Add upcall compiler.

Upcall compiler compiles the invoke stub for native-to-managed
method invocation.

Change-Id: I09fb1e4b3f166e8da5de73e8f39509cd9be6c152
diff --git a/src/compiler_llvm/upcall_compiler.h b/src/compiler_llvm/upcall_compiler.h
new file mode 100644
index 0000000..426919e
--- /dev/null
+++ b/src/compiler_llvm/upcall_compiler.h
@@ -0,0 +1,60 @@
+/*
+ * 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_UPCALL_COMPILER_H_
+#define ART_SRC_COMPILER_LLVM_UPCALL_COMPILER_H_
+
+#include "constants.h"
+
+#include <stdint.h>
+
+namespace art {
+  class CompiledInvokeStub;
+  class Compiler;
+}
+
+namespace llvm {
+  class LLVMContext;
+  class Module;
+}
+
+namespace art {
+namespace compiler_llvm {
+
+class CompilerLLVM;
+class IRBuilder;
+
+class UpcallCompiler {
+ public:
+  UpcallCompiler(InstructionSet insn_set, Compiler& compiler);
+
+  CompiledInvokeStub* CreateStub(bool is_static, char const* shorty);
+
+ private:
+  InstructionSet insn_set_;
+  Compiler const* compiler_;
+  CompilerLLVM* compiler_llvm_;
+  llvm::Module* module_;
+  llvm::LLVMContext* context_;
+  IRBuilder& irb_;
+};
+
+
+} // namespace compiler_llvm
+} // namespace art
+
+
+#endif // ART_SRC_COMPILER_LLVM_UPCALL_COMPILER_H_