//===---- Mips16ISelDAGToDAG.h - A Dag to Dag Inst Selector for Mips ------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // Subclass of MipsDAGToDAGISel specialized for mips16. // //===----------------------------------------------------------------------===// #ifndef MIPS16ISELDAGTODAG_H #define MIPS16ISELDAGTODAG_H #include "MipsISelDAGToDAG.h" namespace llvm { class Mips16DAGToDAGISel : public MipsDAGToDAGISel { public: explicit Mips16DAGToDAGISel(MipsTargetMachine &TM) : MipsDAGToDAGISel(TM) {} private: std::pair<SDNode*, SDNode*> selectMULT(SDNode *N, unsigned Opc, SDLoc DL, EVT Ty, bool HasLo, bool HasHi); SDValue getMips16SPAliasReg(); virtual bool runOnMachineFunction(MachineFunction &MF); void getMips16SPRefReg(SDNode *Parent, SDValue &AliasReg); virtual bool selectAddr16(SDNode *Parent, SDValue N, SDValue &Base, SDValue &Offset, SDValue &Alias); virtual std::pair<bool, SDNode*> selectNode(SDNode *Node); virtual void processFunctionAfterISel(MachineFunction &MF); // Insert instructions to initialize the global base register in the // first MBB of the function. void initGlobalBaseReg(MachineFunction &MF); void initMips16SPAliasReg(MachineFunction &MF); }; FunctionPass *createMips16ISelDag(MipsTargetMachine &TM); } #endif