[Bug c++/108437] New: [13 Regression] ICE in build_min_non_dep_op_overload, at cp/tree.cc:3710

["gscfq@t-online.de" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108437

            Bug ID: 108437
           Summary: [13 Regression] ICE in build_min_non_dep_op_overload,
                    at cp/tree.cc:3710
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Started between 20221106 and 20221120, with -std=c++23 :


$ cat z1.cc
struct S
{
  static int operator[] (int x) { int a[2]; return a[x]; }
};
template<class T> int f ()
{
  S s;
  s[0]++;
  return 0;
}


$ g++-13-20230115 -c z1.cc -std=c++23
z1.cc: In function 'int f()':
z1.cc:8:6: internal compiler error: in build_min_non_dep_op_overload, at
cp/tree.cc:3710
    8 |   s[0]++;
      |      ^
0xb397f7 build_min_non_dep_op_overload(tree_code, tree_node*, tree_node*, ...)
        ../../gcc/cp/tree.cc:3710
0x92b620 grok_array_decl(unsigned int, tree_node*, tree_node*, vec<tree_node*,
va_gc, vl_embed>**, int)
        ../../gcc/cp/decl2.cc:577
0xa17963 cp_parser_postfix_open_square_expression
        ../../gcc/cp/parser.cc:8177
0xa2b2de cp_parser_postfix_expression
        ../../gcc/cp/parser.cc:7768
0xa44ddf cp_parser_unary_expression
        ../../gcc/cp/parser.cc:9095
0xa106ef cp_parser_cast_expression
        ../../gcc/cp/parser.cc:9999
0xa1101f cp_parser_binary_expression
        ../../gcc/cp/parser.cc:10101
0xa11da4 cp_parser_assignment_expression
        ../../gcc/cp/parser.cc:10444
0xa14362 cp_parser_expression
        ../../gcc/cp/parser.cc:10614
0xa18577 cp_parser_expression_statement
        ../../gcc/cp/parser.cc:12758
0xa26ae1 cp_parser_statement
        ../../gcc/cp/parser.cc:12538
0xa27de4 cp_parser_statement_seq_opt
        ../../gcc/cp/parser.cc:12909
0xa27ec7 cp_parser_compound_statement
        ../../gcc/cp/parser.cc:12861
0xa51d90 cp_parser_function_body
        ../../gcc/cp/parser.cc:25280
0xa51d90 cp_parser_ctor_initializer_opt_and_function_body
        ../../gcc/cp/parser.cc:25331
0xa5240a cp_parser_function_definition_after_declarator
        ../../gcc/cp/parser.cc:31953
0xa5393c cp_parser_function_definition_from_specifiers_and_declarator
        ../../gcc/cp/parser.cc:31870
0xa5393c cp_parser_init_declarator
        ../../gcc/cp/parser.cc:22734
0xa5713f cp_parser_single_declaration
        ../../gcc/cp/parser.cc:32470
0xa572a6 cp_parser_template_declaration_after_parameters
        ../../gcc/cp/parser.cc:32023