Collect register related information into a single struct. More...

#include <dyn_inst.hh>

Public Member Functions
size_t	numSrcs () const

size_t	numDests () const

void	init ()

	Regs (size_t srcs, size_t dests)

const RegId &	flattenedDestIdx (int idx) const

void	flattenedDestIdx (int idx, const RegId &reg_id)

PhysRegIdPtr	renamedDestIdx (int idx) const

void	renamedDestIdx (int idx, PhysRegIdPtr phys_reg_id)

PhysRegIdPtr	prevDestIdx (int idx) const

void	prevDestIdx (int idx, PhysRegIdPtr phys_reg_id)

PhysRegIdPtr	renamedSrcIdx (int idx) const

void	renamedSrcIdx (int idx, PhysRegIdPtr phys_reg_id)

bool	readySrcIdx (int idx) const

void	readySrcIdx (int idx, bool ready)

Private Types
using	BackingStorePtr = std::unique_ptr< uint8_t[]>

using	BufCursor = BackingStorePtr::pointer

Static Private Member Functions
static size_t	bytesForDests (size_t num)

static size_t	bytesForSources (size_t num)

template<class T >
static void	allocate (T *&ptr, BufCursor &cur, size_t count)

Private Attributes
size_t	_numSrcs

size_t	_numDests

BackingStorePtr	buf

RegId *	_flatDestIdx

PhysRegIdPtr *	_destIdx

PhysRegIdPtr *	_prevDestIdx

PhysRegIdPtr *	_srcIdx

uint8_t *	_readySrcIdx

Detailed Description

Collect register related information into a single struct.

The number of source and destination registers can vary, and storage for information about them needs to be allocated dynamically. This class figures out how much space is needed and allocates it all at once, and then trivially divies it up for each type of per-register array.

Definition at line 203 of file dyn_inst.hh.

Member Typedef Documentation

◆ BackingStorePtr

using gem5::o3::DynInst::Regs::BackingStorePtr = std::unique_ptr<uint8_t[]>

private

Definition at line 209 of file dyn_inst.hh.

◆ BufCursor

using gem5::o3::DynInst::Regs::BufCursor = BackingStorePtr::pointer

private

Definition at line 210 of file dyn_inst.hh.

Constructor & Destructor Documentation

◆ Regs()

gem5::o3::DynInst::Regs::Regs	(	size_t	srcs,
		size_t	dests
	)

inline

Definition at line 266 of file dyn_inst.hh.

References _destIdx, _flatDestIdx, _prevDestIdx, _readySrcIdx, _srcIdx, allocate(), buf, and init().

Member Function Documentation

◆ allocate()

template<class T >

static void gem5::o3::DynInst::Regs::allocate	(	T *&	ptr,
		BufCursor &	cur,
		size_t	count
	)

inlinestaticprivate

Definition at line 250 of file dyn_inst.hh.

References gem5::RefCounted::count.

Referenced by Regs().

◆ bytesForDests()

static size_t gem5::o3::DynInst::Regs::bytesForDests ( size_t num )

inlinestaticprivate

Definition at line 230 of file dyn_inst.hh.

◆ bytesForSources()

static size_t gem5::o3::DynInst::Regs::bytesForSources ( size_t num )

inlinestaticprivate

Definition at line 242 of file dyn_inst.hh.

◆ flattenedDestIdx() [1/2]

const RegId& gem5::o3::DynInst::Regs::flattenedDestIdx ( int idx ) const

inline

Definition at line 282 of file dyn_inst.hh.

References _flatDestIdx.

◆ flattenedDestIdx() [2/2]

void gem5::o3::DynInst::Regs::flattenedDestIdx	(	int	idx,
		const RegId &	reg_id
	)

inline

Definition at line 290 of file dyn_inst.hh.

References _flatDestIdx.

◆ init()

void gem5::o3::DynInst::Regs::init ( )

inline

Definition at line 261 of file dyn_inst.hh.

References _readySrcIdx, gem5::MipsISA::fill, and numSrcs().

Referenced by gem5::o3::DynInst::DynInst(), and Regs().

◆ numDests()

size_t gem5::o3::DynInst::Regs::numDests ( ) const

inline

Definition at line 258 of file dyn_inst.hh.

References _numDests.

Referenced by gem5::o3::DynInst::numDestRegs().

◆ numSrcs()

size_t gem5::o3::DynInst::Regs::numSrcs ( ) const

inline

Definition at line 257 of file dyn_inst.hh.

References _numSrcs.

Referenced by init(), and gem5::o3::DynInst::numSrcRegs().

◆ prevDestIdx() [1/2]

PhysRegIdPtr gem5::o3::DynInst::Regs::prevDestIdx ( int idx ) const

inline

Definition at line 313 of file dyn_inst.hh.

References _prevDestIdx.

Referenced by gem5::o3::DynInst::forwardOldRegs(), and gem5::o3::DynInst::renameDestReg().

◆ prevDestIdx() [2/2]

void gem5::o3::DynInst::Regs::prevDestIdx	(	int	idx,
		PhysRegIdPtr	phys_reg_id
	)

inline

Definition at line 320 of file dyn_inst.hh.

References _prevDestIdx.

