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 [170.10.133.124]) by sourceware.org (Postfix) with ESMTPS id 5B0CA3858D35 for ; Mon, 8 Jan 2024 13:20:19 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 5B0CA3858D35 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=redhat.com ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 5B0CA3858D35 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1704720020; cv=none; b=Im1QC8673QS5BmFMal7v3SxAtM7mLH7511hJei0sn2PuKIRQPL2xCepeYmF9jUl72FtjiB2+S6xAvX2CoIy2F7IXIpkoSxyVBoDSDTSnm7Ri+U7VLDuQW1bMyWSpuLcixbrTaruA1NEWuWOP7BkgFhqAqk57SQk0m0jd4b/W/qw= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1704720020; c=relaxed/simple; bh=x7k9OrkR8kccXcvRor7zdiz9v0StEuczidm5zAtD93Q=; h=DKIM-Signature:Date:From:To:Subject:Message-ID:MIME-Version; b=it0YiIDfb9ee/l6dPJXcpID/gpVeOQK8kyrz2tGxAdpRSKy0bxghnNqLBZ+aKqSOzBXZ33/sxeW3nC+ERotGahY7TZnl2iqaMD9N20fB6hld5xAv+xnJehaFfMFyjhkj+nojFO5JoiKZPWKe2eRWmSG5luDQH9hNA/gczqq5C9o= ARC-Authentication-Results: i=1; server2.sourceware.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1704720019; 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=r39+3ex1kI2JPgZrhtPV5vrtGIdWUsuamMyjYCZKf1E=; b=EaY9jv/lWZTjNuI1VhvOAkQ/LxwbYZE0qYd6iVGC+lJvaQ+bpm29qB7BOQw+vlfxWyMyNV 81RM95F6wEFC7QQcjIcM/KvvFc4zgSYWb48+mxc21mmLBtLxwPCo+vcmqUhnTd4k1Adv2/ gUJlUBtV1JB7G1BeuOlHL15lNluAQtI= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-320-QTqZIak_MraplK4ONOOOGg-1; Mon, 08 Jan 2024 08:20:15 -0500 X-MC-Unique: QTqZIak_MraplK4ONOOOGg-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id B0C298910CF; Mon, 8 Jan 2024 13:20:09 +0000 (UTC) Received: from tucnak.zalov.cz (unknown [10.39.192.92]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 721B62027046; Mon, 8 Jan 2024 13:20:09 +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 408DK6XV2822958 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Mon, 8 Jan 2024 14:20:07 +0100 Received: (from jakub@localhost) by tucnak.zalov.cz (8.17.1/8.17.1/Submit) id 408DK5kg2822957; Mon, 8 Jan 2024 14:20:05 +0100 Date: Mon, 8 Jan 2024 14:20:05 +0100 From: Jakub Jelinek To: Richard Ball Cc: "gcc-patches@gcc.gnu.org" , Richard Earnshaw , Richard Sandiford , Marcus Shawcroft , Kyrylo Tkachov Subject: Re: [PATCH v4] aarch64: SVE/NEON Bridging intrinsics Message-ID: Reply-To: Jakub Jelinek References: <3caeab7f-c38f-4640-bc51-d8245c05c860@arm.com> MIME-Version: 1.0 In-Reply-To: <3caeab7f-c38f-4640-bc51-d8245c05c860@arm.com> X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.4 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=-4.5 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,KAM_SHORT,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE,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 List-Id: On Mon, Dec 11, 2023 at 03:13:03PM +0000, Richard Ball wrote: > ACLE has added intrinsics to bridge between SVE and Neon. > > The NEON_SVE Bridge adds intrinsics that allow conversions between NEON and > SVE vectors. > > This patch adds support to GCC for the following 3 intrinsics: > svset_neonq, svget_neonq and svdup_neonq This broke PCH on aarch64, see https://gcc.gnu.org/PR113270 Given that the tree pointers are no longer GC marked, bet it results in random crashes elsewhere too even when not using PCH. Jakub