From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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 5158B3858006 for ; Wed, 5 Oct 2022 18:11:30 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 5158B3858006 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1664993489; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=qxLcl/PH2wUPedLaDBDtBPU3WjVGmX5be2AEJWaVMRM=; b=HgrmCNrtXVQfzBZJACbWyQK0qbhmczJbKtTg/6F3gR/Qb4clw8fTCDIg0SVgUBXTFzZ/MI VkyPZPJzKWJoSzCGklgKEI2dUk+pTbSRHLLjxY/AIp5JWWT7AHh9ymQ1WoonOAkYGVdhk2 AEZrSQlSfEnrvgiiwje7hSrSbklaMPE= 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-91--xRAumIBMTCckcYWdM_LUQ-1; Wed, 05 Oct 2022 14:11:28 -0400 X-MC-Unique: -xRAumIBMTCckcYWdM_LUQ-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 6E0A6918864 for ; Wed, 5 Oct 2022 18:11:28 +0000 (UTC) Received: from t14s.localdomain.com (unknown [10.2.17.92]) by smtp.corp.redhat.com (Postfix) with ESMTP id 44FDAC15BA4; Wed, 5 Oct 2022 18:11:28 +0000 (UTC) From: David Malcolm To: gcc-patches@gcc.gnu.org Cc: David Malcolm Subject: [committed] analyzer: add regression test for PR 107158 Date: Wed, 5 Oct 2022 14:11:27 -0400 Message-Id: <20221005181127.749161-1-dmalcolm@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII"; x-default=true X-Spam-Status: No, score=-11.6 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_LOW,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 List-Id: PR analyzer/107158 reports an ICE when using -fanalyzer -fanalyzer-call-summaries on a particular source file. It turns out I just fixed this ICE in r13-3094-g6832c95c0e1a58. This followup patch adds a somewhat reduced reproducer as a regression test. Unfortunately, although the ICE is fixed, there are two false positives from -Wanalyzer-malloc-leak on the test case, so I'm going to use PR analyzer/107158 for tracking those false positives. Tested on x86_64-pc-linux-gnu. Pushed to trunk as r13-3096-gef878564140cbc. gcc/testsuite/ChangeLog: PR analyzer/107158 * gcc.dg/analyzer/call-summaries-pr107158.c: New test. Signed-off-by: David Malcolm --- .../gcc.dg/analyzer/call-summaries-pr107158.c | 83 +++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/analyzer/call-summaries-pr107158.c diff --git a/gcc/testsuite/gcc.dg/analyzer/call-summaries-pr107158.c b/gcc/testsuite/gcc.dg/analyzer/call-summaries-pr107158.c new file mode 100644 index 00000000000..54f442f0ad4 --- /dev/null +++ b/gcc/testsuite/gcc.dg/analyzer/call-summaries-pr107158.c @@ -0,0 +1,83 @@ +/* { dg-additional-options "-fanalyzer-call-summaries" } */ + +typedef __SIZE_TYPE__ size_t; +enum { _ISspace = ((5) < 8 ? ((1 << (5)) << 8) : ((1 << (5)) >> 8)) }; +extern const unsigned short int **__ctype_b_loc(void) + __attribute__((__nothrow__, __leaf__, __const__)); +extern void *malloc(size_t __size) + __attribute__((__nothrow__, __leaf__, __malloc__, __alloc_size__(1))); +extern char *strcpy(char *__restrict __dest, const char *__restrict __src) + __attribute__((__nothrow__, __leaf__, __nonnull__(1, 2))); +extern size_t strlen(const char *__s) + __attribute__((__nothrow__, __leaf__, __pure__, __nonnull__(1))); + +struct mydata { + struct mydata *link; + char *name; + char *type; +}; + +static struct mydata *all_data; +static int line_no; + +__attribute__((__noreturn__)) void failed(const char *message); + +static char *string_dup(const char *string) { + char *buf; + + if ((buf = malloc(strlen(string) + 1)) == ((void *)0)) + failed("malloc() failed"); + + return strcpy(buf, string); +} + +static void store_data(const char *name, const char *type) { + struct mydata *p, *q; + + if ((p = (struct mydata *)malloc(sizeof(struct mydata))) == ((void *)0)) + failed("malloc() failed"); + + p->link = ((void *)0); + p->name = string_dup(name); + p->type = string_dup(type); + + if ((q = all_data) == ((void *)0)) + all_data = p; + else { + while (q->link != ((void *)0)) + q = q->link; + q->link = p; + } +} + +static void parse_tbl(char *buffer) { + char *s = buffer; + char *t = s + strlen(s); + + do { + t--; + if (((*__ctype_b_loc())[(int)(((int)*t))] & (unsigned short int)_ISspace)) + *t = '\0'; + else + break; + } while (t > s); + while (((*__ctype_b_loc())[(int)(((int)*s))] & (unsigned short int)_ISspace)) + s++; + buffer = s; + + line_no++; + if (*buffer != ';' && *buffer != '\0') { + if (*buffer == '#') { + store_data(buffer, ""); /* { dg-bogus "leak" "PR analyzer/107158" { xfail *-*-* } } */ + } else { + + while (*s && !((*__ctype_b_loc())[(int)(((int)*s))] & + (unsigned short int)_ISspace)) + s++; + while ( + ((*__ctype_b_loc())[(int)(((int)*s))] & (unsigned short int)_ISspace)) + *s++ = '\0'; + store_data(buffer, s); /* { dg-bogus "leak" "PR analyzer/107158" { xfail *-*-* } } */ + } + } +} -- 2.26.3