[Bug fortran/106121] ICE in gfc_simplify_extends_type_of, at fortran/simplify.cc:3109

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106121

--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Harald Anlauf
<anl...@gcc.gnu.org>:

https://gcc.gnu.org/g:19f6e8ddfc447ac3b6198ab4b0176323e75a65cc

commit r11-10106-g19f6e8ddfc447ac3b6198ab4b0176323e75a65cc
Author: Harald Anlauf <anl...@gmx.de>
Date:   Tue Jun 28 22:29:28 2022 +0200

    Fortran: improve error recovery for EXTENDS_TYPE_OF() [PR106121]

    gcc/fortran/ChangeLog:

            PR fortran/106121
            * simplify.c (gfc_simplify_extends_type_of): Do not attempt to
            simplify when one of the arguments is a CLASS variable that was
            not properly declared.

    gcc/testsuite/ChangeLog:

            PR fortran/106121
            * gfortran.dg/extends_type_of_4.f90: New test.

    Co-authored-by: Steven G. Kargl <ka...@gcc.gnu.org>
    (cherry picked from commit b8f284d3673004dffae714b56ed663467c2a52a7)