PhysRegId Class Reference

Physical register ID. More...

#include <reg_class.hh>

Inheritance diagram for PhysRegId:

Public Member Functions
	PhysRegId ()
	PhysRegId (RegClass _regClass, PhysRegIndex _regIdx, PhysRegIndex _flatIdx)
	Scalar PhysRegId constructor. More...
	PhysRegId (RegClass _regClass, PhysRegIndex _regIdx, ElemIndex elem_idx, PhysRegIndex flat_idx)
	Vector PhysRegId constructor (w/ elemIndex). More...
bool	isIntPhysReg () const
bool	isFloatPhysReg () const
bool	isCCPhysReg () const
	@Return true if it is a condition-code physical register. More...
bool	isVectorPhysReg () const
	@Return true if it is a vector physical register. More...
bool	isVectorPhysElem () const
	@Return true if it is a vector element physical register. More...
bool	isVecPredPhysReg () const
bool	isMiscPhysReg () const
	@Return true if it is a condition-code physical register. More...
bool	isFixedMapping () const
	Returns true if this register is always associated to the same architectural register. More...
const PhysRegIndex &	flatIndex () const
	Flat index accessor. More...
int	getNumPinnedWrites () const
void	setNumPinnedWrites (int numWrites)
void	decrNumPinnedWrites ()
void	incrNumPinnedWrites ()
bool	isPinned () const
int	getNumPinnedWritesToComplete () const
void	setNumPinnedWritesToComplete (int numWrites)
void	decrNumPinnedWritesToComplete ()
void	incrNumPinnedWritesToComplete ()
bool	operator< (const PhysRegId &that) const
	Explicit forward methods, to prevent comparisons of PhysRegId with RegIds. More...
bool	operator== (const PhysRegId &that) const
bool	operator!= (const PhysRegId &that) const
const RegIndex &	index () const
	Visible RegId methods. More...
RegIndex &	index ()
	Visible RegId methods. More...
const RegClass &	classValue () const
	Class accessor. More...
bool	isZeroReg () const
	Check if this is the zero register. More...
const char *	className () const
	Return a const char* with the register class name. More...
const RegIndex &	elemIndex () const
	Elem accessor. More...

Static Public Member Functions
static PhysRegId	elemId (PhysRegId *vid, ElemIndex elem)

Private Attributes
PhysRegIndex	flatIdx
int	numPinnedWritesToComplete
bool	pinned
Private Attributes inherited from RegId
RegClass	regClass
RegIndex	regIdx
ElemIndex	elemIdx
int	numPinnedWrites

Additional Inherited Members
Private Member Functions inherited from RegId
	RegId ()
	RegId (RegClass reg_class, RegIndex reg_idx)
	RegId (RegClass reg_class, RegIndex reg_idx, ElemIndex elem_idx)
bool	operator== (const RegId &that) const
bool	operator!= (const RegId &that) const
bool	operator< (const RegId &that) const
	Order operator. More...
bool	isRenameable () const
	Return true if this register can be renamed. More...
bool	isZeroReg () const
	Check if this is the zero register. More...
bool	isIntReg () const
bool	isFloatReg () const
bool	isVecReg () const
	@Return true if it is a condition-code physical register. More...
bool	isVecElem () const
	@Return true if it is a condition-code physical register. More...
bool	isVecPredReg () const
	@Return true if it is a predicate physical register. More...
bool	isCCReg () const
	@Return true if it is a condition-code physical register. More...
bool	isMiscReg () const
	@Return true if it is a condition-code physical register. More...
bool	isRenameable ()
	Return true if this register can be renamed. More...
const RegIndex &	elemIndex () const
	Elem accessor. More...
const RegClass &	classValue () const
	Class accessor. More...
const char *	className () const
	Return a const char* with the register class name. More...
int	getNumPinnedWrites () const
void	setNumPinnedWrites (int num_writes)
const RegIndex &	index () const
	Index accessors. More...
RegIndex &	index ()
RegIndex	flatIndex () const
	Index flattening. More...
Static Private Attributes inherited from RegId
static const char *	regClassStrings []
static constexpr size_t	Scale = TheISA::NumVecElemPerVecReg

Detailed Description

Physical register ID.

Like a register ID but physical. The inheritance is private because the only relationship between this types is functional, and it is done to prevent code replication.

Definition at line 223 of file reg_class.hh.

Constructor & Destructor Documentation

PhysRegId() [1/3]

PhysRegId::PhysRegId ( )

inlineexplicit

Definition at line 230 of file reg_class.hh.

Referenced by elemId().

PhysRegId() [2/3]

PhysRegId::PhysRegId ( RegClass  _regClass, PhysRegIndex  _regIdx, PhysRegIndex  _flatIdx  )

inlineexplicit

Scalar PhysRegId constructor.

Definition at line 235 of file reg_class.hh.

PhysRegId() [3/3]

PhysRegId::PhysRegId ( RegClass  _regClass, PhysRegIndex  _regIdx, ElemIndex  elem_idx, PhysRegIndex  flat_idx  )

inlineexplicit

Vector PhysRegId constructor (w/ elemIndex).

