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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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28
hotspot/src/share/vm/memory/space.cpp
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@ -25,6 +25,9 @@
# include "incls/_precompiled.incl"
# include "incls/_space.cpp.incl"
void SpaceMemRegionOopsIterClosure::do_oop(oop* p) { SpaceMemRegionOopsIterClosure::do_oop_work(p); }
void SpaceMemRegionOopsIterClosure::do_oop(narrowOop* p) { SpaceMemRegionOopsIterClosure::do_oop_work(p); }
HeapWord* DirtyCardToOopClosure::get_actual_top(HeapWord* top,
HeapWord* top_obj) {
if (top_obj != NULL) {
@ -150,10 +153,6 @@ DirtyCardToOopClosure* Space::new_dcto_cl(OopClosure* cl,
return new DirtyCardToOopClosure(this, cl, precision, boundary);
}
void FilteringClosure::do_oop(oop* p) {
do_oop_nv(p);
}
HeapWord* ContiguousSpaceDCTOC::get_actual_top(HeapWord* top,
HeapWord* top_obj) {
if (top_obj != NULL && top_obj < (_sp->toContiguousSpace())->top()) {
@ -337,7 +336,7 @@ HeapWord* CompactibleSpace::forward(oop q, size_t size,
assert(q->forwardee() == NULL, "should be forwarded to NULL");
}
debug_only(MarkSweep::register_live_oop(q, size));
VALIDATE_MARK_SWEEP_ONLY(MarkSweep::register_live_oop(q, size));
compact_top += size;
// we need to update the offset table so that the beginnings of objects can be
@ -406,13 +405,13 @@ void Space::adjust_pointers() {
if (oop(q)->is_gc_marked()) {
// q is alive
debug_only(MarkSweep::track_interior_pointers(oop(q)));
VALIDATE_MARK_SWEEP_ONLY(MarkSweep::track_interior_pointers(oop(q)));
// point all the oops to the new location
size_t size = oop(q)->adjust_pointers();
debug_only(MarkSweep::check_interior_pointers());
VALIDATE_MARK_SWEEP_ONLY(MarkSweep::check_interior_pointers());
debug_only(prev_q = q);
debug_only(MarkSweep::validate_live_oop(oop(q), size));
VALIDATE_MARK_SWEEP_ONLY(MarkSweep::validate_live_oop(oop(q), size));
q += size;
} else {
@ -884,10 +883,13 @@ OffsetTableContigSpace::OffsetTableContigSpace(BlockOffsetSharedArray* sharedOff
class VerifyOldOopClosure : public OopClosure {
public:
oop the_obj;
bool allow_dirty;
oop _the_obj;
bool _allow_dirty;
void do_oop(oop* p) {
the_obj->verify_old_oop(p, allow_dirty);
_the_obj->verify_old_oop(p, _allow_dirty);
}
void do_oop(narrowOop* p) {
_the_obj->verify_old_oop(p, _allow_dirty);
}
};
@ -898,7 +900,7 @@ void OffsetTableContigSpace::verify(bool allow_dirty) const {
HeapWord* p = bottom();
HeapWord* prev_p = NULL;
VerifyOldOopClosure blk; // Does this do anything?
blk.allow_dirty = allow_dirty;
blk._allow_dirty = allow_dirty;
int objs = 0;
int blocks = 0;
@ -919,7 +921,7 @@ void OffsetTableContigSpace::verify(bool allow_dirty) const {
if (objs == OBJ_SAMPLE_INTERVAL) {
oop(p)->verify();
blk.the_obj = oop(p);
blk._the_obj = oop(p);
oop(p)->oop_iterate(&blk);
objs = 0;
} else {