On Friday, 24 April 2015 at 11:53:56 UTC, Marc Schütz wrote:
Most of the time is taken up by the array's allocation. The
optimizers of both DMD and LDC evidently doesn't optimize it
away when you use `ref`, even though it could in theory.
Remove the `enum` and just use a normal global variable, and
you will get more or less identical times for all three loops.
LDC even turns then into empty functions (didn't check for DMD).
I've tried it, and the loops indeed show similar results. What is
it about `enum` that slows it down?
