* tree-ssa-loop-ivopts.c (alloc_iv): Lower address expressions.
	* tree-affine.c (get_inner_reference_aff): Return base.
	* tree-affine.h (get_inner_reference_aff): Change prototype.

	* gcc.dg/tree-ssa/loop-2.c: Refine check condition.
	* gcc.dg/tree-ssa/ivopt_infer_2.c: Ditto.
	* gcc.dg/tree-ssa/ivopt_mult_3.c: Ditto.

From-SVN: r204497