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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_LIB_CODEGEN_SPILLER_H
#define LLVM_LIB_CODEGEN_SPILLER_H
namespace llvm {
class LiveRangeEdit;
class MachineFunction;
class MachineFunctionPass;
class VirtRegMap;
/// Spiller interface.
///
/// Implementations are utility classes which insert spill or remat code on
/// demand.
class Spiller {
virtual void anchor();
public:
virtual ~Spiller() = 0;
/// spill - Spill the LRE.getParent() live interval.
virtual void spill(LiveRangeEdit &LRE) = 0;
virtual void postOptimization() {}
};
/// Create and return a spiller that will insert spill code directly instead
/// of deferring though VirtRegMap.
Spiller *createInlineSpiller(MachineFunctionPass &pass,
MachineFunction &mf,
VirtRegMap &vrm);
} // end namespace llvm
#endif // LLVM_LIB_CODEGEN_SPILLER_H
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