_mm256_hadd

Adds horizontal pairs of float64 elements of two vectors. The corresponding Intel® AVX instruction is VHADDPD.

Syntax

extern __m256d _mm256_hadd_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 adjacent (horizontal) pairs of double-precision floating-point elements (float64 elements) ins the first source vector, m1, with adjacent pairs of float64 elements in the second source vector, m2.

Returns

Result of the addition operation.