[Bug tree-optimization/108841] New: sometimes a < b && c < b is not optimized to MAX<a, c> < b

["pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108841

            Bug ID: 108841
           Summary: sometimes a < b && c < b is not optimized to MAX<a, c>
                    < b
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: enhancement
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---

Take:
```
int f1(int a0, int a1, int b, int c0, int c1)
{
        int a = a0 < a1 ? a1 : a0;
        if (a < b) {
          int c = c0 < c1 ? c1 : c0;
          if (c < b)
            return 0;
        }
        return 1;
}
int f2(int a0, int a1, int b, int c0, int c1)
{
        int a = a0 < a1 ? a1 : a0;
        int c = c0 < c1 ? c1 : c0;
        if (a < b) {
          if (c < b)
            return 0;
        }
        return 1;
}
```
These 2 functions should produce the same code, the only difference is the
calculation of c is not condtional.