_mm256_alignr_epi8

Aligns elements of two source vectors depending on bits in a mask. The corresponding Intel® AVX2 instruction is VPALIGNR.

Syntax

extern __m256i _mm256_alignr_epi8(__m256i s1, __m256i s2, const int mask);

Arguments

s1

integer source vector used for the operation

s2

integer source vector used for the operation

mask

8-bit immediate bits used for the operation

Description

Performs an alignment operation by concatenating two blocks of 16-byte data from the first and second source vectors, s1 and s2, into an intermediate 32-byte composite, shifting the composite at byte granularity to the right by a constant immediate specified by mask, and extracting the right-aligned 16-byte result into the destination vector. The immediate value is considered unsigned.



Returns

Result of the alignment operation.

Para obtener información más completa sobre las optimizaciones del compilador, consulte nuestro Aviso de optimización.