text: //===- 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_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
  