RFC: obsolete __builtin_apply?

[Andrew Haley]

Steven Bosscher writes:
 > On 3/16/07, Andrew Pinski <pinskia@gmail.com> wrote:
 > > On 3/16/07, Steve Ellcey <sje@cup.hp.com> wrote:
 > > > My thinking is that if libobjc was changed then we could put in a
 > > > depreciated message on these builtins for 4.3 and maybe remove them for
 > > > 4.4.
 > >
 > > libobjc has not changed yet.  There was a patch a while back to change
 > > libobjc to use libffi but I need to go back to it and review it (as it
 > > was before I became a libobjc maintainer).
 > 
 > Do you mean this patch:
 > http://gcc.gnu.org/ml/gcc-patches/2004-12/msg00841.html

Are there any performance issues to consider?  Is using libffi
slower/faster than the builtins?

Andrew.