--- Comment #30 from tkoenig at gcc dot gnu dot org 2009-12-05 21:53
---
(In reply to comment #29)
> Probably fixed by the commit of PR 40643 comment 7
>
> Author: jakub
> Date: Fri Jul 24 07:57:13 2009
> New Revision: 150041
>
> URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=1
--- Comment #29 from burnus at gcc dot gnu dot org 2009-07-24 08:21 ---
Probably fixed by the commit of PR 40643 comment 7
Author: jakub
Date: Fri Jul 24 07:57:13 2009
New Revision: 150041
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=150041
Log:
PR fortran/40643
--- Comment #28 from burnus at gcc dot gnu dot org 2009-07-15 09:41 ---
(In reply to comment #24)
> So maybe approach the question differently. Which element in an array of NaNs
> is the smallest one and what is its value? If I pick any one element, its
> "value" is NaN. It does not m
--
fxcoudert at gcc dot gnu dot org changed:
What|Removed |Added
Target Milestone|4.2.4 |---
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30694
--- Comment #27 from jsm28 at gcc dot gnu dot org 2008-02-01 16:53 ---
4.2.3 is being released now, changing milestones of open bugs to 4.2.4.
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jsm28 at gcc dot gnu dot org changed:
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fxcoudert at gcc dot gnu dot org changed:
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AssignedTo|fxcoudert at gcc dot gnu dot|unassigned at gcc dot gnu
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--- Comment #26 from burnus at gcc dot gnu dot org 2007-10-18 18:22 ---
If I understand it correctly, there is a difference between
IEEE 754-1989 and the current draft of IEEE 754 (duped IEEE 754r), see also
http://groups.google.com/group/comp.lang.fortran/browse_thread/thread/33055faef5
--- Comment #25 from fxcoudert at gcc dot gnu dot org 2007-10-18 07:38
---
(In reply to comment #24)
> So maybe approach the question differently. Which element in an array of NaNs
> is the smallest one and what is its value? If I pick any one element, its
> "value" is NaN. It does n
--- Comment #24 from jvdelisle at gcc dot gnu dot org 2007-10-18 00:18
---
Ok for hypot, and that may make sense knowing the nature of the function.
Minval is not a complex or transcendental function. I should not write in
loose general terms.
So maybe approach the question different
--- Comment #23 from kargl at gcc dot gnu dot org 2007-10-17 23:57 ---
(In reply to comment #22)
> Well this is just one little opinion:
>
> There is no way that it is realistic to get a valid number out of a NaN
> or a group of NaNs. It can only be NaN.
Read the hypot man page.
--- Comment #22 from jvdelisle at gcc dot gnu dot org 2007-10-17 23:49
---
Well this is just one little opinion:
There is no way that it is realistic to get a valid number out of a NaN
or a group of NaNs. It can only be NaN. It's like a place from which there is
no return. Maybe we
--- Comment #21 from fxcoudert at gcc dot gnu dot org 2007-10-17 22:32
---
I've been thinking about MINVAL((/NaN,NaN/)), ie minval of an array containing
only NaNs, over and over again, and it's a tough choice. Here's what compilers
currently output for MINVAL and MAXVAL:
Intel: Inf, -
--- Comment #20 from mmitchel at gcc dot gnu dot org 2007-10-09 19:22
---
Change target milestone to 4.2.3, as 4.2.2 has been released.
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mmitchel at gcc dot gnu dot org changed:
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fxcoudert at gcc dot gnu dot org changed:
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AssignedTo|unassigned at gcc dot gnu |fxcoudert at gcc dot gnu dot
|dot org
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mmitchel at gcc dot gnu dot org changed:
What|Removed |Added
Target Milestone|4.2.1 |4.2.2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30694
--- Comment #19 from pault at gcc dot gnu dot org 2007-06-21 18:12 ---
(In reply to comment #18)
> Due to huge time constraints, I won't be able to
> do anything with this for the next few weeks. Unassigning
> myself for the time.
