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* [Bug fortran/17077] New: adjustable size arrays crash
@ 2004-08-18 9:55 scottb at uci dot edu
2004-08-19 0:27 ` [Bug fortran/17077] " jvdelisle at verizon dot net
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: scottb at uci dot edu @ 2004-08-18 9:55 UTC (permalink / raw)
To: gcc-bugs
Using adjustable size arrays in subroutines causes some memory alloc problem.
It crashes my system, other times results in gibberish output.
I have put a program below that fails. It works on other f90 compilers.
WORKAROUND: When I replace adjustable size arrays (e.g. x(n,n)) with assumed
size arrays (e.g., x(:,:)) it all works fine. No idea why.
I use Mac OS X 10.3 (Darwin6.8) on dual G5.
GCC version 3.5-tree-ssa-lno 20040811 (merged 20040718).
Configured with /gcc/configure --enable-threads=posix --enable-languages=c,f95
!Program that fails.
program p
implicit none
integer:: n
n=3
call foo(n)
contains
subroutine foo(m)
integer:: m,i
real, dimension(m,m):: z
! Print z. It's OK here (all zero).
do i=1,m
write(*,*) z(i,:)
enddo
call foo1(z)
end subroutine foo
subroutine foo1(x)
integer:: n,i,j
real, dimension(:,:):: x
! Print z. It's not OK here (memory garbage).
do i=1,n
write(*,*) x(i,1:n)
enddo
end subroutine foo1
end program p
--
Summary: adjustable size arrays crash
Product: gcc
Version: 3.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: scottb at uci dot edu
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17077
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug fortran/17077] adjustable size arrays crash 2004-08-18 9:55 [Bug fortran/17077] New: adjustable size arrays crash scottb at uci dot edu @ 2004-08-19 0:27 ` jvdelisle at verizon dot net 2004-08-20 13:31 ` cvs-commit at gcc dot gnu dot org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: jvdelisle at verizon dot net @ 2004-08-19 0:27 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From jvdelisle at verizon dot net 2004-08-19 00:27 ------- I have confirmed this segfaults on P4 system running linux, FC 2 Reading specs from /home/jerry/gftest/usr/local/bin/../lib/gcc/i686-pc-linux-gnu/3.5.0/specs Configured with: ../gcc-3.5-20040801/configure Thread model: posix gcc version 3.5.0 20040801 (experimental) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17077 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/17077] adjustable size arrays crash 2004-08-18 9:55 [Bug fortran/17077] New: adjustable size arrays crash scottb at uci dot edu 2004-08-19 0:27 ` [Bug fortran/17077] " jvdelisle at verizon dot net @ 2004-08-20 13:31 ` cvs-commit at gcc dot gnu dot org 2004-08-20 13:34 ` pbrook at gcc dot gnu dot org 2004-08-20 15:37 ` pinskia at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: cvs-commit at gcc dot gnu dot org @ 2004-08-20 13:31 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-08-20 13:31 ------- Subject: Bug 17077 CVSROOT: /cvs/gcc Module name: gcc Changes by: pbrook@gcc.gnu.org 2004-08-20 13:31:14 Modified files: gcc/fortran : ChangeLog trans-array.c trans-types.c gcc/testsuite : ChangeLog Added files: gcc/testsuite/gfortran.dg: auto_array_1.f90 Log message: 2004-08-20 Paul Brook <paul@codesourcery.com> Canqun Yang <canqun@nudt.edu.cn> PR fortran/17077 * trans-array.c (gfc_conv_array_parameter): Pass correct pointer for automatic arrays. * trans-types.c (gfc_get_nodesc_array_type): Add comment. testsuite/ * gfortran.dg/auto_array_1.f90: New test. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fortran/ChangeLog.diff?cvsroot=gcc&r1=1.158&r2=1.159 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fortran/trans-array.c.diff?cvsroot=gcc&r1=1.17&r2=1.18 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fortran/trans-types.c.diff?cvsroot=gcc&r1=1.10&r2=1.11 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4164&r2=1.4165 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gfortran.dg/auto_array_1.f90.diff?cvsroot=gcc&r1=NONE&r2=1.1 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17077 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/17077] adjustable size arrays crash 2004-08-18 9:55 [Bug fortran/17077] New: adjustable size arrays crash scottb at uci dot edu 2004-08-19 0:27 ` [Bug fortran/17077] " jvdelisle at verizon dot net 2004-08-20 13:31 ` cvs-commit at gcc dot gnu dot org @ 2004-08-20 13:34 ` pbrook at gcc dot gnu dot org 2004-08-20 15:37 ` pinskia at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: pbrook at gcc dot gnu dot org @ 2004-08-20 13:34 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pbrook at gcc dot gnu dot org 2004-08-20 13:34 ------- Fixed. -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17077 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/17077] adjustable size arrays crash 2004-08-18 9:55 [Bug fortran/17077] New: adjustable size arrays crash scottb at uci dot edu ` (2 preceding siblings ...) 2004-08-20 13:34 ` pbrook at gcc dot gnu dot org @ 2004-08-20 15:37 ` pinskia at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: pinskia at gcc dot gnu dot org @ 2004-08-20 15:37 UTC (permalink / raw) To: gcc-bugs -- What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |3.5.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17077 ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2004-08-20 15:37 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2004-08-18 9:55 [Bug fortran/17077] New: adjustable size arrays crash scottb at uci dot edu 2004-08-19 0:27 ` [Bug fortran/17077] " jvdelisle at verizon dot net 2004-08-20 13:31 ` cvs-commit at gcc dot gnu dot org 2004-08-20 13:34 ` pbrook at gcc dot gnu dot org 2004-08-20 15:37 ` pinskia at gcc dot gnu dot org
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