1 //===-- llvm/CodeGen/AllocationOrder.h - Allocation Order -*- C++ -*-------===//
9 // This file implements an allocation order for virtual registers.
11 // The preferred allocation order for a virtual register depends on allocation
32   ArrayRef<MCPhysReg> Order;  variable
33   // How far into the Order we can iterate. This is 0 if the AllocationOrder is
34   // constructed with HardHints = true, Order.size() otherwise. While
37   // avoid warnings and under the assumption that the size of Order is
54     /// Return the next physical register in the allocation order.
59       return AO.Order[Pos];
67       while (Pos >= 0 && Pos < AO.IterationLimit && AO.isHint(AO.Order[Pos]))
88   /// Create an AllocationOrder given the Hits, Order, and HardHits values.
90   AllocationOrder(SmallVector<MCPhysReg, 16> &&Hints, ArrayRef<MCPhysReg> Order,  in AllocationOrder()  argument
92       : Hints(std::move(Hints)), Order(Order),  in AllocationOrder()
93         IterationLimit(HardHints ? 0 : static_cast<int>(Order.size())) {}  in AllocationOrder()
102     assert(OrderLimit <= Order.size());  in getOrderLimitEnd()
110   /// Get the allocation order without reordered hints.
111   ArrayRef<MCPhysReg> getOrder() const { return Order; }  in getOrder()