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isl_tab.c: push_union: handle NULL input
[platform/upstream/isl.git]
/
isl_map_simplify.c
diff --git
a/isl_map_simplify.c
b/isl_map_simplify.c
index
c3bbbc4
..
c83888a
100644
(file)
--- a/
isl_map_simplify.c
+++ b/
isl_map_simplify.c
@@
-1449,6
+1449,8
@@
struct isl_basic_map *isl_basic_map_eliminate_vars(
bmap = isl_basic_map_cow(bmap);
for (d = pos + n - 1; d >= 0 && d >= pos; --d)
bmap = remove_dependent_vars(bmap, d);
+ if (!bmap)
+ return NULL;
for (d = pos + n - 1;
d >= 0 && d >= total - bmap->n_div && d >= pos; --d)