[Bug c/46853] gcc fails to warn about uninitialized variable

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46853

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-12-08 20:35:19 UTC ---
This is a dup of xxxxx, we apply conditional constant and copy propagation
which will optimize the uninitialized use away before we have a chance to warn.