isl_input.c: read_map_tuple: return early on error

This avoids spurious error messages.

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

diff --git a/isl_input.c b/isl_input.c
index f2e57e7..0f5a1bf 100644 (file)
--- a/isl_input.c
+++ b/isl_input.c
@@ -1043,6 +1043,8 @@ static __isl_give isl_map *read_map_tuple(struct isl_stream *s,
 
        n = isl_multi_pw_aff_dim(tuple, isl_dim_out);
        space = isl_space_range(isl_multi_pw_aff_get_space(tuple));
+       if (!space)
+               goto error;
 
        if (type == isl_dim_param) {
                if (isl_space_has_tuple_name(space, isl_dim_set) ||