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=-0.8 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 E56D5C43387 for ; Wed, 9 Jan 2019 08:02:38 +0000 (UTC) Received: from isis.lip6.fr (isis.lip6.fr [132.227.60.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 326522075C for ; Wed, 9 Jan 2019 08:02:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="KlI/6L6H" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 326522075C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=cocci-bounces@systeme.lip6.fr Received: from systeme.lip6.fr (systeme.lip6.fr [132.227.104.7]) by isis.lip6.fr (8.15.2/lip6) with ESMTP id x0982Pno027244 ; Wed, 9 Jan 2019 09:02:25 +0100 (CET) Received: from systeme.lip6.fr (systeme.lip6.fr [127.0.0.1]) by systeme.lip6.fr (Postfix) with ESMTP id 40C1476F2; Wed, 9 Jan 2019 09:02:25 +0100 (CET) Received: from isis.lip6.fr (isis.lip6.fr [132.227.60.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by systeme.lip6.fr (Postfix) with ESMTPS id 76DCB76E6 for ; Wed, 9 Jan 2019 09:02:23 +0100 (CET) Received: from mail-oi1-x22c.google.com (mail-oi1-x22c.google.com [IPv6:2607:f8b0:4864:20:0:0:0:22c] (may be forged)) by isis.lip6.fr (8.15.2/lip6) with ESMTP id x0982Ma4009554 for ; Wed, 9 Jan 2019 09:02:22 +0100 (CET) X-pt: isis.lip6.fr Received: by mail-oi1-x22c.google.com with SMTP id y23so5608504oia.4 for ; Wed, 09 Jan 2019 00:02:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=9hoTxJgsu3loMqXPDgQ0VExKXmmbCipCVSDhIhc3v28=; b=KlI/6L6HZAhxkmyvBha2N/6Ak4ZFIGdCXB3WlX5Gwiw7JsVGCyRCgzmRtoI1iqrCgN TswqhTaU9DNDU0aOPyy/bWdQhURkSskDZSE1i/JjGkaXBHV/Ya3QpHaUOiKSqnd7UMLY 7Qh3lSgxccg9Th2FpAHpMfsfJ+/SyNjTElfP5e1/c1tHz7mkcXk2Y0WE7LRvMWaK89in K3nXbHuV38buL6XmiS+JIDLraVvaQAsTmKMD8jOnCjckpZS+UbBoaF5r6x1vSxWGCjs3 LtO1T3QOzpJxCany2W9rFi4RXEKnAeyA9freNpSrFLOsflf6WA3CfmRbsvxON/J+adRo gZ3Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=9hoTxJgsu3loMqXPDgQ0VExKXmmbCipCVSDhIhc3v28=; b=ETaNMVfzgx39sopLxCdN3+cqwefsFy/4QG2AT5NbOC3QQinYpsfL/SQgCvHEqngIA6 yglqvv8Ix3C9IHJ1/fO1FiS5YCL9G1I7oWM2TUgHGR35S1bIVINL3PmJudFOeR1qEOPN c49UqO2s+Vr5qmviFGR7ubHhSyqaG5S75eCq8sy5HCq97mpzq7MfyiJDiRhmg6aO/CXB B5FVBSpiQOU5VS94ZhF/Y9LEesqFzxIJ7/zWWwVRw1V8o/HprDA5UYVCaIOWHUdiE/cr UHNUhIwCKpK4lZ4cTHhUqe3+oUSc4l33BEIxAl4G9/ZIpJqy5pMpYjW5RUwHdE6aC+p9 2MEg== X-Gm-Message-State: AJcUukdc4XKmVbOaZA3AR+CqznWe91Wp7pd6m2thtqhulCWrTxp/cjEE 365jjvj4BywLVsqUgnTvCy6PBiK3UspG835IiYQeKu1BZS4= X-Google-Smtp-Source: ALg8bN5syHqru0JTrsFauvH+sQFsn9o8sL09Vo79/iZkeWE/Ag0qe9OjuJMybK6Wt8RrHzlp1ifpO+76+dNy7GzkKRI= X-Received: by 2002:aca:e884:: with SMTP id f126mr3341270oih.181.1547020942044; Wed, 09 Jan 2019 00:02:22 -0800 (PST) MIME-Version: 1.0 From: Evan Zhao Date: Wed, 9 Jan 2019 16:02:10 +0800 Message-ID: To: cocci@systeme.lip6.fr X-Greylist: Sender IP whitelisted, Sender e-mail whitelisted, not delayed by milter-greylist-4.4.3 (isis.lip6.fr [132.227.60.2]); Wed, 09 Jan 2019 09:02:25 +0100 (CET) X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.4.3 (isis.lip6.fr [IPv6:2001:660:3302:283c:0:0:0:2]); Wed, 09 Jan 2019 09:02:23 +0100 (CET) X-Scanned-By: MIMEDefang 2.78 on 132.227.60.2 X-Scanned-By: MIMEDefang 2.78 Subject: [Cocci] A question about a part of a CTL formula X-BeenThere: cocci@systeme.lip6.fr X-Mailman-Version: 2.1.13 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: cocci-bounces@systeme.lip6.fr Errors-To: cocci-bounces@systeme.lip6.fr Hi there, I am looking at a CTL formula generated by spatch with "--show-ctl-text", for example, for a cocci file like @@ expression e,e1,e2; @@ if (e) - GOTO(e1); -else GOTO(e2); + e1; +else e2; it corresponding CTL formula is: CTL = Let _r_0 = (EX^((TrueBranch v InLoop)) v EX^(EX^(FalseBranch))) in ((_r_0 & (Ex e1 . ((Ex_ e . (Ex _v . if (e) )) &, ((EX(FalseBranch) &, EX(After)) &, ((EX((TrueBranch &, AX((Ex _v . GOTO(e1);)))) &, EX((FalseBranch &, AX(((Ex _v . else ) &, AX((Ex e2 . (Ex _v . GOTO(e2);)))))))) &, EX((After &, EX((Ex _v . _S1))))))))) v (!_r_0 & (Ex e1 . ((Ex_ e . if (e) ) &, (EX(FalseBranch) &, ((EX((TrueBranch &, AX((Ex _v . GOTO(e1);)))) &, EX((FalseBranch &, AX(((Ex _v . else ) &, AX((Ex e2 . (Ex _v . GOTO(e2);)))))))) &, EX(After))))))) and I noticed that Let _r_0 = (EX^((TrueBranch v InLoop)) v EX^(EX^(FalseBranch))) in is a fixed pattern, and I can track it at somewhere around the function of do_between_dots in the module Asttoctl2, but I don't what it stands for. Cloud someone tell me what purpose it serves for? Thanks in advance. Best regards, Evan _______________________________________________ Cocci mailing list Cocci@systeme.lip6.fr https://systeme.lip6.fr/mailman/listinfo/cocci