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annotate graal/com.oracle.graal.lir/src/com/oracle/graal/lir/alloc/lsra/LinearScan.java @ 19549:1cf73c50e3dc

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Move SpillMoveFactory from LIR to LIRGeneratorTool.
author Josef Eisl <josef.eisl@jku.at>
date Thu, 12 Feb 2015 15:38:27 +0100
parents 95a7954ea155
children a33fe10c4d93
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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.lir.alloc.lsra;
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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.common.GraalOptions.*;
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28 import static com.oracle.graal.compiler.common.cfg.AbstractControlFlowGraph.*;
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29 import static com.oracle.graal.lir.LIRValueUtil.*;
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30 import static com.oracle.graal.lir.debug.LIRGenerationDebugContext.*;
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31
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32 import java.util.*;
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33
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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.common.*;
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37 import com.oracle.graal.compiler.common.alloc.*;
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38 import com.oracle.graal.compiler.common.cfg.*;
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39 import com.oracle.graal.compiler.common.util.*;
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40 import com.oracle.graal.debug.*;
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41 import com.oracle.graal.debug.Debug.Scope;
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42 import com.oracle.graal.lir.*;
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43 import com.oracle.graal.lir.LIRInstruction.OperandFlag;
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44 import com.oracle.graal.lir.LIRInstruction.OperandMode;
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45 import com.oracle.graal.lir.StandardOp.MoveOp;
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46 import com.oracle.graal.lir.alloc.lsra.Interval.RegisterBinding;
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47 import com.oracle.graal.lir.alloc.lsra.Interval.RegisterPriority;
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48 import com.oracle.graal.lir.alloc.lsra.Interval.SpillState;
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49 import com.oracle.graal.lir.framemap.*;
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50 import com.oracle.graal.lir.gen.*;
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51 import com.oracle.graal.lir.gen.LIRGeneratorTool.SpillMoveFactory;
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52 import com.oracle.graal.options.*;
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53
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54 /**
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55 * An implementation of the linear scan register allocator algorithm described in <a
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56 * href="http://doi.acm.org/10.1145/1064979.1064998"
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57 * >"Optimized Interval Splitting in a Linear Scan Register Allocator"</a> by Christian Wimmer and
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58 * Hanspeter Moessenboeck.
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59 */
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60 final class LinearScan {
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61
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62 final TargetDescription target;
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63 final LIRGenerationResult res;
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64 final LIR ir;
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65 final FrameMapBuilder frameMapBuilder;
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66 final SpillMoveFactory spillMoveFactory;
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67 final RegisterAttributes[] registerAttributes;
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68 final Register[] registers;
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69
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70 final boolean callKillsRegisters;
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71
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72 public static final int DOMINATOR_SPILL_MOVE_ID = -2;
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73 private static final int SPLIT_INTERVALS_CAPACITY_RIGHT_SHIFT = 1;
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74
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75 public static class Options {
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76 // @formatter:off
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77 @Option(help = "Enable spill position optimization", type = OptionType.Debug)
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78 public static final OptionValue<Boolean> LSRAOptimizeSpillPosition = new OptionValue<>(true);
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79 // @formatter:on
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80 }
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81
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82 public static class BlockData {
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83
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84 /**
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85 * Bit map specifying which operands are live upon entry to this block. These are values
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86 * used in this block or any of its successors where such value are not defined in this
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87 * block. The bit index of an operand is its {@linkplain LinearScan#operandNumber(Value)
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88 * operand number}.
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89 */
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90 public BitSet liveIn;
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91
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92 /**
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93 * Bit map specifying which operands are live upon exit from this block. These are values
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94 * used in a successor block that are either defined in this block or were live upon entry
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95 * to this block. The bit index of an operand is its
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96 * {@linkplain LinearScan#operandNumber(Value) operand number}.
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97 */
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98 public BitSet liveOut;
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99
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100 /**
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101 * Bit map specifying which operands are used (before being defined) in this block. That is,
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102 * these are the values that are live upon entry to the block. The bit index of an operand
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103 * is its {@linkplain LinearScan#operandNumber(Value) operand number}.
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104 */
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105 public BitSet liveGen;
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106
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107 /**
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108 * Bit map specifying which operands are defined/overwritten in this block. The bit index of
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109 * an operand is its {@linkplain LinearScan#operandNumber(Value) operand number}.
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110 */
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111 public BitSet liveKill;
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112 }
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113
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114 final BlockMap<BlockData> blockData;
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115
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116 /**
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117 * List of blocks in linear-scan order. This is only correct as long as the CFG does not change.
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118 */
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119 final List<? extends AbstractBlock<?>> sortedBlocks;
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120
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121 /**
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122 * Map from {@linkplain #operandNumber(Value) operand numbers} to intervals.
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123 */
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124 Interval[] intervals;
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125
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126 /**
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127 * The number of valid entries in {@link #intervals}.
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128 */
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129 int intervalsSize;
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130
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131 /**
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132 * The index of the first entry in {@link #intervals} for a
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133 * {@linkplain #createDerivedInterval(Interval) derived interval}.
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134 */
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135 int firstDerivedIntervalIndex = -1;
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136
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137 /**
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138 * Intervals sorted by {@link Interval#from()}.
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139 */
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140 Interval[] sortedIntervals;
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141
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142 /**
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143 * Map from an instruction {@linkplain LIRInstruction#id id} to the instruction. Entries should
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144 * be retrieved with {@link #instructionForId(int)} as the id is not simply an index into this
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145 * array.
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146 */
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147 LIRInstruction[] opIdToInstructionMap;
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148
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149 /**
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150 * Map from an instruction {@linkplain LIRInstruction#id id} to the {@linkplain AbstractBlock
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151 * block} containing the instruction. Entries should be retrieved with {@link #blockForId(int)}
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152 * as the id is not simply an index into this array.
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153 */
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154 AbstractBlock<?>[] opIdToBlockMap;
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155
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156 /**
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157 * Bit set for each variable that is contained in each loop.
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158 */
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159 BitMap2D intervalInLoop;
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160
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161 /**
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162 * The {@linkplain #operandNumber(Value) number} of the first variable operand allocated.
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163 */
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164 private final int firstVariableNumber;
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165
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166 LinearScan(TargetDescription target, LIRGenerationResult res, SpillMoveFactory spillMoveFactory) {
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167 this.target = target;
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168 this.res = res;
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169 this.ir = res.getLIR();
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170 this.spillMoveFactory = spillMoveFactory;
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171 this.frameMapBuilder = res.getFrameMapBuilder();
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172 this.sortedBlocks = ir.linearScanOrder();
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22f2e42923de Use FrameMapBuilder in LinearScan (except for location marking).
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173 this.registerAttributes = frameMapBuilder.getRegisterConfig().getAttributesMap();
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174
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175 this.registers = target.arch.getRegisters();
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176 this.firstVariableNumber = registers.length;
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177 this.blockData = new BlockMap<>(ir.getControlFlowGraph());
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178
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179 // If all allocatable registers are caller saved, then no registers are live across a call
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180 // site. The register allocator can save time not trying to find a register at a call site.
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181 this.callKillsRegisters = this.frameMapBuilder.getRegisterConfig().areAllAllocatableRegistersCallerSaved();
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182 }
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183
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184 int getFirstLirInstructionId(AbstractBlock<?> block) {
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185 int result = ir.getLIRforBlock(block).get(0).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 int getLastLirInstructionId(AbstractBlock<?> block) {
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191 List<LIRInstruction> instructions = ir.getLIRforBlock(block);
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192 int result = instructions.get(instructions.size() - 1).id();
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193 assert result >= 0;
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194 return result;
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195 }
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196
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197 SpillMoveFactory getSpillMoveFactory() {
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198 return spillMoveFactory;
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199 }
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200
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201 public static boolean isVariableOrRegister(Value value) {
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202 return isVariable(value) || isRegister(value);
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203 }
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204
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205 /**
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206 * Converts an operand (variable or register) to an index in a flat address space covering all
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207 * the {@linkplain Variable variables} and {@linkplain RegisterValue registers} being processed
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208 * by this allocator.
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209 */
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210 private int operandNumber(Value operand) {
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211 if (isRegister(operand)) {
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212 int number = asRegister(operand).number;
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213 assert number < firstVariableNumber;
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214 return number;
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215 }
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216 assert isVariable(operand) : operand;
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217 return firstVariableNumber + ((Variable) operand).index;
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218 }
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219
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220 /**
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221 * Gets the number of operands. This value will increase by 1 for new variable.
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222 */
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223 private int operandSize() {
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224 return firstVariableNumber + ir.numVariables();
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225 }
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226
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227 /**
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228 * Gets the highest operand number for a register operand. This value will never change.
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229 */
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230 int maxRegisterNumber() {
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231 return firstVariableNumber - 1;
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232 }
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233
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diff changeset
234 static final IntervalPredicate IS_PRECOLORED_INTERVAL = new IntervalPredicate() {
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235
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236 @Override
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237 public boolean apply(Interval i) {
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diff changeset
238 return isRegister(i.operand);
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239 }
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240 };
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241
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242 static final IntervalPredicate IS_VARIABLE_INTERVAL = new IntervalPredicate() {
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diff changeset
243
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244 @Override
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245 public boolean apply(Interval i) {
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246 return isVariable(i.operand);
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247 }
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248 };
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249
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diff changeset
250 static final IntervalPredicate IS_STACK_INTERVAL = new IntervalPredicate() {
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251
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252 @Override
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253 public boolean apply(Interval i) {
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254 return !isRegister(i.operand);
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255 }
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256 };
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257
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258 /**
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259 * Gets an object describing the attributes of a given register according to this register
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260 * configuration.
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diff changeset
261 */
5547
b6617d13ea44 Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5542
diff changeset
262 RegisterAttributes attributes(Register reg) {
3733
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parents:
diff changeset
263 return registerAttributes[reg.number];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
264 }
e233f5660da4 Added Java files from Maxine project.
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parents:
diff changeset
265
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
266 void assignSpillSlot(Interval interval) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
267 // assign the canonical spill slot of the parent (if a part of the interval
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
268 // is already spilled) or allocate a new spill slot
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
269 if (interval.canMaterialize()) {
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
270 interval.assignLocation(Value.ILLEGAL);
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
271 } else if (interval.spillSlot() != null) {
3733
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diff changeset
272 interval.assignLocation(interval.spillSlot());
e233f5660da4 Added Java files from Maxine project.
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parents:
diff changeset
273 } else {
18425
b856446ff7e0 Introduce StackSlotValue and VirtualStackSlot.
