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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotResolvedJavaField.java @ 10065:5ba3763d6986

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HotSpotResolvedJavaField: check if method is called from snippet/replacements (GRAAL-290)
author Bernhard Urban <bernhard.urban@jku.at>
date Sun, 16 Jun 2013 23:55:22 +0200
parents 9e688291fc53
children 295ef03139f4
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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.graal.hotspot.meta;
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25
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26 import static com.oracle.graal.api.meta.MetaUtil.*;
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27 import static com.oracle.graal.hotspot.HotSpotGraalRuntime.*;
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28 import static com.oracle.graal.phases.GraalOptions.*;
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29
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30 import java.lang.annotation.*;
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31 import java.lang.reflect.*;
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32
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33 import com.oracle.graal.api.meta.*;
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34 import com.oracle.graal.graph.*;
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35 import com.oracle.graal.hotspot.*;
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36 import com.oracle.graal.options.*;
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37 import com.oracle.graal.replacements.*;
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38 import com.oracle.graal.replacements.Snippet.SnippetInliningPolicy;
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39 import com.oracle.graal.replacements.SnippetTemplate.Arguments;
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40
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41 /**
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42 * Represents a field in a HotSpot type.
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43 */
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44 public class HotSpotResolvedJavaField extends CompilerObject implements ResolvedJavaField, LocationIdentity {
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45
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46 // Must not conflict with any fields flags used by the VM - the assertion in the constructor
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47 // checks this assumption
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48 private static final int FIELD_INTERNAL_FLAG = 0x80000000;
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49
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50 private static final long serialVersionUID = 7692985878836955683L;
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51 private final HotSpotResolvedObjectType holder;
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52 private final String name;
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53 private final JavaType type;
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54 private final int offset;
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55 private final int flags;
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56 private Constant constant;
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57
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58 public HotSpotResolvedJavaField(HotSpotResolvedObjectType holder, String name, JavaType type, int offset, int flags, boolean internal) {
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59 assert (flags & FIELD_INTERNAL_FLAG) == 0;
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60 this.holder = holder;
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61 this.name = name;
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62 this.type = type;
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63 assert offset != -1;
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64 this.offset = offset;
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65 if (internal) {
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66 this.flags = flags | FIELD_INTERNAL_FLAG;
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67 } else {
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68 this.flags = flags;
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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 int getModifiers() {
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74 return flags & Modifier.fieldModifiers();
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75 }
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76
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77 @Override
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78 public boolean isInternal() {
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79 return (flags & FIELD_INTERNAL_FLAG) != 0;
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80 }
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81
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82 /**
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83 * if the compiler is configured for AOT mode, {@link #readConstantValue(Constant)} should be
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84 * only called for snippets or replacements.
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85 */
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86 private static boolean isCalledForSnippets() {
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87 HotSpotRuntime runtime = graalRuntime().getRuntime();
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88
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89 ResolvedJavaMethod makeGraphMethod = null;
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90 ResolvedJavaMethod initMethod = null;
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91 try {
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92 Class<?> rjm = ResolvedJavaMethod.class;
