gcc/ChangeLog:

2015-05-23  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* combine.c (find_split_point): Check the value of HAVE_lo_sum
	instead of if it is defined.
	(combine_simplify_rtx): Likewise.
	* lra-constraints.c (process_address_1): Likewise.
	* config/darwin.c: Adjust.
	* genconfig.c (main): Always define HAVE_lo_sum.

From-SVN: r223619