Josef Eisl <josef.eisl@jku.at>
parents: 18420
diff changeset
274 VirtualStackSlot slot = frameMapBuilder.allocateSpillSlot(interval.kind());
3733
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diff changeset
275 interval.setSpillSlot(slot);
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parents:
diff changeset
276 interval.assignLocation(slot);
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parents:
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277 }
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parents:
diff changeset
278 }
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parents:
diff changeset
279
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
280 /**
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parents:
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281 * Creates a new interval.
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667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
282 *
3733
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283 * @param operand the operand for the interval
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parents:
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284 * @return the created interval
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
285 */
9297
a5f2b9012865 Interval locations can only be AllocatableValues.
Roland Schatz <roland.schatz@oracle.com>
parents: 8402
diff changeset
286 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
287 assert isLegal(operand);
3733
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288 int operandNumber = operandNumber(operand);
4352
5a84f5548fc4 More work on new debug infrastructure.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 4350
diff changeset
289 Interval interval = new Interval(operand, operandNumber);
3733
e233f5660da4 Added Java files from Maxine project.
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parents:
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290 assert operandNumber < intervalsSize;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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291 assert intervals[operandNumber] == null;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
292 intervals[operandNumber] = interval;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
293 return interval;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
294 }
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parents:
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295
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
296 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
297 * Creates an interval as a result of splitting or spilling another interval.
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
298 *
3733
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299 * @param source an interval being split of spilled
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
300 * @return a new interval derived from {@code source}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
301 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
302 Interval createDerivedInterval(Interval source) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
303 if (firstDerivedIntervalIndex == -1) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
304 firstDerivedIntervalIndex = intervalsSize;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
305 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
306 if (intervalsSize == intervals.length) {
15885
4d18c6bb6b3a LinearScan: Improve initialization and resizing of intervals array.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15884
diff changeset
307 intervals = Arrays.copyOf(intervals, intervals.length + (intervals.length >> SPLIT_INTERVALS_CAPACITY_RIGHT_SHIFT));
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
308 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
309 intervalsSize++;
9425
3ec29630cfb4 Use register categories instead of register flags.
Roland Schatz <roland.schatz@oracle.com>
parents: 9422
diff changeset
310 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
311
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
312 Interval interval = createInterval(variable);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
313 assert intervals[intervalsSize - 1] == interval;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
314 return interval;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
315 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
316
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
317 // access to block list (sorted in linear scan order)
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
318 int blockCount() {
7501
799dd373fcb6 Remove caching of sorted blocks in LSRA.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 7499
diff changeset
319 return sortedBlocks.size();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
320 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
321
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
322 AbstractBlock<?> blockAt(int index) {
7501
799dd373fcb6 Remove caching of sorted blocks in LSRA.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 7499
diff changeset
323 return sortedBlocks.get(index);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
324 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
325
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
326 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
327 * 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
328 * block. These sets do not include any operands allocated as a result of creating
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
329 * {@linkplain #createDerivedInterval(Interval) derived intervals}.
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
330 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
331 int liveSetSize() {
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
332 return firstDerivedIntervalIndex == -1 ? operandSize() : firstDerivedIntervalIndex;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
333 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
334
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
335 int numLoops() {
15107
1bf700e19e84 Make Loop generic.
Josef Eisl <josef.eisl@jku.at>
parents: 15026
diff changeset
336 return ir.getControlFlowGraph().getLoops().size();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
337 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
338
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
339 boolean isIntervalInLoop(int interval, int loop) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
340 return intervalInLoop.at(interval, loop);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
341 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
342
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
343 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
344 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
345 }
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
346
5539
bc647d8b0080 Renaming RiValue => Value.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5536
diff changeset
347 Interval intervalFor(Value operand) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
348 int operandNumber = operandNumber(operand);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
349 assert operandNumber < intervalsSize;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
350 return intervals[operandNumber];
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
9297
a5f2b9012865 Interval locations can only be AllocatableValues.
Roland Schatz <roland.schatz@oracle.com>
parents: 8402
diff changeset
353 Interval getOrCreateInterval(AllocatableValue operand) {
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
354 Interval ret = intervalFor(operand);
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
355 if (ret == null) {
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
356 return createInterval(operand);
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
357 } else {
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
358 return ret;
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
359 }
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
360 }
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
361
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
362 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
363 * 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
364 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
365 int maxOpId() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
366 assert opIdToInstructionMap.length > 0 : "no operations";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
367 return (opIdToInstructionMap.length - 1) << 1;
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
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
370 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
371 * 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
372 * 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
373 * 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
374 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
375 static int opIdToIndex(int opId) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
376 return opId >> 1;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
377 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
378
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 * 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
381 *
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
382 * @param opId an instruction {@linkplain LIRInstruction#id id}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
383 * @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
384 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
385 LIRInstruction instructionForId(int opId) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
386 assert isEven(opId) : "opId not even";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
387 LIRInstruction instr = opIdToInstructionMap[opIdToIndex(opId)];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
388 assert instr.id() == opId;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
389 return instr;
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 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
393 * 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
394 *
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
395 * @param opId an instruction {@linkplain LIRInstruction#id id}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
396 * @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
397 */
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
398 AbstractBlock<?> blockForId(int opId) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
399 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
400 return opIdToBlockMap[opIdToIndex(opId)];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
401 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
402
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
403 boolean isBlockBegin(int opId) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
404 return opId == 0 || blockForId(opId) != blockForId(opId - 1);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
405 }
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 coversBlockBegin(int opId1, int opId2) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
408 return blockForId(opId1) != blockForId(opId2);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
409 }
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 * 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
413 *
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
414 * @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
415 * @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
416 * registers.
3733
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 boolean hasCall(int opId) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
419 assert isEven(opId) : "opId not even";
9454
85a836bcd796 renaming for improved clarity: hasCall -> destroysCallerSavedRegisters
Doug Simon <doug.simon@oracle.com>
parents: 9425
diff changeset
420 return instructionForId(opId).destroysCallerSavedRegisters();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
421 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
422
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
423 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
424 * 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
425 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
426 void changeSpillDefinitionPos(Interval interval, int defPos) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
427 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
428
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
429 switch (interval.spillState()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
430 case NoDefinitionFound:
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
431 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
432 interval.setSpillDefinitionPos(defPos);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
433 interval.setSpillState(SpillState.NoSpillStore);
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 NoSpillStore:
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
437 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
438 if (defPos < interval.spillDefinitionPos() - 2) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
439 // 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
440 interval.setSpillState(SpillState.NoOptimization);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
441 } else {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
442 // 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
443 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
444 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
445 break;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
446
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
447 case NoOptimization:
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
448 // nothing to do
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
449 break;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
450
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
451 default:
5547
b6617d13ea44 Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5542
diff changeset
452 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
453 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
454 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
455
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
456 // called during register allocation
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
457 void changeSpillState(Interval interval, int spillPos) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
458 switch (interval.spillState()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
459 case NoSpillStore: {
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4394
diff changeset
460 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
461 int spillLoopDepth = blockForId(spillPos).getLoopDepth();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
462
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
463 if (defLoopDepth < spillLoopDepth) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
464 // 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
465 // 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
466 if (Options.LSRAOptimizeSpillPosition.getValue()) {
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
467 // 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
468 interval.setSpillState(SpillState.SpillInDominator);
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
469 } else {
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
470 // 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
471 interval.setSpillState(SpillState.StoreAtDefinition);
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
472 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
473 } else {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
474 // 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
475 // reason to store the interval at the definition
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
476 interval.setSpillState(SpillState.OneSpillStore);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
477 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
478 break;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
479 }
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 case OneSpillStore: {
16362
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
482 if (Options.LSRAOptimizeSpillPosition.getValue()) {
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
483 // 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
484 interval.setSpillState(SpillState.SpillInDominator);
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
485 } else {
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
486 // 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
487 // memory at the definition
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
488 interval.setSpillState(SpillState.StoreAtDefinition);
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
489 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
490 break;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
491 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
492
16359
f686fae77383 LSRA spill optimization: rename SpillInDominator.MultipleSpills to SpillState.SpillInDominator.
Josef Eisl <josef.eisl@jku.at>
parents: 16358
diff changeset
493 case SpillInDominator:
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
494 case StoreAtDefinition:
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
495 case StartInMemory:
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
496 case NoOptimization:
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
497 case NoDefinitionFound:
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
498 // nothing to do
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
499 break;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
500
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
501 default:
5547
b6617d13ea44 Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5542
diff changeset
502 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
503 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
504 }
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 abstract static class IntervalPredicate {
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
507
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
508 abstract boolean apply(Interval i);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
509 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
510
16379
c5257d58b71a LSRA spill optimization: backout changesets obsoleted by eager spill move placement.
Josef Eisl <josef.eisl@jku.at>
parents: 16378
diff changeset
511 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
512
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
513 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
514 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
515 return i.isSplitParent() && i.spillState() == SpillState.StoreAtDefinition;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
516 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
517 };
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
518
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
519 // called once before assignment of register numbers
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
520 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
521 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
522
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
523 // 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
524 // 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
525 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
526 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
527 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
528 checkIntervals(interval);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
529 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
530
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
531 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
532 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
533 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
534 int numInst = instructions.size();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
535
16379
c5257d58b71a LSRA spill optimization: backout changesets obsoleted by eager spill move placement.
Josef Eisl <josef.eisl@jku.at>
parents: 16378
diff changeset
536 // 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
537 // 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
538 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
539 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
540 int opId = op.id();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
541
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
542 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
543 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
544 // 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
545 // correct.
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
546 // 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
547 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
548
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
549 Interval curInterval = intervalFor(move.getResult());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
550
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
551 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
552 // 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
553 // instruction
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
554 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
555 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
556 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
557 // 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
558 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
559 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
560
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
561 } else {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
562 // 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
563 // 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
564 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
565 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
566
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
567 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
568 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
569 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
570 // 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
571 // 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
572 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
573 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
574
16379
c5257d58b71a LSRA spill optimization: backout changesets obsoleted by eager spill move placement.
Josef Eisl <josef.eisl@jku.at>
parents: 16378
diff changeset
575 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
576 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
577
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
578 assert isRegister(fromLocation) : "from operand must be a register but is: " + fromLocation + " toLocation=" + toLocation + " spillState=" + interval.spillState();
18436
59e65d3aa2fc Use StackSlotValue where appropriate.
Josef Eisl <josef.eisl@jku.at>
parents: 18425
diff changeset
579 assert isStackSlotValue(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
580
19549
1cf73c50e3dc Move SpillMoveFactory from LIR to LIRGeneratorTool.
