Developer Guide and Reference

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_mm256_hadd_ps

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.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804