--- old/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.aarch64/src/org/graalvm/compiler/core/aarch64/AArch64LIRKindTool.java	2017-12-13 08:52:22.000000000 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.aarch64/src/org/graalvm/compiler/core/aarch64/AArch64LIRKindTool.java	2017-12-13 08:52:22.000000000 -0800
@@ -68,7 +68,7 @@
 
     @Override
     public LIRKind getNarrowOopKind() {
-        return LIRKind.reference(AArch64Kind.DWORD);
+        return LIRKind.compressedReference(AArch64Kind.DWORD);
     }
 
     @Override