vspline::simd_type< _value_type, _vsize > Struct Template Reference

class template simd_type provides a fixed-size container type for small sets of fundamentals which are stored in a C vector. The type offers arithmetic capabilities which are implemented by using loops over the elements in the vector, expecting that the compiler will autovectorize these loops into 'proper' SIMD code. The interface of this type is modelled to be compatible with Vc's SimdArray. Unfortunately, Vc::SimdArray requires additional template arguments, so at times it's difficult to use the two types instead of each other. The interface compatibility does not mean that the arithmetic will produce the same results - this is intended but neither tested nor enforced. More...

#include <simd_type.h>

Inheritance diagram for vspline::simd_type< _value_type, _vsize >:

Classes
struct	masked_type

Public Types
typedef std::size_t	size_type
typedef _value_type	value_type
typedef simd_type< bool, vsize >	mask_type
typedef simd_type< int, vsize >	index_type
typedef simd_type< bool, vsize >	MaskType
typedef simd_type< int, vsize >	IndexType
typedef std::experimental::simd_abi::fixed_size< _vsize >	abi_t
typedef std::size_t	size_type
typedef _value_type	value_type
typedef std::experimental::simd< value_type, abi_t >	base_t
typedef std::experimental::simd< int, abi_t >	index_type
typedef mask_type	MaskType
typedef index_type	IndexType
typedef std::experimental::where_expression< mask_type, base_t >	we_t

Public Member Functions
value_type &	operator[] (const size_type &i)
const value_type &	operator[] (const size_type &i) const
simd_type &	operator= (const value_type &rhs)
	simd_type (const value_type &ini)
	simd_type ()=default
	simd_type (const simd_type &)=default
template<typename U , typename V , std::size_t Wt, template< typename, std::size_t, typename, std::size_t > class W>
simd_type &	operator= (const W< U, vsize, V, Wt > &rhs)
template<typename U , typename V , std::size_t Wt, template< typename, std::size_t, typename, std::size_t > class W>
	simd_type (const W< U, vsize, V, Wt > &ini)
void	load (const value_type *const p_src)
template<typename index_type >
void	gather (const value_type *const p_src, const index_type &indexes)
template<typename index_type >
	simd_type (const value_type *const p_src, const index_type &indexes)
void	store (value_type *const p_trg) const
template<typename index_type >
void	scatter (value_type *const p_trg, const index_type &indexes) const
void	rgather (const value_type *const p_src, const int &step)
void	rscatter (value_type *p_trg, const int &step) const
template<typename index_type >
simd_type	shuffle (index_type indexes)
simd_type	operator[] (index_type indexes)
	COMPARE_FUNC (operator<,<)
	COMPARE_FUNC (operator<=,<=)
	COMPARE_FUNC (operator>,>)
	COMPARE_FUNC (operator>=,>=)
	COMPARE_FUNC (operator==,==)
	COMPARE_FUNC (operator!=,!=)
masked_type	operator() (mask_type mask)
value_type	sum () const
simd_type &	operator= (const value_type &rhs)
	simd_type (const value_type &ini)
	simd_type (const base_t &ini)
	simd_type ()=default
	simd_type (const simd_type &)=default
base_t &	to_base ()
const base_t &	to_base () const
void	load (const value_type *const p_src)
template<typename index_type >
void	gather (const value_type *const p_src, const index_type &indexes)
template<typename index_type >
	simd_type (const value_type *const p_src, const index_type &indexes)
void	store (value_type *const p_trg) const
template<typename index_type >
void	scatter (value_type *const p_trg, const index_type &indexes) const
void	rgather (const value_type *const p_src, const std::size_t &step)
void	rscatter (value_type *p_trg, const std::size_t &step) const
	COMPARE_FUNC (<, operator<)
	COMPARE_FUNC (<=, operator<=)
	COMPARE_FUNC (>, operator>)
	COMPARE_FUNC (>=, operator>=)
	COMPARE_FUNC (==, operator==)
	COMPARE_FUNC (!=, operator!=)
masked_type	operator() (mask_type mask)
value_type	sum () const

