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/*
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* Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved.
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* Copyright 2009, 2010 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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// The LLVMContext class allows multiple instances of LLVM to operate
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// independently of each other in a multithreaded context. We extend
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// this here to store things in Shark that are LLVMContext-specific.
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class SharkFreeQueueItem;
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class SharkContext : public llvm::LLVMContext {
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public:
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SharkContext(const char* name);
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private:
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llvm::Module* _module;
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#if SHARK_LLVM_VERSION >= 27
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public:
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#else
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private:
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#endif
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llvm::Module* module() const {
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return _module;
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}
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// Get this thread's SharkContext
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public:
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static SharkContext& current() {
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return *SharkCompiler::compiler()->context();
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}
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// Module accessors
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public:
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#if SHARK_LLVM_VERSION < 27
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llvm::ModuleProvider* module_provider() const {
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return new llvm::ExistingModuleProvider(module());
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}
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#endif
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void add_function(llvm::Function* function) const {
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module()->getFunctionList().push_back(function);
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}
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llvm::Constant* get_external(const char* name,
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const llvm::FunctionType* sig) {
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return module()->getOrInsertFunction(name, sig);
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}
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// Basic types
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private:
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const llvm::Type* _void_type;
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const llvm::IntegerType* _bit_type;
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const llvm::IntegerType* _jbyte_type;
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const llvm::IntegerType* _jshort_type;
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const llvm::IntegerType* _jint_type;
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const llvm::IntegerType* _jlong_type;
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const llvm::Type* _jfloat_type;
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const llvm::Type* _jdouble_type;
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public:
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const llvm::Type* void_type() const {
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return _void_type;
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}
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const llvm::IntegerType* bit_type() const {
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return _bit_type;
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}
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const llvm::IntegerType* jbyte_type() const {
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return _jbyte_type;
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}
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const llvm::IntegerType* jshort_type() const {
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return _jshort_type;
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}
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const llvm::IntegerType* jint_type() const {
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return _jint_type;
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}
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const llvm::IntegerType* jlong_type() const {
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return _jlong_type;
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}
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const llvm::Type* jfloat_type() const {
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return _jfloat_type;
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}
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const llvm::Type* jdouble_type() const {
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return _jdouble_type;
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}
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const llvm::IntegerType* intptr_type() const {
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return LP64_ONLY(jlong_type()) NOT_LP64(jint_type());
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}
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// Compound types
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private:
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const llvm::PointerType* _itableOffsetEntry_type;
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const llvm::PointerType* _jniEnv_type;
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const llvm::PointerType* _jniHandleBlock_type;
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const llvm::PointerType* _klass_type;
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const llvm::PointerType* _methodOop_type;
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const llvm::ArrayType* _monitor_type;
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const llvm::PointerType* _oop_type;
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const llvm::PointerType* _thread_type;
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const llvm::PointerType* _zeroStack_type;
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const llvm::FunctionType* _entry_point_type;
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const llvm::FunctionType* _osr_entry_point_type;
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public:
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const llvm::PointerType* itableOffsetEntry_type() const {
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return _itableOffsetEntry_type;
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}
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const llvm::PointerType* jniEnv_type() const {
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return _jniEnv_type;
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}
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const llvm::PointerType* jniHandleBlock_type() const {
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return _jniHandleBlock_type;
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}
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const llvm::PointerType* klass_type() const {
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return _klass_type;
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}
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const llvm::PointerType* methodOop_type() const {
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return _methodOop_type;
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}
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const llvm::ArrayType* monitor_type() const {
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return _monitor_type;
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}
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const llvm::PointerType* oop_type() const {
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return _oop_type;
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}
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const llvm::PointerType* thread_type() const {
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return _thread_type;
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}
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const llvm::PointerType* zeroStack_type() const {
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return _zeroStack_type;
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}
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const llvm::FunctionType* entry_point_type() const {
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return _entry_point_type;
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}
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const llvm::FunctionType* osr_entry_point_type() const {
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return _osr_entry_point_type;
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}
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// Mappings
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private:
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const llvm::Type* _to_stackType[T_CONFLICT];
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const llvm::Type* _to_arrayType[T_CONFLICT];
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private:
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const llvm::Type* map_type(const llvm::Type* const* table,
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BasicType type) const {
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assert(type >= 0 && type < T_CONFLICT, "unhandled type");
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const llvm::Type* result = table[type];
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assert(type != NULL, "unhandled type");
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return result;
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}
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public:
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const llvm::Type* to_stackType(BasicType type) const {
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return map_type(_to_stackType, type);
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}
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const llvm::Type* to_arrayType(BasicType type) const {
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return map_type(_to_arrayType, type);
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}
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// Functions queued for freeing
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private:
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SharkFreeQueueItem* _free_queue;
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public:
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void push_to_free_queue(llvm::Function* function);
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llvm::Function* pop_from_free_queue();
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};
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