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;
27 /// Spiller interface.
29 /// Implementations are utility classes which insert spill or remat code on
33 virtual ~Spiller() = 0;
35 /// Spill the given live range. The method used will depend on the Spiller
36 /// implementation selected.
37 virtual std::vector<LiveInterval*> spill(LiveInterval *li,
38 SmallVectorImpl<LiveInterval*> &spillIs) = 0;
42 /// Create and return a spiller object, as specified on the command line.
43 Spiller* createSpiller(MachineFunction *mf, LiveIntervals *li,
44 const MachineLoopInfo *loopInfo, VirtRegMap *vrm);