2012-08-16  Yuri Rumyantsev  <ysrumyan@gmail.com>

	* config/i386/i386-protos.h (ix86_split_lea_for_addr) : Add
	additional argument.
	* config/i386/i386.md (ix86_split_lea_for_addr) : Add
	additional argument curr_insn.
	* config/i386/i386.c (ix86_split_lea_for_addr): Load base or index
	register first, depending on their defintion distances.
	(ix86_lea_outperforms): Prefer LEA only if split cost exceeds
	AGU stall.
	(find_nearest_reg-def): New function. Find register with
	nearest definition.

From-SVN: r190452