LLVM 20.0.0git
Public Member Functions | List of all members
llvm::ThumbRegisterInfo Struct Reference

#include "Target/ARM/ThumbRegisterInfo.h"

Inheritance diagram for llvm::ThumbRegisterInfo:
Inheritance graph
[legend]

Public Member Functions

 ThumbRegisterInfo ()
 
const TargetRegisterClassgetLargestLegalSuperClass (const TargetRegisterClass *RC, const MachineFunction &MF) const override
 
const TargetRegisterClassgetPointerRegClass (const MachineFunction &MF, unsigned Kind=0) const override
 
void emitLoadConstPool (MachineBasicBlock &MBB, MachineBasicBlock::iterator &MBBI, const DebugLoc &dl, Register DestReg, unsigned SubIdx, int Val, ARMCC::CondCodes Pred=ARMCC::AL, Register PredReg=Register(), unsigned MIFlags=MachineInstr::NoFlags) const override
 emitLoadConstPool - Emits a load from constpool to materialize the specified immediate.
 
bool rewriteFrameIndex (MachineBasicBlock::iterator II, unsigned FrameRegIdx, Register FrameReg, int &Offset, const ARMBaseInstrInfo &TII) const
 
void resolveFrameIndex (MachineInstr &MI, Register BaseReg, int64_t Offset) const override
 
bool eliminateFrameIndex (MachineBasicBlock::iterator II, int SPAdj, unsigned FIOperandNum, RegScavenger *RS=nullptr) const override
 
bool useFPForScavengingIndex (const MachineFunction &MF) const override
 
- Public Member Functions inherited from llvm::ARMBaseRegisterInfo
const MCPhysReggetCalleeSavedRegs (const MachineFunction *MF) const override
 Code Generation virtual methods...
 
const MCPhysReggetCalleeSavedRegsViaCopy (const MachineFunction *MF) const
 
const uint32_tgetCallPreservedMask (const MachineFunction &MF, CallingConv::ID) const override
 
const uint32_tgetNoPreservedMask () const override
 
const uint32_tgetTLSCallPreservedMask (const MachineFunction &MF) const
 
const uint32_tgetSjLjDispatchPreservedMask (const MachineFunction &MF) const
 
const uint32_tgetThisReturnPreservedMask (const MachineFunction &MF, CallingConv::ID) const
 getThisReturnPreservedMask - Returns a call preserved mask specific to the case that 'returned' is on an i32 first argument if the calling convention is one that can (partially) model this attribute with a preserved mask (i.e.
 
ArrayRef< MCPhysReggetIntraCallClobberedRegs (const MachineFunction *MF) const override
 
BitVector getReservedRegs (const MachineFunction &MF) const override
 
bool isAsmClobberable (const MachineFunction &MF, MCRegister PhysReg) const override
 
bool isInlineAsmReadOnlyReg (const MachineFunction &MF, unsigned PhysReg) const override
 
const TargetRegisterClassgetPointerRegClass (const MachineFunction &MF, unsigned Kind=0) const override
 
const TargetRegisterClassgetCrossCopyRegClass (const TargetRegisterClass *RC) const override
 
const TargetRegisterClassgetLargestLegalSuperClass (const TargetRegisterClass *RC, const MachineFunction &MF) const override
 
unsigned getRegPressureLimit (const TargetRegisterClass *RC, MachineFunction &MF) const override
 
bool getRegAllocationHints (Register VirtReg, ArrayRef< MCPhysReg > Order, SmallVectorImpl< MCPhysReg > &Hints, const MachineFunction &MF, const VirtRegMap *VRM, const LiveRegMatrix *Matrix) const override
 
void updateRegAllocHint (Register Reg, Register NewReg, MachineFunction &MF) const override
 
bool hasBasePointer (const MachineFunction &MF) const
 
bool canRealignStack (const MachineFunction &MF) const override
 
int64_t getFrameIndexInstrOffset (const MachineInstr *MI, int Idx) const override
 
bool needsFrameBaseReg (MachineInstr *MI, int64_t Offset) const override
 needsFrameBaseReg - Returns true if the instruction's frame index reference would be better served by a base register other than FP or SP.
 
