1 //===-- llvm/CodeGen/Spiller.h - Spiller -*- C++ -*------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef LLVM_CODEGEN_SPILLER_H
11 #define LLVM_CODEGEN_SPILLER_H
13 #include "llvm/ADT/SmallVector.h"
21 class MachineFunction;
23 class MachineLoopInfo;
28 /// Spiller interface.
30 /// Implementations are utility classes which insert spill or remat code on
34 virtual ~Spiller() = 0;
36 /// Spill the given live range. The method used will depend on the Spiller
37 /// implementation selected.
38 virtual std::vector<LiveInterval*> spill(LiveInterval *li,
39 SmallVectorImpl<LiveInterval*> &spillIs,
40 SlotIndex *earliestIndex = 0) = 0;
44 /// Create and return a spiller object, as specified on the command line.
45 Spiller* createSpiller(MachineFunction *mf, LiveIntervals *li,
46 const MachineLoopInfo *loopInfo, VirtRegMap *vrm);