isl_flow.c: before: use isl_vec_cmp_element

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>

diff --git a/isl_flow.c b/isl_flow.c
index f44c531..68fa0d9 100644 (file)
--- a/isl_flow.c
+++ b/isl_flow.c
@@ -1258,7 +1258,6 @@ static int before(void *first, void *second)
        struct isl_sched_info *info2 = second;
        int n1, n2;
        int i;
-       isl_int v1, v2;
 
        n1 = isl_vec_size(info1->cst);
        n2 = isl_vec_size(info2->cst);
@@ -1266,28 +1265,22 @@ static int before(void *first, void *second)
        if (n2 < n1)
                n1 = n2;
 
-       isl_int_init(v1);
-       isl_int_init(v2);
        for (i = 0; i < n1; ++i) {
                int r;
+               int cmp;
 
                if (!info1->is_cst[i])
                        continue;
                if (!info2->is_cst[i])
                        continue;
-               isl_vec_get_element(info1->cst, i, &v1);
-               isl_vec_get_element(info2->cst, i, &v2);
-               if (isl_int_eq(v1, v2))
+               cmp = isl_vec_cmp_element(info1->cst, info2->cst, i);
+               if (cmp == 0)
                        continue;
 
-               r = 2 * i + isl_int_lt(v1, v2);
+               r = 2 * i + (cmp < 0);
 
-               isl_int_clear(v1);
-               isl_int_clear(v2);
                return r;
        }
-       isl_int_clear(v1);
-       isl_int_clear(v2);
 
        return 2 * n1;
 }