47 	space->nested[0] = NULL;  in isl_space_alloc()
48 	space->nested[1] = NULL;  in isl_space_alloc()
74 	if (space->n_in != 0 || space->nested[0])  in isl_space_is_set()
198 	if (space->n_in != 0 || space->nested[0] ||  in isl_space_is_params()
199 	    space->n_out != 0 || space->nested[1])  in isl_space_is_params()
327 	if (!space->nested[pos])  in isl_space_peek_nested()
330 	return space->nested[pos];  in isl_space_peek_nested()
424 	if (space->nested[0] &&  in isl_space_dup()
425 	    !(dup->nested[0] = isl_space_copy(space->nested[0])))  in isl_space_dup()
427 	if (space->nested[1] &&  in isl_space_dup()
428 	    !(dup->nested[1] = isl_space_copy(space->nested[1])))  in isl_space_dup()
474 	isl_space_free(space->nested[0]);  in isl_space_free()
475 	isl_space_free(space->nested[1]);  in isl_space_free()
524 	isl_space *nested;  in isl_space_take_nested()  local
530 	nested = space->nested[pos];  in isl_space_take_nested()
531 	space->nested[pos] = NULL;  in isl_space_take_nested()
532 	return nested;  in isl_space_take_nested()
542 	__isl_take isl_space *space, int pos, __isl_take isl_space *nested)  in isl_space_restore_nested()  argument
544 	if (!space || !nested)  in isl_space_restore_nested()
547 	if (space->nested[pos] == nested) {  in isl_space_restore_nested()
548 		isl_space_free(nested);  in isl_space_restore_nested()
555 	isl_space_free(space->nested[pos]);  in isl_space_restore_nested()
556 	space->nested[pos] = nested;  in isl_space_restore_nested()
561 	isl_space_free(nested);  in isl_space_restore_nested()
731 			if (!space->nested[i])  in isl_space_set_dim_id()
733 			space->nested[i] =  in isl_space_set_dim_id()
734 				isl_space_set_dim_id(space->nested[i],  in isl_space_set_dim_id()
736 			if (!space->nested[i])  in isl_space_set_dim_id()
765 			if (!space->nested[i])  in isl_space_reset_dim_id()
767 			space->nested[i] =  in isl_space_reset_dim_id()
768 				isl_space_reset_dim_id(space->nested[i],  in isl_space_reset_dim_id()
770 			if (!space->nested[i])  in isl_space_reset_dim_id()
972 		isl_space *nested;  in isl_space_reset_user()  local
974 		if (!space->nested[i])  in isl_space_reset_user()
976 		nested = isl_space_take_nested(space, i);  in isl_space_reset_user()
977 		nested = isl_space_reset_user(nested);  in isl_space_reset_user()
978 		space = isl_space_restore_nested(space, i, nested);  in isl_space_reset_user()
998 static __isl_keep isl_space *nested(__isl_keep isl_space *space,  in nested()  function
1004 		return space->nested[0];  in nested()
1006 		return space->nested[1];  in nested()
1084 	nested1 = nested(space1, type1);  in isl_space_tuple_is_equal()
1085 	nested2 = nested(space2, type2);  in isl_space_tuple_is_equal()
1101 	isl_space *nested;  in isl_space_wrapped_tuple_is_equal()  local
1110 	nested = isl_space_peek_nested(space1, pos);  in isl_space_wrapped_tuple_is_equal()
1111 	return isl_space_tuple_is_equal(nested, inner, space2, type2);  in isl_space_wrapped_tuple_is_equal()
1255 		if (space && space->nested[0] &&  in isl_space_add_dims()
1256 		    !(space->nested[0] = isl_space_add_dims(space->nested[0],  in isl_space_add_dims()
1259 		if (space && space->nested[1] &&  in isl_space_add_dims()
1260 		    !(space->nested[1] = isl_space_add_dims(space->nested[1],  in isl_space_add_dims()
1389 		if (space && space->nested[0] &&  in isl_space_insert_dims()
1390 		    !(space->nested[0] = isl_space_insert_dims(space->nested[0],  in isl_space_insert_dims()
1393 		if (space && space->nested[1] &&  in isl_space_insert_dims()
1394 		    !(space->nested[1] = isl_space_insert_dims(space->nested[1],  in isl_space_insert_dims()
1486 		isl_space *nested;  in isl_space_move_dims()  local
