[Bug fortran/96086] New: ICE in gfc_match_select_rank, at fortran/match.c:6645

gscfq@t-online.de gcc-bugzilla@gcc.gnu.org
Mon Jul 6 18:00:18 GMT 2020


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96086

            Bug ID: 96086
           Summary: ICE in gfc_match_select_rank, at fortran/match.c:6645
           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: ---

Affects versions r10/r11, with a missing attribute allocatable/pointer :


$ cat z1.f90
subroutine s
   class(*) :: x(..)
   select rank (y => x)
   end select
end


$ cat z2.f90
subroutine s
   type t
   end type
   class(t) :: x(..)
   select rank (y => x)
   end select
end


$ cat z3.f90
program p
   class(*) :: x(..)
   select rank (y => x)
   end select
end


$ gfortran-11-20200705 -c z1.f90
f951: internal compiler error: Segmentation fault
0xbd3bdf crash_signal
        ../../gcc/toplev.c:328
0x69083d gfc_match_select_rank()
        ../../gcc/fortran/match.c:6645
0x6af35e match_word
        ../../gcc/fortran/parse.c:65
0x6af35e decode_statement
        ../../gcc/fortran/parse.c:429
0x6b0b6a next_free
        ../../gcc/fortran/parse.c:1280
0x6b0b6a next_statement
        ../../gcc/fortran/parse.c:1512
0x6b21bb parse_spec
        ../../gcc/fortran/parse.c:3923
0x6b4f8c parse_progunit
        ../../gcc/fortran/parse.c:5852
0x6b6a4c gfc_parse_file()
        ../../gcc/fortran/parse.c:6400
0x70284f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:212


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