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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/114700] Front-end optimization generates wrong code with -ftrapv. Date: Fri, 12 Apr 2024 03:35:16 +0000 [thread overview] Message-ID: <bug-114700-4-eCroEqYwBi@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-114700-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114700 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- See Also| |https://gcc.gnu.org/bugzill | |a/show_bug.cgi?id=106885, | |https://gcc.gnu.org/bugzill | |a/show_bug.cgi?id=66630 --- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Note `c - y - c` to become `-y` reduces the possible of an overflow and is well defined for wrapping so this might be still on purpose as there will never be an overflow that causes difference if assuming wrapping ...
next prev parent reply other threads:[~2024-04-12 3:35 UTC|newest] Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-04-12 2:22 [Bug c/114700] New: " lin1.hu at intel dot com 2024-04-12 2:34 ` [Bug middle-end/114700] " pinskia at gcc dot gnu.org 2024-04-12 2:47 ` lin1.hu at intel dot com 2024-04-12 2:47 ` lin1.hu at intel dot com 2024-04-12 3:21 ` pinskia at gcc dot gnu.org 2024-04-12 3:26 ` pinskia at gcc dot gnu.org 2024-04-12 3:35 ` pinskia at gcc dot gnu.org [this message] 2024-04-12 3:53 ` lin1.hu at intel dot com 2024-04-12 3:56 ` lin1.hu at intel dot com 2024-04-12 5:56 ` rguenth at gcc dot gnu.org 2024-04-12 6:33 ` [Bug middle-end/114700] Front-end optimization generates wrong code with -fsanitize=undefined xry111 at gcc dot gnu.org 2024-04-12 6:44 ` lin1.hu at intel dot com 2024-04-12 7:12 ` lin1.hu at intel dot com 2024-04-12 7:14 ` xry111 at gcc dot gnu.org 2024-04-12 8:51 ` lin1.hu at intel dot com 2024-04-12 10:15 ` [Bug middle-end/114700] middle-end " jakub at gcc dot gnu.org 2024-04-12 10:25 ` jakub at gcc dot gnu.org 2024-04-15 3:43 ` [Bug middle-end/114700] middle-end optimization generates causes -fsanitize=undefined not to happen in some cases lin1.hu at intel dot com 2024-04-15 6:49 ` jakub at gcc dot gnu.org 2024-04-15 7:44 ` lin1.hu at intel dot com 2024-04-17 1:50 ` lin1.hu at intel dot com
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