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6700789: G1: Enable use of compressed oops with G1 heaps

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Modifications to G1 so as to allow the use of compressed oops.

Reviewed-by: apetrusenko, coleenp, jmasa, kvn, never, phh, tonyp
This commit is contained in:
Y. Srinivas Ramakrishna 2009-07-14 15:40:39 -07:00
parent 50d7db1805
commit 075c1335cb
58 changed files with 1233 additions and 1175 deletions
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20
hotspot/src/share/vm/gc_implementation/g1/g1RemSet.inline.hpp
View file

@ -30,12 +30,8 @@ inline size_t G1RemSet::n_workers() {
}
}
inline void HRInto_G1RemSet::write_ref_nv(HeapRegion* from, oop* p) {
par_write_ref(from, p, 0);
}
inline void HRInto_G1RemSet::write_ref(HeapRegion* from, oop* p) {
write_ref_nv(from, p);
template <class T> inline void HRInto_G1RemSet::write_ref_nv(HeapRegion* from, T* p) {
par_write_ref_nv(from, p, 0);
}
inline bool HRInto_G1RemSet::self_forwarded(oop obj) {
@ -43,8 +39,8 @@ inline bool HRInto_G1RemSet::self_forwarded(oop obj) {
return result;
}
inline void HRInto_G1RemSet::par_write_ref(HeapRegion* from, oop* p, int tid) {
oop obj = *p;
template <class T> inline void HRInto_G1RemSet::par_write_ref_nv(HeapRegion* from, T* p, int tid) {
oop obj = oopDesc::load_decode_heap_oop(p);
#ifdef ASSERT
// can't do because of races
// assert(obj == NULL || obj->is_oop(), "expected an oop");
@ -71,7 +67,7 @@ inline void HRInto_G1RemSet::par_write_ref(HeapRegion* from, oop* p, int tid) {
// false during the evacuation failure handing.
if (_par_traversal_in_progress &&
to->in_collection_set() && !self_forwarded(obj)) {
_new_refs[tid]->push(p);
_new_refs[tid]->push((void*)p);
// Deferred updates to the Cset are either discarded (in the normal case),
// or processed (if an evacuation failure occurs) at the end
// of the collection.
@ -89,11 +85,7 @@ inline void HRInto_G1RemSet::par_write_ref(HeapRegion* from, oop* p, int tid) {
}
}
inline void UpdateRSOopClosure::do_oop(narrowOop* p) {
guarantee(false, "NYI");
}
inline void UpdateRSOopClosure::do_oop(oop* p) {
template <class T> inline void UpdateRSOopClosure::do_oop_work(T* p) {
assert(_from != NULL, "from region must be non-NULL");
_rs->par_write_ref(_from, p, _worker_i);
}