From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 0608A3858289; Mon, 8 Apr 2024 12:26:00 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 0608A3858289 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1712579161; bh=DEgeYhZ0NyFyjcaiJMxgEFb/zPD+iOxF3R64my8g9vE=; h=From:To:Subject:Date:In-Reply-To:References:From; b=Rg3ffc/5icAJRo75hh9eXBgE9+szmdecZ68I/og3w24Kqm/Cc5XfCMA45WEKciA+R 0H6sh3/bd43ctGabQNXd0HOIxptVDuHwEjKCfYevsQCcvN7ljmt7p1f2oidEtm2aqV Vl7QYusxHly87EDAadeo3ry26qks5OTRmiaIcniY= From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/114635] OpenMP reductions fail dependency analysis Date: Mon, 08 Apr 2024 12:26:00 +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: 14.0 X-Bugzilla-Keywords: missed-optimization, openmp X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED 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: 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=3D114635 Richard Biener changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #3 from Richard Biener --- As for the dependence analysis itself - the issue is that the D.5606[_33] style accesses have no access functions - I'm not sure how they evolve, but I see their domain is even [0, POLY_INT_CST [15, 16] ]. I guess we don't expect to have dependence analysis handle this but do dependence fully within 'safelen' here.=