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 9B6DC384CB97; Fri,  1 Dec 2023 20:42:43 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 9B6DC384CB97
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1701463363;
	bh=uGT4OhtWY2Qi+JFW3qIlQ777k0Yj6ronJEkaNfqzSFk=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=NsjTpSDfpmJ/CSKTiuvYBJ6s1TAHNAccB3gvq7lN+iVVRu+oXGaDzevi2tKlWDBPy
	 DIDP1i34AaaWP7xUyIBvJgcX3o/l4qvJmmoD6mTlGINX+8TqtiOB7XTscawsMqVE4t
	 RBCplHIDXHMlR+ZLppNGDTRKlNr6npo+sRgtL/PU=
From: "pinskia 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: Fri, 01 Dec 2023 20:42:43 +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: normal
X-Bugzilla-Who: pinskia at gcc dot gnu.org
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: see_also
Message-ID: <bug-112814-4-dlZuXqe1LI@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

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://github.com/llvm/llv
                   |                            |m-project/issues/73904

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Similarly:
```
int f(int a, int b, int c)
{
        int d, e;
        return (c ? a : b) + (c ? b : a);
}
```


Note the above could be done using a match pattern. catching it before
gimplification.=