> If anybody wants to look over my partial patch and fly
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tkoenig at gcc dot gnu dot org changed:
What|Removed |Added
AssignedTo|tkoenig at gcc dot gnu dot |unassigned at gcc dot gnu
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--- Comment #18 from tkoenig at gcc dot gnu dot org 2007-06-15 18:55
---
Due to huge time constraints, I won't be able to
do anything with this for the next few weeks. Unassigning
myself for the time.
If anybody wants to look over my partial patch and fly with it,
he's welcome :-)
--
--- Comment #17 from tkoenig at gcc dot gnu dot org 2007-05-17 14:40
---
Created an attachment (id=13569)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13569&action=view)
partial implementation
Here's a partial implementation that seems to get
things right for the (min)|(max)loc0
--- Comment #16 from mmitchel at gcc dot gnu dot org 2007-05-14 22:26
---
Will not be fixed in 4.2.0; retargeting at 4.2.1.
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mmitchel at gcc dot gnu dot org changed:
What|Removed |Added
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--- Comment #15 from tkoenig at gcc dot gnu dot org 2007-04-19 21:03
---
(In reply to comment #14)
> (In reply to comment #13)
> > The tree stuff is hard, btw. Still trying :-)
>
> Tree stuff? Do we generate inline code?
We generate inline code for rank 0 minval and minloc, i.e.
r
--- Comment #14 from fxcoudert at gcc dot gnu dot org 2007-04-18 22:59
---
(In reply to comment #13)
> The tree stuff is hard, btw. Still trying :-)
Tree stuff? Do we generate inline code?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30694
--- Comment #13 from tkoenig at gcc dot gnu dot org 2007-04-15 22:12
---
(In reply to comment #12)
> Now all that's left is to translate that into C and tree representations :-)
The tree stuff is hard, btw. Still trying :-)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30694
--- Comment #12 from tkoenig at gcc dot gnu dot org 2007-04-10 20:58
---
Created an attachment (id=13350)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13350&action=view)
Sample implementation
This is how I would the implementation of minloc to behave,
shown as a sample implement
--- Comment #11 from tkoenig at gcc dot gnu dot org 2007-03-25 22:04
---
I'll give this a shot.
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tkoenig at gcc dot gnu dot org changed:
What|Removed |Added
As
--- Comment #10 from fxcoudert at gcc dot gnu dot org 2007-03-25 11:49
---
$ cat nan.f90
real :: nan, x
x = 7.2
nan = 0.0
nan = nan / nan
print *, minval((/ nan, x /)), maxval((/ nan, x /))
print *, minval((/ nan /)), maxval((/ nan /))
print *, minloc((/ nan
--- Comment #9 from fxcoudert at gcc dot gnu dot org 2007-02-14 20:21
---
We should fix {MIN,MAX}{VAL,LOC} for NaNs, as well as infinities. See
http://groups.google.com/group/comp.lang.fortran/browse_frm/thread/e3745c39a11522c5
for details
--
http://gcc.gnu.org/bugzilla/show_bug.cg
--- Comment #8 from tkoenig at gcc dot gnu dot org 2007-02-07 17:54 ---
> The status of the other patch is: Waiting for review.
> http://gcc.gnu.org/ml/gcc-patches/2007-02/msg00260.html
I can't do any regression-testing right now, because PR 30678 :-(
--
http://gcc.gnu.org/bugzill
--- Comment #7 from burnus at gcc dot gnu dot org 2007-02-06 12:30 ---
> I don't know what the status is of the other patch for MAXVAL/MINVAL, but we
> should probably combine them into a single patch (in particular to ease the
> backporting).
The status of the other patch is: Waiting fo
--- Comment #6 from fxcoudert at gcc dot gnu dot org 2007-02-06 12:12
---
(In reply to comment #5)
> Min/maxval should return (for REAL):
> +INF if there is an INF in the maxval argument array
> -INF if there is a -INF in the minval argument array
> NAN if the argument array only con
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