--- old/src/hotspot/share/gc/parallel/psScavenge.inline.hpp	2018-03-22 16:37:42.772885528 +0100
+++ new/src/hotspot/share/gc/parallel/psScavenge.inline.hpp	2018-03-22 16:37:42.576885535 +0100
@@ -31,6 +31,7 @@
 #include "logging/log.hpp"
 #include "memory/iterator.hpp"
 #include "memory/resourceArea.hpp"
+#include "oops/access.inline.hpp"
 #include "utilities/globalDefinitions.hpp"
 
 inline void PSScavenge::save_to_space_top_before_gc() {
@@ -39,14 +40,14 @@
 }
 
 template <class T> inline bool PSScavenge::should_scavenge(T* p) {
-  T heap_oop = oopDesc::load_heap_oop(p);
+  T heap_oop = RawAccess<>::oop_load(p);
   return PSScavenge::is_obj_in_young(heap_oop);
 }
 
 template <class T>
 inline bool PSScavenge::should_scavenge(T* p, MutableSpace* to_space) {
   if (should_scavenge(p)) {
-    oop obj = oopDesc::load_decode_heap_oop_not_null(p);
+    oop obj = RawAccess<OOP_NOT_NULL>::oop_load(p);
     // Skip objects copied to to_space since the scavenge started.
     HeapWord* const addr = (HeapWord*)obj;
     return addr < to_space_top_before_gc() || addr >= to_space->end();
@@ -107,7 +108,7 @@
       } else {
         new_obj = _pm->copy_to_survivor_space</*promote_immediately=*/false>(o);
       }
-      oopDesc::encode_store_heap_oop_not_null(p, new_obj);
+      RawAccess<>::oop_store(p, new_obj);
 
       if (PSScavenge::is_obj_in_young(new_obj)) {
         do_cld_barrier();