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annotate src/share/vm/jvmci/jvmciCompiler.hpp @ 23679:b5557b757040

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fix HotSpotVMConfig startup performance (JDK-8159167)
author Doug Simon <doug.simon@oracle.com>
date Wed, 15 Jun 2016 00:00:41 +0200
parents f84a5ac3be22
children 190f5f33b7d3
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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 #ifndef SHARE_VM_JVMCI_JVMCI_COMPILER_HPP
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25 #define SHARE_VM_JVMCI_JVMCI_COMPILER_HPP
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26
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27 #include "compiler/abstractCompiler.hpp"
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28 #include "jvmci/jvmciEnv.hpp"
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30 class JVMCICompiler : public AbstractCompiler {
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31 private:
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32 bool _bootstrapping;
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33
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34 /**
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35 * True if we have seen a bootstrap compilation request.
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36 */
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37 volatile bool _bootstrap_compilation_request_handled;
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38
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39 /**
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40 * Number of methods successfully compiled by a call to
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41 * JVMCICompiler::compile_method().
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42 */
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43 volatile int _methods_compiled;
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44
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45 static JVMCICompiler* _instance;
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46
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47 static elapsedTimer _codeInstallTimer;
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48
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49 public:
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50 JVMCICompiler();
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51
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52 static JVMCICompiler* instance(TRAPS) {
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53 if (!EnableJVMCI) {
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54 THROW_MSG_NULL(vmSymbols::java_lang_InternalError(), "JVMCI is not enabled")
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55 }
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56 return _instance;
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57 }
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58
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59 virtual const char* name() { return "JVMCI"; }
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60
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61 virtual bool supports_native() { return true; }
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62 virtual bool supports_osr () { return true; }
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63
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64 bool is_jvmci() { return true; }
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65 bool is_c1 () { return false; }
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66 bool is_c2 () { return false; }
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67
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68 bool needs_stubs () { return false; }
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69
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70 // Initialization
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71 virtual void initialize();
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72
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73 /**
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74 * Initialize the compile queue with the methods in java.lang.Object and
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75 * then wait until the queue is empty.
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76 */
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77 void bootstrap(TRAPS);
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78
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79 bool is_bootstrapping() const { return _bootstrapping; }
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80
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81 // Compilation entry point for methods
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82 virtual void compile_method(ciEnv* env, ciMethod* target, int entry_bci);
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83
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84 void compile_method(const methodHandle& target, int entry_bci, JVMCIEnv* env);
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85
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86 virtual bool is_trivial(Method* method);
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87
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88 // Print compilation timers and statistics
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89 virtual void print_timers();
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90
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91 /**
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92 * Gets the number of methods that have been successfully compiled by
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93 * a call to JVMCICompiler::compile_method().
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94 */
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95 int methods_compiled() { return _methods_compiled; }
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96
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97 // Print compilation timers and statistics
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98 static void print_compilation_timers();
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99
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100 static elapsedTimer* codeInstallTimer() { return &_codeInstallTimer; }
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101 };
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102
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103 #endif // SHARE_VM_JVMCI_JVMCI_COMPILER_HPP