* tree-vect-loop.c (vect_create_epilog_for_reduction): Switch

	* tree-vect-loop.c (vect_create_epilog_for_reduction): Switch
	to outer loop when creating reduction epilogue for double reduction,
	and switch back to the inner loop when updating the phi nodes.
	Update uses of outer loop exit phi nodes in double reduction (instead
	of uses of reduction).

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@162668 138bc75d-0d04-0410-961f-82ee72b054a4