From: "Ismail Dönmez" <ismail@pardus.org.tr>
To: gcc@gcc.gnu.org
Subject: glibc 2.7 complex functions are possibly miscompiled by gcc 4.3 trunk
Date: Sat, 22 Dec 2007 18:14:00 -0000 [thread overview]
Message-ID: <200712221911.32786.ismail@pardus.org.tr> (raw)
Hi all,
I am doing glibc 4.3 regression tests using gcc 4.3 trunk nearly every day and
I see 3 tests fail :
math/test-float
math/test-ildoubl
math/test-ifloat
The erorrs are all similar :
Failure: Test: Imaginary part of: cacosh (-0 + 0 i) == 0.0 + pi/2 i
Result:
is: 0.00000000000000000000e+00 0x0.00000000000000000000p+0
should be: 1.57079637050628662109e+00 0x1.921fb600000000000000p+0
difference: 1.57079637050628662109e+00 0x1.921fb600000000000000p+0
ulp : 13176795.0000
max.ulp : 0.0000
All of the imaginary part checks fail, with the help of GFortran maintainers
we identified 2 testcases which fail with glibc 2.7 when compiled with gcc
4.3 trunk [0] .
This problem also causes 32 unexpected failures on gfortran regression tests.
So I wonder if you guys can help me debug this, I checked out libc sources
but its mostly assembly stuff for math functions. Maybe Jakub has an idea,
not sure.
Any help/comment appreciated.
[0] http://sourceware.org/bugzilla/show_bug.cgi?id=5490
Regards,
ismail
--
Never learn by your mistakes, if you do you may never dare to try again.
next reply other threads:[~2007-12-22 17:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-22 18:14 Ismail Dönmez [this message]
2007-12-28 22:47 ` Ismail Dönmez
2007-12-29 6:32 ` Ismail Dönmez
2007-12-29 17:49 ` Ismail Dönmez
2007-12-29 18:12 ` Ian Lance Taylor
2007-12-29 18:23 ` Ismail Dönmez
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