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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/111601] [14 Regression] profilebootstrap fails in stagestrain in libcody on x86_64-linux-gnu and powerpc64le-linux-gnu
Date: Mon, 27 Nov 2023 20:02:38 +0000	[thread overview]
Message-ID: <bug-111601-4-7xcwj7ZCBg@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-111601-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111601

--- Comment #23 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Looking around, seems do_analysis properly finds out both uses of the %r10 +=
96 - the store of %r5 later in the same bb and store of %r9 earlier in the same
bb (at the start of it), and continues because both stores look to be right
form and so changeable etc.
But then probably later on we punt on changing the store earlier in the bb
(after all, changing it would be invalid, because %r10 reachable at that point
is initialized by multiple different setters and all but one don't really have
that += 96 offset in them), but somehow get_uses is only done during analysis
and the pass doesn't give up on changing the other spots when it had to give up
changing one of the uses.

  parent reply	other threads:[~2023-11-27 20:02 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-26 15:27 [Bug bootstrap/111601] New: [14 Regression] bootstrap " doko at gcc dot gnu.org
2023-09-26 17:15 ` [Bug bootstrap/111601] " pinskia at gcc dot gnu.org
2023-10-17  2:11 ` bergner at gcc dot gnu.org
2023-10-18 13:31 ` doko at gcc dot gnu.org
2023-10-18 19:48 ` bergner at gcc dot gnu.org
2023-10-18 20:41 ` bergner at gcc dot gnu.org
2023-10-18 20:53 ` pinskia at gcc dot gnu.org
2023-10-18 21:26 ` bergner at gcc dot gnu.org
2023-10-19  6:23 ` rguenth at gcc dot gnu.org
2023-11-17  5:33 ` jeevitha at gcc dot gnu.org
2023-11-24 19:59 ` jakub at gcc dot gnu.org
2023-11-26 21:36 ` [Bug bootstrap/111601] [14 Regression] profilebootstrap " jakub at gcc dot gnu.org
2023-11-27 11:37 ` jakub at gcc dot gnu.org
2023-11-27 12:24 ` rguenther at suse dot de
2023-11-27 12:27 ` jakub at gcc dot gnu.org
2023-11-27 13:31 ` jakub at gcc dot gnu.org
2023-11-27 13:51 ` jakub at gcc dot gnu.org
2023-11-27 15:14 ` jakub at gcc dot gnu.org
2023-11-27 16:21 ` jakub at gcc dot gnu.org
2023-11-27 16:45 ` jakub at gcc dot gnu.org
2023-11-27 16:57 ` jakub at gcc dot gnu.org
2023-11-27 17:01 ` jakub at gcc dot gnu.org
2023-11-27 18:33 ` jakub at gcc dot gnu.org
2023-11-27 19:24 ` jakub at gcc dot gnu.org
2023-11-27 20:02 ` jakub at gcc dot gnu.org [this message]
2023-11-27 20:17 ` jakub at gcc dot gnu.org
2023-11-29  8:18 ` cvs-commit at gcc dot gnu.org
2023-11-29  8:31 ` jakub at gcc dot gnu.org
2023-11-30 17:20 ` jeevitha at gcc dot gnu.org

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