The documentation of isl_schedule_tree mistakenly referred to
an aspect of a preliminary implementation that never made it
to the public version.
Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
@@ -14,11 +14,9 @@ ISL_DECLARE_LIST(schedule_tree)
/* A schedule (sub)tree.
*
* The leaves of a tree are not explicitly represented inside
- * the isl_schedule_tree. If a tree consists of only a leaf,
- * then it is equal to the static object isl_schedule_tree_empty.
+ * the isl_schedule_tree, except when the tree consists of only a leaf.
*
- * ctx may be NULL if type is isl_schedule_node_leaf.
- * In this case, ref has a negative value.
+ * If type is isl_schedule_node_leaf, then ref has a negative value.
*
* The "band" field is valid when type is isl_schedule_node_band.
* The "context" field is valid when type is isl_schedule_node_context