Subversion Repositories QNX 8.QNX8 LLVM/Clang compiler suite

//===- llvm/CodeGen/Spiller.h - Spiller -------------------------*- C++ -*-===//

//

// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.

// See https://llvm.org/LICENSE.txt for license information.

// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

//

//===----------------------------------------------------------------------===//

#ifndef LLVM_CODEGEN_SPILLER_H

#define LLVM_CODEGEN_SPILLER_H

namespace llvm {

class LiveRangeEdit;

class MachineFunction;

class MachineFunctionPass;

class VirtRegMap;

class VirtRegAuxInfo;

/// 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, VirtRegAuxInfo &VRAI);

} // end namespace llvm

#endif // LLVM_CODEGEN_SPILLER_H