[Bug fortran/58586] New: ICE with derived type with a polymorphic allocatable component passed by value

[Bug fortran/58586] New: ICE with derived type with a polymorphic allocatable component passed by value

[vladimir.fuka at gmail dot com]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58586

            Bug ID: 58586
           Summary: ICE with derived type with a polymorphic allocatable
                    component passed by value
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: vladimir.fuka at gmail dot com

> gfortran -c ice3.f90
ice3.f90: In function ‘sub’:
ice3.f90:29:0: internal compiler error: Segmentation fault
    call add(b())
 ^
0x87dfdf crash_signal
        ../../gcc-4.8-20130425/gcc/toplev.c:332
0x5b19b0 structure_alloc_comps
        ../../gcc-4.8-20130425/gcc/fortran/trans-array.c:7440
0x5c97ca gfc_conv_procedure_call(gfc_se*, gfc_symbol*, gfc_actual_arglist*,
gfc_expr*, vec<tree_node*, va_gc, vl_embed>*)
        ../../gcc-4.8-20130425/gcc/fortran/trans-expr.c:4621
0x5ede84 gfc_trans_call(gfc_code*, bool, tree_node*, tree_node*, bool)
        ../../gcc-4.8-20130425/gcc/fortran/trans-stmt.c:406
0x5a7761 trans_code
        ../../gcc-4.8-20130425/gcc/fortran/trans.c:1500
0x5c4a02 gfc_generate_function_code(gfc_namespace*)
        ../../gcc-4.8-20130425/gcc/fortran/trans-decl.c:5397
0x568770 translate_all_program_units
        ../../gcc-4.8-20130425/gcc/fortran/parse.c:4474
0x568770 gfc_parse_file()
        ../../gcc-4.8-20130425/gcc/fortran/parse.c:4688
0x5a3a85 gfc_be_parse_file
        ../../gcc-4.8-20130425/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.

module mod

  type,abstract :: a
  end type

  type :: b
     class(a),allocatable :: a
  end type

  interface b
    module procedure b_init
  end interface

contains

  subroutine add(c)
    type(b),value :: c
  end subroutine

  function b_init() result(res)
    type(b) :: res
  end function

end module mod

subroutine  sub
   use mod

   call add(b())

end subroutine  sub
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Subject: [Bug target/58587] New: Bootstrap error with ada with -mcpu=power7
Date: Mon, 30 Sep 2013 22:54:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58587

            Bug ID: 58587
           Summary: Bootstrap error with ada with -mcpu=power7
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jakub at gcc dot gnu.org
                CC: meissner at gcc dot gnu.org

Trying to bootstrap gcc (4.8-RH, but reproduced also with the trunk) with
a ppc64 compiler configured --with-cpu=power7 ICEs during stage1 while par.adb
is being compiled at -O0.
Reproduced even with a cross-compiler from x86_64-linux, will attach a tarball
with all the required files.

../gnat1 -I. -gnatwa -quiet -nostdinc -m64 -gnatpg -gnatwns -mtune=power7
-mcpu=power7 par.adb -o /tmp/par.s
par.adb: In function ‘Par’:
par.adb:1604:5: error: insn does not satisfy its constraints:
(insn 1505 719 1504 (set (reg:TI 77 0)
        (const_double -16 [0xfffffffffffffff0] 7 [0x7] 0 [0] 0 [0]))
par.adb:1509 721 {*vsx_movti_64bit}
     (nil))
+===========================GNAT BUG DETECTED==============================+
| 4.9.0 20130927 (experimental) (powerpc64-linux) GCC error:               |
| in extract_constrain_insn_cached, at recog.c:2076                        |
| Error detected around par.adb:1604:5                                     |
| Please submit a bug report; see http://gcc.gnu.org/bugs.html.            |
| Use a subject line meaningful to you and us to track the bug.            |
| Include the entire contents of this bug box in the report.               |
| Include the exact gcc or gnatmake command that you entered.              |
| Also include sources listed below in gnatchop format                     |
| (concatenated together with no headers between files).                   |
+==========================================================================+
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Subject: [Bug target/58587] Bootstrap error with ada with -mcpu=power7
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idX587

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 30941
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id0941&actioníit
pr58587.tar.bz2

I've tried to create a C small reproducer from scratch, but just using TImode
seems to work, reload decides to put the extra large constant into memory, and
similarly say:
typedef int TI __attribute__((mode (TI)));
void
foo (void)
{
  asm volatile ("" : : "v" (((TI) 0x7fffffffffffffffUL) << 4));
}

[Bug fortran/58586] [OOP] ICE with derived type with a polymorphic allocatable component passed by value

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58586

Tobias Burnus <burnus at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code
      Known to fail|                            |4.7.3, 4.8.1, 4.9.0

--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> ---
(The code compiles successfully with crayftn, pgf95 and ifort.)


