Developer Guide and Reference

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_mm256_castsi256_pd

Typecasts 256-bit integer values to double-precision floating point values. No corresponding Intel® AVX instruction.

Syntax

extern __m256d _mm256_castsi256_pd(__m256i a);
Arguments
a
256-bit integer vector
Description
Performs a typecast operation from 256-bit integer values to double-precision floating point values (float64 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 double-precision floating point values.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors.