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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/virtual/VirtualArrayNode.java @ 16238:db5b41891078

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let ArrayLengthNode implement Canonicalizable.Binary
author Lukas Stadler <lukas.stadler@oracle.com>
date Thu, 26 Jun 2014 10:16:19 +0200
parents d5a1206e1923
children cbd42807a31f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2011, 2012, 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
6ad5bf2efb5e cleanups, merge EscapeRecord and VirtualObjectNode
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16 * 2 along with this work; if not, write to the Free Software Foundation,
6ad5bf2efb5e cleanups, merge EscapeRecord and VirtualObjectNode
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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
6ad5bf2efb5e cleanups, merge EscapeRecord and VirtualObjectNode
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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.virtual;
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24
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25 import sun.misc.*;
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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.graph.*;
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29 import com.oracle.graal.nodes.*;
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30 import com.oracle.graal.nodes.spi.*;
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31
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32 @NodeInfo(nameTemplate = "VirtualArray {p#componentType/s}[{p#length}]")
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33 public class VirtualArrayNode extends VirtualObjectNode implements ArrayLengthProvider {
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34
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35 private final ResolvedJavaType componentType;
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36 private final int length;
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37
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38 public VirtualArrayNode(ResolvedJavaType componentType, int length) {
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39 super(componentType.getArrayClass(), true);
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40 this.componentType = componentType;
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41 this.length = length;
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42 }
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43
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44 @Override
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45 public ResolvedJavaType type() {
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46 return componentType.getArrayClass();
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47 }
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48
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49 public ResolvedJavaType componentType() {
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50 return componentType;
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51 }
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52
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53 @Override
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54 public int entryCount() {
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55 return length;
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56 }
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57
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58 @Override
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59 public void generate(NodeLIRBuilderTool gen) {
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60 // nothing to do...
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61 }
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62
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63 @Override
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64 public String toString(Verbosity verbosity) {
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65 if (verbosity == Verbosity.Name) {
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66 return super.toString(Verbosity.Name) + " " + componentType.getName() + "[" + length + "]";
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67 } else {
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68 return super.toString(verbosity);
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69 }
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70 }
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71
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72 @Override
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73 public String entryName(int index) {
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74 return "[" + index + "]";
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75 }
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76
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77 @Override
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78 public int entryIndexForOffset(long constantOffset) {
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79 int baseOffset;
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80 int indexScale;
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81 switch (componentType.getKind()) {
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82 case Boolean:
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83 baseOffset = Unsafe.ARRAY_BOOLEAN_BASE_OFFSET;
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84 indexScale = Unsafe.ARRAY_BOOLEAN_INDEX_SCALE;
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85 break;
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86 case Byte:
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87 baseOffset = Unsafe.ARRAY_BYTE_BASE_OFFSET;
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88 indexScale = Unsafe.ARRAY_BYTE_INDEX_SCALE;
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89 break;
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90 case Short:
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91 baseOffset = Unsafe.ARRAY_SHORT_BASE_OFFSET;
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92 indexScale = Unsafe.ARRAY_SHORT_INDEX_SCALE;
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93 break;
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94 case Char:
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95 baseOffset = Unsafe.ARRAY_CHAR_BASE_OFFSET;
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96 indexScale = Unsafe.ARRAY_CHAR_INDEX_SCALE;
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97 break;
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98 case Int:
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99 baseOffset = Unsafe.ARRAY_INT_BASE_OFFSET;
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100 indexScale = Unsafe.ARRAY_INT_INDEX_SCALE;
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101 break;
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102 case Long:
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103 baseOffset = Unsafe.ARRAY_LONG_BASE_OFFSET;
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104 indexScale = Unsafe.ARRAY_LONG_INDEX_SCALE;
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105 break;
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106 case Float:
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107 baseOffset = Unsafe.ARRAY_FLOAT_BASE_OFFSET;
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108 indexScale = Unsafe.ARRAY_FLOAT_INDEX_SCALE;
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109 break;
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110 case Double:
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111 baseOffset = Unsafe.ARRAY_DOUBLE_BASE_OFFSET;
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112 indexScale = Unsafe.ARRAY_DOUBLE_INDEX_SCALE;
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113 break;
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114 case Object:
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115 baseOffset = Unsafe.ARRAY_OBJECT_BASE_OFFSET;
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116 indexScale = Unsafe.ARRAY_OBJECT_INDEX_SCALE;
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117 break;
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118 default:
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119 return -1;
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120 }
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121 long index = constantOffset - baseOffset;
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122 if (index % indexScale != 0) {
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123 return -1;
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124 }
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125 long elementIndex = index / indexScale;
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126 if (elementIndex < 0 || elementIndex >= length) {
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127 return -1;
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128 }
ccade022ec83 virtualization of unsafeload and unsafestore
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129 return (int) elementIndex;
ccade022ec83 virtualization of unsafeload and unsafestore
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130 }
7394
94f032472c28 changed PEA interface:
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131
94f032472c28 changed PEA interface:
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132 @Override
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133 public Kind entryKind(int index) {
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134 assert index >= 0 && index < length;
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135 return componentType.getKind();
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136 }
7765
f20c2b1f5289 fix for Object.clone virtualization
Lukas Stadler <lukas.stadler@jku.at>
parents: 7728
diff changeset
137
f20c2b1f5289 fix for Object.clone virtualization
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diff changeset
138 @Override
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139 public VirtualArrayNode duplicate() {
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140 return new VirtualArrayNode(componentType, length);
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141 }
8914
7828409c364c pull materialization logic into VirtualObjectNode classes
Lukas Stadler <lukas.stadler@jku.at>
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diff changeset
142
7828409c364c pull materialization logic into VirtualObjectNode classes
Lukas Stadler <lukas.stadler@jku.at>
parents: 7765
diff changeset
143 @Override
13554
83fd2094ff66 rework of monitorenter/exit (use MonitorIdNode)
Lukas Stadler <lukas.stadler@jku.at>
parents: 12617
diff changeset
144 public ValueNode getMaterializedRepresentation(FixedNode fixed, ValueNode[] entries, LockState locks) {
9501
bef43373de39 coalesce allocations during escape analysis
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145 return new AllocatedObjectNode(this);
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7828409c364c pull materialization logic into VirtualObjectNode classes
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146 }
14019
9d864856336a support canonicalization of arraylength in ReadNode
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 13554
diff changeset
147
9d864856336a support canonicalization of arraylength in ReadNode
Tom Rodriguez <tom.rodriguez@oracle.com>
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diff changeset
148 public ValueNode length() {
16238
db5b41891078 let ArrayLengthNode implement Canonicalizable.Binary
Lukas Stadler <lukas.stadler@oracle.com>
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diff changeset
149 return ConstantNode.forInt(length);
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9d864856336a support canonicalization of arraylength in ReadNode
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parents: 13554
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150 }
6399
6ad5bf2efb5e cleanups, merge EscapeRecord and VirtualObjectNode
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parents:
diff changeset
151 }