Date: Thu, 15 Jul 1999 21:54:15 -0700 (PDT) From: John Polstra <jdp@polstra.com> To: Doug Rabson <dfr@nlsystems.com> Cc: alpha@freebsd.org, simokawa@sat.t.u-tokyo.ac.jp Subject: Re: alpha/12623: strtod(3) FPE on alphaev56 Message-ID: <XFMail.990715215415.jdp@polstra.com> In-Reply-To: <Pine.BSF.4.10.9907140754120.58023-100000@salmon.nlsystems.com>
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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
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