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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/109741] alignas(64) in libstdc++-v3/src/c++11/shared_ptr.cc
Date: Thu, 04 May 2023 17:40:32 +0000 [thread overview]
Message-ID: <bug-109741-4-QmUvRMfayS@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-109741-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109741
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Janez Zemva from comment #1)
> alternatively, the line could be changed into:
>
> struct alignas(void*) M : __gnu_cxx::__mutex { };
>
> since this was probably meant with the magic number 64.
The magic number 64 is the cache line size to make sure there are less sharing.
next prev parent reply other threads:[~2023-05-04 17:40 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-04 17:30 [Bug libstdc++/109741] New: " janezz55 at gmail dot com
2023-05-04 17:38 ` [Bug libstdc++/109741] " janezz55 at gmail dot com
2023-05-04 17:39 ` pinskia at gcc dot gnu.org
2023-05-04 17:40 ` pinskia at gcc dot gnu.org [this message]
2023-05-04 17:42 ` pinskia at gcc dot gnu.org
2023-05-04 17:58 ` janezz55 at gmail dot com
2023-05-04 18:02 ` pinskia at gcc dot gnu.org
2023-05-04 18:05 ` pinskia at gcc dot gnu.org
2023-05-04 18:10 ` janezz55 at gmail dot com
2023-05-04 18:14 ` jakub at gcc dot gnu.org
2023-05-04 18:17 ` redi at gcc dot gnu.org
2023-05-04 18:19 ` redi at gcc dot gnu.org
2023-05-04 18:31 ` jakub at gcc dot gnu.org
2023-05-04 19:30 ` janezz55 at gmail dot com
2023-05-04 20:18 ` redi at gcc dot gnu.org
2023-05-16 17:31 ` cvs-commit at gcc dot gnu.org
2023-05-16 17:33 ` redi at gcc dot gnu.org
2023-05-16 17:33 ` redi at gcc dot gnu.org
2023-06-29 23:01 ` cvs-commit at gcc dot gnu.org
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