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 33A273858D20 for ; Mon, 7 Nov 2022 12:43:51 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 33A273858D20 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=1667825030; 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=R1Ia8tH768Cnne6/lEei4Q21ViO15H4bQvX52DS7BME=; b=FRTukK5FemvUWjeozIpbTnDb3MTQtk/jn4WSvr1pbXbg7pcmlelZKTgzvN2CIIgE3/mubo 5s7tPIXAtsmBrJVkM1x0fKQtWIFCgXySzIFHPXX2D1kBHCMuz7//TqLYPKXjKNRd9UpRXo HOVJLg3rkk0etE9SmBaXKPgMCl2HgT4= 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-497-6KDSVppSMqCHGmc5Utctqg-1; Mon, 07 Nov 2022 07:43:49 -0500 X-MC-Unique: 6KDSVppSMqCHGmc5Utctqg-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 79E77185A79C for ; Mon, 7 Nov 2022 12:43:49 +0000 (UTC) Received: from tucnak.zalov.cz (unknown [10.39.193.252]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 3967F2166B29; Mon, 7 Nov 2022 12:43:48 +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 2A7Chkht378649 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Mon, 7 Nov 2022 13:43:46 +0100 Received: (from jakub@localhost) by tucnak.zalov.cz (8.17.1/8.17.1/Submit) id 2A7ChjKF378648; Mon, 7 Nov 2022 13:43:45 +0100 Date: Mon, 7 Nov 2022 13:43:45 +0100 From: Jakub Jelinek To: Aldy Hernandez Cc: "MacLeod, Andrew" , GCC patches Subject: Re: [PATCH] [PR24021] Implement PLUS_EXPR range-op entry for floats. Message-ID: Reply-To: Jakub Jelinek References: <20221013123649.474497-1-aldyh@redhat.com> MIME-Version: 1.0 In-Reply-To: X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 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=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, Nov 07, 2022 at 01:35:35PM +0100, Aldy Hernandez wrote: > Let me see if I understand you correctly... > > real_isdenormal is always returning false for our uses in frange? So > instead of using real_isdenormal in flush_denormals_to_zero, perhaps > we should be using: > > REAL_EXP (r) < REAL_MODE_FORMAT (mode)->emin > > ?? > > Could we perhaps make real_isdenormal always work for all values? Is > that possible? Yes. Or have real_isdenormal_target for the uses in real.cc which would be private to real.cc and would do what real_isdenormal currently does, and then real_isdenormal with the above definition (well, r->cl == rvc_normal && ...). Jakub