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_CODEGEN_SPILLER_H 11 #define LLVM_CODEGEN_SPILLER_H 12 13 namespace llvm { 14 15 class LiveRangeEdit; 16 class MachineFunction; 17 class MachineFunctionPass; 18 class VirtRegMap; 19 20 /// Spiller interface. 21 /// 22 /// Implementations are utility classes which insert spill or remat code on 23 /// demand. 24 class Spiller { 25 virtual void anchor(); 26 public: 27 virtual ~Spiller() = 0; 28 29 /// spill - Spill the LRE.getParent() live interval. 30 virtual void spill(LiveRangeEdit &LRE) = 0; 31 32 }; 33 34 /// Create and return a spiller object, as specified on the command line. 35 Spiller* createSpiller(MachineFunctionPass &pass, 36 MachineFunction &mf, 37 VirtRegMap &vrm); 38 39 /// Create and return a spiller that will insert spill code directly instead 40 /// of deferring though VirtRegMap. 41 Spiller *createInlineSpiller(MachineFunctionPass &pass, 42 MachineFunction &mf, 43 VirtRegMap &vrm); 44 45 } 46 47 #endif 48
