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
20 class MachineFunction;
25 /// Spiller interface.
27 /// Implementations are utility classes which insert spill or remat code on
31 virtual ~Spiller() = 0;
33 /// Spill the given live range. The method used will depend on the Spiller
34 /// implementation selected.
35 virtual std::vector<LiveInterval*> spill(LiveInterval *li) = 0;
37 /// Intra-block split.
38 virtual std::vector<LiveInterval*> intraBlockSplit(LiveInterval *li,
43 /// Create and return a spiller object, as specified on the command line.
44 Spiller* createSpiller(MachineFunction *mf, LiveIntervals *li,
45 LiveStacks *ls, VirtRegMap *vrm);