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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes

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Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv

Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
This commit is contained in:
Coleen Phillimore 2008-04-13 17:43:42 -04:00
parent 680ecf1611
commit 4a831d45f0
273 changed files with 6585 additions and 2993 deletions
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30
hotspot/src/share/vm/memory/cardTableRS.cpp
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@ -191,7 +191,7 @@ public:
// prev-younger-gen ==> cur_youngergen_and_prev_nonclean_card
// cur-younger-gen ==> cur_younger_gen
// cur_youngergen_and_prev_nonclean_card ==> no change.
void CardTableRS::write_ref_field_gc_par(oop* field, oop new_val) {
void CardTableRS::write_ref_field_gc_par(void* field, oop new_val) {
jbyte* entry = ct_bs()->byte_for(field);
do {
jbyte entry_val = *entry;
@ -290,28 +290,36 @@ void CardTableRS::invalidate_or_clear(Generation* gen, bool younger,
class VerifyCleanCardClosure: public OopClosure {
HeapWord* boundary;
HeapWord* begin; HeapWord* end;
public:
void do_oop(oop* p) {
private:
HeapWord* _boundary;
HeapWord* _begin;
HeapWord* _end;
protected:
template <class T> void do_oop_work(T* p) {
HeapWord* jp = (HeapWord*)p;
if (jp >= begin && jp < end) {
guarantee(*p == NULL || (HeapWord*)p < boundary
|| (HeapWord*)(*p) >= boundary,
if (jp >= _begin && jp < _end) {
oop obj = oopDesc::load_decode_heap_oop(p);
guarantee(obj == NULL ||
(HeapWord*)p < _boundary ||
(HeapWord*)obj >= _boundary,
"pointer on clean card crosses boundary");
}
}
VerifyCleanCardClosure(HeapWord* b, HeapWord* _begin, HeapWord* _end) :
boundary(b), begin(_begin), end(_end) {}
public:
VerifyCleanCardClosure(HeapWord* b, HeapWord* begin, HeapWord* end) :
_boundary(b), _begin(begin), _end(end) {}
virtual void do_oop(oop* p) { VerifyCleanCardClosure::do_oop_work(p); }
virtual void do_oop(narrowOop* p) { VerifyCleanCardClosure::do_oop_work(p); }
};
class VerifyCTSpaceClosure: public SpaceClosure {
private:
CardTableRS* _ct;
HeapWord* _boundary;
public:
VerifyCTSpaceClosure(CardTableRS* ct, HeapWord* boundary) :
_ct(ct), _boundary(boundary) {}
void do_space(Space* s) { _ct->verify_space(s, _boundary); }
virtual void do_space(Space* s) { _ct->verify_space(s, _boundary); }
};
class VerifyCTGenClosure: public GenCollectedHeap::GenClosure {