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Date: Sun, 10 Sep 2023 23:25:06 +0200
From: Jan Hubicka <hubicka@ucw.cz>
To: Thomas Schwinge <thomas@codesourcery.com>
Cc: James Hu <jameshu2022@gmail.com>, gcc@gcc.gnu.org
Subject: Re: Incremental LTO Project
Message-ID: <ZP40MmQqZTrstbts@kam.mff.cuni.cz>
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> Hi!
> 
> On 2023-09-07T19:00:49-0400, James Hu via Gcc <gcc@gcc.gnu.org> wrote:
> > I noticed that adding incremental LTO was a GSoC project that was not
> > claimed this cycle (
> > https://summerofcode.withgoogle.com/programs/2023/organizations/gnu-compiler-collection-gcc).
> > I was curious about working on this project, but wanted to check on the
> > state of the project.
> 
> Thanks for your interest!  (... as a potential contributor, I presume?)
> 
> > Has it already been completed? Is someone actively
> > working on it?
> 
> Yesterday, when browsing the schedule of the GNU Tools Cauldron 2023,
> <https://gcc.gnu.org/wiki/cauldron2023>, I noticed there's going to be a
> presentation on "Incremental LTO in GCC" (Michal Jire¹),
> <https://gcc.gnu.org/wiki/cauldron2023#cauldron2023talks.incremental_lto_in_gcc>.

Indeed Michal Jires (who is my student at Charles University) did a lot
of work on incremental LTO.  He is finishing his second bachelor in
physics and then we plan to start working towards contributing it to the
mainline.
His imlementation is described in thesis
https://dspace.cuni.cz/bitstream/handle/20.500.11956/183051/130360194.pdf?sequence=1

This is just a start of the project, further improvemnts will be welcome

Honza
> 
> > If not, what would be the appropriate method to contact the
> > mentor (Jan Hubièka)?
> 
> He's reading this list, but I've now also put Honza in CC.
> 
> 
> Grüße
>  Thomas
> -----------------
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