[Bug fortran/56054] New: f951: internal compiler error: in gfc_free_namespace, at fortran/symbol.c:3337

[Bug fortran/56054] New: f951: internal compiler error: in gfc_free_namespace, at fortran/symbol.c:3337

[Joost.VandeVondele at mat dot ethz.ch]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56054

             Bug #: 56054
           Summary: f951: internal compiler error: in gfc_free_namespace,
                    at fortran/symbol.c:3337
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: Joost.VandeVondele@mat.ethz.ch


gcc (4.8, 4.7, 4.6) ICEs on this invalid piece of code

> cat small.f90
module kernels
      select type (args)
end module kernels

f951: internal compiler error: in gfc_free_namespace, at fortran/symbol.c:3337
0x5ccc61 gfc_free_namespace(gfc_namespace*)
        ../../gcc/gcc/fortran/symbol.c:3337
0x5cd1df gfc_symbol_done_2()
        ../../gcc/gcc/fortran/symbol.c:3384
0x5899e8 gfc_done_2()
        ../../gcc/gcc/fortran/misc.c:267
0x596a0a clean_up_modules
        ../../gcc/gcc/fortran/parse.c:4416
0x59cec3 translate_all_program_units
        ../../gcc/gcc/fortran/parse.c:4486
0x59cec3 gfc_parse_file()
        ../../gcc/gcc/fortran/parse.c:4677
0x5da115 gfc_be_parse_file
        ../../gcc/gcc/fortran/f95-lang.c:189
Please submit a full bug report,

[Bug fortran/56054] f951: internal compiler error: in gfc_free_namespace, at fortran/symbol.c:3337

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56054

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-01-20
     Ever Confirmed|0                           |1

--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2013-01-20 17:03:47 UTC ---
Gfortran 4.5.3 gives

pr56054.f90:2.24:

      select type (args)
                        1
Error: Selector shall be polymorphic in SELECT TYPE statement at (1)

Revision 158253 (2010-04-13) gives the error; revision 162456 (2010-07-23)
gives the ICE after error:

pr56054.f90:2.24:

      select type (args)
                        1
Error: Unexpected SELECT TYPE statement in MODULE at (1)
f951: internal compiler error: Segmentation fault

Revision 163529 gives

pr56054.f90:2.24:

      select type (args)
                        1
Error: Unexpected SELECT TYPE statement in MODULE at (1)
f951: internal compiler error: in gfc_free_namespace, at fortran/symbol.c:3271

[Bug fortran/56054] [4.6/4.7/4.8 Regression] f951: internal compiler error: in gfc_free_namespace, at fortran/symbol.c:3337

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56054

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|f951: internal compiler     |[4.6/4.7/4.8 Regression]
                   |error: in                   |f951: internal compiler
                   |gfc_free_namespace, at      |error: in
                   |fortran/symbol.c:3337       |gfc_free_namespace, at
                   |                            |fortran/symbol.c:3337

--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2013-01-20 17:12:05 UTC ---
Mark as a regression.

[Bug fortran/56054] [4.6/4.7/4.8 Regression] f951: internal compiler error: in gfc_free_namespace, at fortran/symbol.c:3337

[mikael at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56054

Mikael Morin <mikael at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mikael at gcc dot gnu.org

--- Comment #3 from Mikael Morin <mikael at gcc dot gnu.org> 2013-01-20 17:22:12 UTC ---
Probable duplicate: PR50627

[Bug fortran/56054] [4.6/4.7/4.8 Regression] f951: internal compiler error: in gfc_free_namespace, at fortran/symbol.c:3337

[Joost.VandeVondele at mat dot ethz.ch]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56054

Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |Joost.VandeVondele at mat
                   |                            |dot ethz.ch
         Depends on|                            |50627
         Resolution|                            |DUPLICATE

--- Comment #4 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> 2013-01-20 18:08:20 UTC ---
almost certainly a dup

*** This bug has been marked as a duplicate of bug 50627 ***

[Bug fortran/56054] [4.6/4.7/4.8 Regression] f951: internal compiler error: in gfc_free_namespace, at fortran/symbol.c:3337

