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 E44573857831 for ; Thu, 22 Sep 2022 13:19:40 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org E44573857831 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=suse.de Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id BFFF9219E7 for ; Thu, 22 Sep 2022 13:19:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1663852778; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc: mime-version:mime-version:content-type:content-type; bh=5mgm4AYv4Yf7N8Wb25APsENK9cifPPSjPhG8WwvEj3c=; b=HNVkV0Wf9C+6eQUMWDv8cegIDsBGofkwqXa9BD7yhjaH9y7OMWxLgPR1YxLkXkgmYHBp51 AIFuNHv5WuE3Igp1zFmAkEZQ1DsAC3HOzKjMUVVy0djB4P8Anc3pKOCrMrCqCvtrnZgErF FKcHjYr194Vgh7SJqEu1SW+YW3hgY9U= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1663852778; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc: mime-version:mime-version:content-type:content-type; bh=5mgm4AYv4Yf7N8Wb25APsENK9cifPPSjPhG8WwvEj3c=; b=rrowDcgLpZw2cdrnwn39KlDY9oSHWpFIKfLodHns83q6AWP9INox3EzFvNIb6LekDQ8KdT gANeciTe5qd/Z7BA== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id AAC0C1346B for ; Thu, 22 Sep 2022 13:19:38 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id eOdkKOpgLGPpcgAAMHmgww (envelope-from ) for ; Thu, 22 Sep 2022 13:19:38 +0000 Date: Thu, 22 Sep 2022 15:19:38 +0200 (CEST) From: Richard Biener To: gcc-patches@gcc.gnu.org Subject: [PATCH] tree-optimization/102801 - testcase for uninit diagnostic MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Message-Id: <20220922131938.AAC0C1346B@imap2.suse-dmz.suse.de> X-Spam-Status: No, score=-11.9 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,GIT_PATCH_0,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,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: The following testcase is fixed in GCC 12+ Tested on x86_64-unknown-linux-gnu, pushed. PR tree-optimization/102801 gcc/testsuite/ * g++.dg/warn/Wuninitialized-33.C: New testcase. --- gcc/testsuite/g++.dg/warn/Wuninitialized-33.C | 55 +++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 gcc/testsuite/g++.dg/warn/Wuninitialized-33.C diff --git a/gcc/testsuite/g++.dg/warn/Wuninitialized-33.C b/gcc/testsuite/g++.dg/warn/Wuninitialized-33.C new file mode 100644 index 00000000000..1bb0639ee30 --- /dev/null +++ b/gcc/testsuite/g++.dg/warn/Wuninitialized-33.C @@ -0,0 +1,55 @@ +// PR102801 +// { dg-do compile } +// { dg-require-effective-target c++17 } +// { dg-options "-O2 -Wall" } + +#include +#include +#include +#include +#include +#include + +class C { + bool b{}; // { dg-bogus "uninitialized" } + + struct Shared {}; + using SharedPtr = std::shared_ptr; + + SharedPtr shared; + +public: + C() = delete; + C(bool bIn) : b(bIn) {} + ~C(); + int someMethod() const; +}; + +using OptC = std::optional; + +class C2 { + OptC c; +public: + C2() = default; + C2(const C &cIn) : c(cIn) {} + ~C2(); + void operator()() const; + void swap(C2 &o) { std::swap(c, o.c); } +}; + + +template +class Q { + std::vector queue; +public: + void Add(std::vector &items) { + for (T & item : items) { + queue.push_back(T()); + item.swap(queue.back()); + } + } + void Exec(); +}; + +extern void foo(Q & q, std::vector &items); +void foo(Q & q, std::vector &items) { q.Add(items); q.Exec(); } -- 2.35.3