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* [Bug fortran/36683] New: -fbounds-check failure for allocated array and spread
@ 2008-07-01 5:22 terry at chem dot gu dot se
2008-07-01 19:22 ` [Bug fortran/36683] " tkoenig at gcc dot gnu dot org
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: terry at chem dot gu dot se @ 2008-07-01 5:22 UTC (permalink / raw)
To: gcc-bugs
Unconformable array operations are not being picked up in the following:
[tjf@rscpc28 Stoopid]$ cat badness.f90
program fred
implicit none
real,dimension(:,:),allocatable::A
real,dimension(5)::v
allocate(A(5,5))
A=5
v=5
A=A/spread(v,2,3)
write(*,*)A(1,:)
write(*,*)A(2,:)
write(*,*)A(3,:)
write(*,*)A(4,:)
write(*,*)A(5,:)
end
[tjf@rscpc28 Stoopid]$ gfortran -Wall -O0 -W -Wtabs -g -fbounds-check -o
badness badness.f90
[tjf@rscpc28 Stoopid]$ ./badness
1.00000000 1.00000000 1.00000000 5.0000000 5.0000000
1.00000000 1.00000000 1.00000000 5.0000000 5.0000000
1.00000000 1.00000000 1.00000000 5.0000000 5.0000000
1.00000000 1.00000000 1.00000000 5.0000000 5.0000000
1.00000000 1.00000000 1.00000000 5.0000000 5.0000000
[tjf@rscpc28 Stoopid]$ gfortran -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../gcc-4.3-20080522/configure --disable-multilib
--enable-languages=c,c++,fortran
Thread model: posix
gcc version 4.3.1 20080522 (prerelease) (GCC)
Making the spread array too big [spread(v,2,13)] is not detected either. My
quick attempts to do both in a single code caused glibc to freak out with
"double free or corruption" detection.
--
Summary: -fbounds-check failure for allocated array and spread
Product: gcc
Version: 4.3.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: terry at chem dot gu dot se
GCC host triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36683
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug fortran/36683] -fbounds-check failure for allocated array and spread 2008-07-01 5:22 [Bug fortran/36683] New: -fbounds-check failure for allocated array and spread terry at chem dot gu dot se @ 2008-07-01 19:22 ` tkoenig at gcc dot gnu dot org 2008-10-12 12:11 ` tkoenig at gcc dot gnu dot org 2009-04-29 14:20 ` dominiq at lps dot ens dot fr 2 siblings, 0 replies; 5+ messages in thread From: tkoenig at gcc dot gnu dot org @ 2008-07-01 19:22 UTC (permalink / raw) To: gcc-bugs -- tkoenig at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- OtherBugsDependingO| |34670 nThis| | Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2008-07-01 19:21:45 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36683 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/36683] -fbounds-check failure for allocated array and spread 2008-07-01 5:22 [Bug fortran/36683] New: -fbounds-check failure for allocated array and spread terry at chem dot gu dot se 2008-07-01 19:22 ` [Bug fortran/36683] " tkoenig at gcc dot gnu dot org @ 2008-10-12 12:11 ` tkoenig at gcc dot gnu dot org 2009-04-29 14:20 ` dominiq at lps dot ens dot fr 2 siblings, 0 replies; 5+ messages in thread From: tkoenig at gcc dot gnu dot org @ 2008-10-12 12:11 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from tkoenig at gcc dot gnu dot org 2008-10-12 12:09 ------- The front end obligingly fills out the descriptor for the libray with an extent of 3: atmp.5.dim[1].stride = 5; atmp.5.dim[1].lbound = 0; atmp.5.dim[1].ubound = 2; atmp.5.data = (void *) &A.6; atmp.5.offset = 0; _gfortran_spread (&atmp.5, &parm.4, &C.1545, &C.1546); It does so without checking conformance with the rest of the expression. -- tkoenig at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tkoenig at gcc dot gnu dot | |org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36683 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/36683] -fbounds-check failure for allocated array and spread 2008-07-01 5:22 [Bug fortran/36683] New: -fbounds-check failure for allocated array and spread terry at chem dot gu dot se 2008-07-01 19:22 ` [Bug fortran/36683] " tkoenig at gcc dot gnu dot org 2008-10-12 12:11 ` tkoenig at gcc dot gnu dot org @ 2009-04-29 14:20 ` dominiq at lps dot ens dot fr 2 siblings, 0 replies; 5+ messages in thread From: dominiq at lps dot ens dot fr @ 2009-04-29 14:20 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from dominiq at lps dot ens dot fr 2009-04-29 14:20 ------- pr39286 is a duplicate of this one. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36683 ^ permalink raw reply [flat|nested] 5+ messages in thread
[parent not found: <bug-36683-4@http.gcc.gnu.org/bugzilla/>]
* [Bug fortran/36683] -fbounds-check failure for allocated array and spread [not found] <bug-36683-4@http.gcc.gnu.org/bugzilla/> @ 2013-08-09 7:55 ` tkoenig at gcc dot gnu.org 0 siblings, 0 replies; 5+ messages in thread From: tkoenig at gcc dot gnu.org @ 2013-08-09 7:55 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36683 Thomas Koenig <tkoenig at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |burnus at gcc dot gnu.org --- Comment #3 from Thomas Koenig <tkoenig at gcc dot gnu.org> --- *** Bug 39286 has been marked as a duplicate of this bug. *** ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2013-08-09 7:55 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2008-07-01 5:22 [Bug fortran/36683] New: -fbounds-check failure for allocated array and spread terry at chem dot gu dot se
2008-07-01 19:22 ` [Bug fortran/36683] " tkoenig at gcc dot gnu dot org
2008-10-12 12:11 ` tkoenig at gcc dot gnu dot org
2009-04-29 14:20 ` dominiq at lps dot ens dot fr
[not found] <bug-36683-4@http.gcc.gnu.org/bugzilla/>
2013-08-09 7:55 ` tkoenig at gcc dot gnu.org
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