[Bug fortran/33523] New: Incorrect warning messages about uninitialized variables

["dir at lanl dot gov" <gcc-bugzilla at gcc dot gnu dot org>]

These incorrect messages have been appearing lately. The variables are always
and only accessed in the save branch of the switch statements - so they will
never and can never be used uninitialized.


[dranta:~/tests/gfortran-D] dir% gfortran -c -O2 -Wuninitialized
module_files.f90
module_files.f90: In function 'my_sio_file_read_common':
module_files.f90:36: warning: 'scratch_r8.dim[1].stride' may be used
uninitialized in this function
module_files.f90:36: warning: 'scratch_r8.offset' may be used uninitialized in
this function
module_files.f90:35: warning: 'scratch_i4.dim[1].stride' may be used
uninitialized in this function
module_files.f90:35: warning: 'scratch_i4.offset' may be used uninitialized in
this function
[dranta:~/tests/gfortran-D] dir% gfortran --v
Using built-in specs.
Target: powerpc-apple-darwin8.10.0
Configured with: ../gcc/configure --disable-bootstrap --enable-multilib
--prefix=/usr/local/gfortran --enable-languages=c,fortran
Thread model: posix
gcc version 4.3.0 20070921 (experimental) (GCC)


-- 
           Summary: Incorrect warning messages about uninitialized variables
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dir at lanl dot gov
  GCC host triplet: powerpc-apple-darwin8.10.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33523