var-tracking.c: Use rtx_insn

var-tracking.c: Use rtx_insn

gcc/
2014-08-23  David Malcolm  <dmalcolm@redhat.com>

	* var-tracking.c (struct micro_operation_def): Strengthen field
	"insn" from rtx to rtx_insn *.
	(struct emit_note_data_def): Likewise.
	(insn_stack_adjust_offset_pre_post): Likewise for param "insn".
	(vt_stack_adjustments): Likewise for local "insn".
	(adjust_insn): Likewise for param "insn".
	(val_store): Likewise.
	(val_resolve): Likewise.
	(struct count_use_info): Likewise for field "insn".
	(log_op_type): Likewise for param "insn".
	(reverse_op): Likewise.
	(prepare_call_arguments): Likewise.
	(add_with_sets):  The initial param takes an insn, but we can't
	yet strengthen it from rtx to rtx_insn * since it's used as a
	cselib_record_sets_hook callback.  For now rename initial param
	from "insn" to "uncast_insn", and introduce a local "insn" of
	the stronger rtx_insn * type, with a checked cast.
	(compute_bb_dataflow): Strengthen local "insn" from rtx to
	rtx_insn *.
	(emit_note_insn_var_location): Likewise.
	(emit_notes_for_changes): Likewise.
	(emit_notes_for_differences): Likewise.
	(next_non_note_insn_var_location): Likewise for return type and
	for param "insn".
	(emit_notes_in_bb): Likewise for locals "insn" and "next_insn".
	(vt_initialize): Likewise for local "insn".
	(delete_debug_insns): Likewise for locals "insn" and "next".

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@214392 138bc75d-0d04-0410-961f-82ee72b054a4