Definition at line 242 of file reg_class.hh.

Member Function Documentation

className()

const char* RegId::className

inline

Return a const char* with the register class name.

Definition at line 202 of file reg_class.hh.

Referenced by UnifiedFreeList::addReg(), InstructionQueue< Impl >::addToDependents(), InstructionQueue< Impl >::addToProducers(), DefaultRename< Impl >::renameSrcRegs(), Scoreboard::setReg(), ElasticTrace::updateRegDep(), and InstructionQueue< Impl >::wakeDependents().

classValue()

const RegClass& RegId::classValue

inline

Class accessor.

Definition at line 200 of file reg_class.hh.

Referenced by UnifiedFreeList::addReg().

decrNumPinnedWrites()

void PhysRegId::decrNumPinnedWrites ( )

inline

Definition at line 327 of file reg_class.hh.

References RegId::numPinnedWrites.

Referenced by SimpleRenameMap::rename().

decrNumPinnedWritesToComplete()

void PhysRegId::decrNumPinnedWritesToComplete ( )

inline

Definition at line 342 of file reg_class.hh.

References numPinnedWritesToComplete.

Referenced by InstructionQueue< Impl >::wakeDependents().

elemId()

static PhysRegId PhysRegId::elemId ( PhysRegId *  vid, ElemIndex  elem  )

inlinestatic

Definition at line 307 of file reg_class.hh.

References index(), isVectorPhysReg(), PhysRegId(), and VecElemClass.

elemIndex()

const RegIndex& RegId::elemIndex

inline

Elem accessor.

Definition at line 198 of file reg_class.hh.

Referenced by PhysRegFile::readVecElem(), PhysRegFile::readVecLane(), PhysRegFile::setVecElem(), and PhysRegFile::setVecLane().

flatIndex()

const PhysRegIndex& PhysRegId::flatIndex ( ) const

inline

Flat index accessor.

Definition at line 305 of file reg_class.hh.

References flatIdx.

Referenced by InstructionQueue< Impl >::addToDependents(), InstructionQueue< Impl >::addToProducers(), InstructionQueue< Impl >::doSquash(), Scoreboard::getReg(), SimpleRenameMap::rename(), DefaultRename< Impl >::renameSrcRegs(), Scoreboard::setReg(), Scoreboard::unsetReg(), ElasticTrace::updateRegDep(), and InstructionQueue< Impl >::wakeDependents().

getNumPinnedWrites()

int PhysRegId::getNumPinnedWrites ( ) const

inline

Definition at line 313 of file reg_class.hh.

References RegId::numPinnedWrites.

Referenced by SimpleRenameMap::rename().

getNumPinnedWritesToComplete()

int PhysRegId::getNumPinnedWritesToComplete ( ) const

inline

Definition at line 332 of file reg_class.hh.

References numPinnedWritesToComplete.

Referenced by InstructionQueue< Impl >::wakeDependents().

incrNumPinnedWrites()

void PhysRegId::incrNumPinnedWrites ( )

inline

Definition at line 328 of file reg_class.hh.

References RegId::numPinnedWrites.

Referenced by BaseDynInst< Impl >::setSquashed().

incrNumPinnedWritesToComplete()

void PhysRegId::incrNumPinnedWritesToComplete ( )

inline

Definition at line 343 of file reg_class.hh.

References numPinnedWritesToComplete.

Referenced by BaseDynInst< Impl >::setSquashed().

index() [1/2]

RegIndex& RegId::index

inline

Visible RegId methods.

Definition at line 174 of file reg_class.hh.

index() [2/2]

const RegIndex& RegId::index

inline

Visible RegId methods.

Definition at line 173 of file reg_class.hh.

Referenced by UnifiedFreeList::addReg(), InstructionQueue< Impl >::addToDependents(), InstructionQueue< Impl >::addToProducers(), elemId(), PhysRegFile::readCCReg(), PhysRegFile::readFloatReg(), PhysRegFile::readIntReg(), PhysRegFile::readVecElem(), PhysRegFile::readVecPredReg(), PhysRegFile::readVecReg(), DefaultRename< Impl >::renameSrcRegs(), PhysRegFile::setCCReg(), PhysRegFile::setFloatReg(), PhysRegFile::setIntReg(), Scoreboard::setReg(), PhysRegFile::setVecElem(), PhysRegFile::setVecLane(), PhysRegFile::setVecPredReg(), PhysRegFile::setVecReg(), and InstructionQueue< Impl >::wakeDependents().

isCCPhysReg()

bool PhysRegId::isCCPhysReg ( ) const

inline

@Return true if it is a condition-code physical register.

Definition at line 281 of file reg_class.hh.

References RegId::isCCReg().

Referenced by PhysRegFile::readCCReg(), PhysRegFile::setCCReg(), and UnifiedRenameMap::setEntry().

isFixedMapping()

bool PhysRegId::isFixedMapping ( ) const

inline

Returns true if this register is always associated to the same architectural register.

