# _mm256_mul_epi32

Multiplies two vectors with packed doubleword signed integer values. The corresponding Intel® AVX2 instruction is VPMULDQ.

## Syntax

extern __m256i _mm256_mul_epi32(__m256i s1, __m256i s2);

## Arguments

s1 | integer source vector used for the operation
s2 | integer source vector used for the operation

## Description

Multiplies the value of packed signed doubleword integer in source vector s1 by the value in source vector s2 and stores the result in the destination vector.

When a quadword result is too large to be represented in 64 bits (overflow), the result is wrapped around and the low 64 bits are written to the destination element (that is, the carry is ignored).

## Returns

Result of the multiplication operation.

Parent topic: Intrinsics for Arithmetic Operations