1488 		if (!space->nested[i])  in isl_space_move_dims()
1490 		nested = isl_space_take_nested(space, i);  in isl_space_move_dims()
1491 		nested = isl_space_replace_params(nested, space);  in isl_space_move_dims()
1492 		space = isl_space_restore_nested(space, i, nested);  in isl_space_move_dims()
1547 	if (space && left->nested[0] &&  in isl_space_join()
1548 	    !(space->nested[0] = isl_space_copy(left->nested[0])))  in isl_space_join()
1550 	if (space && right->nested[1] &&  in isl_space_join()
1551 	    !(space->nested[1] = isl_space_copy(right->nested[1])))  in isl_space_join()
1661 	isl_space *nested;  in isl_space_domain_factor_domain()  local
1667 	nested = space->nested[0];  in isl_space_domain_factor_domain()
1670 					nested->n_in, nested->n_out);  in isl_space_domain_factor_domain()
1673 	if (nested->tuple_id[0]) {  in isl_space_domain_factor_domain()
1674 		domain->tuple_id[0] = isl_id_copy(nested->tuple_id[0]);  in isl_space_domain_factor_domain()
1678 	if (nested->nested[0]) {  in isl_space_domain_factor_domain()
1679 		domain->nested[0] = isl_space_copy(nested->nested[0]);  in isl_space_domain_factor_domain()
1680 		if (!domain->nested[0])  in isl_space_domain_factor_domain()
1697 	isl_space *nested;  in isl_space_domain_factor_range()  local
1703 	nested = space->nested[0];  in isl_space_domain_factor_range()
1705 	range = isl_space_drop_dims(range, isl_dim_in, 0, nested->n_in);  in isl_space_domain_factor_range()
1708 	if (nested->tuple_id[1]) {  in isl_space_domain_factor_range()
1709 		range->tuple_id[0] = isl_id_copy(nested->tuple_id[1]);  in isl_space_domain_factor_range()
1713 	if (nested->nested[1]) {  in isl_space_domain_factor_range()
1714 		range->nested[0] = isl_space_copy(nested->nested[1]);  in isl_space_domain_factor_range()
1715 		if (!range->nested[0])  in isl_space_domain_factor_range()
1734 	isl_space *nested;  in range_factor_domain()  local
1740 	nested = space->nested[1];  in range_factor_domain()
1743 					nested->n_in, nested->n_out);  in range_factor_domain()
1746 	if (nested->tuple_id[0]) {  in range_factor_domain()
1747 		domain->tuple_id[1] = isl_id_copy(nested->tuple_id[0]);  in range_factor_domain()
1751 	if (nested->nested[0]) {  in range_factor_domain()
1752 		domain->nested[1] = isl_space_copy(nested->nested[0]);  in range_factor_domain()
1753 		if (!domain->nested[1])  in range_factor_domain()
1810 	isl_space *nested;  in range_factor_range()  local
1816 	nested = space->nested[1];  in range_factor_range()
1818 	range = isl_space_drop_dims(range, isl_dim_out, 0, nested->n_in);  in range_factor_range()
1821 	if (nested->tuple_id[1]) {  in range_factor_range()
1822 		range->tuple_id[1] = isl_id_copy(nested->tuple_id[1]);  in range_factor_range()
1826 	if (nested->nested[1]) {  in range_factor_range()
1827 		range->nested[1] = isl_space_copy(nested->nested[1]);  in range_factor_range()
1828 		if (!range->nested[1])  in range_factor_range()
1942 	isl_space_free(space->nested[0]);  in isl_space_map_from_set()
1943 	space->nested[0] = isl_space_copy(space->nested[1]);  in isl_space_map_from_set()
1984 	isl_space *nested;  in isl_space_reverse()  local
2002 	nested = space->nested[0];  in isl_space_reverse()
2003 	space->nested[0] = space->nested[1];  in isl_space_reverse()
2004 	space->nested[1] = nested;  in isl_space_reverse()
2048 	isl_space *nested;  in isl_space_reverse_wrapped()  local
2052 	nested = isl_space_peek_nested(space, pos);  in isl_space_reverse_wrapped()
2053 	equal = isl_space_tuple_is_equal(nested, isl_dim_in,  in isl_space_reverse_wrapped()
2054 					nested, isl_dim_out);  in isl_space_reverse_wrapped()
2058 	nested = isl_space_take_nested(space, pos);  in isl_space_reverse_wrapped()
