data representation and operations on a vector of 4 double. More...

#include <power_vsx4.h>

Public Member Functions
	svec ()
	Default constructor. More...

	svec (__vector double a, __vector double b)
	For internal use only. Construct svec<4,double> with two __vector double values. More...

	svec (double a, double b, double c, double d)
	Constructor. More...

	svec (double a)
	Constructor. More...

double &	operator[] (int index)
	operator [] to set or get the vector element specified by index. More...

const double	operator[] (int index) const

svec< 4,bool >	operator== (svec< 4, double > a)
	Element-wise compare equal, return a bool vector, e.g., "a == b" *. More...

svec< 4,bool >	operator!= (svec< 4, double > a)
	Element-wise compare not equal, return a bool vector. E.g. "a != b" *. More...

svec< 4,bool >	operator< (svec< 4, double > a)
	Element-wise compare less than, return a bool vector. E.g. "a < b" *. More...

svec< 4,bool >	operator<= (svec< 4, double > a)
	Element-wise compare less equal, return a bool vector. E.g. "a <= b" *. More...

svec< 4,bool >	operator> (svec< 4, double > a)
	Element-wise compare greater than, return a bool vector. E.g. "a > b" *. More...

svec< 4,bool >	operator>= (svec< 4, double > a)
	Element-wise compare greater equal, return a bool vector. E.g. "a >= b" *. More...

svec< 4, double >	operator- ()
	get the neg value, return a VTYPE vector. E.g. "-a" More...

double	reduce_add ()
	Get the sum of all the element values in the vector. return a double scalar. More...

double	reduce_max ()
	Get the max value of all the element values in the vector. return a double scalar. More...

double	reduce_min ()
	Get the min value of all the element values in the vector. return a double scalar. More...

svec< 4, double >	operator+ (svec< 4, double > a)
	Add two vectors. More...

svec< 4, double >	operator+ (double s)
	Add a vector and a scalar. More...

svec< 4, double >	operator- (svec< 4, double > a)
	Sub two vectors. More...

svec< 4, double >	operator- (double s)
	Sub a vector and a scalar. More...

svec< 4, double >	operator* (svec< 4, double > a)
	Multiply two vectors. More...

svec< 4, double >	operator* (double s)
	Multiply a vector and a scalar. More...

svec< 4, double >	operator/ (svec< 4, double > a)
	Divide a vector by a vector. More...

svec< 4, double >	operator/ (double s)
	Divide a vector by a scalar. More...

void	store (svec< 4, double > *p)
	Store the vector to address p. More...

void	masked_store (svec< 4, double > *p, svec< 4, bool > mask)
	Store the vector element's value to pointer p if the mask element is true. More...

void	scatter (svec< 4, void * > ptrs, svec< 4, bool > mask)
	Scatter the vector's elements to the locations pointed by the vector ptrs if the mask element is true. More...

void	scatter_base_offsets (double *b, uint32_t scale, svec< 4, int32_t > offsets, svec< 4, bool > mask)
	Scatter the vector's elements to the addresses ((char)b + scale offsets) if the mask element is true. More...

void	scatter_base_offsets (double *b, uint32_t scale, svec< 4, int64_t > offsets, svec< 4, bool > mask)
	Scatter the vector's elements to the addresses ((char)b + scale offsets) if the mask element is true. More...

void	scatter_stride (double *b, int32_t off, int32_t stride)
	Scatter the vector's elements to the addresses (b+off, b++off+stride, b+off+2stride, b+off+3step). More...

void	scatter_stride (double *b, int64_t off, int64_t stride)
	Scatter the vector's elements to the addresses (b+off, b++off+stride, b+off+2stride, b+off+3step). More...

svec< 4, double >	broadcast (int32_t index)
	Return a new vector by setting all the elements of the new vector with this vector's index element. More...

svec< 4, double >	rotate (int32_t index)
	Return a new vector by rotate this vector's elements. e.g. newVec[i] = thisVec[i+index]. More...

svec< 4, double >	shuffle (svec< 4, int32_t > index)
	Return a new vector by shuffle this vector's elements with index vector e.g. newVec[i] = thisVec[index[i]]. More...

svec< 4, double >	abs ()
	Return a new vector of the vector's abs value. More...

