From 9e726edec7035480c65e1bda1b2639a961cb89e4 Mon Sep 17 00:00:00 2001
From: Sven Verdoolaege <skimo@kotnet.org>
Date: Wed, 12 May 2010 11:30:46 +0200
Subject: [PATCH] isl_qpolynomial_opt_on_domain: handle empty input

---
 isl_polynomial.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/isl_polynomial.c b/isl_polynomial.c
index 28b9f7e0..72692240 100644
--- a/isl_polynomial.c
+++ b/isl_polynomial.c
@@ -2987,6 +2987,9 @@ __isl_give isl_qpolynomial *isl_qpolynomial_opt_on_domain(
 	if (isl_set_foreach_point(set, opt_fn, &data) < 0)
 		goto error;
 
+	if (data.first)
+		data.opt = isl_qpolynomial_zero(isl_qpolynomial_get_dim(qp));
+
 	isl_set_free(set);
 	isl_qpolynomial_free(qp);
 	return data.opt;
-- 
2.11.4.GIT