Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 14 | pmbaty | 1 | //===- Solution.h - PBQP Solution -------------------------------*- C++ -*-===// |
| 2 | // |
||
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
||
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
||
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
||
| 6 | // |
||
| 7 | //===----------------------------------------------------------------------===// |
||
| 8 | // |
||
| 9 | // PBQP Solution class. |
||
| 10 | // |
||
| 11 | //===----------------------------------------------------------------------===// |
||
| 12 | |||
| 13 | #ifndef LLVM_CODEGEN_PBQP_SOLUTION_H |
||
| 14 | #define LLVM_CODEGEN_PBQP_SOLUTION_H |
||
| 15 | |||
| 16 | #include "llvm/CodeGen/PBQP/Graph.h" |
||
| 17 | #include <cassert> |
||
| 18 | #include <map> |
||
| 19 | |||
| 20 | namespace llvm { |
||
| 21 | namespace PBQP { |
||
| 22 | |||
| 23 | /// Represents a solution to a PBQP problem. |
||
| 24 | /// |
||
| 25 | /// To get the selection for each node in the problem use the getSelection method. |
||
| 26 | class Solution { |
||
| 27 | private: |
||
| 28 | using SelectionsMap = std::map<GraphBase::NodeId, unsigned>; |
||
| 29 | SelectionsMap selections; |
||
| 30 | |||
| 31 | public: |
||
| 32 | /// Initialise an empty solution. |
||
| 33 | Solution() = default; |
||
| 34 | |||
| 35 | /// Set the selection for a given node. |
||
| 36 | /// @param nodeId Node id. |
||
| 37 | /// @param selection Selection for nodeId. |
||
| 38 | void setSelection(GraphBase::NodeId nodeId, unsigned selection) { |
||
| 39 | selections[nodeId] = selection; |
||
| 40 | } |
||
| 41 | |||
| 42 | /// Get a node's selection. |
||
| 43 | /// @param nodeId Node id. |
||
| 44 | /// @return The selection for nodeId; |
||
| 45 | unsigned getSelection(GraphBase::NodeId nodeId) const { |
||
| 46 | SelectionsMap::const_iterator sItr = selections.find(nodeId); |
||
| 47 | assert(sItr != selections.end() && "No selection for node."); |
||
| 48 | return sItr->second; |
||
| 49 | } |
||
| 50 | }; |
||
| 51 | |||
| 52 | } // end namespace PBQP |
||
| 53 | } // end namespace llvm |
||
| 54 | |||
| 55 | #endif // LLVM_CODEGEN_PBQP_SOLUTION_H |