llvm::XtensaRegisterInfo Class Reference

#include "Target/Xtensa/XtensaRegisterInfo.h"

Inheritance diagram for llvm::XtensaRegisterInfo:

Public Member Functions
	XtensaRegisterInfo (const XtensaSubtarget &STI)
bool	requiresRegisterScavenging (const MachineFunction &MF) const override
bool	requiresFrameIndexScavenging (const MachineFunction &MF) const override
const uint16_t *	getCalleeSavedRegs (const MachineFunction *MF=0) const override
const uint32_t *	getCallPreservedMask (const MachineFunction &MF, CallingConv::ID) const override
BitVector	getReservedRegs (const MachineFunction &MF) const override
bool	eliminateFrameIndex (MachineBasicBlock::iterator MI, int SPAdj, unsigned FIOperandNum, RegScavenger *RS=nullptr) const override
Register	getFrameRegister (const MachineFunction &MF) const override

Public Attributes
const XtensaSubtarget &	Subtarget

Detailed Description

Definition at line 27 of file XtensaRegisterInfo.h.

Constructor & Destructor Documentation

XtensaRegisterInfo()

XtensaRegisterInfo::XtensaRegisterInfo

(

const XtensaSubtarget &

STI

)

Definition at line 32 of file XtensaRegisterInfo.cpp.

Member Function Documentation

eliminateFrameIndex()

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

override

Definition at line 61 of file XtensaRegisterInfo.cpp.

References llvm::MachineInstrBuilder::addReg(), llvm::BuildMI(), DL, llvm::MachineFrameInfo::getCalleeSavedInfo(), llvm::MachineFunction::getFrameInfo(), getFrameRegister(), llvm::TargetSubtargetInfo::getInstrInfo(), llvm::MachineFrameInfo::getObjectOffset(), llvm::MachineBasicBlock::getParent(), llvm::MachineFrameInfo::getStackSize(), llvm::MachineFunction::getSubtarget(), II, llvm::isValidAddrOffset(), llvm::RegState::Kill, MBB, MI, llvm::Offset, and TII.

getCalleeSavedRegs()

const uint16_t * XtensaRegisterInfo::getCalleeSavedRegs ( const MachineFunction *  MF = 0 ) const

override

Definition at line 36 of file XtensaRegisterInfo.cpp.

getCallPreservedMask()

const uint32_t * XtensaRegisterInfo::getCallPreservedMask ( const MachineFunction &  MF, CallingConv::ID    ) const

override

Definition at line 41 of file XtensaRegisterInfo.cpp.

getFrameRegister()

Register XtensaRegisterInfo::getFrameRegister ( const MachineFunction &  MF ) const

override

Definition at line 130 of file XtensaRegisterInfo.cpp.

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

Referenced by llvm::XtensaFrameLowering::determineCalleeSaves(), eliminateFrameIndex(), llvm::XtensaFrameLowering::emitEpilogue(), llvm::XtensaFrameLowering::emitPrologue(), and getReservedRegs().

getReservedRegs()

BitVector XtensaRegisterInfo::getReservedRegs ( const MachineFunction &  MF ) const

override

Definition at line 46 of file XtensaRegisterInfo.cpp.

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

requiresFrameIndexScavenging()

bool llvm::XtensaRegisterInfo::requiresFrameIndexScavenging ( const MachineFunction &  MF ) const

inlineoverride

Definition at line 37 of file XtensaRegisterInfo.h.

requiresRegisterScavenging()

bool llvm::XtensaRegisterInfo::requiresRegisterScavenging ( const MachineFunction &  MF ) const

inlineoverride

Definition at line 33 of file XtensaRegisterInfo.h.

Member Data Documentation

Subtarget

const XtensaSubtarget& llvm::XtensaRegisterInfo::Subtarget

Definition at line 29 of file XtensaRegisterInfo.h.

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

• lib/Target/Xtensa/XtensaRegisterInfo.h
• lib/Target/Xtensa/XtensaRegisterInfo.cpp