gcc/fortran/ChangeLog:

2016-09-01  Andre Vehreschild  <vehre@gcc.gnu.org>

	PR fortran/72832
	* trans-expr.c (gfc_copy_class_to_class): Add generation of
	runtime array bounds check.
	* trans-intrinsic.c (gfc_conv_intrinsic_size): Add a crutch to
	get the descriptor of a function returning a class object.
	* trans-stmt.c (gfc_trans_allocate): Use the array spec on the
	array to allocate instead of the array spec from source=.

gcc/testsuite/ChangeLog:

2016-09-01  Andre Vehreschild  <vehre@gcc.gnu.org>

	PR fortran/72832
	* gfortran.dg/allocate_with_source_22.f03: New test.
	* gfortran.dg/allocate_with_source_23.f03: New test.  Expected to
	fail.