Thank you for reply + couple of keywords) Im trying to find purpose for "kumite" thing thus bothering people around.. that the spirit, i guess
gotta have some fun with llvm intermediates x)

Of course !!

I was not running for perf...
Use of a rand instead of a mersenne twister, etc.. and even the use of std:experimental::simd etc...

Note on your note: any modern compiler will unroll the loop, and... turn i++ into ++i.. 😀

clever, but super slow. pure overkill