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annotate src/share/vm/graal/graalCompiler.cpp @ 16014:c1a47bf45b66

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do not start/stop Graal compilation queue if -XX:-UseGraalCompilationQueue
author Doug Simon <doug.simon@oracle.com>
date Wed, 04 Jun 2014 15:58:04 +0200
parents 66a9286203a2
children e54507c88a93
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23
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24 #include "precompiled.hpp"
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25 #include "memory/oopFactory.hpp"
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26 #include "runtime/javaCalls.hpp"
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27 #include "graal/graalCompiler.hpp"
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28 #include "graal/graalEnv.hpp"
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29 #include "graal/graalRuntime.hpp"
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30 #include "runtime/compilationPolicy.hpp"
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31 #include "runtime/globals_extension.hpp"
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32
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33 GraalCompiler* GraalCompiler::_instance = NULL;
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34
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35 GraalCompiler::GraalCompiler() : AbstractCompiler(graal) {
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36 #ifdef COMPILERGRAAL
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37 _bootstrapping = false;
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38 #endif
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39 assert(_instance == NULL, "only one instance allowed");
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40 _instance = this;
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41 }
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42
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43 // Initialization
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44 void GraalCompiler::initialize() {
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45 #ifdef COMPILERGRAAL
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46 if (!UseCompiler || !should_perform_init()) {
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47 return;
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48 }
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49
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50 BufferBlob* buffer_blob = GraalRuntime::initialize_buffer_blob();
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51 if (!UseGraalCompilationQueue) {
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52 // This path is used for initialization both by the native queue and the graal queue
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53 // but set_state acquires a lock which might not be safe during JVM_CreateJavaVM, so
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54 // only update the state flag for the native queue.
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55 if (buffer_blob == NULL) {
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56 set_state(failed);
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57 } else {
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58 set_state(initialized);
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59 }
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60 }
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62 {
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63 HandleMark hm;
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64
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65 _bootstrapping = UseGraalCompilationQueue && (FLAG_IS_DEFAULT(BootstrapGraal) ? !TieredCompilation : BootstrapGraal);
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67 if (UseGraalCompilationQueue) {
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68 start_compilation_queue();
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69 }
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70
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71 // Graal is considered as application code so we need to
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72 // stop the VM deferring compilation now.
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73 CompilationPolicy::completed_vm_startup();
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74
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75 if (_bootstrapping) {
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76 // Avoid -Xcomp and -Xbatch problems by turning on interpreter and background compilation for bootstrapping.
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77 FlagSetting a(UseInterpreter, true);
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78 FlagSetting b(BackgroundCompilation, true);
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79 #ifndef PRODUCT
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80 // Turn off CompileTheWorld during bootstrap so that a counter overflow event
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81 // triggers further compilation (see NonTieredCompPolicy::event()) hence
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82 // allowing a complete bootstrap
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83 FlagSetting c(CompileTheWorld, false);
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84 #endif
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85 bootstrap();
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86 }
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87
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88 #ifndef PRODUCT
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89 if (CompileTheWorld) {
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90 compile_the_world();
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91 }
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92 #endif
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93 }
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94 #endif // COMPILERGRAAL
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95 }
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96
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97 #ifdef COMPILERGRAAL
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98 void GraalCompiler::start_compilation_queue() {
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99 JavaThread* THREAD = JavaThread::current();
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100 HandleMark hm(THREAD);
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101 TempNewSymbol name = SymbolTable::new_symbol("com/oracle/graal/hotspot/CompilationQueue", THREAD);
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102 KlassHandle klass = GraalRuntime::load_required_class(name);
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103 NoGraalCompilationScheduling ngcs(THREAD);
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104 klass->initialize(THREAD);
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105 GUARANTEE_NO_PENDING_EXCEPTION("Error while calling start_compilation_queue");
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106 }
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107
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108