Definition at line 299 of file reg_class.hh.

References RegId::isRenameable().

Referenced by InstructionQueue< Impl >::addToDependents(), InstructionQueue< Impl >::addToProducers(), InstructionQueue< Impl >::doSquash(), Scoreboard::getReg(), Scoreboard::setReg(), Scoreboard::unsetReg(), and InstructionQueue< Impl >::wakeDependents().

isFloatPhysReg()

bool PhysRegId::isFloatPhysReg ( ) const

inline

Returns

true if it is a floating-point physical register.

Definition at line 278 of file reg_class.hh.

References RegId::isFloatReg().

Referenced by PhysRegFile::readFloatReg(), UnifiedRenameMap::setEntry(), and PhysRegFile::setFloatReg().

isIntPhysReg()

bool PhysRegId::isIntPhysReg ( ) const

inline

Returns

true if it is an integer physical register.

Definition at line 275 of file reg_class.hh.

References RegId::isIntReg().

Referenced by PhysRegFile::readIntReg(), UnifiedRenameMap::setEntry(), and PhysRegFile::setIntReg().

isMiscPhysReg()

bool PhysRegId::isMiscPhysReg ( ) const

inline

@Return true if it is a condition-code physical register.

Definition at line 293 of file reg_class.hh.

References RegId::isMiscReg().

isPinned()

bool PhysRegId::isPinned ( ) const

inline

Definition at line 330 of file reg_class.hh.

References pinned.

Referenced by BaseDynInst< Impl >::renameDestReg(), BaseDynInst< Impl >::setSquashed(), and InstructionQueue< Impl >::wakeDependents().

isVecPredPhysReg()

bool PhysRegId::isVecPredPhysReg ( ) const

inline

Returns

true if it is a vector predicate physical register.

Definition at line 290 of file reg_class.hh.

References RegId::isVecPredReg().

Referenced by PhysRegFile::readVecPredReg(), UnifiedRenameMap::setEntry(), and PhysRegFile::setVecPredReg().

isVectorPhysElem()

bool PhysRegId::isVectorPhysElem ( ) const

inline

@Return true if it is a vector element physical register.

Definition at line 287 of file reg_class.hh.

References RegId::isVecElem().

Referenced by PhysRegFile::readVecElem(), UnifiedRenameMap::setEntry(), and PhysRegFile::setVecElem().

isVectorPhysReg()

bool PhysRegId::isVectorPhysReg ( ) const

inline

@Return true if it is a vector physical register.

Definition at line 284 of file reg_class.hh.

References RegId::isVecReg().

Referenced by elemId(), PhysRegFile::readVecReg(), UnifiedRenameMap::setEntry(), PhysRegFile::setVecLane(), and PhysRegFile::setVecReg().

isZeroReg()

bool RegId::isZeroReg

inline

Check if this is the zero register.

Returns true if this register is a zero register (needs to have a constant zero value throughout the execution).

Definition at line 137 of file reg_class.hh.

Referenced by Scoreboard::getReg(), SimpleRenameMap::rename(), PhysRegFile::setFloatReg(), PhysRegFile::setIntReg(), and Scoreboard::unsetReg().

operator!=()

bool PhysRegId::operator!= ( const PhysRegId &  that ) const

inline

Definition at line 269 of file reg_class.hh.

References RegId::operator!=().

operator<()

bool PhysRegId::operator< ( const PhysRegId &  that ) const

inline

Explicit forward methods, to prevent comparisons of PhysRegId with RegIds.

Definition at line 261 of file reg_class.hh.

References RegId::operator<().

operator==()

bool PhysRegId::operator== ( const PhysRegId &  that ) const

inline

Definition at line 265 of file reg_class.hh.

References RegId::operator==().

setNumPinnedWrites()

void PhysRegId::setNumPinnedWrites ( int  numWrites )

inline

Definition at line 315 of file reg_class.hh.

References RegId::numPinnedWrites, and pinned.

Referenced by SimpleRenameMap::rename().

setNumPinnedWritesToComplete()

void PhysRegId::setNumPinnedWritesToComplete ( int  numWrites )

inline

Definition at line 337 of file reg_class.hh.

References numPinnedWritesToComplete.

Referenced by SimpleRenameMap::rename().

Member Data Documentation

flatIdx

PhysRegIndex PhysRegId::flatIdx

private

Definition at line 225 of file reg_class.hh.

Referenced by flatIndex().

numPinnedWritesToComplete

int PhysRegId::numPinnedWritesToComplete

private

Definition at line 226 of file reg_class.hh.

Referenced by decrNumPinnedWritesToComplete(), getNumPinnedWritesToComplete(), incrNumPinnedWritesToComplete(), and setNumPinnedWritesToComplete().

pinned

bool PhysRegId::pinned

private

Definition at line 227 of file reg_class.hh.

Referenced by isPinned(), and setNumPinnedWrites().

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

• cpu/reg_class.hh