# HG changeset patch
# User Gilles Duboscq <duboscq@ssw.jku.at>
# Date 1378888569 -7200
# Node ID 3c2dc836469683835444f7d90f95cbe2c37b0875
# Parent  5d6ff483a5e92ffb0c131a1010d7275ecca3d681
CheckCastNode.canonical should not assume that tool.assumptions is not null

diff -r 5d6ff483a5e9 -r 3c2dc8364696 graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/CheckCastNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/CheckCastNode.java	Wed Sep 11 10:21:51 2013 +0200
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/CheckCastNode.java	Wed Sep 11 10:36:09 2013 +0200
@@ -159,7 +159,7 @@
         if (ObjectStamp.isObjectAlwaysNull(object())) {
             return object();
         }
-        if (tool.assumptions().useOptimisticAssumptions()) {
+        if (tool.assumptions() != null && tool.assumptions().useOptimisticAssumptions()) {
             ResolvedJavaType exactType = type.findUniqueConcreteSubtype();
             if (exactType != null && exactType != type) {
                 // Propagate more precise type information to usages of the checkcast.