_mm256_castpd128_pd256
Classification
AVX_ALL, Cast, CPUID Test: AVX
Header File
immintrin.h
Synopsis
 _mm256_castpd128_pd256(__m128d a);
Description
Cast vector of type __m128d to type __m256d; the upper 128 bits of the result are undefined. This intrinsic is only used for compilation and does not generate any instructions, thus it has zero latency.