[Bug fortran/71203] New: ICE in add_init_expr_to_sym, at fortran/decl.c:1512 and :1564

[gerhard.steinmetz.fort...@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71203

            Bug ID: 71203
           Summary: ICE in add_init_expr_to_sym, at fortran/decl.c:1512
                    and :1564
           Product: gcc
           Version: 6.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gerhard.steinmetz.fort...@t-online.de
  Target Milestone: ---

While exploring "source space" around pr68019 and pr68154,
another issue came into focus :


$ cat z1.f90
program p
   character(3), parameter :: a(4) = ' '
   character(*), parameter :: x(0) = a(2:1)
end

$ gfortran-6 z1.f90
f951: internal compiler error: in add_init_expr_to_sym, at fortran/decl.c:1512



$ cat z2.f90
program p
   character(3), parameter :: a(4) = ' '
   character(*), parameter :: x(*) = a(2:1)
end

$ gfortran-6 z2.f90
f951: internal compiler error: in add_init_expr_to_sym, at fortran/decl.c:1512



$ cat z3.f90
program p
   character(*), parameter :: a(4) = ' '
   character(*), parameter :: x(*) = a(1:2)(3:1)
end

$ gfortran-6 z3.f90
*** Error in `/usr/lib64/gcc/x86_64-suse-linux/6/f951': malloc(): memory
corruption: 0x00000000032ff390 ***