirInstructionId(block)) {
16373
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
2051 range = range.next;
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
2052 if (range == Range.EndMarker) {
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
2053 block = null;
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
2054 } else {
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
2055 block = blockForId(range.from);
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
2056 }
16370
3324ab9fe71a LSRA spill optimization: iterate all ranges of spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16369
diff changeset
2057 }
16364
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2058 } else {
16373
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
2059 block = null;
16364
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2060 }
16373
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
2061 return currentBlock;
16364
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2062 }
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2063
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2064 public boolean hasNext() {
16373
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
2065 return block != null;
16364
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2066 }
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2067 }
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2068
16376
ef21879c0c8f LSRA spill optimization: rename UseBlockIterator to IntervalBlockIterator.
Josef Eisl <josef.eisl@jku.at>
parents: 16375
diff changeset
2069 private Iterable<AbstractBlock<?>> blocksForInterval(Interval interval) {
16364
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2070 return new Iterable<AbstractBlock<?>>() {
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2071 public Iterator<AbstractBlock<?>> iterator() {
16376
ef21879c0c8f LSRA spill optimization: rename UseBlockIterator to IntervalBlockIterator.
Josef Eisl <josef.eisl@jku.at>
parents: 16375
diff changeset
2072 return new IntervalBlockIterator(interval);
16364
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2073 }
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2074 };
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2075 }
a54a64af1e82 LSRA spill optimization: take all blocks (with usepos) of a spill interval into account.
Josef Eisl <josef.eisl@jku.at>
parents: 16363
diff changeset
2076
16360
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
2077 private static AbstractBlock<?> moveSpillOutOfLoop(AbstractBlock<?> defBlock, AbstractBlock<?> spillBlock) {
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
2078 int defLoopDepth = defBlock.getLoopDepth();
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
2079 for (AbstractBlock<?> block = spillBlock.getDominator(); !defBlock.equals(block); block = block.getDominator()) {
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
2080 assert block != null : "spill block not dominated by definition block?";
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
2081 if (block.getLoopDepth() <= defLoopDepth) {
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
2082 assert block.getLoopDepth() == defLoopDepth : "Cannot spill an interval outside of the loop where it is defined!";
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
2083 return block;
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
2084 }
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
2085 }
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
2086 return defBlock;
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
2087 }
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
2088
16357
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2089 private AbstractBlock<?> nearestCommonDominator(AbstractBlock<?> a, AbstractBlock<?> b) {
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2090 assert a != null;
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2091 assert b != null;
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2092 try (Indent indent = Debug.logAndIndent("nearest common dominator of %s and %s", a, b)) {
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2093
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2094 if (a.equals(b)) {
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2095 return a;
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2096 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2097
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2098 // collect a's dominators
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2099 BitSet aDom = new BitSet(sortedBlocks.size());
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2100
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2101 // a != b
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2102 for (AbstractBlock<?> x = a; x != null; x = x.getDominator()) {
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2103 aDom.set(x.getId());
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2104 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2105
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2106 // walk b's dominator
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2107 for (AbstractBlock<?> x = b; x != null; x = x.getDominator()) {
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2108 if (aDom.get(x.getId())) {
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2109 Debug.log("found %s", x);
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2110 return x;
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2111 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2112 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2113 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2114 Debug.log("no common dominator found");
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2115 return null;
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2116 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
2117
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2118 void printIntervals(String label) {
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2119 if (Debug.isLogEnabled()) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2120 try (Indent indent = Debug.logAndIndent("intervals %s", label)) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2121 for (Interval interval : intervals) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2122 if (interval != null) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2123 Debug.log("%s", interval.logString(this));
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2124 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2125 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2126
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2127 try (Indent indent2 = Debug.logAndIndent("Basic Blocks")) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2128 for (int i = 0; i < blockCount(); i++) {
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
2129 AbstractBlock<?> block = blockAt(i);
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2130 Debug.log("B%d [%d, %d, %s] ", block.getId(), getFirstLirInstructionId(block), getLastLirInstructionId(block), block.getLoop());
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2131 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2132 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2133 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2134 }
4353
043bec543161 More work on debug framework. Removed concept of GraalContext.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 4352
diff changeset
2135 Debug.dump(Arrays.copyOf(intervals, intervalsSize), label);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2136 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2137
7556
630ea5001e33 Modified formatter settings to not insert line break after annotation on parameters.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 7530
diff changeset
2138 void printLir(String label, @SuppressWarnings("unused") boolean hirValid) {
4353
043bec543161 More work on debug framework. Removed concept of GraalContext.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 4352
diff changeset
2139 Debug.dump(ir, label);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2140 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2141
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2142 boolean verify() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2143 // (check that all intervals have a correct register and that no registers are overwritten)
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2144 verifyIntervals();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2145
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2146 verifyRegisters();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2147
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2148 Debug.log("no errors found");
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2149
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2150 return true;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2151 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2152
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2153 private void verifyRegisters() {
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2154 // Enable this logging to get output for the verification process.
