Intel® C++ Compiler 16.0 User and Reference Guide
Moves packed single-precision floating point values from unaligned memory location to a destination vector. The corresponding Intel® AVX instruction isVMOVUPS.
extern __m256 _mm256_loadu_ps(float const *a);  | 
*a  | 
      pointer to a memory location that can hold constant float32 values  | 
    
Loads packed single-precision floating point values (float32 values) from the 256-bit unaligned memory location pointed to by a, into a destination float32 vector, which is retured by the intrinsic.
A 256-bit vector with float32 values.