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annotate graal/com.oracle.max.graal.runtime/src/com/oracle/max/graal/runtime/HotSpotField.java @ 3487:b9ed7199f6fb

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special handling for VirtualObject(Field) in IdentifyBlocksPhase (don't schedule out of loops), better toString for HotSpotMethod/Field
author Lukas Stadler <lukas.stadler@jku.at>
date Thu, 04 Aug 2011 18:52:50 +0200
parents 2fb14099d069
children 6b841b6b2437
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1 /*
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2 * Copyright (c) 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
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24 package com.oracle.max.graal.runtime;
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26 import java.lang.reflect.*;
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27
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28 import com.oracle.max.graal.compiler.*;
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29 import com.sun.cri.ci.*;
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30 import com.sun.cri.ri.RiField;
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31 import com.sun.cri.ri.RiType;
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32
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33 /**
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34 * Represents a field in a HotSpot type.
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35 */
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36 public class HotSpotField extends CompilerObject implements RiField {
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37
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38 private final RiType holder;
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39 private final String name;
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40 private final RiType type;
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41 private final int offset;
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42 private final int accessFlags;
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43 private CiConstant constant;
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44
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45 public HotSpotField(Compiler compiler, RiType holder, String name, RiType type, int offset, int accessFlags) {
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46 super(compiler);
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47 this.holder = holder;
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48 this.name = name;
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49 this.type = type;
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50 this.offset = offset;
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51 this.accessFlags = accessFlags;
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52 }
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53
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54 @Override
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55 public int accessFlags() {
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56 return accessFlags;
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57 }
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58
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59 @Override
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60 public CiConstant constantValue(CiConstant receiver) {
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61 if (receiver == null) {
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62 if (constant == null && holder.isResolved() && holder.isSubtypeOf(compiler.getVMEntries().getType(GraalOptions.class))) {
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63 Field f;
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64 try {
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65 f = GraalOptions.class.getField(name);
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66 } catch (SecurityException e1) {
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67 return null;
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68 } catch (NoSuchFieldException e1) {
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69 return null;
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70 }
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71 f.setAccessible(true);
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72 if (Modifier.isStatic(f.getModifiers())) {
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73 CiKind kind = CiKind.fromJavaClass(f.getType());
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74 Object value;
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75 try {
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76 value = f.get(null);
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77 } catch (IllegalArgumentException e) {
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78 return null;
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79 } catch (IllegalAccessException e) {
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80 return null;
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81 }
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82 constant = CiConstant.forBoxed(kind, value);
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83 }
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84 }
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85
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86 // Constant part only valid for static fields.
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87 return constant;
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88 }
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89 return null;
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90 }
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91
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92 @Override
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93 public RiType holder() {
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94 return holder;
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95 }
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96
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97 // @Override
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98 // public boolean equals(Object obj) {
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99 // if (obj instanceof HotSpotField) {
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100 // HotSpotField other = (HotSpotField) obj;
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101 // return other.offset == offset && other.holder.equals(holder());
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102 // }
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103 // return false;
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104 // }
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105
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106 @Override
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107 public boolean isResolved() {
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108 return holder.isResolved();
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109 }
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110
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111 @Override
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112 public CiKind kind() {
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113 return type().kind();
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114 }
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115
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116 @Override
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117 public String name() {
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118 return name;
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119 }
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120
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121 @Override
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122 public RiType type() {
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123 return type;
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124 }
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125
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126 public int offset() {
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127 return offset;
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128 }
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129
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130 @Override
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131 public String toString() {
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b9ed7199f6fb special handling for VirtualObject(Field) in IdentifyBlocksPhase (don't schedule out of loops), better toString for HotSpotMethod/Field
Lukas Stadler <lukas.stadler@jku.at>
parents: 3098
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132 return "HotSpotField<" + CiUtil.format("%h.%n", this, false) + ":" + offset + ">";
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6594e6d8bfe7 Rebranding to com.oracle.graal
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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133 }
6594e6d8bfe7 Rebranding to com.oracle.graal
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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134
6594e6d8bfe7 Rebranding to com.oracle.graal
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
135 }