Intel® C++ Compiler Classic Developer Guide and Reference
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Visible to Intel only — GUID: GUID-D1331F9D-5AA9-46C7-BCCD-A6BD7465DD3C
<span class='option'> _mm256_hadd_pd</span>
Adds horizontal pairs of float64 elements of two vectors. The corresponding Intel® AVX instruction is VHADDPD.
extern __m256d _mm256_hadd_pd(__m256d m1, __m256d m2); |
m1 |
float64 vector used for the operation |
m2 |
float64 vector also used for the operation |
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.
Result of the addition operation.