netlist_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/netlist/boolean_function.h"
#include "hal_core/netlist/netlist.h"
 
namespace hal
{
    class Gate;
    class Net;
 
    namespace netlist_utils
    {
        [[deprecated("Will be removed in a future version, use SubgraphNetlistDecorator::get_subgraph_function instead.")]] CORE_API Result<BooleanFunction>
            get_subgraph_function(const Net* net, const std::vector<const Gate*>& subgraph_gates, std::map<std::pair<u32, const GatePin*>, BooleanFunction>& cache);
 
        [[deprecated("Will be removed in a future version, use SubgraphNetlistDecorator::get_subgraph_function instead.")]] CORE_API Result<BooleanFunction>
            get_subgraph_function(const Net* net, const std::vector<const Gate*>& subgraph_gates);
 
        [[deprecated("Will be removed in a future version, use Netlist::copy instead.")]] CORE_API std::unique_ptr<Netlist> copy_netlist(const Netlist* nl);
 
        std::pair<std::map<u32, Gate*>, std::vector<std::vector<int>>> get_ff_dependency_matrix(const Netlist* nl);
 
        [[deprecated("Will be removed in a future version, use SubgraphNetlistDecorator::copy_subgraph_netlist instead.")]] CORE_API std::unique_ptr<Netlist>
            get_partial_netlist(const Netlist* nl, const std::vector<const Gate*>& subgraph_gates);
 
        [[deprecated("Will be removed in a future version, use NetlistTraversalDecorator::get_next_matching_gates_until_depth instead.")]] CORE_API std::vector<Gate*>
            get_next_gates(const Gate* gate, bool get_successors, int depth = 0, const std::function<bool(const Gate*)>& filter = nullptr);
 
        [[deprecated("Will be removed in a future version, use NetlistTraversalDecorator::get_next_matching_gates_until_depth instead.")]] CORE_API std::vector<Gate*>
            get_next_gates(const Net* net, bool get_successors, int depth = 0, const std::function<bool(const Gate*)>& filter = nullptr);
 
        [[deprecated("Will be removed in a future version, use NetlistTraversalDecorator::get_next_sequential_gates instead.")]] CORE_API std::vector<Gate*>
            get_next_sequential_gates(const Gate* gate, bool get_successors, std::unordered_map<u32, std::vector<Gate*>>& cache);
 
        [[deprecated("Will be removed in a future version, use NetlistTraversalDecorator::get_next_sequential_gates instead.")]] CORE_API std::vector<Gate*>
            get_next_sequential_gates(const Gate* gate, bool get_successors);
 
        [[deprecated("Will be removed in a future version, use NetlistTraversalDecorator::get_next_sequential_gates instead.")]] CORE_API std::vector<Gate*>
            get_next_sequential_gates(const Net* net, bool get_successors, std::unordered_map<u32, std::vector<Gate*>>& cache);
 
        [[deprecated("Will be removed in a future version, use NetlistTraversalDecorator::get_next_sequential_gates instead.")]] CORE_API std::vector<Gate*>
            get_next_sequential_gates(const Net* net, bool get_successors);
 
        CORE_API std::vector<Gate*> get_path(const Gate* gate, bool get_successors, std::set<GateTypeProperty> stop_properties, std::unordered_map<u32, std::vector<Gate*>>& cache);
 
        CORE_API std::vector<Gate*> get_path(const Gate* gate, bool get_successors, std::set<GateTypeProperty> stop_properties);
 
        CORE_API std::vector<Gate*> get_path(const Net* net, bool get_successors, std::set<GateTypeProperty> stop_properties, std::unordered_map<u32, std::vector<Gate*>>& cache);
 
        CORE_API std::vector<Gate*> get_path(const Net* net, bool get_successors, std::set<GateTypeProperty> stop_properties);
 
        CORE_API std::vector<Net*> get_nets_at_pins(Gate* gate, std::vector<GatePin*> pins);
 
        [[deprecated("Will be removed in a future version, use NetlistPreprocessingPlugin::remove_buffers instead.")]] CORE_API Result<u32> remove_buffers(Netlist* netlist,
                                                                                                                                                           bool analyze_inputs = false);
 
        [[deprecated("Will be removed in a future version, use NetlistPreprocessingPlugin::remove_unused_lut_inputs instead.")]] CORE_API Result<u32> remove_unused_lut_endpoints(Netlist* netlist);
 
        // TODO move to SubgraphNetlistDecorator
        CORE_API std::vector<Net*> get_common_inputs(const std::vector<Gate*>& gates, u32 threshold = 0);
 
        [[deprecated("Will be removed in a future version, use NetlistModificationDecorator::replace_gate instead.")]] CORE_API Result<std::monostate>
            replace_gate(Gate* gate, GateType* target_type, std::map<GatePin*, GatePin*> pin_map);
 
        CORE_API Result<std::vector<Gate*>> get_gate_chain(Gate* start_gate,
                                                           const std::vector<const GatePin*>& input_pins  = {},
                                                           const std::vector<const GatePin*>& output_pins = {},
                                                           const std::function<bool(const Gate*)>& filter = nullptr);
 
        CORE_API Result<std::vector<Gate*>> get_complex_gate_chain(Gate* start_gate,
                                                                   const std::vector<GateType*>& chain_types,
                                                                   const std::map<GateType*, std::vector<const GatePin*>>& input_pins,
                                                                   const std::map<GateType*, std::vector<const GatePin*>>& output_pins,
                                                                   const std::function<bool(const Gate*)>& filter = nullptr);
 
        CORE_API std::vector<Gate*> get_shortest_path(Gate* start_gate, Gate* end_gate, bool search_both_directions = false);
 
        CORE_API std::vector<Gate*> get_shortest_path(Gate* start_gate, Module* end_module, bool forward_direction);
    }    // namespace netlist_utils
}    // namespace hal