--- old/src/share/vm/opto/parse3.cpp	2016-11-16 09:06:13.170498608 +0100
+++ new/src/share/vm/opto/parse3.cpp	2016-11-16 09:06:13.098498606 +0100
@@ -180,7 +180,7 @@
 
   bool must_assert_null = false;
 
-  if( bt == T_OBJECT ) {
+  if (bt == T_OBJECT || bt == T_VALUETYPE) {
     if (!field->type()->is_loaded()) {
       type = TypeInstPtr::BOTTOM;
       must_assert_null = true;
@@ -200,6 +200,14 @@
   if (support_IRIW_for_not_multiple_copy_atomic_cpu && field->is_volatile()) {
     insert_mem_bar(Op_MemBarVolatile);   // StoreLoad barrier
   }
+
+  if (type->isa_valuetypeptr()) {
+    // Load value type from flattened field
+    Node* vt = ValueTypeNode::make(_gvn, field_klass->as_value_klass(), map()->memory(), field->holder(), obj, offset);
+    push_node(bt, vt);
+    return;
+  }
+
   // Build the load.
   //
   MemNode::MemOrd mo = is_vol ? MemNode::acquire : MemNode::unordered;
@@ -282,6 +290,9 @@
       field_type = TypeOopPtr::make_from_klass(field->type()->as_klass());
     }
     store = store_oop_to_object(control(), obj, adr, adr_type, val, field_type, bt, mo);
+  } else if (bt == T_VALUETYPE) {
+    // Store value type to flattened field
+    val->as_ValueType()->store_to_field(this, field->holder(), obj, offset);
   } else {
     bool needs_atomic_access = is_vol || AlwaysAtomicAccesses;
     store = store_to_memory(control(), adr, val, bt, adr_type, mo, needs_atomic_access);