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93 makeGraphMethod = runtime.lookupJavaMethod(ReplacementsImpl.class.getDeclaredMethod("makeGraph", rjm, rjm, SnippetInliningPolicy.class));
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94 initMethod = runtime.lookupJavaMethod(SnippetTemplate.AbstractTemplates.class.getDeclaredMethod("template", Arguments.class));
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95 } catch (NoSuchMethodException | SecurityException e) {
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96 throw new GraalInternalError(e);
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97 }
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98 StackTraceElement makeGraphSTE = makeGraphMethod.asStackTraceElement(1);
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99 StackTraceElement initSTE = initMethod.asStackTraceElement(30);
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100
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101 for (StackTraceElement element : new Exception().getStackTrace()) {
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102 if (makeGraphSTE.equals(element) || initSTE.equals(element)) {
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103 return true;
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104 }
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105 }
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106 return false;
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107 }
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108
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109 private static final String SystemClassName = MetaUtil.toInternalName(System.class.getName());
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110 private static final String IntegerCacheClassName = "Ljava/lang/Integer$IntegerCache;";
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111 private static final String LongCacheClassName = "Ljava/lang/Long$LongCache;";
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112 private static final String BooleanCacheName = MetaUtil.toInternalName(Boolean.class.getName());
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113 private static final String ThrowableClassName = MetaUtil.toInternalName(Throwable.class.getName());
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114
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115 private boolean isConstantCache() {
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116 if (AOTCompilation.getValue()) {
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117 String n = holder.getName();
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118 return n.equals(IntegerCacheClassName) || n.equals(LongCacheClassName) || n.equals(BooleanCacheName) || n.equals(ThrowableClassName);
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119 }
5ba3763d6986 HotSpotResolvedJavaField: check if method is called from snippet/replacements (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10063
diff changeset
120 return false;
10062
56fc40ca4ae0 HotSpotResolvedJavaField: don't embed caches of java.lang.{Integer,Long,Boolean} for replacements when compiled in AOT mode (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents: 9984
diff changeset
121 }
6950
41938af2b3d8 modifications to support non-perm-gen changes in HotSpot
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diff changeset
122
41938af2b3d8 modifications to support non-perm-gen changes in HotSpot
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parents: 6539
diff changeset
123 @Override
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: 6525
diff changeset
124 public Constant readConstantValue(Constant receiver) {
10065
5ba3763d6986 HotSpotResolvedJavaField: check if method is called from snippet/replacements (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10063
diff changeset
125 assert !AOTCompilation.getValue() || isCalledForSnippets();
5ba3763d6986 HotSpotResolvedJavaField: check if method is called from snippet/replacements (GRAAL-290)
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parents: 10063
diff changeset
126
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parents:
diff changeset
127 if (receiver == null) {
6950
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parents: 6539
diff changeset
128 assert Modifier.isStatic(flags);
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parents:
diff changeset
129 if (constant == null) {
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56fc40ca4ae0 HotSpotResolvedJavaField: don't embed caches of java.lang.{Integer,Long,Boolean} for replacements when compiled in AOT mode (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents: 9984
diff changeset
130 if (holder.isInitialized() && !holder.getName().equals(SystemClassName) && !isConstantCache()) {
9864
063a712fe8d8 converted remaining options in GraalOptions to new system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents: 9792
diff changeset
131 if (Modifier.isFinal(getModifiers())) {
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: 6525
diff changeset
132 constant = readValue(receiver);
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133 }
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134 }
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135 }
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136 return constant;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
137 } else {
7689
ed51e7237e94 extracted TODOs as issues
Christian Haeubl <haeubl@ssw.jku.at>
parents: 7530
diff changeset
138 /*
ed51e7237e94 extracted TODOs as issues
Christian Haeubl <haeubl@ssw.jku.at>
parents: 7530
diff changeset
139 * for non-static final fields, we must assume that they are only initialized if they
ed51e7237e94 extracted TODOs as issues
Christian Haeubl <haeubl@ssw.jku.at>
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diff changeset
140 * have a non-default value.
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Christian Haeubl <haeubl@ssw.jku.at>
parents: 7530
diff changeset
141 */
6950
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Doug Simon <doug.simon@oracle.com>
parents: 6539
diff changeset
142 assert !Modifier.isStatic(flags);
