isl_ast_build_get_stride: use isl_val

[platform/upstream/isl.git] / isl_scan.c

diff --git a/isl_scan.c b/isl_scan.c
index f32f5e6..a7d2b9f 100644 (file)
--- a/isl_scan.c
+++ b/isl_scan.c
@@ -1,17 +1,19 @@
 /*
  * Copyright 2008-2009 Katholieke Universiteit Leuven
  *
- * Use of this software is governed by the GNU LGPLv2.1 license
+ * Use of this software is governed by the MIT license
  *
  * Written by Sven Verdoolaege, K.U.Leuven, Departement
  * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
  */
 
+#include <isl_ctx_private.h>
 #include <isl_map_private.h>
 #include "isl_basis_reduction.h"
 #include "isl_scan.h"
 #include <isl/seq.h>
 #include "isl_tab.h"
+#include <isl_val_private.h>
 
 struct isl_counter {
        struct isl_scan_callback callback;
@@ -123,7 +125,7 @@ int isl_basic_set_scan(struct isl_basic_set *bset,
        if (!min || !max || !snap)
                goto error;
 
-       tab = isl_tab_from_basic_set(bset);
+       tab = isl_tab_from_basic_set(bset, 0);
        if (!tab)
                goto error;
        if (isl_tab_extend_cons(tab, dim + 1) < 0)
@@ -301,3 +303,21 @@ int isl_set_count(__isl_keep isl_set *set, isl_int *count)
                return -1;
        return isl_set_count_upto(set, set->ctx->zero, count);
 }
+
+/* Count the total number of elements in "set" (in an inefficient way) and
+ * return the result.
+ */
+__isl_give isl_val *isl_set_count_val(__isl_keep isl_set *set)
+{
+       isl_val *v;
+
+       if (!set)
+               return NULL;
+       v = isl_val_zero(isl_set_get_ctx(set));
+       v = isl_val_cow(v);
+       if (!v)
+               return NULL;
+       if (isl_set_count(set, &v->n) < 0)
+               v = isl_val_free(v);
+       return v;
+}