From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 0CC8A3858CDA; Sun, 28 May 2023 20:33:53 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 0CC8A3858CDA DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1685306033; bh=TmtoHKKZFCYiJYhZZ+nUEGlw4EgKJoREWt85WHK8J+U=; h=From:To:Subject:Date:In-Reply-To:References:From; b=VafIRoQk4HYZ03Y57ghYy0s6UcPkyPId+IRFoK2SBHGHTSLbCivtwrbZ/SglQDTsw vwKIQ1OoyVWfS+ama1VNS2IhLiEKjmqrg457xSBJAoMbdJhiwbTBpfQC5bgwPQ9STt azb8IL6iSgdND1z0VNRRcyyEMs2nvEsA6i4vjAAI= From: "hubicka at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/109985] __builtin_prefetch ignored by GCC 12/13 Date: Sun, 28 May 2023 20:33:52 +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: 13.1.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: hubicka at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: hubicka at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: assigned_to bug_status 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=3D109985 Jan Hubicka changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|unassigned at gcc dot gnu.org |hubicka at gcc dot = gnu.org Status|NEW |ASSIGNED --- Comment #5 from Jan Hubicka --- Hmm, this is slipperly. So novops tells gcc that the function has on memory side effects and in turn we optimize out the call? I think we need to handle novops as having side-effects.=