[Bug tree-optimization/111331] [11/12/13/14 Regression] Wrong code at -O1 on x86_64-linux-gnu since

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111331

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Reduced testcase:
```
int a;
int b;

int main() {
  int d = b+30;
  {
        int t;
        if (d < 29)
          t =  29;
        else
          t = (d > 28) ? 28 : d;
    a = t;
  }
  volatile int t = a;
  if (a != 28)
    __builtin_trap();
}
```