Intel® C++ Compiler Classic Developer Guide and Reference

ID 767249
Date 7/13/2023
Public
Document Table of Contents

_mm256_cvtepi16_epi32/64

Performs packed move with sign-extend on 16-bit signed integers to 32/64-bit integers. The corresponding Intel® AVX2 instruction is VPMOVSXWD orVPMOVSXWQ.

Syntax

extern __m256i _mm256_cvtepi16_epi32(__m128i s1);

extern __m256i _mm256_cvtepi16_epi64(__m128i s1);

Arguments

s1

128-bit integer source vector used for the operation

Description

Performs a packed move with sign-extend operation to convert 16-bit [word] integers in the low bytes of the source vector, s1, to 32-bit [doubleword] or 64-bit [quadword] integers and stored as packed signed doubleword/quadword integers in the destination vector.

Returns

Result of the sign-extend operation.