[Bug fortran/95826] New: ICE in gfc_match_decl_type_spec, at fortran/decl.c:4290

[gs...@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95826

            Bug ID: 95826
           Summary: ICE in gfc_match_decl_type_spec, at
                    fortran/decl.c:4290
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gs...@t-online.de
  Target Milestone: ---

Moving on, this happens between name length 60 (ok) and 61 (ICE) :


$ cat z1_60.f90
program p
   type t23456789012345678901234567890123456789012345678901234567890 &
       (a23456789012345678901234567890123456789012345678901234567890, &
        b23456789012345678901234567890123456789012345678901234567890)
      integer, kind ::
a23456789012345678901234567890123456789012345678901234567890
      integer, len :: 
b23456789012345678901234567890123456789012345678901234567890
   end type
   integer, parameter ::
n23456789012345678901234567890123456789012345678901234567890 = 16
   type (t23456789012345678901234567890123456789012345678901234567890 &
      (n23456789012345678901234567890123456789012345678901234567890, :)), &
      allocatable ::
x23456789012345678901234567890123456789012345678901234567890
end


$ cat z1_61.f90
program p
   type t234567890123456789012345678901234567890123456789012345678901 &
       (a234567890123456789012345678901234567890123456789012345678901, &
        b234567890123456789012345678901234567890123456789012345678901)
      integer, kind ::
a234567890123456789012345678901234567890123456789012345678901
      integer, len :: 
b234567890123456789012345678901234567890123456789012345678901
   end type
   integer, parameter ::
n234567890123456789012345678901234567890123456789012345678901 = 16
   type (t234567890123456789012345678901234567890123456789012345678901 &
      (n234567890123456789012345678901234567890123456789012345678901, :)), &
      allocatable ::
x234567890123456789012345678901234567890123456789012345678901
end


$ cat z1_63.f90
program p
   type t23456789012345678901234567890123456789012345678901234567890123 &
       (a23456789012345678901234567890123456789012345678901234567890123, &
        b23456789012345678901234567890123456789012345678901234567890123)
      integer, kind ::
a23456789012345678901234567890123456789012345678901234567890123
      integer, len :: 
b23456789012345678901234567890123456789012345678901234567890123
   end type
   integer, parameter ::
n23456789012345678901234567890123456789012345678901234567890123 = 16
   type (t23456789012345678901234567890123456789012345678901234567890123 &
        (n23456789012345678901234567890123456789012345678901234567890123, :)),
&
      allocatable ::
x23456789012345678901234567890123456789012345678901234567890123
end


$ gfortran-11-20200621 -c z1_60.f90
$
$ gfortran-11-20200621 -c z1_61.f90
f951: internal compiler error: in gfc_match_decl_type_spec, at
fortran/decl.c:4290
0x64849f gfc_match_decl_type_spec(gfc_typespec*, int)
        ../../gcc/fortran/decl.c:4290
0x6491dc gfc_match_data_decl()
        ../../gcc/fortran/decl.c:6124
0x6ad323 match_word
        ../../gcc/fortran/parse.c:65
0x6ad323 decode_statement
        ../../gcc/fortran/parse.c:376
0x6aed6a next_free
        ../../gcc/fortran/parse.c:1280
0x6aed6a next_statement
        ../../gcc/fortran/parse.c:1512
0x6b03bb parse_spec
        ../../gcc/fortran/parse.c:3923
0x6b318c parse_progunit
        ../../gcc/fortran/parse.c:5852
0x6b4869 gfc_parse_file()
        ../../gcc/fortran/parse.c:6393
0x70098f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:212