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//===-- MipsSEISelDAGToDAG.h - A Dag to Dag Inst Selector for MipsSE -----===//
//
// 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 mips32/64.
//
//===----------------------------------------------------------------------===//
#ifndef MIPSSEISELDAGTODAG_H
#define MIPSSEISELDAGTODAG_H
#include "MipsISelDAGToDAG.h"
namespace llvm {
class MipsSEDAGToDAGISel : public MipsDAGToDAGISel {
public:
explicit MipsSEDAGToDAGISel(MipsTargetMachine &TM) : MipsDAGToDAGISel(TM) {}
private:
bool replaceUsesWithZeroReg(MachineRegisterInfo *MRI, const MachineInstr&);
std::pair<SDNode*, SDNode*> selectMULT(SDNode *N, unsigned Opc, DebugLoc dl,
EVT Ty, bool HasLo, bool HasHi);
SDNode *selectAddESubE(unsigned MOp, SDValue InFlag, SDValue CmpLHS,
DebugLoc DL, SDNode *Node) const;
virtual bool selectAddrRegImm(SDValue Addr, SDValue &Base,
SDValue &Offset) const;
virtual bool selectAddrDefault(SDValue Addr, SDValue &Base,
SDValue &Offset) const;
virtual bool selectIntAddr(SDValue Addr, SDValue &Base,
SDValue &Offset) const;
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);
};
FunctionPass *createMipsSEISelDag(MipsTargetMachine &TM);
}
#endif
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