| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef ART_SRC_COMPILER_LLVM_TBAA_INFO_H_ |
| #define ART_SRC_COMPILER_LLVM_TBAA_INFO_H_ |
| |
| #include "backend_types.h" |
| |
| #include <cstring> |
| |
| namespace llvm { |
| class LLVMContext; |
| class MDNode; |
| class StringRef; |
| } |
| |
| namespace art { |
| namespace compiler_llvm { |
| |
| |
| class TBAAInfo { |
| public: |
| TBAAInfo(llvm::LLVMContext& context) : context_(context), root_(NULL) { |
| std::memset(special_type_, 0, sizeof(special_type_)); |
| std::memset(memory_jtype_, 0, sizeof(memory_jtype_)); |
| } |
| |
| llvm::MDNode* GetRootType(); |
| |
| llvm::MDNode* GetSpecialType(TBAASpecialType special_ty); |
| |
| llvm::MDNode* GetMemoryJType(TBAASpecialType special_ty, JType j_ty); |
| |
| llvm::MDNode* GenTBAANode(llvm::StringRef name, |
| llvm::MDNode* parent = NULL, |
| bool readonly = false); |
| |
| private: |
| llvm::LLVMContext& context_; |
| llvm::MDNode* root_; |
| llvm::MDNode* special_type_[MAX_TBAA_SPECIAL_TYPE]; |
| // There are 3 categories of memory types will not alias: array element, instance field, and |
| // static field. |
| llvm::MDNode* memory_jtype_[3][MAX_JTYPE]; |
| }; |
| |
| |
| } // namespace compiler_llvm |
| } // namespace art |
| |
| #endif // ART_SRC_COMPILER_LLVM_TBAA_INFO_H_ |