(In reply to Vladimir Fuka from comment #0)
> 0x5b19b0 structure_alloc_comps
>         ../../gcc-4.8-20130425/gcc/fortran/trans-array.c:7440

That's for der_type->name == "b" and debug_tree(decl) gives:
 <indirect_ref 0x2aaaac2e9bc0 side-effects
    arg 0 <call_expr 0x2aaaac1f6750
        type <record_type 0x2aaaac2f75e8 b TI

Hence, decl_type == NULL - which will crash at:
7464    structure_alloc_comps (gfc_symbol * der_type, tree decl,
7465                           tree dest, int rank, int purpose)
...
7487      decl_type = TREE_TYPE (decl);
(gdb) 
7489      if ((POINTER_TYPE_P (decl_type) && rank != 0)
              || (TREE_CODE (decl_type) == REFERENCE_TYPE && rank == 0))


That's called from:
      /* Allocated allocatable components of derived types must be
         deallocated for non-variable scalars.  Non-variable arrays are
         dealt with in trans-array.c(gfc_conv_array_parameter).  */
      if (e && (e->ts.type == BT_DERIVED || e->ts.type == BT_CLASS)
            && e->ts.u.derived->attr.alloc_comp
            && !(e->symtree && e->symtree->n.sym->attr.pointer)
            && (e->expr_type != EXPR_VARIABLE && !e->rank))
        {
...
          tmp = gfc_deallocate_alloc_comp (e->ts.u.derived, tmp, parm_rank);

          gfc_add_expr_to_block (&se->post, tmp);
        }

which shows that a temporary is required.

[Bug fortran/58586] [OOP] ICE with derived type with a polymorphic allocatable component passed by value

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58586

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-01-05
     Ever confirmed|0                           |1

[Bug fortran/58586] ICE with derived type with allocatable component passed by value

[janus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58586

janus at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[OOP] ICE with derived type |ICE with derived type with
                   |with a polymorphic          |allocatable component
                   |allocatable component       |passed by value
                   |passed by value             |

--- Comment #2 from janus at gcc dot gnu.org ---
Reduced test case with the same ICE:


module mod

  type :: a
  end type

  type :: b
     type(a), allocatable :: a
  end type

contains

  subroutine add (c)
    type(b), value :: c
  end subroutine

  type(b) function b_init()
  end function

end module


   use mod
   call add(b_init())
end


The component does not have to be polymorphic to trigger the error.

[Bug fortran/58586] ICE with derived type with allocatable component passed by value

[janus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58586

--- Comment #3 from janus at gcc dot gnu.org ---
Further reduction:


  type :: b
     integer, allocatable :: a
  end type

  call add(b(null()))

contains

  subroutine add (c)
    type(b), value :: c
  end subroutine

end

[Bug fortran/58586] ICE with derived type with allocatable component passed by value

[vehre at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58586

vehre at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |WAITING

--- Comment #4 from vehre at gcc dot gnu.org ---
Fix proposed at:

https://gcc.gnu.org/ml/fortran/2015-04/msg00058.html

[Bug fortran/58586] ICE with derived type with allocatable component passed by value

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58586

--- Comment #6 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> Contrary to Dominique's comment in 
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65894#c30
> adding the patch in
> https://gcc.gnu.org/ml/fortran/2015-04/msg00058.html
> on top of r222970 doesn't break our code, and all of our tests run as intended.

