public void print_reg(int n){
		print_it(n);
		IcFun.print_out(" | regs-alloc:");
		for(IcVar i : def_var)
			IcFun.print_out("<"+i+":$"+this.fun.all_vars_reg.get(i)+">");
		for(IcVar i : use_var)
			IcFun.print_out("<"+i+":$"+this.fun.all_vars_reg.get(i)+">");
		IcFun.print_out("\n");
	}