Static Public Member Functions
static constexpr size_type	size ()
static const simd_type	iota ()
static const index_type	IndexesFromZero ()
static const index_type	IndexesFrom (std::size_t start, std::size_t step=1)
static const simd_type	Zero ()
static const simd_type	One ()
static mask_type	isnegative (const simd_type &rhs)
static mask_type	isfinite (const simd_type &rhs)
static mask_type	isnan (const simd_type &rhs)
static constexpr size_type	size ()
static const simd_type	iota ()
static const index_type	IndexesFromZero ()
static const index_type	IndexesFrom (std::size_t start, std::size_t step=1)
static const simd_type	Zero ()
static const simd_type	One ()

Static Public Attributes
static const size_type	vsize = _vsize
static const int	ivsize = _vsize

Friends
std::ostream &	operator<< (std::ostream &osr, simd_type it)
std::istream &	operator>> (std::istream &isr, simd_type it)
std::ostream &	operator<< (std::ostream &osr, simd_type it)
std::istream &	operator>> (std::istream &isr, simd_type it)
simd_type	abs (simd_type arg)

Detailed Description

template<typename _value_type, std::size_t _vsize>
struct vspline::simd_type< _value_type, _vsize >

class template simd_type provides a fixed-size container type for small sets of fundamentals which are stored in a C vector. The type offers arithmetic capabilities which are implemented by using loops over the elements in the vector, expecting that the compiler will autovectorize these loops into 'proper' SIMD code. The interface of this type is modelled to be compatible with Vc's SimdArray. Unfortunately, Vc::SimdArray requires additional template arguments, so at times it's difficult to use the two types instead of each other. The interface compatibility does not mean that the arithmetic will produce the same results - this is intended but neither tested nor enforced.

class template simd_type provides a fixed-size SIMD type. This implementation of vspline::simd_type uses std::simd as base class. This class is used as a stand-in for Vc::SimdArray

• it does not cover the whole interface, but a reasonably large subset - my choice of SimdArray functionality is what I need in lux/vspline. Most of the 'loop variant' of simd_type has been ported to use std::simd instead, making use of std::simd's
• constructors
• copy_from and copy_to
• masks and where expressions
• operator functions
• overloads for several mathematical functions
• min/max

Definition at line 146 of file simd_type.h.

Member Typedef Documentation

abi_t

template<typename _value_type , std::size_t _vsize>

typedef std::experimental::simd_abi::fixed_size< _vsize > vspline::simd_type< _value_type, _vsize >::abi_t

Definition at line 89 of file std_simd_type.h.

base_t

template<typename _value_type , std::size_t _vsize>

typedef std::experimental::simd< value_type , abi_t > vspline::simd_type< _value_type, _vsize >::base_t

Definition at line 95 of file std_simd_type.h.

index_type [1/2]

template<typename _value_type , std::size_t _vsize>

typedef simd_type< int , vsize > vspline::simd_type< _value_type, _vsize >::index_type

Definition at line 185 of file simd_type.h.

index_type [2/2]

template<typename _value_type , std::size_t _vsize>

typedef std::experimental::simd< int , abi_t > vspline::simd_type< _value_type, _vsize >::index_type

Definition at line 96 of file std_simd_type.h.

IndexType [1/2]

template<typename _value_type , std::size_t _vsize>

typedef simd_type< int , vsize > vspline::simd_type< _value_type, _vsize >::IndexType

Definition at line 188 of file simd_type.h.

IndexType [2/2]

template<typename _value_type , std::size_t _vsize>

typedef index_type vspline::simd_type< _value_type, _vsize >::IndexType

Definition at line 107 of file std_simd_type.h.

mask_type

template<typename _value_type , std::size_t _vsize>

typedef simd_type< bool , vsize > vspline::simd_type< _value_type, _vsize >::mask_type

Definition at line 184 of file simd_type.h.

