1 //===-- MipsSEISelDAGToDAG.h - A Dag to Dag Inst Selector for MipsSE -----===// 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 // Subclass of MipsDAGToDAGISel specialized for mips32/64. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef MIPSSEISELDAGTODAG_H 15 #define MIPSSEISELDAGTODAG_H 16 17 #include "MipsISelDAGToDAG.h" 18 19 namespace llvm { 20 21 class MipsSEDAGToDAGISel : public MipsDAGToDAGISel { 22 23 public: 24 explicit MipsSEDAGToDAGISel(MipsTargetMachine &TM) : MipsDAGToDAGISel(TM) {} 25 26 private: 27 bool replaceUsesWithZeroReg(MachineRegisterInfo *MRI, const MachineInstr&); 28 29 std::pair<SDNode*, SDNode*> selectMULT(SDNode *N, unsigned Opc, DebugLoc dl, 30 EVT Ty, bool HasLo, bool HasHi); 31 32 SDNode *selectAddESubE(unsigned MOp, SDValue InFlag, SDValue CmpLHS, 33 DebugLoc DL, SDNode *Node) const; 34 35 virtual bool selectAddrRegImm(SDValue Addr, SDValue &Base, 36 SDValue &Offset) const; 37 38 virtual bool selectAddrDefault(SDValue Addr, SDValue &Base, 39 SDValue &Offset) const; 40 41 virtual bool selectIntAddr(SDValue Addr, SDValue &Base, 42 SDValue &Offset) const; 43 44 virtual std::pair<bool, SDNode*> selectNode(SDNode *Node); 45 46 virtual void processFunctionAfterISel(MachineFunction &MF); 47 48 // Insert instructions to initialize the global base register in the 49 // first MBB of the function. 50 void initGlobalBaseReg(MachineFunction &MF); 51 }; 52 53 FunctionPass *createMipsSEISelDag(MipsTargetMachine &TM); 54 55 } 56 57 #endif 58
