https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121679
--- Comment #5 from Richard Earnshaw <rearnsha at gcc dot gnu.org> --- (In reply to Richard Biener from comment #4) > DSE/DCE sometimes need "iteration", removing of trivially dead stmts in DSE > helped to some extent, but yes, some of this is expected. Is it worth iterating while 'something changed', or might that never terminate, or be too expensive?