[Bug tree-optimization/111456] [14 Regression] Dead Code Elimination Regression since r14-3719-gb34f3736356

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111456

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Reduced testcase for the missed optimization before and after the patch:
```
_Bool f(int a)
{
        _Bool t = a == 0;
        short t1 = a;
        _Bool t2 = t1 >= 0;
        return t & t2;
}
```

This really should just reduce to `return a == 0;`