From 203888c35a68f7852686a01b1eb9aca067b8b715 Mon Sep 17 00:00:00 2001
From: Sven Verdoolaege <skimo@kotnet.org>
Date: Wed, 15 Feb 2012 00:15:55 +0100
Subject: [PATCH] isl_map_coalesce: drop empty parts before checking the number
 of parts

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
---
 isl_coalesce.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/isl_coalesce.c b/isl_coalesce.c
index 1a4078e4..52ec4acd 100644
--- a/isl_coalesce.c
+++ b/isl_coalesce.c
@@ -1228,6 +1228,7 @@ struct isl_map *isl_map_coalesce(struct isl_map *map)
 	unsigned n;
 	struct isl_tab **tabs = NULL;
 
+	map = isl_map_remove_empty_parts(map);
 	if (!map)
 		return NULL;
 
-- 
2.11.4.GIT