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From: "kargl at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/111853] f951: Segmentation fault at gfc_expression_rank
Date: Wed, 18 Oct 2023 05:49:06 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111853

kargl at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kargl at gcc dot gnu.org
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
           Priority|P3                          |P4
   Last reconfirmed|                            |2023-10-18

--- Comment #1 from kargl at gcc dot gnu.org ---
NULL pointer.

diff --git a/gcc/fortran/resolve.cc b/gcc/fortran/resolve.cc
index 861f69ac20f..51ff3c7ed21 100644
--- a/gcc/fortran/resolve.cc
+++ b/gcc/fortran/resolve.cc
@@ -5659,7 +5659,7 @@ gfc_expression_rank (gfc_expr *e)
       if (ref->type !=3D REF_ARRAY)
        continue;

-      if (ref->u.ar.type =3D=3D AR_FULL)
+      if (ref->u.ar.type =3D=3D AR_FULL && ref->u.ar.as)
        {
          rank =3D ref->u.ar.as->rank;
          break;=