Basic TBAA.
Separate load/store of register, memory, runtime information, and stack
temp.
Change-Id: I9d1eadac718c48f43839b0762460defc6c641ae4
diff --git a/src/compiler_llvm/tbaa_info.h b/src/compiler_llvm/tbaa_info.h
new file mode 100644
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+++ b/src/compiler_llvm/tbaa_info.h
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+/*
+ * 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_));
+ }
+
+ llvm::MDNode* GetRootType();
+
+ llvm::MDNode* GetSpecialType(TBAASpecialType special_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];
+};
+
+
+} // namespace compiler_llvm
+} // namespace art
+
+#endif // ART_SRC_COMPILER_LLVM_TBAA_INFO_H_