[Bug tree-optimization/108860] New (since gcc 12) false positive null-dereference in vector.resize

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108860

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2023-02-21

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Somehow GCC thinks __len can be 0 here, and so __new_start can be null:

              const size_type __len =
                _M_check_len(__n, "vector::_M_default_append");
              pointer __new_start(this->_M_allocate(__len));