tree-ssa-loop-ivopts.c (get_address_cost): Prevent splitting addressing modes during calculation of costs.

	* tree-ssa-loop-ivopts.c (get_address_cost): Prevent splitting
	addressing modes during calculation of costs.

	* testsuite/gcc.dg/tree-ssa/loop-2.c: Fix outcome.
	* testsuite/gcc.dg/tree-ssa/loop-3.c: Change type of loop control
	variable.

From-SVN: r106842