isl_basic_map_normalize: avoid invalid access on error
[isl.git] / isl_band_private.h
blob8f201f6be14cd12d5c3b614d4a95ef4eb27b8c51
1 #ifndef ISL_BAND_PRIVATE_H
2 #define ISL_BAND_PRIVATE_H
4 #include <isl/aff.h>
5 #include <isl/band.h>
6 #include <isl/list.h>
7 #include <isl/schedule.h>
9 /* Information about a band within a schedule.
11 * n is the number of scheduling dimensions within the band.
12 * zero is an array of length n, indicating whether a scheduling dimension
13 * results in zero dependence distances for the proximity dependences.
14 * pma is the partial schedule corresponding to this band.
15 * schedule is the schedule that contains this band.
16 * parent is the parent of this band (or NULL if the band is a root).
17 * children are the children of this band (or NULL if the band is a leaf).
19 * To avoid circular dependences in the reference counting,
20 * the schedule and parent pointers are not reference counted.
21 * isl_band_copy increments the reference count of schedule to ensure
22 * that outside references to the band keep the schedule alive.
24 struct isl_band {
25 int ref;
27 int n;
28 int *zero;
30 isl_union_pw_multi_aff *pma;
31 isl_schedule *schedule;
32 isl_band *parent;
33 isl_band_list *children;
36 __isl_give isl_band *isl_band_alloc(isl_ctx *ctx);
38 __isl_give isl_union_map *isl_band_list_get_suffix_schedule(
39 __isl_keep isl_band_list *list);
41 #endif