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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: On elisp running native
Date: Mon, 09 Mar 2020 21:18:00 +0200
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To: Andrea Corallo <akrl@sdf.org>
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> From: Andrea Corallo <akrl@sdf.org>
> Date: Mon, 09 Mar 2020 18:52:17 +0000
> Cc: emacs-devel@gnu.org
> 
> I've never measured the max memory consumption of the while bootstrap
> but I usually count like 2GB for each compilation unit when optimizing.

That might mean 32-bit build of Emacs will fail to compile Lisp files.
Did you try building a 32-bit Emacs with native compilation of Lisp?