[PATCH, committed] PR fortran/103609 - [11/12 Regression] ICE in gfc_sym_get_dummy_args, at fortran/symbol.c:5243

[Harald Anlauf]

Dear all,

the attached patch fixes a NULL pointer dereference for a missed
declaration of a dummy argument or a conflict of a procedure with
another decl.

Committed as obvious after regtesting on x86_64-pc-linux-gnu:

commit r12-5847-gb77968a70537429b4f548f90c369d26e6b6943cc
Author: Harald Anlauf <anlauf@gmx.de>
Date:   Wed Dec 8 21:14:19 2021 +0100

    Fortran: avoid NULL pointer dereference on missing or bad dummy arguments

    gcc/fortran/ChangeLog:

            PR fortran/103609
            * symbol.c (gfc_sym_get_dummy_args): Catch NULL pointer
            dereference.

    gcc/testsuite/ChangeLog:

            PR fortran/103609
            * gfortran.dg/pr103609.f90: New test.

Thanks,
Harald
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