https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90693
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |15.0
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #16 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
`__builtin_popcount (x) <= 1` and `__builtin_popcount (x) > 1` are now handled.
```
x && x == (x & -x)
x && (x & x-1) == 0
```
is PR 94787 .
So closing as fixed; note I don't know when I will get around to PR 94787
because I am putting on a pause at fixing popcount issues for now.