Mercurial > jdk8-mips64-public > hotspot / file revision

 /*

  * Copyright (c) 1999, 2007, 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.

  *

  */

 // 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();

 };