[Bug fortran/102331] New: ICE in attr_decl1, at fortran/decl.c:8691

[gscfq--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102331

            Bug ID: 102331
           Summary: ICE in attr_decl1, at fortran/decl.c:8691
           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: ---

Affects versions down to at least r5 (type t not defined) :


$ cat z1.f90
class(t) function f()
   allocatable :: f
end


$ cat z2.f90
class(t) function f()
   pointer :: f
end


$ gfortran-12-20210905 -c z1.f90
f951: internal compiler error: Segmentation fault
0xeace0f crash_signal
        ../../gcc/toplev.c:328
0x7882b4 attr_decl1
        ../../gcc/fortran/decl.c:8691
0x7882b4 attr_decl
        ../../gcc/fortran/decl.c:8777
0x7f7db1 match_word
        ../../gcc/fortran/parse.c:65
0x7fd189 decode_statement
        ../../gcc/fortran/parse.c:441
0x7fda8a next_free
        ../../gcc/fortran/parse.c:1384
0x7fda8a next_statement
        ../../gcc/fortran/parse.c:1616
0x7ff2ad parse_spec
        ../../gcc/fortran/parse.c:4164
0x801f9c parse_progunit
        ../../gcc/fortran/parse.c:6114
0x803a37 gfc_parse_file()
        ../../gcc/fortran/parse.c:6669
0x8510ff gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:216