192     const auto *MRegs = &G.getNodeMetadata(MId).getAllowedRegs();  in haveDisjointAllowedRegs()  local
194     if (NRegs == MRegs)  in haveDisjointAllowedRegs()
197     if (NRegs < MRegs)  in haveDisjointAllowedRegs()
198       return D.count(IKey(NRegs, MRegs)) > 0;  in haveDisjointAllowedRegs()
200     return D.count(IKey(MRegs, NRegs)) > 0;  in haveDisjointAllowedRegs()
207     const auto *MRegs = &G.getNodeMetadata(MId).getAllowedRegs();  in setDisjointAllowedRegs()  local
209     assert(NRegs != MRegs && "AllowedRegs can not be disjoint with itself");  in setDisjointAllowedRegs()
211     if (NRegs < MRegs)  in setDisjointAllowedRegs()
212       D.insert(IKey(NRegs, MRegs));  in setDisjointAllowedRegs()
214       D.insert(IKey(MRegs, NRegs));  in setDisjointAllowedRegs()
369     const auto &MRegs = G.getNodeMetadata(MId).getAllowedRegs();  in createInterferenceEdge()  local
372     IKey K(&NRegs, &MRegs);  in createInterferenceEdge()
379     PBQPRAGraph::RawMatrix M(NRegs.size() + 1, MRegs.size() + 1, 0);  in createInterferenceEdge()
383       for (unsigned J = 0; J != MRegs.size(); ++J) {  in createInterferenceEdge()
384         unsigned PRegM = MRegs[J];  in createInterferenceEdge()