isl_union_*_alloc: project space onto parameters

Before, we were expecting the user to provide a parameter space,
but we might as well project whatever the user gives us onto
its parameter space.

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

diff --git a/isl_union_templ.c b/isl_union_templ.c
index 46723ab..9b54e1c 100644 (file)
--- a/isl_union_templ.c
+++ b/isl_union_templ.c
@@ -46,6 +46,7 @@ static __isl_give UNION *FN(UNION,alloc)(__isl_take isl_space *dim, int size)
 {
        UNION *u;
 
+       dim = isl_space_params(dim);
        if (!dim)
                return NULL;