I was speaking of more recent patches such as

https://gcc.gnu.org/ml/fortran/2015-05/msg00017.html

or

https://gcc.gnu.org/ml/fortran/2015-05/msg00035.html

[Bug fortran/58586] ICE with derived type with allocatable component passed by value

[juergen.reuter at desy dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58586

--- Comment #7 from Jürgen Reuter <juergen.reuter at desy dot de> ---
Hm, ok, these are not just in a single file, cannot promise that I will be able
to look into them. :(
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Subject: [Bug tree-optimization/66101] New: [5/6 Regression] internal compiler error: in verify_loop_structure, at cfgloop.c:1662
Date: Mon, 11 May 2015 10:12:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66101

            Bug ID: 66101
           Summary: [5/6 Regression] internal compiler error: in
                    verify_loop_structure, at cfgloop.c:1662
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mpolacek at gcc dot gnu.org
  Target Milestone: ---

$ ./cc1 -quiet -O2 o.c 
o.c: In function ‘bar’:
o.c:8:5: warning: implicit declaration of function ‘longjmp’
[-Wimplicit-function-declaration]
     longjmp ();
     ^
o.c: In function ‘foo’:
o.c:16:3: warning: implicit declaration of function ‘_setjmp’
[-Wimplicit-function-declaration]
   _setjmp ();
   ^
o.c:29:1: error: size of loop 1 should be 3, not 5
 }
 ^
o.c:29:1: internal compiler error: in verify_loop_structure, at cfgloop.c:1662
0x8437cc verify_loop_structure()
        /home/marek/src/gcc/gcc/cfgloop.c:1662
0xb9b354 loop_optimizer_init(unsigned int)
        /home/marek/src/gcc/gcc/loop-init.c:124
0xc872fa execute
        /home/marek/src/gcc/gcc/predict.c:3056
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.

int a, c, d, e;

int
bar ()
{
  int b = *(long *) 7 == 5 ? : 0;
  if (a || a > b)
    longjmp ();
  return 1;
}

void
foo ()
{
  long f;
  _setjmp ();
  for (; d; c++)
    switch (c)
      case 0:
      {
        f = bar () >> 1;
        if (e)
          goto L;
        if (bar () >> 1)
          goto L;
      }
L:
  ;
}
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Subject: [Bug tree-optimization/66101] [5/6 Regression] internal compiler error: in verify_loop_structure, at cfgloop.c:1662
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idf101

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |5.2

[Bug fortran/58586] ICE with derived type with allocatable component passed by value

[vehre at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58586

--- Comment #8 from vehre at gcc dot gnu.org ---
Author: vehre
Date: Mon Jul  6 10:26:12 2015
New Revision: 225447

URL: https://gcc.gnu.org/viewcvs?rev=225447&root=gcc&view=rev
Log:
gcc/testsuite/ChangeLog:

2015-07-06  Andre Vehreschild  <vehre@gmx.de>

        PR fortran/58586
        * gfortran.dg/alloc_comp_class_3.f03: New test.
        * gfortran.dg/alloc_comp_class_4.f03: New test.


gcc/fortran/ChangeLog:

2015-07-06  Andre Vehreschild  <vehre@gmx.de>

        PR fortran/58586
        * resolve.c (resolve_symbol): Non-private functions in modules
        with allocatable or pointer components are marked referenced
        now. Furthermore is the default init especially for those
        components now done in gfc_conf_procedure_call preventing
        duplicate code.
        * trans-decl.c (gfc_generate_function_code): Generate a fake
        result decl for functions returning an object with allocatable
        components and initialize them.
        * trans-expr.c (gfc_conv_procedure_call): For value typed trees
        use the tree without indirect ref. And for non-decl trees
        add a temporary variable to prevent evaluating the tree
        multiple times (prevent multiple function evaluations).
        * trans.h: Made gfc_trans_structure_assign () protoype
        available, which is now needed by trans-decl.c:gfc_generate_
        function_code(), too.


Added:
    trunk/gcc/testsuite/gfortran.dg/alloc_comp_class_3.f03
    trunk/gcc/testsuite/gfortran.dg/alloc_comp_class_4.f03
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/resolve.c
    trunk/gcc/fortran/trans-decl.c
    trunk/gcc/fortran/trans-expr.c
    trunk/gcc/fortran/trans.h

[Bug fortran/58586] ICE with derived type with allocatable component passed by value

[vehre at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58586

vehre at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|---                         |FIXED

--- Comment #9 from vehre at gcc dot gnu.org ---
No objections yet, declaring it fixed with r225447.