From patchwork Wed May 31 03:22:07 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: 9755731 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 20E39602CA for ; Wed, 31 May 2017 03:22:28 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 13CB3205F8 for ; Wed, 31 May 2017 03:22:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 08B4828474; Wed, 31 May 2017 03:22:28 +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=-6.3 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_SPAM, 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 B70AC205F8 for ; Wed, 31 May 2017 03:22:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751114AbdEaDW1 (ORCPT ); Tue, 30 May 2017 23:22:27 -0400 Received: from mail-wr0-f196.google.com ([209.85.128.196]:33309 "EHLO mail-wr0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751090AbdEaDWZ (ORCPT ); Tue, 30 May 2017 23:22:25 -0400 Received: by mail-wr0-f196.google.com with SMTP id v104so307258wrb.0 for ; Tue, 30 May 2017 20:22:25 -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=b+WMhJWqEH9hIKGxVemm/zrOzRE8YTKlDthP0J/uwCU=; b=PZiK8iiE7JEOOARWrEgMInx5GK1ZYPaG/d/W1Fkr3gGmgO4NEhhCLtIVH919sXKwBY RkUgmHaBU5zO9zWJYDohsmy2aXb/n0x54MXGZAiINSGncZ9E/7yyGoBYTwP03G1tGHbB fD7jDoeN9X1eK1TVAiN+emfzjJynbz/uHQeQXb8nZLWQQ2K8zcUC1QPikKvJ7J0IX/eN LhkPFhNABSqPJnI2z6DFj/QatgqwNAvcxO+kKrapM0Qfngd25e2ChmUc2nsuwd67oxqJ zYxcYvnfOrHuyIBrTPTd8sQxCcfnNnxQ0XEOmEn4namUfICUftR8ivaYH6SRi4nMlubL mxlg== 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=b+WMhJWqEH9hIKGxVemm/zrOzRE8YTKlDthP0J/uwCU=; b=OiYAJrCmNt5Mr06nfmqMULWu/fuBtuFJhTiwX3VDCBtY6YN/PbCLpZYi7fD1SsK3kX C+BeLRBAhT4y3MNiTuzP3SedqlUwZpUFnZLc70I6YI5llCP6PQCS+6VVm4G4okd7seRk MhZ0MnumisuB5KjihUHFKzOxHj8YEt6PEmX6ioKAcYr03uBcXhv+Hj3dxL5VeTJPWqkz gGoHGW7bP1mj4xDTJB9ssFmFtQpuG6pnzl+AvlRfrNR5wkt2iSVYlU8OqTYkKURAtnwA AgkEHze+X923O7JmLBooGKnDZ8oml+SB85OYnGTtPyNRRRu7AHGYY+HOV6HPcyO/wZxm wi5Q== X-Gm-Message-State: AODbwcAV7EN/H1VuzfWPobimGwRxs0zWunLrYk9YmXiGGo6AJ1CGmQKD kijCS8FORcl4TQtWp6A= X-Received: by 10.223.154.10 with SMTP id z10mr3783119wrb.76.1496200944411; Tue, 30 May 2017 20:22:24 -0700 (PDT) Received: from localhost.localdomain ([2a02:a03f:89c:5400:25d0:8511:1e85:9d96]) by smtp.gmail.com with ESMTPSA id y3sm31676991wmh.21.2017.05.30.20.22.23 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 30 May 2017 20:22:23 -0700 (PDT) From: Luc Van Oostenryck To: linux-sparse@vger.kernel.org Cc: Luc Van Oostenryck Subject: [PATCH 9/9] div0: add missing tests for floating point div by zero Date: Wed, 31 May 2017 05:22:07 +0200 Message-Id: <20170531032207.95830-10-luc.vanoostenryck@gmail.com> X-Mailer: git-send-email 2.13.0 In-Reply-To: <20170531032207.95830-1-luc.vanoostenryck@gmail.com> References: <20170531032207.95830-1-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 Signed-off-by: Luc Van Oostenryck --- validation/div-by-zero-fp.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/validation/div-by-zero-fp.c b/validation/div-by-zero-fp.c index 787af1636..957bc732c 100644 --- a/validation/div-by-zero-fp.c +++ b/validation/div-by-zero-fp.c @@ -3,14 +3,22 @@ double gbad(double a) { return 2.0 / 0.0; } double fool(double a) { return a / 0; } double ffoo(double a) { return a / 0.0; } +double fbar(double a) { if (a && 0) a / 0.0; return 0; } +double fbaz(double a) { return a /= 0.0; } +double fquz(double a) { return a / (a && 0); } + /* * check-name: div-by-zero-fp.c * check-command: sparse -Wno-decl $file + * check-known-to-fail * * check-error-start div-by-zero-fp.c:1:36: warning: division by zero div-by-zero-fp.c:2:36: warning: division by zero div-by-zero-fp.c:3:34: warning: division by zero div-by-zero-fp.c:4:34: warning: division by zero +div-by-zero-fp.c:6:39: warning: division by zero +div-by-zero-fp.c:7:34: warning: division by zero +div-by-zero-fp.c:8:34: warning: division by zero * check-error-end */