/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

/*
 * 2020.7.14 - Overload function Build.
 */

/*!
 * \file tvm/codegen.h
 * \brief Collection of Lowlevel IR pass to codegen.
 */
#ifndef TVM_CODEGEN_H_
#define TVM_CODEGEN_H_

#include <string>
#include "base.h"
#include "expr.h"
#include "lowered_func.h"
#include "api_registry.h"
#include "runtime/packed_func.h"

namespace air {
/*! \brief namespace for lowlevel IR pass and codegen */
namespace codegen {
// use packed function from runtime.
using runtime::PackedFunc;
using runtime::TVMArgs;
using runtime::TVMRetValue;

/*!
 * \brief Build a module from array of lowered function.
 * \param funcs The functions to be built.
 * \param target The target to be built.
 * \return The builded module.
 *
 * \note Calls global API function  "_codegen_build_" + target
 */
 runtime::Module Build(const Array<LoweredFunc>& funcs,
                       const std::string& target);

runtime::Module Build(const Array<LoweredFunc>& funcs,
                      const std::string& target, const Array<NodeRef>& global_external_call_names);
                      
 /*!
  * \brief Pack imported device library to a C file.
  *  Compile the C file and link with the host library
 *  will allow the DSO loader to automatically discover and import
 *  the dependency from the shared library.
 *
 * \param m The host module with the imports.
 * \param system_lib Whether expose as system library.
 * \return cstr The C string representation of the file.
 */
std::string PackImportsToC(const runtime::Module& m, bool system_lib);
}  // namespace codegen
}  // namespace air

#endif  // TVM_CODEGEN_H_
