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src/hotspot/share/gc/g1/g1SATBCardTableModRefBS.inline.hpp
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rev 48471 : [mq]: RFE_Access_constantPoolCache_new_decorator
@@ -59,43 +59,48 @@
val |= (jbyte)claimed_card_val();
}
_byte_map[card_index] = val;
}
-inline void G1SATBCardTableModRefBS::enqueue_if_weak(DecoratorSet decorators, oop value) {
+inline void G1SATBCardTableModRefBS::enqueue_if_weak_or_archive(DecoratorSet decorators, oop value) {
assert((decorators & ON_UNKNOWN_OOP_REF) == 0, "Reference strength must be known");
+ // Archive roots need to be enqueued since they add subgraphs to the
+ // Java heap that were not there at the snapshot when marking started.
+ // Weak and phantom references also need enqueueing for similar reasons.
+ const bool in_archive_root = (decorators & IN_ARCHIVE_ROOT) != 0;
const bool on_strong_oop_ref = (decorators & ON_STRONG_OOP_REF) != 0;
const bool peek = (decorators & AS_NO_KEEPALIVE) != 0;
+ const bool needs_enqueue = in_archive_root || (!peek && !on_strong_oop_ref);
- if (!peek && !on_strong_oop_ref && value != NULL) {
+ if (needs_enqueue && value != NULL) {
enqueue(value);
}
}
template <DecoratorSet decorators, typename BarrierSetT>
template <typename T>
inline oop G1SATBCardTableLoggingModRefBS::AccessBarrier<decorators, BarrierSetT>::
oop_load_not_in_heap(T* addr) {
oop value = ModRef::oop_load_not_in_heap(addr);
- enqueue_if_weak(decorators, value);
+ enqueue_if_weak_or_archive(decorators, value);
return value;
}
template <DecoratorSet decorators, typename BarrierSetT>
template <typename T>
inline oop G1SATBCardTableLoggingModRefBS::AccessBarrier<decorators, BarrierSetT>::
oop_load_in_heap(T* addr) {
oop value = ModRef::oop_load_in_heap(addr);
- enqueue_if_weak(decorators, value);
+ enqueue_if_weak_or_archive(decorators, value);
return value;
}
template <DecoratorSet decorators, typename BarrierSetT>
inline oop G1SATBCardTableLoggingModRefBS::AccessBarrier<decorators, BarrierSetT>::
oop_load_in_heap_at(oop base, ptrdiff_t offset) {
oop value = ModRef::oop_load_in_heap_at(base, offset);
- enqueue_if_weak(AccessBarrierSupport::resolve_possibly_unknown_oop_ref_strength<decorators>(base, offset), value);
+ enqueue_if_weak_or_archive(AccessBarrierSupport::resolve_possibly_unknown_oop_ref_strength<decorators>(base, offset), value);
return value;
}
template <DecoratorSet decorators, typename BarrierSetT>
template <typename T>
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