[Bug c++/60572] New: [4.9 Regression] ICE deriving from class with invalid member

[Bug c++/60572] New: [4.9 Regression] ICE deriving from class with invalid member

[reichelt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60572

            Bug ID: 60572
           Summary: [4.9 Regression] ICE deriving from class with invalid
                    member
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Keywords: error-recovery, ice-on-invalid-code
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: reichelt at gcc dot gnu.org

The following invalid code snippet triggers an ICE on trunk:

========================
struct A
{
  A x;
  virtual ~A() {}
};

struct B : A
{
  B() : A() {}
};
========================

bug.cc:3:5: error: field 'x' has incomplete type 'A'
   A x;
     ^
bug.cc: In constructor 'B::B()':
bug.cc:9:11: internal compiler error: Segmentation fault
   B() : A() {}
           ^
0xbab3df crash_signal
        ../../gcc/gcc/toplev.c:337
0xb9e5a7 bit_from_pos(tree_node*, tree_node*)
        ../../gcc/gcc/stor-layout.c:784
0x70d066 build_zero_init_1
        ../../gcc/gcc/cp/init.c:200
0x70db00 expand_aggr_init_1
        ../../gcc/gcc/cp/init.c:1768
0x710f30 emit_mem_initializers(tree_node*)
        ../../gcc/gcc/cp/init.c:1087
0x6c6af3 cp_parser_mem_initializer_list
        ../../gcc/gcc/cp/parser.c:12329
0x6c6af3 cp_parser_ctor_initializer_opt
        ../../gcc/gcc/cp/parser.c:12240
0x6c6af3 cp_parser_ctor_initializer_opt_and_function_body
        ../../gcc/gcc/cp/parser.c:18757
0x6cc8b2 cp_parser_function_definition_after_declarator
        ../../gcc/gcc/cp/parser.c:22897
0x6d4c50 cp_parser_late_parsing_for_member
        ../../gcc/gcc/cp/parser.c:23573
0x6ae6e6 cp_parser_class_specifier_1
        ../../gcc/gcc/cp/parser.c:19509
0x6b07b0 cp_parser_class_specifier
        ../../gcc/gcc/cp/parser.c:19533
0x6b07b0 cp_parser_type_specifier
        ../../gcc/gcc/cp/parser.c:14331
0x6c8c80 cp_parser_decl_specifier_seq
        ../../gcc/gcc/cp/parser.c:11567
0x6ce809 cp_parser_simple_declaration
        ../../gcc/gcc/cp/parser.c:11157
0x6b2983 cp_parser_block_declaration
        ../../gcc/gcc/cp/parser.c:11106
0x6d9022 cp_parser_declaration
        ../../gcc/gcc/cp/parser.c:11003
0x6d7d18 cp_parser_declaration_seq_opt
        ../../gcc/gcc/cp/parser.c:10889
0x6d95ca cp_parser_translation_unit
        ../../gcc/gcc/cp/parser.c:4030
0x6d95ca c_parse_file()
        ../../gcc/gcc/cp/parser.c:31645
Please submit a full bug report, [etc.]

[Bug c++/60572] [4.9 Regression] ICE deriving from class with invalid member

[reichelt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60572

Volker Reichelt <reichelt at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |4.5.0, 4.6.0, 4.7.0, 4.8.0
   Target Milestone|---                         |4.9.0
      Known to fail|                            |4.9.0

[Bug c++/60572] [4.9 Regression] ICE deriving from class with invalid member

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60572

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-03-19
                 CC|                            |jakub at gcc dot gnu.org,
                   |                            |jason at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started with r199779.

[Bug c++/60572] [4.9 Regression] ICE deriving from class with invalid member

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60572

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 32386
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32386&action=edit
gcc49-pr60572.patch

Untested fix.  Whether you want to fix it this way not sure.

[Bug c++/60572] [4.9 Regression] ICE deriving from class with invalid member

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60572

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P5

[Bug c++/60572] [4.9 Regression] ICE deriving from class with invalid member

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60572

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Mar 20 19:45:09 2014
New Revision: 208734

URL: http://gcc.gnu.org/viewcvs?rev=208734&root=gcc&view=rev
Log:
    PR c++/60572
    * init.c (build_zero_init_1): Ignore fields with error_mark_node
    type.

    * g++.dg/init/pr60572.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/init/pr60572.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/init.c
    trunk/gcc/testsuite/ChangeLog

[Bug c++/60572] [4.9 Regression] ICE deriving from class with invalid member

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60572

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

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

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed.