From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from troutmask.apl.washington.edu (troutmask.apl.washington.edu [128.95.76.21]) by sourceware.org (Postfix) with ESMTPS id 2AF37385BF85 for ; Tue, 25 Jan 2022 20:20:31 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 2AF37385BF85 Received: from troutmask.apl.washington.edu (localhost [127.0.0.1]) by troutmask.apl.washington.edu (8.16.1/8.16.1) with ESMTPS id 20PKKTbA070015 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Tue, 25 Jan 2022 12:20:29 -0800 (PST) (envelope-from sgk@troutmask.apl.washington.edu) Received: (from sgk@localhost) by troutmask.apl.washington.edu (8.16.1/8.16.1/Submit) id 20PKKT5H070014; Tue, 25 Jan 2022 12:20:29 -0800 (PST) (envelope-from sgk) Date: Tue, 25 Jan 2022 12:20:29 -0800 From: Steve Kargl To: FX Cc: fortran@gcc.gnu.org Subject: Re: New signaling NaN causes 12 testsuite failures Message-ID: <20220125202029.GD69322@troutmask.apl.washington.edu> References: <20220125004453.GA16729@troutmask.apl.washington.edu> <20220125024811.GA19308@troutmask.apl.washington.edu> <93B4F458-9AD2-44DA-9F21-37B16C4A0CE8@gmail.com> <20220125195928.GB69322@troutmask.apl.washington.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS, KAM_LAZY_DOMAIN_SECURITY, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=no autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: fortran@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Fortran mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Jan 2022 20:20:32 -0000 On Tue, Jan 25, 2022 at 09:04:05PM +0100, FX wrote: > This is x86_64-linux, with the same source: > > $ gcc-10 v.c -fsignaling-nans && ./a.out > Quiet NaN > nan 7fc00000 > nan 7ff8000000000000 > nan 564e29277fffc000000000000000 > Signaling NaN > nan 7fa00000 > nan 7ff4000000000000 > nan 564e29277fffa000000000000000 > So the 7fffc and 7fffa signatures are equivalent to what I see on FreeBSD (never seen the 564e2927 string before). Maybe an off-by-one bit in issignaling_fallback.h? -- Steve