From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2001:67c:2178:6::1c]) by sourceware.org (Postfix) with ESMTPS id 9C8953857344 for ; Tue, 23 Aug 2022 12:30:58 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 9C8953857344 Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 7F03A336D1 for ; Tue, 23 Aug 2022 12:30:57 +0000 (UTC) Received: from wotan.suse.de (wotan.suse.de [10.160.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by relay2.suse.de (Postfix) with ESMTPS id 78ED72C141 for ; Tue, 23 Aug 2022 12:30:57 +0000 (UTC) Date: Tue, 23 Aug 2022 12:30:56 +0000 (UTC) From: Richard Biener To: gcc-patches@gcc.gnu.org Subject: [PATCH] New uninit testcase User-Agent: Alpine 2.22 (LSU 394 2020-01-19) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Spam-Status: No, score=-10.6 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, MISSING_MID, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE 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-List-Received-Date: Tue, 23 Aug 2022 12:31:00 -0000 Message-ID: <20220823123056.Gdi1TUAGRWJN9gW6u80pGr6_LbeHOlUso6sceUDp5vg@z> I've reduced the following which doesn't seem covered in a good enough way in the testsuite. Pushed. * gcc.dg/uninit-pred-10.c: New testcase. --- gcc/testsuite/gcc.dg/uninit-pred-10.c | 36 +++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/uninit-pred-10.c diff --git a/gcc/testsuite/gcc.dg/uninit-pred-10.c b/gcc/testsuite/gcc.dg/uninit-pred-10.c new file mode 100644 index 00000000000..468b4d3ad4b --- /dev/null +++ b/gcc/testsuite/gcc.dg/uninit-pred-10.c @@ -0,0 +1,36 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -Wuninitialized" } */ + +enum demangle_component_type { + DEMANGLE_COMPONENT_NAME, + DEMANGLE_COMPONENT_REFERENCE +}; +struct demangle_component { + enum demangle_component_type type; +} d_print_comp_inner_mod_inner, *d_print_comp_inner_dc; +struct d_print_mod { + struct d_print_mod *next; +}; +struct d_print_info { + int templates; + struct d_print_mod *modifiers; +}; +void d_print_comp_inner(struct d_print_info *dpi) +{ + int saved_templates, need_template_restore = 0; + switch (d_print_comp_inner_dc->type) { + case DEMANGLE_COMPONENT_NAME: + goto modifier; + case DEMANGLE_COMPONENT_REFERENCE: + saved_templates = dpi->templates; + need_template_restore = 1; + modifier: + struct d_print_mod dpm; + dpm.next = dpi->modifiers; + d_print_comp_inner_mod_inner = *d_print_comp_inner_dc; + d_print_comp_inner(dpi); + dpi->modifiers = dpm.next; + if (need_template_restore) + dpi->templates = saved_templates; /* { dg-bogus "uninitialized" } */ + } +} -- 2.35.3