https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103312
--- Comment #7 from Paul Thomas <pault at gcc dot gnu.org> --- Created attachment 58231 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58231&action=edit Preliminary fix for this PR I went back to the beginning on this problem, having realised that it is far too early to resolve the compcall of a class argument in gfc_reduce_init_expr. Hence the chunk in expr.cc. The second chunk is (possibly) a bit of a kludge and, I would have thought, should be checked, at very least by checking that the class extends an abstract type. I will come back to this - yard duty calls! A reduced test case, without the module 'example' and no type extension also failed and is now fixed. Also failing in this reduced testcase was: function func (this) result (string) class(bar) :: this character (:), allocatable :: string allocate (character(this%size()) :: string) string = repeat ("x", len (string)) end function Again, this is fixed. Finally, the patch even regression tests OK :-) Enough for now. Paul