From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5ABB7C433E0 for ; Fri, 10 Jul 2020 00:13:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3451C2065F for ; Fri, 10 Jul 2020 00:13:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="BbjrQYdB" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726446AbgGJAN6 (ORCPT ); Thu, 9 Jul 2020 20:13:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53334 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726272AbgGJAN5 (ORCPT ); Thu, 9 Jul 2020 20:13:57 -0400 Received: from mail-ed1-x541.google.com (mail-ed1-x541.google.com [IPv6:2a00:1450:4864:20::541]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 777C1C08C5CE for ; Thu, 9 Jul 2020 17:13:57 -0700 (PDT) Received: by mail-ed1-x541.google.com with SMTP id d18so3213867edv.6 for ; Thu, 09 Jul 2020 17:13:57 -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 :mime-version:content-transfer-encoding; bh=enqFYqd6tgsb8MMCP7k85/ExV0OhBL6Pij31QI8um0w=; b=BbjrQYdBvuDokD3tLCVfsja/S3ZSlELJpPcfMfoUH52dLyCHaReSBI8ut+TCmxUn+4 K4YT5jowiAOYplcpUzZkBDh0j+/wlWmsNPvZlKCzab/N0CuDIQGgPX47rRhaalNY+eZ5 C/HWv1TcQPTkyabeth3pnGfdD/zr51hpxaGEYmf/AHfsf/dVWfFhd/u2+ZCkr2ZHFYVD wLI+lLev77DeR/gmIGNBzxrIm/MrZhRySAt1jFh0Qyny+59pfedf3OD/f8f8reBArrrt tzLuEv6XrQ1QJHYDb0SlP3AtnISDHReAOvHpCl2cqdB7qZMhb+odX3yQukvFv+42kQe2 zvkQ== 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:mime-version:content-transfer-encoding; bh=enqFYqd6tgsb8MMCP7k85/ExV0OhBL6Pij31QI8um0w=; b=p00y4vB6zZatxdvd3lSDAbs4tQcY+PtZhWtqz8+yaDkLqCv7SHZpzwlO3IsvGqZKMS fk5gUXc4eSboHuTGEfzy/pye/wD6n9VG9q6Wl/fRxYzyLLDDK8hPPu4rII4nvDm1oe8/ mFCDOGnS7Wrw4nw5mi4vVcayM43TEvWLWq+u2qv9TziFtpXCA2KE/SI/rBP8B7SxSPrh Qfg+GQ0hFzIFsaJ1GLNk2cQE7lK8rAgzO/1s1NhLmcZjs2VGJ4pY+jzQGQnGcc/VNCZO 4Ub9toOMOl4CE0nfs+iQeCG3Zr7og9ZcfYJ8qOlhdteJKj2NHR4Y5I8GPc/ClsJE1uIQ 53Gg== X-Gm-Message-State: AOAM532UmiI2F1LETQi/1TT7uLrjwVveMICwoh3/RyQz/bHfaaiE1aAx K+zPe7zH9ufiWO6R0FNpeKh5eKXG X-Google-Smtp-Source: ABdhPJye6ZpsMNYeSOpcZnFr+8iAjNoHozCc7gR47c6G7PNuTtfVpAS6X1eGJ24ouScD8JNg4ElIuA== X-Received: by 2002:a50:d49e:: with SMTP id s30mr1702835edi.228.1594340035952; Thu, 09 Jul 2020 17:13:55 -0700 (PDT) Received: from localhost.localdomain ([2a02:a03f:b7f9:7600:c80f:e21c:9480:e854]) by smtp.gmail.com with ESMTPSA id u8sm2614199ejm.65.2020.07.09.17.13.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Jul 2020 17:13:55 -0700 (PDT) From: Luc Van Oostenryck To: linux-sparse@vger.kernel.org Cc: Luc Van Oostenryck Subject: [PATCH 3/4] add testcase for missing warning for assignment to const Date: Fri, 10 Jul 2020 02:13:21 +0200 Message-Id: <20200710001322.18391-4-luc.vanoostenryck@gmail.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200710001322.18391-1-luc.vanoostenryck@gmail.com> References: <20200710001322.18391-1-luc.vanoostenryck@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-sparse-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sparse@vger.kernel.org The problem is seems to be related with evaluate_dereference() where all mods are dropped when the type is a node. Signed-off-by: Luc Van Oostenryck --- validation/eval/array-quals-node.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 validation/eval/array-quals-node.c diff --git a/validation/eval/array-quals-node.c b/validation/eval/array-quals-node.c new file mode 100644 index 000000000000..99a4db13e4da --- /dev/null +++ b/validation/eval/array-quals-node.c @@ -0,0 +1,29 @@ +struct s { + int a; + int b[3]; + int c[2][3]; +}; + +struct c { + const struct s s; +}; + +extern struct c v; + +void f(void) +{ + v.s.a = 0; + *v.s.b = 0; + **v.s.c = 0; +} + +/* + * check-name: array-quals-node + * check-known-to-fail + * + * check-error-start +eval/array-quals-node.c:15:14: error: assignment to const expression +eval/array-quals-node.c:16:14: error: assignment to const expression +eval/array-quals-node.c:17:14: error: assignment to const expression + * check-error-end + */ -- 2.27.0