http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48816
Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2011.04.29 10:07:43 CC| |jakub at gcc dot gnu.org Ever Confirmed|0 |1 --- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-04-29 10:07:43 UTC --- It is "used" in i += 3. I suppose we should ignore value-updates in use analysis.