[Bug c++/72774] New: ICE on invalid C++ code on x86_64-linux-gnu (tree check: expected tree that contains ‘decl minimal’ structure, have ‘tree_list’ in consider_binding_level, at cp/name-lookup.c:4721)

["chengniansun at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72774

            Bug ID: 72774
           Summary: ICE on invalid C++ code on x86_64-linux-gnu (tree
                    check: expected tree that contains ‘decl minimal’
                    structure, have ‘tree_list’ in consider_binding_level,
                    at cp/name-lookup.c:4721)
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: chengniansun at gmail dot com
  Target Milestone: ---

$ g++-trunk -v
Using built-in specs.
COLLECT_GCC=g++-trunk
COLLECT_LTO_WRAPPER=/usr/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/7.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-source-trunk/configure --enable-languages=c,c++,lto
--prefix=/usr/local/gcc-trunk --disable-bootstrap
Thread model: posix
gcc version 7.0.0 20160802 (experimental) [trunk revision 238976] (GCC) 
$ g++-trunk small.C
small.C: In function ‘void bar()’:
small.C:7:19: internal compiler error: tree check: expected tree that contains
‘decl minimal’ structure, have ‘tree_list’ in consider_binding_level, at
cp/name-lookup.c:4721
   0 ? static_cast<g>(0) : __assert_fail;
                   ^
0x103eed4 tree_contains_struct_check_failed(tree_node const*,
tree_node_structure_enum, char const*, int, char const*)
        ../../gcc-source-trunk/gcc/tree.c:9914
0x87cb28 contains_struct_check(tree_node*, tree_node_structure_enum, char
const*, int, char const*)
        ../../gcc-source-trunk/gcc/tree.h:3137
0x87cb28 consider_binding_level
        ../../gcc-source-trunk/gcc/cp/name-lookup.c:4721
0x88272a lookup_name_fuzzy(tree_node*, lookup_name_fuzzy_kind)
        ../../gcc-source-trunk/gcc/cp/name-lookup.c:4742
0x791d5d cp_parser_diagnose_invalid_type_name
        ../../gcc-source-trunk/gcc/cp/parser.c:3168
0x7b437d cp_parser_parse_and_diagnose_invalid_type_name
        ../../gcc-source-trunk/gcc/cp/parser.c:3327
0x7a0317 cp_parser_type_specifier_seq
        ../../gcc-source-trunk/gcc/cp/parser.c:20107
0x7aaa62 cp_parser_type_id_1
        ../../gcc-source-trunk/gcc/cp/parser.c:19957
0x7a2b99 cp_parser_postfix_expression
        ../../gcc-source-trunk/gcc/cp/parser.c:6406
0x7a0c8c cp_parser_unary_expression
        ../../gcc-source-trunk/gcc/cp/parser.c:8012
0x7aac27 cp_parser_cast_expression
        ../../gcc-source-trunk/gcc/cp/parser.c:8689
0x7ab1db cp_parser_binary_expression
        ../../gcc-source-trunk/gcc/cp/parser.c:8790
0x7abaa0 cp_parser_assignment_expression
        ../../gcc-source-trunk/gcc/cp/parser.c:9077
0x7ae3fa cp_parser_expression
        ../../gcc-source-trunk/gcc/cp/parser.c:9246
0x7abbbd cp_parser_question_colon_clause
        ../../gcc-source-trunk/gcc/cp/parser.c:9020
0x7abbbd cp_parser_assignment_expression
        ../../gcc-source-trunk/gcc/cp/parser.c:9083
0x7ae3fa cp_parser_expression
        ../../gcc-source-trunk/gcc/cp/parser.c:9246
0x7ae9a3 cp_parser_expression_statement
        ../../gcc-source-trunk/gcc/cp/parser.c:10709
0x7bdcc6 cp_parser_statement
        ../../gcc-source-trunk/gcc/cp/parser.c:10560
0x7be6ac cp_parser_statement_seq_opt
        ../../gcc-source-trunk/gcc/cp/parser.c:10832
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.
$ cat small.C
void __assert_fail();
namespace A {
void g();
}
void bar() {
  using A::g;
  0 ? static_cast<g>(0) : __assert_fail;
}
$