[tkoenig at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56054

--- Comment #5 from Thomas Koenig <tkoenig at gcc dot gnu.org> 2013-02-02 09:51:03 UTC ---
Author: tkoenig
Date: Sat Feb  2 09:50:58 2013
New Revision: 195684

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195684
Log:
2013-02-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/50627
    PR fortran/56054
    * decl.c (gfc_match_end):  Remove half-ready namespace
    from parent if the end of a block is missing.
    * parse.c (parse_module):  Do not put namespace into
    gsymbol on error.

2013-02-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/50627
    PR fortran/56054
    * gfortran.dg/block_12.f90:  New test.
    * gfortran.dg/module_error_1.f90:  New test.


Added:
    trunk/gcc/testsuite/gfortran.dg/block_12.f90
    trunk/gcc/testsuite/gfortran.dg/module_error_1.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/decl.c
    trunk/gcc/fortran/parse.c
    trunk/gcc/testsuite/ChangeLog

[Bug fortran/56054] [4.6/4.7/4.8 Regression] f951: internal compiler error: in gfc_free_namespace, at fortran/symbol.c:3337

[tkoenig at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56054

--- Comment #6 from Thomas Koenig <tkoenig at gcc dot gnu.org> 2013-02-02 22:38:22 UTC ---
Author: tkoenig
Date: Sat Feb  2 22:38:14 2013
New Revision: 195687

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195687
Log:
2013-02-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

    Backport from trunk
    PR fortran/50627
    PR fortran/56054
    * decl.c (gfc_match_end):  Remove half-ready namespace
    from parent if the end of a block is missing.
    * parse.c (parse_module):  Do not put namespace into
    gsymbol on error.

2013-02-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

    Backport from trunk
    PR fortran/50627
    PR fortran/56054
    * gfortran.dg/block_12.f90:  New test.
    * gfortran.dg/module_error_1.f90:  New test.


Added:
    branches/gcc-4_7-branch/gcc/testsuite/gfortran.dg/block_12.f90
    branches/gcc-4_7-branch/gcc/testsuite/gfortran.dg/module_error_1.f90
Modified:
    branches/gcc-4_7-branch/gcc/fortran/ChangeLog
    branches/gcc-4_7-branch/gcc/fortran/decl.c
    branches/gcc-4_7-branch/gcc/fortran/parse.c
    branches/gcc-4_7-branch/gcc/testsuite/ChangeLog

[Bug fortran/56054] [4.6/4.7/4.8 Regression] f951: internal compiler error: in gfc_free_namespace, at fortran/symbol.c:3337

[tkoenig at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56054

--- Comment #7 from Thomas Koenig <tkoenig at gcc dot gnu.org> 2013-02-03 13:15:24 UTC ---
Author: tkoenig
Date: Sun Feb  3 13:15:18 2013
New Revision: 195695

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195695
Log:
2013-02-03  Thomas Koenig  <tkoenig@gcc.gnu.org>

    Backport from trunk
    PR fortran/50627
    PR fortran/56054
    * decl.c (gfc_match_end):  Remove half-ready namespace
    from parent if the end of a block is missing.
    * parse.c (parse_module):  Do not put namespace into
    gsymbol on error.

2013-02-03  Thomas Koenig  <tkoenig@gcc.gnu.org>

    Backport from trunk
    PR fortran/50627
    PR fortran/56054
    * gfortran.dg/block_12.f90:  New test.
    * gfortran.dg/module_error_1.f90:  New test.


Added:
    branches/gcc-4_6-branch/gcc/testsuite/gfortran.dg/block_12.f90
    branches/gcc-4_6-branch/gcc/testsuite/gfortran.dg/module_error_1.f90
Modified:
    branches/gcc-4_6-branch/gcc/fortran/ChangeLog
    branches/gcc-4_6-branch/gcc/fortran/decl.c
    branches/gcc-4_6-branch/gcc/fortran/parse.c
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog