Developer Guide and Reference

Contents

_mm256_castpd_si256

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.

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. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804