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annotate graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/CompilerToVM.java @ 21551:5324104ac4f3

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moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 26 May 2015 17:13:37 +0200
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21551
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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1 /*
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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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 *
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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5 * This code is free software; you can redistribute it and/or modify it
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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6 * under the terms of the GNU General Public License version 2 only, as
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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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
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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12 * version 2 for more details (a copy is included in the LICENSE file that
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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13 * accompanied this code).
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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14 *
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15 * You should have received a copy of the GNU General Public License version
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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16 * 2 along with this work; if not, write to the Free Software Foundation,
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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20 * or visit www.oracle.com if you need additional information or have any
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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21 * questions.
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22 */
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23
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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24 package com.oracle.jvmci.hotspot;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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25
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26 import sun.misc.*;
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27
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28 import com.oracle.graal.api.code.*;
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29 import com.oracle.graal.api.meta.*;
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30 import com.oracle.graal.hotspotvmconfig.*;
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31
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32 /**
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33 * Calls from Java into HotSpot.
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34 */
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35 public interface CompilerToVM {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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36
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37 /**
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38 * Copies the original bytecode of a given method into a new byte array and returns it.
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39 *
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40 * @param metaspaceMethod the metaspace Method object
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41 * @return a new byte array containing the original bytecode
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42 */
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43 byte[] getBytecode(long metaspaceMethod);
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44
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45 int exceptionTableLength(long metaspaceMethod);
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46
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47 long exceptionTableStart(long metaspaceMethod);
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48
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49 /**
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50 * Determines if a given metaspace Method object has balanced monitors.
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51 *
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52 * @param metaspaceMethod the metaspace Method object to query
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53 * @return true if the method has balanced monitors
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54 */
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55 boolean hasBalancedMonitors(long metaspaceMethod);
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56
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57 /**
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58 * Determines if a given metaspace Method can be inlined. A method may not be inlinable for a
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59 * number of reasons such as:
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60 * <ul>
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61 * <li>a CompileOracle directive may prevent inlining or compilation of methods</li>
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62 * <li>the method may have a bytecode breakpoint set</li>
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63 * <li>the method may have other bytecode features that require special handling by the VM</li>
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64 * </ul>
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65 *
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66 * @param metaspaceMethod the metaspace Method object to query
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67 * @return true if the method can be inlined
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68 */
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69 boolean canInlineMethod(long metaspaceMethod);
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70
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71 /**
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72 * Determines if a given metaspace Method should be inlined at any cost. This could be because:
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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73 * <ul>
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74 * <li>a CompileOracle directive may forces inlining of this methods</li>
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75 * <li>an annotation forces inlining of this method</li>
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76 * </ul>
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77 *
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78 * @param metaspaceMethod the metaspace Method object to query
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79 * @return true if the method should be inlined
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80 */
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81 boolean shouldInlineMethod(long metaspaceMethod);
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82
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83 /**
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84 * Used to implement {@link ResolvedJavaType#findUniqueConcreteMethod(ResolvedJavaMethod)}.
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85 *
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86 * @param metaspaceMethod the metaspace Method on which to based the search
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87 * @param actualHolderMetaspaceKlass the best known type of receiver
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88 * @return the metaspace Method result or 0 is there is no unique concrete method for
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89 * {@code metaspaceMethod}
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90 */
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91 long findUniqueConcreteMethod(long actualHolderMetaspaceKlass, long metaspaceMethod);
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92
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93 /**
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94 * Returns the implementor for the given interface class, if there is a single implementor.
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95 *
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96 * @param metaspaceKlass the metaspace klass to get the implementor for
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97 * @return the implementor as metaspace klass pointer if there is a single implementor, null if
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98 * there is no implementor, or the input metaspace klass pointer ({@code metaspaceKlass}
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99 * ) itself if there is more than one implementor.
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100 */
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101 long getKlassImplementor(long metaspaceKlass);
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102
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103 /**
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104 * Determines if a given metaspace method is ignored by security stack walks.
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105 *
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106 * @param metaspaceMethod the metaspace Method object
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107 * @return true if the method is ignored
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108 */
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109 boolean methodIsIgnoredBySecurityStackWalk(long metaspaceMethod);
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110
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111 /**
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112 * Converts a name to a metaspace klass.
