* regmove.c (copy_src_to_dest): Remove loop_depth parameter.
	(optimize_reg_copy_1): Remove REG_N_REFS updating code.
	(optimize_reg_copy_2, copy_src_to_dest, fixup_match_2): Likewise.
	(regmove_optimize, fixup_match_1): Likewise.

From-SVN: r30986