Lines Matching defs:Head

276   MachineOperand *const Head = HeadRef;
278   // Head points to the first list element.
280   // Prev pointers are circular, so Head->Prev == Last.
282   // Head is NULL for an empty list.
283   if (!Head) {
289   assert(MO->getReg() == Head->getReg() && "Different regs on the same list!");
291   // Insert MO between Last and Head in the circular Prev chain.
292   MachineOperand *Last = Head->Contents.Reg.Prev;
295   Head->Contents.Reg.Prev = MO;
302     MO->Contents.Reg.Next = Head;
315   MachineOperand *const Head = HeadRef;
316   assert(Head && "List already empty");
322   // Prev links are circular, next link is NULL instead of looping back to Head.
323   if (MO == Head)
328   (Next ? Next : Head)->Contents.Reg.Prev = Prev;
360       MachineOperand *&Head = getRegUseDefListHead(Src->getReg());
363       assert(Head && "List empty, but operand is chained");
367       // Head.
368       if (Src == Head)
369         Head = Dst;
374       // in a 1-element list. In that case Head == Dst.
375       (Next ? Next : Head)->Contents.Reg.Prev = Dst;