Register materializeFrameBaseRegister (MachineBasicBlock *MBB, int FrameIdx, int64_t Offset) const override
 materializeFrameBaseRegister - Insert defining instruction(s) for BaseReg to be a pointer to FrameIdx at the beginning of the basic block.
 
void resolveFrameIndex (MachineInstr &MI, Register BaseReg, int64_t Offset) const override
 
bool isFrameOffsetLegal (const MachineInstr *MI, Register BaseReg, int64_t Offset) const override
 
bool cannotEliminateFrame (const MachineFunction &MF) const
 
Register getFrameRegister (const MachineFunction &MF) const override
 
Register getBaseRegister () const
 
virtual void emitLoadConstPool (MachineBasicBlock &MBB, MachineBasicBlock::iterator &MBBI, const DebugLoc &dl, Register DestReg, unsigned SubIdx, int Val, ARMCC::CondCodes Pred=ARMCC::AL, Register PredReg=Register(), unsigned MIFlags=MachineInstr::NoFlags) const
 emitLoadConstPool - Emits a load from constpool to materialize the specified immediate.
 
bool requiresRegisterScavenging (const MachineFunction &MF) const override
 Code Generation virtual methods...
 
bool requiresFrameIndexScavenging (const MachineFunction &MF) const override
 
bool requiresVirtualBaseRegisters (const MachineFunction &MF) const override
 
bool eliminateFrameIndex (MachineBasicBlock::iterator II, int SPAdj, unsigned FIOperandNum, RegScavenger *RS=nullptr) const override
 
bool shouldCoalesce (MachineInstr *MI, const TargetRegisterClass *SrcRC, unsigned SubReg, const TargetRegisterClass *DstRC, unsigned DstSubReg, const TargetRegisterClass *NewRC, LiveIntervals &LIS) const override
 SrcRC and DstRC will be morphed into NewRC if this returns true.
 
bool shouldRewriteCopySrc (const TargetRegisterClass *DefRC, unsigned DefSubReg, const TargetRegisterClass *SrcRC, unsigned SrcSubReg) const override
 
int getSEHRegNum (unsigned i) const
 
const TargetRegisterClassgetLargestSuperClass (const TargetRegisterClass *RC) const override
 
bool doesRegClassHavePseudoInitUndef (const TargetRegisterClass *RC) const override
 

Additional Inherited Members

- Protected Member Functions inherited from llvm::ARMBaseRegisterInfo
 ARMBaseRegisterInfo ()
 
- Protected Attributes inherited from llvm::ARMBaseRegisterInfo
unsigned BasePtr = ARM::R6
 BasePtr - ARM physical register used as a base ptr in complex stack frames.
 

Detailed Description

Definition at line 25 of file ThumbRegisterInfo.h.

Constructor & Destructor Documentation

◆ ThumbRegisterInfo()

ThumbRegisterInfo::ThumbRegisterInfo ( )
default

Member Function Documentation

◆ eliminateFrameIndex()

bool ThumbRegisterInfo::eliminateFrameIndex ( MachineBasicBlock::iterator  II,
int  SPAdj,
unsigned  FIOperandNum,
RegScavenger RS = nullptr 
) const
override

◆ emitLoadConstPool()

void ThumbRegisterInfo::emitLoadConstPool ( MachineBasicBlock MBB,
MachineBasicBlock::iterator MBBI,
const DebugLoc dl,
Register  DestReg,
unsigned  SubIdx,
int  Val,
ARMCC::CondCodes  Pred = ARMCC::AL,
Register  PredReg = Register(),
unsigned  MIFlags = MachineInstr::NoFlags 
) const
overridevirtual

◆ getLargestLegalSuperClass()

const TargetRegisterClass * ThumbRegisterInfo::getLargestLegalSuperClass ( const TargetRegisterClass RC,
const MachineFunction MF 
) const
override

◆ getPointerRegClass()

const TargetRegisterClass * ThumbRegisterInfo::getPointerRegClass ( const MachineFunction MF,
unsigned  Kind = 0 
) const
override

◆ resolveFrameIndex()

void ThumbRegisterInfo::resolveFrameIndex ( MachineInstr MI,
Register  BaseReg,
int64_t  Offset 
) const
override

◆ rewriteFrameIndex()

bool ThumbRegisterInfo::rewriteFrameIndex ( MachineBasicBlock::iterator  II,
unsigned  FrameRegIdx,
Register  FrameReg,
int &  Offset,
const ARMBaseInstrInfo TII 
) const

◆ useFPForScavengingIndex()

bool ThumbRegisterInfo::useFPForScavengingIndex ( const MachineFunction MF) const
override

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