http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48721
--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-11-30 13:21:59 UTC --- Created attachment 25952 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25952 gcc47-pr48721.patch Perhaps we should just consider tail calls as full barriers like asm volatile etc., scheduling some insn after them doesn't make much sense, that is just a fancy way of removing them and I'd hope that insn removal is the job of DCE and similar optimizations, but not of the scheduler.