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annotate src/share/vm/graal/graalCompiler.cpp @ 15603:b7fb36e57da8

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made Graal initialization be driven from Java to simplify sequencing and synchronization
author Doug Simon <doug.simon@oracle.com>
date Mon, 12 May 2014 23:27:07 +0200
parents 063ec2920d21
children 66a9286203a2
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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/graalVMToCompiler.hpp"
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29 #include "graal/graalEnv.hpp"
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30 #include "graal/graalRuntime.hpp"
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31 #include "runtime/compilationPolicy.hpp"
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32 #include "runtime/globals_extension.hpp"
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33
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34 GraalCompiler* GraalCompiler::_instance = NULL;
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35
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36 GraalCompiler::GraalCompiler() : AbstractCompiler(graal) {
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37 #ifdef COMPILERGRAAL
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38 _started = false;
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39 #endif
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40 assert(_instance == NULL, "only one instance allowed");
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41 _instance = this;
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42 }
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43
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44 // Initialization
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45 void GraalCompiler::initialize() {
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46 #ifdef COMPILERGRAAL
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47 if (!UseCompiler || !should_perform_init()) {
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48 return;
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49 }
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50
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51 BufferBlob* buffer_blob = GraalRuntime::initialize_buffer_blob();
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52 if (!UseGraalCompilationQueue) {
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53 // This path is used for initialization both by the native queue and the graal queue
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54 // but set_state acquires a lock which might not be safe during JVM_CreateJavaVM, so
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55 // only update the state flag for the native queue.
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56 if (buffer_blob == NULL) {
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57 set_state(failed);
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58 } else {
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59 set_state(initialized);
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60 }
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61 }
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62
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63 {
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64 HandleMark hm;
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65
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66 bool bootstrap = UseGraalCompilationQueue && (FLAG_IS_DEFAULT(BootstrapGraal) ? !TieredCompilation : BootstrapGraal);
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67 VMToCompiler::startCompiler(bootstrap);
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68 _started = true;
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69
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70 // Graal is considered as application code so we need to
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71 // stop the VM deferring compilation now.
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72 CompilationPolicy::completed_vm_startup();
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73
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74 if (bootstrap) {
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75 // Avoid -Xcomp and -Xbatch problems by turning on interpreter and background compilation for bootstrapping.
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76 FlagSetting a(UseInterpreter, true);
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77 FlagSetting b(BackgroundCompilation, true);
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78 #ifndef PRODUCT
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79 // Turn off CompileTheWorld during bootstrap so that a counter overflow event
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80 // triggers further compilation (see NonTieredCompPolicy::event()) hence
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81 // allowing a complete bootstrap
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82 FlagSetting c(CompileTheWorld, false);
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83 #endif
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84 VMToCompiler::bootstrap();
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85 }
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86
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87 #ifndef PRODUCT
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88 if (CompileTheWorld) {
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89 VMToCompiler::compileTheWorld();
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90 }
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91 #endif
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92 }
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93 #endif // COMPILERGRAAL
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94 }
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95
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96 #ifdef COMPILERGRAAL
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97 void GraalCompiler::compile_method(methodHandle method, int entry_bci, CompileTask* task, jboolean blocking) {
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98 GRAAL_EXCEPTION_CONTEXT
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99 if (!_started) {
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100 CompilationPolicy::policy()->delay_compilation(method());
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101 return;
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102 }
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103
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104 assert(_started, "must already be started");
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105 ResourceMark rm;
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106 thread->set_is_graal_compiling(true);
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107 VMToCompiler::compileMethod(method(), entry_bci, (jlong) (address) task, blocking);
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108 thread->set_is_graal_compiling(false);
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109 }
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110
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111
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112 // Compilation entry point for methods
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113 void GraalCompiler::compile_method(ciEnv* env, ciMethod* target, int entry_bci) {
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114 ShouldNotReachHere();
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115 }
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116
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117 void GraalCompiler::shutdown() {
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118 if (_started) {
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119 VMToCompiler::shutdownCompiler();
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120 _started = false;
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121 }
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122 }
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123
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124 // Print compilation timers and statistics
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125 void GraalCompiler::print_timers() {
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126 TRACE_graal_1("GraalCompiler::print_timers");
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127 }
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128
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129 #endif // COMPILERGRAAL