From 2fae089001155cb605589a21068965069048a5ec Mon Sep 17 00:00:00 2001
From: Sven Verdoolaege <skimo@kotnet.org>
Date: Tue, 21 Apr 2015 13:35:57 +0200
Subject: [PATCH] isl_basic_map_plain_cmp: handle NULL arguments

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
---
 isl_map.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/isl_map.c b/isl_map.c
index 0cf30483..458bb1ee 100644
--- a/isl_map.c
+++ b/isl_map.c
@@ -9031,6 +9031,9 @@ int isl_basic_map_plain_cmp(const __isl_keep isl_basic_map *bmap1,
 	int i, cmp;
 	unsigned total;
 
+	if (!bmap1 || !bmap2)
+		return -1;
+
 	if (bmap1 == bmap2)
 		return 0;
 	if (ISL_F_ISSET(bmap1, ISL_BASIC_MAP_RATIONAL) !=
-- 
2.11.4.GIT