2013-04-03 Richard Biener <rguenther@suse.de>

[pf3gnuchains/gcc-fork.git] / gcc / tree-switch-conversion.c

diff --git a/gcc/tree-switch-conversion.c b/gcc/tree-switch-conversion.c
index 4fb3e8a..20888d2 100644 (file)
--- a/gcc/tree-switch-conversion.c
+++ b/gcc/tree-switch-conversion.c
@@ -283,7 +283,12 @@ check_process_case (tree cs)
          return false;
        }
 
-      e = single_succ_edge (label_bb);
+      if (!single_succ_p (label_bb))
+       {
+         info.reason
+           = "  Bad case - a non-final BB without a single successor\n";
+         return false;
+       }
       following_bb = single_succ (label_bb);
     }