From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 102343858429; Thu, 11 Aug 2022 11:26:45 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 102343858429 From: "fxcoudert at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/106579] ieee_signaling_nan problem in fortran on powerpc64 Date: Thu, 11 Aug 2022 11:26:44 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: fortran X-Bugzilla-Version: 13.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: fxcoudert at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status everconfirmed cf_reconfirmed_on Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 11 Aug 2022 11:26:45 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106579 Francois-Xavier Coudert changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever confirmed|0 |1 Last reconfirmed| |2022-08-11 --- Comment #5 from Francois-Xavier Coudert = --- Previous discussion on the list: - when I first implemented it in 2013: https://gcc.gnu.org/legacy-ml/gcc/2013-11/msg00109.html - more recent: https://www.mail-archive.com/gcc@gcc.gnu.org/msg97340.html I think Joseph pointed (either in another bugzilla issue, or on the list) t= o a first tentative implementation of __builtin_issignaling in the middle-end by Sandra Loosemore, which had to be reversed because it caused trouble on some targets. The difficulty that was cited (and why I didn't get to it myself) = is the large number of floating-point formats to be handled. That said, having __builtin_issignaling() would be great and we could emit a lot more of the IEEE functions in the front-end, if it were available.=