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109 void GraalCompiler::shutdown_compilation_queue() {
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110 JavaThread* THREAD = JavaThread::current();
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111 HandleMark hm(THREAD);
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112 TempNewSymbol name = SymbolTable::new_symbol("com/oracle/graal/hotspot/CompilationQueue", THREAD);
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113 KlassHandle klass = GraalRuntime::load_required_class(name);
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114 JavaValue result(T_VOID);
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115 JavaCallArguments args;
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116 JavaCalls::call_static(&result, klass, vmSymbols::shutdown_method_name(), vmSymbols::void_method_signature(), &args, THREAD);
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117 GUARANTEE_NO_PENDING_EXCEPTION("Error while calling shutdown_compilation_queue");
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118 }
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119
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120 void GraalCompiler::bootstrap() {
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121 JavaThread* THREAD = JavaThread::current();
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122 TempNewSymbol name = SymbolTable::new_symbol("com/oracle/graal/hotspot/CompilationQueue", THREAD);
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123 KlassHandle klass = GraalRuntime::load_required_class(name);
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124 JavaValue result(T_VOID);
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125 TempNewSymbol bootstrap = SymbolTable::new_symbol("bootstrap", THREAD);
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126 NoGraalCompilationScheduling ngcs(THREAD);
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127 JavaCalls::call_static(&result, klass, bootstrap, vmSymbols::void_method_signature(), THREAD);
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128 GUARANTEE_NO_PENDING_EXCEPTION("Error while calling bootstrap");
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129 }
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130
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131 void GraalCompiler::compile_method(methodHandle method, int entry_bci, CompileTask* task, jboolean blocking) {
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132 GRAAL_EXCEPTION_CONTEXT
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133
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134 bool is_osr = entry_bci != InvocationEntryBci;
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135 if (_bootstrapping && is_osr) {
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136 // no OSR compilations during bootstrap - the compiler is just too slow at this point,
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137 // and we know that there are no endless loops
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138 return;
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139 }
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140
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141 ResourceMark rm;
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142 JavaValue result(T_VOID);
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143 JavaCallArguments args;
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144 args.push_long((jlong) (address) method());
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145 args.push_int(entry_bci);
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146 args.push_long((jlong) (address) task);
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147 args.push_int(blocking);
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148 JavaCalls::call_static(&result, SystemDictionary::CompilationTask_klass(), vmSymbols::compileMetaspaceMethod_name(), vmSymbols::compileMetaspaceMethod_signature(), &args, THREAD);
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149 GUARANTEE_NO_PENDING_EXCEPTION("Error while calling compile_method");
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150 }
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151
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152
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153 // Compilation entry point for methods
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154 void GraalCompiler::compile_method(ciEnv* env, ciMethod* target, int entry_bci) {
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155 ShouldNotReachHere();
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156 }
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157
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158 void GraalCompiler::shutdown() {
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159 if (UseGraalCompilationQueue) {
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160 shutdown_compilation_queue();
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161 }
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162 }
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163
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164 // Print compilation timers and statistics
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165 void GraalCompiler::print_timers() {
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166 TRACE_graal_1("GraalCompiler::print_timers");
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167 }
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168
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169 #endif // COMPILERGRAAL
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170
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171 #ifndef PRODUCT
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172 void GraalCompiler::compile_the_world() {
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173 // We turn off CompileTheWorld so that Graal can
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174 // be compiled by C1/C2 when Graal does a CTW.
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175 CompileTheWorld = false;
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176
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177 JavaThread* THREAD = JavaThread::current();
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178 TempNewSymbol name = SymbolTable::new_symbol("com/oracle/graal/hotspot/HotSpotGraalRuntime", THREAD);
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179 KlassHandle klass = GraalRuntime::load_required_class(name);
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180 TempNewSymbol compileTheWorld = SymbolTable::new_symbol("compileTheWorld", THREAD);
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181 JavaValue result(T_VOID);
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182 JavaCallArguments args;
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183 args.push_oop(GraalRuntime::get_HotSpotGraalRuntime());
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184 JavaCalls::call_special(&result, klass, compileTheWorld, vmSymbols::void_method_signature(), &args, THREAD);
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185 GUARANTEE_NO_PENDING_EXCEPTION("Error while calling compile_the_world");
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186 }
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187 #endif