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* [Bug fortran/64947] New: Internal compiler error: in gimplify_expr, at gimplify.c:8425
@ 2015-02-05 14:26 bugs at stellardeath dot org
2015-02-05 14:31 ` [Bug fortran/64947] " bugs at stellardeath dot org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: bugs at stellardeath dot org @ 2015-02-05 14:26 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64947
Bug ID: 64947
Summary: Internal compiler error: in gimplify_expr, at
gimplify.c:8425
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: bugs at stellardeath dot org
Created attachment 34676
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34676&action=edit
Fairly minimal testcase to trigger the bug.
The following (IMO valid) code produces an internal compiler error for gfortran
4.9.0 which is available on my openSUSE:
#> cat testcase.f90
module ice_gimplify_expr
use, intrinsic :: iso_c_binding
implicit none
integer, parameter :: name_length = 40
type :: node_t
character(len=name_length) :: name
contains
procedure, pass :: get_child => node_get_child
end type
interface
pure function strnlen(ptr, maxlen) result(size) bind(c, name="strnlen")
use, intrinsic :: iso_c_binding
type(c_ptr), intent(in), value :: ptr
integer(kind=C_SIZE_T), intent(in), value :: maxlen
integer(kind=C_SIZE_T) :: size
end function
end interface
contains
function node_get_child(self, name) result(child)
class(node_t), intent(in) :: self
character(len=*), intent(in) :: name
type(node_t), pointer :: child
child => NULL()
end function
function c_string(ptr) result(s)
type(c_ptr), value, intent(in) :: ptr
character(kind=C_CHAR, len=strnlen(ptr, int(name_length, kind=C_SIZE_T))),
pointer :: s
call c_f_pointer(ptr, s)
end function
function node_from_strings(strings) result(node)
type(node_t), pointer :: node
type(c_ptr), intent(in), dimension(2) :: strings
node => node%get_child(c_string(strings(1)))
end function
end module
#> gfortran-4.9 --version
GNU Fortran (SUSE Linux) 4.9.0
Copyright (C) 2014 Free Software Foundation, Inc.
GNU Fortran comes with NO WARRANTY, to the extent permitted by law.
You may redistribute copies of GNU Fortran
under the terms of the GNU General Public License.
For more information about these matters, see the file named COPYING
#> gfortran-4.9 -ffree-form -c testcase.f90
testcase.f90: In function ‘node_from_strings’:
testcase.f90:40:0: internal compiler error: in gimplify_expr, at
gimplify.c:8425
node => node%get_child(c_string(strings(1)))
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://bugs.opensuse.org/> for instructions.
#>
>From gcc-bugs-return-476129-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Feb 05 14:27:59 2015
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From: "gene at staubsaal dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/64915] lambda partially drops constness of 'this'
Date: Thu, 05 Feb 2015 14:27:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idd915
gene at staubsaal dot de changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #1 from gene at staubsaal dot de ---
Duplicated, didn't find it on my last search.
*** This bug has been marked as a duplicate of bug 60463 ***
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug fortran/64947] Internal compiler error: in gimplify_expr, at gimplify.c:8425
2015-02-05 14:26 [Bug fortran/64947] New: Internal compiler error: in gimplify_expr, at gimplify.c:8425 bugs at stellardeath dot org
@ 2015-02-05 14:31 ` bugs at stellardeath dot org
2015-02-05 15:23 ` burnus at gcc dot gnu.org
2015-02-05 15:34 ` [Bug fortran/64947] ICE in gimplify_expr, at gimplify.c:8425 with arrays of type(C_PTR) burnus at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: bugs at stellardeath dot org @ 2015-02-05 14:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64947
--- Comment #1 from Lorenz Hüdepohl <bugs at stellardeath dot org> ---
Also present in 4.8.3:
#> gfortran --version
GNU Fortran (SUSE Linux) 4.8.3 20141208 [gcc-4_8-branch revision 218481]
Copyright (C) 2013 Free Software Foundation, Inc.
GNU Fortran comes with NO WARRANTY, to the extent permitted by law.
You may redistribute copies of GNU Fortran
under the terms of the GNU General Public License.
For more information about these matters, see the file named COPYING
#> gfortran -ffree-form -c testcase.f90
testcase.f90: In function ‘node_from_strings’:
testcase.f90:40:0: internal compiler error: in gimplify_expr, at
gimplify.c:8051
node => node%get_child(c_string(strings(1)))
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://bugs.opensuse.org/> for instructions.
