author | mikael |
Tue, 24 Dec 2013 11:48:39 -0800 | |
changeset 22234 | da823d78ad65 |
parent 20707 | b3b658c6d1f8 |
child 23196 | 7fb201976e8b |
permissions | -rw-r--r-- |
6187 | 1 |
/* |
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* Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
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* Copyright 2008, 2009, 2010, 2011 Red Hat, Inc. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#ifndef SHARE_VM_SHARK_SHARKCOMPILER_HPP |
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#define SHARE_VM_SHARK_SHARKCOMPILER_HPP |
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#include "ci/ciEnv.hpp" |
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#include "ci/ciMethod.hpp" |
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#include "compiler/abstractCompiler.hpp" |
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#include "compiler/compileBroker.hpp" |
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#include "shark/llvmHeaders.hpp" |
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#include "shark/sharkMemoryManager.hpp" |
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class SharkContext; |
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class SharkCompiler : public AbstractCompiler { |
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public: |
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// Creation |
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SharkCompiler(); |
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// Name of this compiler |
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const char *name() { return "shark"; } |
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// Missing feature tests |
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bool supports_native() { return true; } |
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bool supports_osr() { return true; } |
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bool can_compile_method(methodHandle method) { |
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return ! (method->is_method_handle_intrinsic() || method->is_compiled_lambda_form()); |
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} |
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// Initialization |
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void initialize(); |
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// Compile a normal (bytecode) method and install it in the VM |
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void compile_method(ciEnv* env, ciMethod* target, int entry_bci); |
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// Generate a wrapper for a native (JNI) method |
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nmethod* generate_native_wrapper(MacroAssembler* masm, |
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methodHandle target, |
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int compile_id, |
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BasicType* arg_types, |
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BasicType return_type); |
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// Free compiled methods (and native wrappers) |
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void free_compiled_method(address code); |
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// Each thread generating IR needs its own context. The normal |
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// context is used for bytecode methods, and is protected from |
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// multiple simultaneous accesses by being restricted to the |
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// compiler thread. The native context is used for JNI methods, |
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// and is protected from multiple simultaneous accesses by the |
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// adapter handler library lock. |
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private: |
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SharkContext* _normal_context; |
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SharkContext* _native_context; |
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public: |
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SharkContext* context() const { |
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if (JavaThread::current()->is_Compiler_thread()) { |
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return _normal_context; |
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} |
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else { |
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assert(AdapterHandlerLibrary_lock->owned_by_self(), "should be"); |
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return _native_context; |
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} |
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} |
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// The LLVM execution engine is the JIT we use to generate native |
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// code. It is thread safe, but we need to protect it with a lock |
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// of our own because otherwise LLVM's lock and HotSpot's locks |
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// interleave and deadlock. The SharkMemoryManager is not thread |
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// safe, and is protected by the same lock as the execution engine. |
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private: |
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Monitor* _execution_engine_lock; |
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SharkMemoryManager* _memory_manager; |
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llvm::ExecutionEngine* _execution_engine; |
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private: |
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Monitor* execution_engine_lock() const { |
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return _execution_engine_lock; |
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} |
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SharkMemoryManager* memory_manager() const { |
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assert(execution_engine_lock()->owned_by_self(), "should be"); |
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return _memory_manager; |
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} |
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llvm::ExecutionEngine* execution_engine() const { |
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assert(execution_engine_lock()->owned_by_self(), "should be"); |
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return _execution_engine; |
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} |
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// Global access |
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public: |
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static SharkCompiler* compiler() { |
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AbstractCompiler *compiler = |
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CompileBroker::compiler(CompLevel_full_optimization); |
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assert(compiler->is_shark() && compiler->is_initialized(), "should be"); |
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return (SharkCompiler *) compiler; |
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} |
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// Helpers |
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private: |
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static const char* methodname(const char* klass, const char* method); |
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void generate_native_code(SharkEntry* entry, |
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llvm::Function* function, |
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const char* name); |
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void free_queued_methods(); |
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}; |
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#endif // SHARE_VM_SHARK_SHARKCOMPILER_HPP |