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annotate graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotMetaAccessProvider.java @ 21780:3d15183f3c93

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Introduce Compiler interface in jvmci. Use it from jvmci.hotspot.CompilationTask
author Gilles Duboscq <gilles.m.duboscq@oracle.com>
date Wed, 03 Jun 2015 15:47:54 +0200
parents 6166968c6359
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2011, 2015, 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.jvmci.hotspot;
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24
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25 import static com.oracle.jvmci.common.UnsafeAccess.*;
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26 import static com.oracle.jvmci.hotspot.HotSpotResolvedJavaType.*;
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27 import static com.oracle.jvmci.hotspot.HotSpotResolvedObjectTypeImpl.*;
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28
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29 import java.lang.reflect.*;
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30
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31 import com.oracle.jvmci.code.*;
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32 import com.oracle.jvmci.common.*;
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33 import com.oracle.jvmci.meta.*;
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34
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35 // JaCoCo Exclude
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36
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37 /**
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38 * HotSpot implementation of {@link MetaAccessProvider}.
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39 */
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40 public class HotSpotMetaAccessProvider implements MetaAccessProvider, HotSpotProxified {
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41
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42 protected final HotSpotJVMCIRuntimeProvider runtime;
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43
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44 public HotSpotMetaAccessProvider(HotSpotJVMCIRuntimeProvider runtime) {
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45 this.runtime = runtime;
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46 }
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47
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48 public ResolvedJavaType lookupJavaType(Class<?> clazz) {
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49 if (clazz == null) {
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50 throw new IllegalArgumentException("Class parameter was null");
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51 }
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52 return runtime.fromClass(clazz);
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53 }
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54
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55 public HotSpotResolvedObjectType lookupJavaType(JavaConstant constant) {
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56 if (constant.isNull() || !(constant instanceof HotSpotObjectConstant)) {
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57 return null;
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58 }
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59 return ((HotSpotObjectConstant) constant).getType();
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60 }
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61
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62 public Signature parseMethodDescriptor(String signature) {
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63 return new HotSpotSignature(runtime, signature);
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64 }
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65
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66 /**
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67 * {@link Field} object of {@link Method#slot}.
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68 */
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69 @SuppressWarnings("javadoc") private Field reflectionMethodSlot = getReflectionSlotField(Method.class);
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70
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71 /**
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72 * {@link Field} object of {@link Constructor#slot}.
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73 */
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74 @SuppressWarnings("javadoc") private Field reflectionConstructorSlot = getReflectionSlotField(Constructor.class);
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75
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76 private static Field getReflectionSlotField(Class<?> reflectionClass) {
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77 try {
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78 Field field = reflectionClass.getDeclaredField("slot");
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79 field.setAccessible(true);
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80 return field;
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81 } catch (NoSuchFieldException | SecurityException e) {
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82 throw new JVMCIError(e);
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83 }
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84 }
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85
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86 public ResolvedJavaMethod lookupJavaMethod(Executable reflectionMethod) {
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87 try {
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88 Class<?> holder = reflectionMethod.getDeclaringClass();
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89 Field slotField = reflectionMethod instanceof Constructor ? reflectionConstructorSlot : reflectionMethodSlot;
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90 final int slot = slotField.getInt(reflectionMethod);
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91 final long metaspaceMethod = runtime.getCompilerToVM().getMetaspaceMethod(holder, slot);
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92 return HotSpotResolvedJavaMethodImpl.fromMetaspace(metaspaceMethod);
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93 } catch (IllegalArgumentException | IllegalAccessException e) {
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94 throw new JVMCIError(e);
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95 }
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96 }
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97
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98 public ResolvedJavaField lookupJavaField(Field reflectionField) {
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99 String name = reflectionField.getName();
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100 Class<?> fieldHolder = reflectionField.getDeclaringClass();
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101 Class<?> fieldType = reflectionField.getType();
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102 // java.lang.reflect.Field's modifiers should be enough here since VM internal modifier bits
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103 // are not used (yet).
