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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotMetaAccessProvider.java @ 16535:ada0a7729b6f

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Truffle: introduce debug option to print the stack trace when transferring to the interpreter
author Andreas Woess <andreas.woess@jku.at>
date Wed, 16 Jul 2014 15:18:48 +0200
parents e43591136d9f
children 2bf5ea10eea7
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
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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
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27 import java.lang.reflect.*;
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28
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29 import com.oracle.graal.api.code.*;
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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 import com.oracle.graal.hotspot.replacements.*;
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34
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35 /**
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36 * HotSpot implementation of {@link MetaAccessProvider}.
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37 */
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38 public class HotSpotMetaAccessProvider implements MetaAccessProvider {
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39
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40 protected final HotSpotGraalRuntime runtime;
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41
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42 public HotSpotMetaAccessProvider(HotSpotGraalRuntime runtime) {
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43 this.runtime = runtime;
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44 }
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45
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46 public ResolvedJavaType lookupJavaType(Class<?> clazz) {
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47 if (clazz == null) {
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48 throw new IllegalArgumentException("Class parameter was null");
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49 }
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50 return HotSpotResolvedObjectType.fromClass(clazz);
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51 }
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52
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53 public ResolvedJavaType lookupJavaType(Constant constant) {
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54 if (constant.isNull() || !(constant instanceof HotSpotObjectConstant)) {
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55 return null;
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56 }
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57 Object o = HotSpotObjectConstant.asObject(constant);
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58 return HotSpotResolvedObjectType.fromClass(o.getClass());
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59 }
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60
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61 public Signature parseMethodDescriptor(String signature) {
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62 return new HotSpotSignature(signature);
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63 }
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64
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65 /**
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66 * {@link Field} object of {@link Method#slot}.
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67 */
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68 @SuppressWarnings("javadoc") private Field reflectionMethodSlot = getReflectionSlotField(Method.class);
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69
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70 /**
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71 * {@link Field} object of {@link Constructor#slot}.
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72 */
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73 @SuppressWarnings("javadoc") private Field reflectionConstructorSlot = getReflectionSlotField(Constructor.class);
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74
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75 private static Field getReflectionSlotField(Class<?> reflectionClass) {
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76 try {
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77 Field field = reflectionClass.getDeclaredField("slot");
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78 field.setAccessible(true);
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79 return field;
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80 } catch (NoSuchFieldException | SecurityException e) {
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81 throw new GraalInternalError(e);
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82 }
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83 }
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84
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85 public ResolvedJavaMethod lookupJavaMethod(Method reflectionMethod) {
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86 try {
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87 Class<?> holder = reflectionMethod.getDeclaringClass();
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88 final int slot = reflectionMethodSlot.getInt(reflectionMethod);
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89 final long metaspaceMethod = runtime.getCompilerToVM().getMetaspaceMethod(holder, slot);
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90 return HotSpotResolvedJavaMethod.fromMetaspace(metaspaceMethod);
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91 } catch (IllegalArgumentException | IllegalAccessException e) {
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92 throw new GraalInternalError(e);
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93 }
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94 }
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95
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96 public ResolvedJavaMethod lookupJavaConstructor(Constructor<?> reflectionConstructor) {
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97 try {
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98 Class<?> holder = reflectionConstructor.getDeclaringClass();
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99 final int slot = reflectionConstructorSlot.getInt(reflectionConstructor);
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100 final long metaspaceMethod = runtime.getCompilerToVM().getMetaspaceMethod(holder, slot);
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101 return HotSpotResolvedJavaMethod.fromMetaspace(metaspaceMethod);
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102 } catch (IllegalArgumentException | IllegalAccessException e) {
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103 throw new GraalInternalError(e);
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104 }
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105 }
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106
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107 public ResolvedJavaField lookupJavaField(Field reflectionField) {
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108 String name = reflectionField.getName();
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109 Class<?> fieldHolder = reflectionField.getDeclaringClass();
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110 Class<?> fieldType = reflectionField.getType();
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111 // java.lang.reflect.Field's modifiers should be enough here since VM internal modifier bits
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112 // are not used (yet).
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113 final int modifiers = reflectionField.getModifiers();
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114 final long offset = Modifier.isStatic(modifiers) ? unsafe.staticFieldOffset(reflectionField) : unsafe.objectFieldOffset(reflectionField);
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115
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116 ResolvedJavaType holder = HotSpotResolvedObjectType.fromClass(fieldHolder);
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117 ResolvedJavaType type = HotSpotResolvedObjectType.fromClass(fieldType);
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118
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119 if (offset != -1) {
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120 HotSpotResolvedObjectType resolved = (HotSpotResolvedObjectType) holder;
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121 return resolved.createField(name, type, offset, modifiers);
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122 } else {
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123 throw GraalInternalError.shouldNotReachHere("unresolved field " + reflectionField);
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124 }
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125 }
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126
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127 private static int intMaskRight(int n) {
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128 assert n <= 32;
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129 return n == 32 ? -1 : (1 << n) - 1;
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130 }
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131
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132 @Override
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133 public Constant encodeDeoptActionAndReason(DeoptimizationAction action, DeoptimizationReason reason, int debugId) {
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134 HotSpotVMConfig config = runtime.getConfig();
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135 int actionValue = convertDeoptAction(action);
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136 int reasonValue = convertDeoptReason(reason);
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137 int debugValue = debugId & intMaskRight(config.deoptimizationDebugIdBits);
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138 Constant c = Constant.forInt(~((debugValue << config.deoptimizationDebugIdShift) | (reasonValue << config.deoptimizationReasonShift) | (actionValue << config.deoptimizationActionShift)));
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139 assert c.asInt() < 0;
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140 return c;
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141 }
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142
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143 public DeoptimizationReason decodeDeoptReason(Constant constant) {
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144 HotSpotVMConfig config = runtime.getConfig();
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145 int reasonValue = ((~constant.asInt()) >> config.deoptimizationReasonShift) & intMaskRight(config.deoptimizationReasonBits);
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146 DeoptimizationReason reason = convertDeoptReason(reasonValue);
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147 return reason;
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148 }
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149
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150 public DeoptimizationAction decodeDeoptAction(Constant constant) {
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151 HotSpotVMConfig config = runtime.getConfig();
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152 int actionValue = ((~constant.asInt()) >> config.deoptimizationActionShift) & intMaskRight(config.deoptimizationActionBits);
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153 DeoptimizationAction action = convertDeoptAction(actionValue);
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154 return action;
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155 }
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156
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parents: 13641
diff changeset
157 public int decodeDebugId(Constant constant) {
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158 HotSpotVMConfig config = runtime.getConfig();
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159 return ((~constant.asInt()) >> config.deoptimizationDebugIdShift) & intMaskRight(config.deoptimizationDebugIdBits);
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160 }
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161
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162 public int convertDeoptAction(DeoptimizationAction action) {
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163 HotSpotVMConfig config = runtime.getConfig();
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164 switch (action) {
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165 case None:
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166 return config.deoptActionNone;
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167 case RecompileIfTooManyDeopts:
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168 return config.deoptActionMaybeRecompile;
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169 case InvalidateReprofile:
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170 return config.deoptActionReinterpret;
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171 case InvalidateRecompile:
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172 return config.deoptActionMakeNotEntrant;
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173 case InvalidateStopCompiling:
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174 return config.deoptActionMakeNotCompilable;
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175 default:
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176 throw GraalInternalError.shouldNotReachHere();
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177 }
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178 }
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179
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180 public DeoptimizationAction convertDeoptAction(int action) {
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181 HotSpotVMConfig config = runtime.getConfig();
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182 if (action == config.deoptActionNone) {
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183 return DeoptimizationAction.None;
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184 }
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185 if (action == config.deoptActionMaybeRecompile) {
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186 return DeoptimizationAction.RecompileIfTooManyDeopts;
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187 }
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188 if (action == config.deoptActionReinterpret) {
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189 return DeoptimizationAction.InvalidateReprofile;
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190 }
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191 if (action == config.deoptActionMakeNotEntrant) {
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192 return DeoptimizationAction.InvalidateRecompile;
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193 }
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194 if (action == config.deoptActionMakeNotCompilable) {
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195 return DeoptimizationAction.InvalidateStopCompiling;
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196 }
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197 throw GraalInternalError.shouldNotReachHere();
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198 }
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199
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200 public int convertDeoptReason(DeoptimizationReason reason) {
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201 HotSpotVMConfig config = runtime.getConfig();
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202 switch (reason) {
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203 case None:
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204 return config.deoptReasonNone;
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205 case NullCheckException:
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206 return config.deoptReasonNullCheck;
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207 case BoundsCheckException:
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208 return config.deoptReasonRangeCheck;
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209 case ClassCastException:
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210 return config.deoptReasonClassCheck;
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211 case ArrayStoreException:
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212 return config.deoptReasonArrayCheck;
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213 case UnreachedCode:
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214 return config.deoptReasonUnreached0;
12429
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parents:
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215 case TypeCheckedInliningViolated:
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216 return config.deoptReasonTypeCheckInlining;
12429
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217 case OptimizedTypeCheckViolated:
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218 return config.deoptReasonOptimizedTypeCheck;
12429
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parents:
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219 case NotCompiledExceptionHandler:
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220 return config.deoptReasonNotCompiledExceptionHandler;
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parents:
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221 case Unresolved:
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222 return config.deoptReasonUnresolved;
12429
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parents:
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223 case JavaSubroutineMismatch:
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224 return config.deoptReasonJsrMismatch;
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225 case ArithmeticException:
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226 return config.deoptReasonDiv0Check;
12429
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parents:
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227 case RuntimeConstraint:
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228 return config.deoptReasonConstraint;
12429
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parents:
diff changeset
229 case LoopLimitCheck:
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diff changeset
230 return config.deoptReasonLoopLimitCheck;
13155
1dd9aa5a9ee5 Deoptimization reason for failed aliasing assumptions.
Roland Schatz <roland.schatz@oracle.com>
parents: 12757
diff changeset
231 case Aliasing:
13257
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diff changeset
232 return config.deoptReasonAliasing;
16535
ada0a7729b6f Truffle: introduce debug option to print the stack trace when transferring to the interpreter
Andreas Woess <andreas.woess@jku.at>
parents: 15909
diff changeset
233 case TransferToInterpreter:
ada0a7729b6f Truffle: introduce debug option to print the stack trace when transferring to the interpreter
Andreas Woess <andreas.woess@jku.at>
parents: 15909
diff changeset
234 return config.deoptReasonTransferToInterpreter;
12429
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parents:
diff changeset
235 default:
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parents:
diff changeset
236 throw GraalInternalError.shouldNotReachHere();
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parents:
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237 }
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parents:
diff changeset
238 }
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diff changeset
239
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diff changeset
240 public DeoptimizationReason convertDeoptReason(int reason) {
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diff changeset
241 HotSpotVMConfig config = runtime.getConfig();
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diff changeset
242 if (reason == config.deoptReasonNone) {
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diff changeset
243 return DeoptimizationReason.None;
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244 }
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diff changeset
245 if (reason == config.deoptReasonNullCheck) {
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diff changeset
246 return DeoptimizationReason.NullCheckException;
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247 }
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248 if (reason == config.deoptReasonRangeCheck) {
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diff changeset
249 return DeoptimizationReason.BoundsCheckException;
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250 }
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diff changeset
251 if (reason == config.deoptReasonClassCheck) {
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252 return DeoptimizationReason.ClassCastException;
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253 }
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diff changeset
254 if (reason == config.deoptReasonArrayCheck) {
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diff changeset
255 return DeoptimizationReason.ArrayStoreException;
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diff changeset
256 }
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diff changeset
257 if (reason == config.deoptReasonUnreached0) {
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diff changeset
258 return DeoptimizationReason.UnreachedCode;
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259 }
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diff changeset
260 if (reason == config.deoptReasonTypeCheckInlining) {
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diff changeset
261 return DeoptimizationReason.TypeCheckedInliningViolated;
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262 }
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diff changeset
263 if (reason == config.deoptReasonOptimizedTypeCheck) {
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diff changeset
264 return DeoptimizationReason.OptimizedTypeCheckViolated;
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265 }
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266 if (reason == config.deoptReasonNotCompiledExceptionHandler) {
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diff changeset
267 return DeoptimizationReason.NotCompiledExceptionHandler;
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diff changeset
268 }
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diff changeset
269 if (reason == config.deoptReasonUnresolved) {
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diff changeset
270 return DeoptimizationReason.Unresolved;
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diff changeset
271 }
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diff changeset
272 if (reason == config.deoptReasonJsrMismatch) {
12484
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273 return DeoptimizationReason.JavaSubroutineMismatch;
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274 }
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275 if (reason == config.deoptReasonDiv0Check) {
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276 return DeoptimizationReason.ArithmeticException;
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277 }
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278 if (reason == config.deoptReasonConstraint) {
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279 return DeoptimizationReason.RuntimeConstraint;
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280 }
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281 if (reason == config.deoptReasonLoopLimitCheck) {
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282 return DeoptimizationReason.LoopLimitCheck;
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283 }
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284 if (reason == config.deoptReasonAliasing) {
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parents: 12757
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285 return DeoptimizationReason.Aliasing;
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286 }
16535
ada0a7729b6f Truffle: introduce debug option to print the stack trace when transferring to the interpreter
Andreas Woess <andreas.woess@jku.at>
parents: 15909
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287 if (reason == config.deoptReasonTransferToInterpreter) {
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parents: 15909
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288 return DeoptimizationReason.TransferToInterpreter;
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289 }
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290 throw GraalInternalError.shouldNotReachHere(Integer.toHexString(reason));
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291 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 13677
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292
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293 @Override
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294 public long getMemorySize(Constant constant) {
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295 if (constant.getKind() == Kind.Object) {
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296 HotSpotResolvedObjectType lookupJavaType = (HotSpotResolvedObjectType) this.lookupJavaType(constant);
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297
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298 if (lookupJavaType == null) {
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299 return 0;
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300 } else {
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301 if (lookupJavaType.isArray()) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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302 // TODO(tw): Add compressed pointer support.
15018
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents: 14559
diff changeset
303 int length = Array.getLength(HotSpotObjectConstant.asObject(constant));
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304 ResolvedJavaType elementType = lookupJavaType.getComponentType();
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305 Kind elementKind = elementType.getKind();
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306 final int headerSize = HotSpotGraalRuntime.getArrayBaseOffset(elementKind);
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883fbd3e06e0 Make size of PlatformKind overridable by VM specific code.
Roland Schatz <roland.schatz@oracle.com>
parents: 14157
diff changeset
307 int sizeOfElement = HotSpotGraalRuntime.runtime().getTarget().getSizeInBytes(elementKind);
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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308 int alignment = HotSpotGraalRuntime.runtime().getTarget().wordSize;
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309 int log2ElementSize = CodeUtil.log2(sizeOfElement);
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310 return NewObjectSnippets.computeArrayAllocationSize(length, alignment, headerSize, log2ElementSize);
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 13677
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311 }
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312 return lookupJavaType.instanceSize();
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parents: 13677
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313 }
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parents: 13677
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314 } else {
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315 return constant.getKind().getByteCount();
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 13677
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316 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 13677
diff changeset
317 }
12429
5124eeec1a7b split HotSpotRuntime into separate provider implementations
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
318 }