Josef Eisl <josef.eisl@jku.at>
parents: 19212
diff changeset
581 insertionBuffer.append(j + 1, 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
582
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
583 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
584 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
585 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
586 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
587 }
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
588 } // end of instruction iteration
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
589
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
590 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
591 insertionBuffer.finish();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
592 }
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
593 } // end of block iteration
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
594
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
595 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
596 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
597 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
598
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
599 private static void checkIntervals(Interval interval) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
600 Interval prev = null;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
601 Interval temp = interval;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
602 while (temp != Interval.EndMarker) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
603 assert temp.spillDefinitionPos() > 0 : "invalid spill definition pos";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
604 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
605 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
606 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
607 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
608
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
609 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
610 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
611 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
612
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
613 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
614
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
615 prev = temp;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
616 temp = temp.next;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
617 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
618 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
619
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
620 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
621 * 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
622 * {@linkplain ComputeBlockOrder linear scan order}.
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
623 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
624 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
625
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
626 intervalsSize = operandSize();
15885
4d18c6bb6b3a LinearScan: Improve initialization and resizing of intervals array.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15884
diff changeset
627 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
628
17294
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
629 ValueConsumer setVariableConsumer = (value, mode, flags) -> {
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
630 if (isVariable(value)) {
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
631 getOrCreateInterval(asVariable(value));
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
632 }
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
633 };
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
634
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
635 // 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
636 int numInstructions = 0;
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
637 for (AbstractBlock<?> block : sortedBlocks) {
14806
a8723f1ff542 LIR renamed setter and getter functions.
Josef Eisl <josef.eisl@jku.at>
parents: 14789
diff changeset
638 numInstructions += ir.getLIRforBlock(block).size();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
639 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
640
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
641 // initialize with correct length
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
642 opIdToInstructionMap = new LIRInstruction[numInstructions];
14789
1596a21c4194 Move remaining Block references in LinearScan to AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14152
diff changeset
643 opIdToBlockMap = new AbstractBlock<?>[numInstructions];
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
644
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
645 int opId = 0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
646 int index = 0;
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
647 for (AbstractBlock<?> block : sortedBlocks) {
4435
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4394
diff changeset
648 blockData.put(block, new BlockData());
57cb8ec5f6bb Restructure block and control flow graph data structures
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4394
diff changeset
649
14806
a8723f1ff542 LIR renamed setter and getter functions.
Josef Eisl <josef.eisl@jku.at>
parents: 14789
diff changeset
650 List<LIRInstruction> instructions = ir.getLIRforBlock(block);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
651
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
652 int numInst = instructions.size();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
653 for (int j = 0; j < numInst; j++) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
654 LIRInstruction op = instructions.get(j);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
655 op.setId(opId);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
656
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
657 opIdToInstructionMap[index] = op;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
658 opIdToBlockMap[index] = block;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
659 assert instructionForId(opId) == op : "must match";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
660
16801
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
661 op.visitEachTemp(setVariableConsumer);
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
662 op.visitEachOutput(setVariableConsumer);
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
663
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
664 index++;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
665 opId += 2; // numbering of lirOps by two
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
666 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
667 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
668 assert index == numInstructions : "must match";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
669 assert (index << 1) == opId : "must match: " + (index << 1);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
670 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
671
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
672 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
673 * 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
674 * separately for each block.
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
675 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
676 void computeLocalLiveSets() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
677 int liveSize = liveSetSize();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
678
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
679 intervalInLoop = new BitMap2D(operandSize(), numLoops());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
680
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
681 // iterate all blocks
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
682 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
683 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
684
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
685 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
686 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
687
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
688 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
689 int numInst = instructions.size();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
690
17294
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
691 ValueConsumer useConsumer = (operand, mode, flags) -> {
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
692 if (isVariable(operand)) {
15887
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
693 int operandNum = operandNumber(operand);
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
694 if (!liveKill.get(operandNum)) {
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
695 liveGen.set(operandNum);
17294
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
696 Debug.log("liveGen for operand %d", operandNum);
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
697 }
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
698 if (block.getLoop() != null) {
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
699 intervalInLoop.setBit(operandNum, block.getLoop().getIndex());
15887
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
700 }
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
701 }
17294
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
702
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
703 if (DetailedAsserts.getValue()) {
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
704 verifyInput(block, liveKill, operand);
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
705 }
15887
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
706 };
17294
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
707 ValueConsumer stateConsumer = (operand, mode, flags) -> {
18441
d11ce424f09d Allow updating HotSpotMonitorValue.slot.
Josef Eisl <josef.eisl@jku.at>
parents: 18439
diff changeset
708 if (isVariableOrRegister(operand)) {
d11ce424f09d Allow updating HotSpotMonitorValue.slot.
Josef Eisl <josef.eisl@jku.at>
parents: 18439
diff changeset
709 int operandNum = operandNumber(operand);
d11ce424f09d Allow updating HotSpotMonitorValue.slot.
Josef Eisl <josef.eisl@jku.at>
parents: 18439
diff changeset
710 if (!liveKill.get(operandNum)) {
d11ce424f09d Allow updating HotSpotMonitorValue.slot.
Josef Eisl <josef.eisl@jku.at>
parents: 18439
diff changeset
711 liveGen.set(operandNum);
d11ce424f09d Allow updating HotSpotMonitorValue.slot.
Josef Eisl <josef.eisl@jku.at>
parents: 18439
diff changeset
712 Debug.log("liveGen in state for operand %d", operandNum);
d11ce424f09d Allow updating HotSpotMonitorValue.slot.
Josef Eisl <josef.eisl@jku.at>
parents: 18439
diff changeset
713 }
17294
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
714 }
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
715 };
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
716 ValueConsumer defConsumer = (operand, mode, flags) -> {
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
717 if (isVariable(operand)) {
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
718 int varNum = operandNumber(operand);
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
719 liveKill.set(varNum);
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
720 Debug.log("liveKill for operand %d", varNum);
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
721 if (block.getLoop() != null) {
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
722 intervalInLoop.setBit(varNum, block.getLoop().getIndex());
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
723 }
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
724 }
15887
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
725
17294
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
726 if (DetailedAsserts.getValue()) {
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
727 // fixed intervals are never live at block boundaries, so
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
728 // they need not be processed in live sets
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
729 // process them only in debug mode so that this can be checked
6d85dfeb6981 LSRA: replace anonymous ValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17293
diff changeset
730 verifyTemp(liveKill, operand);
15887
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
731 }
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
732 };
839ea165f816 LinearScan: Small cleanup.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 15886
diff changeset
733
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
734 // 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
735 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
736 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
737
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
738 try (Indent indent2 = Debug.logAndIndent("handle op %d", op.id())) {
16801
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
739 op.visitEachInput(useConsumer);
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
740 op.visitEachAlive(useConsumer);
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
741 // 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
742 // information generation
16801
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
743 op.visitEachState(stateConsumer);
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
744 op.visitEachTemp(defConsumer);
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
745 op.visitEachOutput(defConsumer);
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
746 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
747 } // end of instruction iteration
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
748
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
749 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
750 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
751 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
752 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
753 blockSets.liveOut = new BitSet(liveSize);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
754
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
755 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
756 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
757
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
758 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
759 } // end of block iteration
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
760 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
761
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
762 private void verifyTemp(BitSet liveKill, Value operand) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
763 // 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
764 // they need not be processed in live sets
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
765 // 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
766 if (isRegister(operand)) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
767 if (isProcessed(operand)) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
768 liveKill.set(operandNumber(operand));
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
769 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
770 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
771 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
772
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
773 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
774 // 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
775 // they need not be processed in live sets.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
776 // 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
777 // the entry block may have incoming
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
778 // values in registers, which is ok.
14145
4ff08c0366ae Encapsulate LIR class fields.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 14142
diff changeset
779 if (isRegister(operand) && block != ir.getControlFlowGraph().getStartBlock()) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
780 if (isProcessed(operand)) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
781 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
782 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
783 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
784 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
785
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
786 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
787 * 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
788 * {@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
789 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
790 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
791 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
792 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
793 boolean changeOccurred;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
794 boolean changeOccurredInBlock;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
795 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
796 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
797
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
798 // 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
799 // 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
800 do {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
801 changeOccurred = false;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
802
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
803 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
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 // 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
806 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
807 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
808 BlockData blockSets = blockData.get(block);
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 changeOccurredInBlock = false;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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 // 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
813 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
814 if (n > 0) {
15850
9ce2ca72efef small cleanup in LinearScan
Lukas Stadler <lukas.stadler@oracle.com>
parents: 15534
diff changeset
815 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
816 // 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
817 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
818 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
819 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
820 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
821 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
822
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
823 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
824 // 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
825 // 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
826 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
827 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
828 liveOut = temp;
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 changeOccurred = true;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
831 changeOccurredInBlock = true;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
832 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
833 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
834
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
835 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
836 // 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
837 // !liveKill(block))
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
838 // 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
839 // 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
840 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
841 liveIn.clear();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
842 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
843 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
844 liveIn.or(blockSets.liveGen);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
845
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
846 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
847 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
848 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
849 iterationCount++;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
850
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
851 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
852 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
853 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
854 }
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
855 } while (changeOccurred);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
856
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
857 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
858 verifyLiveness();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
859 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
860
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
861 // 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
862 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
863 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
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 reportFailure(numBlocks);
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
866 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
867 // 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
868 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
869 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
870 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
871 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
872
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
873 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
874 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
875 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
876
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
877 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
878 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
879 for (int operandNum = startBlockLiveIn.nextSetBit(0); operandNum >= 0; operandNum = startBlockLiveIn.nextSetBit(operandNum + 1)) {
17070
6e45ae59781c Let linear scan DetailedAsserts deal with missing intervals
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 16801
diff changeset
880 Interval interval = intervalFor(operandNum);
6e45ae59781c Let linear scan DetailedAsserts deal with missing intervals
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 16801
diff changeset
881 if (interval != null) {
6e45ae59781c Let linear scan DetailedAsserts deal with missing intervals
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 16801
diff changeset
882 Value operand = interval.operand;
19164
b215b88e215f Introduce LIRGenerationDebugContext.
