src/hotspot/share/oops/oop.inline.hpp

rev 48545 : Value-based classes (vbc) / Oop value test via metadata ptr

*** 93,102 ****
--- 93,112 ----
  narrowKlass* oopDesc::compressed_klass_addr() {
    assert(UseCompressedClassPointers, "only called by compressed klass pointers");
    return &_metadata._compressed_klass;
  }
  
+ #if INCLUDE_VBC // fast oop only test (does not load klass)
+ bool oopDesc::klass_is_value_based() {
+         if (UseCompressedClassPointers) {
+                 return Klass::decode_ptr_is_value_based(_metadata._compressed_klass);
+         } else {
+                 return Klass::ptr_is_value_based(_metadata._klass);
+         }
+ }
+ #endif
+ 
  #define CHECK_SET_KLASS(k)                                                \
    do {                                                                    \
      assert(Universe::is_bootstrapping() || k != NULL, "NULL Klass");      \
      assert(Universe::is_bootstrapping() || k->is_klass(), "not a Klass"); \
    } while (0)