Intel® C++ Compiler Classic Developer Guide and Reference

ID 767249
Date 12/16/2022
Public

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<span class='option'>_mm256_mullo_epi16/32 </span>

Multiplies signed packed 16/32-bit integer data elements of two vectors and stores low bits. The corresponding Intel® AVX2 instruction is VPMULLW or VPMULLD.

Syntax

extern __m256i _mm256_mullo_epi16(__m256i s1, __m256i s2);

extern __m256i _mm256_mullo_epi32(__m256i s1, __m256i s2);

Arguments

s1

integer source vector used for the operation

s2

integer source vector used for the operation

Description

Performs a SIMD signed multiply of the packed signed 16- or 32-bit integers in source vectors s1 and s2 and stores the low 16- or 32-bits of each intermediate 32- or 64-bit result in the destination vector.

Returns

Result of the multiplication operation.