9912
fbad7372eccd added support for stable options
Doug Simon <doug.simon@oracle.com>
parents: 9864
diff changeset
143 Object object = receiver.asObject();
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: 6525
diff changeset
144 if (Modifier.isFinal(getModifiers())) {
7689
ed51e7237e94 extracted TODOs as issues
Christian Haeubl <haeubl@ssw.jku.at>
parents: 7530
diff changeset
145 Constant value = readValue(receiver);
9912
fbad7372eccd added support for stable options
Doug Simon <doug.simon@oracle.com>
parents: 9864
diff changeset
146 if (assumeNonStaticFinalFieldsAsFinal(object.getClass()) || !value.isDefaultForKind()) {
7689
ed51e7237e94 extracted TODOs as issues
Christian Haeubl <haeubl@ssw.jku.at>
parents: 7530
diff changeset
147 return value;
ed51e7237e94 extracted TODOs as issues
Christian Haeubl <haeubl@ssw.jku.at>
parents: 7530
diff changeset
148 }
9912
fbad7372eccd added support for stable options
Doug Simon <doug.simon@oracle.com>
parents: 9864
diff changeset
149 } else {
fbad7372eccd added support for stable options
Doug Simon <doug.simon@oracle.com>
parents: 9864
diff changeset
150 Class<?> clazz = object.getClass();
9914
84890660eefb cleaner implementation of stable options
Doug Simon <doug.simon@oracle.com>
parents: 9912
diff changeset
151 if (StableOptionValue.class.isAssignableFrom(clazz)) {
84890660eefb cleaner implementation of stable options
Doug Simon <doug.simon@oracle.com>
parents: 9912
diff changeset
152 StableOptionValue<?> option = (StableOptionValue<?>) object;
84890660eefb cleaner implementation of stable options
Doug Simon <doug.simon@oracle.com>
parents: 9912
diff changeset
153 return Constant.forObject(option.getValue());
9912
fbad7372eccd added support for stable options
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parents: 9864
diff changeset
154 }
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155 }
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parents:
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156 }
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parents:
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157 return null;
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parents:
diff changeset
158 }
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parents:
diff changeset
159
5629
26a060cc58ca Initial implementation of closed world analysis by iteratively expanding the universe starting at method entry points.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5554
diff changeset
160 @Override
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: 6525
diff changeset
161 public Constant readValue(Constant receiver) {
5629
26a060cc58ca Initial implementation of closed world analysis by iteratively expanding the universe starting at method entry points.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5554
diff changeset
162 if (receiver == null) {
6950
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parents: 6539
diff changeset
163 assert Modifier.isStatic(flags);
5629
26a060cc58ca Initial implementation of closed world analysis by iteratively expanding the universe starting at method entry points.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5554
diff changeset
164 if (holder.isInitialized()) {
9289
261a43921c5e rename: HotSpotGraalRuntime.getInstance() -> graalRuntime()
Doug Simon <doug.simon@oracle.com>
parents: 8960
diff changeset
165 return graalRuntime().getRuntime().readUnsafeConstant(getKind(), holder.mirror(), offset);
5629
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5554
diff changeset
166 }
26a060cc58ca Initial implementation of closed world analysis by iteratively expanding the universe starting at method entry points.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5554
diff changeset
167 return null;
26a060cc58ca Initial implementation of closed world analysis by iteratively expanding the universe starting at method entry points.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5554
diff changeset
168 } else {
6950
41938af2b3d8 modifications to support non-perm-gen changes in HotSpot
Doug Simon <doug.simon@oracle.com>
parents: 6539
diff changeset
169 assert !Modifier.isStatic(flags);
9289
261a43921c5e rename: HotSpotGraalRuntime.getInstance() -> graalRuntime()
Doug Simon <doug.simon@oracle.com>
parents: 8960
diff changeset
170 return graalRuntime().getRuntime().readUnsafeConstant(getKind(), receiver.asObject(), offset);
5629
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5554
diff changeset
171 }
26a060cc58ca Initial implementation of closed world analysis by iteratively expanding the universe starting at method entry points.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5554
diff changeset
172 }
26a060cc58ca Initial implementation of closed world analysis by iteratively expanding the universe starting at method entry points.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5554
diff changeset
173
7691
014092acf009 fixed bootstrap performance issue that occurred because non-static final fields are no longer assumed constant
Christian Haeubl <haeubl@ssw.jku.at>
parents: 7689
diff changeset
174 private static boolean assumeNonStaticFinalFieldsAsFinal(Class<?> clazz) {
014092acf009 fixed bootstrap performance issue that occurred because non-static final fields are no longer assumed constant
Christian Haeubl <haeubl@ssw.jku.at>
parents: 7689
diff changeset
175 return clazz == SnippetCounter.class;
014092acf009 fixed bootstrap performance issue that occurred because non-static final fields are no longer assumed constant
Christian Haeubl <haeubl@ssw.jku.at>
parents: 7689
diff changeset
176 }
014092acf009 fixed bootstrap performance issue that occurred because non-static final fields are no longer assumed constant
Christian Haeubl <haeubl@ssw.jku.at>
parents: 7689
diff changeset
177
3733
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parents:
diff changeset
178 @Override
7104
5c25483b5515 Remove the ResolvedJavaType.Representation for static fields. It is not necessary to emit the constant holder for static fields in the GraphBuilder. Only the VM-specific lowering needs to create the constants, and it can access the VM-specific metadata objects directly.