Josef Eisl <josef.eisl@jku.at>
parents: 19163
diff changeset
883 Debug.log("var %d; operand=%s; node=%s", operandNum, operand, getSourceForOperandFromDebugContext(operand));
17070
6e45ae59781c Let linear scan DetailedAsserts deal with missing intervals
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 16801
diff changeset
884 } else {
6e45ae59781c Let linear scan DetailedAsserts deal with missing intervals
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 16801
diff changeset
885 Debug.log("var %d; missing operand", operandNum);
6e45ae59781c Let linear scan DetailedAsserts deal with missing intervals
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 16801
diff changeset
886 }
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
887 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
888 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
889
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
890 // 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
891 for (int operandNum = startBlockLiveIn.nextSetBit(0); operandNum >= 0; operandNum = startBlockLiveIn.nextSetBit(operandNum + 1)) {
17070
6e45ae59781c Let linear scan DetailedAsserts deal with missing intervals
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 16801
diff changeset
892 Interval interval = intervalFor(operandNum);
6e45ae59781c Let linear scan DetailedAsserts deal with missing intervals
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 16801
diff changeset
893 Value operand = null;
19164
b215b88e215f Introduce LIRGenerationDebugContext.
Josef Eisl <josef.eisl@jku.at>
parents: 19163
diff changeset
894 Object valueForOperandFromDebugContext = null;
17070
6e45ae59781c Let linear scan DetailedAsserts deal with missing intervals
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 16801
diff changeset
895 if (interval != null) {
6e45ae59781c Let linear scan DetailedAsserts deal with missing intervals
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 16801
diff changeset
896 operand = interval.operand;
19164
b215b88e215f Introduce LIRGenerationDebugContext.
Josef Eisl <josef.eisl@jku.at>
parents: 19163
diff changeset
897 valueForOperandFromDebugContext = getSourceForOperandFromDebugContext(operand);
17070
6e45ae59781c Let linear scan DetailedAsserts deal with missing intervals
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 16801
diff changeset
898 }
6e45ae59781c Let linear scan DetailedAsserts deal with missing intervals
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 16801
diff changeset
899 try (Indent indent2 = Debug.logAndIndent("---- Detailed information for var %d; operand=%s; node=%s ----", operandNum, operand, valueForOperandFromDebugContext)) {
14109
85969b1aba78 Use a forceLog scope for LinearScan.reportFailure. Remove @SuppressWarnings on DebugScope.scope
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 14070
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 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
902 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
903 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
904 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
905 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
906 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
907 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
908 try (Indent indent4 = Debug.logAndIndent("%d: %s", ins.id(), ins)) {
17292
4c31d6e44c18 LSRA: replace anonymous ValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17291
diff changeset
909 ins.forEachState((liveStateOperand, mode, flags) -> {
4c31d6e44c18 LSRA: replace anonymous ValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17291
diff changeset
910 Debug.log("operand=%s", liveStateOperand);
4c31d6e44c18 LSRA: replace anonymous ValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17291
diff changeset
911 return liveStateOperand;
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
912 });
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 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
915 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
916 }
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).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
918 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
919 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
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 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
922 }
14109
85969b1aba78 Use a forceLog scope for LinearScan.reportFailure. Remove @SuppressWarnings on DebugScope.scope
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 14070
diff changeset
923 }
85969b1aba78 Use a forceLog scope for LinearScan.reportFailure. Remove @SuppressWarnings on DebugScope.scope
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 14070
diff changeset
924 }
85969b1aba78 Use a forceLog scope for LinearScan.reportFailure. Remove @SuppressWarnings on DebugScope.scope
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 14070
diff changeset
925 }
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
926
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
927 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
928
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
929 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
930 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
931 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
932 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
933 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
934 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
935 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
936 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
937 } else {
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
938 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
939 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
940 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
941 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
942 }
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 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
945 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
946 Debug.log("B%d", block.getId());
12569
1c8d5a0891b5 improved error reporting in LSRA
Doug Simon <doug.simon@oracle.com>
parents: 11537
diff changeset
947 }
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
948 }
12569
1c8d5a0891b5 improved error reporting in LSRA
Doug Simon <doug.simon@oracle.com>
parents: 11537
diff changeset
949 }
1c8d5a0891b5 improved error reporting in LSRA
Doug Simon <doug.simon@oracle.com>
parents: 11537
diff changeset
950 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
951 }
17211
1ac6b4879443 Enforce catch-blocks for Debug.Scopes with context objects.
Josef Eisl <josef.eisl@jku.at>
parents: 17195
diff changeset
952 } catch (Throwable e) {
1ac6b4879443 Enforce catch-blocks for Debug.Scopes with context objects.
Josef Eisl <josef.eisl@jku.at>
parents: 17195
diff changeset
953 throw Debug.handle(e);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
954 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
955 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
956
7501
799dd373fcb6 Remove caching of sorted blocks in LSRA.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 7499
diff changeset
957 private void verifyLiveness() {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
958 // 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
959 // (live set must be empty at fixed intervals)
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
960 for (AbstractBlock<?> block : sortedBlocks) {
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
961 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
962 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
963 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
964 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
965 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
966 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
967 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
968
16094
c0b8d395368b Introduce LIRKind to accurately track oop references in backend.
Roland Schatz <roland.schatz@oracle.com>
parents: 15927
diff changeset
969 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
970 if (!isProcessed(operand)) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
971 return;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
972 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
973
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
974 Interval interval = getOrCreateInterval(operand);
16118
5cbaad0b7387 Verify usage of equals method in LIRKind.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
975 if (!kind.equals(LIRKind.Illegal)) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
976 interval.setKind(kind);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
977 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
978
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
979 interval.addRange(from, to);
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 // Register use position at even instruction id.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
982 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
983
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
984 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
985 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
986
16094
c0b8d395368b Introduce LIRKind to accurately track oop references in backend.
Roland Schatz <roland.schatz@oracle.com>
parents: 15927
diff changeset
987 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
988 if (!isProcessed(operand)) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
989 return;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
990 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
991
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
992 Interval interval = getOrCreateInterval(operand);
16118
5cbaad0b7387 Verify usage of equals method in LIRKind.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
993 if (!kind.equals(LIRKind.Illegal)) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
994 interval.setKind(kind);
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
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
997 interval.addRange(tempPos, tempPos + 1);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
998 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
999 interval.addMaterializationValue(null);
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1000
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1001 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
1002 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1003
5539
bc647d8b0080 Renaming RiValue => Value.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5536
diff changeset
1004 boolean isProcessed(Value operand) {
5552
69a8969dbf40 Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5547
diff changeset
1005 return !isRegister(operand) || attributes(asRegister(operand)).isAllocatable();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1006 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1007
16094
c0b8d395368b Introduce LIRKind to accurately track oop references in backend.
Roland Schatz <roland.schatz@oracle.com>
parents: 15927
diff changeset
1008 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
1009 if (!isProcessed(operand)) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1010 return;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1011 }
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1012 int defPos = op.id();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1013
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1014 Interval interval = getOrCreateInterval(operand);
16118
5cbaad0b7387 Verify usage of equals method in LIRKind.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
1015 if (!kind.equals(LIRKind.Illegal)) {
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1016 interval.setKind(kind);
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1017 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1018
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1019 Range r = interval.first();
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1020 if (r.from <= defPos) {
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1021 // 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
1022 // 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
1023 r.from = defPos;
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1024 interval.addUsePos(defPos, registerPriority);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1025
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1026 } else {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1027 // Dead value - make vacuous interval
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1028 // also add register priority for dead intervals
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1029 interval.addRange(defPos, defPos + 1);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1030 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
1031 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
1032 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1033
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1034 changeSpillDefinitionPos(interval, defPos);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1035 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
1036 // detection of method-parameters and roundfp-results
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1037 interval.setSpillState(SpillState.StartInMemory);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1038 }
14070
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
1039 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
1040
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1041 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
1042 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1043
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1044 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1045 * 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
1046 */
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
1047 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
1048 if (op instanceof MoveOp) {
df5547057954 Remove LIROpcode and use non-anonymous subclasses of LIRInstruction
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4265
diff changeset
1049 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
1050 if (optimizeMethodArgument(move.getInput())) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1051 return RegisterPriority.None;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1052 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1053 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1054
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1055 // all other operands require a register
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1056 return RegisterPriority.MustHaveRegister;
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 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
1060 * 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
1061 * register.
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1062 */
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
1063 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
1064 if (flags.contains(OperandFlag.STACK)) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1065 return RegisterPriority.ShouldHaveRegister;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1066 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1067 // all other operands require a register
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1068 return RegisterPriority.MustHaveRegister;
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
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
1071 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
1072 /*
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
1073 * 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
1074 * 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
1075 */
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
1076 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
1077 }
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
1078
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1079 /**
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
1080 * 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
1081 * 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
1082 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1083 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
1084 if (op instanceof MoveOp) {
df5547057954 Remove LIROpcode and use non-anonymous subclasses of LIRInstruction
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4265
diff changeset
1085 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
1086 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
1087 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
1088 if (DetailedAsserts.getValue()) {
4323
df5547057954 Remove LIROpcode and use non-anonymous subclasses of LIRInstruction
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4265
diff changeset
1089 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
1090 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
1091 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
1092
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
1093 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
1094 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1095
4323
df5547057954 Remove LIROpcode and use non-anonymous subclasses of LIRInstruction
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4265
diff changeset
1096 Interval interval = intervalFor(move.getResult());
4213
e4cfa571d8c4 Do not emit stack-to-stack moves.
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4207
diff changeset
1097 interval.setSpillSlot(slot);
e4cfa571d8c4 Do not emit stack-to-stack moves.
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4207
diff changeset
1098 interval.assignLocation(slot);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1099 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1100 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1101 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1102
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1103 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
1104 if (flags.contains(OperandFlag.HINT) && isVariableOrRegister(targetValue)) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1105
17292
4c31d6e44c18 LSRA: replace anonymous ValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17291
diff changeset
1106 op.forEachRegisterHint(targetValue, mode, (registerHint, valueMode, valueFlags) -> {
4c31d6e44c18 LSRA: replace anonymous ValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17291
diff changeset
1107 if (isVariableOrRegister(registerHint)) {
4c31d6e44c18 LSRA: replace anonymous ValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17291
diff changeset
1108 Interval from = getOrCreateInterval((AllocatableValue) registerHint);
4c31d6e44c18 LSRA: replace anonymous ValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17291
diff changeset
1109 Interval to = getOrCreateInterval((AllocatableValue) targetValue);
8220
2c5df42999dd Fix hinting in register allocator.
