[Bug c/45468] New: gcc does not warn about missing `-O' flag when specifying `-Wuninitialized'

[jellegeerts at gmail dot com]

When compiling a file with the `-Wuninitialized' flag, but without `-O', one
does not get a warning from GCC 4.5.1 (and `-Wuninitialized' has no effect).

GCC should output something like `cc1.exe: warning: -Wuninitialized is not
supported without -O', like GCC 3.4.5 did.


-- 
           Summary: gcc does not warn about missing `-O' flag when
                    specifying `-Wuninitialized'
           Product: gcc
           Version: 4.5.1
            Status: UNCONFIRMED
          Severity: critical
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jellegeerts at gmail dot com
  GCC host triplet: mingw32


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45468