llvm::AVRRegisterInfo Class Reference

Utilities relating to AVR registers. More...

#include "Target/AVR/AVRRegisterInfo.h"

Inheritance diagram for llvm::AVRRegisterInfo:

Public Member Functions
	AVRRegisterInfo ()
const uint16_t *	getCalleeSavedRegs (const MachineFunction *MF=nullptr) const override
const uint32_t *	getCallPreservedMask (const MachineFunction &MF, CallingConv::ID CC) const override
BitVector	getReservedRegs (const MachineFunction &MF) const override
const TargetRegisterClass *	getLargestLegalSuperClass (const TargetRegisterClass *RC, const MachineFunction &MF) const override
bool	eliminateFrameIndex (MachineBasicBlock::iterator MI, int SPAdj, unsigned FIOperandNum, RegScavenger *RS=nullptr) const override
	Stack Frame Processing Methods.
Register	getFrameRegister (const MachineFunction &MF) const override
const TargetRegisterClass *	getPointerRegClass (const MachineFunction &MF, unsigned Kind=0) const override
void	splitReg (Register Reg, Register &LoReg, Register &HiReg) const
	Splits a 16-bit DREGS register into the lo/hi register pair.
bool	shouldCoalesce (MachineInstr *MI, const TargetRegisterClass *SrcRC, unsigned SubReg, const TargetRegisterClass *DstRC, unsigned DstSubReg, const TargetRegisterClass *NewRC, LiveIntervals &LIS) const override

Detailed Description

Utilities relating to AVR registers.

Definition at line 24 of file AVRRegisterInfo.h.

Constructor & Destructor Documentation

AVRRegisterInfo()

llvm::AVRRegisterInfo::AVRRegisterInfo

(

)

Definition at line 32 of file AVRRegisterInfo.cpp.

Member Function Documentation

eliminateFrameIndex()

bool llvm::AVRRegisterInfo::eliminateFrameIndex ( MachineBasicBlock::iterator  MI, int  SPAdj, unsigned  FIOperandNum, RegScavenger *  RS = nullptr  ) const

override

Stack Frame Processing Methods.

Definition at line 141 of file AVRRegisterInfo.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), assert(), llvm::BuildMI(), llvm::foldFrameOffset(), llvm::MachineFunction::getFrameInfo(), llvm::AVRSubtarget::getIORegSREG(), llvm::MachineFrameInfo::getObjectOffset(), llvm::TargetFrameLowering::getOffsetOfLocalArea(), llvm::MachineFrameInfo::getStackSize(), llvm::MachineFunction::getSubtarget(), llvm::MachineFunction::getTarget(), llvm::AVRSubtarget::getTmpRegister(), II, llvm::RegState::Kill, MBB, MI, llvm::Offset, splitReg(), and TII.

getCalleeSavedRegs()

const uint16_t * llvm::AVRRegisterInfo::getCalleeSavedRegs ( const MachineFunction *  MF = nullptr ) const

override

Definition at line 35 of file AVRRegisterInfo.cpp.

References llvm::MachineFunction::getInfo(), llvm::MachineFunction::getSubtarget(), and llvm::AVRMachineFunctionInfo::isInterruptOrSignalHandler().

getCallPreservedMask()

const uint32_t * llvm::AVRRegisterInfo::getCallPreservedMask ( const MachineFunction &  MF, CallingConv::ID  CC  ) const

override

Definition at line 47 of file AVRRegisterInfo.cpp.

References llvm::MachineFunction::getSubtarget().

getFrameRegister()

Register llvm::AVRRegisterInfo::getFrameRegister ( const MachineFunction &  MF ) const

override

Definition at line 284 of file AVRRegisterInfo.cpp.

References llvm::TargetSubtargetInfo::getFrameLowering(), llvm::MachineFunction::getSubtarget(), and llvm::TargetFrameLowering::hasFP().

getLargestLegalSuperClass()

const TargetRegisterClass * llvm::AVRRegisterInfo::getLargestLegalSuperClass ( const TargetRegisterClass *  RC, const MachineFunction &  MF  ) const

override

Definition at line 95 of file AVRRegisterInfo.cpp.

References llvm::TargetSubtargetInfo::getRegisterInfo(), llvm::MachineFunction::getSubtarget(), llvm_unreachable, and TRI.

getPointerRegClass()

const TargetRegisterClass * llvm::AVRRegisterInfo::getPointerRegClass ( const MachineFunction &  MF, unsigned  Kind = 0  ) const

override

Definition at line 295 of file AVRRegisterInfo.cpp.

getReservedRegs()

BitVector llvm::AVRRegisterInfo::getReservedRegs ( const MachineFunction &  MF ) const

override

Definition at line 53 of file AVRRegisterInfo.cpp.

References llvm::MachineFunction::getSubtarget(), Reg, and llvm::Reserved.

shouldCoalesce()

bool llvm::AVRRegisterInfo::shouldCoalesce ( MachineInstr *  MI, const TargetRegisterClass *  SrcRC, unsigned  SubReg, const TargetRegisterClass *  DstRC, unsigned  DstSubReg, const TargetRegisterClass *  NewRC, LiveIntervals &  LIS  ) const

override

Definition at line 311 of file AVRRegisterInfo.cpp.

References getRegClass(), MI, llvm::TargetRegisterInfo::shouldCoalesce(), and SubReg.

splitReg()

void llvm::AVRRegisterInfo::splitReg	(	Register	Reg,
		Register &	LoReg,
		Register &	HiReg
	)		const

Splits a 16-bit DREGS register into the lo/hi register pair.

Parameters

Reg	A 16-bit register to split.

Definition at line 303 of file AVRRegisterInfo.cpp.

References assert(), contains(), and Reg.

Referenced by eliminateFrameIndex().

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The documentation for this class was generated from the following files:

• lib/Target/AVR/AVRRegisterInfo.h
• lib/Target/AVR/AVRRegisterInfo.cpp