http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43421
--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-03-10 12:34:04 UTC --- The code emitting the warning was removed without replacement. The code isn't dubious but it shows that GCC 4.4 has bugs (but as we warn we also tell you at the same time we won't optimize).
