Lines Matching defs:Head

279   MachineOperand *const Head = HeadRef;
281   // Head points to the first list element.
283   // Prev pointers are circular, so Head->Prev == Last.
285   // Head is NULL for an empty list.
286   if (!Head) {
292   assert(MO->getReg() == Head->getReg() && "Different regs on the same list!");
294   // Insert MO between Last and Head in the circular Prev chain.
295   MachineOperand *Last = Head->Contents.Reg.Prev;
298   Head->Contents.Reg.Prev = MO;
305     MO->Contents.Reg.Next = Head;
318   MachineOperand *const Head = HeadRef;
319   assert(Head && "List already empty");
325   // Prev links are circular, next link is NULL instead of looping back to Head.
326   if (MO == Head)
331   (Next ? Next : Head)->Contents.Reg.Prev = Prev;
363       MachineOperand *&Head = getRegUseDefListHead(Src->getReg());
366       assert(Head && "List empty, but operand is chained");
370       // Head.
371       if (Src == Head)
372         Head = Dst;
377       // in a 1-element list. In that case Head == Dst.
378       (Next ? Next : Head)->Contents.Reg.Prev = Dst;