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annotate src/share/vm/compiler/abstractCompiler.hpp @ 7154:5d0bb7d52783

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changes to support Graal co-existing with the other HotSpot compiler(s) and being used for explicit compilation requests and code installation via the Graal API
author Doug Simon <doug.simon@oracle.com>
date Wed, 12 Dec 2012 21:36:40 +0100
parents 6a8b22829e36
children 140d4d4ab3b9
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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 class AbstractCompiler : public CHeapObj<mtCompiler> {
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33 private:
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34 bool _is_initialized; // Mark whether compiler object is initialized
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35
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36 protected:
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37 // Used for tracking global state of compiler runtime initialization
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38 enum { uninitialized, initializing, initialized };
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39
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40 // The (closed set) of concrete compiler classes. Using an tag like this
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41 // avoids a confusing use of macros around the definition of the
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42 // 'is_<compiler type>' methods.
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43 enum Type { c1, c2, shark, graal };
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44
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45 // This method will call the initialization method "f" once (per compiler class/subclass)
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46 // and do so without holding any locks
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47 void initialize_runtimes(initializer f, volatile int* state);
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48
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49 private:
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50 Type _type;
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51
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52 public:
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53 AbstractCompiler(Type type) : _is_initialized(false), _type(type) {}
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54
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55 // Name of this compiler
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56 virtual const char* name() = 0;
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57
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58 // Should a native wrapper be generated by the runtime. This method
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59 // does *not* answer the question "can this compiler generate code for
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60 // a native method".
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61 virtual bool supports_native() { return true; }
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63 virtual bool supports_osr () { return true; }
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64 bool is_c1 () { return _type == c1; }
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65 bool is_c2 () { return _type == c2; }
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66 bool is_shark() { return _type == shark; }
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67 bool is_graal() { return _type == graal; }
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69 void mark_initialized() { _is_initialized = true; }
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70 bool is_initialized() { return _is_initialized; }
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72 virtual void initialize() = 0;
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73
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74 // Compilation entry point for methods
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75 virtual void compile_method(ciEnv* env,
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76 ciMethod* target,
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77 int entry_bci) {
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78 ShouldNotReachHere();
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79 }
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82 // Print compilation timers and statistics
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83 virtual void print_timers() {
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84 ShouldNotReachHere();
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85 }
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86 };
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88 #endif // SHARE_VM_COMPILER_ABSTRACTCOMPILER_HPP