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104 final int modifiers = reflectionField.getModifiers();
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105 final long offset = Modifier.isStatic(modifiers) ? unsafe.staticFieldOffset(reflectionField) : unsafe.objectFieldOffset(reflectionField);
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106
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107 HotSpotResolvedObjectType holder = fromObjectClass(fieldHolder);
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108 JavaType type = fromClass(fieldType);
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109
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110 if (offset != -1) {
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111 HotSpotResolvedObjectType resolved = holder;
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112 return resolved.createField(name, type, offset, modifiers);
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113 } else {
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114 throw new JVMCIError("unresolved field %s", reflectionField);
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115 }
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116 }
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117
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118 private static int intMaskRight(int n) {
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119 assert n <= 32;
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120 return n == 32 ? -1 : (1 << n) - 1;
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121 }
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122
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123 @Override
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124 public JavaConstant encodeDeoptActionAndReason(DeoptimizationAction action, DeoptimizationReason reason, int debugId) {
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125 HotSpotVMConfig config = runtime.getConfig();
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126 int actionValue = convertDeoptAction(action);
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127 int reasonValue = convertDeoptReason(reason);
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128 int debugValue = debugId & intMaskRight(config.deoptimizationDebugIdBits);
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129 JavaConstant c = JavaConstant.forInt(~((debugValue << config.deoptimizationDebugIdShift) | (reasonValue << config.deoptimizationReasonShift) | (actionValue << config.deoptimizationActionShift)));
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130 assert c.asInt() < 0;
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131 return c;
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132 }
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133
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134 public DeoptimizationReason decodeDeoptReason(JavaConstant constant) {
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135 HotSpotVMConfig config = runtime.getConfig();
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136 int reasonValue = ((~constant.asInt()) >> config.deoptimizationReasonShift) & intMaskRight(config.deoptimizationReasonBits);
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137 DeoptimizationReason reason = convertDeoptReason(reasonValue);
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138 return reason;
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139 }
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140
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141 public DeoptimizationAction decodeDeoptAction(JavaConstant constant) {
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142 HotSpotVMConfig config = runtime.getConfig();
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143 int actionValue = ((~constant.asInt()) >> config.deoptimizationActionShift) & intMaskRight(config.deoptimizationActionBits);
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144 DeoptimizationAction action = convertDeoptAction(actionValue);
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145 return action;
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146 }
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147
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148 public int decodeDebugId(JavaConstant constant) {
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149 HotSpotVMConfig config = runtime.getConfig();
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150 return ((~constant.asInt()) >> config.deoptimizationDebugIdShift) & intMaskRight(config.deoptimizationDebugIdBits);
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151 }
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152
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153 public int convertDeoptAction(DeoptimizationAction action) {
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154 HotSpotVMConfig config = runtime.getConfig();
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155 switch (action) {
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156 case None:
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157 return config.deoptActionNone;
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158 case RecompileIfTooManyDeopts:
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159 return config.deoptActionMaybeRecompile;
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160 case InvalidateReprofile:
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161 return config.deoptActionReinterpret;
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162 case InvalidateRecompile:
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163 return config.deoptActionMakeNotEntrant;
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164 case InvalidateStopCompiling:
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165 return config.deoptActionMakeNotCompilable;
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166 default:
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167 throw new JVMCIError("%s", action);
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168 }
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169 }
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170
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171 public DeoptimizationAction convertDeoptAction(int action) {
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172 HotSpotVMConfig config = runtime.getConfig();
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173 if (action == config.deoptActionNone) {
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174 return DeoptimizationAction.None;
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175 }
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176 if (action == config.deoptActionMaybeRecompile) {
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177 return DeoptimizationAction.RecompileIfTooManyDeopts;
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178 }
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179 if (action == config.deoptActionReinterpret) {
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180 return DeoptimizationAction.InvalidateReprofile;
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181 }
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182 if (action == config.deoptActionMakeNotEntrant) {
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183 return DeoptimizationAction.InvalidateRecompile;
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184 }
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185 if (action == config.deoptActionMakeNotCompilable) {
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186 return DeoptimizationAction.InvalidateStopCompiling;
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187 }
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188 throw new JVMCIError("%d", action);
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189 }
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190
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191 public int convertDeoptReason(DeoptimizationReason reason) {
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192 HotSpotVMConfig config = runtime.getConfig();
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193 switch (reason) {
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194 case None:
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195 return config.deoptReasonNone;
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196 case NullCheckException:
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197 return config.deoptReasonNullCheck;
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198 case BoundsCheckException:
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199 return config.deoptReasonRangeCheck;
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200 case ClassCastException:
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201 return config.deoptReasonClassCheck;
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202 case ArrayStoreException:
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203 return config.deoptReasonArrayCheck;
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204 case UnreachedCode:
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205 return config.deoptReasonUnreached0;
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206 case TypeCheckedInliningViolated:
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207 return config.deoptReasonTypeCheckInlining;
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208 case OptimizedTypeCheckViolated:
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209 return config.deoptReasonOptimizedTypeCheck;
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210 case NotCompiledExceptionHandler:
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211 return config.deoptReasonNotCompiledExceptionHandler;
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212 case Unresolved:
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213 return config.deoptReasonUnresolved;
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214 case JavaSubroutineMismatch:
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215 return config.deoptReasonJsrMismatch;
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216 case ArithmeticException:
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217 return config.deoptReasonDiv0Check;
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218 case RuntimeConstraint:
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219 return config.deoptReasonConstraint;
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220 case LoopLimitCheck:
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221 return config.deoptReasonLoopLimitCheck;
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Roland Schatz <roland.schatz@oracle.com>
parents: 12757
diff changeset
222 case Aliasing:
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223 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
224 case TransferToInterpreter:
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Andreas Woess <andreas.woess@jku.at>
parents: 15909
diff changeset
225 return config.deoptReasonTransferToInterpreter;
12429
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diff changeset
226 default:
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227 throw new JVMCIError("%s", reason);
12429
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228 }
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229 }
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230
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diff changeset
231 public DeoptimizationReason convertDeoptReason(int reason) {
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232 HotSpotVMConfig config = runtime.getConfig();
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233 if (reason == config.deoptReasonNone) {
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234 return DeoptimizationReason.None;
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235 }
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236 if (reason == config.deoptReasonNullCheck) {
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237 return DeoptimizationReason.NullCheckException;
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238 }
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239 if (reason == config.deoptReasonRangeCheck) {
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240 return DeoptimizationReason.BoundsCheckException;
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241 }
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242 if (reason == config.deoptReasonClassCheck) {
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243 return DeoptimizationReason.ClassCastException;
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244 }
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245 if (reason == config.deoptReasonArrayCheck) {
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246 return DeoptimizationReason.ArrayStoreException;
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247 }
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248 if (reason == config.deoptReasonUnreached0) {
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249 return DeoptimizationReason.UnreachedCode;
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250 }
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251 if (reason == config.deoptReasonTypeCheckInlining) {
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252 return DeoptimizationReason.TypeCheckedInliningViolated;
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253 }
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254 if (reason == config.deoptReasonOptimizedTypeCheck) {
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255 return DeoptimizationReason.OptimizedTypeCheckViolated;
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256 }
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257 if (reason == config.deoptReasonNotCompiledExceptionHandler) {
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258 return DeoptimizationReason.NotCompiledExceptionHandler;
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259 }
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diff changeset
260 if (reason == config.deoptReasonUnresolved) {
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261 return DeoptimizationReason.Unresolved;
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262 }
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263 if (reason == config.deoptReasonJsrMismatch) {
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diff changeset
264 return DeoptimizationReason.JavaSubroutineMismatch;
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265 }
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266 if (reason == config.deoptReasonDiv0Check) {
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267 return DeoptimizationReason.ArithmeticException;
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268 }
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269 if (reason == config.deoptReasonConstraint) {
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270 return DeoptimizationReason.RuntimeConstraint;
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271 }
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272 if (reason == config.deoptReasonLoopLimitCheck) {
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273 return DeoptimizationReason.LoopLimitCheck;
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274 }
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275 if (reason == config.deoptReasonAliasing) {
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276 return DeoptimizationReason.Aliasing;
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277 }
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278 if (reason == config.deoptReasonTransferToInterpreter) {
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279 return DeoptimizationReason.TransferToInterpreter;
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280 }
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281 throw new JVMCIError("%x", reason);
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282 }
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283
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284 @Override
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285 public long getMemorySize(JavaConstant constant) {
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286 if (constant.getKind() == Kind.Object) {
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287 HotSpotResolvedObjectType lookupJavaType = lookupJavaType(constant);
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288
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289 if (lookupJavaType == null) {
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290 return 0;
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291 } else {
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292 if (lookupJavaType.isArray()) {
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293 // TODO(tw): Add compressed pointer support.
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294 int length = Array.getLength(((HotSpotObjectConstantImpl) constant).object());
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295 ResolvedJavaType elementType = lookupJavaType.getComponentType();
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296 Kind elementKind = elementType.getKind();
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297 final int headerSize = runtime.getArrayBaseOffset(elementKind);
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298 TargetDescription target = runtime.getHostJVMCIBackend().getTarget();
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299 int sizeOfElement = target.getSizeInBytes(elementKind);
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300 int alignment = target.wordSize;
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301 int log2ElementSize = CodeUtil.log2(sizeOfElement);
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302 return computeArrayAllocationSize(length, alignment, headerSize, log2ElementSize);
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303 }
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304 return lookupJavaType.instanceSize();
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305 }
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306 } else {
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307 return constant.getKind().getByteCount();
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308 }
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309 }
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310
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311 /**
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312 * Computes the size of the memory chunk allocated for an array. This size accounts for the
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313 * array header size, body size and any padding after the last element to satisfy object
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314 * alignment requirements.
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315 *
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316 * @param length the number of elements in the array
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317 * @param alignment the object alignment requirement
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318 * @param headerSize the size of the array header
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319 * @param log2ElementSize log2 of the size of an element in the array
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320 */
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321 public static int computeArrayAllocationSize(int length, int alignment, int headerSize, int log2ElementSize) {
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322 int size = (length << log2ElementSize) + headerSize + (alignment - 1);
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323 int mask = ~(alignment - 1);
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324 return size & mask;
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325 }
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parents:
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326 }