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

@@ -94,10 +94,20 @@
 narrowKlass* oopDesc::compressed_klass_addr() {
   assert(UseCompressedClassPointers, "only called by compressed klass pointers");
   return &_metadata._compressed_klass;
 }
 
+// oop only test (does not load klass)
+bool oopDesc::klass_is_value_type() {
+  if (UseCompressedClassPointers) {
+    return Klass::decode_ptr_is_value_type(_metadata._compressed_klass);
+  } else {
+    return Klass::ptr_is_value_type(_metadata._klass);
+  }
+}
+
+
 #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)