On Tue, Dec 07, 2021 at 08:02:20AM -0800, Matt Armstrong wrote:

[...]

> Indeed, PhDs have been completed in this area.
> 
> Beyond hot spot, JIT in dynamic languages can use other techniques, such
> as specializing the JITed code to the concrete types the code sees in
> practice, etc.  I'm not an expert so I'll stop there.

[...]

> I don't see any technical barriers preventing Emacs and/or Guile from
> taking the same kinds of approach, but it would be a large effort,
> requiring deep expertise.  It might make more sense to do it in Guile,
> in the hopes of making Guile Emacs an attractive proposition.

Guile is either nearly or already there [1]. To understand the ref one
has to know that Andy Wingo, the current Guile maintainer works on
Javascript implementations for browsers, for which such techniques are
essential.

Cheers

[1] https://wingolog.org/archives/2020/06/03/a-baseline-compiler-for-guile

-- 
t