Roland Schatz <roland.schatz@oracle.com>
parents: 7648
diff changeset
1110
17292
4c31d6e44c18 LSRA: replace anonymous ValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17291
diff changeset
1111 /* hints always point from def to use */
4c31d6e44c18 LSRA: replace anonymous ValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17291
diff changeset
1112 if (hintAtDef) {
4c31d6e44c18 LSRA: replace anonymous ValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17291
diff changeset
1113 to.setLocationHint(from);
4c31d6e44c18 LSRA: replace anonymous ValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17291
diff changeset
1114 } else {
4c31d6e44c18 LSRA: replace anonymous ValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17291
diff changeset
1115 from.setLocationHint(to);
4c31d6e44c18 LSRA: replace anonymous ValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17291
diff changeset
1116 }
4c31d6e44c18 LSRA: replace anonymous ValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17291
diff changeset
1117 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
1118
17292
4c31d6e44c18 LSRA: replace anonymous ValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17291
diff changeset
1119 return registerHint;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1120 }
17292
4c31d6e44c18 LSRA: replace anonymous ValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17291
diff changeset
1121 return null;
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
1122 });
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1123 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1124 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1125
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1126 void buildIntervals() {
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1127
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1128 try (Indent indent = Debug.logAndIndent("build intervals")) {
17293
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1129 InstructionValueConsumer outputConsumer = (op, operand, mode, flags) -> {
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1130 if (isVariableOrRegister(operand)) {
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1131 addDef((AllocatableValue) operand, op, registerPriorityOfOutputOperand(op), operand.getLIRKind());
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1132 addRegisterHint(op, operand, mode, flags, true);
16138
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1133 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1134 };
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1135
17293
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1136 InstructionValueConsumer tempConsumer = (op, operand, mode, flags) -> {
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1137 if (isVariableOrRegister(operand)) {
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1138 addTemp((AllocatableValue) operand, op.id(), RegisterPriority.MustHaveRegister, operand.getLIRKind());
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1139 addRegisterHint(op, operand, mode, flags, false);
16138
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1140 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1141 };
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1142
17293
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1143 InstructionValueConsumer aliveConsumer = (op, operand, mode, flags) -> {
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1144 if (isVariableOrRegister(operand)) {
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1145 RegisterPriority p = registerPriorityOfInputOperand(flags);
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1146 int opId = op.id();
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1147 int blockFrom = getFirstLirInstructionId((blockForId(opId)));
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1148 addUse((AllocatableValue) operand, blockFrom, opId + 1, p, operand.getLIRKind());
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1149 addRegisterHint(op, operand, mode, flags, false);
16138
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1150 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1151 };
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1152
17293
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1153 InstructionValueConsumer inputConsumer = (op, operand, mode, flags) -> {
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1154 if (isVariableOrRegister(operand)) {
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1155 int opId = op.id();
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1156 int blockFrom = getFirstLirInstructionId((blockForId(opId)));
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1157 RegisterPriority p = registerPriorityOfInputOperand(flags);
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1158 addUse((AllocatableValue) operand, blockFrom, opId, p, operand.getLIRKind());
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1159 addRegisterHint(op, operand, mode, flags, false);
16138
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1160 }
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
17293
6855e4c325d0 LSRA: replace anonymous InstructionValueConsumers with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17292
diff changeset
1163 InstructionValueConsumer stateProc = (op, operand, mode, flags) -> {
18441
d11ce424f09d Allow updating HotSpotMonitorValue.slot.
Josef Eisl <josef.eisl@jku.at>
parents: 18439
diff changeset
1164 if (isVariableOrRegister(operand)) {
d11ce424f09d Allow updating HotSpotMonitorValue.slot.
Josef Eisl <josef.eisl@jku.at>
parents: 18439
diff changeset
1165 int opId = op.id();
d11ce424f09d Allow updating HotSpotMonitorValue.slot.
Josef Eisl <josef.eisl@jku.at>
parents: 18439
diff changeset
1166 int blockFrom = getFirstLirInstructionId((blockForId(opId)));
d11ce424f09d Allow updating HotSpotMonitorValue.slot.
Josef Eisl <josef.eisl@jku.at>
parents: 18439
diff changeset
1167 addUse((AllocatableValue) operand, blockFrom, opId + 1, RegisterPriority.None, operand.getLIRKind());
d11ce424f09d Allow updating HotSpotMonitorValue.slot.
Josef Eisl <josef.eisl@jku.at>
parents: 18439
diff changeset
1168 }
16138
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1169 };
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1170
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1171 // create a list with all caller-save registers (cpu, fpu, xmm)
18150
22f2e42923de Use FrameMapBuilder in LinearScan (except for location marking).
Josef Eisl <josef.eisl@jku.at>
parents: 18123
diff changeset
1172 Register[] callerSaveRegs = frameMapBuilder.getRegisterConfig().getCallerSaveRegisters();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1173
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1174 // 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
1175 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
1176
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1177 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
1178 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
1179
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1180 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
1181 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
1182 int blockTo = getLastLirInstructionId(block);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1183
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1184 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
1185 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
1186
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1187 // 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
1188 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
1189 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
1190 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
1191 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
1192 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
1193
16094
c0b8d395368b Introduce LIRKind to accurately track oop references in backend.
Roland Schatz <roland.schatz@oracle.com>
parents: 15927
diff changeset
1194 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
1195
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1196 // 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
1197 // 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
1198 // 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
1199 // have an invalid loop index.
15534
4bd6ad45ee0a Encapsulate members of Loop.
Josef Eisl <josef.eisl@jku.at>
parents: 15193
diff changeset
1200 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
1201 intervalFor(operandNum).addUsePos(blockTo + 1, RegisterPriority.LiveAtLoopEnd);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1202 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1203 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1204
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1205 // 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
1206 // 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
1207 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
1208 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
1209 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
1210
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1211 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
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 // 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
1214 // 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
1215 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
1216 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
1217 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
1218 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
1219 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1220 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1221 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
1222 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1223
16801
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
1224 op.visitEachOutput(outputConsumer);
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
1225 op.visitEachTemp(tempConsumer);
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
1226 op.visitEachAlive(aliveConsumer);
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
1227 op.visitEachInput(inputConsumer);
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
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 // 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
1230 // 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
1231 // 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
1232 // 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
1233 // the call otherwise)
16801
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
1234 op.visitEachState(stateProc);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1235
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1236 // 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
1237 handleMethodArguments(op);
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1238
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1239 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1240
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1241 } // 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
1242 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1243 } // 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
1244
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1245 // 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
1246 // 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
1247 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
1248 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
1249 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
1250 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1251 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1252 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1253 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1254
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1255 // * Phase 5: actual register allocation
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1256
4142
bc8527f3071c Adjust code base to new level of warnings.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3733
diff changeset
1257 private static boolean isSorted(Interval[] intervals) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1258 int from = -1;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1259 for (Interval interval : intervals) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1260 assert interval != null;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1261 assert from <= interval.from();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1262 from = interval.from();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1263 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1264 return true;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1265 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1266
4142
bc8527f3071c Adjust code base to new level of warnings.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3733
diff changeset
1267 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
1268 Interval newFirst = first;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1269 if (prev != null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1270 prev.next = interval;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1271 } else {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1272 newFirst = interval;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1273 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1274 return newFirst;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1275 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1276
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1277 Interval.Pair createUnhandledLists(IntervalPredicate isList1, IntervalPredicate isList2) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1278 assert isSorted(sortedIntervals) : "interval list is not sorted";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1279
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1280 Interval list1 = Interval.EndMarker;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1281 Interval list2 = Interval.EndMarker;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1282
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1283 Interval list1Prev = null;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1284 Interval list2Prev = null;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1285 Interval v;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1286
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1287 int n = sortedIntervals.length;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1288 for (int i = 0; i < n; i++) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1289 v = sortedIntervals[i];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1290 if (v == null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1291 continue;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1292 }
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 if (isList1.apply(v)) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1295 list1 = addToList(list1, list1Prev, v);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1296 list1Prev = v;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1297 } else if (isList2 == null || isList2.apply(v)) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1298 list2 = addToList(list2, list2Prev, v);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1299 list2Prev = v;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1300 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1301 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1302
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1303 if (list1Prev != null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1304 list1Prev.next = Interval.EndMarker;
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 if (list2Prev != null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1307 list2Prev.next = Interval.EndMarker;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1308 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1309
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1310 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
1311 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
1312
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1313 return new Interval.Pair(list1, list2);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1314 }
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 void sortIntervalsBeforeAllocation() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1317 int sortedLen = 0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1318 for (Interval interval : intervals) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1319 if (interval != null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1320 sortedLen++;
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 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1323
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1324 Interval[] sortedList = new Interval[sortedLen];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1325 int sortedIdx = 0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1326 int sortedFromMax = -1;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1327
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1328 // 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
1329 // 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
1330 for (Interval interval : intervals) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1331 if (interval != null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1332 int from = interval.from();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1333
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1334 if (sortedFromMax <= from) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1335 sortedList[sortedIdx++] = interval;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1336 sortedFromMax = interval.from();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1337 } else {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1338 // 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
1339 // so this interval must be sorted in manually
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1340 int j;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1341 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
1342 sortedList[j + 1] = sortedList[j];
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 sortedList[j + 1] = interval;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1345 sortedIdx++;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1346 }
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 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1349 sortedIntervals = sortedList;
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 void sortIntervalsAfterAllocation() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1353 if (firstDerivedIntervalIndex == -1) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1354 // 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
1355 return;
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 Interval[] oldList = sortedIntervals;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1359 Interval[] newList = Arrays.copyOfRange(intervals, firstDerivedIntervalIndex, intervalsSize);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1360 int oldLen = oldList.length;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1361 int newLen = newList.length;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1362
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1363 // 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
1364 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
1365
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1366 // 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
1367 Interval[] combinedList = new Interval[oldLen + newLen];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1368 int oldIdx = 0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1369 int newIdx = 0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1370
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1371 while (oldIdx + newIdx < combinedList.length) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1372 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
1373 combinedList[oldIdx + newIdx] = oldList[oldIdx];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1374 oldIdx++;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1375 } else {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1376 combinedList[oldIdx + newIdx] = newList[newIdx];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1377 newIdx++;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1378 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1379 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1380
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1381 sortedIntervals = combinedList;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1382 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1383
19212
95a7954ea155 Add LinearScanPhase.
Josef Eisl <josef.eisl@jku.at>
parents: 19166
diff changeset
1384 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
1385 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
1386 Interval precoloredIntervals;
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1387 Interval notPrecoloredIntervals;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1388
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1389 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
1390 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
1391 notPrecoloredIntervals = result.second;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1392
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1393 // allocate cpu registers
15927
96229f219351 LSRA: add OptimizingLinearScanWalker.
Josef Eisl <josef.eisl@jku.at>
parents: 15920
diff changeset
1394 LinearScanWalker lsw;
96229f219351 LSRA: add OptimizingLinearScanWalker.
Josef Eisl <josef.eisl@jku.at>
parents: 15920
diff changeset
1395 if (OptimizingLinearScanWalker.Options.LSRAOptimization.getValue()) {
96229f219351 LSRA: add OptimizingLinearScanWalker.
