#include <MipsFrameLowering.h>

Inheritance diagram for llvm::MipsFrameLowering:

Collaboration diagram for llvm::MipsFrameLowering:

Public Member Functions
	MipsFrameLowering (const MipsSubtarget &sti, unsigned Alignment)

bool	hasFP (const MachineFunction &MF) const

Public Member Functions inherited from llvm::TargetFrameLowering
	TargetFrameLowering (StackDirection D, unsigned StackAl, int LAO, unsigned TransAl=1, bool StackReal=true)

virtual	~TargetFrameLowering ()

StackDirection	getStackGrowthDirection () const

unsigned	getStackAlignment () const

unsigned	getTransientStackAlignment () const

bool	isStackRealignable () const

int	getOffsetOfLocalArea () const

virtual bool	isFPCloseToIncomingSP () const

virtual const SpillSlot *	getCalleeSavedSpillSlots (unsigned &NumEntries) const

virtual bool	targetHandlesStackFrameRounding () const

virtual void	emitPrologue (MachineFunction &MF) const =0

virtual void	emitEpilogue (MachineFunction &MF, MachineBasicBlock &MBB) const =0

virtual void	adjustForSegmentedStacks (MachineFunction &MF) const

virtual void	adjustForHiPEPrologue (MachineFunction &MF) const

virtual bool	spillCalleeSavedRegisters (MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, const std::vector< CalleeSavedInfo > &CSI, const TargetRegisterInfo *TRI) const

virtual bool	restoreCalleeSavedRegisters (MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, const std::vector< CalleeSavedInfo > &CSI, const TargetRegisterInfo *TRI) const

virtual bool	hasReservedCallFrame (const MachineFunction &MF) const

virtual bool	canSimplifyCallFramePseudos (const MachineFunction &MF) const

virtual int	getFrameIndexOffset (const MachineFunction &MF, int FI) const

virtual int	getFrameIndexReference (const MachineFunction &MF, int FI, unsigned &FrameReg) const

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

virtual void	processFunctionBeforeFrameFinalized (MachineFunction &MF, RegScavenger *RS=NULL) const

virtual void	eliminateCallFramePseudoInstr (MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator MI) const

Static Public Member Functions
static const MipsFrameLowering *	create (MipsTargetMachine &TM, const MipsSubtarget &ST)

Protected Member Functions
uint64_t	estimateStackSize (const MachineFunction &MF) const

Protected Attributes
const MipsSubtarget &	STI

Additional Inherited Members
Public Types inherited from llvm::TargetFrameLowering
enum	StackDirection { StackGrowsUp, StackGrowsDown }

Detailed Description

Definition at line 24 of file MipsFrameLowering.h.

Constructor & Destructor Documentation

llvm::MipsFrameLowering::MipsFrameLowering	(	const MipsSubtarget &	sti,
		unsigned	Alignment
	)

inlineexplicit

Definition at line 29 of file MipsFrameLowering.h.

Member Function Documentation

const MipsFrameLowering * MipsFrameLowering::create	(	MipsTargetMachine &	TM,
		const MipsSubtarget &	ST
	)

static

Definition at line 85 of file MipsFrameLowering.cpp.

References llvm::createMips16FrameLowering(), llvm::createMipsSEFrameLowering(), llvm::MipsTargetMachine::getSubtargetImpl(), and llvm::MipsSubtarget::inMips16Mode().

Referenced by llvm::MipsTargetMachine::setHelperClassesMips16(), and llvm::MipsTargetMachine::setHelperClassesMipsSE().

uint64_t MipsFrameLowering::estimateStackSize ( const MachineFunction & MF ) const

protected

Definition at line 102 of file MipsFrameLowering.cpp.

References llvm::MachineFrameInfo::adjustsStack(), llvm::TargetRegisterInfo::getCalleeSavedRegs(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFrameInfo::getMaxAlignment(), llvm::MachineFrameInfo::getMaxCallFrameSize(), llvm::TargetRegisterInfo::getMinimalPhysRegClass(), llvm::MachineFrameInfo::getObjectIndexBegin(), llvm::MachineFrameInfo::getObjectIndexEnd(), llvm::MachineFrameInfo::getObjectOffset(), llvm::MachineFrameInfo::getObjectSize(), llvm::TargetMachine::getRegisterInfo(), llvm::TargetRegisterClass::getSize(), llvm::TargetFrameLowering::getStackAlignment(), llvm::MachineFunction::getTarget(), llvm::TargetFrameLowering::hasReservedCallFrame(), I, and llvm::RoundUpToAlignment().

Referenced by llvm::MipsSEFrameLowering::processFunctionBeforeCalleeSavedScan().

bool MipsFrameLowering::hasFP ( const MachineFunction & MF ) const

virtual

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

Implements llvm::TargetFrameLowering.

Definition at line 96 of file MipsFrameLowering.cpp.

References llvm::TargetOptions::DisableFramePointerElim(), llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getTarget(), llvm::MachineFrameInfo::hasVarSizedObjects(), llvm::MachineFrameInfo::isFrameAddressTaken(), and llvm::TargetMachine::Options.

Referenced by llvm::Mips16FrameLowering::emitEpilogue(), llvm::MipsSEFrameLowering::emitEpilogue(), llvm::Mips16FrameLowering::emitPrologue(), llvm::MipsSEFrameLowering::emitPrologue(), and llvm::MipsSEFrameLowering::processFunctionBeforeCalleeSavedScan().