# HG changeset patch
# User Lukas Stadler <lukas.stadler@jku.at>
# Date 1360315914 -3600
# Node ID 43201885d40009cb0005d0b8805d82a93e3be9dc
# Parent  eaecd7c187ad6cfac851a1d49cd504c33fe6b60b
allow null return values for ArrayLengthProvider.length()

diff -r eaecd7c187ad -r 43201885d400 graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/ArrayLengthNode.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/ArrayLengthNode.java	Fri Feb 08 10:26:30 2013 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/ArrayLengthNode.java	Fri Feb 08 10:31:54 2013 +0100
@@ -47,8 +47,9 @@
     public ValueNode canonical(CanonicalizerTool tool) {
         if (array() instanceof ArrayLengthProvider) {
             ValueNode length = ((ArrayLengthProvider) array()).length();
-            assert length != null;
-            return length;
+            if (length != null) {
+                return length;
+            }
         }
         MetaAccessProvider runtime = tool.runtime();
         if (runtime != null && array().isConstant() && !array().isNullConstant()) {