LLVM  6.0.0svn
Public Member Functions | List of all members
llvm::HexagonRegisterInfo Class Reference

#include "Target/Hexagon/HexagonRegisterInfo.h"

Inheritance diagram for llvm::HexagonRegisterInfo:
Inheritance graph
Collaboration diagram for llvm::HexagonRegisterInfo:
Collaboration graph

Public Member Functions

 HexagonRegisterInfo (unsigned HwMode)
const MCPhysReggetCalleeSavedRegs (const MachineFunction *MF) const override
 Code Generation virtual methods... More...
const uint32_tgetCallPreservedMask (const MachineFunction &MF, CallingConv::ID) const override
BitVector getReservedRegs (const MachineFunction &MF) const override
void eliminateFrameIndex (MachineBasicBlock::iterator II, int SPAdj, unsigned FIOperandNum, RegScavenger *RS=nullptr) const override
bool requiresRegisterScavenging (const MachineFunction &MF) const override
 Returns true since we may need scavenging for a temporary register when generating hardware loop instructions. More...
bool requiresFrameIndexScavenging (const MachineFunction &MF) const override
 Returns true. More...
bool useFPForScavengingIndex (const MachineFunction &MF) const override
 Returns true if the frame pointer is valid. More...
bool trackLivenessAfterRegAlloc (const MachineFunction &MF) const override
unsigned getRARegister () const
unsigned getFrameRegister (const MachineFunction &MF) const override
unsigned getFrameRegister () const
unsigned getStackRegister () const
unsigned getHexagonSubRegIndex (const TargetRegisterClass &RC, unsigned GenIdx) const
const MCPhysReggetCallerSavedRegs (const MachineFunction *MF, const TargetRegisterClass *RC) const
unsigned getFirstCallerSavedNonParamReg () const
bool isEHReturnCalleeSaveReg (unsigned Reg) const

Detailed Description

Definition at line 30 of file HexagonRegisterInfo.h.

Constructor & Destructor Documentation

◆ HexagonRegisterInfo()

HexagonRegisterInfo::HexagonRegisterInfo ( unsigned  HwMode)

Definition at line 44 of file HexagonRegisterInfo.cpp.

Member Function Documentation

◆ eliminateFrameIndex()

void HexagonRegisterInfo::eliminateFrameIndex ( MachineBasicBlock::iterator  II,
int  SPAdj,
unsigned  FIOperandNum,
RegScavenger RS = nullptr 
) const

◆ getCalleeSavedRegs()

const MCPhysReg * HexagonRegisterInfo::getCalleeSavedRegs ( const MachineFunction MF) const

◆ getCallerSavedRegs()

const MCPhysReg * HexagonRegisterInfo::getCallerSavedRegs ( const MachineFunction MF,
const TargetRegisterClass RC 
) const

◆ getCallPreservedMask()

const uint32_t * HexagonRegisterInfo::getCallPreservedMask ( const MachineFunction MF,
) const

Definition at line 134 of file HexagonRegisterInfo.cpp.

◆ getFirstCallerSavedNonParamReg()

unsigned HexagonRegisterInfo::getFirstCallerSavedNonParamReg ( ) const

Definition at line 285 of file HexagonRegisterInfo.cpp.

References R6.

◆ getFrameRegister() [1/2]

unsigned HexagonRegisterInfo::getFrameRegister ( const MachineFunction MF) const

◆ getFrameRegister() [2/2]

unsigned HexagonRegisterInfo::getFrameRegister ( ) const

Definition at line 248 of file HexagonRegisterInfo.cpp.

Referenced by getFrameRegister().

◆ getHexagonSubRegIndex()

unsigned HexagonRegisterInfo::getHexagonSubRegIndex ( const TargetRegisterClass RC,
unsigned  GenIdx 
) const

◆ getRARegister()

unsigned HexagonRegisterInfo::getRARegister ( ) const

◆ getReservedRegs()

BitVector HexagonRegisterInfo::getReservedRegs ( const MachineFunction MF) const

◆ getStackRegister()

unsigned HexagonRegisterInfo::getStackRegister ( ) const

◆ isEHReturnCalleeSaveReg()

bool HexagonRegisterInfo::isEHReturnCalleeSaveReg ( unsigned  Reg) const

Definition at line 49 of file HexagonRegisterInfo.cpp.

References R2.

Referenced by llvm::HexagonFrameLowering::getFrameIndexReference().

◆ requiresFrameIndexScavenging()

bool llvm::HexagonRegisterInfo::requiresFrameIndexScavenging ( const MachineFunction MF) const

Returns true.

Spill code for predicate registers might need an extra register.

Definition at line 53 of file HexagonRegisterInfo.h.

◆ requiresRegisterScavenging()

bool llvm::HexagonRegisterInfo::requiresRegisterScavenging ( const MachineFunction MF) const

Returns true since we may need scavenging for a temporary register when generating hardware loop instructions.

Definition at line 47 of file HexagonRegisterInfo.h.

◆ trackLivenessAfterRegAlloc()

bool llvm::HexagonRegisterInfo::trackLivenessAfterRegAlloc ( const MachineFunction MF) const

Definition at line 60 of file HexagonRegisterInfo.h.

◆ useFPForScavengingIndex()

bool HexagonRegisterInfo::useFPForScavengingIndex ( const MachineFunction MF) const

Returns true if the frame pointer is valid.

Definition at line 279 of file HexagonRegisterInfo.cpp.

References llvm::MachineFunction::getSubtarget().

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