http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49519
--- Comment #18 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-07-06 10:49:24 UTC --- Hm, the argument setup for the tailcall clobbers the incoming stack argument. And without TER we do not overlap argument setup with the loads from the incoming stack argument.