MaskType [1/2]

template<typename _value_type , std::size_t _vsize>

typedef simd_type< bool , vsize > vspline::simd_type< _value_type, _vsize >::MaskType

Definition at line 187 of file simd_type.h.

MaskType [2/2]

template<typename _value_type , std::size_t _vsize>

typedef mask_type vspline::simd_type< _value_type, _vsize >::MaskType

Definition at line 106 of file std_simd_type.h.

size_type [1/2]

template<typename _value_type , std::size_t _vsize>

typedef std::size_t vspline::simd_type< _value_type, _vsize >::size_type

Definition at line 160 of file simd_type.h.

size_type [2/2]

template<typename _value_type , std::size_t _vsize>

typedef std::size_t vspline::simd_type< _value_type, _vsize >::size_type

Definition at line 91 of file std_simd_type.h.

value_type [1/2]

template<typename _value_type , std::size_t _vsize>

typedef _value_type vspline::simd_type< _value_type, _vsize >::value_type

Definition at line 161 of file simd_type.h.

value_type [2/2]

template<typename _value_type , std::size_t _vsize>

typedef _value_type vspline::simd_type< _value_type, _vsize >::value_type

Definition at line 92 of file std_simd_type.h.

we_t

template<typename _value_type , std::size_t _vsize>

typedef std::experimental::where_expression< mask_type , base_t > vspline::simd_type< _value_type, _vsize >::we_t

Definition at line 670 of file std_simd_type.h.

Constructor & Destructor Documentation

simd_type() [1/10]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::simd_type ( const value_type &  ini )

inline

Definition at line 219 of file simd_type.h.

simd_type() [2/10]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::simd_type ( )

default

simd_type() [3/10]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::simd_type ( const simd_type< _value_type, _vsize > &  )

default

simd_type() [4/10]

template<typename _value_type , std::size_t _vsize>

template<typename U , typename V , std::size_t Wt, template< typename, std::size_t, typename, std::size_t > class W>

vspline::simd_type< _value_type, _vsize >::simd_type ( const W< U, vsize, V, Wt > &  ini )

inline

Definition at line 296 of file simd_type.h.

simd_type() [5/10]

template<typename _value_type , std::size_t _vsize>

template<typename index_type >

vspline::simd_type< _value_type, _vsize >::simd_type ( const value_type *const  p_src, const index_type &  indexes  )

inline

Definition at line 399 of file simd_type.h.

simd_type() [6/10]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::simd_type ( const value_type &  ini )

inline

Definition at line 127 of file std_simd_type.h.

simd_type() [7/10]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::simd_type ( const base_t &  ini )

inline

Definition at line 131 of file std_simd_type.h.

simd_type() [8/10]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::simd_type ( )

default

simd_type() [9/10]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::simd_type ( const simd_type< _value_type, _vsize > &  )

default

simd_type() [10/10]

template<typename _value_type , std::size_t _vsize>

template<typename index_type >

vspline::simd_type< _value_type, _vsize >::simd_type ( const value_type *const  p_src, const index_type &  indexes  )

inline

Definition at line 304 of file std_simd_type.h.

Member Function Documentation

COMPARE_FUNC() [1/12]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::COMPARE_FUNC	(	!	,
		operator!
	)

COMPARE_FUNC() [2/12]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::COMPARE_FUNC

(

)

COMPARE_FUNC() [3/12]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::COMPARE_FUNC	(	<=	,
		operator<=
	)

COMPARE_FUNC() [4/12]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::COMPARE_FUNC

(

operator

= =

)

COMPARE_FUNC() [5/12]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::COMPARE_FUNC

(

operator

)

COMPARE_FUNC() [6/12]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::COMPARE_FUNC	(	>=	,
		operator>=
	)

COMPARE_FUNC() [7/12]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::COMPARE_FUNC	(	operator!	,
		!
	)

COMPARE_FUNC() [8/12]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::COMPARE_FUNC

