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 67E543858C20; Tue,  7 Mar 2023 10:09:17 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 67E543858C20
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1678183757;
	bh=NtGz2uITUxVmy2HIImRHSZHcDylCYRkxiB6acUpRISY=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=uUkI6VBOjMrPpyvtjce3uH3CFS2iQWbB6lRvenHKNWl3L8paDG8AY81seqQiSmSBM
	 98OAA9d427pPlPqEb0BLeEaK/9JADsxePS159y+Ln0SXCQFW2DrpfyWJlHv0f+BkLV
	 H+mlxkTE2jLB3oGSF10qX4dHb36TWn2Z8JKtxQ+o=
From: "rguenther at suse dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/109048] [13 regression] redundant mask
 compare generated by vectorizer.
Date: Tue, 07 Mar 2023 10:09:16 +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: missed-optimization
X-Bugzilla-Severity: normal
X-Bugzilla-Who: rguenther at suse dot de
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: 13.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-109048-4-05dWmP0WpF@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-109048-4@http.gcc.gnu.org/bugzilla/>
References: <bug-109048-4@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=3D109048

--- Comment #6 from rguenther at suse dot de <rguenther at suse dot de> ---
On Tue, 7 Mar 2023, jakub at gcc dot gnu.org wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109048
>=20
> Jakub Jelinek <jakub at gcc dot gnu.org> changed:
>=20
>            What    |Removed                     |Added
> -------------------------------------------------------------------------=
---
>              Status|UNCONFIRMED                 |NEW
>      Ever confirmed|0                           |1
>            Keywords|needs-bisection             |
>    Last reconfirmed|                            |2023-03-07
>                  CC|                            |aldyh at gcc dot gnu.org,
>                    |                            |jakub at gcc dot gnu.org
>=20
> --- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
> In bisection r13-1 through r13-6513 I see only one important change,
> r13-2267-g4fbe3e6aa74dae5c75a

That would probably trigger extra jump threading here.=