1 //===-- llvm/CodeGen/Spiller.h - Spiller -*- C++ -*------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef LLVM_LIB_CODEGEN_SPILLER_H 11 #define LLVM_LIB_CODEGEN_SPILLER_H 12 13 namespace llvm { 14 15 class LiveRangeEdit; 16 class MachineFunction; 17 class MachineFunctionPass; 18 class VirtRegMap; 19 class LiveIntervals; 20 21 /// Spiller interface. 22 /// 23 /// Implementations are utility classes which insert spill or remat code on 24 /// demand. 25 class Spiller { 26 virtual void anchor(); 27 public: 28 virtual ~Spiller() = 0; 29 30 /// spill - Spill the LRE.getParent() live interval. 31 virtual void spill(LiveRangeEdit &LRE) = 0; 32 virtual void postOptimization(){}; 33 }; 34 35 /// Create and return a spiller that will insert spill code directly instead 36 /// of deferring though VirtRegMap. 37 Spiller *createInlineSpiller(MachineFunctionPass &pass, 38 MachineFunction &mf, 39 VirtRegMap &vrm); 40 } 41 42 #endif 43
