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From: "dmalcolm at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug analyzer/107289] - -Wanayzer-null-dereference false positive
 with  f = *b
Date: Mon, 17 Oct 2022 17:00:20 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107289

David Malcolm <dmalcolm at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2022-10-17
     Ever confirmed|0                           |1

--- Comment #2 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
I believe that the analyzer is considering the case where "d" is (somehow)
called from outside of "main", and thus not making the assumption that *b =
=3D=3D
&a; seeing the compare with NULL, it considers the case that b could be NUL=
L.

It's not yet clear to me that this case of d being called from outside "mai=
n"
is valid, or if it's always the case that d can only ever be called from ma=
in.=