diff -r e92153ed8bdc -r 29b0d0b61615 src/hotspot/share/gc/z/zLiveMap.inline.hpp
--- a/src/hotspot/share/gc/z/zLiveMap.inline.hpp	Mon Nov 25 12:30:24 2019 +0100
+++ b/src/hotspot/share/gc/z/zLiveMap.inline.hpp	Mon Nov 25 12:31:39 2019 +0100
@@ -121,8 +121,8 @@
 }
 
 inline void ZLiveMap::inc_live(uint32_t objects, size_t bytes) {
-  Atomic::add(objects, &_live_objects);
-  Atomic::add(bytes, &_live_bytes);
+  Atomic::add(&_live_objects, objects);
+  Atomic::add(&_live_bytes, bytes);
 }
 
 inline BitMap::idx_t ZLiveMap::segment_start(BitMap::idx_t segment) const {