--- old/src/hotspot/share/gc/shared/modRefBarrierSet.inline.hpp 2019-11-21 11:55:06.224885733 +0100 +++ new/src/hotspot/share/gc/shared/modRefBarrierSet.inline.hpp 2019-11-21 11:55:05.972881472 +0100 @@ -67,10 +67,10 @@ template template inline oop ModRefBarrierSet::AccessBarrier:: -oop_atomic_cmpxchg_in_heap(oop new_value, T* addr, oop compare_value) { +oop_atomic_cmpxchg_in_heap(T* addr, oop compare_value, oop new_value) { BarrierSetT *bs = barrier_set_cast(barrier_set()); bs->template write_ref_field_pre(addr); - oop result = Raw::oop_atomic_cmpxchg(new_value, addr, compare_value); + oop result = Raw::oop_atomic_cmpxchg(addr, compare_value, new_value); if (result == compare_value) { bs->template write_ref_field_post(addr, new_value); }