MultiperspectivePerceptron::GHIST Class Reference

Available features. More...

#include <multiperspective_perceptron.hh>

Inheritance diagram for MultiperspectivePerceptron::GHIST:

Public Member Functions
	GHIST (int p1, int p2, double coeff, int size, int width, MultiperspectivePerceptron &mpp)
unsigned int	getHash (ThreadID tid, Addr pc, Addr pc2, int t) const override
	Gets the hash to index the table, using the pc of the branch, and the index of the table. More...
void	setBitRequirements () const override
	Sets the size requirements of the table, used when initializing to set the proper size of the tables. More...
Public Member Functions inherited from MultiperspectivePerceptron::HistorySpec
	HistorySpec (int _p1, int _p2, int _p3, double _coeff, int _size, int _width, MultiperspectivePerceptron &_mpp)

Static Public Member Functions
static unsigned int	hash (const std::vector< unsigned int > &ghist_words, int block_size, int start_pos, int end_pos)

Additional Inherited Members
Public Attributes inherited from MultiperspectivePerceptron::HistorySpec
const int	p1
	First parameter. More...
const int	p2
	Second parameter. More...
const int	p3
	Third parameter. More...
const double	coeff
	Coefficient of the feature, models the accuracy of the feature. More...
const int	size
	Pre-assigned size in bits assigned to this feature. More...
const int	width
	Width of the table in bits More...
MultiperspectivePerceptron &	mpp
	Reference to the branch predictor class. More...

Detailed Description

Available features.

Definition at line 483 of file multiperspective_perceptron.hh.

Constructor & Destructor Documentation

GHIST()

MultiperspectivePerceptron::GHIST::GHIST ( int  p1, int  p2, double  coeff, int  size, int  width, MultiperspectivePerceptron &  mpp  )

inline

Definition at line 485 of file multiperspective_perceptron.hh.

Member Function Documentation

getHash()

unsigned int MultiperspectivePerceptron::GHIST::getHash ( ThreadID  tid, Addr  pc, Addr  pc2, int  t  ) const

inlineoverridevirtual

Gets the hash to index the table, using the pc of the branch, and the index of the table.

Parameters

tid	Thread ID of the branch
pc	address of the branch
pc2	address of the branch shifted 2 bits to the right
t	integer index of the table

Returns

resulting hash value that will be used to index the table

Implements MultiperspectivePerceptron::HistorySpec.

Definition at line 490 of file multiperspective_perceptron.hh.

References MultiperspectivePerceptron::blockSize, hash(), MultiperspectivePerceptron::HistorySpec::mpp, MultiperspectivePerceptron::HistorySpec::p1, MultiperspectivePerceptron::HistorySpec::p2, and MultiperspectivePerceptron::threadData.

hash()

static unsigned int MultiperspectivePerceptron::GHIST::hash ( const std::vector< unsigned int > &  ghist_words, int  block_size, int  start_pos, int  end_pos  )

inlinestatic

Definition at line 497 of file multiperspective_perceptron.hh.

References ArmISA::a, SparcISA::am, ArmISA::b, ArmISA::i, and RiscvISA::x.

Referenced by getHash().

setBitRequirements()

void MultiperspectivePerceptron::GHIST::setBitRequirements ( ) const

inlineoverridevirtual

Sets the size requirements of the table, used when initializing to set the proper size of the tables.

Reimplemented from MultiperspectivePerceptron::HistorySpec.

Definition at line 526 of file multiperspective_perceptron.hh.

References MultiperspectivePerceptron::ghist_length, MultiperspectivePerceptron::HistorySpec::mpp, and MultiperspectivePerceptron::HistorySpec::p2.

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

• cpu/pred/multiperspective_perceptron.hh