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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/109495] Stack is used (unexpectedly) for copying on-heap objects (no problem in clang)
Date: Thu, 13 Apr 2023 13:00:24 +0000	[thread overview]
Message-ID: <bug-109495-4-Zadc8r73CD@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-109495-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109495

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jason at gcc dot gnu.org

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
The private keyword makes it non-POD and so the tail padding can be reused and
we need to make sure we copy only the bits except for type padding.
I guess we need some archeology why the exact conditions are in there.

  parent reply	other threads:[~2023-04-13 13:00 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-13 11:08 [Bug c++/109495] New: Stack is used (unexpectedly) for copying on-heap objects (while clang doesn't) gcc-bug-reports at xhtml dot guru
2023-04-13 11:10 ` [Bug c++/109495] Stack is used (unexpectedly) for copying on-heap objects (no problem in clang) gcc-bug-reports at xhtml dot guru
2023-04-13 11:49 ` [Bug middle-end/109495] " rguenth at gcc dot gnu.org
2023-04-13 12:16 ` jakub at gcc dot gnu.org
2023-04-13 12:45 ` rguenth at gcc dot gnu.org
2023-04-13 12:59 ` rguenth at gcc dot gnu.org
2023-04-13 13:00 ` jakub at gcc dot gnu.org [this message]
2023-04-14  8:12 ` rguenth at gcc dot gnu.org

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