rtl.h (reg_info): Add an nregs field.

rtl.h (reg_info): Add an nregs field.

gcc/
	* rtl.h (reg_info): Add an nregs field.
	(REG_NREGS): Use it.
	(SET_REGNO_RAW): Delete.
	(set_regno_raw): New function.
	* regs.h (END_HARD_REGNO): Make equivalent to END_REGNO.
	(END_REGNO): Redefine in terms of REG_NREGS.
	* read-rtl.c (read_rtx_code): Call set_regno_raw instead of
	SET_REGNO_RAW.
	* emit-rtl.c (set_mode_and_regno): Likewise.
	* df-scan.c (df_ref_change_reg_with_loc): Use set_mode_and_regno
	instead of SET_REGNO_RAW.

From-SVN: r223342