gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo Class Reference

Branch information data. More...

#include <multiperspective_perceptron.hh>

Inheritance diagram for gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo:

Public Member Functions
	MPPBranchInfo (Addr _pc, int pcshift, bool cb)
unsigned int	getPC () const
unsigned short int	getPC2 () const
unsigned short int	getHPC () const
unsigned int	getHashFilter (bool last_ghist_bit) const
bool	isUnconditional () const

Public Attributes
bool	filtered
	Whether this branch has been filtered by the prefetcher.
bool	prediction
	Result of the prediction (true is taken)
int	yout
	Score of the perceptron.

Static Private Member Functions
static unsigned int	hash1 (unsigned int a)
	PC Hash functions.
static unsigned int	hash2 (unsigned int key)
static unsigned int	hash (unsigned int key, unsigned int i)
static unsigned int	hashPC (unsigned int pc, int pcshift)

Private Attributes
const unsigned int	pc
	pc of the branch
const unsigned short int	pc2
	pc of the branch, shifted 2 bits to the right
const unsigned short int	hpc
	pc of the branch, hashed
const bool	condBranch
	Whether this is a conditional branch.

Detailed Description

Branch information data.

Definition at line 73 of file multiperspective_perceptron.hh.

Constructor & Destructor Documentation

MPPBranchInfo()

gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::MPPBranchInfo ( Addr  _pc, int  pcshift, bool  cb  )

inline

Definition at line 133 of file multiperspective_perceptron.hh.

Member Function Documentation

getHashFilter()

unsigned int gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::getHashFilter ( bool  last_ghist_bit ) const

inline

Definition at line 150 of file multiperspective_perceptron.hh.

References hpc.

Referenced by gem5::branch_prediction::MultiperspectivePerceptron::update().

getHPC()

unsigned short int gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::getHPC ( ) const

inline

Definition at line 146 of file multiperspective_perceptron.hh.

References hpc.

getPC()

unsigned int gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::getPC ( ) const

inline

Definition at line 138 of file multiperspective_perceptron.hh.

References pc.

getPC2()

unsigned short int gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::getPC2 ( ) const

inline

Definition at line 142 of file multiperspective_perceptron.hh.

References pc2.

hash()

static unsigned int gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::hash ( unsigned int  key, unsigned int  i  )

inlinestaticprivate

Definition at line 107 of file multiperspective_perceptron.hh.

References hash1(), hash2(), and gem5::ArmISA::i.

Referenced by hashPC().

hash1()

static unsigned int gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::hash1 ( unsigned int  a )

inlinestaticprivate

PC Hash functions.

Definition at line 87 of file multiperspective_perceptron.hh.

References gem5::ArmISA::a.

Referenced by hash().

hash2()

static unsigned int gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::hash2 ( unsigned int  key )

inlinestaticprivate

Definition at line 96 of file multiperspective_perceptron.hh.

References gem5::MipsISA::c2.

Referenced by hash().

hashPC()

static unsigned int gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::hashPC ( unsigned int  pc, int  pcshift  )

inlinestaticprivate

Definition at line 112 of file multiperspective_perceptron.hh.

References hash(), pc, gem5::branch_prediction::MultiperspectivePerceptron::pcshift, and gem5::RiscvISA::x.

isUnconditional()

bool gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::isUnconditional ( ) const

inline

Definition at line 154 of file multiperspective_perceptron.hh.

References condBranch.

Member Data Documentation

condBranch

const bool gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::condBranch

private

Whether this is a conditional branch.

Definition at line 82 of file multiperspective_perceptron.hh.

Referenced by isUnconditional().

filtered

bool gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::filtered

Whether this branch has been filtered by the prefetcher.

Definition at line 127 of file multiperspective_perceptron.hh.

hpc

const unsigned short int gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::hpc

private

pc of the branch, hashed

Definition at line 80 of file multiperspective_perceptron.hh.

Referenced by getHashFilter(), and getHPC().

pc

const unsigned int gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::pc

private

pc of the branch

Definition at line 76 of file multiperspective_perceptron.hh.

Referenced by getPC(), and hashPC().

pc2

const unsigned short int gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::pc2

private

pc of the branch, shifted 2 bits to the right

Definition at line 78 of file multiperspective_perceptron.hh.

Referenced by getPC2().

prediction

bool gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::prediction

Result of the prediction (true is taken)

Definition at line 129 of file multiperspective_perceptron.hh.

yout

int gem5::branch_prediction::MultiperspectivePerceptron::MPPBranchInfo::yout

Score of the perceptron.

Definition at line 131 of file multiperspective_perceptron.hh.

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

• cpu/pred/multiperspective_perceptron.hh