[Bug c++/101730] New: [10/11/12 Regression] ICE in cp_parser_ctor_initializer_opt_and_function_body, at cp/parser.c:24549

[gscfq--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101730

            Bug ID: 101730
           Summary: [10/11/12 Regression] ICE in
                    cp_parser_ctor_initializer_opt_and_function_body, at
                    cp/parser.c:24549
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gs...@t-online.de
  Target Milestone: ---

Changed between 20200509 and 20200613 :


$ cat z1.cc
struct A {
  A() {};
  void foo (auto arg) requires({});
};


$ g++-12-20210801 -c z1.cc -std=c++20
z1.cc:3:31: error: statement-expressions are not allowed outside functions nor
in template-argument lists
    3 |   void foo (auto arg) requires({});
      |                               ^
z1.cc:2:7: internal compiler error: Segmentation fault
    2 |   A() {};
      |       ^
0x103188f crash_signal
        ../../gcc/toplev.c:328
0x8de62c cp_parser_ctor_initializer_opt_and_function_body
        ../../gcc/cp/parser.c:24549
0x8df37a cp_parser_function_definition_after_declarator
        ../../gcc/cp/parser.c:30658
0x8df85c cp_parser_late_parsing_for_member
        ../../gcc/cp/parser.c:31565
0x8b557a cp_parser_class_specifier_1
        ../../gcc/cp/parser.c:25651
0x8b6a22 cp_parser_class_specifier
        ../../gcc/cp/parser.c:25675
0x8b6a22 cp_parser_type_specifier
        ../../gcc/cp/parser.c:18909
0x8b76f6 cp_parser_decl_specifier_seq
        ../../gcc/cp/parser.c:15510
0x8b8381 cp_parser_simple_declaration
        ../../gcc/cp/parser.c:14766
0x8e728e cp_parser_declaration
        ../../gcc/cp/parser.c:14592
0x8e7eb5 cp_parser_translation_unit
        ../../gcc/cp/parser.c:4960
0x8e7eb5 c_parse_file()
        ../../gcc/cp/parser.c:46179
0xa674d2 c_common_parse_file()
        ../../gcc/c-family/c-opts.c:1223