LLVM  3.7.0
Public Member Functions | List of all members
llvm::AArch64RegisterInfo Struct Reference

#include <AArch64RegisterInfo.h>

Inheritance diagram for llvm::AArch64RegisterInfo:
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Collaboration diagram for llvm::AArch64RegisterInfo:
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Public Member Functions

 AArch64RegisterInfo (const Triple &TT)
 
bool isReservedReg (const MachineFunction &MF, unsigned Reg) const
 
const MCPhysReggetCalleeSavedRegs (const MachineFunction *MF) const override
 Code Generation virtual methods... More...
 
const uint32_t * getCallPreservedMask (const MachineFunction &MF, CallingConv::ID) const override
 
unsigned getCSRFirstUseCost () const override
 
const uint32_t * getTLSCallPreservedMask () const
 
const uint32_t * getThisReturnPreservedMask (const MachineFunction &MF, CallingConv::ID) const
 getThisReturnPreservedMask - Returns a call preserved mask specific to the case that 'returned' is on an i64 first argument if the calling convention is one that can (partially) model this attribute with a preserved mask (i.e. More...
 
BitVector getReservedRegs (const MachineFunction &MF) const override
 
const TargetRegisterClassgetPointerRegClass (const MachineFunction &MF, unsigned Kind=0) const override
 
const TargetRegisterClassgetCrossCopyRegClass (const TargetRegisterClass *RC) const override
 
bool requiresRegisterScavenging (const MachineFunction &MF) const override
 
bool useFPForScavengingIndex (const MachineFunction &MF) const override
 
bool requiresFrameIndexScavenging (const MachineFunction &MF) 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. More...
 
bool isFrameOffsetLegal (const MachineInstr *MI, unsigned BaseReg, int64_t Offset) const override
 
void materializeFrameBaseRegister (MachineBasicBlock *MBB, unsigned BaseReg, int FrameIdx, int64_t Offset) const override
 Insert defining instruction(s) for BaseReg to be a pointer to FrameIdx at the beginning of the basic block. More...
 
void resolveFrameIndex (MachineInstr &MI, unsigned BaseReg, int64_t Offset) const override
 
void eliminateFrameIndex (MachineBasicBlock::iterator II, int SPAdj, unsigned FIOperandNum, RegScavenger *RS=nullptr) const override
 
bool cannotEliminateFrame (const MachineFunction &MF) const
 
bool requiresVirtualBaseRegisters (const MachineFunction &MF) const override
 
bool hasBasePointer (const MachineFunction &MF) const
 
unsigned getBaseRegister () const
 
unsigned getFrameRegister (const MachineFunction &MF) const override
 
unsigned getRegPressureLimit (const TargetRegisterClass *RC, MachineFunction &MF) const override
 
bool canRealignStack (const MachineFunction &MF) const
 
bool needsStackRealignment (const MachineFunction &MF) const override
 

Detailed Description

Definition at line 27 of file AArch64RegisterInfo.h.

Constructor & Destructor Documentation

AArch64RegisterInfo::AArch64RegisterInfo ( const Triple TT)

Definition at line 41 of file AArch64RegisterInfo.cpp.

Member Function Documentation

bool AArch64RegisterInfo::cannotEliminateFrame ( const MachineFunction MF) const
bool AArch64RegisterInfo::canRealignStack ( const MachineFunction MF) const
void AArch64RegisterInfo::eliminateFrameIndex ( MachineBasicBlock::iterator  II,
int  SPAdj,
unsigned  FIOperandNum,
RegScavenger RS = nullptr 
) const
override
unsigned AArch64RegisterInfo::getBaseRegister ( ) const
const MCPhysReg * AArch64RegisterInfo::getCalleeSavedRegs ( const MachineFunction MF) const
override
const uint32_t * AArch64RegisterInfo::getCallPreservedMask ( const MachineFunction MF,
CallingConv::ID  CC 
) const
override

Definition at line 58 of file AArch64RegisterInfo.cpp.

References llvm::CallingConv::AnyReg, and llvm::CallingConv::GHC.

const TargetRegisterClass * AArch64RegisterInfo::getCrossCopyRegClass ( const TargetRegisterClass RC) const
override

Definition at line 153 of file AArch64RegisterInfo.cpp.

unsigned llvm::AArch64RegisterInfo::getCSRFirstUseCost ( ) const
inlineoverride

Definition at line 41 of file AArch64RegisterInfo.h.

unsigned AArch64RegisterInfo::getFrameRegister ( const MachineFunction MF) const
override
const TargetRegisterClass * AArch64RegisterInfo::getPointerRegClass ( const MachineFunction MF,
unsigned  Kind = 0 
) const
override

Definition at line 147 of file AArch64RegisterInfo.cpp.

unsigned llvm::AArch64RegisterInfo::getRegPressureLimit ( const TargetRegisterClass RC,
MachineFunction MF 
) const
override
BitVector AArch64RegisterInfo::getReservedRegs ( const MachineFunction MF) const
override
const uint32_t * AArch64RegisterInfo::getThisReturnPreservedMask ( const MachineFunction MF,
CallingConv::ID  CC 
) const

getThisReturnPreservedMask - Returns a call preserved mask specific to the case that 'returned' is on an i64 first argument if the calling convention is one that can (partially) model this attribute with a preserved mask (i.e.

it is a calling convention that uses the same register for the first i64 argument and an i64 return value)

Should return NULL in the case that the calling convention does not have this property

Definition at line 78 of file AArch64RegisterInfo.cpp.

References llvm::CallingConv::GHC.

const uint32_t * AArch64RegisterInfo::getTLSCallPreservedMask ( ) const
bool AArch64RegisterInfo::hasBasePointer ( const MachineFunction MF) const
bool AArch64RegisterInfo::isFrameOffsetLegal ( const MachineInstr MI,
unsigned  BaseReg,
int64_t  Offset 
) const
override
bool AArch64RegisterInfo::isReservedReg ( const MachineFunction MF,
unsigned  Reg 
) const
void AArch64RegisterInfo::materializeFrameBaseRegister ( MachineBasicBlock MBB,
unsigned  BaseReg,
int  FrameIdx,
int64_t  Offset 
) const
override
bool AArch64RegisterInfo::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.

Used by LocalStackFrameAllocation to determine which frame index references it should create new base registers for.

Definition at line 256 of file AArch64RegisterInfo.cpp.

References llvm::MachineFunction::getFrameInfo(), llvm::MachineFrameInfo::getLocalFrameSize(), llvm::MachineInstr::getOperand(), llvm::MachineInstr::getParent(), llvm::MachineBasicBlock::getParent(), llvm::AArch64FrameLowering::hasFP(), llvm::MachineOperand::isFI(), isFrameOffsetLegal(), llvm::MachineInstr::mayLoad(), and llvm::MachineInstr::mayStore().

bool AArch64RegisterInfo::needsStackRealignment ( const MachineFunction MF) const
override
bool AArch64RegisterInfo::requiresFrameIndexScavenging ( const MachineFunction MF) const
override

Definition at line 237 of file AArch64RegisterInfo.cpp.

bool AArch64RegisterInfo::requiresRegisterScavenging ( const MachineFunction MF) const
override

Definition at line 218 of file AArch64RegisterInfo.cpp.

bool AArch64RegisterInfo::requiresVirtualBaseRegisters ( const MachineFunction MF) const
override

Definition at line 223 of file AArch64RegisterInfo.cpp.

void AArch64RegisterInfo::resolveFrameIndex ( MachineInstr MI,
unsigned  BaseReg,
int64_t  Offset 
) const
override
bool AArch64RegisterInfo::useFPForScavengingIndex ( const MachineFunction MF) const
override

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