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* [Bug fortran/32217] New: gfortran segfaults on UNPACK with zero-sized arrays
@ 2007-06-05 7:55 highegg at gmail dot com
2007-06-05 17:30 ` [Bug fortran/32217] segfaults (at runtime) " burnus at gcc dot gnu dot org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: highegg at gmail dot com @ 2007-06-05 7:55 UTC (permalink / raw)
To: gcc-bugs
The following valid program ends up in a segfault at the UNPACK function call
with gfortran 4.3.0 20070605 (experimental binaries from gcc site):
program bug_report
implicit none
integer,parameter:: rp = kind(1.d0),na = 6
real(rp),allocatable:: hhe(:,:,:),hhc(:,:,:),dv(:)
integer:: nhh,ndv
nhh = 0
allocate(hhe(nhh,2,2))
ndv = 2*na + count(hhe /= 0)
allocate(hhc(nhh,2,2),dv(ndv))
print *,'OK'
hhc = unpack(dv(2*na+1:),hhe /= 0._rp,0._rp)
print *,'OK'
end program
Also reproducible with gfortran 4.2.0 on x86_64 and IA64.
Although the F2003 standard does not explicitly cover zero-sized arguments to
UNPACK; however, I think that from the text it follows logically that the
result should be zero-sized array. With nhh > 0, the program is working fine.
cheers to all gfortran developers,
Jaroslav Hajek
--
Summary: gfortran segfaults on UNPACK with zero-sized arrays
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: highegg at gmail dot com
GCC host triplet: i386-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32217
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug fortran/32217] segfaults (at runtime) on UNPACK with zero-sized arrays
2007-06-05 7:55 [Bug fortran/32217] New: gfortran segfaults on UNPACK with zero-sized arrays highegg at gmail dot com
@ 2007-06-05 17:30 ` burnus at gcc dot gnu dot org
2007-06-16 8:09 ` tkoenig at gcc dot gnu dot org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: burnus at gcc dot gnu dot org @ 2007-06-05 17:30 UTC (permalink / raw)
To: gcc-bugs
--
burnus at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
GCC host triplet|i386-pc-linux-gnu |
Keywords| |wrong-code
Known to fail| |4.3.0 4.2.0
Last reconfirmed|0000-00-00 00:00:00 |2007-06-05 17:30:34
date| |
Summary|gfortran segfaults on UNPACK|segfaults (at runtime) on
|with zero-sized arrays |UNPACK with zero-sized
| |arrays
Target Milestone|--- |4.3.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32217
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug fortran/32217] segfaults (at runtime) on UNPACK with zero-sized arrays
2007-06-05 7:55 [Bug fortran/32217] New: gfortran segfaults on UNPACK with zero-sized arrays highegg at gmail dot com
2007-06-05 17:30 ` [Bug fortran/32217] segfaults (at runtime) " burnus at gcc dot gnu dot org
@ 2007-06-16 8:09 ` tkoenig at gcc dot gnu dot org
2007-06-22 22:16 ` tkoenig at gcc dot gnu dot org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: tkoenig at gcc dot gnu dot org @ 2007-06-16 8:09 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from tkoenig at gcc dot gnu dot org 2007-06-16 08:09 -------
This one should be relatively easy.
I'll take it.
--
tkoenig at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |tkoenig at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2007-06-05 17:30:34 |2007-06-16 08:09:12
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32217
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug fortran/32217] segfaults (at runtime) on UNPACK with zero-sized arrays
2007-06-05 7:55 [Bug fortran/32217] New: gfortran segfaults on UNPACK with zero-sized arrays highegg at gmail dot com
2007-06-05 17:30 ` [Bug fortran/32217] segfaults (at runtime) " burnus at gcc dot gnu dot org
2007-06-16 8:09 ` tkoenig at gcc dot gnu dot org
@ 2007-06-22 22:16 ` tkoenig at gcc dot gnu dot org
2007-07-08 15:42 ` dominiq at lps dot ens dot fr
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: tkoenig at gcc dot gnu dot org @ 2007-06-22 22:16 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from tkoenig at gcc dot gnu dot org 2007-06-22 22:16 -------
Created an attachment (id=13765)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13765&action=view)
proposed patch
This fixes the test case. It'll be a while before I
can regression-test and submit this, because I'm about
to go on holiday :-)
Thomas
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32217
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug fortran/32217] segfaults (at runtime) on UNPACK with zero-sized arrays
2007-06-05 7:55 [Bug fortran/32217] New: gfortran segfaults on UNPACK with zero-sized arrays highegg at gmail dot com
` (2 preceding siblings ...)
2007-06-22 22:16 ` tkoenig at gcc dot gnu dot org
@ 2007-07-08 15:42 ` dominiq at lps dot ens dot fr
2007-07-08 21:30 ` patchapp at dberlin dot org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: dominiq at lps dot ens dot fr @ 2007-07-08 15:42 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from dominiq at lps dot ens dot fr 2007-07-08 15:42 -------
> This fixes the test case.
Confirmed on PPC Darwin7 and it passes the regression-test on this platform.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32217
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug fortran/32217] segfaults (at runtime) on UNPACK with zero-sized arrays
2007-06-05 7:55 [Bug fortran/32217] New: gfortran segfaults on UNPACK with zero-sized arrays highegg at gmail dot com
` (3 preceding siblings ...)
2007-07-08 15:42 ` dominiq at lps dot ens dot fr
@ 2007-07-08 21:30 ` patchapp at dberlin dot org
2007-07-08 22:20 ` tkoenig at gcc dot gnu dot org
2007-07-08 22:23 ` tkoenig at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: patchapp at dberlin dot org @ 2007-07-08 21:30 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from patchapp at dberlin dot org 2007-07-08 21:30 -------
Subject: Bug number PR 32217
A patch for this bug has been added to the patch tracker.
The mailing list url for the patch is
http://gcc.gnu.org/ml/gcc-patches/2007-07/msg00717.html
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32217
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug fortran/32217] segfaults (at runtime) on UNPACK with zero-sized arrays
2007-06-05 7:55 [Bug fortran/32217] New: gfortran segfaults on UNPACK with zero-sized arrays highegg at gmail dot com
` (4 preceding siblings ...)
2007-07-08 21:30 ` patchapp at dberlin dot org
@ 2007-07-08 22:20 ` tkoenig at gcc dot gnu dot org
2007-07-08 22:23 ` tkoenig at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: tkoenig at gcc dot gnu dot org @ 2007-07-08 22:20 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from tkoenig at gcc dot gnu dot org 2007-07-08 22:20 -------
Subject: Bug 32217
Author: tkoenig
Date: Sun Jul 8 22:20:04 2007
New Revision: 126469
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=126469
Log:
2007-07-08 Thomas Koenig <tkoenig@gcc.gnu.org>
PR libfortran/32217
* intrinsics/unpack_generic.c: If the destination array is
empty, return early.
2007-07-08 Thomas Koenig <tkoenig@gcc.gnu.org>
PR libfortran/32217
* gfortran.dg/unpack_zerosize_1.f90: New test case.
Added:
trunk/gcc/testsuite/gfortran.dg/unpack_zerosize_1.f90
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/libgfortran/ChangeLog
trunk/libgfortran/intrinsics/unpack_generic.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32217
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug fortran/32217] segfaults (at runtime) on UNPACK with zero-sized arrays
2007-06-05 7:55 [Bug fortran/32217] New: gfortran segfaults on UNPACK with zero-sized arrays highegg at gmail dot com
` (5 preceding siblings ...)
2007-07-08 22:20 ` tkoenig at gcc dot gnu dot org
@ 2007-07-08 22:23 ` tkoenig at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: tkoenig at gcc dot gnu dot org @ 2007-07-08 22:23 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from tkoenig at gcc dot gnu dot org 2007-07-08 22:23 -------
Fixed on mainline.
No plans to backport this to 4.2.
--
tkoenig at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32217
^ permalink raw reply [flat|nested] 8+ messages in thread
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2007-06-05 7:55 [Bug fortran/32217] New: gfortran segfaults on UNPACK with zero-sized arrays highegg at gmail dot com
2007-06-05 17:30 ` [Bug fortran/32217] segfaults (at runtime) " burnus at gcc dot gnu dot org
2007-06-16 8:09 ` tkoenig at gcc dot gnu dot org
2007-06-22 22:16 ` tkoenig at gcc dot gnu dot org
2007-07-08 15:42 ` dominiq at lps dot ens dot fr
2007-07-08 21:30 ` patchapp at dberlin dot org
2007-07-08 22:20 ` tkoenig at gcc dot gnu dot org
2007-07-08 22:23 ` tkoenig at gcc dot gnu dot org
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