From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 20F693857B89; Fri, 29 Jul 2022 13:21:42 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 20F693857B89 From: "already5chosen at yahoo dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/105617] [12/13 Regression] Slp is maybe too aggressive in some/many cases Date: Fri, 29 Jul 2022 13:21:41 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 12.1.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: already5chosen at yahoo dot com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 12.2 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 29 Jul 2022 13:21:42 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105617 --- Comment #15 from Michael_S --- (In reply to Richard Biener from comment #14) > (In reply to Michael_S from comment #12) > > On related note... > > One of the historical good features of gcc relatively to other popular > > compilers was absence of auto-vectorization at -O2. > > When did you decide to change it and why? >=20 > Well, people requested it ... so GCC 12 is now having it (with an extra > eye on code size but this all doesn't work for scalar code vectorization > which OTOH is thought to almost always benefit code size ...). "People" is a vague term. You didn't organize voting among all gcc users, I suppose. So, count me as "people" who asks to remove it. Somehow , I suspect that the other one who will vote like me has a middle n= ame Benedict.=