multi = FN(MULTI(BASE),cow)(multi);
if (!multi || !exp)
- return NULL;
+ goto error;
for (i = 0; i < multi->n; ++i) {
multi->p[i] = FN(EL,realign_domain)(multi->p[i],
FN(MULTI(BASE),free)(multi2);
return NULL;
}
+
+/* Given two multi expressions, "multi1"
+ *
+ * [A1 A2] -> [B1 B2]
+ *
+ * where A2 starts at position "in_pos" and B2 starts at position "out_pos",
+ * and "multi2"
+ *
+ * [C] -> [D]
+ *
+ * return the multi expression
+ *
+ * [A1 C A2] -> [B1 D B2]
+ *
+ * We first insert input dimensions to obtain
+ *
+ * [A1 C A2] -> [B1 B2]
+ *
+ * and
+ *
+ * [A1 C A2] -> [D]
+ *
+ * and then apply range_splice.
+ */
+__isl_give MULTI(BASE) *FN(MULTI(BASE),splice)(
+ __isl_take MULTI(BASE) *multi1, unsigned in_pos, unsigned out_pos,
+ __isl_take MULTI(BASE) *multi2)
+{
+ unsigned n_in1;
+ unsigned n_in2;
+
+ if (!multi1 || !multi2)
+ goto error;
+
+ n_in1 = FN(MULTI(BASE),dim)(multi1, isl_dim_in);
+ if (in_pos > n_in1)
+ isl_die(FN(MULTI(BASE),get_ctx)(multi1), isl_error_invalid,
+ "index out of bounds", goto error);
+
+ n_in2 = FN(MULTI(BASE),dim)(multi2, isl_dim_in);
+
+ multi1 = FN(MULTI(BASE),insert_dims)(multi1, isl_dim_in, in_pos, n_in2);
+ multi2 = FN(MULTI(BASE),insert_dims)(multi2, isl_dim_in, n_in2,
+ n_in1 - in_pos);
+ multi2 = FN(MULTI(BASE),insert_dims)(multi2, isl_dim_in, 0, in_pos);
+
+ return FN(MULTI(BASE),range_splice)(multi1, out_pos, multi2);
+error:
+ FN(MULTI(BASE),free)(multi1);
+ FN(MULTI(BASE),free)(multi2);
+ return NULL;
+}
+
+/* This function is currently only used from isl_aff.c
+ */
+static __isl_give MULTI(BASE) *FN(MULTI(BASE),bin_op)(
+ __isl_take MULTI(BASE) *multi1, __isl_take MULTI(BASE) *multi2,
+ __isl_give EL *(*fn)(__isl_take EL *, __isl_take EL *))
+ __attribute__ ((unused));
+
+/* Pairwise perform "fn" to the elements of "multi1" and "multi2" and
+ * return the result.
+ */
+static __isl_give MULTI(BASE) *FN(MULTI(BASE),bin_op)(
+ __isl_take MULTI(BASE) *multi1, __isl_take MULTI(BASE) *multi2,
+ __isl_give EL *(*fn)(__isl_take EL *, __isl_take EL *))
+{
+ int i;
+ isl_ctx *ctx;
+
+ multi1 = FN(MULTI(BASE),cow)(multi1);
+ if (!multi1 || !multi2)
+ goto error;
+
+ ctx = FN(MULTI(BASE),get_ctx)(multi1);
+ if (!isl_space_is_equal(multi1->space, multi2->space))
+ isl_die(ctx, isl_error_invalid,
+ "spaces don't match", goto error);
+
+ for (i = 0; i < multi1->n; ++i) {
+ multi1->p[i] = fn(multi1->p[i], FN(EL,copy)(multi2->p[i]));
+ if (!multi1->p[i])
+ goto error;
+ }
+
+ FN(MULTI(BASE),free)(multi2);
+ return multi1;
+error:
+ FN(MULTI(BASE),free)(multi1);
+ FN(MULTI(BASE),free)(multi2);
+ return NULL;
+}