[Bug fortran/95502] ICE in gfc_check_do_variable, at fortran/parse.c:4446

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95502

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Harald Anlauf <anlauf@gcc.gnu.org>:

https://gcc.gnu.org/g:72e3d92178b44a3722519ec68e72e307443bda70

commit r12-1540-g72e3d92178b44a3722519ec68e72e307443bda70
Author: Harald Anlauf <anlauf@gmx.de>
Date:   Wed Jun 16 21:54:16 2021 +0200

    Fortran - ICE in gfc_check_do_variable, at fortran/parse.c:4446

    Avoid NULL pointer dereferences during error recovery.

    gcc/fortran/ChangeLog:

            PR fortran/95501
            PR fortran/95502
            * expr.c (gfc_check_pointer_assign): Avoid NULL pointer
            dereference.
            * match.c (gfc_match_pointer_assignment): Likewise.
            * parse.c (gfc_check_do_variable): Avoid comparison with NULL
            symtree.

    gcc/testsuite/ChangeLog:

            PR fortran/95501
            PR fortran/95502
            * gfortran.dg/pr95502.f90: New test.