◆ readySrcIdx() [1/2]

bool gem5::o3::DynInst::Regs::readySrcIdx ( int idx ) const

inline

Definition at line 339 of file dyn_inst.hh.

References _readySrcIdx, and gem5::bits().

Referenced by gem5::o3::DynInst::markSrcRegReady().

◆ readySrcIdx() [2/2]

void gem5::o3::DynInst::Regs::readySrcIdx	(	int	idx,
		bool	ready
	)

inline

Definition at line 346 of file dyn_inst.hh.

References _readySrcIdx, and gem5::replaceBits().

◆ renamedDestIdx() [1/2]

PhysRegIdPtr gem5::o3::DynInst::Regs::renamedDestIdx ( int idx ) const

inline

Definition at line 298 of file dyn_inst.hh.

References _destIdx.

Referenced by gem5::o3::DynInst::getWritableVecPredRegOperand(), gem5::o3::DynInst::getWritableVecRegOperand(), gem5::o3::DynInst::renameDestReg(), gem5::o3::DynInst::setCCRegOperand(), gem5::o3::DynInst::setFloatRegOperandBits(), gem5::o3::DynInst::setIntRegOperand(), gem5::o3::DynInst::setSquashed(), gem5::o3::DynInst::setVecElemOperand(), gem5::o3::DynInst::setVecPredRegOperand(), and gem5::o3::DynInst::setVecRegOperand().

◆ renamedDestIdx() [2/2]

void gem5::o3::DynInst::Regs::renamedDestIdx	(	int	idx,
		PhysRegIdPtr	phys_reg_id
	)

inline

Definition at line 305 of file dyn_inst.hh.

References _destIdx.

◆ renamedSrcIdx() [1/2]

PhysRegIdPtr gem5::o3::DynInst::Regs::renamedSrcIdx ( int idx ) const

inline

Definition at line 327 of file dyn_inst.hh.

References _srcIdx.

Referenced by gem5::o3::DynInst::readCCRegOperand(), gem5::o3::DynInst::readFloatRegOperandBits(), gem5::o3::DynInst::readIntRegOperand(), gem5::o3::DynInst::readVecElemOperand(), gem5::o3::DynInst::readVecPredRegOperand(), gem5::o3::DynInst::readVecRegOperand(), and gem5::o3::DynInst::renameSrcReg().

◆ renamedSrcIdx() [2/2]

void gem5::o3::DynInst::Regs::renamedSrcIdx	(	int	idx,
		PhysRegIdPtr	phys_reg_id
	)

inline

Definition at line 333 of file dyn_inst.hh.

References _srcIdx.

Member Data Documentation

◆ _destIdx

PhysRegIdPtr* gem5::o3::DynInst::Regs::_destIdx

private

Definition at line 223 of file dyn_inst.hh.

Referenced by Regs(), and renamedDestIdx().

◆ _flatDestIdx

RegId* gem5::o3::DynInst::Regs::_flatDestIdx

private

Definition at line 219 of file dyn_inst.hh.

Referenced by flattenedDestIdx(), and Regs().

◆ _numDests

size_t gem5::o3::DynInst::Regs::_numDests

private

Definition at line 207 of file dyn_inst.hh.

Referenced by numDests().

◆ _numSrcs

size_t gem5::o3::DynInst::Regs::_numSrcs

private

Definition at line 206 of file dyn_inst.hh.

Referenced by numSrcs().

◆ _prevDestIdx

PhysRegIdPtr* gem5::o3::DynInst::Regs::_prevDestIdx

private

Definition at line 227 of file dyn_inst.hh.

Referenced by prevDestIdx(), and Regs().

◆ _readySrcIdx

uint8_t* gem5::o3::DynInst::Regs::_readySrcIdx

private

Definition at line 239 of file dyn_inst.hh.

Referenced by init(), readySrcIdx(), and Regs().

◆ _srcIdx

PhysRegIdPtr* gem5::o3::DynInst::Regs::_srcIdx

private

Definition at line 236 of file dyn_inst.hh.

Referenced by Regs(), and renamedSrcIdx().

◆ buf

BackingStorePtr gem5::o3::DynInst::Regs::buf

private

Definition at line 212 of file dyn_inst.hh.

Referenced by Regs().

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

cpu/o3/dyn_inst.hh

Public Member Functions

Private Types

Static Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ BackingStorePtr

◆ BufCursor

Constructor & Destructor Documentation

◆ Regs()

Member Function Documentation

◆ allocate()

◆ bytesForDests()

◆ bytesForSources()

◆ flattenedDestIdx() [1/2]

◆ flattenedDestIdx() [2/2]

◆ init()

◆ numDests()

◆ numSrcs()

◆ prevDestIdx() [1/2]

◆ prevDestIdx() [2/2]

◆ readySrcIdx() [1/2]

◆ readySrcIdx() [2/2]

◆ renamedDestIdx() [1/2]

◆ renamedDestIdx() [2/2]

◆ renamedSrcIdx() [1/2]

◆ renamedSrcIdx() [2/2]

Member Data Documentation

◆ _destIdx

◆ _flatDestIdx

◆ _numDests

◆ _numSrcs

◆ _prevDestIdx

◆ _readySrcIdx

◆ _srcIdx

◆ buf