src/share/vm/opto/macro.cpp

@@ -849,10 +849,11 @@
       if (iklass != NULL) {
         field = iklass->nonstatic_field_at(j);
         offset = field->offset();
         elem_type = field->type();
         basic_elem_type = field->layout_type();
+        assert(basic_elem_type != T_VALUETYPE, "value type fields are flattened");
       } else {
         offset = array_base + j * (intptr_t)element_size;
       }
 
       const Type *field_type;