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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/ConditionalNode.java @ 11314:dc14bcf752ea
New constructor for ConditionalNode. Made CustomTypeCheck node a LogicNode.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Fri, 16 Aug 2013 12:09:36 +0200 |
parents | 6d28ce8cdeb7 |
children | 8185c119d731 |
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1 /* |
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2 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.oracle.graal.nodes.calc; |
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24 |
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25 import static com.oracle.graal.nodes.calc.CompareNode.*; |
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26 |
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27 import com.oracle.graal.api.meta.*; |
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28 import com.oracle.graal.nodes.*; |
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29 import com.oracle.graal.nodes.java.*; |
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30 import com.oracle.graal.nodes.spi.*; |
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31 import com.oracle.graal.nodes.type.*; |
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32 |
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33 /** |
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34 * The {@code ConditionalNode} class represents a comparison that yields one of two values. Note |
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35 * that these nodes are not built directly from the bytecode but are introduced by canonicalization. |
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36 */ |
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37 public final class ConditionalNode extends BinaryNode implements Canonicalizable, LIRLowerable, Negatable { |
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38 |
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39 @Input private LogicNode condition; |
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40 |
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41 public LogicNode condition() { |
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42 return condition; |
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43 } |
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44 |
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45 public ConditionalNode(LogicNode condition) { |
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46 this(condition, ConstantNode.forInt(1, condition.graph()), ConstantNode.forInt(0, condition.graph())); |
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47 } |
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48 |
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49 public ConditionalNode(LogicNode condition, ValueNode trueValue, ValueNode falseValue) { |
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50 super(trueValue.kind(), trueValue, falseValue); |
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51 assert trueValue.kind() == falseValue.kind(); |
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52 this.condition = condition; |
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53 } |
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54 |
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55 @Override |
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56 public boolean inferStamp() { |
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57 return updateStamp(x().stamp().meet(y().stamp())); |
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58 } |
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59 |
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60 public ValueNode trueValue() { |
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61 return x(); |
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62 } |
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63 |
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64 public ValueNode falseValue() { |
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65 return y(); |
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66 } |
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67 |
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68 @Override |
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69 public ValueNode canonical(CanonicalizerTool tool) { |
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70 // this optimizes the case where a value that can only be 0 or 1 is materialized to 0 or 1 |
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71 if (x().isConstant() && y().isConstant() && condition instanceof IntegerEqualsNode) { |
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72 IntegerEqualsNode equals = (IntegerEqualsNode) condition; |
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73 if (equals.y().isConstant() && equals.y().asConstant().equals(Constant.INT_0) && equals.x().stamp() instanceof IntegerStamp) { |
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74 IntegerStamp equalsXStamp = (IntegerStamp) equals.x().stamp(); |
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75 if (equalsXStamp.mask() == 1) { |
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76 if (x().asConstant().equals(Constant.INT_0) && y().asConstant().equals(Constant.INT_1)) { |
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77 return equals.x(); |
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78 } |
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79 } |
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80 } |
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81 } |
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82 if (condition instanceof LogicConstantNode) { |
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83 LogicConstantNode c = (LogicConstantNode) condition; |
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84 if (c.getValue()) { |
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85 return trueValue(); |
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86 } else { |
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87 return falseValue(); |
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88 } |
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89 } |
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90 if (trueValue() == falseValue()) { |
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91 return trueValue(); |
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92 } |
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93 |
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94 return this; |
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95 } |
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96 |
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97 @Override |
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98 public void generate(LIRGeneratorTool generator) { |
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99 generator.emitConditional(this); |
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100 } |
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101 |
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102 @Override |
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103 public Negatable negate(LogicNode cond) { |
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104 assert condition() == cond; |
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105 ConditionalNode replacement = graph().unique(new ConditionalNode(condition, falseValue(), trueValue())); |
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106 graph().replaceFloating(this, replacement); |
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107 return replacement; |
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108 } |
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109 |
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110 private ConditionalNode(Condition condition, ValueNode x, ValueNode y) { |
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111 this(createCompareNode(condition, x, y)); |
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112 } |
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113 |
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114 private ConditionalNode(ValueNode type, ValueNode object) { |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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11278
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115 this(type.graph().add(new InstanceOfDynamicNode(type, object))); |
7724
ac3579b4adc9
remove MaterializeNode
Lukas Stadler <lukas.stadler@jku.at>
parents:
7530
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116 } |
ac3579b4adc9
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Lukas Stadler <lukas.stadler@jku.at>
parents:
7530
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117 |
ac3579b4adc9
remove MaterializeNode
Lukas Stadler <lukas.stadler@jku.at>
parents:
7530
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118 @NodeIntrinsic |
ac3579b4adc9
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Lukas Stadler <lukas.stadler@jku.at>
parents:
7530
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119 public static native boolean materializeCondition(@ConstantNodeParameter Condition condition, int x, int y); |
ac3579b4adc9
remove MaterializeNode
Lukas Stadler <lukas.stadler@jku.at>
parents:
7530
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120 |
ac3579b4adc9
remove MaterializeNode
Lukas Stadler <lukas.stadler@jku.at>
parents:
7530
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121 @NodeIntrinsic |
ac3579b4adc9
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Lukas Stadler <lukas.stadler@jku.at>
parents:
7530
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122 public static native boolean materializeCondition(@ConstantNodeParameter Condition condition, long x, long y); |
ac3579b4adc9
remove MaterializeNode
Lukas Stadler <lukas.stadler@jku.at>
parents:
7530
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123 |
ac3579b4adc9
remove MaterializeNode
Lukas Stadler <lukas.stadler@jku.at>
parents:
7530
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124 @NodeIntrinsic |
8480
7abc6865bdc6
made method substitutions for Class be interpretable
Doug Simon <doug.simon@oracle.com>
parents:
8451
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125 public static boolean materializeIsInstance(Class mirror, Object object) { |
7abc6865bdc6
made method substitutions for Class be interpretable
Doug Simon <doug.simon@oracle.com>
parents:
8451
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126 return mirror.isInstance(object); |
7abc6865bdc6
made method substitutions for Class be interpretable
Doug Simon <doug.simon@oracle.com>
parents:
8451
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127 } |
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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128 } |