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1 //
2 // Copyright © 2017 Arm Ltd. All rights reserved.
3 // SPDX-License-Identifier: MIT
4 //
5 
6 #pragma once
7 
8 #include <SubgraphView.hpp>
9 
10 namespace armnn
11 {
12 
13 class OptimizationViews
14 {
15 public:
16     OptimizationViews() = default;
17     OptimizationViews(const OptimizationViews&) = delete;
18     OptimizationViews& operator=(const OptimizationViews&) = delete;
19     OptimizationViews(OptimizationViews&&) = default;
20     OptimizationViews& operator=(OptimizationViews&&) = default;
21 
22     struct SubstitutionPair
23     {
24         /// Subgraph of Layers from the original graph which should be replaced
25         SubgraphView m_SubstitutableSubgraph;
26 
27         /// A subgraph of new layers which will replace layers in m_SubstitutableSubgraph
28         SubgraphView m_ReplacementSubgraph;
29     };
30 
31     using Subgraphs = std::vector<SubgraphView>;
32     using Substitutions = std::vector<SubstitutionPair>;
33 
AddSubstitution(SubstitutionPair && substitution)34     void AddSubstitution(SubstitutionPair&& substitution)
35     {
36         m_SuccesfulOptimizations.emplace_back(substitution);
37     }
38 
AddFailedSubgraph(SubgraphView && subgraph)39     void AddFailedSubgraph(SubgraphView&& subgraph)
40     {
41         m_FailedOptimizations.emplace_back(subgraph);
42     }
43 
AddUntouchedSubgraph(SubgraphView && subgraph)44     void AddUntouchedSubgraph(SubgraphView&& subgraph)
45     {
46         m_UntouchedSubgraphs.emplace_back(subgraph);
47     }
48 
GetSubstitutions() const49     const Substitutions& GetSubstitutions() const { return m_SuccesfulOptimizations; }
GetFailedSubgraphs() const50     const Subgraphs& GetFailedSubgraphs() const { return m_FailedOptimizations; }
GetUntouchedSubgraphs() const51     const Subgraphs& GetUntouchedSubgraphs() const { return m_UntouchedSubgraphs; }
52 
GetSubstitutions()53     Substitutions& GetSubstitutions() { return m_SuccesfulOptimizations; }
GetFailedSubgraphs()54     Subgraphs& GetFailedSubgraphs() { return m_FailedOptimizations; }
GetUntouchedSubgraphs()55     Subgraphs& GetUntouchedSubgraphs() { return m_UntouchedSubgraphs; }
56 
57     bool Validate(const SubgraphView& originalSubgraph) const;
58 
GetGraph()59     Graph& GetGraph() { return m_Graph; }
60 
61 private:
62     Substitutions m_SuccesfulOptimizations;     ///< Proposed substitutions from successful optimizations
63     Subgraphs m_FailedOptimizations;            ///< Subgraphs from the original subgraph which cannot be supported
64     Subgraphs m_UntouchedSubgraphs;             ///< Subgraphs from the original subgraph which remain unmodified
65 
66     /// Graph object used only as a container for any layer generated by the optimization process
67     Graph m_Graph;
68 };
69 
70 } //namespace armnn
71