* dwarf2out.c (new_reg_loc_descr): Don't ever create DW_OP_regX.
	(one_reg_loc_descriptor): Create DW_OP_regX here instead of calling
	new_reg_loc_descr.
	(loc_by_reference): If loc is DW_OP_regX, change it into DW_OP_bregX 0
	instead of appending DW_OP_deref*.

From-SVN: r147187