llvm::mca::WriteRef Class Reference

A reference to a register write. More...

#include "llvm/MCA/HardwareUnits/RegisterFile.h"

Public Member Functions
	WriteRef ()
	WriteRef (unsigned SourceIndex, WriteState *WS)
unsigned	getSourceIndex () const
unsigned	getWriteBackCycle () const
const WriteState *	getWriteState () const
WriteState *	getWriteState ()
unsigned	getWriteResourceID () const
MCPhysReg	getRegisterID () const
void	commit ()
void	notifyExecuted (unsigned Cycle)
bool	hasKnownWriteBackCycle () const
bool	isWriteZero () const
bool	isValid () const
bool	isAvailable () const
	Returns true if this register write has been executed, and the new register value is therefore available to users.
bool	operator== (const WriteRef &Other) const
void	dump () const

Detailed Description

A reference to a register write.

This class is mainly used by the register file to describe register mappings. It correlates a register write to the source index of the defining instruction.

Definition at line 38 of file RegisterFile.h.

Constructor & Destructor Documentation

WriteRef() [1/2]

llvm::mca::WriteRef::WriteRef ( )

inline

Definition at line 48 of file RegisterFile.h.

References llvm::Write.

WriteRef() [2/2]

llvm::mca::WriteRef::WriteRef	(	unsigned	SourceIndex,
		WriteState *	WS
	)

Definition at line 32 of file RegisterFile.cpp.

Member Function Documentation

commit()

void llvm::mca::WriteRef::commit

(

)

Definition at line 36 of file RegisterFile.cpp.

References assert(), llvm::mca::WriteState::getRegisterID(), llvm::mca::WriteState::getWriteResourceID(), and llvm::mca::WriteState::isExecuted().

Referenced by llvm::mca::RegisterFile::removeRegisterWrite().

dump()

void llvm::mca::WriteRef::dump

(

)

const

Definition at line 717 of file RegisterFile.cpp.

References llvm::dbgs(), llvm::mca::WriteState::dump(), getSourceIndex(), getWriteState(), and isValid().

getRegisterID()

MCPhysReg llvm::mca::WriteRef::getRegisterID

(

)

const

Definition at line 63 of file RegisterFile.cpp.

References llvm::mca::WriteState::getRegisterID().

getSourceIndex()

unsigned llvm::mca::WriteRef::getSourceIndex ( ) const

inline

Definition at line 53 of file RegisterFile.h.

Referenced by llvm::mca::RegisterFile::addRegisterWrite(), llvm::mca::RegisterFile::collectWrites(), dump(), and isValid().

getWriteBackCycle()

unsigned llvm::mca::WriteRef::getWriteBackCycle

(

)

const

Definition at line 498 of file RegisterFile.cpp.

References assert(), llvm::mca::WriteState::getCyclesLeft(), and hasKnownWriteBackCycle().

Referenced by llvm::mca::RegisterFile::getElapsedCyclesFromWriteBack().

getWriteResourceID()

unsigned llvm::mca::WriteRef::getWriteResourceID

(

)

const

Definition at line 57 of file RegisterFile.cpp.

References llvm::mca::WriteState::getWriteResourceID().

Referenced by llvm::mca::RegisterFile::collectWrites().

getWriteState() [1/2]

WriteState * llvm::mca::WriteRef::getWriteState ( )

inline

Definition at line 57 of file RegisterFile.h.

References llvm::Write.

getWriteState() [2/2]

const WriteState * llvm::mca::WriteRef::getWriteState ( ) const

inline

Definition at line 56 of file RegisterFile.h.

References llvm::Write.

Referenced by llvm::mca::RegisterFile::addRegisterWrite(), llvm::mca::RegisterFile::collectWrites(), dump(), isWriteZero(), llvm::mca::RegisterFile::onInstructionExecuted(), and llvm::mca::RegisterFile::removeRegisterWrite().

hasKnownWriteBackCycle()

bool llvm::mca::WriteRef::hasKnownWriteBackCycle

(

)

const

Definition at line 48 of file RegisterFile.cpp.

References llvm::mca::WriteState::isExecuted(), and isValid().

Referenced by llvm::mca::RegisterFile::collectWrites(), llvm::mca::RegisterFile::getElapsedCyclesFromWriteBack(), getWriteBackCycle(), and isAvailable().

isAvailable()

bool llvm::mca::WriteRef::isAvailable ( ) const

inline

Returns true if this register write has been executed, and the new register value is therefore available to users.

Definition at line 70 of file RegisterFile.h.

References hasKnownWriteBackCycle().

isValid()

bool llvm::mca::WriteRef::isValid ( ) const

inline

Definition at line 66 of file RegisterFile.h.

References getSourceIndex().

Referenced by dump(), hasKnownWriteBackCycle(), and isWriteZero().

isWriteZero()

bool llvm::mca::WriteRef::isWriteZero

(

)

const

Definition at line 52 of file RegisterFile.cpp.

References assert(), getWriteState(), isValid(), and llvm::mca::WriteState::isWriteZero().

notifyExecuted()

void llvm::mca::WriteRef::notifyExecuted

(

unsigned

Cycle

)

Definition at line 43 of file RegisterFile.cpp.

References assert(), and llvm::mca::WriteState::isExecuted().

Referenced by llvm::mca::RegisterFile::onInstructionExecuted().

operator==()

bool llvm::mca::WriteRef::operator== ( const WriteRef &  Other ) const

inline

Definition at line 72 of file RegisterFile.h.

References llvm::Other, and llvm::Write.

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

• include/llvm/MCA/HardwareUnits/RegisterFile.h
• lib/MCA/HardwareUnits/RegisterFile.cpp