avir::float4 Class Reference

SIMD packed 4-float type. More...

#include <avir_float4_sse.h>

Public Member Functions
	float4 (const __m128 s)
	float4 (const double s)
	float4 (const float s)
	float4 (const float4 &s)
	float4 (const int s)
float	hadd () const
	Returns horizontal sum of elements.
	operator float () const
float4	operator* (const float4 &s) const
float4 &	operator*= (const float4 &s)
float4	operator+ (const float4 &s) const
float4 &	operator+= (const float4 &s)
float4	operator- (const float4 &s) const
float4 &	operator-= (const float4 &s)
float4	operator/ (const float4 &s) const
float4 &	operator/= (const float4 &s)
float4 &	operator= (const __m128 s)
float4 &	operator= (const float s)
float4 &	operator= (const float4 &s)
void	store (float *const p) const
	Stores this value to the specified memory location.
void	storeu (float *const p) const
	Stores this value to the specified memory location.
void	storeu (float *const p, int lim) const
	Stores "lim" lower elements of this value to the specified memory location.

Static Public Member Functions
static void	addu (float *const p, const float4 &v)
	Performs in-place addition of a value located in memory, and the specified value.
static void	addu (float *const p, const float4 &v, const int lim)
	Performs in-place addition of a value located in memory, and the specified value. Limited to the specfied number of elements.
static float4	load (const float *const p)
	Returns float4 value loaded from the specified memory location.
static float4	loadu (const float *const p)
	Returns float4 value loaded from the specified memory location.
static float4	loadu (const float *const p, int lim)
	Returns float4 value loaded from the specified memory location, with elements beyond "lim" set to 0.

Public Attributes
__m128	value
	Packed value of 4 floats.

Detailed Description

SIMD packed 4-float type.

This class implements a packed 4-float type that can be used to perform parallel computation using SIMD instructions on SSE-enabled processors. This class can be used as the "fptype" argument of the avir::fpclass_def class.

Member Function Documentation

addu() [1/2]

static void avir::float4::addu ( float *const p, const float4 & v )

static

Performs in-place addition of a value located in memory, and the specified value.

Parameters

p	Pointer to value where addition happens. May be unaligned.
v	Value to add.

addu() [2/2]

static void avir::float4::addu ( float *const p, const float4 & v, const int lim )

static

Performs in-place addition of a value located in memory, and the specified value. Limited to the specfied number of elements.

Parameters

p	Pointer to value where addition happens. May be unaligned.
v	Value to add.
lim	The element number limit, greater than 0.

load()

static float4 avir::float4::load ( const float *const p )

static

Returns float4 value loaded from the specified memory location.

Parameters

p	Pointer to memory from where the value should be loaded, should be 16-byte aligned.

Returns

Loaded value.

loadu() [1/2]

static float4 avir::float4::loadu ( const float *const p )

static

Returns float4 value loaded from the specified memory location.

Parameters

p	Pointer to memory from where the value should be loaded, may have any alignment.

Returns

Loaded value.

loadu() [2/2]

static float4 avir::float4::loadu ( const float *const p, int lim )

static

Returns float4 value loaded from the specified memory location, with elements beyond "lim" set to 0.

Parameters

p	Pointer to memory from where the value should be loaded, may have any alignment.
lim	The maximum number of elements to load, greater than 0.

Returns

Loaded value.

store()

void avir::float4::store

(

float *const

p

)

const

Stores this value to the specified memory location.

Parameters

[out]

p

Output memory location, should be 16-byte aligned.

storeu() [1/2]

void avir::float4::storeu

(

float *const

p

)

const

Stores this value to the specified memory location.

Parameters

[out]

p

Output memory location, may have any alignment.

storeu() [2/2]

void avir::float4::storeu	(	float *const	p,
		int	lim ) const

Stores "lim" lower elements of this value to the specified memory location.

Parameters

[out]	p	Output memory location, may have any alignment.
	lim	The number of lower elements to store, greater than 0.