[Bug c++/97974] New: [9/10/11 Regression] ICE tree check: expected overload, have function_decl in get_class_binding_direct, at cp/name-lookup.c:1332

[Bug c++/97974] New: [9/10/11 Regression] ICE tree check: expected overload, have function_decl in get_class_binding_direct, at cp/name-lookup.c:1332

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97974

            Bug ID: 97974
           Summary: [9/10/11 Regression] ICE tree check: expected
                    overload, have function_decl in
                    get_class_binding_direct, at cp/name-lookup.c:1332
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Started with r8 before 20180525 :


$ cat z1.cc
struct {
  struct {
    operator int ();
    int a;
  };
  operator int;
};


$ g++-11-20201122 -c z1.cc
z1.cc:6:12: internal compiler error: tree check: expected overload, have
function_decl in get_class_binding_direct, at cp/name-lookup.c:1332
    6 |   operator int
      |            ^~~
0x6520ba tree_check_failed(tree_node const*, char const*, int, char const*,
...)
        ../../gcc/tree.c:9810
0x7fad5a tree_check(tree_node*, char const*, int, char const*, tree_code)
        ../../gcc/tree.h:3317
0x7fad5a get_class_binding_direct(tree_node*, tree_node*, bool)
        ../../gcc/cp/name-lookup.c:1332
0x8ea66b lookup_field_r
        ../../gcc/cp/search.c:978
0x8e904e dfs_walk_all(tree_node*, tree_node* (*)(tree_node*, void*), tree_node*
(*)(tree_node*, void*), void*)
        ../../gcc/cp/search.c:1408
0x8e91fc lookup_member(tree_node*, tree_node*, int, bool, int,
access_failure_info*)
        ../../gcc/cp/search.c:1121
0x8e95a0 lookup_fnfields(tree_node*, tree_node*, int, int)
        ../../gcc/cp/search.c:1327
0x80aada lookup_name_1
        ../../gcc/cp/name-lookup.c:6587
0x80aada lookup_name(tree_node*, LOOK_where, LOOK_want)
        ../../gcc/cp/name-lookup.c:6665
0x811255 lookup_name(tree_node*, LOOK_want)
        ../../gcc/cp/name-lookup.h:294
0x811255 cp_parser_lookup_name
        ../../gcc/cp/parser.c:28864
0x818615 cp_parser_diagnose_invalid_type_name
        ../../gcc/cp/parser.c:3365
0x84a063 cp_parser_parse_and_diagnose_invalid_type_name
        ../../gcc/cp/parser.c:3619
0x860367 cp_parser_member_declaration
        ../../gcc/cp/parser.c:25456
0x82f722 cp_parser_member_specification_opt
        ../../gcc/cp/parser.c:25306
0x82f722 cp_parser_class_specifier_1
        ../../gcc/cp/parser.c:24395
0x832159 cp_parser_class_specifier
        ../../gcc/cp/parser.c:24706
0x832159 cp_parser_type_specifier
        ../../gcc/cp/parser.c:17962
0x832d86 cp_parser_decl_specifier_seq
        ../../gcc/cp/parser.c:14584
0x8339f1 cp_parser_simple_declaration
        ../../gcc/cp/parser.c:13841

[Bug c++/97974] [9/10/11 Regression] ICE tree check: expected overload, have function_decl in get_class_binding_direct, at cp/name-lookup.c:1332

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97974

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2020-11-25
                 CC|                            |marxin at gcc dot gnu.org,
                   |                            |nathan at gcc dot gnu.org

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Started to ICE with r8-7029-g35129fd3a745403b.