Josef Eisl <josef.eisl@jku.at>
parents: 15920
diff changeset
1396 lsw = new OptimizingLinearScanWalker(this, precoloredIntervals, notPrecoloredIntervals);
96229f219351 LSRA: add OptimizingLinearScanWalker.
Josef Eisl <josef.eisl@jku.at>
parents: 15920
diff changeset
1397 } else {
96229f219351 LSRA: add OptimizingLinearScanWalker.
Josef Eisl <josef.eisl@jku.at>
parents: 15920
diff changeset
1398 lsw = new LinearScanWalker(this, precoloredIntervals, notPrecoloredIntervals);
96229f219351 LSRA: add OptimizingLinearScanWalker.
Josef Eisl <josef.eisl@jku.at>
parents: 15920
diff changeset
1399 }
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1400 lsw.walk();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1401 lsw.finishAllocation();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1402 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1403 }
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 // * Phase 6: resolve data flow
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1406 // (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
1407
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1408 // 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
1409 // instead of returning null
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1410 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
1411 Interval result = interval.getSplitChildAtOpId(opId, mode, this);
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 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
1414 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
1415 return result;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1416 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1417
5547
b6617d13ea44 Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5542
diff changeset
1418 throw new BailoutException("LinearScan: interval is null");
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1419 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1420
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
1421 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
1422 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
1423 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1424
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
1425 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
1426 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
1427 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1428
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
1429 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
1430 assert moveResolver.checkEmpty();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1431
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
1432 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
1433 BitSet liveAtEdge = blockData.get(toBlock).liveIn;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1434
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1435 // 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
1436 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
1437 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
1438 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
1439
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
1440 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
1441 Interval toInterval = intervalAtBlockBegin(toBlock, operandNum);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1442
9632
97db51025787 Value: use `equals()' instead of object equality
Bernhard Urban <bernhard.urban@jku.at>
parents: 9628
diff changeset
1443 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
1444 // need to insert move instruction
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1445 moveResolver.addMapping(fromInterval, toInterval);
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 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1448 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1449
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
1450 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
1451 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
1452 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
1453
14806
a8723f1ff542 LIR renamed setter and getter functions.
Josef Eisl <josef.eisl@jku.at>
parents: 14789
diff changeset
1454 List<LIRInstruction> instructions = ir.getLIRforBlock(fromBlock);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1455 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
1456 if (instr instanceof StandardOp.JumpOp) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1457 // 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
1458 moveResolver.setInsertPosition(instructions, instructions.size() - 1);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1459 } 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
1460 moveResolver.setInsertPosition(instructions, instructions.size());
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
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1463 } 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
1464 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
1465
9855
6898d8995866 converted more options from GraalOptions to new system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents: 9632
diff changeset
1466 if (DetailedAsserts.getValue()) {
14806
a8723f1ff542 LIR renamed setter and getter functions.
Josef Eisl <josef.eisl@jku.at>
parents: 14789
diff changeset
1467 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
1468
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1469 // 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
1470 // 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
1471 // 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
1472 // that all predecessors will be the same.
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
1473 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
1474 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
1475 }
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
14806
a8723f1ff542 LIR renamed setter and getter functions.
Josef Eisl <josef.eisl@jku.at>
parents: 14789
diff changeset
1478 moveResolver.setInsertPosition(ir.getLIRforBlock(toBlock), 1);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1479 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1480 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1481
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1482 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1483 * 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
1484 * have been split.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1485 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1486 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
1487 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
1488
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1489 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
1490 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
1491 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
1492 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
1493
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1494 for (AbstractBlock<?> block : sortedBlocks) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1495
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1496 // 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
1497 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
1498 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
1499 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
1500 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
1501
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1502 // 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
1503 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
1504 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
1505 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
1506
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1507 // 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
1508 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
1509 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
1510
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1511 blockCompleted.set(block.getLinearScanNumber());
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1512
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1513 // 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
1514 // 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
1515 // between)
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1516 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
1517 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
1518 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
1519 moveResolver.resolveAndAppendMoves();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1520 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1521 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1522 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1523 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1524 }
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
1525
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1526 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
1527 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
1528 alreadyResolved.clear();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1529 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
1530
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1531 for (AbstractBlock<?> toBlock : fromBlock.getSuccessors()) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1532
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1533 // 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
1534 // blocks)
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1535 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
1536 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
1537
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1538 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
1539
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1540 // 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
1541 // 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
1542 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
1543 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
1544 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
1545 moveResolver.resolveAndAppendMoves();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1546 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1547 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1548 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1549 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1550 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1551 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1552 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1553
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1554 // * Phase 7: assign register numbers back to LIR
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1555 // (includes computation of debug information and oop maps)
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1556
18425
b856446ff7e0 Introduce StackSlotValue and VirtualStackSlot.
Josef Eisl <josef.eisl@jku.at>
parents: 18420
diff changeset
1557 static StackSlotValue canonicalSpillOpr(Interval interval) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1558 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
1559 return interval.spillSlot();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1560 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1561
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1562 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1563 * 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
1564 *
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1565 * @param operand an LIR instruction operand
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1566 * @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
1567 * @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
1568 * @return the location assigned for the operand
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1569 */
5539
bc647d8b0080 Renaming RiValue => Value.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5536
diff changeset
1570 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
1571 Interval interval = intervalFor(operand);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1572 assert interval != null : "interval must exist";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1573
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1574 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
1575 if (DetailedAsserts.getValue()) {
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
1576 AbstractBlock<?> block = blockForId(opId);
7497
0f8c6dbf68be Code clean up and documentation for ComputeBlockOrder class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6582
diff changeset
1577 if (block.getSuccessorCount() <= 1 && opId == getLastLirInstructionId(block)) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1578 // 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
1579 // 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
1580 // would
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1581 // be incorrect.
14806
a8723f1ff542 LIR renamed setter and getter functions.
Josef Eisl <josef.eisl@jku.at>
parents: 14789
diff changeset
1582 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
1583 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
1584 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
1585 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
1586 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1587 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1588 }
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 // 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
1592 // so search the right interval here
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1593 interval = splitChildAtOpId(interval, opId, mode);
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
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1596 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
1597 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
1598 return interval.getMaterializedValue();
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1599 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1600 return interval.location();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1601 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1602
13377
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1603 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
1604 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
1605 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
1606
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1607 if (opId != -1) {
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1608 // 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
1609 // 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
1610 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
1611 }
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1612
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1613 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
1614 }
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1615
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1616 protected IntervalWalker initIntervalWalker(IntervalPredicate predicate) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1617 // setup lists of potential oops for walking
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1618 Interval oopIntervals;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1619 Interval nonOopIntervals;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1620
13340
9423a38d6437 added rematerialization of constants in LinearScan, but still disabled
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13339
diff changeset
1621 oopIntervals = createUnhandledLists(predicate, null).first;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1622
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1623 // 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
1624 // 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
1625 // 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
1626 nonOopIntervals = new Interval(Value.ILLEGAL, -1);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1627 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
1628
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1629 return new IntervalWalker(this, oopIntervals, nonOopIntervals);
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
5539
bc647d8b0080 Renaming RiValue => Value.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5536
diff changeset
1632 private boolean isCallerSave(Value operand) {
5552
69a8969dbf40 Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5547
diff changeset
1633 return attributes(asRegister(operand)).isCallerSave();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1634 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1635
17413
0a2e65e74a9c LRSA: minor clean ups around debugInfoProcedure().
Josef Eisl <josef.eisl@jku.at>
parents: 17298
diff changeset
1636 /**
0a2e65e74a9c LRSA: minor clean ups around debugInfoProcedure().
Josef Eisl <josef.eisl@jku.at>
parents: 17298
diff changeset
1637 * @param op
0a2e65e74a9c LRSA: minor clean ups around debugInfoProcedure().
Josef Eisl <josef.eisl@jku.at>
parents: 17298
diff changeset
1638 * @param operand
0a2e65e74a9c LRSA: minor clean ups around debugInfoProcedure().
Josef Eisl <josef.eisl@jku.at>
parents: 17298
diff changeset
1639 * @param valueMode
0a2e65e74a9c LRSA: minor clean ups around debugInfoProcedure().
Josef Eisl <josef.eisl@jku.at>
parents: 17298
diff changeset
1640 * @param flags
0a2e65e74a9c LRSA: minor clean ups around debugInfoProcedure().
Josef Eisl <josef.eisl@jku.at>
parents: 17298
diff changeset
1641 * @see InstructionValueProcedure#doValue(LIRInstruction, Value, OperandMode, EnumSet)
0a2e65e74a9c LRSA: minor clean ups around debugInfoProcedure().
Josef Eisl <josef.eisl@jku.at>
parents: 17298
diff changeset
1642 */
17298
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1643 private Value debugInfoProcedure(LIRInstruction op, Value operand, OperandMode valueMode, EnumSet<OperandFlag> flags) {
18610
6a6291c31657 Add LocationMarker.
Josef Eisl <josef.eisl@jku.at>
parents: 18512
diff changeset
1644 if (isVirtualStackSlot(operand)) {
6a6291c31657 Add LocationMarker.
Josef Eisl <josef.eisl@jku.at>
parents: 18512
diff changeset
1645 return operand;
6a6291c31657 Add LocationMarker.
Josef Eisl <josef.eisl@jku.at>
parents: 18512
diff changeset
1646 }
17298
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1647 int tempOpId = op.id();
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1648 OperandMode mode = OperandMode.USE;
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1649 AbstractBlock<?> block = blockForId(tempOpId);
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1650 if (block.getSuccessorCount() == 1 && tempOpId == getLastLirInstructionId(block)) {
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1651 // generating debug information for the last instruction of a block.
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1652 // if this instruction is a branch, spill moves are inserted before this branch
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1653 // and so the wrong operand would be returned (spill moves at block boundaries
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1654 // are not
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1655 // considered in the live ranges of intervals)
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1656 // Solution: use the first opId of the branch target block instead.
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1657 final LIRInstruction instr = ir.getLIRforBlock(block).get(ir.getLIRforBlock(block).size() - 1);
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1658 if (instr instanceof StandardOp.JumpOp) {
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1659 if (blockData.get(block).liveOut.get(operandNumber(operand))) {
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1660 tempOpId = getFirstLirInstructionId(block.getSuccessors().iterator().next());
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1661 mode = OperandMode.DEF;
16138
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1662 }
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1663 }
17298
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1664 }
17297
07d5cf34b3c5 Work around uninitialized variables problem with javac and lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17294
diff changeset
1665
17298
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1666 // Get current location of operand
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1667 // The operand must be live because debug information is considered when building
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1668 // the intervals
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1669 // if the interval is not live, colorLirOperand will cause an assert on failure
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1670 Value result = colorLirOperand((Variable) operand, tempOpId, mode);
18436
59e65d3aa2fc Use StackSlotValue where appropriate.
