Developer Guide and Reference

Contents

_mm256_unpackhi_epi8/16/32/64

Unpacks and interleaves the high-order data elements of the source vector with the high-order data elements in the destination vector. The corresponding Intel® AVX2 instruction is
VPUNPCKHBW
,
VPUNPCKHWD
,
VPUNPCKHDQ
, or
VPUNPCKHQDQ
.

Syntax

extern __m256i _mm256_unpackhi_epi8(__m256i a, __m256i b);
extern __m256i _mm256_unpackhi_epi16(__m256i a, __m256i b);
extern __m256i _mm256_unpackhi_epi32(__m256i a, __m256i b);
extern __m256i _mm256_unpackhi_epi64(__m256i a, __m256i b);
Arguments
a
integer source operand used for the operation
b
integer source operand used for the operation
Description
Unpacks and interleaves the high-order signed or unsigned data elements (bytes, words, doublewords, and quadwords) of the source vector and the high-order signed or unsigned data elements (bytes, words, doublewords, and quadwords) in the destination vector. The low-order data elements are ignored.
Returns
Result of the interleave operation