189 /// Set spill costs for each node in the PBQP reg-alloc graph.
195     // A minimum spill costs, so that register constraints can be set  in apply()
404     // Try looking the edge costs up in the IMatrixCache first.  in createInterferenceEdge()
483             PBQPRAGraph::RawMatrix Costs(Allowed1->size() + 1,  in apply()  local
485             addVirtRegCoalesce(Costs, *Allowed1, *Allowed2, CBenefit);  in apply()
486             G.addEdge(N1Id, N2Id, std::move(Costs));  in apply()
492             PBQPRAGraph::RawMatrix Costs(G.getEdgeCosts(EId));  in apply()  local
493             addVirtRegCoalesce(Costs, *Allowed1, *Allowed2, CBenefit);  in apply()
494             G.updateEdgeCosts(EId, std::move(Costs));  in apply()
903     const Vector &Costs = getNodeCosts(NId);  in dump()  local
904     assert(Costs.getLength() != 0 && "Empty vector in graph.");  in dump()
905     OS << PrintNodeInfo(NId, *this) << ": " << Costs << '\n';  in dump()