svec< 4, double >	round ()
	return the round VTYPE vector. More...

svec< 4, double >	floor ()
	return the floor VTYPE vector. More...

svec< 4, double >	ceil ()
	return the ceil VTYPE vector. More...

svec< 4, double >	sqrt ()
	return the sqrt VTYPE vector. More...

svec< 4, double >	rcp ()
	return the reverse VTYPE vector. (1.0/thisVec) More...

svec< 4, double >	rsqrt ()
	return the reverse sqrt VTYPE vector. ( 1.0/sqrt(thisVec) ) More...

svec< 4, double >	exp ()
	return the exp VTYPE vector. More...

svec< 4, double >	log ()
	return the log VTYPE vector. More...

svec< 4, double >	pow (svec< 4, double > a)
	return the pow VTYPE vector. More...

Static Public Member Functions
static svec< 4, double >	load (svec< 4, double > *p)
	load the vector from the pointer p More...

static svec< 4, double >	masked_load (svec< 4, double > *p, svec< 4, bool > mask)
	Return a new vector by only loading the value from the pointer p if the mask element is true. More...

static svec< 4, double >	load_const (const double *p)
	Construct a vector by loading a scalar value from pointer p, and splat it to all the elements in the vector. More...

static svec< 4, double >	load_and_splat (double *p)
	Construct a vector by loading a scalar value from pointer p, and splat it to all the elements in the vector. More...

static svec< 4, double >	gather (svec< 4, void * > ptrs, svec< 4, bool > mask)
	Gather the elements pointed by the vector ptrs if the mask element is true, and return a vector. More...

static svec< 4, double >	gather_base_offsets (double *b, uint32_t scale, svec< 4, int32_t > offsets, svec< 4, bool > mask)
	Gather the elements pointed by calculating the addresses ((char)b + scale offsets) if the mask element is true, and return a vector. More...

static svec< 4, double >	gather_base_offsets (double *b, uint32_t scale, svec< 4, int64_t > offsets, svec< 4, bool > mask)
	Gather the elements pointed by calculating the addresses ((char)b + scale offsets) if the mask element is true, and return a vector. More...

static svec< 4, double >	gather_stride (double *b, int32_t off, int32_t stride)
	Gather the elements pointed by (b+off, b++off+stride, b+off+2stride, b+off+3step). More...

static svec< 4, double >	gather_stride (double *b, int64_t off, int64_t stride)
	Gather the elements pointed by (b+off, b++off+stride, b+off+2stride, b+off+3step). More...

Public Attributes
__vector double	v [2]

Friends
std::ostream &	operator<< (std::ostream &out, const svec< 4, double > &v)

Detailed Description

template<>
struct vsx::svec< 4, double >

data representation and operations on a vector of 4 double.

Constructor & Destructor Documentation

vsx::svec< 4, double >::svec ( )

Default constructor.

Returns: a vector of 4 undefined double.

vsx::svec< 4, double >::svec	(	__vector double	a,
		__vector double	b
	)

For internal use only. Construct svec<4,double> with two __vector double values.

Returns: a double vector, whose value is from a and b.

vsx::svec< 4, double >::svec	(	double	a,
		double	b,
		double	c,
		double	d
	)

Constructor.

Returns: a vector of 4 double: {a,b,c,d}.

vsx::svec< 4, double >::svec ( double a )

Constructor.

Parameters

a a double

Returns: a vector of 4 doubles: {a,a,a,a}.

Member Function Documentation

svec< 4, double > vsx::svec< 4, double >::abs ( )

Return a new vector of the vector's abs value.

svec< 4, double > vsx::svec< 4, double >::broadcast ( int32_t index )

Return a new vector by setting all the elements of the new vector with this vector's index element.

svec< 4, double > vsx::svec< 4, double >::ceil ( )

return the ceil VTYPE vector.

svec< 4, double > vsx::svec< 4, double >::exp ( )

return the exp VTYPE vector.

svec< 4, double > vsx::svec< 4, double >::floor ( )

return the floor VTYPE vector.

svec< 4, double > vsx::svec< 4, double >::gather	(	svec< 4, void * >	ptrs,
		svec< 4, bool >	mask
	)

static

Gather the elements pointed by the vector ptrs if the mask element is true, and return a vector.

