Use rtx_insn_list in various places

gcc/
2014-08-27  David Malcolm  <dmalcolm@redhat.com>

	* rtl.h (free_INSN_LIST_list): Strengthen param from rtx * to
	rtx_insn_list **.
	(alloc_INSN_LIST): Strengthen return type from rtx to
	rtx_insn_list *.
	(copy_INSN_LIST): Likewise for return type and param.
	(concat_INSN_LIST): Likewise for both params and return type.
	(remove_free_INSN_LIST_elem): Strenghten first param from rtx to
	rtx_insn *.  Strengthen second param from rtx * to rtx_insn_list **.
	(remove_free_INSN_LIST_node): Strenghten return type from rtx to
	rtx_insn *.  Strengthen param from rtx * to rtx_insn_list **.

	* sched-int.h (struct deps_reg): Strengthen fields "uses", "sets",
	"implicit_sets", "control_uses", "clobbers" from rtx to
	rtx_insn_list *.
	(struct deps_desc): Likewise for fields "pending_read_insns",
	"pending_write_insns", "pending_jump_insns",
	"last_pending_memory_flush", "last_function_call",
	"last_function_call_may_noreturn", "sched_before_next_call",
	"sched_before_next_jump".
	(struct _haifa_deps_insn_data): Likewise for field "cond_deps".
	(remove_from_deps): Strengthen second param from rtx to rtx_insn *.

	* gcse.c (struct ls_expr): Strengthen fields "loads" and "stores"
	from rtx to rtx_insn_list *.
	(ldst_entry): Replace use of NULL_RTX with NULL when dealing with
	rtx_insn_list *.

	* haifa-sched.c (insn_queue): Strengthen this variable from rtx *
	to rtx_insn_list **.
	(dep_cost_1): Strengthen local "dep_cost_rtx_link" from rtx to
	rtx_insn_list *.
	(queue_insn): Likewise for local "link".
	(struct haifa_saved_data): Strengthen field "insn_queue" from
	rtx * to rtx_insn_list **.
	(save_backtrack_point): Update allocation of save->insn_queue to
	reflect the strengthening of elements from rtx to rtx_insn_list *.
	(queue_to_ready): Strengthen local "link" from rtx to
	rtx_insn_list *; use methods "next" and "insn" when traversing the
	list.
	(early_queue_to_ready): Likewise for locals "link", "next_link",
	"prev_link".
	(schedule_block): Update allocation of insn_queue to reflect the
	strengthening of elements from rtx to rtx_insn_list *.  Strengthen
	local "link" from rtx to rtx_insn_list *, and use methods when
	working it.
	(add_to_speculative_block): Strengthen locals "twins" and
	"next_node" from rtx to rtx_insn_list *, and use methods when
	working with them.  Strengthen local "twin" from rtx to
	rtx_insn *, eliminating a checked cast.
	(fix_recovery_deps): Strengthen locals "ready_list" and "link"
	from rtx to rtx_insn_list *, and use methods when working with
	them.

	* lists.c (alloc_INSN_LIST): Strengthen return type and local "r"
	from rtx to rtx_insn_list *, adding a checked cast.
	(free_INSN_LIST_list): Strengthen param "listp" from rtx * to
	rtx_insn_list **.
	(copy_INSN_LIST): Strengthen return type and locals "new_queue",
	"newlink" from rtx to rtx_insn_list *.  Strengthen local
	"pqueue" from rtx * to rtx_insn_list **.  Strengthen local "x"
	from rtx to rtx_insn *.
	(concat_INSN_LIST): Strengthen return type and local "new_rtx",
	from rtx to rtx_insn_list *.  Use methods of the latter class.
	(remove_free_INSN_LIST_elem): Strengthen param "elem" from rtx to
	rtx_insn *, and param "listp" from rtx * to rtx_insn_list **.
	(remove_free_INSN_LIST_node): Strengthen return type and local
	"elem" from rtx to rtx_insn *.  Strenghten param "listp" from
	rtx * to rtx_insn_list **.  Strengthen local "node" from rtx to
	rtx_insn_list *, using "insn" method.

	* sched-deps.c (add_dependence_list):  Strengthen param "list"
	from rtx to rtx_insn_list *, and use methods when working with it.
	(add_dependence_list_and_free):  Strengthen param "listp" from
	rtx * to rtx_insn_list **.
	(remove_from_dependence_list): Strenghten param "listp" from rtx *
	to rtx_insn_list **, and use methods when working with *listp.
	(remove_from_both_dependence_lists): Strengthen param "listp" from
	rtx * to rtx_insn_list **
	(add_insn_mem_dependence): Strengthen local "insn_list" from rtx *
	to rtx_insn_list **.  Eliminate local "link", in favor of two new
	locals "insn_node" and "mem_node", an rtx_insn_list * and an rtx
	respectively.
	(deps_analyze_insn): Split out uses 'f local "t" as an INSN_LIST
	by introducing local "cond_deps".
	(remove_from_deps): Strengthen param "insn" from rtx to
	rtx_insn *.

	* sched-rgn.c (concat_insn_mem_list): Strengthen param
	"copy_insns" and local "new_insns" from rtx to rtx_insn_list *.
	Strengthen param "old_insns_p" from rtx * to rtx_insn_list **.
	Use methods of rtx_insn_list.

	* store-motion.c (struct st_expr): Strengthen fields
	"antic_stores" and "avail_stores" from rtx to rtx_insn_list *.
	(st_expr_entry): Replace NULL_RTX with NULL when dealing with
	rtx_insn_list *.
	(find_moveable_store): Split out "tmp" into multiple more-tightly
	scoped locals.  Use methods of rtx_insn_list *.
	(compute_store_table): Strengthen local "tmp" from rtx to
	rtx_insn *.  Use methods of rtx_insn_list *.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@214590 138bc75d-0d04-0410-961f-82ee72b054a4

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