[Bug c++/113674] New: [[____attr____]] causes internal compiler error: in decl_attributes, at attribs.cc:776

["mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113674

            Bug ID: 113674
           Summary: [[____attr____]] causes internal compiler error: in
                    decl_attributes, at attribs.cc:776
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mpolacek at gcc dot gnu.org
  Target Milestone: ---

[[____noreturn____]] int
g (int i)
{
  return i;
}

causes (both cc1 and cc1plus):

q.C:2:9: internal compiler error: in decl_attributes, at attribs.cc:776
    2 | g (int i)
      |         ^
0x1209fe5 decl_attributes(tree_node**, tree_node*, int, tree_node*)
        /home/mpolacek/src/gcc/gcc/attribs.cc:776
0xeed5cd cplus_decl_attributes(tree_node**, tree_node*, int)
        /home/mpolacek/src/gcc/gcc/cp/decl2.cc:1880
0xeb8604 grokfndecl
        /home/mpolacek/src/gcc/gcc/cp/decl.cc:10973
0xec6a60 grokdeclarator(cp_declarator const*, cp_decl_specifier_seq*,
decl_context, int, tree_node**)
        /home/mpolacek/src/gcc/gcc/cp/decl.cc:15063
0xed73ad start_function(cp_decl_specifier_seq*, cp_declarator const*,
tree_node*)
        /home/mpolacek/src/gcc/gcc/cp/decl.cc:18159
0x10563ef cp_parser_function_definition_from_specifiers_and_declarator
        /home/mpolacek/src/gcc/gcc/cp/parser.cc:32573
0x1042ac8 cp_parser_init_declarator
        /home/mpolacek/src/gcc/gcc/cp/parser.cc:23356
0x1034027 cp_parser_simple_declaration
        /home/mpolacek/src/gcc/gcc/cp/parser.cc:15890
0x1033b9d cp_parser_block_declaration
        /home/mpolacek/src/gcc/gcc/cp/parser.cc:15709
0x103379d cp_parser_declaration
        /home/mpolacek/src/gcc/gcc/cp/parser.cc:15563
0x103387d cp_parser_toplevel_declaration
        /home/mpolacek/src/gcc/gcc/cp/parser.cc:15584
0x101ac64 cp_parser_translation_unit
        /home/mpolacek/src/gcc/gcc/cp/parser.cc:5276
0x1092a8f c_parse_file()
        /home/mpolacek/src/gcc/gcc/cp/parser.cc:51174
0x12a67d8 c_common_parse_file()
        /home/mpolacek/src/gcc/gcc/c-family/c-opts.cc:1301