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[8.43.85.97]) by mx.google.com with ESMTPS id q14-20020a170906144e00b00992dce29d4csi10535312ejc.874.2023.08.24.07.44.51 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Aug 2023 07:44:51 -0700 (PDT) Received-SPF: pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 as permitted sender) client-ip=8.43.85.97; Authentication-Results: mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=PNPey2GL; spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 8.43.85.97 as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gnu.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 0AD1C38845F9 for ; Thu, 24 Aug 2023 14:41:58 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 0AD1C38845F9 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1692888118; bh=nrW4e+3ON3lb5Xe/C1HogOGvHbHNBbXwBcUO2GWtlG8=; h=To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From:Reply-To:From; b=PNPey2GLns2JzJbewy51QI287FCn9w5ZwgO7GaRUoLS6TlpmvK8lT7pd57S6gdsns TZbft06Lg8Ysdmxh+54a5okmdABQCdN37tjIoNpWZyu0umo3sSequtZQO8H2aXx7M/ LsKOwK1mMt+U5PLbR/7PijF4J3KbiemQA6fMAPL4= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by sourceware.org (Postfix) with ESMTPS id A01093858401 for ; Thu, 24 Aug 2023 14:39:15 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org A01093858401 Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-539-QkwoSXqvMACIgzzGzzCx5Q-1; Thu, 24 Aug 2023 10:39:13 -0400 X-MC-Unique: QkwoSXqvMACIgzzGzzCx5Q-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id D4A6780557A for ; Thu, 24 Aug 2023 14:39:07 +0000 (UTC) Received: from t14s.localdomain.com (unknown [10.22.32.117]) by smtp.corp.redhat.com (Postfix) with ESMTP id AF65D40C6F4C; Thu, 24 Aug 2023 14:39:07 +0000 (UTC) To: gcc-patches@gcc.gnu.org Cc: David Malcolm Subject: [PATCH 8/9] analyzer: handle strlen(BITS_WITHIN) [PR105899] Date: Thu, 24 Aug 2023 10:39:02 -0400 Message-Id: <20230824143903.3161185-9-dmalcolm@redhat.com> In-Reply-To: <20230824143903.3161185-1-dmalcolm@redhat.com> References: <20230824143903.3161185-1-dmalcolm@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Spam-Status: No, score=-11.4 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: David Malcolm via Gcc-patches From: David Malcolm Reply-To: David Malcolm Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Sender: "Gcc-patches" X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1775122033770545069 X-GMAIL-MSGID: 1775122033770545069 gcc/analyzer/ChangeLog: PR analyzer/105899 * region-model.cc (fragment::has_null_terminator): Handle SK_BITS_WITHIN. --- gcc/analyzer/region-model.cc | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/gcc/analyzer/region-model.cc b/gcc/analyzer/region-model.cc index 6574ec140074..025b555d7b97 100644 --- a/gcc/analyzer/region-model.cc +++ b/gcc/analyzer/region-model.cc @@ -3357,10 +3357,29 @@ struct fragment } break; + case SK_BITS_WITHIN: + { + const bits_within_svalue *bits_within_sval + = (const bits_within_svalue *)m_sval; + byte_range bytes (0, 0); + if (bits_within_sval->get_bits ().as_byte_range (&bytes)) + { + const svalue *inner_sval = bits_within_sval->get_inner_svalue (); + fragment f (byte_range + (start_read_offset - bytes.get_start_bit_offset (), + std::max (bytes.m_size_in_bytes, + available_bytes)), + inner_sval); + return f.has_null_terminator (start_read_offset, out_bytes_read); + } + } + break; + default: // TODO: it may be possible to handle other cases here. - return tristate::TS_UNKNOWN; + break; } + return tristate::TS_UNKNOWN; } static tristate