struct isl_sched_node *node = edge->src;
coef = intra_coefficients(graph, map);
+ if (!coef)
+ return -1;
dim = isl_space_domain(isl_space_unwrap(isl_basic_set_get_space(coef)));
struct isl_sched_node *dst = edge->dst;
coef = inter_coefficients(graph, map);
+ if (!coef)
+ return -1;
dim = isl_space_domain(isl_space_unwrap(isl_basic_set_get_space(coef)));