Constructors and Initialization

The following table shows how to create and initialize F32vec objects with the Fvec classes.

Constructors and Initialization for Fvec Classes

Example

Intrinsic

Returns

Constructor Declaration

F64vec2 A;
F32vec4 B;
F32vec1 C;

N/A

N/A

__m128 Object Initialization

F64vec2 A(__m128d mm);
F32vec4 B(__m128 mm);
F32vec1 C(__m128 mm);

N/A

N/A

Double Initialization

/* Initializes two doubles. */
F64vec2 A(double d0, double d1);
F64vec2 A = F64vec2(double d0, double d1);

_mm_set_pd

A0 := d0;
A1 := d1;

F64vec2 A(double d0);
/* Initializes both return values
with the same double precision value */.

_mm_set1_pd

A0 := d0;
A1 := d0;

Float Initialization

F32vec4 A(float f3, float f2,
float f1, float f0);

F32vec4 A = F32vec4(float f3, float f2,
float f1, float f0);

_mm_set_ps

A0 := f0;
A1 := f1;
A2 := f2;
A3 := f3;

F32vec4 A(float f0);
/* Initializes all return values
with the same floating point value. */

_mm_set1_ps

A0 := f0;
A1 := f0;
A2 := f0;
A3 := f0;

F32vec4 A(double d0);
/* Initialize all return values with
the same double-precision value. */

_mm_set1_ps(d)

A0 := d0;
A1 := d0;
A2 := d0;
A3 := d0;

F32vec1 A(double d0);
/* Initializes the lowest value of A
with d0 and the other values with 0.*/

_mm_set_ss(d)

A0 := d0;
A1 := 0;
A2 := 0;
A3 := 0;

F32vec1 B(float f0);
/* Initializes the lowest value of B
with f0 and the other values with 0.*/

_mm_set_ss

B0 := f0;
B1 := 0;
B2 := 0;
B3 := 0;

F32vec1 B(int I);
/* Initializes the lowest value of B
with f0, other values are undefined.*/

_mm_cvtsi32_ss

B0 := f0;
B1 := {}
B2 := {}
B3 := {}

For more complete information about compiler optimizations, see our Optimization Notice.