[Bug c++/97974] [9/10/11 Regression] ICE tree check: expected overload, have function_decl in get_class_binding_direct, at cp/name-lookup.c:1332

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97974

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P2
   Target Milestone|---                         |9.4

[Bug c++/97974] [9/10/11 Regression] ICE tree check: expected overload, have function_decl in get_class_binding_direct, at cp/name-lookup.c:1332

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97974

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jason at gcc dot gnu.org
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |jason at gcc dot gnu.org

[Bug c++/97974] [9/10/11 Regression] ICE tree check: expected overload, have function_decl in get_class_binding_direct, at cp/name-lookup.c:1332

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97974

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jason Merrill <jason@gcc.gnu.org>:

https://gcc.gnu.org/g:936d500dfc17f58f2507ecd0f7f26e4f197052ee

commit r11-8120-g936d500dfc17f58f2507ecd0f7f26e4f197052ee
Author: Jason Merrill <jason@redhat.com>
Date:   Sat Apr 10 14:00:15 2021 -0400

    c++: ICE with anonymous union [PR97974]

    Here lookup got confused by finding a conversion operator from
    lookup_anon_field.  Let's avoid this by pruning functions from
    CLASSTYPE_MEMBER_VEC as well as TYPE_FIELDS.

    gcc/cp/ChangeLog:

            PR c++/97974
            * decl.c (fixup_anonymous_aggr): Prune all functions from
            CLASSTYPE_MEMBER_VEC.

    gcc/testsuite/ChangeLog:

            PR c++/97974
            * g++.dg/lookup/pr84962.C: Adjust diagnostic.
            * g++.dg/other/anon-union5.C: New test.

[Bug c++/97974] [9/10 Regression] ICE tree check: expected overload, have function_decl in get_class_binding_direct, at cp/name-lookup.c:1332

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97974

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |11.0
            Summary|[9/10/11 Regression] ICE    |[9/10 Regression] ICE tree
                   |tree check: expected        |check: expected overload,
                   |overload, have              |have function_decl in
                   |function_decl in            |get_class_binding_direct,
                   |get_class_binding_direct,   |at cp/name-lookup.c:1332
                   |at cp/name-lookup.c:1332    |

--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> ---
Fixed for 11 so far.

[Bug c++/97974] [9/10 Regression] ICE tree check: expected overload, have function_decl in get_class_binding_direct, at cp/name-lookup.c:1332

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97974

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jason Merrill <jason@gcc.gnu.org>:

https://gcc.gnu.org/g:58a92b789a77cdade1f41800efebf6e0686f9982

commit r12-298-g58a92b789a77cdade1f41800efebf6e0686f9982
Author: Jason Merrill <jason@redhat.com>
Date:   Sat Apr 10 14:00:15 2021 -0400

    c++: ICE with anonymous union [PR97974]

    While working on the GCC 11 patch, it occurred to me that we could move
    the errors about invalid members from finish_struct_anon_r to here, so we
    properly get a diagnostic in g++.law/union4.C.

    gcc/cp/ChangeLog:

            PR c++/97974
            * class.c (finish_struct_anon_r): Drop complain parm.
            Remove non-field diagnostic.
            (finish_struct_anon): Adjust.
            * decl.c (fixup_anonymous_aggr): Move non-field diagnostic here.

    gcc/testsuite/ChangeLog:

            PR c++/97974
            * g++.old-deja/g++.law/union4.C: Add expected diagnostic.

[Bug c++/97974] [9/10 Regression] ICE tree check: expected overload, have function_decl in get_class_binding_direct, at cp/name-lookup.c:1332

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97974

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|9.4                         |9.5

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 9.4 is being released, retargeting bugs to GCC 9.5.

[Bug c++/97974] [10 Regression] ICE tree check: expected overload, have function_decl in get_class_binding_direct, at cp/name-lookup.c:1332

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97974

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|9.5                         |10.4

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 9 branch is being closed

[Bug c++/97974] [10 Regression] ICE tree check: expected overload, have function_decl in get_class_binding_direct, at cp/name-lookup.c:1332

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97974

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|10.4                        |10.5

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
GCC 10.4 is being released, retargeting bugs to GCC 10.5.

[Bug c++/97974] [10 Regression] ICE tree check: expected overload, have function_decl in get_class_binding_direct, at cp/name-lookup.c:1332

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97974

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
   Target Milestone|10.5                        |11.0
      Known to fail|                            |10.5.0
         Resolution|---                         |FIXED

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed in GCC 11.