From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D09F9C43460 for ; Mon, 17 May 2021 14:35:04 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 552F7613AC for ; Mon, 17 May 2021 14:35:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 552F7613AC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:43288 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lieKl-00070T-Cu for qemu-devel@archiver.kernel.org; Mon, 17 May 2021 10:35:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57330) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lieGp-0007P2-D8 for qemu-devel@nongnu.org; Mon, 17 May 2021 10:30:59 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:36666) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lieGn-0000Lv-DF for qemu-devel@nongnu.org; Mon, 17 May 2021 10:30:59 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1621261856; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=g7oC5YC2ddXurDtf32pdmsWcpmxGMGoSxNpuKz3zs50=; b=G2wlbcMjeUWIB53CemKkYMa0DW/GIwC+Jdgwdttv5Bk7KpEeChi0l/82WEpDiZQsgVM0rJ UUK977XNd4qOBxcuQLsb6JM7db5Gnhe7lyPX4Yo/UBDPiLYqp8JMXE/VvhlvpdfAfehGNN JQSPrWr28/LvtNSJpYHl4utdLYH/Q0k= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-491-0tb-MeWFNZK1JZSklb6QPg-1; Mon, 17 May 2021 10:30:55 -0400 X-MC-Unique: 0tb-MeWFNZK1JZSklb6QPg-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 9D45F108C2AE; Mon, 17 May 2021 14:30:53 +0000 (UTC) Received: from t480s.redhat.com (ovpn-115-101.ams2.redhat.com [10.36.115.101]) by smtp.corp.redhat.com (Postfix) with ESMTP id 133D65E278; Mon, 17 May 2021 14:30:29 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Subject: [PATCH v2 23/26] softfloat: Implement float128_(min|minnum|minnummag|max|maxnum|maxnummag) Date: Mon, 17 May 2021 16:27:36 +0200 Message-Id: <20210517142739.38597-24-david@redhat.com> In-Reply-To: <20210517142739.38597-1-david@redhat.com> References: <20210517142739.38597-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=david@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=216.205.24.124; envelope-from=david@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.374, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Thomas Huth , David Hildenbrand , Cornelia Huck , Richard Henderson , Halil Pasic , Christian Borntraeger , qemu-s390x@nongnu.org, =?UTF-8?q?Alex=20Benn=C3=A9e?= , Aurelien Jarno Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" With Richard's softfloat rework, the float128 implementation is straight-forward. Unfortuantely, we don't have any tests we can simply adjust/unlock. Cc: Aurelien Jarno Cc: Peter Maydell Cc: "Alex Bennée" Cc: Richard Henderson Signed-off-by: David Hildenbrand --- fpu/softfloat.c | 17 +++++++++++++++++ include/fpu/softfloat.h | 6 ++++++ 2 files changed, 23 insertions(+) diff --git a/fpu/softfloat.c b/fpu/softfloat.c index 7376b3470c..bfe5a6b975 100644 --- a/fpu/softfloat.c +++ b/fpu/softfloat.c @@ -3893,6 +3893,22 @@ static float64 float64_minmax(float64 a, float64 b, float_status *s, int flags) return which ? b : a; } +static float128 float128_minmax(float128 a, float128 b, float_status *s, + int flags) +{ + FloatParts128 pa, pb; + int which; + + float128_unpack_canonical(&pa, a, s); + float128_unpack_canonical(&pb, b, s); + which = parts_minmax(&pa, &pb, s, flags, &float64_params); + if (unlikely(which < 0)) { + /* Some sort of nan, need to repack default and silenced nans. */ + return float128_round_pack_canonical(&pa, s); + } + return which ? b : a; +} + #define MINMAX_1(type, name, flags) \ type type##_##name(type a, type b, float_status *s) \ { return type##_minmax(a, b, s, flags); } @@ -3909,6 +3925,7 @@ MINMAX_2(float16) MINMAX_2(bfloat16) MINMAX_2(float32) MINMAX_2(float64) +MINMAX_2(float128) #undef MINMAX_1 #undef MINMAX_2 diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h index 94f7841b9f..ec7dca0960 100644 --- a/include/fpu/softfloat.h +++ b/include/fpu/softfloat.h @@ -1204,6 +1204,12 @@ float128 float128_rem(float128, float128, float_status *status); float128 float128_sqrt(float128, float_status *status); FloatRelation float128_compare(float128, float128, float_status *status); FloatRelation float128_compare_quiet(float128, float128, float_status *status); +float128 float128_min(float128, float128, float_status *status); +float128 float128_max(float128, float128, float_status *status); +float128 float128_minnum(float128, float128, float_status *status); +float128 float128_maxnum(float128, float128, float_status *status); +float128 float128_minnummag(float128, float128, float_status *status); +float128 float128_maxnummag(float128, float128, float_status *status); bool float128_is_quiet_nan(float128, float_status *status); bool float128_is_signaling_nan(float128, float_status *status); float128 float128_silence_nan(float128, float_status *status); -- 2.31.1