Comment 6 for bug 2016417

Hm, interesting. This is what I see:

CMU Common Lisp 2022-05-02 21:52:41 (21D Unicode), running on skybluecherry
With core: /usr/lib/cmucl/lib/lisp-sse2.core
Dumped on: Mon, 2022-05-02 23:52:42+02:00 on arojas
See <http://www.cmucl.org/> for support information.
Loaded subsystems:
    Unicode 1.29 with Unicode version 6.2.0
    Python 1.1, target Intel x86/sse2
    CLOS based on Gerd's PCL 2010/03/19 15:19:03
* (block nil
    (return)
    (+ 1 2 3))

; In: BLOCK NIL

; (+ 1 2 3)
; Note: Deleting unreachable code.
;
NIL

So clearly the machinery is there *somewhere*.