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 261033886A12 for ; Thu, 15 Dec 2022 11:50:56 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 261033886A12 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=1671105055; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:in-reply-to:in-reply-to: references:references; bh=VFx/EiddTNKgHxdktMsmo+r8vmIiPbqqQvSWXZL+88M=; b=EUhx4+hlslN/oNQe4eSitE0Pj4wrlj9g82o7SlG2lByKR+wYhk505+dGwAH7KX7dVbb+K3 FtkXKI/gmEFHxy0e+nne5cX4brhokB9LOFz08bkQiwtzOhdn1aGrtykdvYkna8zQQNgid2 diGWz2kc2YIvlHP2NqIQP9Pz5w3Mn+U= 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-317-2uUZIYhuPBeM2tJcI9u9_Q-1; Thu, 15 Dec 2022 06:50:52 -0500 X-MC-Unique: 2uUZIYhuPBeM2tJcI9u9_Q-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 B23D0101A521; Thu, 15 Dec 2022 11:50:51 +0000 (UTC) Received: from tucnak.zalov.cz (unknown [10.39.195.114]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 5390AC15BA0; Thu, 15 Dec 2022 11:50:51 +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 2BFBojNg3306206 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Thu, 15 Dec 2022 12:50:46 +0100 Received: (from jakub@localhost) by tucnak.zalov.cz (8.17.1/8.17.1/Submit) id 2BFBoiYw3306205; Thu, 15 Dec 2022 12:50:44 +0100 Date: Thu, 15 Dec 2022 12:50:44 +0100 From: Jakub Jelinek To: Iain Buclaw Cc: Thomas Schwinge , Arthur Cohen , gcc-patches@gcc.gnu.org, gcc-rust@gcc.gnu.org, joseph@codesourcery.com, Richard Biener Subject: Re: Make '-frust-incomplete-and-experimental-compiler-do-not-use' a 'Common' option (was: Rust front-end patches v4) Message-ID: Reply-To: Jakub Jelinek References: <20221206101417.778807-1-arthur.cohen@embecosm.com> <9d59ae0f-048f-dc32-6309-c8134467bbb7@embecosm.com> <87pmcla8yz.fsf@euler.schwinge.homeip.net> <87len97z4d.fsf@dem-tschwing-1.ger.mentorg.com> <1671103907.a1qdw95wgj.astroid@pulse.none> MIME-Version: 1.0 In-Reply-To: <1671103907.a1qdw95wgj.astroid@pulse.none> X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Spam-Status: No, score=-3.5 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NONE,TXREP autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On Thu, Dec 15, 2022 at 12:39:38PM +0100, Iain Buclaw wrote: > For the gdc testsuite, those warnings arise because both language files > are compiled in the same invocation (dg-additional-sources "cpp11.cpp"), > so it ends up looking something like: > > gdc -fextern-std=c++11 testcpp11.d cpp11.cpp -o testcpp11.exe > > So ruling out some sort of filtering done by the gdc driver when > delegating calls to the C/C++/D language compilers, is there a way to > get dejagnu to compile dg-additional-sources one-at-a-time? Through extra code in *.exp file certainly, invoke gdc -c cpp11.cpp -o cpp11.o and gdc -fextern-std=c++11 testcpp11.d cpp11.o -o testcpp11.exe afterwards, but for dg-additional-sources I don't think so. Maybe it would be nice to be able to pass options only to a certain gcc backend binary and not to others, similarly to how -Wa,option passes options to assembler, -Wp,option to preprocessor and -Wl,option to linker. -Wc,language,option ? Then one could gdc -Wc,d,-fextern-std=c++11 testcpp11.d cpp11.cpp -o testcpp11.exe or gccrs -Wc,rust,-frust-incomplete-and-experimental-compiler-do-not-use whatever.rs something.c -o whatever etc. If we do, one would need to use it with care, because then e.g. for gcc -Wc,c,-fsanitize=address the driver wouldn't know it should link in -lasan etc. Jakub