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 B575E3858C78; Mon,  4 Dec 2023 06:50:14 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B575E3858C78
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1701672614;
	bh=ijW+UZaXpsnub7rSC+X8HCE5iF1L7wnK8TLKACj1A44=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=O2EKwQdjd+kTVjCHh8oXNX5rWHFoX+K1/2ilG1wzn6mjt0YxWA3ZxBgsifwYGDELY
	 eJrOjduSF/D2Btk1NtQr1r6Vx3Dm5FRQutRDL1Tal4vW0QtFyNeXwzoAEW0vlAWZRf
	 ZEgYKj/LHCiYURPTVNavTvYJfkQ6Mjky9nSNaX/0=
From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/112814] `Plus <PHI <a,b>, PHI<b,a>>` is not
 optimized to just PLUS<a,b>
Date: Mon, 04 Dec 2023 06:50:14 +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: 14.0
X-Bugzilla-Keywords: missed-optimization
X-Bugzilla-Severity: enhancement
X-Bugzilla-Who: rguenth at gcc dot gnu.org
X-Bugzilla-Status: NEW
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: bug_status everconfirmed cf_reconfirmed_on
Message-ID: <bug-112814-4-cXIItll5AF@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-112814-4@http.gcc.gnu.org/bugzilla/>
References: <bug-112814-4@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=3D112814

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2023-12-04

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Interesting one - this isn't catched by PRE code hoisting because that only
hoists sth if it's available in one of the successors (but it's only antic
there).=