Developer Guide and Reference

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_mm256_addsub_pd

Adds odd float64 elements and subtracts even float64 elements of vectors. The corresponding Intel® AVX instruction is
VADDSUBPD
.

Syntax

extern __m256d _mm256_addsub_pd(__m256d m1, __m256d m2);
Arguments
m1
float64 vector used for the operation
m2
float64 vector also used for the operation
Description
Performs a SIMD addition of the odd packed double-precision floating-point elements (float64 elements) from the first source vector
m1
to the odd float64 elements of the second source vector
m2
.
Simultaneously, the intrinsic performs subtraction of the even double-precision floating-point elements of the second source vector
m2
from the even float64 elements of the first source vector
m1
.
Returns
Result of the operation is stored in the result vector, which is returned by the intrinsic.