(

)

COMPARE_FUNC() [9/12]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::COMPARE_FUNC	(	operator<=	,
		<=
	)

COMPARE_FUNC() [10/12]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::COMPARE_FUNC

(

operator

= =

)

COMPARE_FUNC() [11/12]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::COMPARE_FUNC

(

operator

)

COMPARE_FUNC() [12/12]

template<typename _value_type , std::size_t _vsize>

vspline::simd_type< _value_type, _vsize >::COMPARE_FUNC	(	operator>=	,
		>=
	)

gather() [1/2]

template<typename _value_type , std::size_t _vsize>

template<typename index_type >

void vspline::simd_type< _value_type, _vsize >::gather ( const value_type *const  p_src, const index_type &  indexes  )

inline

Definition at line 389 of file simd_type.h.

gather() [2/2]

template<typename _value_type , std::size_t _vsize>

template<typename index_type >

void vspline::simd_type< _value_type, _vsize >::gather ( const value_type *const  p_src, const index_type &  indexes  )

inline

Definition at line 281 of file std_simd_type.h.

IndexesFrom() [1/2]

template<typename _value_type , std::size_t _vsize>

static const index_type vspline::simd_type< _value_type, _vsize >::IndexesFrom ( std::size_t  start, std::size_t  step = 1  )

inlinestatic

Definition at line 325 of file simd_type.h.

IndexesFrom() [2/2]

template<typename _value_type , std::size_t _vsize>

static const index_type vspline::simd_type< _value_type, _vsize >::IndexesFrom ( std::size_t  start, std::size_t  step = 1  )

inlinestatic

Definition at line 212 of file std_simd_type.h.

IndexesFromZero() [1/2]

template<typename _value_type , std::size_t _vsize>

static const index_type vspline::simd_type< _value_type, _vsize >::IndexesFromZero ( )

inlinestatic

Definition at line 312 of file simd_type.h.

IndexesFromZero() [2/2]

template<typename _value_type , std::size_t _vsize>

static const index_type vspline::simd_type< _value_type, _vsize >::IndexesFromZero ( )

inlinestatic

Definition at line 197 of file std_simd_type.h.

iota() [1/2]

template<typename _value_type , std::size_t _vsize>

static const simd_type vspline::simd_type< _value_type, _vsize >::iota ( )

inlinestatic

Definition at line 301 of file simd_type.h.

iota() [2/2]

template<typename _value_type , std::size_t _vsize>

static const simd_type vspline::simd_type< _value_type, _vsize >::iota ( )

inlinestatic

Definition at line 186 of file std_simd_type.h.

isfinite()

template<typename _value_type , std::size_t _vsize>

static mask_type vspline::simd_type< _value_type, _vsize >::isfinite ( const simd_type< _value_type, _vsize > &  rhs )

inlinestatic

Definition at line 847 of file simd_type.h.

isnan()

template<typename _value_type , std::size_t _vsize>

static mask_type vspline::simd_type< _value_type, _vsize >::isnan ( const simd_type< _value_type, _vsize > &  rhs )

inlinestatic

Definition at line 857 of file simd_type.h.

isnegative()

template<typename _value_type , std::size_t _vsize>

static mask_type vspline::simd_type< _value_type, _vsize >::isnegative ( const simd_type< _value_type, _vsize > &  rhs )

inlinestatic

Definition at line 842 of file simd_type.h.

load() [1/2]

template<typename _value_type , std::size_t _vsize>

void vspline::simd_type< _value_type, _vsize >::load ( const value_type *const  p_src )

inline

Definition at line 376 of file simd_type.h.

load() [2/2]

template<typename _value_type , std::size_t _vsize>

void vspline::simd_type< _value_type, _vsize >::load ( const value_type *const  p_src )

inline

Definition at line 263 of file std_simd_type.h.

One() [1/2]

template<typename _value_type , std::size_t _vsize>

static const simd_type vspline::simd_type< _value_type, _vsize >::One ( )

inlinestatic

Definition at line 343 of file simd_type.h.

