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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/109990] [12/13/14 Regression] Bogus -Wuse-after-free
 warning after realloc
Date: Fri, 26 May 2023 14:25:22 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109990

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
```

                  char *new_pool =3D (char *) realloc (string_space, new_si=
ze);
                  if (new_pool =3D=3D ((void *)0))
                    goto out;
                  if (__builtin_expect (string_space !=3D new_pool, 0))
                    {
                      size_t i;
                      for (i =3D 0; i < nmap; i++)
                        {
                          map[i].alias +=3D new_pool - string_space;
                          map[i].value +=3D new_pool - string_space;
                        }
                    }
                  string_space =3D new_pool;
```

Hmmm=