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* [Bug fortran/38802] New: Seg fault for RESULT with allocatable components @ 2009-01-11 12:15 pault at gcc dot gnu dot org 2009-01-11 13:26 ` [Bug fortran/38802] " dominiq at lps dot ens dot fr ` (3 more replies) 0 siblings, 4 replies; 5+ messages in thread From: pault at gcc dot gnu dot org @ 2009-01-11 12:15 UTC (permalink / raw) To: gcc-bugs Posted on the list by Marco Restelli http://gcc.gnu.org/ml/fortran/2009-01/ $ gfortran test.f90 -o test $ ./test Segmentation fault $ gfortran --version GNU Fortran (GCC) 4.4.0 20090110 (experimental) [trunk revision 143243] System: Linux 2.6.23-gentoo-r6 x86_64 AMD Turion(tm) 64 Mobile Technology ML-32 AuthenticAMD GNU/Linux module mod_a implicit none public :: a_fun, t_1, t_2 private type t_1 real :: coeff end type t_1 type t_2 type(t_1), allocatable :: mons(:) end type t_2 contains function a_fun(r) result(p) integer, intent(in) :: r type(t_2) :: p(r+1) ! Using an allocatable works !type(t_2), allocatable :: p(:) ! allocate(p(r+1)) write(*,*) 'shape(p) is ', shape(p) end function a_fun end module mod_a A workaround is to not use the RESULT variable. The code shows that the result is being nullified before its upper bound is established. Paul program test use mod_a, only: a_fun, t_1, t_2 implicit none type(t_2) x(1) x = a_fun(0) end program test -- Summary: Seg fault for RESULT with allocatable components Product: gcc Version: 4.4.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: pault at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38802 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/38802] Seg fault for RESULT with allocatable components 2009-01-11 12:15 [Bug fortran/38802] New: Seg fault for RESULT with allocatable components pault at gcc dot gnu dot org @ 2009-01-11 13:26 ` dominiq at lps dot ens dot fr 2009-01-12 6:21 ` pault at gcc dot gnu dot org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: dominiq at lps dot ens dot fr @ 2009-01-11 13:26 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from dominiq at lps dot ens dot fr 2009-01-11 13:26 ------- Confirmed on i686-apple-darwin9 with -m64 or -m32 with optimization -O1 and above: Thread 0 Crashed: 0 a.out 0x00001dec __mod_a_MOD_a_fun + 30 1 a.out 0x00001daf MAIN__ + 141 2 a.out 0x00001f98 main + 40 3 a.out 0x00001cf6 start + 54 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38802 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/38802] Seg fault for RESULT with allocatable components 2009-01-11 12:15 [Bug fortran/38802] New: Seg fault for RESULT with allocatable components pault at gcc dot gnu dot org 2009-01-11 13:26 ` [Bug fortran/38802] " dominiq at lps dot ens dot fr @ 2009-01-12 6:21 ` pault at gcc dot gnu dot org 2009-04-08 17:28 ` burnus at gcc dot gnu dot org 2009-04-19 15:03 ` pault at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: pault at gcc dot gnu dot org @ 2009-01-12 6:21 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from pault at gcc dot gnu dot org 2009-01-12 06:21 ------- This does the job: Index: gcc/fortran/trans-array.c =================================================================== --- gcc/fortran/trans-array.c (revision 143242) +++ gcc/fortran/trans-array.c (working copy) @@ -5733,7 +5733,7 @@ } /* Dummy and use associated variables don't need anything special. */ - if (sym->attr.dummy || sym->attr.use_assoc) + if (sym->attr.dummy || sym->attr.use_assoc || sym->attr.result) { gfc_add_expr_to_block (&fnblock, body); Paul -- pault at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|unassigned at gcc dot gnu |pault at gcc dot gnu dot org |dot org | Status|UNCONFIRMED |ASSIGNED Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2009-01-12 06:21:46 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38802 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/38802] Seg fault for RESULT with allocatable components 2009-01-11 12:15 [Bug fortran/38802] New: Seg fault for RESULT with allocatable components pault at gcc dot gnu dot org 2009-01-11 13:26 ` [Bug fortran/38802] " dominiq at lps dot ens dot fr 2009-01-12 6:21 ` pault at gcc dot gnu dot org @ 2009-04-08 17:28 ` burnus at gcc dot gnu dot org 2009-04-19 15:03 ` pault at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: burnus at gcc dot gnu dot org @ 2009-04-08 17:28 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from burnus at gcc dot gnu dot org 2009-04-08 17:28 ------- Commit log went to the wrong PR: Author: pault Date: Wed Apr 8 08:59:34 2009 New Revision: 145714 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=145714 Log: 2009-04-08 Paul Thomas <pault@gcc.gnu.org> PR fortran/38863 * trans-array.c (gfc_trans_deferred_array): Return if this is a result variable. 2009-04-08 Paul Thomas <pault@gcc.gnu.org> PR fortran/38863 * gfortran.dg/alloc_comp_result_1.f90: New test. Added: trunk/gcc/testsuite/gfortran.dg/alloc_comp_result_1.f90 Modified: trunk/gcc/fortran/ChangeLog trunk/gcc/fortran/trans-array.c trunk/gcc/testsuite/ChangeLog -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38802 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/38802] Seg fault for RESULT with allocatable components 2009-01-11 12:15 [Bug fortran/38802] New: Seg fault for RESULT with allocatable components pault at gcc dot gnu dot org ` (2 preceding siblings ...) 2009-04-08 17:28 ` burnus at gcc dot gnu dot org @ 2009-04-19 15:03 ` pault at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: pault at gcc dot gnu dot org @ 2009-04-19 15:03 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from pault at gcc dot gnu dot org 2009-04-19 15:03 ------- Fixed on trunk. Thanks for the report Paul -- pault at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38802 ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2009-04-19 15:03 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2009-01-11 12:15 [Bug fortran/38802] New: Seg fault for RESULT with allocatable components pault at gcc dot gnu dot org 2009-01-11 13:26 ` [Bug fortran/38802] " dominiq at lps dot ens dot fr 2009-01-12 6:21 ` pault at gcc dot gnu dot org 2009-04-08 17:28 ` burnus at gcc dot gnu dot org 2009-04-19 15:03 ` pault at gcc dot gnu dot org
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