config/ia64/ia64.c: Use rtx_insn

config/ia64/ia64.c: Use rtx_insn

gcc/
	* config/ia64/ia64.c (ia64_expand_tls_address): Strengthen local
	"insns" from rtx to rtx_insn *.
	(ia64_emit_cond_move): Likewise for locals "insn", "first".
	(struct spill_fill_data): Likewise for field "init_after" and for
	elements of array field "prev_insn".
	(spill_restore_mem): Likewise for locals "insn", "first".
	(do_spill): Likewise for local "insn".
	(do_restore): Likewise.
	(ia64_expand_prologue): Likewise.
	(ia64_expand_epilogue): Likewise.
	(emit_insn_group_barriers): Likewise for locals "insn",
	"last_label".
	(emit_all_insn_group_barriers): Likewise for locals "insn",
	"last".
	(dfa_stop_insn): Likewise for this global.
	(dfa_pre_cycle_insn): Likewise.
	(ia64_nop): Likewise.
	(final_emit_insn_group_barriers): Likewise for locals "insn",
	"last".
	(emit_predicate_relation_info): Likewise for locals "head", "n",
	"insn", "b", "a".
	(ia64_reorg): Likewise for local "insn".
	(ia64_output_mi_thunk): Likewise.
	(expand_vec_perm_interleave_2): Likewise for local "seq".

From-SVN: r214445