One() [2/2]

template<typename _value_type , std::size_t _vsize>

static const simd_type vspline::simd_type< _value_type, _vsize >::One ( )

inlinestatic

Definition at line 230 of file std_simd_type.h.

operator()() [1/2]

template<typename _value_type , std::size_t _vsize>

masked_type vspline::simd_type< _value_type, _vsize >::operator() ( mask_type  mask )

inline

Definition at line 834 of file simd_type.h.

operator()() [2/2]

template<typename _value_type , std::size_t _vsize>

masked_type vspline::simd_type< _value_type, _vsize >::operator() ( mask_type  mask )

inline

Definition at line 725 of file std_simd_type.h.

operator=() [1/3]

template<typename _value_type , std::size_t _vsize>

simd_type & vspline::simd_type< _value_type, _vsize >::operator= ( const value_type &  rhs )

inline

Definition at line 209 of file simd_type.h.

operator=() [2/3]

template<typename _value_type , std::size_t _vsize>

simd_type & vspline::simd_type< _value_type, _vsize >::operator= ( const value_type &  rhs )

inline

Definition at line 118 of file std_simd_type.h.

operator=() [3/3]

template<typename _value_type , std::size_t _vsize>

template<typename U , typename V , std::size_t Wt, template< typename, std::size_t, typename, std::size_t > class W>

simd_type & vspline::simd_type< _value_type, _vsize >::operator= ( const W< U, vsize, V, Wt > &  rhs )

inline

Definition at line 282 of file simd_type.h.

operator[]() [1/3]

template<typename _value_type , std::size_t _vsize>

value_type & vspline::simd_type< _value_type, _vsize >::operator[] ( const size_type &  i )

inline

Definition at line 194 of file simd_type.h.

operator[]() [2/3]

template<typename _value_type , std::size_t _vsize>

const value_type & vspline::simd_type< _value_type, _vsize >::operator[] ( const size_type &  i ) const

inline

Definition at line 199 of file simd_type.h.

operator[]() [3/3]

template<typename _value_type , std::size_t _vsize>

simd_type vspline::simd_type< _value_type, _vsize >::operator[] ( index_type  indexes )

inline

Definition at line 457 of file simd_type.h.

rgather() [1/2]

template<typename _value_type , std::size_t _vsize>

void vspline::simd_type< _value_type, _vsize >::rgather ( const value_type *const  p_src, const int &  step  )

inline

Definition at line 428 of file simd_type.h.

rgather() [2/2]

template<typename _value_type , std::size_t _vsize>

void vspline::simd_type< _value_type, _vsize >::rgather ( const value_type *const  p_src, const std::size_t &  step  )

inline

Definition at line 350 of file std_simd_type.h.

rscatter() [1/2]

template<typename _value_type , std::size_t _vsize>

void vspline::simd_type< _value_type, _vsize >::rscatter ( value_type *  p_trg, const int &  step  ) const

inline

Definition at line 435 of file simd_type.h.

rscatter() [2/2]

template<typename _value_type , std::size_t _vsize>

void vspline::simd_type< _value_type, _vsize >::rscatter ( value_type *  p_trg, const std::size_t &  step  ) const

inline

Definition at line 357 of file std_simd_type.h.

scatter() [1/2]

template<typename _value_type , std::size_t _vsize>

template<typename index_type >

void vspline::simd_type< _value_type, _vsize >::scatter ( value_type *const  p_trg, const index_type &  indexes  ) const

inline

Definition at line 416 of file simd_type.h.

scatter() [2/2]

template<typename _value_type , std::size_t _vsize>

template<typename index_type >

void vspline::simd_type< _value_type, _vsize >::scatter ( value_type *const  p_trg, const index_type &  indexes  ) const

inline

Definition at line 323 of file std_simd_type.h.

