src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.common/src/org/graalvm/compiler/core/common/type/AbstractPointerStamp.java

rev 52509 : [mq]: graal

@@ -140,14 +140,17 @@
     }
 
     @Override
     public Constant asConstant() {
         if (alwaysNull) {
-            return JavaConstant.NULL_POINTER;
-        } else {
-            return null;
+            return nullConstant();
+        }
+        return super.asConstant();
         }
+
+    public JavaConstant nullConstant() {
+        return JavaConstant.NULL_POINTER;
     }
 
     @Override
     public JavaKind getStackKind() {
         return JavaKind.Illegal;