TI_FLAG_BYTE_FPDEPTH
#define get_thread_fpdepth() (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_FPDEPTH])
#define set_thread_fpdepth(val) (__cur_thread_flag_byte_ptr[TI_FLAG_BYTE_FPDEPTH] = (val))
#define TI_FPDEPTH (TI_FLAGS + TI_FLAG_BYTE_FPDEPTH)