- LiveInterval &getOrCreateInterval(int Slot, const TargetRegisterClass *RC) {
- assert(Slot >= 0 && "Spill slot indice must be >= 0");
- SS2IntervalMap::iterator I = S2IMap.find(Slot);
- if (I == S2IMap.end()) {
- I = S2IMap.insert(I,std::make_pair(Slot, LiveInterval(Slot,0.0F,true)));
- S2RCMap.insert(std::make_pair(Slot, RC));
- } else {
- // Use the largest common subclass register class.
- const TargetRegisterClass *OldRC = S2RCMap[Slot];
- S2RCMap[Slot] = getCommonSubClass(OldRC, RC);
- }
- return I->second;
- }