Remove TARGET_foo (ix86_tune == PROCESSOR_foo) macros.

Remove TARGET_foo (ix86_tune == PROCESSOR_foo) macros.

gcc/ChangeLog:

	* config/i386/i386-expand.c (decide_alignment): Use newly named
	macro TARGET_CPU_P.
	* config/i386/i386.c (ix86_decompose_address): Likewise.
	(ix86_address_cost): Likewise.
	(ix86_lea_outperforms): Likewise.
	(ix86_avoid_lea_for_addr): Likewise.
	(ix86_add_stmt_cost): Likewise.
	* config/i386/i386.h (TARGET_*): Remove.
	(TARGET_CPU_P): New macro.
	* config/i386/i386.md: Use newly named macro TARGET_CPU_P.
	* config/i386/x86-tune-sched-atom.c (do_reorder_for_imul): Likewise.
	(swap_top_of_ready_list): Likewise.
	(ix86_atom_sched_reorder): Likewise.
	* config/i386/x86-tune-sched-bd.c (ix86_bd_has_dispatch): Likewise.
	* config/i386/x86-tune-sched.c (ix86_adjust_cost): Likewise.