Josef Eisl <josef.eisl@jku.at>
parents: 18425
diff changeset
1671 assert !hasCall(tempOpId) || isStackSlotValue(result) || isConstant(result) || !isCallerSave(result) : "cannot have caller-save register operands at calls";
17298
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1672 return result;
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1673 }
16138
f315b1c0a590 Introduce InstructionValueProcedure.
Josef Eisl <josef.eisl@jku.at>
parents: 16118
diff changeset
1674
19019
56e6b5756886 LinearScan: remove support for markFrameLocations.
Josef Eisl <josef.eisl@jku.at>
parents: 18674
diff changeset
1675 private void computeDebugInfo(final LIRInstruction op, LIRFrameState info) {
17298
831e96d0777d Better workaround for the uninitialized variable issue.
Josef Eisl <josef.eisl@jku.at>
parents: 17297
diff changeset
1676 info.forEachState(op, this::debugInfoProcedure);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1677 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1678
19019
56e6b5756886 LinearScan: remove support for markFrameLocations.
Josef Eisl <josef.eisl@jku.at>
parents: 18674
diff changeset
1679 private void assignLocations(List<LIRInstruction> instructions) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1680 int numInst = instructions.size();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1681 boolean hasDead = false;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1682
17291
182062f9739d LSRA: replace anonymous InstructionValueProcedures with Lambdas.
Josef Eisl <josef.eisl@jku.at>
parents: 17285
diff changeset
1683 InstructionValueProcedure assignProc = (op, operand, mode, flags) -> isVariable(operand) ? colorLirOperand((Variable) operand, op.id(), mode) : operand;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1684 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
1685 final LIRInstruction op = instructions.get(j);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1686 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
1687 hasDead = true;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1688 continue;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1689 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1690
13377
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1691 // remove useless moves
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1692 MoveOp move = null;
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1693 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
1694 move = (MoveOp) op;
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1695 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
1696 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
1697 /*
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1698 * 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
1699 * 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
1700 * 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
1701 */
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1702 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
1703 hasDead = true;
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1704 continue;
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1705 }
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1706 }
40530019af02 enable rematerialization of constants in LinearScan, including a bug fix
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13376
diff changeset
1707
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
1708 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
1709 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
1710 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
1711 op.forEachOutput(assignProc);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1712
5733
141b15521a39 use annotated fields for operands of LIR instructions
Christian Wimmer <christian.wimmer@oracle.com>
parents: 5711
diff changeset
1713 // compute reference map and debug information
19019
56e6b5756886 LinearScan: remove support for markFrameLocations.
Josef Eisl <josef.eisl@jku.at>
parents: 18674
diff changeset
1714 op.forEachState((inst, state) -> computeDebugInfo(inst, state));
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1715
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1716 // 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
1717 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
1718 if (move.getInput().equals(move.getResult())) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1719 instructions.set(j, null);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1720 hasDead = true;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1721 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1722 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1723 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1724
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1725 if (hasDead) {
6321
9418ff4c9e7c Clean up ControlFlowOptimizer.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6317
diff changeset
1726 // Remove null values from the list.
9418ff4c9e7c Clean up ControlFlowOptimizer.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6317
diff changeset
1727 instructions.removeAll(Collections.singleton(null));
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1728 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1729 }
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 private void assignLocations() {
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
1732 try (Indent indent = Debug.logAndIndent("assign locations")) {
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
1733 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
1734 try (Indent indent2 = Debug.logAndIndent("assign locations in block B%d", block.getId())) {
19019
56e6b5756886 LinearScan: remove support for markFrameLocations.
Josef Eisl <josef.eisl@jku.at>
parents: 18674
diff changeset
1735 assignLocations(ir.getLIRforBlock(block));
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
1736 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1737 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1738 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1739 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1740
19212
95a7954ea155 Add LinearScanPhase.
Josef Eisl <josef.eisl@jku.at>
parents: 19166
diff changeset
1741 void allocate() {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1742
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
1743 /*
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1744 * 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
1745 */
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1746 try (Indent indent = Debug.logAndIndent("LinearScan allocate")) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1747
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1748 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
1749 numberInstructions();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1750 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
1751 computeLocalLiveSets();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1752 computeGlobalLiveSets();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1753 buildIntervals();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1754 sortIntervalsBeforeAllocation();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1755 } 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
1756 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
1757 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1758
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1759 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
1760 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
1761 allocateRegisters();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1762 } 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
1763 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
1764 }
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
1765
16362
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
1766 if (Options.LSRAOptimizeSpillPosition.getValue()) {
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
1767 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
1768 optimizeSpillPosition();
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
1769 } catch (Throwable e) {
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
1770 throw Debug.handle(e);
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
1771 }
16357
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1772 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1773
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1774 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
1775 resolveDataFlow();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1776 } 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
1777 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
1778 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1779
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1780 try (Scope s = Debug.scope("DebugInfo")) {
18420
b7089e3d8457 Print LIR after FrameMap building.
Josef Eisl <josef.eisl@jku.at>
parents: 18187
diff changeset
1781 printIntervals("After register allocation");
b7089e3d8457 Print LIR after FrameMap building.
Josef Eisl <josef.eisl@jku.at>
parents: 18187
diff changeset
1782 printLir("After register allocation", true);
b7089e3d8457 Print LIR after FrameMap building.
Josef Eisl <josef.eisl@jku.at>
parents: 18187
diff changeset
1783
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1784 sortIntervalsAfterAllocation();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1785
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1786 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
1787 verify();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1788 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1789
16372
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1790 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
1791 eliminateSpillMoves();
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1792 } catch (Throwable e) {
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1793 throw Debug.handle(e);
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1794 }
17195
41a75081678c Print LIR after move elimination.
Josef Eisl <josef.eisl@jku.at>
parents: 17126
diff changeset
1795 printLir("After spill move elimination", true);
16372
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1796
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1797 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
1798 assignLocations();
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1799 } catch (Throwable e) {
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1800 throw Debug.handle(e);
73d7935be896 LSRA: add debug scope for eliminateSpillMoves() and assignLocations().
Josef Eisl <josef.eisl@jku.at>
parents: 16371
diff changeset
1801 }
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1802
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1803 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
1804 verifyIntervals();
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1805 }
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1806 } 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
1807 throw Debug.handle(e);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1808 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1809
14871
667710021ea1 removed methods in Indent that are redundant with those in Debug
Doug Simon <doug.simon@oracle.com>
parents: 14841
diff changeset
1810 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
1811 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1812 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1813
16357
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1814 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
1815 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
1816
16362
b100bd079fff LSRA spill optimization: add -G:+LSRAOptimizeSpillPosition option (default: enabled).
Josef Eisl <josef.eisl@jku.at>
parents: 16361
diff changeset
1817 private void optimizeSpillPosition() {
16378
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1818 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
1819 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
1820 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
1821 AbstractBlock<?> defBlock = blockForId(interval.spillDefinitionPos());
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1822 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
1823 Interval firstSpillChild = null;
16357
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1824 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
1825 for (Interval splitChild : interval.getSplitChildren()) {
18436
59e65d3aa2fc Use StackSlotValue where appropriate.
Josef Eisl <josef.eisl@jku.at>
parents: 18425
diff changeset
1826 if (isStackSlotValue(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
1827 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
1828 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
1829 } 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
1830 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
1831 }
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1832 // 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
1833 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
1834 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
1835 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
1836 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
1837 spillBlock = splitBlock;
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
1838 } else {
16506
505c17ed39da LSRA spill optimization: use AbstractControlFlowGraph.commonDominator.
Josef Eisl <josef.eisl@jku.at>
parents: 16505
diff changeset
1839 spillBlock = commonDominator(spillBlock, splitBlock);
16373
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
1840 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
1841 }
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
1842 }
16357
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1843 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1844 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1845 }
16360
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1846 if (spillBlock == null) {
16358
9371b9c246ca LSRA spill optimization: spill at earliest dominator.
Josef Eisl <josef.eisl@jku.at>
parents: 16357
diff changeset
1847 // no spill interval
9371b9c246ca LSRA spill optimization: spill at earliest dominator.
Josef Eisl <josef.eisl@jku.at>
parents: 16357
diff changeset
1848 interval.setSpillState(SpillState.StoreAtDefinition);
9371b9c246ca LSRA spill optimization: spill at earliest dominator.
Josef Eisl <josef.eisl@jku.at>
parents: 16357
diff changeset
1849 } else {
16360
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1850 // move out of loops
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1851 if (defBlock.getLoopDepth() < spillBlock.getLoopDepth()) {
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1852 spillBlock = moveSpillOutOfLoop(defBlock, spillBlock);
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1853 }
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1854
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
1855 /*
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1856 * 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
1857 * 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
1858 */
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1859 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
1860 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
1861 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
1862 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
1863 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
1864 }
f8ba57019a5d LSRA spill optimization: move spill position to the dominator if at spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16368
diff changeset
1865
16360
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1866 if (!defBlock.equals(spillBlock)) {
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1867 assert dominates(defBlock, spillBlock);
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1868 betterSpillPos.increment();
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1869 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
1870
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
1871 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
1872 // 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
1873 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
1874 } else {
16378
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1875 LIRInsertionBuffer insertionBuffer = insertionBuffers[spillBlock.getId()];
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1876 if (insertionBuffer == null) {
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1877 insertionBuffer = new LIRInsertionBuffer();
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1878 insertionBuffers[spillBlock.getId()] = insertionBuffer;
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1879 insertionBuffer.init(ir.getLIRforBlock(spillBlock));
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1880 }
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1881 int spillOpId = getFirstLirInstructionId(spillBlock);
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1882 // insert spill move
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1883 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
1884 AllocatableValue toLocation = canonicalSpillOpr(interval);
19549
1cf73c50e3dc Move SpillMoveFactory from LIR to LIRGeneratorTool.
Josef Eisl <josef.eisl@jku.at>
parents: 19212
diff changeset
1885 LIRInstruction move = 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
1886 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
1887 /*
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1888 * 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
1889 * at position 1.
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1890 */
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1891 insertionBuffer.append(1, move);
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1892
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
1893 betterSpillPosWithLowerProbability.increment();
16378
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1894 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
1895 }
16360
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1896 } else {
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1897 // definition is the best choice
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1898 interval.setSpillState(SpillState.StoreAtDefinition);
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1899 }
16357
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1900 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1901 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1902 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1903 }
16378
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1904 for (LIRInsertionBuffer insertionBuffer : insertionBuffers) {
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1905 if (insertionBuffer != null) {
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1906 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
1907 insertionBuffer.finish();
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1908 }
d075b97fbd31 LSRA spill optimization: insert spill moves eagerly.
Josef Eisl <josef.eisl@jku.at>
parents: 16377
diff changeset
1909 }
16357
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1910 }
a07492ccaf52 LSRA spill optimization: calculate optimized spill position.
Josef Eisl <josef.eisl@jku.at>
parents: 16355
diff changeset
1911
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
1912 /**
16376
ef21879c0c8f LSRA spill optimization: rename UseBlockIterator to IntervalBlockIterator.
Josef Eisl <josef.eisl@jku.at>
parents: 16375
diff changeset
1913 * 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
1914 */
16376
ef21879c0c8f LSRA spill optimization: rename UseBlockIterator to IntervalBlockIterator.
Josef Eisl <josef.eisl@jku.at>
parents: 16375
diff changeset
1915 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
1916
16373
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
1917 Range range;
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
1918 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
1919
16376
ef21879c0c8f LSRA spill optimization: rename UseBlockIterator to IntervalBlockIterator.
Josef Eisl <josef.eisl@jku.at>
parents: 16375
diff changeset
1920 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
1921 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
1922 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
1923 }
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
1924
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
1925 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
1926 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
1927 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
1928 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
1929 block = sortedBlocks.get(nextBlockIndex);
16375
ff14306337f2 LSRA spill optimization: fix UseBlockIterator.
Josef Eisl <josef.eisl@jku.at>
parents: 16374
diff changeset
1930 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
1931 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
1932 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
1933 block = null;
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
1934 } else {
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
1935 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
1936 }
16370
3324ab9fe71a LSRA spill optimization: iterate all ranges of spill interval.
Josef Eisl <josef.eisl@jku.at>
parents: 16369
diff changeset
1937 }
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
1938 } else {
16373
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
1939 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
1940 }
16373
74e93f5ba4f3 LSRA spill optimization: consider all spill blocks not only use positions.
Josef Eisl <josef.eisl@jku.at>
parents: 16372
diff changeset
1941 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
1942 }
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
1943
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
1944 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
1945 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
1946 }
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
1947 }
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
1948
16376
ef21879c0c8f LSRA spill optimization: rename UseBlockIterator to IntervalBlockIterator.
Josef Eisl <josef.eisl@jku.at>
parents: 16375
diff changeset
1949 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
1950 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
1951 public Iterator<AbstractBlock<?>> iterator() {
16376
ef21879c0c8f LSRA spill optimization: rename UseBlockIterator to IntervalBlockIterator.
Josef Eisl <josef.eisl@jku.at>
parents: 16375
diff changeset
1952 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
1953 }
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
1954 };
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
1955 }
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
1956
16360
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1957 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
1958 int defLoopDepth = defBlock.getLoopDepth();
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1959 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
1960 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
1961 if (block.getLoopDepth() <= defLoopDepth) {
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1962 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
1963 return block;
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1964 }
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1965 }
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1966 return defBlock;
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1967 }
ec54fc47ba5d LSRA spill optimization: move spill out of loops.
Josef Eisl <josef.eisl@jku.at>
parents: 16359
diff changeset
1968
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1969 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
1970 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
1971 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
1972 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
1973 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
1974 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
1975 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
1976 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1977
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
1978 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
1979 for (int i = 0; i < blockCount(); i++) {
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
1980 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
1981 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
1982 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1983 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1984 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1985 }
4353
043bec543161 More work on debug framework. Removed concept of GraalContext.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 4352
diff changeset
1986 Debug.dump(Arrays.copyOf(intervals, intervalsSize), label);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1987 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1988
7556
630ea5001e33 Modified formatter settings to not insert line break after annotation on parameters.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 7530
diff changeset
1989 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
1990 Debug.dump(ir, label);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1991 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1992
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1993 boolean verify() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1994 // (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
1995 verifyIntervals();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1996
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1997 verifyRegisters();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1998
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
1999 Debug.log("no errors found");
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2000
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2001 return true;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2002 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2003
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2004 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
2005 // 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
2006 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
2007 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
2008 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
2009 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2010 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2011
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2012 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
2013 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
2014 int len = intervalsSize;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2015
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
2016 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
2017 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
2018 if (i1 == null) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2019 continue;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2020 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2021
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
2022 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
2023
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2024 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
2025 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
2026 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
2027 throw new GraalInternalError("");
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2028 }
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
2029
16118
5cbaad0b7387 Verify usage of equals method in LIRKind.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
2030 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
2031 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
2032 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
2033 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
2034 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2035
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2036 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
2037 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
2038 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
2039 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
2040 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2041
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2042 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
2043 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
2044 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
2045 throw new GraalInternalError("");
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2046 }
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
2047
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2048 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
2049 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
2050 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
2051 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
2052 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
2053 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2054 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2055
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2056 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
2057 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
2058 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
2059 continue;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2060 }
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
2061
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2062 // 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
2063 // . 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
2064 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
2065 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
2066 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2067 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
2068 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
2069 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2070 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
2071 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
2072 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
2073 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
2074 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
2075 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
2076 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
2077 }
7c694e3e97e5 remove remaining old style TTY debug logging in LinearScan and remove TraceLinearScan option
Erik Eckstein <erik.eckstein@oracle.com>
parents: 13377
diff changeset
2078 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
2079 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2080 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2081 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2082 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2083 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2084
17285
3a834111a632 Make [Instruction]ValueProcedure and [Instruction]ValueConsumer a FunctionalInterface.
Josef Eisl <josef.eisl@jku.at>
parents: 17284
diff changeset
2085 class CheckConsumer implements ValueConsumer {
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7512
diff changeset
2086
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2087 boolean ok;
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2088 Interval curInterval;
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2089
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2090 @Override
17284
d21962ea9617 Remove ValueConsumer.visitValue(Value).
Josef Eisl <josef.eisl@jku.at>
parents: 17283
diff changeset
2091 public void visitValue(Value operand, OperandMode mode, EnumSet<OperandFlag> flags) {
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2092 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
2093 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
2094 ok = true;
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2095 }
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2096 }
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2097 }
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2098 }
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2099
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2100 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
2101 try (Indent indent = Debug.logAndIndent("verifying that no oops are in fixed intervals *")) {
16801
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
2102 CheckConsumer checkConsumer = new CheckConsumer();
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2103
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
2104 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
2105 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
2106 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
2107 // 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
2108 // 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
2109 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
2110 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
2111 IntervalWalker iw = new IntervalWalker(this, fixedIntervals, otherIntervals);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2112
14152
42013bd831d6 Make LinearScan use AbstractBlock.
Josef Eisl <josef.eisl@jku.at>
parents: 14145
diff changeset
2113 for (AbstractBlock<?> block : sortedBlocks) {
14806
a8723f1ff542 LIR renamed setter and getter functions.
Josef Eisl <josef.eisl@jku.at>
parents: 14789
diff changeset
2114 List<LIRInstruction> instructions = ir.getLIRforBlock(block);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2115
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
2116 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
2117 LIRInstruction op = instructions.get(j);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2118
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 (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
2120 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
2121 boolean checkLive = true;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2122
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
2123 // 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
2124 // 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
2125 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
2126 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
2127 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
2128 // 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
2129 // 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
2130 // referenced by this op either as an input or output.
16801
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
2131 checkConsumer.curInterval = interval;
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
2132 checkConsumer.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
2133
16801
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
2134 op.visitEachInput(checkConsumer);
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
2135 op.visitEachAlive(checkConsumer);
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
2136 op.visitEachTemp(checkConsumer);
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
2137 op.visitEachOutput(checkConsumer);
4245
75c620f90ab9 Support stack-operands and register hints in new register allocator API
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4214
diff changeset
2138
16801
067dbd8e7114 Use ValueConsumer in LinearScan where possible.
Josef Eisl <josef.eisl@jku.at>
parents: 16796
diff changeset
2139 assert checkConsumer.ok : "fixed intervals should never be live across an oopmap point";
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
2140 }
3733
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 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2143 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2144 }
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 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2147 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2148
14070
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2149 /**
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2150 * 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
2151 *
14070
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2152 * @param op An instruction which defines a value
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2153 * @param operand The destination operand of the instruction
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2154 * @param interval The interval for this defined value.
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2155 * @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
2156 * reload-locations in case the interval of this instruction is spilled. Currently this
18187
9619ba4daf4c Rename Constant to JavaConstant.
Roland Schatz <roland.schatz@oracle.com>
parents: 18152
diff changeset
2157 * can only be a {@link JavaConstant}.
14070
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2158 */
18187
9619ba4daf4c Rename Constant to JavaConstant.
Roland Schatz <roland.schatz@oracle.com>
parents: 18152
diff changeset
2159 public static JavaConstant getMaterializedValue(LIRInstruction op, Value operand, Interval interval) {
14070
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2160 if (op instanceof MoveOp) {
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2161 MoveOp move = (MoveOp) op;
18187
9619ba4daf4c Rename Constant to JavaConstant.
Roland Schatz <roland.schatz@oracle.com>
parents: 18152
diff changeset
2162 if (move.getInput() instanceof JavaConstant) {
14070
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2163 /*
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2164 * 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
2165 * == ShouldHaveRegister). Rematerialization of such intervals can result in a
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2166 * 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
2167 * the value is not needed in a register.
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2168 */
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2169 Interval.UsePosList usePosList = interval.usePosList();
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2170 int numUsePos = usePosList.size();
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2171 for (int useIdx = 0; useIdx < numUsePos; useIdx++) {
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2172 Interval.RegisterPriority priority = usePosList.registerPriority(useIdx);
15920
4b835260c746 backout 88a6017687c9
Josef Eisl <josef.eisl@jku.at>
parents: 15914
diff changeset
2173 if (priority == Interval.RegisterPriority.ShouldHaveRegister) {
14070
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2174 return null;
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2175 }
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2176 }
18187
9619ba4daf4c Rename Constant to JavaConstant.
Roland Schatz <roland.schatz@oracle.com>
parents: 18152
diff changeset
2177 return (JavaConstant) move.getInput();
14070
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2178 }
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2179 }
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2180 return null;
a8a82c6e2981 Remove LIRGenerator from LinearScan.
Josef Eisl <josef.eisl@jku.at>
parents: 14057
diff changeset
2181 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
2182 }