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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
end of thread, other threads:[~2007-07-08 22:23 UTC | newest] Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 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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