Mercurial > hg > graal-compiler
view src/share/vm/shark/sharkContext.hpp @ 2149:7e37af9d69ef
7011379: G1: overly long concurrent marking cycles
Summary: This changeset introduces filtering of SATB buffers at the point when they are about to be enqueued. If this filtering clears enough entries on each buffer, the buffer can then be re-used and not enqueued. This cuts down the number of SATB buffers that need to be processed by the concurrent marking threads.
Reviewed-by: johnc, ysr
author | tonyp |
---|---|
date | Wed, 19 Jan 2011 09:35:17 -0500 |
parents | f95d63e2154a |
children | a3142bdb6707 |
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/* * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright 2009, 2010 Red Hat, Inc. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_SHARK_SHARKCONTEXT_HPP #define SHARE_VM_SHARK_SHARKCONTEXT_HPP #include "shark/llvmHeaders.hpp" #include "shark/sharkCompiler.hpp" // The LLVMContext class allows multiple instances of LLVM to operate // independently of each other in a multithreaded context. We extend // this here to store things in Shark that are LLVMContext-specific. class SharkFreeQueueItem; class SharkContext : public llvm::LLVMContext { public: SharkContext(const char* name); private: llvm::Module* _module; #if SHARK_LLVM_VERSION >= 27 public: #else private: #endif llvm::Module* module() const { return _module; } // Get this thread's SharkContext public: static SharkContext& current() { return *SharkCompiler::compiler()->context(); } // Module accessors public: #if SHARK_LLVM_VERSION < 27 llvm::ModuleProvider* module_provider() const { return new llvm::ExistingModuleProvider(module()); } #endif void add_function(llvm::Function* function) const { module()->getFunctionList().push_back(function); } llvm::Constant* get_external(const char* name, const llvm::FunctionType* sig) { return module()->getOrInsertFunction(name, sig); } // Basic types private: const llvm::Type* _void_type; const llvm::IntegerType* _bit_type; const llvm::IntegerType* _jbyte_type; const llvm::IntegerType* _jshort_type; const llvm::IntegerType* _jint_type; const llvm::IntegerType* _jlong_type; const llvm::Type* _jfloat_type; const llvm::Type* _jdouble_type; public: const llvm::Type* void_type() const { return _void_type; } const llvm::IntegerType* bit_type() const { return _bit_type; } const llvm::IntegerType* jbyte_type() const { return _jbyte_type; } const llvm::IntegerType* jshort_type() const { return _jshort_type; } const llvm::IntegerType* jint_type() const { return _jint_type; } const llvm::IntegerType* jlong_type() const { return _jlong_type; } const llvm::Type* jfloat_type() const { return _jfloat_type; } const llvm::Type* jdouble_type() const { return _jdouble_type; } const llvm::IntegerType* intptr_type() const { return LP64_ONLY(jlong_type()) NOT_LP64(jint_type()); } // Compound types private: const llvm::PointerType* _itableOffsetEntry_type; const llvm::PointerType* _jniEnv_type; const llvm::PointerType* _jniHandleBlock_type; const llvm::PointerType* _klass_type; const llvm::PointerType* _methodOop_type; const llvm::ArrayType* _monitor_type; const llvm::PointerType* _oop_type; const llvm::PointerType* _thread_type; const llvm::PointerType* _zeroStack_type; const llvm::FunctionType* _entry_point_type; const llvm::FunctionType* _osr_entry_point_type; public: const llvm::PointerType* itableOffsetEntry_type() const { return _itableOffsetEntry_type; } const llvm::PointerType* jniEnv_type() const { return _jniEnv_type; } const llvm::PointerType* jniHandleBlock_type() const { return _jniHandleBlock_type; } const llvm::PointerType* klass_type() const { return _klass_type; } const llvm::PointerType* methodOop_type() const { return _methodOop_type; } const llvm::ArrayType* monitor_type() const { return _monitor_type; } const llvm::PointerType* oop_type() const { return _oop_type; } const llvm::PointerType* thread_type() const { return _thread_type; } const llvm::PointerType* zeroStack_type() const { return _zeroStack_type; } const llvm::FunctionType* entry_point_type() const { return _entry_point_type; } const llvm::FunctionType* osr_entry_point_type() const { return _osr_entry_point_type; } // Mappings private: const llvm::Type* _to_stackType[T_CONFLICT]; const llvm::Type* _to_arrayType[T_CONFLICT]; private: const llvm::Type* map_type(const llvm::Type* const* table, BasicType type) const { assert(type >= 0 && type < T_CONFLICT, "unhandled type"); const llvm::Type* result = table[type]; assert(type != NULL, "unhandled type"); return result; } public: const llvm::Type* to_stackType(BasicType type) const { return map_type(_to_stackType, type); } const llvm::Type* to_arrayType(BasicType type) const { return map_type(_to_arrayType, type); } // Functions queued for freeing private: SharkFreeQueueItem* _free_queue; public: void push_to_free_queue(llvm::Function* function); llvm::Function* pop_from_free_queue(); }; #endif // SHARE_VM_SHARK_SHARKCONTEXT_HPP