https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61621
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2014-06-27
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Well, you manually made the first case covering many cases fast by
grouping the rest of the cases.
Did you try using profile-feedback to give GCC a chance to see what
cases are executed more frequently?