[Bug fortran/65548] New: [5.0 Regression] gfc_conv_procedure_call

["juergen.reuter at desy dot de" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65548

            Bug ID: 65548
           Summary: [5.0 Regression]  gfc_conv_procedure_call
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: juergen.reuter at desy dot de

The following code
{{{
module selectors
  type :: selector_t
     integer, dimension(:), allocatable :: map
     real, dimension(:), allocatable :: weight
   contains
     procedure :: init => selector_init
end type selector_t


contains

  subroutine selector_init (selector, weight)
    class(selector_t), intent(out) :: selector
    real, dimension(:), intent(in) :: weight
    real :: s
    integer :: n, i
    logical, dimension(:), allocatable :: mask
    s = sum (weight)
    allocate (mask (size (weight)), source = weight /= 0)
    n = count (mask)
    if (n > 0) then
       allocate (selector%map (n), &
            source = pack ([(i, i = 1, size (weight))], mask))
       allocate (selector%weight (n), &
            source = pack (weight / s, mask))
    else
       allocate (selector%map (1), source = 1)
       allocate (selector%weight (1), source = 0.)
    end if
  end subroutine selector_init

end module selectors
}}}

yields an ICE with gfortran 5.0 trunk:
$ gfortran -c selectors.f90 
selectors.f90:23:0:

             source = pack ([(i, i = 1, size (weight))], mask))
 1
internal compiler error: in gfc_conv_procedure_call, at
fortran/trans-expr.c:5608

selectors.f90:23:0: internal compiler error: Abort trap: 6
gfortran: internal compiler error: Abort trap: 6 (program f951)

My gcc version is r221644 from the trunk, a version from ca. March 4th or 5th
did still work.