http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55894
--- Comment #2 from Marc Glisse <glisse at gcc dot gnu.org> 2013-01-07 13:48:17 UTC --- (In reply to comment #1) > Usually target built-in folders are missing (targetm.fold_builtin). That's one possibility. But I was wondering (and almost filed it in rtl-optimization) why the folding was not already happening in RTL. The builtins are expanded to standard vec_duplicate, eq, xor.
