Developer Guide and Reference



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


extern __m256d _mm256_castps_pd(__m256 a);
float32 source vector
Performs a typecast operation from single-precision floating point values (float32 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.
A vector with double-precision floating point values.

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Notice revision #20110804