shuffle()

template<typename _value_type , std::size_t _vsize>

template<typename index_type >

simd_type vspline::simd_type< _value_type, _vsize >::shuffle ( index_type  indexes )

inline

Definition at line 446 of file simd_type.h.

size() [1/2]

template<typename _value_type , std::size_t _vsize>

static constexpr size_type vspline::simd_type< _value_type, _vsize >::size ( )

inlinestaticconstexpr

Definition at line 167 of file simd_type.h.

size() [2/2]

template<typename _value_type , std::size_t _vsize>

static constexpr size_type vspline::simd_type< _value_type, _vsize >::size ( )

inlinestaticconstexpr

Definition at line 101 of file std_simd_type.h.

store() [1/2]

template<typename _value_type , std::size_t _vsize>

void vspline::simd_type< _value_type, _vsize >::store ( value_type *const  p_trg ) const

inline

Definition at line 407 of file simd_type.h.

store() [2/2]

template<typename _value_type , std::size_t _vsize>

void vspline::simd_type< _value_type, _vsize >::store ( value_type *const  p_trg ) const

inline

Definition at line 312 of file std_simd_type.h.

sum() [1/2]

template<typename _value_type , std::size_t _vsize>

value_type vspline::simd_type< _value_type, _vsize >::sum ( ) const

inline

Definition at line 894 of file simd_type.h.

sum() [2/2]

template<typename _value_type , std::size_t _vsize>

value_type vspline::simd_type< _value_type, _vsize >::sum ( ) const

inline

Definition at line 755 of file std_simd_type.h.

to_base() [1/2]

template<typename _value_type , std::size_t _vsize>

base_t & vspline::simd_type< _value_type, _vsize >::to_base ( )

inline

Definition at line 140 of file std_simd_type.h.

to_base() [2/2]

template<typename _value_type , std::size_t _vsize>

const base_t & vspline::simd_type< _value_type, _vsize >::to_base ( ) const

inline

Definition at line 145 of file std_simd_type.h.

Zero() [1/2]

template<typename _value_type , std::size_t _vsize>

static const simd_type vspline::simd_type< _value_type, _vsize >::Zero ( )

inlinestatic

Definition at line 338 of file simd_type.h.

Zero() [2/2]

template<typename _value_type , std::size_t _vsize>

static const simd_type vspline::simd_type< _value_type, _vsize >::Zero ( )

inlinestatic

Definition at line 225 of file std_simd_type.h.

Friends And Related Function Documentation

abs

template<typename _value_type , std::size_t _vsize>

simd_type abs ( simd_type< _value_type, _vsize >  arg )

friend

Definition at line 384 of file std_simd_type.h.

operator<< [1/2]

template<typename _value_type , std::size_t _vsize>

std::ostream & operator<< ( std::ostream &  osr, simd_type< _value_type, _vsize >  it  )

friend

Definition at line 350 of file simd_type.h.

operator<< [2/2]

template<typename _value_type , std::size_t _vsize>

std::ostream & operator<< ( std::ostream &  osr, simd_type< _value_type, _vsize >  it  )

friend

Definition at line 237 of file std_simd_type.h.

operator>> [1/2]

template<typename _value_type , std::size_t _vsize>

std::istream & operator>> ( std::istream &  isr, simd_type< _value_type, _vsize >  it  )

friend

Definition at line 360 of file simd_type.h.

operator>> [2/2]

template<typename _value_type , std::size_t _vsize>

std::istream & operator>> ( std::istream &  isr, simd_type< _value_type, _vsize >  it  )

friend

Definition at line 247 of file std_simd_type.h.

Member Data Documentation

ivsize

template<typename _value_type , std::size_t _vsize>

const int vspline::simd_type< _value_type, _vsize >::ivsize = _vsize

static

Definition at line 163 of file simd_type.h.

vsize

template<typename _value_type , std::size_t _vsize>

static const size_type vspline::simd_type< _value_type, _vsize >::vsize = _vsize

static

Definition at line 162 of file simd_type.h.

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

• simd_type.h
• std_simd_type.h