freebsd-dev/lib/CodeGen/Spiller.h

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//===-- llvm/CodeGen/Spiller.h - Spiller -*- C++ -*------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_SPILLER_H
#define LLVM_CODEGEN_SPILLER_H
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#include "llvm/ADT/SmallVector.h"
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#include <vector>
namespace llvm {
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class LiveInterval;
class LiveIntervals;
class LiveStacks;
class MachineFunction;
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class MachineInstr;
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class MachineLoopInfo;
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class VirtRegMap;
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class VNInfo;
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/// Spiller interface.
///
/// Implementations are utility classes which insert spill or remat code on
/// demand.
class Spiller {
public:
virtual ~Spiller() = 0;
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/// Spill the given live range. The method used will depend on the Spiller
/// implementation selected.
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virtual std::vector<LiveInterval*> spill(LiveInterval *li,
SmallVectorImpl<LiveInterval*> &spillIs) = 0;
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};
/// Create and return a spiller object, as specified on the command line.
Spiller* createSpiller(MachineFunction *mf, LiveIntervals *li,
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const MachineLoopInfo *loopInfo, VirtRegMap *vrm);
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}
#endif