Spiller.h revision 857c4e01f85601cf2084adb860616256ee47c177
1//===-- llvm/CodeGen/Spiller.h - Spiller -*- C++ -*------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10#ifndef LLVM_CODEGEN_SPILLER_H 11#define LLVM_CODEGEN_SPILLER_H 12 13#include <vector> 14 15namespace llvm { 16 class LiveInterval; 17 class LiveIntervals; 18 class LiveStacks; 19 class MachineFunction; 20 class VirtRegMap; 21 class MachineInstr; 22 23 /// Spiller interface. 24 /// 25 /// Implementations are utility classes which insert spill or remat code on 26 /// demand. 27 class Spiller { 28 public: 29 virtual ~Spiller() = 0; 30 31 /// Spill the given live range. The method used will depend on the Spiller 32 /// implementation selected. 33 virtual std::vector<LiveInterval*> spill(LiveInterval *li) = 0; 34 35 }; 36 37 /// Create and return a spiller object, as specified on the command line. 38 Spiller* createSpiller(MachineFunction *mf, LiveIntervals *li, 39 LiveStacks *ls, VirtRegMap *vrm); 40} 41 42#endif 43