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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/UnboxNode.java @ 14085:af84c0b2e74f

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Don't remove UnboxNode if the incoming type is wrong.
author Roland Schatz <roland.schatz@oracle.com>
date Thu, 06 Mar 2014 10:40:00 +0100
parents 0fc653a9e019
children fd7fcd2d2072
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2013, 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.nodes.extended;
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24
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25 import com.oracle.graal.api.meta.*;
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26 import com.oracle.graal.graph.*;
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27 import com.oracle.graal.graph.spi.*;
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28 import com.oracle.graal.nodes.*;
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29 import com.oracle.graal.nodes.calc.*;
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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 public class UnboxNode extends FloatingNode implements Virtualizable, Lowerable, Canonicalizable {
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34
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35 @Input private ValueNode value;
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36 private final Kind boxingKind;
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37
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38 public UnboxNode(ValueNode value, Kind boxingKind) {
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39 super(StampFactory.forKind(boxingKind.getStackKind()));
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40 this.value = value;
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41 this.boxingKind = boxingKind;
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42 }
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43
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44 public Kind getBoxingKind() {
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45 return boxingKind;
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46 }
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47
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48 public ValueNode getValue() {
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49 return value;
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50 }
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51
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52 @Override
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53 public void lower(LoweringTool tool) {
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54 tool.getLowerer().lower(this, tool);
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55 }
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56
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57 @Override
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58 public void virtualize(VirtualizerTool tool) {
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59 State state = tool.getObjectState(value);
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60 if (state != null && state.getState() == EscapeState.Virtual) {
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61 ResolvedJavaType objectType = state.getVirtualObject().type();
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62 ResolvedJavaType expectedType = tool.getMetaAccessProvider().lookupJavaType(boxingKind.toBoxedJavaClass());
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63 if (objectType == expectedType) {
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64 tool.replaceWithValue(state.getEntry(0));
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65 }
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66 }
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67 }
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68
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69 @Override
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70 public Node canonical(CanonicalizerTool tool) {
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71 if (value.isConstant()) {
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72 Constant constant = value.asConstant();
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73 Object o = constant.asObject();
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74 if (o != null) {
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75 switch (boxingKind) {
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76 case Boolean:
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77 return ConstantNode.forBoolean((Boolean) o, graph());
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78 case Byte:
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79 return ConstantNode.forByte((Byte) o, graph());
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80 case Char:
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81 return ConstantNode.forChar((Character) o, graph());
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82 case Short:
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83 return ConstantNode.forShort((Short) o, graph());
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84 case Int:
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85 return ConstantNode.forInt((Integer) o, graph());
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86 case Long:
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87 return ConstantNode.forLong((Long) o, graph());
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88 case Float:
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89 return ConstantNode.forFloat((Float) o, graph());
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90 case Double:
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91 return ConstantNode.forDouble((Double) o, graph());
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92 default:
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93 ValueNodeUtil.shouldNotReachHere();
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94 }
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95 }
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96 } else if (value instanceof BoxNode) {
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97 BoxNode box = (BoxNode) value;
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98 if (boxingKind == box.getBoxingKind()) {
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99 return box.getValue();
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100 }
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101 }
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102 if (usages().isEmpty()) {
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103 return null;
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104 }
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105 return this;
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106 }
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107
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108 @NodeIntrinsic
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109 public static native boolean unbox(Boolean value, @ConstantNodeParameter Kind kind);
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110
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111 @NodeIntrinsic
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112 public static native byte unbox(Byte value, @ConstantNodeParameter Kind kind);
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113
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114 @NodeIntrinsic
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115 public static native char unbox(Character value, @ConstantNodeParameter Kind kind);
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116
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117 @NodeIntrinsic
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118 public static native double unbox(Double value, @ConstantNodeParameter Kind kind);
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119
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120 @NodeIntrinsic
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121 public static native float unbox(Float value, @ConstantNodeParameter Kind kind);
653110156f8a refactored boxing identification and lowering, removed BoxingMethodPool and explicit boxing phases
Lukas Stadler <lukas.stadler@jku.at>
parents: 7660
diff changeset
122
653110156f8a refactored boxing identification and lowering, removed BoxingMethodPool and explicit boxing phases
Lukas Stadler <lukas.stadler@jku.at>
parents: 7660
diff changeset
123 @NodeIntrinsic
653110156f8a refactored boxing identification and lowering, removed BoxingMethodPool and explicit boxing phases
Lukas Stadler <lukas.stadler@jku.at>
parents: 7660
diff changeset
124 public static native int unbox(Integer value, @ConstantNodeParameter Kind kind);
653110156f8a refactored boxing identification and lowering, removed BoxingMethodPool and explicit boxing phases
Lukas Stadler <lukas.stadler@jku.at>
parents: 7660
diff changeset
125
653110156f8a refactored boxing identification and lowering, removed BoxingMethodPool and explicit boxing phases
Lukas Stadler <lukas.stadler@jku.at>
parents: 7660
diff changeset
126 @NodeIntrinsic
653110156f8a refactored boxing identification and lowering, removed BoxingMethodPool and explicit boxing phases
Lukas Stadler <lukas.stadler@jku.at>
parents: 7660
diff changeset
127 public static native long unbox(Long value, @ConstantNodeParameter Kind kind);
653110156f8a refactored boxing identification and lowering, removed BoxingMethodPool and explicit boxing phases
Lukas Stadler <lukas.stadler@jku.at>
parents: 7660
diff changeset
128
653110156f8a refactored boxing identification and lowering, removed BoxingMethodPool and explicit boxing phases
Lukas Stadler <lukas.stadler@jku.at>
parents: 7660
diff changeset
129 @NodeIntrinsic
653110156f8a refactored boxing identification and lowering, removed BoxingMethodPool and explicit boxing phases
Lukas Stadler <lukas.stadler@jku.at>
parents: 7660
diff changeset
130 public static native short unbox(Short value, @ConstantNodeParameter Kind kind);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
131 }