>From gcc-bugs-return-476132-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Feb 05 14:33:46 2015
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From: "iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ada/64349] [5 Regression] Bootstrapping Ada fails on darwin(9|10).
Date: Thu, 05 Feb 2015 14:33:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idd349
--- Comment #18 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Dominique d'Humieres from comment #17)
> > Better now?
>
> Yes, I have bootstrapped a clean revision r220437 on x86_64-apple-darwin10,
> regtesting in progress.
>
> For the record, I still see the warning
>
> ld: warning: can't add line info to anonymous symbol __const@0 from
> s-arit64.o
presumably a separate issue
- I'm bootstrapping i686-darwin10 (but on a core duo, so not terribly quick).
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug fortran/64947] Internal compiler error: in gimplify_expr, at gimplify.c:8425
2015-02-05 14:26 [Bug fortran/64947] New: Internal compiler error: in gimplify_expr, at gimplify.c:8425 bugs at stellardeath dot org
2015-02-05 14:31 ` [Bug fortran/64947] " bugs at stellardeath dot org
@ 2015-02-05 15:23 ` burnus at gcc dot gnu.org
2015-02-05 15:34 ` [Bug fortran/64947] ICE in gimplify_expr, at gimplify.c:8425 with arrays of type(C_PTR) burnus at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: burnus at gcc dot gnu.org @ 2015-02-05 15:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64947
Tobias Burnus <burnus at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-02-05
CC| |burnus at gcc dot gnu.org
Ever confirmed|0 |1
Known to fail| |4.8.3, 4.9.0, 5.0
--- Comment #2 from Tobias Burnus <burnus at gcc dot gnu.org> ---
If fails for:
8837 gcc_assert (!VOID_TYPE_P (TREE_TYPE (*expr_p)));
which is:
(gdb) p debug_tree(*expr_p)
<mem_ref 0x7ffff20f8ca8
type <void_type 0x7ffff1f4c000 void VOID
align 8 symtab 0 alias set -1 canonical type 0x7ffff1f4c000
pointer_to_this <pointer_type 0x7ffff1f4c150>>
arg 0 <var_decl 0x7ffff1f3cc60 D.3415
type <pointer_type 0x7ffff1f4c150 type <void_type 0x7ffff1f4c000 void>
[...]
arg 1 <integer_cst 0x7ffff1f31fd8 type <pointer_type 0x7ffff1f4c150>
constant 0> foo.f90:40:0>
The variable mentioned appears in the
void * D.3415;
D.3415 = (*strings)[0];
D.3417 = strnlen (*D.3415, 40);
c_string (&pstr.1, MAX_EXPR <(integer(kind=4)) D.3417, 0>, D.3415);
And the problem is that the TREE_TYPE (*expr_p) _is_ a void pointer.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug fortran/64947] ICE in gimplify_expr, at gimplify.c:8425 with arrays of type(C_PTR)
2015-02-05 14:26 [Bug fortran/64947] New: Internal compiler error: in gimplify_expr, at gimplify.c:8425 bugs at stellardeath dot org
2015-02-05 14:31 ` [Bug fortran/64947] " bugs at stellardeath dot org
2015-02-05 15:23 ` burnus at gcc dot gnu.org
@ 2015-02-05 15:34 ` burnus at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: burnus at gcc dot gnu.org @ 2015-02-05 15:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64947
Tobias Burnus <burnus at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|Internal compiler error: in |ICE in gimplify_expr, at
|gimplify_expr, at |gimplify.c:8425 with arrays
|gimplify.c:8425 |of type(C_PTR)
--- Comment #3 from Tobias Burnus <burnus at gcc dot gnu.org> ---
(In reply to Tobias Burnus from comment #2)
> void * D.3415;
> D.3415 = (*strings)[0];
> D.3417 = strnlen (*D.3415, 40);
Namely, the "*D.3415" is the problem. What data type has a "void *" pointer if
it is dereferenced?
We really have to pass D.3415 to strlen - not the derefed temporary variable.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2015-02-05 14:26 [Bug fortran/64947] New: Internal compiler error: in gimplify_expr, at gimplify.c:8425 bugs at stellardeath dot org
2015-02-05 14:31 ` [Bug fortran/64947] " bugs at stellardeath dot org
2015-02-05 15:23 ` burnus at gcc dot gnu.org
2015-02-05 15:34 ` [Bug fortran/64947] ICE in gimplify_expr, at gimplify.c:8425 with arrays of type(C_PTR) burnus at gcc dot gnu.org
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