svec< 4, double > vsx::svec< 4, double >::gather_base_offsets	(	double *	b,
		uint32_t	scale,
		svec< 4, int32_t >	offsets,
		svec< 4, bool >	mask
	)

static

Gather the elements pointed by calculating the addresses ((char*)b + scale * offsets) if the mask element is true, and return a vector.

svec< 4, double > vsx::svec< 4, double >::gather_base_offsets	(	double *	b,
		uint32_t	scale,
		svec< 4, int64_t >	offsets,
		svec< 4, bool >	mask
	)

static

Gather the elements pointed by calculating the addresses ((char*)b + scale * offsets) if the mask element is true, and return a vector.

svec< 4, double > vsx::svec< 4, double >::gather_stride	(	double *	b,
		int32_t	off,
		int32_t	stride
	)

static

Gather the elements pointed by (b+off, b++off+stride, b+off+2*stride, b+off+3*step).

svec< 4, double > vsx::svec< 4, double >::gather_stride	(	double *	b,
		int64_t	off,
		int64_t	stride
	)

static

Gather the elements pointed by (b+off, b++off+stride, b+off+2*stride, b+off+3*step).

svec< 4, double > vsx::svec< 4, double >::load ( svec< 4, double > * p )

static

load the vector from the pointer p

Parameters

[in] p load address

Note: p does not have to be aligned

Returns: no return value. This vector is updated with value loaded from p.

svec< 4, double > vsx::svec< 4, double >::load_and_splat ( double * p )

static

Construct a vector by loading a scalar value from pointer p, and splat it to all the elements in the vector.

svec< 4, double > vsx::svec< 4, double >::load_const ( const double * p )

static

Construct a vector by loading a scalar value from pointer p, and splat it to all the elements in the vector.

svec< 4, double > vsx::svec< 4, double >::log ( )

return the log VTYPE vector.

svec< 4, double > vsx::svec< 4, double >::masked_load	(	svec< 4, double > *	p,
		svec< 4, bool >	mask
	)

static

Return a new vector by only loading the value from the pointer p if the mask element is true.

void vsx::svec< 4, double >::masked_store	(	svec< 4, double > *	p,
		svec< 4, bool >	mask
	)

Store the vector element's value to pointer p if the mask element is true.

svec< 4,bool > vsx::svec< 4, double >::operator!= ( svec< 4, double > a )

Element-wise compare not equal, return a bool vector. E.g. "a != b" *.

Parameters

[in] a a vector *

Returns
the result of compare not equal as a boolean vector.

svec< 4, double > vsx::svec< 4, double >::operator* ( double s )

Multiply a vector and a scalar.

svec< 4, double > vsx::svec< 4, double >::operator* ( svec< 4, double > a )

Multiply two vectors.

svec< 4, double > vsx::svec< 4, double >::operator+ ( svec< 4, double > a )

Add two vectors.

svec< 4, double > vsx::svec< 4, double >::operator+ ( double s )

Add a vector and a scalar.

svec< 4, double > vsx::svec< 4, double >::operator- ( double s )

Sub a vector and a scalar.

svec< 4, double > vsx::svec< 4, double >::operator- ( )

get the neg value, return a VTYPE vector. E.g. "-a"

svec< 4, double > vsx::svec< 4, double >::operator- ( svec< 4, double > a )

Sub two vectors.

svec< 4, double > vsx::svec< 4, double >::operator/ ( svec< 4, double > a )

Divide a vector by a vector.

svec< 4, double > vsx::svec< 4, double >::operator/ ( double s )

Divide a vector by a scalar.

svec< 4,bool > vsx::svec< 4, double >::operator< ( svec< 4, double > a )

Element-wise compare less than, return a bool vector. E.g. "a < b" *.

Parameters

[in] a a vector *

Returns
the result of compare less than as a boolean vector.

svec< 4,bool > vsx::svec< 4, double >::operator<= ( svec< 4, double > a )

Element-wise compare less equal, return a bool vector. E.g. "a <= b" *.

Parameters

[in] a a vector *

Returns
the result of compare less equal as a boolean vector.

svec< 4,bool > vsx::svec< 4, double >::operator== ( svec< 4, double > a )

Element-wise compare equal, return a bool vector, e.g., "a == b" *.

