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Subject: [Bug fortran/104625] New: ICE in fixup_array_ref, at
 fortran/resolve.cc:9275
Date: Mon, 21 Feb 2022 21:32:16 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104625

            Bug ID: 104625
           Summary: ICE in fixup_array_ref, at fortran/resolve.cc:9275
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Started with r10, changed between 20190825 and 20190901 :
(in addition to pr104555)


$ cat z1.f90
program p
   type t
      integer :: a
   end type
contains
   subroutine s(x)
      class(t) :: x(..)
      select rank (y =3D> x)
      rank (1)
         select type (z =3D> (y))
         type is (t)
         end select
      end select
   end
end


$ gfortran-12-20220220 -c z1.f90
f951: internal compiler error: Segmentation fault
0xcc909f crash_signal
        ../../gcc/toplev.cc:322
0x75b75a fixup_array_ref
        ../../gcc/fortran/resolve.cc:9275
0x773e24 resolve_select_type
        ../../gcc/fortran/resolve.cc:9530
0x768f13 gfc_resolve_code(gfc_code*, gfc_namespace*)
        ../../gcc/fortran/resolve.cc:12173
0x76af77 resolve_codes
        ../../gcc/fortran/resolve.cc:17536
0x76b03e gfc_resolve(gfc_namespace*)
        ../../gcc/fortran/resolve.cc:17571
0x769089 gfc_resolve(gfc_namespace*)
        ../../gcc/fortran/resolve.cc:17556
0x769089 resolve_block_construct
        ../../gcc/fortran/resolve.cc:10791
0x769089 gfc_resolve_code(gfc_code*, gfc_namespace*)
        ../../gcc/fortran/resolve.cc:12181
0x7682df gfc_resolve_blocks(gfc_code*, gfc_namespace*)
        ../../gcc/fortran/resolve.cc:10943
0x76a2cf resolve_select_rank
        ../../gcc/fortran/resolve.cc:9953
0x76a2cf gfc_resolve_code(gfc_code*, gfc_namespace*)
        ../../gcc/fortran/resolve.cc:12177
0x76af77 resolve_codes
        ../../gcc/fortran/resolve.cc:17536
0x76aeae resolve_codes
        ../../gcc/fortran/resolve.cc:17519
0x76b03e gfc_resolve(gfc_namespace*)
        ../../gcc/fortran/resolve.cc:17571
0x753364 resolve_all_program_units
        ../../gcc/fortran/parse.cc:6586
0x753364 gfc_parse_file()
        ../../gcc/fortran/parse.cc:6842
0x7a0a5f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.cc:216=