Christian Wimmer <christian.wimmer@oracle.com>
parents: 7099
diff changeset
179 public HotSpotResolvedObjectType getDeclaringClass() {
3733
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parents:
diff changeset
180 return holder;
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parents:
diff changeset
181 }
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parents:
diff changeset
182
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parents:
diff changeset
183 @Override
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: 6525
diff changeset
184 public Kind getKind() {
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: 6525
diff changeset
185 return getType().getKind();
3733
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parents:
diff changeset
186 }
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parents:
diff changeset
187
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parents:
diff changeset
188 @Override
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: 6525
diff changeset
189 public String getName() {
3733
e233f5660da4 Added Java files from Maxine project.
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parents:
diff changeset
190 return name;
e233f5660da4 Added Java files from Maxine project.
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parents:
diff changeset
191 }
e233f5660da4 Added Java files from Maxine project.
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parents:
diff changeset
192
e233f5660da4 Added Java files from Maxine project.
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parents:
diff changeset
193 @Override
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: 6525
diff changeset
194 public JavaType getType() {
3733
e233f5660da4 Added Java files from Maxine project.
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parents:
diff changeset
195 return type;
e233f5660da4 Added Java files from Maxine project.
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parents:
diff changeset
196 }
e233f5660da4 Added Java files from Maxine project.
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parents:
diff changeset
197
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
198 public int offset() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
199 return offset;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
200 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
201
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
202 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
203 public String toString() {
8949
da5140eedfa1 made format of toString() consistent across HotSpot subclasses of JavaField and JavaMethod
Doug Simon <doug.simon@oracle.com>
parents: 8415
diff changeset
204 return format("HotSpotField<%H.%n %t:", this) + offset + ">";
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
205 }
e233f5660da4 Added Java files from Maxine project.
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parents:
diff changeset
206
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
207 @Override
9984
f3330a4487eb added ResolvedJava[Field|Method].isSynthetic()
Doug Simon <doug.simon@oracle.com>
parents: 9914
diff changeset
208 public boolean isSynthetic() {
f3330a4487eb added ResolvedJava[Field|Method].isSynthetic()
Doug Simon <doug.simon@oracle.com>
parents: 9914
diff changeset
209 Field javaField = toJava();
f3330a4487eb added ResolvedJava[Field|Method].isSynthetic()
Doug Simon <doug.simon@oracle.com>
parents: 9914
diff changeset
210 if (javaField != null) {
f3330a4487eb added ResolvedJava[Field|Method].isSynthetic()
Doug Simon <doug.simon@oracle.com>
parents: 9914
diff changeset
211 return javaField.isSynthetic();
f3330a4487eb added ResolvedJava[Field|Method].isSynthetic()
Doug Simon <doug.simon@oracle.com>
parents: 9914
diff changeset
212 }
f3330a4487eb added ResolvedJava[Field|Method].isSynthetic()
Doug Simon <doug.simon@oracle.com>
parents: 9914
diff changeset
213 return false;
f3330a4487eb added ResolvedJava[Field|Method].isSynthetic()
Doug Simon <doug.simon@oracle.com>
parents: 9914
diff changeset
214 }
f3330a4487eb added ResolvedJava[Field|Method].isSynthetic()
Doug Simon <doug.simon@oracle.com>
parents: 9914
diff changeset
215
f3330a4487eb added ResolvedJava[Field|Method].isSynthetic()
Doug Simon <doug.simon@oracle.com>
parents: 9914
diff changeset
216 @Override
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
217 public <T extends Annotation> T getAnnotation(Class<T> annotationClass) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
218 Field javaField = toJava();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
219 if (javaField != null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
220 return javaField.getAnnotation(annotationClass);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
221 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
222 return null;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
223 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
224
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
225 private Field toJava() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
226 try {
7053
014727292ae0 removed more usages of ResolvedJavaType.toJava()
Doug Simon <doug.simon@oracle.com>
parents: 6950
diff changeset
227 return holder.mirror().getDeclaredField(name);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
228 } catch (NoSuchFieldException e) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
229 return null;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
230 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
231 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
232 }