TS_RESTORE_FP
current_thread_info()->status |= TS_RESTORE_FP;
childti->status |= TS_SAVED_FP | TS_RESTORE_FP;
current_thread_info()->status |= TS_SAVED_FP | TS_RESTORE_FP;
current_thread_info()->status |= TS_RESTORE_FP;
current_thread_info()->status |= TS_RESTORE_FP;