[Bug tree-optimization/126487] Another missing smin/smax detection

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126487

Drea Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Another missing smin        |Another missing smin/smax
                   |detection                   |detection

--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
The max case is:
```
unsigned
smax_n1 (unsigned int a)
{
  unsigned t = a;
  unsigned t1 = -1u;
  unsigned tt = __INT_MAX__;
  return a <= tt ? t : -1u;
}
```