Fexprs.

[George J. Carrette <GJC at MIT-MC>]

Would you believe that COMPLR optimizes
(declare (*fexpr foobar))
(defun foo (l) (eval (list 'foobar l)))

to produce the code:

(JSP T %PDLNC)
(JCALL 17 'FOOBAR)

Now thats what I call a going out of your way to
satisfy some strange tastes.

-gjc

p.s. I found this code in some very old macsyma source.