Mercurial > hg > graal-compiler
annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotConstantReflectionProvider.java @ 18187:9619ba4daf4c
Rename Constant to JavaConstant.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Thu, 30 Oct 2014 12:21:07 +0100 |
parents | c2270ad35f57 |
children | 8652481a1110 |
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1 /* |
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2 * Copyright (c) 2011, 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.hotspot.meta; |
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24 |
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25 import static com.oracle.graal.compiler.common.UnsafeAccess.*; |
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26 import static com.oracle.graal.hotspot.replacements.HotSpotReplacementsUtil.*; |
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27 |
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28 import java.lang.reflect.*; |
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29 |
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30 import com.oracle.graal.api.meta.*; |
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31 import com.oracle.graal.compiler.common.*; |
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32 import com.oracle.graal.hotspot.*; |
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33 |
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34 /** |
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35 * HotSpot implementation of {@link ConstantReflectionProvider}. |
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36 */ |
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37 public class HotSpotConstantReflectionProvider implements ConstantReflectionProvider { |
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38 |
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39 protected final HotSpotGraalRuntime runtime; |
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40 |
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41 public HotSpotConstantReflectionProvider(HotSpotGraalRuntime runtime) { |
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42 this.runtime = runtime; |
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43 } |
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44 |
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45 @Override |
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46 public Boolean constantEquals(JavaConstant x, JavaConstant y) { |
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47 return x.equals(y); |
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48 } |
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49 |
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50 @Override |
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51 public Integer readArrayLength(JavaConstant array) { |
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52 if (array.getKind() != Kind.Object || array.isNull() || !HotSpotObjectConstant.asObject(array).getClass().isArray()) { |
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53 return null; |
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54 } |
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55 return Array.getLength(HotSpotObjectConstant.asObject(array)); |
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56 } |
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57 |
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58 @Override |
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59 public JavaConstant readUnsafeConstant(Kind kind, JavaConstant baseConstant, long initialDisplacement) { |
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60 Object base; |
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61 long displacement; |
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62 if (baseConstant.getKind() == Kind.Object) { |
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63 base = HotSpotObjectConstant.asObject(baseConstant); |
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64 displacement = initialDisplacement; |
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65 if (base == null) { |
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66 return null; |
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67 } |
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68 } else if (baseConstant.getKind().isNumericInteger()) { |
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69 long baseLong = baseConstant.asLong(); |
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70 if (baseLong == 0L) { |
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71 return null; |
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72 } |
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73 displacement = initialDisplacement + baseLong; |
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74 base = null; |
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75 } else { |
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76 throw GraalInternalError.shouldNotReachHere(); |
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77 } |
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78 |
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79 switch (kind) { |
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80 case Boolean: |
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81 return JavaConstant.forBoolean(base == null ? unsafe.getByte(displacement) != 0 : unsafe.getBoolean(base, displacement)); |
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82 case Byte: |
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83 return JavaConstant.forByte(base == null ? unsafe.getByte(displacement) : unsafe.getByte(base, displacement)); |
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84 case Char: |
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85 return JavaConstant.forChar(base == null ? unsafe.getChar(displacement) : unsafe.getChar(base, displacement)); |
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86 case Short: |
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87 return JavaConstant.forShort(base == null ? unsafe.getShort(displacement) : unsafe.getShort(base, displacement)); |
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88 case Int: |
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89 return JavaConstant.forInt(base == null ? unsafe.getInt(displacement) : unsafe.getInt(base, displacement)); |
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90 case Long: |
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91 if (displacement == config().hubOffset && runtime.getConfig().useCompressedClassPointers) { |
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92 if (base == null) { |
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93 throw new GraalInternalError("Base of object must not be null"); |
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94 } else { |
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95 return JavaConstant.forLong(runtime.getCompilerToVM().readUnsafeKlassPointer(base)); |
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96 } |
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97 } else { |
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98 return JavaConstant.forLong(base == null ? unsafe.getLong(displacement) : unsafe.getLong(base, displacement)); |
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99 } |
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100 case Float: |
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101 return JavaConstant.forFloat(base == null ? unsafe.getFloat(displacement) : unsafe.getFloat(base, displacement)); |
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102 case Double: |
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103 return JavaConstant.forDouble(base == null ? unsafe.getDouble(displacement) : unsafe.getDouble(base, displacement)); |
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104 case Object: { |
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105 Object o = null; |
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106 if (baseConstant.getKind() == Kind.Object) { |
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107 o = unsafe.getObject(base, displacement); |
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108 } else if (baseConstant instanceof HotSpotMetaspaceConstant) { |
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109 Object metaspaceObject = HotSpotMetaspaceConstant.getMetaspaceObject(baseConstant); |
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110 if (metaspaceObject instanceof HotSpotResolvedObjectType && initialDisplacement == runtime.getConfig().classMirrorOffset) { |
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111 o = ((HotSpotResolvedObjectType) metaspaceObject).mirror(); |
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112 } else { |
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113 throw GraalInternalError.shouldNotReachHere(); |
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114 } |
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115 } else { |
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116 throw GraalInternalError.shouldNotReachHere(); |
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117 } |
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118 return HotSpotObjectConstant.forObject(o); |
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119 } |
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120 default: |
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121 throw GraalInternalError.shouldNotReachHere(); |
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122 } |
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123 } |
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124 |
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125 @Override |
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126 public JavaConstant readRawConstant(Kind kind, JavaConstant baseConstant, long initialDisplacement, int bits) { |
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127 Object base; |
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128 long displacement; |
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129 if (baseConstant.getKind() == Kind.Object) { |
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130 base = HotSpotObjectConstant.asObject(baseConstant); |
