Beginning of LLVM backend for ART.

Change-Id: I03466aed94670ac72d489ebc6e34d7ee1c9c857e

1 files changed, 107 insertions, 0 deletions

diff --git a/src/compiler_llvm/compiler_llvm.h b/src/compiler_llvm/compiler_llvm.h
new file mode 100644
index 0000000000..74f8ba1c33
--- /dev/null
+++ b/src/compiler_llvm/compiler_llvm.h
@@ -0,0 +1,107 @@
+/*
+ * 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_LLVM_COMPILER_H_
+#define ART_SRC_COMPILER_LLVM_LLVM_COMPILER_H_
+
+#include "constants.h"
+#include "dex_file.h"
+#include "macros.h"
+
+#include <UniquePtr.h>
+
+#include <string>
+
+namespace art {
+  class ClassLoader;
+  class CompiledMethod;
+  class Compiler;
+  class Mutex;
+}
+
+
+namespace llvm {
+  class Function;
+  class LLVMContext;
+  class Module;
+  class PointerType;
+  class StructType;
+  class Type;
+}
+
+
+namespace art {
+namespace compiler_llvm {
+
+class IRBuilder;
+
+class CompilerLLVM {
+ public:
+  CompilerLLVM(Compiler* compiler, InstructionSet insn_set);
+
+  ~CompilerLLVM();
+
+  void MaterializeLLVMModule();
+
+  void WriteBitcodeToFile(std::string const &filename);
+
+  Compiler* GetCompiler() const {
+    return compiler_;
+  }
+
+  InstructionSet GetInstructionSet() const {
+    return insn_set_;
+  }
+
+  llvm::Module* GetModule() const {
+    return module_;
+  }
+
+  llvm::LLVMContext* GetLLVMContext() const {
+    return context_.get();
+  }
+
+  IRBuilder* GetIRBuilder() const {
+    return irb_.get();
+  }
+
+  CompiledMethod* CompileDexMethod(DexFile::CodeItem const* code_item,
+                                   uint32_t access_flags,
+                                   uint32_t method_idx,
+                                   ClassLoader const* class_loader,
+                                   DexFile const& dex_file);
+
+ private:
+  Compiler* compiler_;
+
+  Mutex compiler_lock_;
+
+  InstructionSet insn_set_;
+
+  UniquePtr<llvm::LLVMContext> context_;
+
+  UniquePtr<IRBuilder> irb_;
+
+  llvm::Module* module_;
+
+  DISALLOW_COPY_AND_ASSIGN(CompilerLLVM);
+};
+
+
+} // namespace compiler_llvm
+} // namespace art
+
+#endif // ART_SRC_COMPILER_LLVM_LLVM_COMPILER_H_