src/share/vm/gc/parallel/psPromotionManager.cpp

rev 10933 : 8154736: enhancement of cmpxchg and copy_to_survivor for ppc64
Reviewed-by:
Contributed-by: HORII@jp.ibm.com, mdoerr

*** 437,447 ****
    // Attempt to CAS in the header.
    // This tests if the header is still the same as when
    // this started.  If it is the same (i.e., no forwarding
    // pointer has been installed), then this thread owns
    // it.
!   if (obj->cas_forward_to(obj, obj_mark)) {
      // We won any races, we "own" this object.
      assert(obj == obj->forwardee(), "Sanity");
  
      _promotion_failed_info.register_copy_failure(obj->size());
  
--- 437,447 ----
    // Attempt to CAS in the header.
    // This tests if the header is still the same as when
    // this started.  If it is the same (i.e., no forwarding
    // pointer has been installed), then this thread owns
    // it.
!   if (obj->cas_forward_to(obj, obj_mark, memory_order_relaxed)) {
      // We won any races, we "own" this object.
      assert(obj == obj->forwardee(), "Sanity");
  
      _promotion_failed_info.register_copy_failure(obj->size());