From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 61758 invoked by alias); 23 Oct 2017 17:28:36 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 61653 invoked by uid 89); 23 Oct 2017 17:28:36 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-11.7 required=5.0 tests=AWL,BAYES_00,GIT_PATCH_2,GIT_PATCH_3,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.2 spammy=069 X-HELO: mail-wm0-f41.google.com Received: from mail-wm0-f41.google.com (HELO mail-wm0-f41.google.com) (74.125.82.41) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Mon, 23 Oct 2017 17:28:35 +0000 Received: by mail-wm0-f41.google.com with SMTP id m72so11002622wmc.1 for ; Mon, 23 Oct 2017 10:28:34 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:mail-followup-to:subject:references:date :in-reply-to:message-id:user-agent:mime-version; bh=4iH0zE4UBCzqMXsAQACB214ou4RTGc/jgLWm3mR4kp0=; b=rv4O1/SPrx7eZkQ6hpk7OFFHmHtC9OHztqJeTyzgrdpo9r1+lgCLhgSR/z0xaYgRNL 8O8Yz07YANlYiUoTaFP4EMOiVCfrgOb2LXSHSGJU0CMxvcn42XqPNlqJYrn1iAkrzvCy PyT9H7mfqDFYOROIoOB0YekdAc1WN8wi6YtDysc3Ye/jmBIxQVpFzmrRjSCGTHlkSEzq v2aDveBYog3GM55Ur0oA8Ha6maBERGHusHteZG1XIgYnDFJnsrwe6PCZGz6SdwWVyYRM xMZQZunW+3XSiy4e6xvr8zhRufbC9Uf5ZbHf6h7vF2Yv3oZue1NpRJwgddAOyxVOofq3 dtBw== X-Gm-Message-State: AMCzsaUfTKWDGmnd74qcFS20aRvyy8ff0l2rLWUwSxAcM5aO95QSfBUI Gw8NeCVAJKE/wnRc/ee8llHJAwx7/Og= X-Google-Smtp-Source: ABhQp+Tn/r5TBlb7SJzK4KwsjAwNYJxkHTOxyZfBIujSEtFbPvIrZ0OpxHPBT27ccrLyjstR1DtI/w== X-Received: by 10.28.167.130 with SMTP id q124mr5746423wme.136.1508779712975; Mon, 23 Oct 2017 10:28:32 -0700 (PDT) Received: from localhost ([2.26.27.199]) by smtp.gmail.com with ESMTPSA id t18sm327237wrg.49.2017.10.23.10.28.32 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 23 Oct 2017 10:28:32 -0700 (PDT) From: Richard Sandiford To: gcc-patches@gcc.gnu.org Mail-Followup-To: gcc-patches@gcc.gnu.org, richard.sandiford@linaro.org Subject: [069/nnn] poly_int: vector_alignment_reachable_p References: <871sltvm7r.fsf@linaro.org> Date: Mon, 23 Oct 2017 17:29:00 -0000 In-Reply-To: <871sltvm7r.fsf@linaro.org> (Richard Sandiford's message of "Mon, 23 Oct 2017 17:54:32 +0100") Message-ID: <87lgk1ixj4.fsf@linaro.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-SW-Source: 2017-10/txt/msg01570.txt.bz2 This patch makes vector_alignment_reachable_p cope with variable-length vectors. 2017-10-23 Richard Sandiford Alan Hayward David Sherwood gcc/ * tree-vect-data-refs.c (vector_alignment_reachable_p): Treat the number of units as polynomial. Index: gcc/tree-vect-data-refs.c =================================================================== --- gcc/tree-vect-data-refs.c 2017-10-23 17:22:26.571498977 +0100 +++ gcc/tree-vect-data-refs.c 2017-10-23 17:22:34.681024458 +0100 @@ -1153,16 +1153,17 @@ vector_alignment_reachable_p (struct dat the prolog loop ({VF - misalignment}), is a multiple of the number of the interleaved accesses. */ int elem_size, mis_in_elements; - int nelements = TYPE_VECTOR_SUBPARTS (vectype); /* FORNOW: handle only known alignment. */ if (!known_alignment_for_access_p (dr)) return false; - elem_size = GET_MODE_SIZE (TYPE_MODE (vectype)) / nelements; + poly_uint64 nelements = TYPE_VECTOR_SUBPARTS (vectype); + poly_uint64 vector_size = GET_MODE_SIZE (TYPE_MODE (vectype)); + elem_size = vector_element_size (vector_size, nelements); mis_in_elements = DR_MISALIGNMENT (dr) / elem_size; - if ((nelements - mis_in_elements) % GROUP_SIZE (stmt_info)) + if (!multiple_p (nelements - mis_in_elements, GROUP_SIZE (stmt_info))) return false; }