utils.h

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// MIT License
//
// Copyright (c) 2019 Ruhr University Bochum, Chair for Embedded Security. All Rights reserved.
// Copyright (c) 2019 Marc Fyrbiak, Sebastian Wallat, Max Hoffmann ("ORIGINAL AUTHORS"). All rights reserved.
// Copyright (c) 2021 Max Planck Institute for Security and Privacy. All Rights reserved.
// Copyright (c) 2021 Jörn Langheinrich, Julian Speith, Nils Albartus, René Walendy, Simon Klix ("ORIGINAL AUTHORS"). All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// SOFTWARE.
 
#pragma once
 
#include "hal_core/defines.h"
#include "hal_core/utilities/result.h"
 
#include <set>
#include <vector>
 
namespace hal
{
    class Net;
    class Gate;
 
    namespace module_identification
    {
        std::set<u32> find_neighboring_registers(const Net* n, const std::vector<std::vector<Gate*>>& registers);
 
        std::set<u32> find_neighboring_registers(const std::vector<Net*> nets, const std::vector<std::vector<Gate*>>& registers);
 
        std::vector<std::vector<Net*>>
            reorder_commutative_operands(const std::vector<std::vector<Net*>>& operands, const std::vector<std::vector<Gate*>>& registers, const u32 permute_start_index = 0);
 
        std::vector<Net*> get_input_nets(const std::vector<Gate*>& gates);
 
        std::vector<Net*> get_output_nets(const std::vector<Gate*>& gates, bool only_external_destinations = true);
    }    // namespace module_identification
}    // namespace hal