[Bug sanitizer/114494] false-positive with -O2 -Wstringop-overflow=2 -fsanitize=address

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114494

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 99673.

```
  _14 = &MEM[(struct ip_header *)saved_buffer_5(D) + 4B].ip_ver_len;
...
  _3 = _14 + _2;
...
  MEM[(char * {ref-all})_3] = _10;
```

Without -fsanitize=address, there is no `&MEM[(struct ip_header
*)saved_buffer_5(D) + 4B].ip_ver_len` but rather just `eth_payload_data_6 =
saved_buffer_5(D) + 4`.

See the duplicate bug for more analysis of the issue.

*** This bug has been marked as a duplicate of bug 99673 ***