https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108397
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Also:
```
int f(int a, int b)
{
int c = a == b;
c = -c;
return c <= -1;
}
```
At `-O2 -fwrapv` is not optimized at the gimple level but is at the RTL level
even.
