From patchwork Thu Jul 6 19:19:47 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: 9828797 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 E551A604D9 for ; Thu, 6 Jul 2017 19:20:20 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 77E5C28734 for ; Thu, 6 Jul 2017 19:20:20 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6237328731; Thu, 6 Jul 2017 19:20:20 +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 8E37D28718 for ; Thu, 6 Jul 2017 19:20:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752836AbdGFTUG (ORCPT ); Thu, 6 Jul 2017 15:20:06 -0400 Received: from mail-wr0-f195.google.com ([209.85.128.195]:32971 "EHLO mail-wr0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752826AbdGFTUF (ORCPT ); Thu, 6 Jul 2017 15:20:05 -0400 Received: by mail-wr0-f195.google.com with SMTP id x23so2620534wrb.0 for ; Thu, 06 Jul 2017 12:20:05 -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=5Ip+69YjwlvEvGOtl4J5PdoQpov8Qgy8LfLTCNFRF6M=; b=p/6KDBZ4BSUiD9UCI+DKF39LSSHmChwBzelqUtmafuWqWVFi7quZTr17nV29YY9ZWF QfI4RIEyl6B4K6VqVT/mkxOSMa5MFK8IRu0gIE/k+12GeG5acnrtwBzyL/mDv0F4Kkqi UsAWztoXKELv0HsbcHL+ROleoDtXOvzbSGGojtbJ2GEmjbEtjNBxnV7DJhlNsrYrE1f4 TCi8w5VcLM+6l5NwfDDy5XM6VohZ8eFeThyf2kTpHxrBzNCldYWLA68r2070TdYZwnRa 6dQUCMaE4fesCb9yOVKSTeNmxYrSWemd6/Kfj0LKsWzrI5ojDKotJxbk3DFTpllw134o C2Rg== 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=5Ip+69YjwlvEvGOtl4J5PdoQpov8Qgy8LfLTCNFRF6M=; b=bDW0pQYQauOe55hdewrDjA0irUGv5itaJf9HxD/bnIZRTeuRy2kteJEsayi4WRYrYy z8oMNTZ9xJjjSKEZvNf7aBW5cXx13Kbp3ywM87iKTYMqKt5hWrZn81ahL8YDhkykTqOq N+zPIsxP5oXToG5Uovr71oYK7ek+qZ13a2WTi6cTtvzRfhzhOU4oDRfSI5bn8P234udv 3PaaGo3zxLEU7lRLFxzMLBAzNattEXxGAHTvIvDgTKhgs+QpjSVvLmKIyJZd4eabW4rW tTkHIutFEjiAjYEDWFjSvDIkbNv/zERxbybJy5lFngm5/spuG9O0MGRbUlyMS8yfCx5W bgMA== X-Gm-Message-State: AIVw110xjjaZ2bl8V8L/FyIckZK51IMdebxp9QvRLvuKSLgJM3JF605s 7lwmQo7nZt0swjGLdHs= X-Received: by 10.28.148.67 with SMTP id w64mr496098wmd.55.1499368799268; Thu, 06 Jul 2017 12:19:59 -0700 (PDT) Received: from localhost.localdomain ([2a02:a03f:8ed:9a00:4423:4b1:a7de:145e]) by smtp.gmail.com with ESMTPSA id h6sm1105533wmf.31.2017.07.06.12.19.58 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 06 Jul 2017 12:19:58 -0700 (PDT) From: Luc Van Oostenryck To: linux-sparse@vger.kernel.org Cc: Christopher Li , Luc Van Oostenryck Subject: [PATCH 2/5] avoid crash when ep->active is NULL Date: Thu, 6 Jul 2017 21:19:47 +0200 Message-Id: <20170706191950.81268-3-luc.vanoostenryck@gmail.com> X-Mailer: git-send-email 2.13.0 In-Reply-To: <20170706191950.81268-1-luc.vanoostenryck@gmail.com> References: <20170706191950.81268-1-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 --- linearize.c | 3 +++ validation/crash-ep-active.c | 17 +++++++++++++++++ 2 files changed, 20 insertions(+) create mode 100644 validation/crash-ep-active.c diff --git a/linearize.c b/linearize.c index c1ad0c2a4..b76e980dc 100644 --- a/linearize.c +++ b/linearize.c @@ -827,6 +827,9 @@ pseudo_t alloc_phi(struct basic_block *source, pseudo_t pseudo, int size) pseudo_t phi = __alloc_pseudo(0); static int nr = 0; + if (!source) + return VOID; + phi->type = PSEUDO_PHI; phi->nr = ++nr; phi->def = insn; diff --git a/validation/crash-ep-active.c b/validation/crash-ep-active.c new file mode 100644 index 000000000..61e17a188 --- /dev/null +++ b/validation/crash-ep-active.c @@ -0,0 +1,17 @@ +void a(void) +{ + 0 (0 + && + ({ + goto b; + }); + ); +} + +/* + * check-name: crash ep->active + * check-command: test-linearize $file + * + * check-error-ignore + * check-output-ignore + */