From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 9C8FF3858D35; Fri, 10 Nov 2023 13:10:15 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 9C8FF3858D35 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1699621815; bh=cMd2IvpDNweKf1OqVDMmZTrlTur3d7aLR0Pt9QIg6hY=; h=From:To:Subject:Date:In-Reply-To:References:From; b=Dw7RgDG+K1I/b0VPSpTCr39iAWeBDql0+vUiVmvQeWrYtP8CemkhWDJ3gd6VVgUn5 2AdGd5SoDMcCaeGY3qg1le5OPVeFnu0bJ8eOGItXZDExQcMtSq+3gcEG7GRe9u8riz MIarts/gkxbls6HMV6AmwLfePNi4yy7cxcSFmbbk= From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/109088] GCC does not always vectorize conditional reduction Date: Fri, 10 Nov 2023 13:10:15 +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: enhancement X-Bugzilla-Who: rguenth at gcc dot gnu.org 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: --- 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 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109088 --- Comment #16 from Richard Biener --- it's not exactly clear what the transform is you propose. it looks like a re-association but SSA names do not match up but the transform only replaces a single op with 0!?=