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113 *
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114 * @param name a well formed Java type in {@linkplain JavaType#getName() internal} format
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115 * @param accessingClass the context of resolution (must not be null)
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116 * @param resolve force resolution to a {@link ResolvedJavaType}. If true, this method will
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117 * either return a {@link ResolvedJavaType} or throw an exception
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118 * @return a metaspace klass for {@code name}
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119 * @throws LinkageError if {@code resolve == true} and the resolution failed
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120 */
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121 long lookupType(String name, Class<?> accessingClass, boolean resolve);
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122
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123 Object resolveConstantInPool(long metaspaceConstantPool, int cpi);
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124
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125 Object resolvePossiblyCachedConstantInPool(long metaspaceConstantPool, int cpi);
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126
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127 int lookupNameAndTypeRefIndexInPool(long metaspaceConstantPool, int cpi);
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128
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129 String lookupNameRefInPool(long metaspaceConstantPool, int cpi);
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130
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131 String lookupSignatureRefInPool(long metaspaceConstantPool, int cpi);
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132
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133 int lookupKlassRefIndexInPool(long metaspaceConstantPool, int cpi);
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134
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135 long constantPoolKlassAt(long metaspaceConstantPool, int cpi);
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136
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137 /**
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138 * Looks up a class entry in a constant pool.
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139 *
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140 * @param metaspaceConstantPool metaspace constant pool pointer
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141 * @param cpi constant pool index
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142 * @return a metaspace Klass for a resolved method entry, a metaspace Symbol otherwise (with
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143 * tagging)
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144 */
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145 long lookupKlassInPool(long metaspaceConstantPool, int cpi);
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146
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147 /**
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148 * Looks up a method entry in a constant pool.
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149 *
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150 * @param metaspaceConstantPool metaspace constant pool pointer
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151 * @param cpi constant pool index
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152 * @return a metaspace Method for a resolved method entry, 0 otherwise
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153 */
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154 long lookupMethodInPool(long metaspaceConstantPool, int cpi, byte opcode);
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155
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156 /**
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157 * Looks up a field entry in a constant pool and attempts to resolve it. The values returned in
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158 * {@code info} are:
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159 *
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160 * <pre>
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161 * [(int) flags, // only valid if field is resolved
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162 * (int) offset] // only valid if field is resolved
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163 * </pre>
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164 *
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165 * @param metaspaceConstantPool metaspace constant pool pointer
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166 * @param cpi constant pool index
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167 * @param info an array in which the details of the field are returned
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168 * @return true if the field is resolved
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169 */
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170 long resolveField(long metaspaceConstantPool, int cpi, byte opcode, long[] info);
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171
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172 int constantPoolRemapInstructionOperandFromCache(long metaspaceConstantPool, int cpi);
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173
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174 Object lookupAppendixInPool(long metaspaceConstantPool, int cpi);
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175
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176 /**
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177 * Installs the result of a compilation into the code cache.
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178 *
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179 * @param compiledCode the result of a compilation
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180 * @param code the details of the installed CodeBlob are written to this object
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181 * @return the outcome of the installation which will be one of
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182 * {@link HotSpotVMConfig#codeInstallResultOk},
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183 * {@link HotSpotVMConfig#codeInstallResultCacheFull},
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184 * {@link HotSpotVMConfig#codeInstallResultCodeTooLarge},
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185 * {@link HotSpotVMConfig#codeInstallResultDependenciesFailed} or
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186 * {@link HotSpotVMConfig#codeInstallResultDependenciesInvalid}.
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187 */
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188 int installCode(HotSpotCompiledCode compiledCode, InstalledCode code, SpeculationLog speculationLog);
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189
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190 /**
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191 * Notifies the VM of statistics for a completed compilation.
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192 *
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193 * @param id the identifier of the compilation
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194 * @param method the method compiled
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195 * @param osr specifies if the compilation was for on-stack-replacement
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196 * @param processedBytecodes the number of bytecodes processed during the compilation, including
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197 * the bytecodes of all inlined methods
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198 * @param time the amount time spent compiling {@code method}
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199 * @param timeUnitsPerSecond the granularity of the units for the {@code time} value
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200 * @param installedCode the nmethod installed as a result of the compilation
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201 */
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202 void notifyCompilationStatistics(int id, HotSpotResolvedJavaMethod method, boolean osr, int processedBytecodes, long time, long timeUnitsPerSecond, InstalledCode installedCode);
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203
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204 void resetCompilationStatistics();
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205
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206 void initializeConfiguration(HotSpotVMConfig config);
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207
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208 long resolveMethod(long metaspaceKlassExactReceiver, long metaspaceMethod, long metaspaceKlassCaller);
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209
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210 long getClassInitializer(long metaspaceKlass);
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211
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212 boolean hasFinalizableSubclass(long metaspaceKlass);
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213
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214 /**
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215 * Gets the metaspace Method object corresponding to a given {@link Class} object and slot
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216 * number.
