Intel® C++ Compiler Classic Developer Guide and Reference

ID 767249
Date 12/16/2022
Public

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<span class='option'>_mm256_castpd_si256</span>

Typecasts double-precision floating point values to integer values. No corresponding Intel® AVX instruction.

Syntax

extern __m256i _mm256_castpd_si256(__m256d a);

Arguments

a

float64 source vector

Description

Performs a typecast operation from double-precision floating point values (float64 values) to integer values. This intrinsic does not introduce extra moves to the generated code. Source operand bits are passed unchanged to the result.

Returns

A vector with 256-bit integer values.