From patchwork Thu Jun 8 07:39:25 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luc Van Oostenryck X-Patchwork-Id: 9774109 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id EA4BB6034B for ; Thu, 8 Jun 2017 07:39:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D708C1FE85 for ; Thu, 8 Jun 2017 07:39:40 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CBC4527165; Thu, 8 Jun 2017 07:39:40 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 74E2D1FE85 for ; Thu, 8 Jun 2017 07:39:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751610AbdFHHjk (ORCPT ); Thu, 8 Jun 2017 03:39:40 -0400 Received: from mail-wm0-f66.google.com ([74.125.82.66]:34397 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751559AbdFHHjj (ORCPT ); Thu, 8 Jun 2017 03:39:39 -0400 Received: by mail-wm0-f66.google.com with SMTP id 70so5875340wme.1 for ; Thu, 08 Jun 2017 00:39:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=TtIh50OjrhDKbjHjrqKBouIwMoUNhbnZnSS/TAnI5pg=; b=gOG0o/pF3l1r6epmc+56ltSzmKGDoB27pg7tSejLWN+6CMiGtw/4sWHi7LrQorgVPz RmGkODm1Hj31JFwAklp305M3aUhTnBRvPHQXoa/OSBthwFTDno7mAWUSvbETIYLWFo68 sjoILSFJN3CeYGgWMDS6VvraPSjnEauIBq2mcTUaJqWdwMIZUXuu+MBnLKu1Nxr1R9U0 oS+8LEDvHPeemux6tSL1xfdmzMV/v6dOLnnd51JwsimLjo83A3HBIXTZyU5rjUoOviky ofBzX0su5aWE8zT68SM3aSMfGI6E7VJdvbeSVqurMnhyH6dwGDZ/EyIaezvdit0SQGGc eeOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=TtIh50OjrhDKbjHjrqKBouIwMoUNhbnZnSS/TAnI5pg=; b=sX18stC+SebkGnj2OvjBZqo4l9NX9859GSE6GOLJnE1DioQLREKIQma9a7STIN2h1M KTlQdZXvhwmWd62WLupJFa0HcV4oIo+/rQ8/RTVbJna06DDoMKI61vrdjQKG/RGakkj8 rnNYmYWNd5yjO2mSzMQEhk1fzuODQ1H1ruRSf4ovyFdeOmUhtaUrBaImSMIqTbqKoSI6 eVmu9xT5yA8vYGWDHTfh0XFCeBVzd5kdk+/gcExbG23ZdY86ZhQ2zfggO9AJXY90DTln 1XXbIGL4NkuMse3q/ynjlkmBZN4JmdnCsmGctpmnNOuMMDj7bphSjnihOPAiwljxUeym puBw== X-Gm-Message-State: AODbwcAltIBJiOtoVwfru1yoE2ErfjAuNFYwXkE39mTjCLvGb7mlYUDi wTooOaWqK8Kxl7dSRN8= X-Received: by 10.80.152.22 with SMTP id g22mr24016828edb.10.1496907578193; Thu, 08 Jun 2017 00:39:38 -0700 (PDT) Received: from localhost.localdomain ([2a02:a03f:89c:5400:21b3:ee4b:e91a:4fb6]) by smtp.gmail.com with ESMTPSA id o30sm1765888edc.22.2017.06.08.00.39.37 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 08 Jun 2017 00:39:37 -0700 (PDT) From: Luc Van Oostenryck To: linux-sparse@vger.kernel.org Cc: Chris Li , Luc Van Oostenryck Subject: [PATCH 1/3] extract has_users() from dead_insn() Date: Thu, 8 Jun 2017 09:39:25 +0200 Message-Id: <20170608073927.55218-2-luc.vanoostenryck@gmail.com> X-Mailer: git-send-email 2.13.0 In-Reply-To: <20170608073927.55218-1-luc.vanoostenryck@gmail.com> References: <20170608073927.55218-1-luc.vanoostenryck@gmail.com> Sender: linux-sparse-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sparse@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP so that it can be reused for others uses. Signed-off-by: Luc Van Oostenryck --- simplify.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/simplify.c b/simplify.c index a141ddd43..65114193a 100644 --- a/simplify.c +++ b/simplify.c @@ -301,16 +301,23 @@ void kill_insn(struct instruction *insn, int force) return; } +static int has_users(pseudo_t p) +{ + struct pseudo_user *pu; + FOR_EACH_PTR(p->users, pu) { + if (*pu->userp != VOID) + return 1; + } END_FOR_EACH_PTR(pu); + return 0; +} + /* * Kill trivially dead instructions */ static int dead_insn(struct instruction *insn, pseudo_t *src1, pseudo_t *src2, pseudo_t *src3) { - struct pseudo_user *pu; - FOR_EACH_PTR(insn->target->users, pu) { - if (*pu->userp != VOID) - return 0; - } END_FOR_EACH_PTR(pu); + if (has_users(insn->target)) + return 0; insn->bb = NULL; kill_use(src1);