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From: "roger at nextmovesoftware dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/114552] [13/14 Regression] wrong code at -O1 and above on x86_64-linux-gnu since r13-990
Date: Tue, 02 Apr 2024 14:49:01 +0000 [thread overview]
Message-ID: <bug-114552-4-CLhul0tGIE@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-114552-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114552
Roger Sayle <roger at nextmovesoftware dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |roger at nextmovesoftware dot com
--- Comment #6 from Roger Sayle <roger at nextmovesoftware dot com> ---
Many thanks Jakub, and my apologies for the breakage/inconvenience. It looks
like sizeof(k) is 10 bytes, and sizeof(k.b) is 6 bytes, and somehow this code
is getting the constructor for "k" and not for just "k.b". This is, of course,
fine for memcpy as it can move the just the pieces it wants. I completely
agree that the safe fix is to check that the sizes match; I don't think I ever
considered that they might not be identical when I wrote this code, or assumed
that partial would be non-zero for this case].
next prev parent reply other threads:[~2024-04-02 14:49 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-01 19:34 [Bug tree-optimization/114552] New: wrong code at -O1 and above on x86_64-linux-gnu zhendong.su at inf dot ethz.ch
2024-04-01 19:38 ` [Bug tree-optimization/114552] " pinskia at gcc dot gnu.org
2024-04-01 20:36 ` [Bug middle-end/114552] [13/14 Regression] " pinskia at gcc dot gnu.org
2024-04-02 11:33 ` rguenth at gcc dot gnu.org
2024-04-02 13:29 ` [Bug middle-end/114552] [13/14 Regression] wrong code at -O1 and above on x86_64-linux-gnu since r13-990 jakub at gcc dot gnu.org
2024-04-02 13:46 ` jakub at gcc dot gnu.org
2024-04-02 14:18 ` jakub at gcc dot gnu.org
2024-04-02 14:49 ` roger at nextmovesoftware dot com [this message]
2024-04-03 8:01 ` cvs-commit at gcc dot gnu.org
2024-04-03 14:32 ` [Bug middle-end/114552] [13 " jakub at gcc dot gnu.org
2024-04-21 4:08 ` cvs-commit at gcc dot gnu.org
2024-04-23 6:45 ` jakub at gcc dot gnu.org
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