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//===---- 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 LLVM_LIB_TARGET_MIPS_MIPS16ISELDAGTODAG_H
#define LLVM_LIB_TARGET_MIPS_MIPS16ISELDAGTODAG_H
#include "MipsISelDAGToDAG.h"
namespace llvm {
class Mips16DAGToDAGISel : public MipsDAGToDAGISel {
public:
explicit Mips16DAGToDAGISel(MipsTargetMachine &TM, CodeGenOpt::Level OL)
: MipsDAGToDAGISel(TM, OL) {}
private:
std::pair<SDNode *, SDNode *> selectMULT(SDNode *N, unsigned Opc,
const SDLoc &DL, EVT Ty, bool HasLo,
bool HasHi);
bool runOnMachineFunction(MachineFunction &MF) override;
bool selectAddr(bool SPAllowed, SDValue Addr, SDValue &Base,
SDValue &Offset);
bool selectAddr16(SDValue Addr, SDValue &Base,
SDValue &Offset) override;
bool selectAddr16SP(SDValue Addr, SDValue &Base,
SDValue &Offset) override;
bool trySelect(SDNode *Node) override;
void processFunctionAfterISel(MachineFunction &MF) override;
// 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,
CodeGenOpt::Level OptLevel);
}
#endif
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