From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 532543858D37; Sun, 12 Feb 2023 23:49:26 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 532543858D37 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1676245766; bh=b2zuk1SXBhYS8PeY4XFIkbFDn8GeSUJpGJcXiTx14QU=; h=From:To:Subject:Date:In-Reply-To:References:From; b=JKum+f8uBXXHOyQR23K4ol4v0vMeX0FC2iF9qrGNqTFvw0ucmFpmJ7HdzLGzKOPUD stBXewabAU9rSJeR15yUdWt4xatMxIAM14zLJMyNcsjCE7K0sH+slq2e9LM5YtWNAc lgIKkJjafNMV0h0jpM68PmlotOOYc8pVw3JJMhLk= From: "hp at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/108752] word_mode vectorization is pessimized by hard limit on nunits Date: Sun, 12 Feb 2023 23:49:25 +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: hp at gcc dot gnu.org 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: cc 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 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108752 Hans-Peter Nilsson changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |hp at gcc dot gnu.org --- Comment #3 from Hans-Peter Nilsson --- (In reply to Richard Biener from comment #0) > emulated vectors (aka word_mode vectorization). Ackchyually, more commonly known as SWAR: https://en.wikipedia.org/wiki/SWA= R. (IWBN if options and identifiers were keyed off that acronym.)=