http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53081
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-04-23 06:54:43 UTC --- (In reply to comment #4) > LLVM's version also tries to merge smaller memsets into a larger one. That is filed as PR 49872. And the original issue is related to PR 30442.