[Bug c++/105780] New: GCC does not vectorise filling array of integers with a value on sse2

[denis.yaroshevskij at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105780

            Bug ID: 105780
           Summary: GCC does not vectorise filling array of integers with
                    a value on sse2
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: denis.yaroshevskij at gmail dot com
  Target Milestone: ---

The following code snippet I believe should be auto-vectorised even on sse2

```
void fill(int* f, int* l, int v) {
    while (f != l) {
        *f++ = v;
    }
}
```

Clang does it: https://godbolt.org/z/3bEeE8E8n