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annotate src/share/vm/compiler/abstractCompiler.hpp @ 12356:359f7e70ae7f

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Reduce HotSpot diff and fix previous merge
author Gilles Duboscq <duboscq@ssw.jku.at>
date Fri, 11 Oct 2013 15:41:33 +0200
parents 64f41765b3d2
children f6c511451e4a
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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 typedef void (*initializer)(void);
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31
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32 #ifdef GRAAL
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33 class CompilerStatistics {
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34 public:
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35 elapsedTimer _t_osr_compilation;
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36 elapsedTimer _t_standard_compilation;
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37 int _sum_osr_bytes_compiled;
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38 int _sum_standard_bytes_compiled;
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39 CompilerStatistics() : _sum_osr_bytes_compiled(0), _sum_standard_bytes_compiled(0) {}
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40 };
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41 #endif
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42
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43 class AbstractCompiler : public CHeapObj<mtCompiler> {
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44 private:
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45 bool _is_initialized; // Mark whether compiler object is initialized
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46
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47 protected:
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48 // Used for tracking global state of compiler runtime initialization
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49 enum { uninitialized, initializing, initialized };
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50
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51 // The (closed set) of concrete compiler classes. Using an tag like this
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52 // avoids a confusing use of macros around the definition of the
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53 // 'is_<compiler type>' methods.
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54 enum Type { c1, c2, shark, graal };
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55
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56 // This method will call the initialization method "f" once (per compiler class/subclass)
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57 // and do so without holding any locks
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58 void initialize_runtimes(initializer f, volatile int* state);
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59
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60 private:
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61 Type _type;
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63 #ifdef GRAAL
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64 CompilerStatistics _stats;
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65 #endif
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67 public:
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68 AbstractCompiler(Type type) : _is_initialized(false), _type(type) {}
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69
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70 // Name of this compiler
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71 virtual const char* name() = 0;
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72
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73 // Should a native wrapper be generated by the runtime. This method
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74 // does *not* answer the question "can this compiler generate code for
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75 // a native method".
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76 virtual bool supports_native() { return true; }
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77 virtual bool supports_osr () { return true; }
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78 virtual bool can_compile_method(methodHandle method) { return true; }
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79 bool is_c1 () { return _type == c1; }
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80 bool is_c2 () { return _type == c2; }
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81 bool is_shark() { return _type == shark; }
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82 bool is_graal() { return _type == graal; }
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83
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84 // Customization
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85 virtual bool needs_stubs () = 0;
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86
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87 void mark_initialized() { _is_initialized = true; }
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88 bool is_initialized() { return _is_initialized; }
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89
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90 virtual void initialize() = 0;
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91
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92 // Compilation entry point for methods
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93 virtual void compile_method(ciEnv* env,
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94 ciMethod* target,
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95 int entry_bci) {
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96 ShouldNotReachHere();
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97 }
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98
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99
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100 // Print compilation timers and statistics
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101 virtual void print_timers() {
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102 ShouldNotReachHere();
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103 }
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105 #ifdef GRAAL
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106 CompilerStatistics* stats() { return &_stats; }
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107 #endif
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108 };
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109
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110 #endif // SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP