[Bug fortran/71730] [5/6/7 Regression] ICE when character length specification uses an undefined variable

["kargl at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71730

--- Comment #5 from kargl at gcc dot gnu.org ---
Author: kargl
Date: Thu Sep 29 00:18:44 2016
New Revision: 240608

URL: https://gcc.gnu.org/viewcvs?rev=240608&root=gcc&view=rev
Log:
2016-09-28  Steven G. Kargl  <kargl@gcc.gnu.org>

        backport from trunk
        PR fortran/71730
        * gfortran.dg/pr71730.f90: New test.
        * gfortran.dg/bounds_check_strlen_2.f90: Fix invalid code.
        * gfortran.dg/array_constructor_27.f03: Update dg-error message.
        * gfortran.dg/array_constructor_26.f03: Ditto.

        PR fortran/77612
        * gfortran.dg/pr77612.f90: New test.

2016-09-28  Steven G. Kargl  <kargl@gcc.gnu.org>

        backport from trunk
        PR fortran/71730
        * decl.c (char_len_param_value): Check return value of
        gfc_reduce_init_expr().

        PR fortran/77612
        * decl.c (char_len_param_value): Check parent namespace for 
        seen_implicit_none.

Added:
    branches/gcc-5-branch/gcc/testsuite/gfortran.dg/pr71730.f90
    branches/gcc-5-branch/gcc/testsuite/gfortran.dg/pr77612.f90
Modified:
    branches/gcc-5-branch/gcc/fortran/ChangeLog
    branches/gcc-5-branch/gcc/fortran/decl.c
    branches/gcc-5-branch/gcc/testsuite/ChangeLog
    branches/gcc-5-branch/gcc/testsuite/gfortran.dg/array_constructor_26.f03
    branches/gcc-5-branch/gcc/testsuite/gfortran.dg/array_constructor_27.f03
    branches/gcc-5-branch/gcc/testsuite/gfortran.dg/bounds_check_strlen_2.f90