https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113377
--- Comment #4 from anlauf at gcc dot gnu.org --- (In reply to anlauf from comment #3) > However, > > integer, allocatable,optional :: j > > still does not work: the code *in* the generated loop looks fine to me, but > the scalarizer dereferences j before the loop. Note that the following scalar example also fails: program p implicit none integer :: k = 1 call one (k) contains subroutine one (i, j) integer, intent(in) :: i ! integer ,optional :: j integer, allocatable,optional :: j if (present (j)) error stop "j is present" call two (i, j) end elemental subroutine two (i, j) integer, intent(in) :: i ! integer, value, optional :: j integer, intent(in), optional :: j if (present (j)) error stop 99 end end In subroutine one the if-statement is properly translated, but "call two" mishandles the optional argument j when it is allocatable.