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* [Bug fortran/56477] New: ICE on invalid with pointer assignment to function result @ 2013-02-27 21:55 abensonca at gmail dot com 2013-02-27 22:15 ` [Bug fortran/56477] [4.8 Regression] " tkoenig at gcc dot gnu.org ` (3 more replies) 0 siblings, 4 replies; 5+ messages in thread From: abensonca at gmail dot com @ 2013-02-27 21:55 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56477 Bug #: 56477 Summary: ICE on invalid with pointer assignment to function result Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned@gcc.gnu.org ReportedBy: abensonca@gmail.com The following causes an ICE with gfortran 4.8.0 r196316: module s contains function so() implicit none integer, target :: so integer, pointer :: sp sp => so return end function So end module s $ gfortran -v Using built-in specs. COLLECT_GCC=gfortran COLLECT_LTO_WRAPPER=/home/abenson/libexec/gcc/x86_64-unknown-linux-gnu/4.8.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: ../gcc-trunk/configure --prefix=/home/abenson --enable-languages=c,c++,fortran --disable-multilib --with-gmp=/home/abenson Thread model: posix gcc version 4.8.0 20130227 (experimental) (GCC) $ gfortran -c -o ICEtest.o ICEtest.F90 -Wall f951: internal compiler error: Segmentation fault 0x92f79f crash_signal ../../gcc-trunk/gcc/toplev.c:332 0x4fdbf2 gfc_check_pointer_assign(gfc_expr*, gfc_expr*) ../../gcc-trunk/gcc/fortran/expr.c:3734 0x5555d6 resolve_code ../../gcc-trunk/gcc/fortran/resolve.c:10261 0x557c5e resolve_codes ../../gcc-trunk/gcc/fortran/resolve.c:14972 0x557b67 resolve_codes ../../gcc-trunk/gcc/fortran/resolve.c:14958 0x548aa2 gfc_resolve ../../gcc-trunk/gcc/fortran/resolve.c:15000 0x53d186 gfc_parse_file() ../../gcc-trunk/gcc/fortran/parse.c:4608 0x579415 gfc_be_parse_file ../../gcc-trunk/gcc/fortran/f95-lang.c:189 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions. The "-Wall" is important - without the code compiles without complaint. I tagged this as invalid(?) because I don't think that giving the function return value the TARGET attribute makes sense, although I couldn't find anything that clearly says it's not allowed. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/56477] [4.8 Regression] ICE on invalid with pointer assignment to function result 2013-02-27 21:55 [Bug fortran/56477] New: ICE on invalid with pointer assignment to function result abensonca at gmail dot com @ 2013-02-27 22:15 ` tkoenig at gcc dot gnu.org 2013-02-27 22:31 ` tkoenig at gcc dot gnu.org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: tkoenig at gcc dot gnu.org @ 2013-02-27 22:15 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56477 Thomas Koenig <tkoenig at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Keywords| |ice-on-invalid-code Last reconfirmed| |2013-02-27 CC| |burnus at gcc dot gnu.org, | |tkoenig at gcc dot gnu.org Ever Confirmed|0 |1 Summary|ICE on invalid with pointer |[4.8 Regression] ICE on |assignment to function |invalid with pointer |result |assignment to function | |result Target Milestone|--- |4.8.0 --- Comment #1 from Thomas Koenig <tkoenig at gcc dot gnu.org> 2013-02-27 22:14:33 UTC --- The problem is in for (ns = rvalue->symtree->n.sym->ns; ns->proc_name && ns->proc_name->attr.flavor != FL_PROCEDURE; ns = ns->parent) where value->symtree->n.sym->ns->parent is NULL. Does not happen with 4.7 or 4.6. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/56477] [4.8 Regression] ICE on invalid with pointer assignment to function result 2013-02-27 21:55 [Bug fortran/56477] New: ICE on invalid with pointer assignment to function result abensonca at gmail dot com 2013-02-27 22:15 ` [Bug fortran/56477] [4.8 Regression] " tkoenig at gcc dot gnu.org @ 2013-02-27 22:31 ` tkoenig at gcc dot gnu.org 2013-03-03 19:59 ` mikael at gcc dot gnu.org 2013-03-03 20:02 ` mikael at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: tkoenig at gcc dot gnu.org @ 2013-02-27 22:31 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56477 --- Comment #2 from Thomas Koenig <tkoenig at gcc dot gnu.org> 2013-02-27 22:31:08 UTC --- > where value->symtree->n.sym->ns->parent is NULL. Should be rvalue->symtree->n.sym->ns->parent (copy&paste error). ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/56477] [4.8 Regression] ICE on invalid with pointer assignment to function result 2013-02-27 21:55 [Bug fortran/56477] New: ICE on invalid with pointer assignment to function result abensonca at gmail dot com 2013-02-27 22:15 ` [Bug fortran/56477] [4.8 Regression] " tkoenig at gcc dot gnu.org 2013-02-27 22:31 ` tkoenig at gcc dot gnu.org @ 2013-03-03 19:59 ` mikael at gcc dot gnu.org 2013-03-03 20:02 ` mikael at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: mikael at gcc dot gnu.org @ 2013-03-03 19:59 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56477 --- Comment #3 from Mikael Morin <mikael at gcc dot gnu.org> 2013-03-03 19:58:53 UTC --- Author: mikael Date: Sun Mar 3 19:58:49 2013 New Revision: 196417 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=196417 Log: fortran/ PR fortran/56477 * expr.c (gfc_check_pointer_assign): Avoid NULL pointer dereference. testsuite/ PR fortran/56477 * gfortran.dg/pointer_check_13.f90: New test. Added: trunk/gcc/testsuite/gfortran.dg/pointer_check_13.f90 Modified: trunk/gcc/fortran/ChangeLog trunk/gcc/fortran/expr.c trunk/gcc/testsuite/ChangeLog ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug fortran/56477] [4.8 Regression] ICE on invalid with pointer assignment to function result 2013-02-27 21:55 [Bug fortran/56477] New: ICE on invalid with pointer assignment to function result abensonca at gmail dot com ` (2 preceding siblings ...) 2013-03-03 19:59 ` mikael at gcc dot gnu.org @ 2013-03-03 20:02 ` mikael at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: mikael at gcc dot gnu.org @ 2013-03-03 20:02 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56477 Mikael Morin <mikael at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |mikael at gcc dot gnu.org Resolution| |FIXED --- Comment #4 from Mikael Morin <mikael at gcc dot gnu.org> 2013-03-03 20:01:44 UTC --- Fixed. ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2013-03-03 20:02 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2013-02-27 21:55 [Bug fortran/56477] New: ICE on invalid with pointer assignment to function result abensonca at gmail dot com 2013-02-27 22:15 ` [Bug fortran/56477] [4.8 Regression] " tkoenig at gcc dot gnu.org 2013-02-27 22:31 ` tkoenig at gcc dot gnu.org 2013-03-03 19:59 ` mikael at gcc dot gnu.org 2013-03-03 20:02 ` mikael at gcc dot gnu.org
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