llvm::ARMRegisterInfo Struct Reference

#include <ARMRegisterInfo.h>

Inheritance diagram for llvm::ARMRegisterInfo:

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Collaboration diagram for llvm::ARMRegisterInfo:

[legend]

List of all members.

Public Member Functions
	ARMRegisterInfo (const TargetInstrInfo &tii, const ARMSubtarget &STI)
void	emitLoadConstPool (MachineBasicBlock &MBB, MachineBasicBlock::iterator &MBBI, unsigned DestReg, int Val, unsigned Pred, unsigned PredReg, const TargetInstrInfo *TII, bool isThumb) const
const unsigned *	getCalleeSavedRegs (const MachineFunction *MF=0) const
	Code Generation virtual methods...
const TargetRegisterClass *const *	getCalleeSavedRegClasses (const MachineFunction *MF=0) const
BitVector	getReservedRegs (const MachineFunction &MF) const
bool	isReservedReg (const MachineFunction &MF, unsigned Reg) const
bool	requiresRegisterScavenging (const MachineFunction &MF) const
bool	hasFP (const MachineFunction &MF) const
bool	hasReservedCallFrame (MachineFunction &MF) const
void	eliminateCallFramePseudoInstr (MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator I) const
void	eliminateFrameIndex (MachineBasicBlock::iterator II, int SPAdj, RegScavenger *RS=NULL) const
void	processFunctionBeforeCalleeSavedScan (MachineFunction &MF, RegScavenger *RS=NULL) const
void	emitPrologue (MachineFunction &MF) const
void	emitEpilogue (MachineFunction &MF, MachineBasicBlock &MBB) const
unsigned	getRARegister () const
unsigned	getFrameRegister (MachineFunction &MF) const
unsigned	getEHExceptionRegister () const
unsigned	getEHHandlerRegister () const
int	getDwarfRegNum (unsigned RegNum, bool isEH) const
bool	isLowRegister (unsigned Reg) const
Static Public Member Functions
static unsigned	getRegisterNumbering (unsigned RegEnum)
static unsigned	getRegisterNumbering (unsigned RegEnum, bool &isSPVFP)
Public Attributes
const TargetInstrInfo &	TII
const ARMSubtarget &	STI

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Detailed Description

Definition at line 25 of file ARMRegisterInfo.h.

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Constructor & Destructor Documentation

ARMRegisterInfo::ARMRegisterInfo	(	const TargetInstrInfo &	tii,
		const ARMSubtarget &	STI
	)

Definition at line 158 of file ARMRegisterInfo.cpp.

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Member Function Documentation

void ARMRegisterInfo::emitLoadConstPool	(	MachineBasicBlock &	MBB,
		MachineBasicBlock::iterator &	MBBI,
		unsigned	DestReg,
		int	Val,
		unsigned	Pred,
		unsigned	PredReg,
		const TargetInstrInfo *	TII,
		bool	isThumb
	)			const

emitLoadConstPool - Emits a load from constpool to materialize the specified immediate.

emitLoadConstPool - Emits a load from constpool to materialize the specified immediate.

Definition at line 177 of file ARMRegisterInfo.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::BuildMI(), llvm::CallingConv::C, ConstantPool, llvm::TargetInstrInfo::get(), llvm::ConstantInt::get(), llvm::MachineFunction::getConstantPool(), llvm::MachineConstantPool::getConstantPoolIndex(), llvm::MachineBasicBlock::getParent(), Idx, llvm::Type::Int32Ty, and MF.

Referenced by eliminateFrameIndex(), emitThumbRegPlusImmInReg(), and llvm::ARMInstrInfo::reMaterialize().

unsigned ARMRegisterInfo::getRegisterNumbering

(

unsigned

RegEnum

)

[static]

getRegisterNumbering - Given the enum value for some register, e.g. ARM::LR, return the number that it corresponds to (e.g. 14).

Definition at line 43 of file ARMRegisterInfo.cpp.

References llvm::X86II::D8, and llvm::X86II::D9.

Referenced by llvm::ARMJITInfo::relocate().

unsigned ARMRegisterInfo::getRegisterNumbering	(	unsigned	RegEnum,
		bool &	isSPVFP
	)			[static]

Same as previous getRegisterNumbering except it returns true in isSPVFP if the register is a single precision VFP register.

Definition at line 84 of file ARMRegisterInfo.cpp.

References llvm::X86II::D8, and llvm::X86II::D9.

const unsigned * ARMRegisterInfo::getCalleeSavedRegs

(

const MachineFunction *

MF = 0

)

const

Code Generation virtual methods...

Definition at line 208 of file ARMRegisterInfo.cpp.

References llvm::X86II::D8, llvm::X86II::D9, llvm::ARMSubtarget::isTargetDarwin(), and STI.

Referenced by emitEpilogue(), and processFunctionBeforeCalleeSavedScan().

const TargetRegisterClass *const * ARMRegisterInfo::getCalleeSavedRegClasses

(

const MachineFunction *

MF = 0

)

const

Definition at line 230 of file ARMRegisterInfo.cpp.

Referenced by processFunctionBeforeCalleeSavedScan().

BitVector ARMRegisterInfo::getReservedRegs

(

const MachineFunction &

MF

)

const

Definition at line 243 of file ARMRegisterInfo.cpp.

References hasFP(), llvm::ARMSubtarget::isR9Reserved(), llvm::ARMSubtarget::isTargetDarwin(), llvm::BitVector::set(), and STI.

bool ARMRegisterInfo::isReservedReg	(	const MachineFunction &	MF,
		unsigned	Reg
	)			const

Definition at line 257 of file ARMRegisterInfo.cpp.

References hasFP(), llvm::ARMSubtarget::isR9Reserved(), llvm::ARMSubtarget::isTargetDarwin(), and STI.

Referenced by processFunctionBeforeCalleeSavedScan().

bool ARMRegisterInfo::requiresRegisterScavenging

(

const MachineFunction &

MF

)

const

Definition at line 276 of file ARMRegisterInfo.cpp.

References AFI, llvm::MachineFunction::getInfo(), llvm::ARMFunctionInfo::isThumbFunction(), and ThumbRegScavenging.

bool ARMRegisterInfo::hasFP

(

const MachineFunction &

MF

)

const

hasFP - Return true if the specified function should have a dedicated frame pointer register. This is true if the function has variable sized allocas or if frame pointer elimination is disabled.

Definition at line 285 of file ARMRegisterInfo.cpp.

References llvm::MachineFunction::getFrameInfo(), llvm::MachineFrameInfo::hasVarSizedObjects(), MFI, and llvm::NoFramePointerElim.

Referenced by eliminateFrameIndex(), emitEpilogue(), emitPrologue(), getFrameRegister(), getReservedRegs(), isReservedReg(), and processFunctionBeforeCalleeSavedScan().

bool ARMRegisterInfo::hasReservedCallFrame

(

MachineFunction &

MF

)

const

Definition at line 295 of file ARMRegisterInfo.cpp.

References AFI, llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getInfo(), llvm::MachineFrameInfo::getMaxCallFrameSize(), llvm::MachineFrameInfo::hasVarSizedObjects(), and llvm::ARMFunctionInfo::isThumbFunction().

Referenced by eliminateCallFramePseudoInstr().

void ARMRegisterInfo::eliminateCallFramePseudoInstr	(	MachineFunction &	MF,
		MachineBasicBlock &	MBB,
		MachineBasicBlock::iterator	I
	)			const

Definition at line 537 of file ARMRegisterInfo.cpp.

References AFI, llvm::ARMCC::AL, Align, emitSPUpdate(), llvm::MachineBasicBlock::erase(), llvm::TargetMachine::getFrameInfo(), llvm::MachineOperand::getImm(), llvm::MachineFunction::getInfo(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), llvm::TargetFrameInfo::getStackAlignment(), llvm::MachineFunction::getTarget(), hasReservedCallFrame(), isThumb, llvm::ARMFunctionInfo::isThumbFunction(), Pred, and TII.

void ARMRegisterInfo::eliminateFrameIndex	(	MachineBasicBlock::iterator	II,
		int	SPAdj,
		RegScavenger *	RS = NULL
	)			const

Definition at line 608 of file ARMRegisterInfo.cpp.

References llvm::MachineInstr::addOperand(), AddrMode, llvm::ARMII::AddrMode2, llvm::ARMII::AddrMode3, llvm::ARMII::AddrMode5, llvm::ARMII::AddrModeMask, llvm::ARMII::AddrModeTs, AFI, llvm::ARMCC::AL, llvm::BuildMI(), calcNumMI(), llvm::MachineOperand::ChangeToImmediate(), llvm::MachineOperand::ChangeToRegister(), llvm::MachineOperand::CreateReg(), emitARMRegPlusImmediate(), emitLoadConstPool(), emitThumbConstant(), emitThumbRegPlusImmediate(), emitThumbRegPlusImmInReg(), llvm::MachineBasicBlock::erase(), llvm::MachineInstr::findFirstPredOperandIdx(), findScratchRegister(), FrameIndex, llvm::TargetInstrInfo::get(), llvm::ARM_AM::getAM2Offset(), llvm::ARM_AM::getAM2Op(), llvm::ARM_AM::getAM3Offset(), llvm::ARM_AM::getAM3Op(), llvm::ARM_AM::getAM5Offset(), llvm::ARM_AM::getAM5Op(), llvm::MachineInstr::getDesc(), llvm::ARMFunctionInfo::getDPRCalleeSavedAreaOffset(), llvm::MachineFunction::getFrameInfo(), llvm::ARMFunctionInfo::getFramePtrSpillOffset(), getFrameRegister(), llvm::ARMFunctionInfo::getGPRCalleeSavedArea1Offset(), llvm::ARMFunctionInfo::getGPRCalleeSavedArea2Offset(), llvm::MachineOperand::getImm(), llvm::MachineOperand::getIndex(), llvm::MachineFunction::getInfo(), llvm::MachineInstr::getNumOperands(), llvm::MachineFrameInfo::getObjectOffset(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineBasicBlock::getParent(), llvm::MachineInstr::getParent(), llvm::MachineOperand::getReg(), llvm::ARM_AM::getSOImmVal(), llvm::ARM_AM::getSOImmValRotate(), llvm::MachineFrameInfo::getStackSize(), hasFP(), llvm::ARMFunctionInfo::isDPRCalleeSavedAreaFrame(), llvm::MachineOperand::isFI(), llvm::ARMFunctionInfo::isGPRCalleeSavedArea1Frame(), llvm::ARMFunctionInfo::isGPRCalleeSavedArea2Frame(), llvm::ARMFunctionInfo::isR3LiveIn(), isThumb, llvm::ARMFunctionInfo::isThumbFunction(), llvm::TargetInstrDesc::mayLoad(), llvm::TargetInstrDesc::mayStore(), MBB, MF, MI, llvm::next(), Offset, Pred, llvm::MachineInstr::RemoveOperand(), llvm::ARM_AM::rotr32(), Scale, llvm::RegScavenger::scavengeRegister(), llvm::MachineInstr::setDesc(), llvm::ARM_AM::sub, TII, and llvm::TargetInstrDesc::TSFlags.

void ARMRegisterInfo::processFunctionBeforeCalleeSavedScan	(	MachineFunction &	MF,
		RegScavenger *	RS = NULL
	)			const

Definition at line 942 of file ARMRegisterInfo.cpp.

References AddrMode, llvm::ARMII::AddrMode3, llvm::ARMII::AddrMode5, llvm::ARMII::AddrModeMask, AFI, llvm::SmallVectorImpl< T >::back(), BB, llvm::MachineBasicBlock::begin(), llvm::MachineFunction::begin(), llvm::SmallVectorImpl< T >::begin(), llvm::MachineFrameInfo::CreateStackObject(), E, llvm::SmallVectorImpl< T >::empty(), llvm::MachineBasicBlock::end(), llvm::MachineFunction::end(), llvm::SmallVectorImpl< T >::end(), llvm::SmallVectorImpl< T >::erase(), estimateStackSize(), llvm::SmallVectorImpl< T >::front(), llvm::TargetInstrInfo::get(), llvm::TargetRegisterClass::getAlignment(), getCalleeSavedRegClasses(), getCalleeSavedRegs(), llvm::MachineFunction::getFrameInfo(), llvm::TargetMachine::getFrameInfo(), llvm::TargetInstrInfo::GetFunctionSizeInBytes(), llvm::MachineFunction::getInfo(), llvm::MachineFunction::getRegInfo(), llvm::TargetRegisterClass::getSize(), llvm::TargetFrameInfo::getStackAlignment(), llvm::MachineFunction::getTarget(), hasFP(), isLowRegister(), llvm::MachineRegisterInfo::isPhysRegUsed(), isReservedReg(), llvm::ARMSubtarget::isTargetDarwin(), llvm::ARMFunctionInfo::isThumbFunction(), MFI, llvm::SmallVectorImpl< T >::pop_back(), llvm::SmallVectorImpl< T >::push_back(), Reg, llvm::ARMFunctionInfo::setCSRegisterIsSpilled(), llvm::ARMFunctionInfo::setHasStackFrame(), llvm::ARMFunctionInfo::setLRIsSpilledForFarJump(), llvm::MachineRegisterInfo::setPhysRegUsed(), llvm::RegScavenger::setScavengingFrameIndex(), llvm::SmallVectorImpl< T >::size(), STI, TII, and llvm::TargetInstrDesc::TSFlags.

void ARMRegisterInfo::emitPrologue

(

MachineFunction &

MF

)

const

Definition at line 1191 of file ARMRegisterInfo.cpp.

References AddDefaultCC(), AddDefaultPred(), llvm::ARMFunctionInfo::addDPRCalleeSavedAreaFrame(), llvm::ARMFunctionInfo::addGPRCalleeSavedArea1Frame(), llvm::ARMFunctionInfo::addGPRCalleeSavedArea2Frame(), llvm::MachineInstrBuilder::addImm(), AFI, llvm::ARMCC::AL, llvm::MachineBasicBlock::begin(), llvm::BuildMI(), E, emitSPUpdate(), llvm::MachineBasicBlock::end(), FI, llvm::MachineFunction::front(), llvm::TargetInstrInfo::get(), llvm::MachineFrameInfo::getCalleeSavedInfo(), llvm::MachineFunction::getFrameInfo(), llvm::ARMFunctionInfo::getFramePtrSpillOffset(), llvm::MachineFunction::getInfo(), llvm::MachineFrameInfo::getObjectOffset(), llvm::MachineFrameInfo::getOffsetAdjustment(), llvm::MachineFunction::getRegInfo(), llvm::MachineFrameInfo::getStackSize(), llvm::ARMFunctionInfo::getVarArgsRegSaveSize(), hasFP(), llvm::ARMFunctionInfo::hasStackFrame(), llvm::ARMSubtarget::isTargetDarwin(), llvm::ARMSubtarget::isTargetELF(), isThumb, llvm::ARMFunctionInfo::isThumbFunction(), llvm::MachineRegisterInfo::livein_begin(), llvm::MachineRegisterInfo::livein_end(), MBB, MBBI, MFI, movePastCSLoadStoreOps(), Reg, llvm::ARMFunctionInfo::setDPRCalleeSavedAreaOffset(), llvm::ARMFunctionInfo::setDPRCalleeSavedAreaSize(), llvm::ARMFunctionInfo::setFramePtrSpillOffset(), llvm::ARMFunctionInfo::setGPRCalleeSavedArea1Offset(), llvm::ARMFunctionInfo::setGPRCalleeSavedArea1Size(), llvm::ARMFunctionInfo::setGPRCalleeSavedArea2Offset(), llvm::ARMFunctionInfo::setGPRCalleeSavedArea2Size(), llvm::MachineFrameInfo::setOffsetAdjustment(), llvm::ARMFunctionInfo::setR3IsLiveIn(), llvm::MachineFrameInfo::setStackSize(), STI, and TII.

void ARMRegisterInfo::emitEpilogue	(	MachineFunction &	MF,
		MachineBasicBlock &	MBB
	)			const

Definition at line 1331 of file ARMRegisterInfo.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), AFI, llvm::ARMCC::AL, llvm::MachineBasicBlock::begin(), llvm::BuildMI(), emitSPUpdate(), emitThumbRegPlusImmediate(), llvm::MachineBasicBlock::end(), llvm::MachineBasicBlock::erase(), llvm::MachineBasicBlock::front(), llvm::TargetInstrInfo::get(), getCalleeSavedRegs(), llvm::ARMFunctionInfo::getDPRCalleeSavedAreaOffset(), llvm::ARMFunctionInfo::getDPRCalleeSavedAreaSize(), llvm::MachineFunction::getFrameInfo(), llvm::ARMFunctionInfo::getFramePtrSpillOffset(), llvm::ARMFunctionInfo::getGPRCalleeSavedArea1Size(), llvm::ARMFunctionInfo::getGPRCalleeSavedArea2Size(), llvm::MachineFunction::getInfo(), llvm::MachineFrameInfo::getStackSize(), llvm::ARMFunctionInfo::getVarArgsRegSaveSize(), hasFP(), llvm::ARMFunctionInfo::hasStackFrame(), isCSRestore(), llvm::ARMSubtarget::isTargetDarwin(), isThumb, llvm::ARMFunctionInfo::isThumbFunction(), MBBI, MFI, movePastCSLoadStoreOps(), llvm::prior(), STI, and TII.

unsigned ARMRegisterInfo::getRARegister

(

)

const

Definition at line 1436 of file ARMRegisterInfo.cpp.

unsigned ARMRegisterInfo::getFrameRegister

(

MachineFunction &

MF

)

const

Definition at line 1440 of file ARMRegisterInfo.cpp.

References hasFP(), llvm::ARMSubtarget::isTargetDarwin(), llvm::ARMSubtarget::isThumb(), STI, and llvm::ARMSubtarget::useThumbBacktraces().

Referenced by eliminateFrameIndex().

unsigned ARMRegisterInfo::getEHExceptionRegister

(

)

const

Definition at line 1447 of file ARMRegisterInfo.cpp.

unsigned ARMRegisterInfo::getEHHandlerRegister

(

)

const

Definition at line 1452 of file ARMRegisterInfo.cpp.

int ARMRegisterInfo::getDwarfRegNum	(	unsigned	RegNum,
		bool	isEH
	)			const

Definition at line 1457 of file ARMRegisterInfo.cpp.

bool ARMRegisterInfo::isLowRegister

(

unsigned

Reg

)

const

isLowRegister - Returns true if the register is low register r0-r7.

Definition at line 196 of file ARMRegisterInfo.cpp.

Referenced by llvm::ARMInstrInfo::canFoldMemoryOperand(), emitThumbRegPlusImmediate(), emitThumbRegPlusImmInReg(), llvm::ARMInstrInfo::foldMemoryOperandImpl(), and processFunctionBeforeCalleeSavedScan().

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Member Data Documentation

const TargetInstrInfo& llvm::ARMRegisterInfo::TII

Definition at line 26 of file ARMRegisterInfo.h.

Referenced by eliminateCallFramePseudoInstr(), eliminateFrameIndex(), emitEpilogue(), emitPrologue(), and processFunctionBeforeCalleeSavedScan().

const ARMSubtarget& llvm::ARMRegisterInfo::STI

Definition at line 27 of file ARMRegisterInfo.h.

Referenced by emitEpilogue(), emitPrologue(), getCalleeSavedRegs(), getFrameRegister(), getReservedRegs(), isReservedReg(), and processFunctionBeforeCalleeSavedScan().

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

• ARMRegisterInfo.h
• ARMRegisterInfo.cpp