2059 	nested = isl_space_reverse(nested);  in isl_space_reverse_wrapped()
2060 	space = isl_space_restore_nested(space, pos, nested);  in isl_space_reverse_wrapped()
2063 	nested = isl_space_peek_nested(space, pos);  in isl_space_reverse_wrapped()
2064 	n_in = isl_space_dim(nested, isl_dim_in);  in isl_space_reverse_wrapped()
2067 	space = copy_ids(space, type, 0, nested, isl_dim_in);  in isl_space_reverse_wrapped()
2068 	space = copy_ids(space, type, n_in, nested, isl_dim_out);  in isl_space_reverse_wrapped()
2172 		if (space && space->nested[0] &&  in isl_space_drop_dims()
2173 		    !(space->nested[0] = isl_space_drop_dims(space->nested[0],  in isl_space_drop_dims()
2176 		if (space && space->nested[1] &&  in isl_space_drop_dims()
2177 		    !(space->nested[1] = isl_space_drop_dims(space->nested[1],  in isl_space_drop_dims()
2769 	hash = isl_hash_tuples(hash, space->nested[0]);  in isl_hash_tuples()
2770 	hash = isl_hash_tuples(hash, space->nested[1]);  in isl_hash_tuples()
2794 	hash = isl_hash_tuples(hash, space->nested[0]);  in isl_hash_tuples_domain()
2860 	return isl_bool_ok(space->nested[1] != NULL);  in isl_space_is_wrapping()
2873 	return isl_bool_ok(space->nested[0] != NULL);  in isl_space_domain_is_wrapping()
2886 	return isl_bool_ok(space->nested[1] != NULL);  in isl_space_range_is_wrapping()
2926 	wrap->nested[1] = space;  in isl_space_wrap()
2945 	unwrap = isl_space_copy(space->nested[1]);  in isl_space_unwrap()
2963 	if (space->nested[type - isl_dim_in])  in isl_space_is_named_or_nested()
2970 	isl_bool nested;  in isl_space_may_be_set()  local
2982 	nested = isl_space_is_named_or_nested(space, isl_dim_in);  in isl_space_may_be_set()
2983 	if (nested < 0 || nested)  in isl_space_may_be_set()
2984 		return isl_bool_not(nested);  in isl_space_may_be_set()
3000 	isl_space_free(space->nested[type - isl_dim_in]);  in isl_space_reset()
3001 	space->nested[type - isl_dim_in] = NULL;  in isl_space_reset()
3010 	if (!space->nested[0] && !space->nested[1])  in isl_space_flatten()
3013 	if (space->nested[0])  in isl_space_flatten()
3015 	if (space && space->nested[1])  in isl_space_flatten()
3025 	if (!space->nested[0])  in isl_space_flatten_domain()
3035 	if (!space->nested[1])  in isl_space_flatten_range()
3070 			isl_space *nested;  in isl_space_replace_params()  local
3072 			if (!dst->nested[i])  in isl_space_replace_params()
3074 			nested = isl_space_take_nested(dst, i);  in isl_space_replace_params()
3075 			nested = isl_space_replace_params(nested, src);  in isl_space_replace_params()
3076 			dst = isl_space_restore_nested(dst, i, nested);  in isl_space_replace_params()
3243 	return isl_space_can_curry(space->nested[1]);  in isl_space_can_range_curry()
3251 	isl_space *nested;  in isl_space_range_curry()  local
3261 	nested = isl_space_take_nested(space, 1);  in isl_space_range_curry()
3262 	nested = isl_space_curry(nested);  in isl_space_range_curry()
3263 	space = isl_space_restore_nested(space, 1, nested);  in isl_space_range_curry()
3383 	if (model->nested[1]) {  in isl_space_extend_domain_with_range()
3384 		isl_space *nested = isl_space_copy(model->nested[1]);  in isl_space_extend_domain_with_range()  local
3386 		nested = isl_space_align_params(nested, isl_space_copy(space));  in isl_space_extend_domain_with_range()
3387 		n_nested = isl_space_dim(nested, isl_dim_param);  in isl_space_extend_domain_with_range()
3392 			nested = isl_space_drop_dims(nested, isl_dim_param,  in isl_space_extend_domain_with_range()
3394 		if (!nested)  in isl_space_extend_domain_with_range()
3396 		space->nested[1] = nested;  in isl_space_extend_domain_with_range()
3428 	nested1 = nested(space1, type);  in isl_space_cmp_type()
3429 	nested2 = nested(space2, type);  in isl_space_cmp_type()