From patchwork Mon Nov 14 11:43:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jakub Jelinek X-Patchwork-Id: 1703524 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=8.43.85.97; helo=sourceware.org; envelope-from=gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=) Authentication-Results: legolas.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=rGbFzgTH; dkim-atps=neutral Received: from sourceware.org (server2.sourceware.org [8.43.85.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4N9nX35Z3yz20KC for ; Mon, 14 Nov 2022 22:44:00 +1100 (AEDT) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id B30713858412 for ; Mon, 14 Nov 2022 11:43:57 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B30713858412 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1668426237; bh=yIGwUJDzYvCIW+XVUCv/wSEzZ73GM5O9MG5VOktg82E=; h=Date:To:Cc:Subject:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From:Reply-To:From; b=rGbFzgTHQrwgwhjWy2/V56Kv1nqMR75w5pWCNhTj8QwBkPBfiwMzSYDNcPjWG0gG0 c2/8acRelnWn0DRU+F7JU6CDFgJm6ncLyli+8F3wzkIVh3ZKXu/E+1pgwRh4RX1Q/B 4VZfy2Nzya3+POdSPR/Q3+2h3IP6UsdbQWJhEW2M= 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 [170.10.133.124]) by sourceware.org (Postfix) with ESMTPS id 7EB073858421 for ; Mon, 14 Nov 2022 11:43:36 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 7EB073858421 Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-330-RMvuF71BOsemU8vQRcfaQw-1; Mon, 14 Nov 2022 06:43:35 -0500 X-MC-Unique: RMvuF71BOsemU8vQRcfaQw-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id B9C453815D30 for ; Mon, 14 Nov 2022 11:43:34 +0000 (UTC) Received: from tucnak.zalov.cz (unknown [10.39.192.38]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 5B30239D6A; Mon, 14 Nov 2022 11:43:34 +0000 (UTC) Received: from tucnak.zalov.cz (localhost [127.0.0.1]) by tucnak.zalov.cz (8.17.1/8.17.1) with ESMTPS id 2AEBhTld2841938 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Mon, 14 Nov 2022 12:43:29 +0100 Received: (from jakub@localhost) by tucnak.zalov.cz (8.17.1/8.17.1/Submit) id 2AEBhSse2841937; Sun, 13 Nov 2022 23:43:28 -1200 Date: Sun, 13 Nov 2022 23:43:28 -1200 To: Jason Merrill Cc: gcc-patches@gcc.gnu.org Subject: [PATCH] c++: Add testcase for DR 2604 Message-ID: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline X-Spam-Status: No, score=-3.6 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, KAM_NUMSUBJECT, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=no 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: Jakub Jelinek via Gcc-patches From: Jakub Jelinek Reply-To: Jakub Jelinek Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" Hi! Working virtually out of Baker Island. As the following testcase shows, I think we don't inherit template's attributes into specializations. Tested on x86_64-linux, ok for trunk? 2022-11-13 Jakub Jelinek * g++.dg/DRs/dr2604.C: New test. Jakub --- gcc/testsuite/g++.dg/DRs/dr2604.C.jj 2022-11-13 23:39:45.725712300 -1200 +++ gcc/testsuite/g++.dg/DRs/dr2604.C 2022-11-13 23:39:38.712807673 -1200 @@ -0,0 +1,53 @@ +// DR 2604 - Attributes for an explicit specialization. +// { dg-do compile { target c++11 } } +// { dg-options "-Wunused-parameter" } + +template +[[noreturn]] void +foo ([[maybe_unused]] int i) +{ + for (;;); +} + +template<> +void +foo (int i) // { dg-warning "unused parameter 'i'" } +{ +} + +template +void +bar (int i) // { dg-warning "unused parameter 'i'" } +{ +} + +template<> +[[noreturn]] void +bar ([[maybe_unused]] int i) +{ + for (;;); +} + +[[noreturn]] void +baz () +{ + foo (0); +} + +[[noreturn]] void +qux () +{ + foo (0); +} // { dg-warning "'noreturn' function does return" } + +[[noreturn]] void +garply () +{ + bar (0); +} // { dg-warning "'noreturn' function does return" } + +[[noreturn]] void +corge () +{ + bar (0); +}