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217 *
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218 * @param holder method holder
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219 * @param slot slot number of the method
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220 * @return the metaspace Method
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221 */
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222 long getMetaspaceMethod(Class<?> holder, int slot);
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223
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224 long getMaxCallTargetOffset(long address);
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225
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226 String disassembleCodeBlob(long codeBlob);
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227
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228 StackTraceElement getStackTraceElement(long metaspaceMethod, int bci);
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229
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230 Object executeCompiledMethod(Object arg1, Object arg2, Object arg3, InstalledCode hotspotInstalledCode) throws InvalidInstalledCodeException;
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231
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232 Object executeCompiledMethodVarargs(Object[] args, InstalledCode hotspotInstalledCode) throws InvalidInstalledCodeException;
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233
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234 long[] getLineNumberTable(long metaspaceMethod);
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235
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236 long getLocalVariableTableStart(long metaspaceMethod);
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237
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238 int getLocalVariableTableLength(long metaspaceMethod);
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239
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240 String getFileName(HotSpotResolvedJavaType method);
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241
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242 Class<?> getJavaMirror(long metaspaceKlass);
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243
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244 long readUnsafeKlassPointer(Object o);
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245
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246 /**
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247 * Reads an object pointer within a VM data structure. That is, any {@link HotSpotVMField} whose
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248 * {@link HotSpotVMField#type() type} is {@code "oop"} (e.g.,
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249 * {@code ArrayKlass::_component_mirror}, {@code Klass::_java_mirror},
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250 * {@code JavaThread::_threadObj}).
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251 *
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252 * Note that {@link Unsafe#getObject(Object, long)} cannot be used for this since it does a
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253 * {@code narrowOop} read if the VM is using compressed oops whereas oops within VM data
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254 * structures are (currently) always uncompressed.
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255 *
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256 * @param address address of an oop field within a VM data structure
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257 */
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258 Object readUncompressedOop(long address);
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259
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260 void doNotInlineOrCompile(long metaspaceMethod);
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261
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262 /**
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263 * Invalidates the profiling information and restarts profiling upon the next invocation.
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264 *
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265 * @param metaspaceMethod the metaspace Method object
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266 */
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267 void reprofile(long metaspaceMethod);
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268
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269 void invalidateInstalledCode(InstalledCode hotspotInstalledCode);
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270
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271 /**
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272 * Collects the current values of all Graal benchmark counters, summed up over all threads.
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273 */
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274 long[] collectCounters();
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275
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276 boolean isMature(long metaspaceMethodData);
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277
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278 /**
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279 * Generate a unique id to identify the result of the compile.
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280 */
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281 int allocateCompileId(long metaspaceMethod, int entryBCI);
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282
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283 /**
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284 * Gets the names of the supported GPU architectures.
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285 *
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286 * @return a comma separated list of names
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287 */
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288 String getGPUs();
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289
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290 /**
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291 *
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292 * @param metaspaceMethod the method to check
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293 * @param entryBCI
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294 * @param level the compilation level
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295 * @return true if the {@code metaspaceMethod} has code for {@code level}
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296 */
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297 boolean hasCompiledCodeForOSR(long metaspaceMethod, int entryBCI, int level);
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298
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299 /**
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300 * Fetch the time stamp used for printing inside hotspot. It's relative to VM start to that all
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301 * events can be ordered.
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302 *
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303 * @return milliseconds since VM start
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304 */
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305 long getTimeStamp();
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306
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307 /**
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308 * Gets the value of a metaspace {@code Symbol} as a String.
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309 *
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310 * @param metaspaceSymbol
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311 */
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312 String getSymbol(long metaspaceSymbol);
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313
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314 /**
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315 * Looks for the next Java stack frame with the given method.
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316 *
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317 * @param frame the starting point of the search, where {@code null} refers to the topmost frame
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318 * @param methods the metaspace methods to look for, where {@code null} means that any frame is
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319 * returned
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320 * @return the frame, or {@code null} if the end of the stack was reached during the search
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321 */
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322 HotSpotStackFrameReference getNextStackFrame(HotSpotStackFrameReference frame, long[] methods, int initialSkip);
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323
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324 /**
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325 * Materialized all virtual objects within the given stack frame and update the locals within
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326 * the given stackFrame object.
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327 *
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328 * @param invalidate if {@code true}, the compiled method for the stack frame will be
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329 * invalidated.
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330 */
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331 void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
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332
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333 void resolveInvokeDynamic(long metaspaceConstantPool, int index);
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334
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335 int getVtableIndexForInterface(long metaspaceKlass, long metaspaceMethod);
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336
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337 boolean shouldDebugNonSafepoints();
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338
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339 void writeDebugOutput(byte[] bytes, int offset, int length);
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340
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341 void flushDebugOutput();
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342 }