[Bug c/51371] New: compilation should produce warning

[gideon425.gb5 at mailnull dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51371

             Bug #: 51371
           Summary: compilation should produce warning
    Classification: Unclassified
           Product: gcc
           Version: 4.6.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: gideon425.gb5@mailnull.com


unsigned long l;
unsigned long l2;

void x()
{
  if (l >= 0) l2 = 1;
}


compiling the above code with -Wlogical-op should give a warning
as l can never be negative