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//===- Solution.h - PBQP Solution -------------------------------*- C++ -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // PBQP Solution class. // //===----------------------------------------------------------------------===// #ifndef LLVM_CODEGEN_PBQP_SOLUTION_H #define LLVM_CODEGEN_PBQP_SOLUTION_H #include "llvm/CodeGen/PBQP/Graph.h" #include <cassert> #include <map> namespace llvm { namespace PBQP { /// \brief Represents a solution to a PBQP problem. /// /// To get the selection for each node in the problem use the getSelection method. class Solution { private: using SelectionsMap = std::map<GraphBase::NodeId, unsigned>; SelectionsMap selections; public: /// \brief Initialise an empty solution. Solution() = default; /// \brief Set the selection for a given node. /// @param nodeId Node id. /// @param selection Selection for nodeId. void setSelection(GraphBase::NodeId nodeId, unsigned selection) { selections[nodeId] = selection; } /// \brief Get a node's selection. /// @param nodeId Node id. /// @return The selection for nodeId; unsigned getSelection(GraphBase::NodeId nodeId) const { SelectionsMap::const_iterator sItr = selections.find(nodeId); assert(sItr != selections.end() && "No selection for node."); return sItr->second; } }; } // end namespace PBQP } // end namespace llvm #endif // LLVM_CODEGEN_PBQP_SOLUTION_H