[Bug c++/99425] New: [modules] ICE tree check: expected tree_vec, have tree_list in lookup_template_class_1, at cp/pt.c:9803

["alexander.lelyakin at googlemail dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99425

            Bug ID: 99425
           Summary: [modules] ICE tree check: expected tree_vec, have
                    tree_list in lookup_template_class_1, at cp/pt.c:9803
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: alexander.lelyakin at googlemail dot com
  Target Milestone: ---

g++ -std=c++20 -fmodules-ts -x c++-system-header future
g++ -std=c++20 -fmodules-ts -x c++-system-header cuchar
g++ -std=c++20 -fmodules-ts -x c++-system-header system_error
g++ -std=c++20 -fmodules-ts -x c++-system-header mutex
g++ -std=c++20 -fmodules-ts -x c++-system-header list
g++ -std=c++20 -fmodules-ts -x c++-system-header cctype
g++ -std=c++20 -fmodules-ts -x c++-system-header memory_resource
g++ -std=c++20 -fmodules-ts -x c++-system-header deque
g++ -std=c++20 -fmodules-ts -x c++-system-header cstdalign
g++ -std=c++20 -fmodules-ts -x c++-system-header cfloat
g++ -std=c++20 -fmodules-ts -x c++-system-header forward_list
g++ -std=c++20 -fmodules-ts -x c++-system-header atomic
g++ -std=c++20 -fmodules-ts -x c++-system-header chrono
g++ -std=c++20 -fmodules-ts -x c++-system-header valarray
g++ -std=c++20 -fmodules-ts -x c++-system-header iostream
g++ -std=c++20 -fmodules-ts -x c++-system-header fstream
g++ -std=c++20 -fmodules-ts -x c++-system-header cstring
g++ -std=c++20 -fmodules-ts -x c++-system-header cstdbool
g++ -std=c++20 -fmodules-ts -x c++-system-header clocale
g++ -std=c++20 -fmodules-ts -x c++-system-header limits
g++ -std=c++20 -fmodules-ts -x c++-system-header ccomplex
g++ -std=c++20 -fmodules-ts -x c++-system-header typeindex
g++ -std=c++20 -fmodules-ts -x c++-system-header cxxabi.h
g++ -std=c++20 -fmodules-ts -x c++-system-header array
g++ -std=c++20 -fmodules-ts -x c++-system-header ios
g++ -std=c++20 -fmodules-ts -x c++-system-header cstdint
g++ -std=c++20 -fmodules-ts -x c++-system-header streambuf
g++ -std=c++20 -fmodules-ts -x c++-system-header coroutine
g++ -std=c++20 -fmodules-ts -x c++-system-header string
g++ -std=c++20 -fmodules-ts -x c++-system-header sstream
g++ -std=c++20 -fmodules-ts -x c++-system-header ratio
g++ -std=c++20 -fmodules-ts -x c++-system-header new
g++ -std=c++20 -fmodules-ts -x c++-system-header stop_token
g++ -std=c++20 -fmodules-ts -x c++-system-header cfenv
g++ -std=c++20 -fmodules-ts -x c++-system-header queue
g++ -std=c++20 -fmodules-ts -x c++-system-header condition_variable
----
In file included from /usr/local/include/c++/11.0.1/condition_variable:41:
/usr/local/include/c++/11.0.1/bits/unique_lock.h:88:63: internal compiler
error: tree check: expected tree_vec, have tree_list in
lookup_template_class_1, at cp/pt.c:9803
   88 |                     const chrono::time_point<_Clock, _Duration>&
__atime)
      |                                                               ^
0x875966 tree_check_failed(tree_node const*, char const*, int, char const*,
...)
        ../../gcc/gcc/tree.c:9814
0x71d27b tree_check(tree_node*, char const*, int, char const*, tree_code)
        ../../gcc/gcc/tree.h:3353
0x71d27b lookup_template_class_1
        ../../gcc/gcc/cp/pt.c:9803
0xb21d1c lookup_template_class(tree_node*, tree_node*, tree_node*, tree_node*,
int, int)
        ../../gcc/gcc/cp/pt.c:10237
0xb49afb finish_template_type(tree_node*, tree_node*, int)
        ../../gcc/gcc/cp/semantics.c:3498
0xabbd21 cp_parser_template_id
        ../../gcc/gcc/cp/parser.c:17444
0xabbf0b cp_parser_class_name
        ../../gcc/gcc/cp/parser.c:24671
0xab349a cp_parser_qualifying_entity
        ../../gcc/gcc/cp/parser.c:6994
0xab349a cp_parser_nested_name_specifier_opt
        ../../gcc/gcc/cp/parser.c:6676
0xac8bf4 cp_parser_simple_type_specifier
        ../../gcc/gcc/cp/parser.c:18837
0xaa798d cp_parser_type_specifier
        ../../gcc/gcc/cp/parser.c:18495
0xaa8989 cp_parser_decl_specifier_seq
        ../../gcc/gcc/cp/parser.c:15041
0xac37ae cp_parser_parameter_declaration
        ../../gcc/gcc/cp/parser.c:23731
0xac4182 cp_parser_parameter_declaration_list
        ../../gcc/gcc/cp/parser.c:23548
0xac45d1 cp_parser_parameter_declaration_clause
        ../../gcc/gcc/cp/parser.c:23475
0xab5713 cp_parser_direct_declarator
        ../../gcc/gcc/cp/parser.c:22124
0xab5713 cp_parser_declarator
        ../../gcc/gcc/cp/parser.c:21987
0xacc958 cp_parser_init_declarator
        ../../gcc/gcc/cp/parser.c:21485
0xad378b cp_parser_single_declaration
        ../../gcc/gcc/cp/parser.c:30493
0xad38f6 cp_parser_template_declaration_after_parameters
        ../../gcc/gcc/cp/parser.c:30065
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----
g++ (GCC) 11.0.1 20210305 (experimental)
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