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annotate src/share/vm/compiler/abstractCompiler.hpp @ 12880:469216acdb28

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8023014: CodeSweeperSweepNoFlushTest.java fails with HS crash Summary: Ensure ensure correct initialization of compiler runtime Reviewed-by: kvn, twisti
author anoll
date Thu, 10 Oct 2013 15:44:12 +0200
parents 606eada1bf86
children 096c224171c4 de6a9e811145
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1 /*
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2 * Copyright (c) 1999, 2012, 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
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25 #ifndef SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP
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26 #define SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP
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27
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28 #include "ci/compilerInterface.hpp"
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29
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30 class AbstractCompiler : public CHeapObj<mtCompiler> {
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31 private:
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32 volatile int _num_compiler_threads;
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33
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34 protected:
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35 volatile int _compiler_state;
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36 // Used for tracking global state of compiler runtime initialization
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37 enum { uninitialized, initializing, initialized, failed, shut_down };
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38
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39 // This method returns true for the first compiler thread that reaches that methods.
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40 // This thread will initialize the compiler runtime.
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41 bool should_perform_init();
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42
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43 public:
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44 AbstractCompiler() : _compiler_state(uninitialized), _num_compiler_threads(0) {}
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45
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46 // This function determines the compiler thread that will perform the
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47 // shutdown of the corresponding compiler runtime.
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48 bool should_perform_shutdown();
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49
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50 // Name of this compiler
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51 virtual const char* name() = 0;
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52
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53 // Missing feature tests
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54 virtual bool supports_native() { return true; }
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55 virtual bool supports_osr () { return true; }
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56 virtual bool can_compile_method(methodHandle method) { return true; }
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57 #if defined(TIERED) || ( !defined(COMPILER1) && !defined(COMPILER2) && !defined(SHARK))
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58 virtual bool is_c1 () { return false; }
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59 virtual bool is_c2 () { return false; }
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60 virtual bool is_shark() { return false; }
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61 #else
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62 #ifdef COMPILER1
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63 bool is_c1 () { return true; }
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64 bool is_c2 () { return false; }
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65 bool is_shark() { return false; }
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66 #endif // COMPILER1
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67 #ifdef COMPILER2
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68 bool is_c1 () { return false; }
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69 bool is_c2 () { return true; }
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70 bool is_shark() { return false; }
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71 #endif // COMPILER2
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72 #ifdef SHARK
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73 bool is_c1 () { return false; }
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74 bool is_c2 () { return false; }
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75 bool is_shark() { return true; }
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76 #endif // SHARK
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77 #endif // TIERED
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78
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79 // Customization
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80 virtual void initialize () = 0;
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81
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82 void set_num_compiler_threads(int num) { _num_compiler_threads = num; }
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83 int num_compiler_threads() { return _num_compiler_threads; }
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84
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85 // Get/set state of compiler objects
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86 bool is_initialized() { return _compiler_state == initialized; }
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87 bool is_failed () { return _compiler_state == failed;}
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88 void set_state (int state);
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89 void set_shut_down () { set_state(shut_down); }
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90 // Compilation entry point for methods
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91 virtual void compile_method(ciEnv* env, ciMethod* target, int entry_bci) {
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92 ShouldNotReachHere();
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93 }
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94
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96 // Print compilation timers and statistics
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97 virtual void print_timers() {
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98 ShouldNotReachHere();
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99 }
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100 };
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101
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102 #endif // SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP