Mercurial > hg > graal-compiler
annotate src/share/vm/shark/sharkCompiler.hpp @ 1941:79d04223b8a5
Added caching for resolved types and resolved fields.
This is crucial, because the local load elimination will lead to wrong results, if field equality (of two RiField objects with the same object and the same RiType) is not given. The caching makes sure that the default equals implementation is sufficient.
| author | Thomas Wuerthinger <wuerthinger@ssw.jku.at> |
|---|---|
| date | Tue, 28 Dec 2010 18:33:26 +0100 |
| parents | a222fcfba398 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 1692 | 1 /* |
| 2 * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved. | |
| 3 * Copyright 2008, 2009 Red Hat, Inc. | |
| 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 5 * | |
| 6 * This code is free software; you can redistribute it and/or modify it | |
| 7 * under the terms of the GNU General Public License version 2 only, as | |
| 8 * published by the Free Software Foundation. | |
| 9 * | |
| 10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 13 * version 2 for more details (a copy is included in the LICENSE file that | |
| 14 * accompanied this code). | |
| 15 * | |
| 16 * You should have received a copy of the GNU General Public License version | |
| 17 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 19 * | |
| 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 21 * or visit www.oracle.com if you need additional information or have any | |
| 22 * questions. | |
| 23 * | |
| 24 */ | |
| 25 | |
| 26 class SharkContext; | |
| 27 | |
| 28 class SharkCompiler : public AbstractCompiler { | |
| 29 public: | |
| 30 // Creation | |
| 31 SharkCompiler(); | |
| 32 | |
| 33 // Name of this compiler | |
| 34 const char *name() { return "shark"; } | |
| 35 | |
| 36 // Missing feature tests | |
| 37 bool supports_native() { return true; } | |
| 38 bool supports_osr() { return true; } | |
| 39 | |
| 40 // Customization | |
| 41 bool needs_adapters() { return false; } | |
| 42 bool needs_stubs() { return false; } | |
| 43 | |
| 44 // Initialization | |
| 45 void initialize(); | |
| 46 | |
| 47 // Compile a normal (bytecode) method and install it in the VM | |
| 48 void compile_method(ciEnv* env, ciMethod* target, int entry_bci); | |
| 49 | |
| 50 // Generate a wrapper for a native (JNI) method | |
| 51 nmethod* generate_native_wrapper(MacroAssembler* masm, | |
| 52 methodHandle target, | |
| 53 BasicType* arg_types, | |
| 54 BasicType return_type); | |
| 55 | |
| 56 // Free compiled methods (and native wrappers) | |
| 57 void free_compiled_method(address code); | |
| 58 | |
| 59 // Each thread generating IR needs its own context. The normal | |
| 60 // context is used for bytecode methods, and is protected from | |
| 61 // multiple simultaneous accesses by being restricted to the | |
| 62 // compiler thread. The native context is used for JNI methods, | |
| 63 // and is protected from multiple simultaneous accesses by the | |
| 64 // adapter handler library lock. | |
| 65 private: | |
| 66 SharkContext* _normal_context; | |
| 67 SharkContext* _native_context; | |
| 68 | |
| 69 public: | |
| 70 SharkContext* context() const { | |
| 71 if (JavaThread::current()->is_Compiler_thread()) { | |
| 72 return _normal_context; | |
| 73 } | |
| 74 else { | |
| 75 assert(AdapterHandlerLibrary_lock->owned_by_self(), "should be"); | |
| 76 return _native_context; | |
| 77 } | |
| 78 } | |
| 79 | |
| 80 // The LLVM execution engine is the JIT we use to generate native | |
| 81 // code. It is thread safe, but we need to protect it with a lock | |
| 82 // of our own because otherwise LLVM's lock and HotSpot's locks | |
| 83 // interleave and deadlock. The SharkMemoryManager is not thread | |
| 84 // safe, and is protected by the same lock as the execution engine. | |
| 85 private: | |
| 86 Monitor* _execution_engine_lock; | |
| 87 SharkMemoryManager* _memory_manager; | |
| 88 llvm::ExecutionEngine* _execution_engine; | |
| 89 | |
| 90 private: | |
| 91 Monitor* execution_engine_lock() const { | |
| 92 return _execution_engine_lock; | |
| 93 } | |
| 94 SharkMemoryManager* memory_manager() const { | |
| 95 assert(execution_engine_lock()->owned_by_self(), "should be"); | |
| 96 return _memory_manager; | |
| 97 } | |
| 98 llvm::ExecutionEngine* execution_engine() const { | |
| 99 assert(execution_engine_lock()->owned_by_self(), "should be"); | |
| 100 return _execution_engine; | |
| 101 } | |
| 102 | |
| 103 // Global access | |
| 104 public: | |
| 105 static SharkCompiler* compiler() { | |
|
1845
a222fcfba398
6990549: Zero and Shark fixes after 6978355 and 6953144
twisti
parents:
1692
diff
changeset
|
106 AbstractCompiler *compiler = CompileBroker::compiler(CompLevel_simple); |
| 1692 | 107 assert(compiler->is_shark() && compiler->is_initialized(), "should be"); |
| 108 return (SharkCompiler *) compiler; | |
| 109 } | |
| 110 | |
| 111 // Helpers | |
| 112 private: | |
| 113 static const char* methodname(const char* klass, const char* method); | |
| 114 void generate_native_code(SharkEntry* entry, | |
| 115 llvm::Function* function, | |
| 116 const char* name); | |
| 117 void free_queued_methods(); | |
| 118 }; |