[Bug middle-end/116508] [15 Regression] `popcount(short) == 1` or char no longer expands to using `(arg ^ (arg - 1)) > arg - 1` trick after r15-2946-gfcc3af99498804

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116508

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
part of the problem here is the use of OPTAB_DIRECT when it should use
OPTAB_WIDEN instead.