Intel® C++ Compiler 19.0 Developer Guide and Reference
Extracts a double precision floating point value.
double _mm256_cvtsd_f64(__m256d a); |
a |
float64 source vector |
This intrinsic extracts a double precision floating point value from the first vector element of an __m256d. It does so in the most efficient manner possible in the context used.
Result of the conversion operation.