// Copyright (c) 2017 The Khronos Group Inc.

// Copyright (c) 2017 Valve Corporation

// Copyright (c) 2017 LunarG Inc.

//

// 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 SOURCE_OPT_INLINE_OPAQUE_PASS_H_

#define SOURCE_OPT_INLINE_OPAQUE_PASS_H_

#include <algorithm>

#include <list>

#include <memory>

#include <unordered_map>

#include <vector>

#include "source/opt/def_use_manager.h"

#include "source/opt/inline_pass.h"

#include "source/opt/module.h"

namespace spvtools {

namespace opt {

// See optimizer.hpp for documentation.

class InlineOpaquePass : public InlinePass {

 public:

  InlineOpaquePass();

  Status Process() override;

  const char* name() const override { return "inline-entry-points-opaque"; }

 private:

  // Return true if |typeId| is or contains opaque type

  bool IsOpaqueType(uint32_t typeId);

  // Return true if function call |callInst| has opaque argument or return type

  bool HasOpaqueArgsOrReturn(const Instruction* callInst);

  // Inline all function calls in |func| that have opaque params or return

  // type. Inline similarly all code that is inlined into func. Return true

  // if func is modified.

  Status InlineOpaque(Function* func);

  void Initialize();

  Pass::Status ProcessImpl();

};

}  // namespace opt

}  // namespace spvtools

#endif  // SOURCE_OPT_INLINE_OPAQUE_PASS_H_