[Bug tree-optimization/102486] __builtin_popcount(y&-y) is not optimized to y!=0

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102486

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Rather:
```
int f2(unsigned y)
{
  return (y&-y) != 0;
}
```