simd::HAcc< HOp, T, SIMD_WIDTH > Struct Template Reference

Iterative horizontal accumulator. Calculates the horizontal accumulation of multiple (Vec<T, SIMD_WIDTH>::elems) Vec's into a single Vec in parallel with the Vec's to be accumulated pushed one by one. More...

Detailed Description

template<class HOp, typename T, size_t SIMD_WIDTH>
struct simd::HAcc< HOp, T, SIMD_WIDTH >

Iterative horizontal accumulator. Calculates the horizontal accumulation of multiple (Vec<T, SIMD_WIDTH>::elems) Vec's into a single Vec in parallel with the Vec's to be accumulated pushed one by one.

Template Parameters

HOp	horizontal accumulation operation, one of HAdd, HAdds, HMin, HMax

Public Member Functions
void	finish ()
	Finishes the horizontal accumulation by pushing neutral values until the horizontal accumulation is done.
Vec< T, SIMD_WIDTH >	get ()
	Gets the result of the horizontal accumulation. Finishes the horizontal accumulation if it is not done yet.
bool	isDone () const
	Checks if the horizontal accumulation is done.
bool	isEmpty () const
	Checks if the horizontal accumulation is empty, i.e. if no Vec has been pushed yet.
void	push (const Vec< T, SIMD_WIDTH > &v)
	Pushes the next Vec to be horizontally accumulated. Does nothing if the horizontal accumulation is already done.
void	reset ()
	Resets the horizontal accumulation.

Member Function Documentation

get()

template<class HOp , typename T , size_t SIMD_WIDTH>

Vec< T, SIMD_WIDTH > simd::HAcc< HOp, T, SIMD_WIDTH >::get ( )

inline

Gets the result of the horizontal accumulation. Finishes the horizontal accumulation if it is not done yet.

Returns

result of the horizontal accumulation

isDone()

template<class HOp , typename T , size_t SIMD_WIDTH>

bool simd::HAcc< HOp, T, SIMD_WIDTH >::isDone ( ) const

inline

Checks if the horizontal accumulation is done.

Returns

whether the horizontal accumulation is done

isEmpty()

template<class HOp , typename T , size_t SIMD_WIDTH>

bool simd::HAcc< HOp, T, SIMD_WIDTH >::isEmpty ( ) const

inline

Checks if the horizontal accumulation is empty, i.e. if no Vec has been pushed yet.

Returns

whether the horizontal accumulation is empty

push()

template<class HOp , typename T , size_t SIMD_WIDTH>

void simd::HAcc< HOp, T, SIMD_WIDTH >::push ( const Vec< T, SIMD_WIDTH > & v )

inline

Pushes the next Vec to be horizontally accumulated. Does nothing if the horizontal accumulation is already done.

Parameters

v	Vec to be pushed