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_LIB_CODEGEN_SPILLER_H
11 #define LLVM_LIB_CODEGEN_SPILLER_H
16 class MachineFunction;
17 class MachineFunctionPass;
21 /// Spiller interface.
23 /// Implementations are utility classes which insert spill or remat code on
26 virtual void anchor();
28 virtual ~Spiller() = 0;
30 /// spill - Spill the LRE.getParent() live interval.
31 virtual void spill(LiveRangeEdit &LRE) = 0;
32 virtual void postOptimization(){};
35 /// Create and return a spiller that will insert spill code directly instead
36 /// of deferring though VirtRegMap.
37 Spiller *createInlineSpiller(MachineFunctionPass &pass,