avir::float8 Class Reference

SIMD packed 8-float type. More...

#include <avir_float8_avx.h>

Public Member Functions
	float8 (const __m256 s)
	float8 (const float s)
	float8 (const float8 &s)
float	hadd () const
	operator float () const
float8	operator* (const float8 &s) const
float8 &	operator*= (const float8 &s)
float8	operator+ (const float8 &s) const
float8 &	operator+= (const float8 &s)
float8	operator- (const float8 &s) const
float8 &	operator-= (const float8 &s)
float8	operator/ (const float8 &s) const
float8 &	operator/= (const float8 &s)
float8 &	operator= (const __m256 s)
float8 &	operator= (const float s)
float8 &	operator= (const float8 &s)
void	store (float *const p) const
void	storeu (float *const p) const
void	storeu (float *p, int lim) const

Static Public Member Functions
static void	addu (float *const p, const float8 &v)
static void	addu (float *const p, const float8 &v, const int lim)
static float8	load (const float *const p)
static float8	loadu (const float *const p)
static float8	loadu (const float *const p, const int lim)

Public Attributes
__m256	value
	Packed value of 8 floats.

Detailed Description

SIMD packed 8-float type.

This class implements a packed 8-float type that can be used to perform parallel computation using SIMD instructions on AVX-enabled processors. This class can be used as the "fptype" argument of the avir::fpclass_def or avir::fpclass_def_dil class.

Member Function Documentation

addu() [1/2]

static void avir::float8::addu ( float *const p, const float8 & 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::float8::addu ( float *const p, const float8 & 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::float8::hadd

(

)

const

Returns

Horizontal sum of elements.

load()

static float8 avir::float8::load ( const float *const p )

static

Parameters

p	Pointer to memory from where the value should be loaded, should be 32-byte aligned.

Returns

float8 value loaded from the specified memory location.

loadu() [1/2]

static float8 avir::float8::loadu ( const float *const p )

static

Parameters

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

Returns

float8 value loaded from the specified memory location.

loadu() [2/2]

static float8 avir::float8::loadu ( const float *const p, const 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

float8 value loaded from the specified memory location, with elements beyond "lim" set to 0.

store()

void avir::float8::store

(

float *const

p

)

const

Function stores *this value to the specified memory location.

Parameters

[out]

p

Output memory location, should be 32-byte aligned.

storeu() [1/2]

void avir::float8::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::float8::storeu	(	float *	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.