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From: "remi.coulom at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug middle-end/105469] "execution reached an unreachable program
 point" with -flto
Date: Wed, 04 May 2022 07:15:10 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105469

--- Comment #2 from R=C3=A9mi Coulom <remi.coulom at gmail dot com> ---
(In reply to Richard Biener from comment #1)
> I can reproduce what you observe with -O3 -fwhole-program
> -fsanitize=3Dunreachable
> (without the sanitize it gets into an infinite loop).  -fno-ipa-cp-clone
> avoids
> the issue (whatever it is exactly).
>=20
> Can you attach un-preprocessed source as well?  You seem to be not using =
any
> non-standard header files.

Thanks for checking my code.

The code is available on github:
https://github.com/Remi-Coulom/joedb

Necessary files to replicate the bug can be found there:
https://github.com/Remi-Coulom/joedb/tree/master/doc/source/tutorial/gcc_bug

repro.cpp and all_includes.h should be enough.

I produced repro.cpp by preprocessing bug.cpp and pruning a lot of code. I
suppose repro.cpp should be enough for your purpose. If you ever wish to
compile bug.cpp you'll have to compile joedb first by running "./generate.s=
h"
in doc/source/tutorial.=