From: hjl@lucon.org (H.J. Lu)
To: zack@rabi.phys.columbia.edu (Zack Weinberg)
Cc: drepper@cygnus.com, libc-linux@gnu.org, egcs@cygnus.com
Subject: Re: Who is fixing libm-ieee754?
Date: Sat, 21 Feb 1998 17:50:00 -0000 [thread overview]
Message-ID: <m0y6QYr-00058gC@ocean.lucon.org> (raw)
In-Reply-To: <199802220053.TAA29191@rabi.phys.columbia.edu>
>
>
> In case it helps anyone -
>
> I ran the ELEFUNT elementary function tests against the math libraries
> from libc 5 and 6. I don't really know how to interpret them, but
> they're at ftp://rabi.phys.columbia.edu/pub/elefunt.shar . I used egcs
> 1.0.1's C compiler in combination with f2c from the Netlib archive.
>
> The single precision tests probably didn't test libc6's true single
> precision math functions.
>
I believe egcs 1.0.2 has some serious bugs on x86 when fp is
used. It miscompiled libm-ieee754 in glibc 2.1 when -O2 is used.
I will try to come up with a small test case to show it.
--
H.J. Lu (hjl@gnu.org)
next parent reply other threads:[~1998-02-21 17:50 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <199802220053.TAA29191@rabi.phys.columbia.edu>
1998-02-21 17:50 ` H.J. Lu [this message]
1998-02-21 18:55 ` A patch for libm-ieee754 H.J. Lu
1998-02-22 7:42 ` Andreas Jaeger
1998-02-22 13:03 ` Toon Moene
1998-02-22 13:33 ` Ulrich Drepper
1998-02-22 13:42 ` Andreas Jaeger
1998-02-22 18:18 ` Geoffrey KEATING
1998-02-22 18:39 ` David Edelsohn
1998-02-22 19:30 ` Geoffrey KEATING
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