[Bug fortran/99036] New: [11 Regression] ICE in gfc_current_interface_head, at fortran/interface.c:4699

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99036

            Bug ID: 99036
           Summary: [11 Regression] ICE in gfc_current_interface_head, at
                    fortran/interface.c:4699
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Changed between 20210117 and 20210124 :


$ cat z1.f90
module m
contains
   module procedure s
   end
end


$ gfortran-11-20210117 -c z1.f90
z1.f90:3:20:

    3 |    module procedure s
      |                    1
Error: MODULE PROCEDURE at (1) must be in a generic module interface


$ gfortran-11-20210207 -c z1.f90
f951: internal compiler error: in gfc_current_interface_head, at
fortran/interface.c:4699
0x69b474 gfc_current_interface_head()
        ../../gcc/fortran/interface.c:4699
0x6777e5 gfc_match_modproc()
        ../../gcc/fortran/decl.c:9883
0x6db9c1 match_word
        ../../gcc/fortran/parse.c:65
0x6dfe30 decode_statement
        ../../gcc/fortran/parse.c:522
0x6e097c next_free
        ../../gcc/fortran/parse.c:1316
0x6e097c next_statement
        ../../gcc/fortran/parse.c:1548
0x6e511c parse_contained
        ../../gcc/fortran/parse.c:5743
0x6e5fd7 parse_module
        ../../gcc/fortran/parse.c:6170
0x6e6307 gfc_parse_file()
        ../../gcc/fortran/parse.c:6473
0x732e7f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:212