13546
43bd3d7254d1 don?t explicitly disable debug log output in linear scan and graphbuilder
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13467
diff changeset
2155 try (Indent indent = Debug.logAndIndent("verifying register allocation")) {
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2156 RegisterVerifier verifier = new RegisterVerifier(this);
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2157 verifier.verify(blockAt(0));
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2158 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2159 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2160
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2161 void verifyIntervals() {
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2162 try (Indent indent = Debug.logAndIndent("verifying intervals")) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2163 int len = intervalsSize;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2164
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2165 for (int i = 0; i < len; i++) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2166 Interval i1 = intervals[i];
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2167 if (i1 == null) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2168 continue;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2169 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2170
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2171 i1.checkSplitChildren();
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2172
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2173 if (i1.operandNumber != i) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2174 Debug.log("Interval %d is on position %d in list", i1.operandNumber, i);
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2175 Debug.log(i1.logString(this));
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2176 throw new GraalInternalError("");
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2177 }
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2178
16118
5cbaad0b7387 Verify usage of equals method in LIRKind.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
2179 if (isVariable(i1.operand) && i1.kind().equals(LIRKind.Illegal)) {
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2180 Debug.log("Interval %d has no type assigned", i1.operandNumber);
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2181 Debug.log(i1.logString(this));
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2182 throw new GraalInternalError("");
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2183 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2184
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2185 if (i1.location() == null) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2186 Debug.log("Interval %d has no register assigned", i1.operandNumber);
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2187 Debug.log(i1.logString(this));
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2188 throw new GraalInternalError("");
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2189 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2190
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2191 if (i1.first() == Range.EndMarker) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2192 Debug.log("Interval %d has no Range", i1.operandNumber);
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2193 Debug.log(i1.logString(this));
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2194 throw new GraalInternalError("");
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2195 }
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2196
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2197 for (Range r = i1.first(); r != Range.EndMarker; r = r.next) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2198 if (r.from >= r.to) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2199 Debug.log("Interval %d has zero length range", i1.operandNumber);
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2200 Debug.log(i1.logString(this));
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2201 throw new GraalInternalError("");
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2202 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2203 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2204
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2205 for (int j = i + 1; j < len; j++) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2206 Interval i2 = intervals[j];
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2207 if (i2 == null) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2208 continue;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2209 }
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2210
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2211 // special intervals that are created in MoveResolver
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2212 // . ignore them because the range information has no meaning there
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2213 if (i1.from() == 1 && i1.to() == 2) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2214 continue;
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2215 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2216 if (i2.from() == 1 && i2.to() == 2) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2217 continue;
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2218 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2219 Value l1 = i1.location();
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2220 Value l2 = i2.location();
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2221 if (i1.intersects(i2) && !isIllegal(l1) && (l1.equals(l2))) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2222 if (DetailedAsserts.getValue()) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2223 Debug.log("Intervals %d and %d overlap and have the same register assigned", i1.operandNumber, i2.operandNumber);
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2224 Debug.log(i1.logString(this));
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2225 Debug.log(i2.logString(this));
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2226 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2227 throw new BailoutException("");
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2228 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2229 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2230 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2231 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2232 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2233
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2234 class CheckProcedure extends ValueProcedure {
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
2235
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2236 boolean ok;
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2237 Interval curInterval;
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2238
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2239 @Override
5539
bc647d8b0080 Renaming RiValue => Value.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5536
diff changeset
2240 protected Value doValue(Value operand) {
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2241 if (isRegister(operand)) {
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2242 if (intervalFor(operand) == curInterval) {
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2243 ok = true;
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2244 }
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2245 }
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2246 return operand;
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2247 }
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2248 }
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2249
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2250 void verifyNoOopsInFixedIntervals() {
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2251 try (Indent indent = Debug.logAndIndent("verifying that no oops are in fixed intervals *")) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2252 CheckProcedure checkProc = new CheckProcedure();
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2253
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2254 Interval fixedIntervals;
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2255 Interval otherIntervals;
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2256 fixedIntervals = createUnhandledLists(IS_PRECOLORED_INTERVAL, null).first;
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2257 // to ensure a walking until the last instruction id, add a dummy interval
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2258 // with a high operation id
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2259 otherIntervals = new Interval(Value.ILLEGAL, -1);
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2260 otherIntervals.addRange(Integer.MAX_VALUE - 2, Integer.MAX_VALUE - 1);
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2261 IntervalWalker iw = new IntervalWalker(this, fixedIntervals, otherIntervals);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2262
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
2263 for (AbstractBlock<?> block : sortedBlocks) {
14806
a8723f1ff542 LIR renamed setter and getter functions.
Josef Eisl <josef.eisl@jku.at>
parents: 14789
diff changeset
2264 List<LIRInstruction> instructions = ir.getLIRforBlock(block);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2265
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2266 for (int j = 0; j < instructions.size(); j++) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2267 LIRInstruction op = instructions.get(j);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2268
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2269 if (op.hasState()) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2270 iw.walkBefore(op.id());
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2271 boolean checkLive = true;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2272
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2273 // Make sure none of the fixed registers is live across an
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2274 // oopmap since we can't handle that correctly.
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2275 if (checkLive) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2276 for (Interval interval = iw.activeLists.get(RegisterBinding.Fixed); interval != Interval.EndMarker; interval = interval.next) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2277 if (interval.currentTo() > op.id() + 1) {
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2278 // This interval is live out of this op so make sure
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2279 // that this interval represents some value that's
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2280 // referenced by this op either as an input or output.
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2281 checkProc.curInterval = interval;
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2282 checkProc.ok = false;
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2283
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2284 op.forEachInput(checkProc);
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2285 op.forEachAlive(checkProc);
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2286 op.forEachTemp(checkProc);
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2287 op.forEachOutput(checkProc);
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2288
13467
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2289 assert checkProc.ok : "fixed intervals should never be live across an oopmap point";
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2290 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2291 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2292 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2293 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2294 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2295 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2296 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2297 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2298
14070
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2299 /**
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2300 * Returns a value for a interval definition, which can be used for re-materialization.
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
2301 *
14070
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2302 * @param op An instruction which defines a value
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2303 * @param operand The destination operand of the instruction
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2304 * @param interval The interval for this defined value.
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2305 * @return Returns the value which is moved to the instruction and which can be reused at all
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2306 * reload-locations in case the interval of this instruction is spilled. Currently this
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2307 * can only be a {@link Constant}.
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2308 */
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2309 public static Constant getMaterializedValue(LIRInstruction op, Value operand, Interval interval) {
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2310 if (op instanceof MoveOp) {
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2311 MoveOp move = (MoveOp) op;
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2312 if (move.getInput() instanceof Constant) {
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2313 /*
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2314 * Check if the interval has any uses which would accept an stack location (priority
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2315 * == ShouldHaveRegister). Rematerialization of such intervals can result in a
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2316 * degradation, because rematerialization always inserts a constant load, even if
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2317 * the value is not needed in a register.
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2318 */
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2319 Interval.UsePosList usePosList = interval.usePosList();
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2320 int numUsePos = usePosList.size();
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2321 for (int useIdx = 0; useIdx < numUsePos; useIdx++) {
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2322 Interval.RegisterPriority priority = usePosList.registerPriority(useIdx);
15920
4b835260c746 backout 88a6017687c9
Josef Eisl <josef.eisl@jku.at>
parents: 15914
diff changeset
2323 if (priority == Interval.RegisterPriority.ShouldHaveRegister) {
14070
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2324 return null;
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2325 }
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2326 }
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2327 return (Constant) move.getInput();
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2328 }
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2329 }
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2330 return null;
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2331 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2332 }