Doesn't require any special flags, just hitting optimizer limits can do it with MSVC.
replyhttps://www.reddit.com/r/cpp/comments/1i36ahd/is_this_an_msv...
Ahh... Good old funrollloops...
replyhttps://www.shlomifish.org/humour/by-others/funroll-loops/Ge...
Right up there with fun, safe math optimizations
reply