[Bug fortran/52158] Regression on character function with gfortran 4.7

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52158

--- Comment #4 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-05-13 10:52:37 UTC ---
Author: burnus
Date: Sun May 13 10:52:32 2012
New Revision: 187436

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=187436
Log:
2012-05-13  Alessandro Fanfarillo  <fanfarillo.gcc@gmail.com>
            Tobias Burnus  <burnus@net-b.de>

        PR fortran/52158
        PR fortran/45170
        PR fortran/49430
        * resolve.c (resolve_fl_derived0): Deferred character length 
        procedure components are supported.
        * trans-expr.c (gfc_conv_procedure_call): Handle TBP with 
        deferred-length results.
        (gfc_string_to_single_character): Add a new check to prevent
        NULL read.
        (gfc_conv_procedure_call): Remove unuseful checks on 
        symbol's attributes. Add new checks to prevent NULL read on
        string length. 

2012-05-13  Alessandro Fanfarillo  <fanfarillo.gcc@gmail.com>

        PR fortran/45170
        * gfortran.dg/deferred_type_param_3.f90: New.
        * gfortran.dg/deferred_type_proc_pointer_1.f90: New.
        * gfortran.dg/deferred_type_proc_pointer_2.f90: New.


Added:
    trunk/gcc/testsuite/gfortran.dg/deferred_type_param_3.f90
    trunk/gcc/testsuite/gfortran.dg/deferred_type_proc_pointer_1.f90
    trunk/gcc/testsuite/gfortran.dg/deferred_type_proc_pointer_2.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/resolve.c
    trunk/gcc/fortran/trans-expr.c
    trunk/gcc/testsuite/ChangeLog