57   const TargetRegisterClass *NewRC = TRI->getCommonSubClass(OldRC, RC);  in constrainRegClass()  local
58   if (!NewRC || NewRC == OldRC)  in constrainRegClass()
59     return NewRC;  in constrainRegClass()
60   if (NewRC->getNumRegs() < MinNumRegs)  in constrainRegClass()
62   setRegClass(Reg, NewRC);  in constrainRegClass()
63   return NewRC;  in constrainRegClass()
70   const TargetRegisterClass *NewRC = TRI->getLargestLegalSuperClass(OldRC);  in recomputeRegClass()  local
73   if (NewRC == OldRC)  in recomputeRegClass()
85       NewRC = TRI->getCommonSubClass(NewRC, OpRC);  in recomputeRegClass()
86     if (!NewRC || NewRC == OldRC)  in recomputeRegClass()
89   setRegClass(Reg, NewRC);  in recomputeRegClass()