always define AUTO_INC_DEC

always define AUTO_INC_DEC

gcc/ChangeLog:

2015-07-08  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* rtl.h: Always define AUTO_INC_DEC.
	* auto-inc-dec.c (pass_inc_dec::execute): Adjust.
	* combine.c (combine_instructions): Likewise.
	(can_combine_p): Likewise.
	(try_combine): Likewise.
	* emit-rtl.c (try_split): Likewise.
	* loop-invariant.c (calculate_loop_reg_pressure): Likewise.
	* lower-subreg.c (resolve_simple_move): Likewise.
	* lra.c (update_inc_notes): Likewise.
	* recog.c (asm_operand_ok): Likewise.
	(constrain_operands): Likewise.
	* regrename.c (scan_rtx_address): Likewise.
	* reload.c (update_auto_inc_notes): Likewise.
	(find_equiv_reg): Likewise.
	* reload1.c (reload): Likewise.
	(reload_as_needed): Likewise.
	(choose_reload_regs): Likewise.
	(emit_input_reload_insns): Likewise.
	(delete_output_reload): Likewise.
	* sched-deps.c (init_insn_reg_pressure_info): Likewise.
	* valtrack.c (cleanup_auto_inc_dec): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@225595 138bc75d-0d04-0410-961f-82ee72b054a4