# HG changeset patch
# User Lukas Stadler <lukas.stadler@jku.at>
# Date 1390916388 -3600
# Node ID d6ac7ebead358eb797393b8ce5cd1c976df3bb49
# Parent  fc5e2c808a238406dbd7a918495c3f03c1b37b59
canonicalize a LoadField on a null constant object to deopt

diff -r fc5e2c808a23 -r d6ac7ebead35 graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/LoadFieldNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/LoadFieldNode.java	Tue Jan 28 12:38:08 2014 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/LoadFieldNode.java	Tue Jan 28 14:39:48 2014 +0100
@@ -74,6 +74,9 @@
                 return phi;
             }
         }
+        if (!isStatic() && object().isNullConstant()) {
+            return graph().add(new DeoptimizeNode(DeoptimizationAction.None, DeoptimizationReason.NullCheckException));
+        }
         return this;
     }