From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 4C89B3886C73; Thu, 15 Apr 2021 16:01:53 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 4C89B3886C73 From: "andysem at mail dot ru" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/99971] GCC generates partially vectorized and scalar code at once Date: Thu, 15 Apr 2021 16:01:53 +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: 10.2.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: andysem at mail dot ru X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- 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: Thu, 15 Apr 2021 16:01:53 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99971 --- Comment #6 from andysem at mail dot ru --- Hmm, it looks like the original code has changed enough so that the problem= no longer reproduces, with or without __restrict__. I don't have the older ver= sion of the code, so I can't tell what changed exactly. Data alignment most prob= ably did change, but data layout of A (its equivalent in the original code) as w= ell as the operation on it certainly didn't. Sorry for the confusion.=