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8075957: Reduce calls to the GC specific object visitors in oopDesc

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Reviewed-by: brutisso, mgerdin, pliden
This commit is contained in:
Stefan Karlsson 2015-03-26 11:28:19 +01:00
parent 602b7d79e9
commit ba1d121fe0
26 changed files with 82 additions and 76 deletions
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26
hotspot/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp
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@ -1025,9 +1025,6 @@ class PSParallelCompact : AllStatic {
bool maximum_heap_compaction,
ParallelOldTracer *gc_tracer);
template <class T>
static inline void follow_root(ParCompactionManager* cm, T* p);
// Compute the dense prefix for the designated space. This is an experimental
// implementation currently not used in production.
static HeapWord* compute_dense_prefix_via_density(const SpaceId id,
@ -1335,23 +1332,6 @@ inline bool PSParallelCompact::is_marked(oop obj) {
return mark_bitmap()->is_marked(obj);
}
template <class T>
inline void PSParallelCompact::follow_root(ParCompactionManager* cm, T* p) {
assert(!Universe::heap()->is_in_reserved(p),
"roots shouldn't be things within the heap");
T heap_oop = oopDesc::load_heap_oop(p);
if (!oopDesc::is_null(heap_oop)) {
oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
if (mark_bitmap()->is_unmarked(obj)) {
if (mark_obj(obj)) {
obj->follow_contents(cm);
}
}
}
cm->follow_marking_stacks();
}
template <class T>
inline void PSParallelCompact::mark_and_push(ParCompactionManager* cm, T* p) {
T heap_oop = oopDesc::load_heap_oop(p);
@ -1524,12 +1504,6 @@ class UpdateOnlyClosure: public ParMarkBitMapClosure {
inline void do_addr(HeapWord* addr);
};
inline void UpdateOnlyClosure::do_addr(HeapWord* addr)
{
_start_array->allocate_block(addr);
oop(addr)->update_contents(compaction_manager());
}
class FillClosure: public ParMarkBitMapClosure
{
public: