[Bug fortran/71067] New: ICE on data initialization with insufficient value or wrong boz-constants

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71067

            Bug ID: 71067
           Summary: ICE on data initialization with insufficient value or
                    wrong boz-constants
           Product: gcc
           Version: 6.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gerhard.steinmetz.fortran@t-online.de
  Target Milestone: ---

With a missing parameter attribute, or value not initialized :

$ cat z1.f90
program p
   integer :: i = 0
   integer :: z(2)
   data z /2*i/
end

$ gfortran-6 z1.f90
f951: internal compiler error: free_expr0(): Bad expr type



$ cat z2.f90
program p
   integer :: i, z(2)
   data z /2*i/
end

$ gfortran-6 z2.f90
f951: internal compiler error: free_expr0(): Bad expr type



Incidentally observed, with wrong boz-constants :

$ cat z4.f90
program p
   integer :: a(2), b(2), c(2)
   data a /2*b1'/
   data b /2*o1'
   data c /2*z1
end

$ gfortran-6 z4.f90
f951: internal compiler error: free_expr0(): Bad expr type