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_mm256_hsub_epi16/32

Horizontally subtracts adjacent signed packed 16/32-bit integer data elements of two vectors. The corresponding Intel® AVX2 instruction is
VPHSUBW
or
VPHSUBD
.

Syntax

extern __m256i _mm256_hsub_epi16(__m256i s1, __m256i s2);
extern __m256i _mm256_hsub_epi32(__m256i s1, __m256i s2);
Arguments
s1
integer source vector used for the operation
s2
integer source vector used for the operation
Description
Performs horizontal subtraction on each adjacent pair of 16- or 32-bit signed integers by subtracting the most significant word from the least significant word of each pair source vectors
s2
and
s2
, and packs the signed 16- or 32-bit results to the destination vector.
Returns
Result of the horizontal subtraction operation.