llvm::SPURegisterInfo Class Reference

#include <SPURegisterInfo.h>

Inheritance diagram for llvm::SPURegisterInfo:

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Collaboration diagram for llvm::SPURegisterInfo:

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List of all members.

Public Member Functions
	SPURegisterInfo (const SPUSubtarget &subtarget, const TargetInstrInfo &tii)
virtual const unsigned *	getCalleeSavedRegs (const MachineFunction *MF) const
	Return the array of callee-saved registers.
virtual const TargetRegisterClass *const *	getCalleeSavedRegClasses (const MachineFunction *MF) const
	Return the register class array of the callee-saved registers.
BitVector	getReservedRegs (const MachineFunction &MF) const
	Return the reserved registers.
bool	hasFP (const MachineFunction &MF) const
	Prediate: Target has dedicated frame pointer.
void	eliminateCallFramePseudoInstr (MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator I) const
	Eliminate the call frame setup pseudo-instructions.
void	eliminateFrameIndex (MachineBasicBlock::iterator II, int, RegScavenger *RS) const
	Convert frame indicies into machine operands.
void	determineFrameLayout (MachineFunction &MF) const
	Determine the frame's layour.
void	processFunctionBeforeCalleeSavedScan (MachineFunction &MF, RegScavenger *RS=NULL) const
void	emitPrologue (MachineFunction &MF) const
	Emit the function prologue.
void	emitEpilogue (MachineFunction &MF, MachineBasicBlock &MBB) const
	Emit the function epilogue.
unsigned	getRARegister () const
	Get return address register (LR, aka R0).
unsigned	getFrameRegister (MachineFunction &MF) const
	Get the stack frame register (SP, aka R1).
void	getInitialFrameState (std::vector< MachineMove > &Moves) const
	Perform target-specific stack frame setup.
int	getDwarfRegNum (unsigned RegNum, bool isEH) const
	Get DWARF debugging register number.
Static Public Member Functions
static unsigned	getRegisterNumbering (unsigned RegEnum)
	Translate a register's enum value to a register number.
static const unsigned *	getArgRegs ()
	Return the array of argument passing registers.
static unsigned	getNumArgRegs ()
	Return the size of the argument passing register array.

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Detailed Description

Definition at line 26 of file SPURegisterInfo.h.

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Constructor & Destructor Documentation

SPURegisterInfo::SPURegisterInfo	(	const SPUSubtarget &	subtarget,
		const TargetInstrInfo &	tii
	)

Definition at line 184 of file SPURegisterInfo.cpp.

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Member Function Documentation

unsigned SPURegisterInfo::getRegisterNumbering

(

unsigned

RegEnum

)

[static]

Translate a register's enum value to a register number.

This method translates a register's enum value to it's regiser number, e.g. SPU::R14 -> 14.

getRegisterNumbering - Given the enum value for some register, e.g. PPC::F14, return the number that it corresponds to (e.g. 14).

Definition at line 47 of file SPURegisterInfo.cpp.

References llvm::cerr().

const unsigned * SPURegisterInfo::getCalleeSavedRegs

(

const MachineFunction *

MF

)

const [virtual]

Return the array of callee-saved registers.

Definition at line 220 of file SPURegisterInfo.cpp.

const TargetRegisterClass *const * SPURegisterInfo::getCalleeSavedRegClasses

(

const MachineFunction *

MF

)

const [virtual]

Return the register class array of the callee-saved registers.

Definition at line 246 of file SPURegisterInfo.cpp.

BitVector SPURegisterInfo::getReservedRegs

(

const MachineFunction &

MF

)

const

Return the reserved registers.

R0 (link register), R1 (stack pointer) and R2 (environment pointer -- this is generally unused) are the Cell's reserved registers

Definition at line 279 of file SPURegisterInfo.cpp.

References llvm::BitVector::set().

bool SPURegisterInfo::hasFP

(

const MachineFunction &

MF

)

const

Prediate: Target has dedicated frame pointer.

Definition at line 305 of file SPURegisterInfo.cpp.

References llvm::MachineFunction::getFrameInfo(), llvm::MachineFrameInfo::getStackSize(), MFI, and needsFP().

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

Eliminate the call frame setup pseudo-instructions.

Definition at line 312 of file SPURegisterInfo.cpp.

References llvm::MachineBasicBlock::erase().

void SPURegisterInfo::eliminateFrameIndex	(	MachineBasicBlock::iterator	II,
		int	SPAdj,
		RegScavenger *	RS
	)			const

Convert frame indicies into machine operands.

Definition at line 322 of file SPURegisterInfo.cpp.

References llvm::cerr(), llvm::MachineOperand::ChangeToImmediate(), llvm::MachineOperand::ChangeToRegister(), FrameIndex, llvm::MachineFunction::getFrameInfo(), llvm::MachineOperand::getImm(), llvm::MachineOperand::getIndex(), llvm::MachineInstr::getNumOperands(), llvm::MachineFrameInfo::getObjectOffset(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineBasicBlock::getParent(), llvm::MachineInstr::getParent(), llvm::MachineFrameInfo::getStackSize(), llvm::MachineOperand::isFI(), llvm::SPUFrameInfo::maxFrameOffset(), MBB, MF, MFI, MI, llvm::SPUFrameInfo::minFrameOffset(), llvm::SPUFrameInfo::minStackSize(), and Offset.

void SPURegisterInfo::determineFrameLayout

(

MachineFunction &

MF

)

const

Determine the frame's layour.

determineFrameLayout - Determine the size of the frame and maximum call frame size.

Definition at line 371 of file SPURegisterInfo.cpp.

References Align, llvm::TargetMachine::getFrameInfo(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFrameInfo::getMaxAlignment(), llvm::MachineFrameInfo::getMaxCallFrameSize(), llvm::TargetFrameInfo::getStackAlignment(), llvm::MachineFrameInfo::getStackSize(), llvm::MachineFunction::getTarget(), llvm::MachineFrameInfo::hasVarSizedObjects(), llvm::isPowerOf2_32(), MFI, llvm::MachineFrameInfo::setMaxCallFrameSize(), and llvm::MachineFrameInfo::setStackSize().

Referenced by emitPrologue().

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

Definition at line 406 of file SPURegisterInfo.cpp.

References llvm::MachineFunction::getRegInfo(), and llvm::MachineRegisterInfo::setPhysRegUnused().

void SPURegisterInfo::emitPrologue

(

MachineFunction &

MF

)

const

Emit the function prologue.

Definition at line 418 of file SPURegisterInfo.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::MachineBasicBlock::begin(), llvm::SPUFrameInfo::branchHintPenalty(), llvm::BuildMI(), llvm::cerr(), llvm::ISD::DBG_LABEL, determineFrameLayout(), E, llvm::MachineBasicBlock::end(), llvm::MachineFunction::front(), llvm::TargetInstrInfo::get(), llvm::MachineFrameInfo::getCalleeSavedInfo(), llvm::MachineFunction::getFrameInfo(), llvm::MachineModuleInfo::getFrameMoves(), llvm::MachineFrameInfo::getMachineModuleInfo(), llvm::MachineFrameInfo::getObjectOffset(), llvm::MachineFrameInfo::getStackSize(), llvm::MachineFrameInfo::hasCalls(), llvm::MachineModuleInfo::hasDebugInfo(), llvm::isS10Constant(), MBB, MBBI, MFI, llvm::SPUFrameInfo::minStackSize(), MMI, llvm::MachineModuleInfo::NextLabelID(), Offset, llvm::prior(), Reg, llvm::MachineBasicBlock::size(), and llvm::MachineLocation::VirtualFP.

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

Emit the function epilogue.

Definition at line 524 of file SPURegisterInfo.cpp.

References llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::BuildMI(), llvm::cerr(), llvm::MachineBasicBlock::end(), llvm::TargetInstrInfo::get(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFrameInfo::getStackSize(), llvm::isS10Constant(), MBBI, MFI, llvm::SPUFrameInfo::minStackSize(), llvm::prior(), llvm::ISD::RET, and llvm::SPUFrameInfo::stackSlotSize().

unsigned SPURegisterInfo::getRARegister

(

)

const

Get return address register (LR, aka R0).

Definition at line 575 of file SPURegisterInfo.cpp.

unsigned SPURegisterInfo::getFrameRegister

(

MachineFunction &

MF

)

const

Get the stack frame register (SP, aka R1).

Definition at line 581 of file SPURegisterInfo.cpp.

void SPURegisterInfo::getInitialFrameState

(

std::vector< MachineMove > &

Moves

)

const

Perform target-specific stack frame setup.

Definition at line 587 of file SPURegisterInfo.cpp.

References Src, and llvm::MachineLocation::VirtualFP.

const unsigned * SPURegisterInfo::getArgRegs

(

)

[static]

Return the array of argument passing registers.

Note:

The size of this array is returned by getArgRegsSize().

Definition at line 208 of file SPURegisterInfo.cpp.

Referenced by LowerCALL(), and LowerFORMAL_ARGUMENTS().

unsigned SPURegisterInfo::getNumArgRegs

(

)

[static]

Return the size of the argument passing register array.

Definition at line 214 of file SPURegisterInfo.cpp.

Referenced by llvm::SPUFrameInfo::fullSpillSize(), LowerCALL(), and LowerFORMAL_ARGUMENTS().

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

Get DWARF debugging register number.

Definition at line 597 of file SPURegisterInfo.cpp.

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

• SPURegisterInfo.h
• SPURegisterInfo.cpp