Intel® C++ Compiler Classic Developer Guide and Reference

ID 767249
Date 12/16/2022
Public

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<span class='option'>_mm256_hadd_ps</span>

Adds horizontal pairs of float32 elements of two vectors. The corresponding Intel® AVX instruction is VHADDPS.

Syntax

extern __m256 _mm256_hadd_ps(__m256 m1, __m256 m2);

Arguments

m1

float32 vector used for the operation

m2

float32 vector also used for the operation

Description

Performs a SIMD addition of adjacent (horizontal) pairs of single-precision floating-point elements (float32 elements) in the first source vector m1 with adjacent pairs of float32 elements in the second source vector m2.

Returns

Returns the result of the addition operation.