avir::float4 Class Reference

SIMD packed 4-float type. More...

#include <avir_float4_sse.h>

Public Member Functions
	float4 (const __m128 s)
	float4 (const float s)
	float4 (const float4 &s)
float	hadd () const
	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
void	storeu (float *const p) const
void	storeu (float *const p, int lim) const

Static Public Member Functions
static void	addu (float *const p, const float4 &v)
static void	addu (float *const p, const float4 &v, const int lim)
static float4	load (const float *const p)
static float4	loadu (const float *const p)
static float4	loadu (const float *const p, int lim)

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

Function 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

Function 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, >0.

hadd()

float avir::float4::hadd

(

)

const

Returns

Horizontal sum of elements.

load()

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

static

Parameters

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

Returns

float4 value loaded from the specified memory location.

loadu() [1/2]

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

static

Parameters

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

Returns

float4 value loaded from the specified memory location.

loadu() [2/2]

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

static

Parameters

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

Returns

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

store()

void avir::float4::store

(

float *const

p

)

const

Function 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

Function 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

Function 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, >0.