[Bug c/42312] New: config/mep/mep.c:2856: (error) Uninitialized variable: frame_size

[dcb314 at hotmail dot com]

I just ran the most excellent tool cppcheck, from sourceforge,
over the gcc source code. It said

config/mep/mep.c:2856: (error) Uninitialized variable: frame_size

I have checked the source code and I agree with cppcheck.

The source code is

  int frame_size;
  int really_need_stack_frame = frame_size;

which is fine as far as it goes, no problem in copying rubbish
from one place in the stack to another, but the next use of local
variable really_need_stack_frame is

        really_need_stack_frame |= mep_assign_save_slots (reg_save_size);

which could lead to problems. Suggest initialise local variable
really_need_stack_frame to something else, perhaps zero would suffice.


-- 
           Summary: config/mep/mep.c:2856: (error) Uninitialized variable:
                    frame_size
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dcb314 at hotmail dot com
  GCC host triplet: x86_64-suse-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42312