[Bug fortran/77903] [F08] gfortran 6.1.0/7.0.0 accept invalid code with conflicting module/submodule interfaces

[pault at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77903

--- Comment #12 from Paul Thomas <pault at gcc dot gnu.org> ---
Author: pault
Date: Fri Dec  9 22:25:26 2016
New Revision: 243507

URL: https://gcc.gnu.org/viewcvs?rev=243507&root=gcc&view=rev
Log:
2016-12-09  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/77903
        * decl.c (get_proc_name): Use the symbol tlink field instead of
        the typespec interface field.
        (gfc_match_function_decl, gfc_match_submod_proc): Ditto.
        * gfortran.h : Since the symbol tlink field is no longer used
        by the frontend for change management, change the comment to
        reflect its current uses.
        * parse.c (get_modproc_result): Same as decl.c changes.
        * resolve.c (resolve_fl_procedure): Ditto.

2016-12-09  Paul Thomas  <pault@gcc.gnu.org>

        PR fortran/77903
        * gfortran.dg/submodule_20.f08: New test.

Added:
    trunk/gcc/testsuite/gfortran.dg/submodule_20.f08
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/decl.c
    trunk/gcc/fortran/gfortran.h
    trunk/gcc/fortran/parse.c
    trunk/gcc/fortran/resolve.c
    trunk/gcc/testsuite/ChangeLog