diff -r 0152ad7b38b8 -r 6df94ce3ab2f src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.phases.common/src/org/graalvm/compiler/phases/common/AddressLoweringByUsePhase.java
--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.phases.common/src/org/graalvm/compiler/phases/common/AddressLoweringByUsePhase.java	Tue Sep 24 08:54:08 2019 -0700
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.phases.common/src/org/graalvm/compiler/phases/common/AddressLoweringByUsePhase.java	Tue Sep 24 12:47:15 2019 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2017, Red Hat Inc. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -69,7 +69,7 @@
             AddressNode lowered;
             if (node instanceof ReadNode) {
                 ReadNode readNode = (ReadNode) node;
-                Stamp stamp = readNode.stamp(NodeView.DEFAULT);
+                Stamp stamp = readNode.getAccessStamp();
                 address = readNode.getAddress();
                 lowered = lowering.lower(readNode, stamp, address);
             } else if (node instanceof JavaReadNode) {
@@ -79,12 +79,12 @@
                 lowered = lowering.lower(javaReadNode, stamp, address);
             } else if (node instanceof FloatingReadNode) {
                 FloatingReadNode floatingReadNode = (FloatingReadNode) node;
-                Stamp stamp = floatingReadNode.stamp(NodeView.DEFAULT);
+                Stamp stamp = floatingReadNode.getAccessStamp();
                 address = floatingReadNode.getAddress();
                 lowered = lowering.lower(floatingReadNode, stamp, address);
             } else if (node instanceof AbstractWriteNode) {
                 AbstractWriteNode abstractWriteNode = (AbstractWriteNode) node;
-                Stamp stamp = abstractWriteNode.value().stamp(NodeView.DEFAULT);
+                Stamp stamp = abstractWriteNode.getAccessStamp();
                 address = abstractWriteNode.getAddress();
                 lowered = lowering.lower(abstractWriteNode, stamp, address);
             } else if (node instanceof PrefetchAllocateNode) {