2013-05-07  Vladimir Makarov  <vmakarov@redhat.com>

	* ira.c (update_equiv_regs): Add insn having equiv memory even if
	it is not lhs of the insn.
	(setup_reg_equiv): Remove insn having equiv memory which it is not
	lhs of the insn.
	* lra-constraints.c (process_address): Try to improve generation
	code for address base + disp.
	(lra_constraints): Make correct the code for checking insn setting
	up backward equivalence.  Remove insn only if it is in the init
	insn list.
	* lra-eliminations.c (update_reg_eliminate): Change return value.
	(lra_eliminate): Use the result.

From-SVN: r198695