From patchwork Tue Mar 15 21:59:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Malcolm X-Patchwork-Id: 1605816 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org header.a=rsa-sha256 header.s=default header.b=K6eI1cb7; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=2620:52:3:1:0:246e:9693:128c; helo=sourceware.org; envelope-from=gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=) Received: from sourceware.org (server2.sourceware.org [IPv6:2620:52:3:1:0:246e:9693:128c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4KJ6l81DL8z9sCD for ; Wed, 16 Mar 2022 08:59:48 +1100 (AEDT) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id C49D93858420 for ; Tue, 15 Mar 2022 21:59:45 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C49D93858420 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1647381585; bh=B3qtpGgMxcWjHmlo+YY6EH0n0CIitE0kZR0yf4jFM7I=; h=To:Subject:Date:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:From; b=K6eI1cb7i51ibT2/MwjXF62P+wahw81WoMksh72rA0Kq1tHKC6ScDY/ihJ07ifhp2 Et0HrYumdGu6Rk8vxJXdCQLmzhsgz6enyBzuXT0GrmM5aE6h89FWVYtxxflajEw2oO Bnly1IYZrh80Cvq8AoHCr4Omfpdc7GfIdANTmJ+Y= 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 99054385843F for ; Tue, 15 Mar 2022 21:59:19 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 99054385843F 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-73-kigY0QnrOcOjvEp3gDBi1A-1; Tue, 15 Mar 2022 17:59:18 -0400 X-MC-Unique: kigY0QnrOcOjvEp3gDBi1A-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 D639B80231F for ; Tue, 15 Mar 2022 21:59:17 +0000 (UTC) Received: from t14s.localdomain.com (unknown [10.2.17.210]) by smtp.corp.redhat.com (Postfix) with ESMTP id B477F40E80E5; Tue, 15 Mar 2022 21:59:17 +0000 (UTC) To: gcc-patches@gcc.gnu.org Subject: [committed] analyzer: add test coverage for PR 95000 Date: Tue, 15 Mar 2022 17:59:17 -0400 Message-Id: <20220315215917.3955025-1-dmalcolm@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.11.54.2 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Spam-Status: No, score=-11.7 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, KAM_NUMSUBJECT, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) 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+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" PR analyzer/95000 isn't fixed yet; add test coverage with XFAILs. Successfully regrtested on x86_64-pc-linux-gnu. Pushed to trunk as r12-7659-gd1d95846e3c901. gcc/testsuite/ChangeLog: PR analyzer/95000 * gcc.dg/analyzer/pr95000-1.c: New test. Signed-off-by: David Malcolm --- gcc/testsuite/gcc.dg/analyzer/pr95000-1.c | 38 +++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/analyzer/pr95000-1.c diff --git a/gcc/testsuite/gcc.dg/analyzer/pr95000-1.c b/gcc/testsuite/gcc.dg/analyzer/pr95000-1.c new file mode 100644 index 00000000000..bb23ab7488e --- /dev/null +++ b/gcc/testsuite/gcc.dg/analyzer/pr95000-1.c @@ -0,0 +1,38 @@ +#include "analyzer-decls.h" + +void test_1 (char* x) +{ + char* y=0; + switch (*x) { + case 'a': /* { dg-message "to here" } */ + y="foo"; + case 'b': + if (*x=='a') *y='b'; /* { dg-bogus "dereference of NULL 'y'" "deref of null (PR analyzer/95000)" { xfail *-*-* } } */ + /* { dg-warning "write to string literal" "write to string literal" { target *-*-* } .-1 } */ + } +} + +void test_switch_char(char x) { + switch (x) { + case 'b': + __analyzer_eval (x == 'b'); /* { dg-warning "TRUE" "expected" { xfail *-*-* } } */ + /* { dg-bogus "UNKNOWN" "status quo (PR analyzer/95000)" { xfail *-*-* } .-1 } */ + } +} + +void test_switch_int(int x) { + switch (x) { + case 97: + __analyzer_eval (x == 97); /* { dg-warning "TRUE" } */ + } +} + +void test_if_char(char x) { + if (x == 'b') + __analyzer_eval (x == 'b'); /* { dg-warning "TRUE" } */ +} + +void test_if_int(int x) { + if (x == 97) + __analyzer_eval (x == 97); /* { dg-warning "TRUE" } */ +}