[Bug middle-end/60085] ICE in get_frame_type on weird code

[Bug middle-end/60085] ICE in get_frame_type on weird code

[mpolacek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60085

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Even gcc34 ICEs on this, not a regression.

[Bug middle-end/60085] New: ICE in get_frame_type on weird code

[mpolacek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60085

            Bug ID: 60085
           Summary: ICE in get_frame_type on weird code
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mpolacek at gcc dot gnu.org

void
foo (void)
{
  void weirdo (a)
    char a[({ char b = 0; b; })];
  {
  }
}

$ ./cc1 -quiet weirdo.c
weirdo.c: In function ‘foo’:
weirdo.c:2:1: internal compiler error: Segmentation fault
 foo (void)
 ^
0xb40cf1 crash_signal
    /home/marek/src/gcc/gcc/toplev.c:337
0xbd9b8f get_frame_type
    /home/marek/src/gcc/gcc/tree-nested.c:234
0xbda267 get_chain_decl
    /home/marek/src/gcc/gcc/tree-nested.c:342
0xbdb919 get_nonlocal_debug_decl
    /home/marek/src/gcc/gcc/tree-nested.c:856
0xbdc017 convert_nonlocal_reference_op
    /home/marek/src/gcc/gcc/tree-nested.c:934
0xdffd3d walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, pointer_set_t*, tree_node* (*)(tree_node**, int*, tree_node*
(*)(tree_node**, int*, void*), void*, pointer_set_t*))
    /home/marek/src/gcc/gcc/tree.c:10920
0x8d0496 walk_gimple_op(gimple_statement_base*, tree_node* (*)(tree_node**,
int*, void*), walk_stmt_info*)
    /home/marek/src/gcc/gcc/gimple-walk.c:221
0x8d1093 walk_gimple_stmt(gimple_stmt_iterator*, tree_node*
(*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**,
int*, void*), walk_stmt_info*)
    /home/marek/src/gcc/gcc/gimple-walk.c:535
0x8cfcfe walk_gimple_seq_mod(gimple_statement_base**, tree_node*
(*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**,
int*, void*), walk_stmt_info*)
    /home/marek/src/gcc/gcc/gimple-walk.c:58
0x8d10eb walk_gimple_stmt(gimple_stmt_iterator*, tree_node*
(*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**,
int*, void*), walk_stmt_info*)
    /home/marek/src/gcc/gcc/gimple-walk.c:545
0x8cfcfe walk_gimple_seq_mod(gimple_statement_base**, tree_node*
(*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**,
int*, void*), walk_stmt_info*)
    /home/marek/src/gcc/gcc/gimple-walk.c:58
0x8d10eb walk_gimple_stmt(gimple_stmt_iterator*, tree_node*
(*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**,
int*, void*), walk_stmt_info*)
    /home/marek/src/gcc/gcc/gimple-walk.c:545
0x8cfcfe walk_gimple_seq_mod(gimple_statement_base**, tree_node*
(*)(gimple_stmt_iterator*, bool*, walk_stmt_info*), tree_node* (*)(tree_node**,
int*, void*), walk_stmt_info*)
    /home/marek/src/gcc/gcc/gimple-walk.c:58
0xbdafff walk_body
    /home/marek/src/gcc/gcc/tree-nested.c:603
0xbdb041 walk_function
    /home/marek/src/gcc/gcc/tree-nested.c:614
0xbdb382 walk_all_functions
    /home/marek/src/gcc/gcc/tree-nested.c:679
0xbe1f85 lower_nested_functions(tree_node*)
    /home/marek/src/gcc/gcc/tree-nested.c:2724
0x71b6e4 analyze_function
    /home/marek/src/gcc/gcc/cgraphunit.c:656
0x71c793 analyze_functions
    /home/marek/src/gcc/gcc/cgraphunit.c:1017
0x71ff46 finalize_compilation_unit()
    /home/marek/src/gcc/gcc/cgraphunit.c:2320
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.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idV458

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |mpolacek at gcc dot gnu.org
         Resolution|---                         |FIXED

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
We have ASAN, so "fixed".

[Bug middle-end/60085] ICE in get_frame_type on weird code

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60085

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |8.5.0
      Known to work|                            |10.1.0, 9.1.0

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The testcase in comment #0 started to be rejected in GCC 9.
The testcase in comment #3 was spun out in PR 103679

[Bug middle-end/60085] ICE in get_frame_type on weird code

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60085

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #5)
> The testcase in comment #0 started to be rejected in GCC 9.

And that is a dup of bug 30552. So closing as such.

*** This bug has been marked as a duplicate of bug 30552 ***

[Bug middle-end/60085] ICE in get_frame_type on weird code

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60085

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=98621

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #5)
> The testcase in comment #3 was spun out in PR 103679

Actually it was already filed as PR 98621.