#ifndef LLVM_LIB_TARGET_MIPS_MIPS16INSTRINFO_H
#define LLVM_LIB_TARGET_MIPS_MIPS16INSTRINFO_H
#include "Mips16RegisterInfo.h"
#include "MipsInstrInfo.h"
namespace llvm {
class MipsSubtarget;
class Mips16InstrInfo : public MipsInstrInfo {
const Mips16RegisterInfo RI;
public:
explicit Mips16InstrInfo(const MipsSubtarget &STI);
const MipsRegisterInfo &getRegisterInfo() const override;
unsigned isLoadFromStackSlot(const MachineInstr *MI,
int &FrameIndex) const override;
unsigned isStoreToStackSlot(const MachineInstr *MI,
int &FrameIndex) const override;
void copyPhysReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI, DebugLoc DL,
unsigned DestReg, unsigned SrcReg,
bool KillSrc) const override;
void storeRegToStack(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MBBI,
unsigned SrcReg, bool isKill, int FrameIndex,
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI,
int64_t Offset) const override;
void loadRegFromStack(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MBBI,
unsigned DestReg, int FrameIndex,
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI,
int64_t Offset) const override;
bool expandPostRAPseudo(MachineBasicBlock::iterator MI) const override;
unsigned getOppositeBranchOpc(unsigned Opc) const override;
void makeFrame(unsigned SP, int64_t FrameSize, MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;
void restoreFrame(unsigned SP, int64_t FrameSize, MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;
void adjustStackPtr(unsigned SP, int64_t Amount, MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;
unsigned loadImmediate(unsigned FrameReg,
int64_t Imm, MachineBasicBlock &MBB,
MachineBasicBlock::iterator II, DebugLoc DL,
unsigned &NewImm) const;
static bool validImmediate(unsigned Opcode, unsigned Reg, int64_t Amount);
static bool validSpImm8(int offset) {
return ((offset & 7) == 0) && isInt<11>(offset);
}
const MCInstrDesc& AddiuSpImm(int64_t Imm) const;
void BuildAddiuSpImm
(MachineBasicBlock &MBB, MachineBasicBlock::iterator I, int64_t Imm) const;
unsigned getInlineAsmLength(const char *Str,
const MCAsmInfo &MAI) const override;
private:
unsigned getAnalyzableBrOpc(unsigned Opc) const override;
void ExpandRetRA16(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
unsigned Opc) const;
void adjustStackPtrBig(unsigned SP, int64_t Amount, MachineBasicBlock &MBB,
MachineBasicBlock::iterator I,
unsigned Reg1, unsigned Reg2) const;
void adjustStackPtrBigUnrestricted(unsigned SP, int64_t Amount,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;
};
}
#endif