From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id 35C683858D33; Fri,  3 Mar 2023 06:58:36 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 35C683858D33
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1677826716;
	bh=mt2SxS63Nyxh1ChU6dGCHxxT1IliAOLiRB0cjUUxlJc=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=cT+XO43545F6jNVAiWoPI5vRtOl5nNTiRi4xLkPDATb8AIe1YWC3V39n4QuZplZ7f
	 tfnpg2Rgg3YiJuyrHvihxa2/WdlUUVaI8qbOGtKv08e9OHOVboMKMIOWwi7R9sZqD1
	 0X4q9yIw9M4vbWiuf57ydYhhNfzsySFpMeHQ7Lu4=
From: "akihiko.odaki at daynix dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/109002] -O1 -ftree-pre -ftree-partial-pre
 results in stall value
Date: Fri, 03 Mar 2023 06:58:36 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 13.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: akihiko.odaki at daynix dot com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-109002-4-uwsp2TWnfV@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-109002-4@http.gcc.gnu.org/bugzilla/>
References: <bug-109002-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109002

--- Comment #2 from Akihiko Odaki <akihiko.odaki at daynix dot com> ---
Oops. Replacing i++ with i =3D !i removes the undefined behavior while the =
bug
still remains.=