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From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/112572] [14 regression] LLVM miscompiled since r14-5355-g3cd3a09b3f91a1
Date: Sun, 19 Nov 2023 09:24:53 +0000 [thread overview]
Message-ID: <bug-112572-4-h1I65x03q9@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-112572-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112572
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ebotcazou at gcc dot gnu.org
--- Comment #26 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Eric B. mentioned back in 2011, neither REG_DEAD nor REG_UNUSED needs to be
> kept up to date:
> https://gcc.gnu.org/pipermail/gcc-patches/2011-October/326733.html
> Also see PR 48773 where he mentioned the same.
> He mentioned the same thing again in 2018 even:
> https://gcc.gnu.org/pipermail/gcc-patches/2018-October/508057.html
REG_DEAD and REG_UNUSED notes are recomputed by DF so they do not need to be
maintained explicitly (although you may do it of course). REG_EQUAL and
REG_EQUIV notes are not recomputed by DF so they need to maintained explicitly.
next prev parent reply other threads:[~2023-11-19 9:24 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-16 20:06 [Bug middle-end/112572] New: " sjames at gcc dot gnu.org
2023-11-17 0:00 ` [Bug middle-end/112572] " sjames at gcc dot gnu.org
2023-11-17 0:41 ` sjames at gcc dot gnu.org
2023-11-17 4:13 ` sjames at gcc dot gnu.org
2023-11-17 4:14 ` sjames at gcc dot gnu.org
2023-11-17 5:21 ` sjames at gcc dot gnu.org
2023-11-17 5:23 ` pinskia at gcc dot gnu.org
2023-11-17 5:28 ` pinskia at gcc dot gnu.org
2023-11-17 10:43 ` jakub at gcc dot gnu.org
2023-11-18 10:18 ` sjames at gcc dot gnu.org
2023-11-18 10:19 ` sjames at gcc dot gnu.org
2023-11-18 10:23 ` sjames at gcc dot gnu.org
2023-11-18 10:58 ` sjames at gcc dot gnu.org
2023-11-18 10:59 ` sjames at gcc dot gnu.org
2023-11-18 11:00 ` sjames at gcc dot gnu.org
2023-11-18 11:11 ` jakub at gcc dot gnu.org
2023-11-18 11:36 ` sjames at gcc dot gnu.org
2023-11-18 21:00 ` pinskia at gcc dot gnu.org
2023-11-18 21:13 ` pinskia at gcc dot gnu.org
2023-11-18 21:28 ` pinskia at gcc dot gnu.org
2023-11-18 21:38 ` slyfox at gcc dot gnu.org
2023-11-18 21:55 ` pinskia at gcc dot gnu.org
2023-11-18 22:22 ` pinskia at gcc dot gnu.org
2023-11-18 22:39 ` pinskia at gcc dot gnu.org
2023-11-18 23:06 ` rsandifo at gcc dot gnu.org
2023-11-18 23:39 ` pinskia at gcc dot gnu.org
2023-11-19 7:21 ` pinskia at gcc dot gnu.org
2023-11-19 9:24 ` ebotcazou at gcc dot gnu.org [this message]
2023-11-19 9:42 ` sjames at gcc dot gnu.org
2023-11-30 21:09 ` jakub at gcc dot gnu.org
2023-11-30 21:12 ` pinskia at gcc dot gnu.org
2023-11-30 22:29 ` sjames at gcc dot gnu.org
2023-12-04 2:49 ` pinskia at gcc dot gnu.org
2023-12-04 11:01 ` sjames at gcc dot gnu.org
2023-12-06 9:02 ` jakub at gcc dot gnu.org
2023-12-06 18:32 ` pinskia at gcc dot gnu.org
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