config/arm: Use rtx_insn and rtx_code_label

config/arm: Use rtx_insn and rtx_code_label

gcc/
	* config/arm/arm-protos.h (arm_final_prescan_insn): Strengthen
	param from rtx to rtx_insn *.
	(thumb1_final_prescan_insn): Likewise.
	(thumb2_final_prescan_insn): Likewise.

	* config/arm/arm.c (emit_set_insn): Strengthen return type from
	rtx to rtx_insn *.
	(struct minipool_node): Likewise for field "insn".
	(dump_minipool): Likewise for param "scan".
	(create_fix_barrier): Likewise for local "from".  Strengthen local
	"label" from rtx to rtx_code_label *.
	(push_minipool_barrier): Strengthen param "insn" from rtx to
	rtx_insn *.
	(push_minipool_fix): Likewise.
	(note_invalid_constants): Likewise.
	(thumb2_reorg): Likewise for local "insn".
	(arm_reorg): Likewise.
	(thumb2_final_prescan_insn): Likewise for param
	"insn" and local "first_insn".
	(arm_final_prescan_insn): Likewise for param "insn" and locals
	"start_insn", "this_insn".
	(arm_debugger_arg_offset): Likewise for param "insn".
	(thumb1_emit_multi_reg_push): Likewise for return type and local
	"insn".
	(thumb1_final_prescan_insn): Likewise for param "insn".
	(thumb_far_jump_used_p): Likewise for local "insn".
	(thumb1_expand_prologue): Likewise.
	(arm_expand_epilogue_apcs_frame): Likewise.
	(arm_expand_epilogue): Likewise for locals "insn", "tmp".
	(arm_split_compare_and_swap): Strengthen locals "label1", "label2"
	from rtx to rtx_code_label *.
	(arm_split_atomic_op): Likewise for local "label".
	(arm_emit_coreregs_64bit_shift): Likewise for local "done_label".

From-SVN: r214437