--- Comment #14 from burnus at gcc dot gnu dot org 2006-10-29 11:58 ---
For completeness, the two problems are in the meanwhile fixed in glibc:
- csqrt bug, fixed 2005-10-13,
http://sources.redhat.com/bugzilla/show_bug.cgi?id=1466
- cacosh bug, fixed 2006-08-03,
http://sources.redhat.c
--- Comment #13 from burnus at gcc dot gnu dot org 2006-10-29 11:57 ---
Subject: Bug 24313
Author: burnus
Date: Sun Oct 29 11:56:56 2006
New Revision: 118142
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=118142
Log:
2006-10-28 Tobias Burnus <[EMAIL PROTECTED]>
PR libg
--- Comment #12 from harald dot vogt at desy dot de 2006-01-25 21:07
---
(In reply to comment #9)
> Patch for libgfortran
>
> http://gcc.gnu.org/ml/gcc-patches/2005-10/msg00626.html
>
It is a useful strategy to use libm but...
It seems that glibc has still problems with csqrt. See a
--- Comment #11 from pinskia at gcc dot gnu dot org 2005-11-24 16:41
---
*** Bug 25017 has been marked as a duplicate of this bug. ***
--
pinskia at gcc dot gnu dot org changed:
What|Removed |Added
-
--- Comment #10 from cvs-commit at gcc dot gnu dot org 2005-10-11 23:35
---
Subject: Bug 24313
CVSROOT:/cvs/gcc
Module name:gcc
Changes by: [EMAIL PROTECTED] 2005-10-11 23:35:27
Modified files:
libgfortran: ChangeLog
libgfortran/intrinsics: c
--- Comment #9 from kargl at gcc dot gnu dot org 2005-10-11 20:46 ---
Patch for libgfortran
http://gcc.gnu.org/ml/gcc-patches/2005-10/msg00626.html
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24313
--- Comment #8 from kargl at gcc dot gnu dot org 2005-10-11 20:21 ---
Yes, I agree glibc has the bug. But, libgfortran also has the bug
and will be present on every OS that does not have a libm with csqrt
and csqrtf. I have a patch for libgfortran.
--
http://gcc.gnu.org/bugzilla/s
--- Comment #7 from pinskia at gcc dot gnu dot org 2005-10-11 20:18 ---
(In reply to comment #6)
> FreeBSD *does not* have a csqrt or csqrtf in libm! The problem is
> in intrinsics/c99_functions.c. I'm testing a patch.
But if csqrtf in c99_functions.c was pulled from glibc, then there
--- Comment #6 from kargl at gcc dot gnu dot org 2005-10-11 20:11 ---
FreeBSD *does not* have a csqrt or csqrtf in libm! The problem is
in intrinsics/c99_functions.c. I'm testing a patch.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24313
--- Comment #5 from pinskia at gcc dot gnu dot org 2005-10-11 19:58 ---
(In reply to comment #4)
> Note the use of __builtin_csqrtf().
But that just calls into csqrt which is part of libm. Look at the asm output.
--
pinskia at gcc dot gnu dot org changed:
What|Remov
--- Comment #4 from kargl at gcc dot gnu dot org 2005-10-11 19:56 ---
This is definitely a gcc bug.
gfortran -fdump-tree-original csqrt.f
yields (with removal of IO crap and shorting of long constants)
MAIN__ ()
{
complex4 y;
complex4 x;
x = __complex__ (0.0, -1.0e+0);
y = _
--- Comment #3 from kargl at gcc dot gnu dot org 2005-10-11 18:48 ---
I don't think this is a glibc problem. gfortran will use a GCC
builtin function. See gcc/fortran/mathbuiltins.def To confirm
this, I get
troutmask:kargl[210] ./z
( 0.00, -1.00) (-0.7071068, 0
--- Comment #2 from pinskia at gcc dot gnu dot org 2005-10-11 17:33 ---
This is a bug in glibc's csqrt as gfortran just calls it. Please report it to
them.
--
pinskia at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #1 from pinskia at gcc dot gnu dot org 2005-10-11 17:31 ---
Hmm, I think this is a bug in glibc's csqrt. as I get the following on
powerpc-darwin:
( 0.00, -1.00) ( 0.7071068,-0.7071068)
( 9.994E-39, -1.00) ( 0.7071068,-0.7071068)
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