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 public: 26 virtual ~Spiller() = 0; 27 28 /// spill - Spill the LRE.getParent() live interval. 29 virtual void spill(LiveRangeEdit &LRE) = 0; 30 31 }; 32 33 /// Create and return a spiller object, as specified on the command line. 34 Spiller* createSpiller(MachineFunctionPass &pass, 35 MachineFunction &mf, 36 VirtRegMap &vrm); 37 38 /// Create and return a spiller that will insert spill code directly instead 39 /// of deferring though VirtRegMap. 40 Spiller *createInlineSpiller(MachineFunctionPass &pass, 41 MachineFunction &mf, 42 VirtRegMap &vrm); 43 44 } 45 46 #endif 47
