Re: MPS: Please check if scratch/igc builds with native compilation

[Andrea Corallo <acorallo@gnu.org>]

Andrea Corallo <acorallo@gnu.org> writes:

> Helmut Eller <eller.helmut@gmail.com> writes:
>
>> Is there some way to disable optimizations for libgccjit so that the
>> native compiler isn't quite so slow?
>
> The following should do the job, maybe is also an interesting test to
> do...
>
> modified   lisp/emacs-lisp/comp.el
> @@ -54,7 +54,7 @@ comp
>    "Emacs Lisp native compiler."
>    :group 'lisp)
>
> -(defcustom native-comp-speed 2
> +(defcustom native-comp-speed 0
>    "Optimization level for native compilation, a number between -1 and 3.
>   -1 functions are kept in bytecode form and no native compilation is performed
>      (but *.eln files are still produced, and include the compiled code in

Okay a datapoint, I did managed to bootstrap two times a native compiled
Emacs with only this patch installed with no errors.

But it might be related to the fact that the excuted code is simpler and
less stressful to the GC, AFAIR ssa renamining (the nativecomp pass
where I saw the crash initially) is heavy at consing other than
computing.

  Andrea