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From: "amonakov at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/111643] __attribute__((flatten)) with -O1 runs out of memory (killed cc1)
Date: Fri, 06 Oct 2023 16:45:15 +0000 [thread overview]
Message-ID: <bug-111643-4-JvV5OSZ2d8@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-111643-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111643
Alexander Monakov <amonakov at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |amonakov at gcc dot gnu.org
--- Comment #10 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
(In reply to Lukas Grätz from comment #9)
> I also wondered whether
>
> int bar_alias (void) { return bar_original(); }
>
> could be a portable alternative to attribute alias. Except that current GCC
> does not translate it that way.
That's because function addresses are significant and so
&bar_alias == &bar_original
must evaluate to false, but would be true for aliases.
In theory compilers could do better by introducing fall-through aliases:
https://gcc.gnu.org/wiki/cauldron2019talks?action=AttachFile&do=view&target=fallthrough-aliases.pdf
next prev parent reply other threads:[~2023-10-06 16:45 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-29 19:49 [Bug c/111643] New: " lukas.graetz@tu-darmstadt.de
2023-09-29 19:52 ` [Bug ipa/111643] " pinskia at gcc dot gnu.org
2023-09-29 20:39 ` glisse at gcc dot gnu.org
2023-09-30 6:19 ` lukas.graetz@tu-darmstadt.de
2023-10-01 0:53 ` lukas.graetz@tu-darmstadt.de
2023-10-01 1:13 ` pinskia at gcc dot gnu.org
2023-10-04 9:21 ` rguenth at gcc dot gnu.org
2023-10-05 8:26 ` cvs-commit at gcc dot gnu.org
2023-10-05 9:02 ` rguenth at gcc dot gnu.org
2023-10-06 16:34 ` lukas.graetz@tu-darmstadt.de
2023-10-06 16:45 ` amonakov at gcc dot gnu.org [this message]
2023-10-06 21:31 ` lukas.graetz@tu-darmstadt.de
2023-10-06 21:37 ` pinskia at gcc dot gnu.org
2023-10-06 21:40 ` pinskia at gcc dot gnu.org
2023-10-06 22:03 ` lukas.graetz@tu-darmstadt.de
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