Re: Q: What is default architecture for code produced by native compiler?

[Eli Zaretskii]

> From: Arthur Miller <arthur.miller@live.com>
> Date: Wed, 25 Aug 2021 03:13:49 +0200
> Cc: emacs-devel@gnu.org
> 
> >> If it is generic, do we have option to pass in arch and cpu flags?
> >
> > No we don't, even if we could expose it using
> > 'gcc_jit_context_add_command_line_option' for non obsolete versions of
> > GCC.
> 
> Allright, is there any interest to expose this? :-)
> 
> We could have a defcustom in comp.el, either some boolean like:
> "native-comp-prefer-host-cpu"

What's wrong with using native-comp-driver-options?

I'm also curious why you want to mess with that.  Do you use the
equivalent GCC switches when compiling Emacs?  If so, why?

> To be honest, I have no idea if there is much if anything to win in speed in 
> elisp context,
> between generic and skylake

My guess would be nothing.  And if you want to try that, I'd first
suggest trying that when building some program with GCC.