Parameters

[in] a a vector *

Returns
the result of compare equal as a boolean vector.

svec< 4,bool > vsx::svec< 4, double >::operator> ( svec< 4, double > a )

Element-wise compare greater than, return a bool vector. E.g. "a > b" *.

Parameters

[in] a a vector *

Returns
the result of compare greater than as a boolean vector.

svec< 4,bool > vsx::svec< 4, double >::operator>= ( svec< 4, double > a )

Element-wise compare greater equal, return a bool vector. E.g. "a >= b" *.

Parameters

[in] a a vector *

Returns
the result of compare greater equal as a boolean vector.

const double vsx::svec< 4, double >::operator[] ( int index ) const

double & vsx::svec< 4, double >::operator[] ( int index )

operator [] to set or get the vector element specified by index.

Parameters

index specifies the index of the element in the vector.

svec< 4, double > vsx::svec< 4, double >::pow ( svec< 4, double > a )

return the pow VTYPE vector.

svec< 4, double > vsx::svec< 4, double >::rcp ( )

return the reverse VTYPE vector. (1.0/thisVec)

double vsx::svec< 4, double >::reduce_add ( )

Get the sum of all the element values in the vector. return a double scalar.

double vsx::svec< 4, double >::reduce_max ( )

Get the max value of all the element values in the vector. return a double scalar.

double vsx::svec< 4, double >::reduce_min ( )

Get the min value of all the element values in the vector. return a double scalar.

svec< 4, double > vsx::svec< 4, double >::rotate ( int32_t index )

Return a new vector by rotate this vector's elements. e.g. newVec[i] = thisVec[i+index].

svec< 4, double > vsx::svec< 4, double >::round ( )

return the round VTYPE vector.

svec< 4, double > vsx::svec< 4, double >::rsqrt ( )

return the reverse sqrt VTYPE vector. ( 1.0/sqrt(thisVec) )

void vsx::svec< 4, double >::scatter	(	svec< 4, void * >	ptrs,
		svec< 4, bool >	mask
	)

Scatter the vector's elements to the locations pointed by the vector ptrs if the mask element is true.

void vsx::svec< 4, double >::scatter_base_offsets	(	double *	b,
		uint32_t	scale,
		svec< 4, int64_t >	offsets,
		svec< 4, bool >	mask
	)

Scatter the vector's elements to the addresses ((char*)b + scale * offsets) if the mask element is true.

void vsx::svec< 4, double >::scatter_base_offsets	(	double *	b,
		uint32_t	scale,
		svec< 4, int32_t >	offsets,
		svec< 4, bool >	mask
	)

Scatter the vector's elements to the addresses ((char*)b + scale * offsets) if the mask element is true.

void vsx::svec< 4, double >::scatter_stride	(	double *	b,
		int64_t	off,
		int64_t	stride
	)

Scatter the vector's elements to the addresses (b+off, b++off+stride, b+off+2*stride, b+off+3*step).

void vsx::svec< 4, double >::scatter_stride	(	double *	b,
		int32_t	off,
		int32_t	stride
	)

Scatter the vector's elements to the addresses (b+off, b++off+stride, b+off+2*stride, b+off+3*step).

svec< 4, double > vsx::svec< 4, double >::shuffle ( svec< 4, int32_t > index )

Return a new vector by shuffle this vector's elements with index vector e.g. newVec[i] = thisVec[index[i]].

svec< 4, double > vsx::svec< 4, double >::sqrt ( )

return the sqrt VTYPE vector.

void vsx::svec< 4, double >::store ( svec< 4, double > * p )

Store the vector to address p.

Parameters

[in] p store address

Note: p does not have to be aligned

Friends And Related Function Documentation

std::ostream& operator<<	(	std::ostream &	out,
		const svec< 4, double > &	v
	)

friend

Member Data Documentation

__vector double vsx::svec< 4, double >::v[2]

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

/cygdrive/c/workspace/ibm-summer/generic_simd/include/power_vsx4.h

Public Member Functions

Static Public Member Functions

Public Attributes

Friends

Detailed Description

template<> struct vsx::svec< 4, double >

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation

template<>
struct vsx::svec< 4, double >