211 }
212 
213 template <G1Barrier barrier, bool should_mark>
214 template <class T>
215 void G1ParCopyClosure<barrier, should_mark>::do_oop_work(T* p) {
216   T heap_oop = RawAccess<>::oop_load(p);
217 
218   if (CompressedOops::is_null(heap_oop)) {
219     return;
220   }
221 
222   oop obj = CompressedOops::decode_not_null(heap_oop);
223 
224   assert(_worker_id == _par_scan_state->worker_id(), "sanity");
225 
226   const G1HeapRegionAttr state = _g1h->region_attr(obj);
227   if (state.is_in_cset()) {
228     oop forwardee;
229     markWord m = obj->mark();
230     if (m.is_marked()) {
231       forwardee = cast_to_oop(m.decode_pointer());
232     } else {
233       forwardee = _par_scan_state->copy_to_survivor_space(state, obj, m);
234     }
235     assert(forwardee != nullptr, "forwardee should not be null");
236     RawAccess<IS_NOT_NULL>::oop_store(p, forwardee);
237 
238     if (barrier == G1BarrierCLD) {
239       do_cld_barrier(forwardee);
240     }
241   } else {
242     if (state.is_humongous_candidate()) {
243       _g1h->set_humongous_is_live(obj);
244     } else if ((barrier != G1BarrierNoOptRoots) && state.is_optional()) {
245       _par_scan_state->remember_root_into_optional_region(p);
246     }
247 
248     // The object is not in the collection set. should_mark is true iff the
249     // current closure is applied on strong roots (and weak roots when class
250     // unloading is disabled) in a concurrent mark start pause.
251     if (should_mark) {

211 }
212 
213 template <G1Barrier barrier, bool should_mark>
214 template <class T>
215 void G1ParCopyClosure<barrier, should_mark>::do_oop_work(T* p) {
216   T heap_oop = RawAccess<>::oop_load(p);
217 
218   if (CompressedOops::is_null(heap_oop)) {
219     return;
220   }
221 
222   oop obj = CompressedOops::decode_not_null(heap_oop);
223 
224   assert(_worker_id == _par_scan_state->worker_id(), "sanity");
225 
226   const G1HeapRegionAttr state = _g1h->region_attr(obj);
227   if (state.is_in_cset()) {
228     oop forwardee;
229     markWord m = obj->mark();
230     if (m.is_marked()) {
231       forwardee = obj->forwardee(m);
232     } else {
233       forwardee = _par_scan_state->copy_to_survivor_space(state, obj, m);
234     }
235     assert(forwardee != nullptr, "forwardee should not be null");
236     RawAccess<IS_NOT_NULL>::oop_store(p, forwardee);
237 
238     if (barrier == G1BarrierCLD) {
239       do_cld_barrier(forwardee);
240     }
241   } else {
242     if (state.is_humongous_candidate()) {
243       _g1h->set_humongous_is_live(obj);
244     } else if ((barrier != G1BarrierNoOptRoots) && state.is_optional()) {
245       _par_scan_state->remember_root_into_optional_region(p);
246     }
247 
248     // The object is not in the collection set. should_mark is true iff the
249     // current closure is applied on strong roots (and weak roots when class
250     // unloading is disabled) in a concurrent mark start pause.
251     if (should_mark) {