https://gcc.gnu.org/bugzilla/show_bug.cgi?id=23970
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- We are able to do the LIM at -O3 which enables loop unswitching. I wonder if there is a way to enable a limited form of loop unswitching for -O2 where one branch of the loop to unswitch is empty.
