From owner-freebsd-alpha Thu Jul 15 21:57: 9 1999 Delivered-To: freebsd-alpha@freebsd.org Received: from wall.polstra.com (rtrwan160.accessone.com [206.213.115.74]) by hub.freebsd.org (Postfix) with ESMTP id 8630414F6A for ; Thu, 15 Jul 1999 21:57:06 -0700 (PDT) (envelope-from jdp@polstra.com) Received: from vashon.polstra.com (vashon.polstra.com [206.213.73.13]) by wall.polstra.com (8.9.3/8.9.1) with ESMTP id VAA04942; Thu, 15 Jul 1999 21:54:16 -0700 (PDT) (envelope-from jdp@polstra.com) Received: (from jdp@localhost) by vashon.polstra.com (8.9.3/8.9.1) id VAA54701; Thu, 15 Jul 1999 21:54:15 -0700 (PDT) (envelope-from jdp@polstra.com) Message-ID: X-Mailer: XFMail 1.3 [p0] on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: Date: Thu, 15 Jul 1999 21:54:15 -0700 (PDT) Organization: Polstra & Co., Inc. From: John Polstra To: Doug Rabson Subject: Re: alpha/12623: strtod(3) FPE on alphaev56 Cc: alpha@freebsd.org, simokawa@sat.t.u-tokyo.ac.jp Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Doug Rabson wrote: > On Tue, 13 Jul 1999, John Polstra wrote: > >> Yes, or the equivalent "-mieee". In my opinion, all of the libraries >> (if not the whole world) should be compiled that way. In fact, this >> option should be the default. Users who wanted a little extra speed >> and who knew what they are doing could turn it off. > > I agree (at least as far as the libraries go). Setting it as default would > be easy but there are performance implications. On the other hand, the > only applications whose performance is affected are ones using floating > point.. Yes, I think "correct by default" would be more in keeping with the FreeBSD tradition than "fast but possibly wrong by default". So I still think -mieee should be used for everything. My only real concern about making it the compiler default is that it causes us to deviate from standard egcs a little bit more. But the deviation would be confined to "egcs/config/alpha/freebsd.h", which is probably OK. I think we should add a "-mno-ieee" option to disable it, too. That's not hard. John --- John Polstra jdp@polstra.com John D. Polstra & Co., Inc. Seattle, Washington USA "No matter how cynical I get, I just can't keep up." -- Nora Ephron To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message