From d9d8b447db1d1ff4f09dc952fe755c7b8e168d92 Mon Sep 17 00:00:00 2001
From: Sven Verdoolaege <skimo@kotnet.org>
Date: Tue, 4 Jun 2013 14:22:06 +0200
Subject: [PATCH] isl_tab_pip.c: use_shifted: avoid invalid access on error
 path

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
---
 isl_tab_pip.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/isl_tab_pip.c b/isl_tab_pip.c
index 6f4a2a7..6d8496e 100644
--- a/isl_tab_pip.c
+++ b/isl_tab_pip.c
@@ -2729,6 +2729,8 @@ static struct isl_basic_set *drop_constant_terms(struct isl_basic_set *bset)
 
 static int use_shifted(struct isl_context_gbr *cgbr)
 {
+	if (!cgbr->tab)
+		return 0;
 	return cgbr->tab->bmap->n_eq == 0 && cgbr->tab->bmap->n_div == 0;
 }
 
-- 
2.7.4