[Bug c++/104623] New: [11/12 Regression] ICE in cp_parser_skip_to_pragma_eol, at cp/parser.cc:4107

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104623

            Bug ID: 104623
           Summary: [11/12 Regression] ICE in
                    cp_parser_skip_to_pragma_eol, at cp/parser.cc:4107
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Started between 20200712 and 20200719 :


$ cat z1.cc
void f ()
{
  struct __attribute__() a
  #pragma omp task
}


$ g++-12-20220220 -c z1.cc -fopenmp
z1.cc: In function 'void f()':
z1.cc:5:1: internal compiler error: in cp_parser_skip_to_pragma_eol, at
cp/parser.cc:4107
    5 | }
      | ^
0x8e6af9 cp_parser_skip_to_pragma_eol
        ../../gcc/cp/parser.cc:4107
0x8e6e12 cp_parser_skip_to_end_of_statement
        ../../gcc/cp/parser.cc:394q3
0x8fc7b4 cp_parser_gnu_attributes_opt
        ../../gcc/cp/parser.cc:28676
0x92749b cp_parser_elaborated_type_specifier
        ../../gcc/cp/parser.cc:20341
0x908cf3 cp_parser_type_specifier
        ../../gcc/cp/parser.cc:19375
0x909e06 cp_parser_decl_specifier_seq
        ../../gcc/cp/parser.cc:15911
0x90aa81 cp_parser_simple_declaration
        ../../gcc/cp/parser.cc:15159
0x90c779 cp_parser_declaration_statement
        ../../gcc/cp/parser.cc:14367
0x90ce9b cp_parser_statement
        ../../gcc/cp/parser.cc:12452
0x90def4 cp_parser_statement_seq_opt
        ../../gcc/cp/parser.cc:12856
0x90dfd7 cp_parser_compound_statement
        ../../gcc/cp/parser.cc:12808
0x934560 cp_parser_function_body
        ../../gcc/cp/parser.cc:25062
0x934560 cp_parser_ctor_initializer_opt_and_function_body
        ../../gcc/cp/parser.cc:25113
0x934bda cp_parser_function_definition_after_declarator
        ../../gcc/cp/parser.cc:31243
0x935e64 cp_parser_function_definition_from_specifiers_and_declarator
        ../../gcc/cp/parser.cc:31159
0x935e64 cp_parser_init_declarator
        ../../gcc/cp/parser.cc:22584
0x90abe2 cp_parser_simple_declaration
        ../../gcc/cp/parser.cc:15286
0x93d40e cp_parser_declaration
        ../../gcc/cp/parser.cc:14972
0x93df8d cp_parser_translation_unit
        ../../gcc/cp/parser.cc:5012
0x93df8d c_parse_file()
        ../../gcc/cp/parser.cc:48051