[Bug fortran/103138] [12 Regression] ICE in gfc_simplify_cshift, at fortran/simplify.c:2139 since r12-4967-gbcf3728abe848888

["cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103138

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Harald Anlauf
<anlauf@gcc.gnu.org>:

https://gcc.gnu.org/g:9ccc4f79f1a6dd08437e10db729694a744abb10a

commit r11-9235-g9ccc4f79f1a6dd08437e10db729694a744abb10a
Author: Harald Anlauf <anlauf@gmx.de>
Date:   Wed Nov 10 20:30:27 2021 +0100

    Fortran: avoid NULL pointer dereferences

    CLASS(), PARAMETER is not yet properly implemented in gfortran.  Using it
    in declarations could lead to subsequent NULL pointer dereferences during
    checking or simplification of expressions involving those CLASS variables.

    gcc/fortran/ChangeLog:

            PR fortran/103137
            PR fortran/103138
            * check.c (gfc_check_shape): Avoid NULL pointer dereference on
            missing ref.
            * simplify.c (gfc_simplify_cshift): Avoid NULL pointer dereference
            when shape not set.
            (gfc_simplify_transpose): Likewise.

    (cherry picked from commit abc2f01914d6c4703de26c402fb579a9a2d0dba4)