[Bug fortran/51913] New: bug when submitting a class pointer to a subroutine

["nagl46 at web dot de" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51913

             Bug #: 51913
           Summary: bug when submitting a class pointer to a subroutine
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: nagl46@web.de


Created attachment 26390
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26390
buggy program

When I declare a pointer in main routine:
>> CLASS(sparseMatrix_t), pointer :: sparseMatrix

Then I pass this pointer to a subroutine
>> call test(sparseMatrix)

I get a compiler error message:
>> Error: Actual argument to 'matrix' at (1) must have the same declared type

Please find attached a small program that does not work and fails compiling
with this error. I find this fault in gfortran-4.6.1 and gfortran-4.7.0
20111210.
I compiled with 'gfortran main.f90'.