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131 displacement = initialDisplacement; |
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132 if (base == null) { |
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133 return null; |
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134 } |
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135 } else if (baseConstant.getKind().isNumericInteger()) { |
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136 long baseLong = baseConstant.asLong(); |
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137 if (baseLong == 0L) { |
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138 return null; |
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139 } |
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140 displacement = initialDisplacement + baseLong; |
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141 base = null; |
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142 } else { |
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143 throw GraalInternalError.shouldNotReachHere(); |
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144 } |
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145 |
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146 long rawValue; |
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147 switch (bits) { |
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148 case 8: |
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149 rawValue = base == null ? unsafe.getByte(displacement) : unsafe.getByte(base, displacement); |
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150 break; |
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151 case 16: |
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152 rawValue = base == null ? unsafe.getShort(displacement) : unsafe.getShort(base, displacement); |
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153 break; |
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154 case 32: |
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155 rawValue = base == null ? unsafe.getInt(displacement) : unsafe.getInt(base, displacement); |
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156 break; |
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157 case 64: |
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158 rawValue = base == null ? unsafe.getLong(displacement) : unsafe.getLong(base, displacement); |
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159 break; |
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160 default: |
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161 throw GraalInternalError.shouldNotReachHere(); |
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162 } |
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163 |
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164 if (base != null && displacement == config().hubOffset) { |
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165 if (config().useCompressedClassPointers) { |
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166 assert bits == 32 && kind == Kind.Int; |
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167 long klassPointer = config().getKlassEncoding().uncompress((int) rawValue); |
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168 assert klassPointer == runtime.getCompilerToVM().readUnsafeKlassPointer(base); |
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169 return HotSpotMetaspaceConstant.forMetaspaceObject(kind, rawValue, HotSpotResolvedObjectType.fromMetaspaceKlass(klassPointer), true); |
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170 } else { |
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171 assert bits == 64 && kind == Kind.Long; |
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172 return HotSpotMetaspaceConstant.forMetaspaceObject(kind, rawValue, HotSpotResolvedObjectType.fromMetaspaceKlass(rawValue), false); |
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173 } |
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174 } else { |
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175 switch (kind) { |
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176 case Int: |
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177 return JavaConstant.forInt((int) rawValue); |
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178 case Long: |
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179 return JavaConstant.forLong(rawValue); |
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180 case Float: |
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181 return JavaConstant.forFloat(Float.intBitsToFloat((int) rawValue)); |
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182 case Double: |
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183 return JavaConstant.forDouble(Double.longBitsToDouble(rawValue)); |
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184 default: |
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185 throw GraalInternalError.shouldNotReachHere(); |
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186 } |
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187 } |
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188 } |
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189 |
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190 @Override |
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191 public JavaConstant readArrayElement(JavaConstant array, int index) { |
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192 if (array.getKind() != Kind.Object || array.isNull()) { |
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193 return null; |
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194 } |
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195 Object a = HotSpotObjectConstant.asObject(array); |
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196 |
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197 if (index < 0 || index >= Array.getLength(a)) { |
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198 return null; |
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199 } |
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200 |
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201 if (a instanceof Object[]) { |
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202 return HotSpotObjectConstant.forObject(((Object[]) a)[index]); |
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203 } else { |
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204 return JavaConstant.forBoxedPrimitive(Array.get(a, index)); |
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205 } |
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206 } |
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207 |
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|
208 @Override |
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|
209 public JavaConstant boxPrimitive(JavaConstant source) { |
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210 if (!source.getKind().isPrimitive()) { |
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211 return null; |
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212 } |
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213 return HotSpotObjectConstant.forObject(source.asBoxedPrimitive()); |
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214 } |
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215 |
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216 @Override |
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|
217 public JavaConstant unboxPrimitive(JavaConstant source) { |
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218 if (!source.getKind().isObject()) { |
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219 return null; |
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220 } |
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221 return JavaConstant.forBoxedPrimitive(HotSpotObjectConstant.asObject(source)); |
15018
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222 } |
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223 |
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|
224 @Override |
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diff
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|
225 public ResolvedJavaType asJavaType(JavaConstant constant) { |
15909
e43591136d9f
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diff
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|
226 if (constant instanceof HotSpotObjectConstant) { |
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227 Object obj = HotSpotObjectConstant.asObject(constant); |
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|
228 if (obj instanceof Class) { |
15040
288c23143d47
Fix most raw type references.
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15023
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|
229 return runtime.getHostProviders().getMetaAccess().lookupJavaType((Class<?>) obj); |
15018
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230 } |
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|
231 } |
16183
b1be2a46cc5c
canonicalize LoadMethodNodes
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parents:
15909
diff
changeset
|
232 if (constant instanceof HotSpotMetaspaceConstant) { |
b1be2a46cc5c
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diff
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|
233 Object obj = HotSpotMetaspaceConstant.getMetaspaceObject(constant); |
b1be2a46cc5c
canonicalize LoadMethodNodes
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
15909
diff
changeset
|
234 if (obj instanceof HotSpotResolvedObjectType) { |
b1be2a46cc5c
canonicalize LoadMethodNodes
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
15909
diff
changeset
|
235 return (ResolvedJavaType) obj; |
b1be2a46cc5c
canonicalize LoadMethodNodes
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
15909
diff
changeset
|
236 } |
b1be2a46cc5c
canonicalize LoadMethodNodes
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
15909
diff
changeset
|
237 } |
15018
db4254246f9a
Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13488
diff
changeset
|
238 return null; |
db4254246f9a
Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents:
13488
diff
changeset
|
239 } |
12429
5124eeec1a7b
split HotSpotRuntime into separate provider implementations
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
240 } |