[Bug fortran/103609] New: [11/12 Regression] ICE in gfc_sym_get_dummy_args, at fortran/symbol.c:5243

[gscfq--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103609

            Bug ID: 103609
           Summary: [11/12 Regression] ICE in gfc_sym_get_dummy_args, at
                    fortran/symbol.c:5243
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gs...@t-online.de
  Target Milestone: ---

Changed between 20200726 and 20200809 :
(gcc configured with --enable-checking=yes)


$ cat z1.f90
program p
   implicit none
   integer :: i
   do i = 1, 2
      call s
   end do
contains
   subroutine s
      integer :: n
      call n
   end
end


$ gfortran-12-20211205 -c z1.f90
z1.f90:9:18:

    9 |       integer :: n
      |                  1
   10 |       call n
      |            2
Error: 'n' at (1) has a type, which is not consistent with the CALL at (2)
f951: internal compiler error: Segmentation fault
0xf0b99f crash_signal
        ../../gcc/toplev.c:322
0x87f8f0 gfc_sym_get_dummy_args(gfc_symbol*)
        ../../gcc/fortran/symbol.c:5243
0x94ec51 doloop_contained_procedure_code
        ../../gcc/fortran/frontend-passes.c:2483
0x954519 gfc_code_walker(gfc_code**, int (*)(gfc_code**, int*, void*), int
(*)(gfc_expr**, int*, void*), void*)
        ../../gcc/fortran/frontend-passes.c:5333
0x956a32 doloop_code
        ../../gcc/fortran/frontend-passes.c:2627
0x954519 gfc_code_walker(gfc_code**, int (*)(gfc_code**, int*, void*), int
(*)(gfc_expr**, int*, void*), void*)
        ../../gcc/fortran/frontend-passes.c:5333
0x954697 gfc_code_walker(gfc_code**, int (*)(gfc_code**, int*, void*), int
(*)(gfc_expr**, int*, void*), void*)
        ../../gcc/fortran/frontend-passes.c:5669
0x95570b doloop_warn
        ../../gcc/fortran/frontend-passes.c:3059
0x955c5a gfc_run_passes(gfc_namespace*)
        ../../gcc/fortran/frontend-passes.c:156
0x856467 gfc_resolve(gfc_namespace*)
        ../../gcc/fortran/resolve.c:17572
0x83e764 resolve_all_program_units
        ../../gcc/fortran/parse.c:6586
0x83e764 gfc_parse_file()
        ../../gcc/fortran/parse.c:6842
0x88c73f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:216