truffle: src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp comparison

comparison src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp @ 113:ba764ed4b6f2

6420645: Create a vm that uses compressed oops for up to 32gb heapsizes Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold

author	coleenp
date	Sun, 13 Apr 2008 17:43:42 -0400
parents	6432c3bb6240
children	790e66e5fbac 37f87013dfd8

comparison

equal deleted inserted replaced

-:a49a647afe9a
+:ba764ed4b6f2
 // mark and handle it specially later on.
 q->init_mark();
 assert(q->forwardee() == NULL, "should be forwarded to NULL");
 }
-debug_only(MarkSweep::register_live_oop(q, adjusted_size));
+VALIDATE_MARK_SWEEP_ONLY(MarkSweep::register_live_oop(q, adjusted_size));
 compact_top += adjusted_size;
 // we need to update the offset table so that the beginnings of objects can be
 // found during scavenge.  Note that we are updating the offset table based on
 // where the object will be once the compaction phase finishes.
 _bt.verify_not_unallocated((HeapWord*)fc, fc->size());
 }
 return fc;
 }
-oop CompactibleFreeListSpace::promote(oop obj, size_t obj_size, oop* ref) {
+oop CompactibleFreeListSpace::promote(oop obj, size_t obj_size) {
 assert(obj_size == (size_t)obj->size(), "bad obj_size passed in");
 assert_locked();
 // if we are tracking promotions, then first ensure space for
 // promotion (including spooling space for saving header if necessary).
 splitDeath(from);
 splitBirth(to1);
 splitBirth(to2);
 }
 void CompactibleFreeListSpace::print() const {
 tty->print(" CompactibleFreeListSpace");
 Space::print();
 }
 // Verify that the SpoolBlocks look like free blocks of
 // appropriate sizes... To be done ...
 }
 class VerifyAllBlksClosure: public BlkClosure {
+private:
 const CompactibleFreeListSpace* _sp;
 const MemRegion                 _span;
 public:
 VerifyAllBlksClosure(const CompactibleFreeListSpace* sp,
 MemRegion span) :  _sp(sp), _span(span) { }
-size_t do_blk(HeapWord* addr) {
+virtual size_t do_blk(HeapWord* addr) {
 size_t res;
 if (_sp->block_is_obj(addr)) {
 oop p = oop(addr);
 guarantee(p->is_oop(), "Should be an oop");
 res = _sp->adjustObjectSize(p->size());
 return res;
 }
 };
 class VerifyAllOopsClosure: public OopClosure {
+private:
 const CMSCollector*             _collector;
 const CompactibleFreeListSpace* _sp;
 const MemRegion                 _span;
 const bool                      _past_remark;
 const CMSBitMap*                _bit_map;
+protected:
+void do_oop(void* p, oop obj) {
+if (_span.contains(obj)) { // the interior oop points into CMS heap
+if (!_span.contains(p)) { // reference from outside CMS heap
+// Should be a valid object; the first disjunct below allows
+// us to sidestep an assertion in block_is_obj() that insists
+// that p be in _sp. Note that several generations (and spaces)
+// are spanned by _span (CMS heap) above.
+guarantee(!_sp->is_in_reserved(obj) ||
+_sp->block_is_obj((HeapWord*)obj),
+"Should be an object");
+guarantee(obj->is_oop(), "Should be an oop");
+obj->verify();
+if (_past_remark) {
+// Remark has been completed, the object should be marked
+_bit_map->isMarked((HeapWord*)obj);
+}
+} else { // reference within CMS heap
+if (_past_remark) {
+// Remark has been completed -- so the referent should have
+// been marked, if referring object is.
+if (_bit_map->isMarked(_collector->block_start(p))) {
+guarantee(_bit_map->isMarked((HeapWord*)obj), "Marking error?");
+}
+}
+}
+} else if (_sp->is_in_reserved(p)) {
+// the reference is from FLS, and points out of FLS
+guarantee(obj->is_oop(), "Should be an oop");
+obj->verify();
+}
+}
+template <class T> void do_oop_work(T* p) {
+T heap_oop = oopDesc::load_heap_oop(p);
+if (!oopDesc::is_null(heap_oop)) {
+oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
+do_oop(p, obj);
+}
+}
 public:
 VerifyAllOopsClosure(const CMSCollector* collector,
 const CompactibleFreeListSpace* sp, MemRegion span,
 bool past_remark, CMSBitMap* bit_map) :
 OopClosure(), _collector(collector), _sp(sp), _span(span),
 _past_remark(past_remark), _bit_map(bit_map) { }
-void do_oop(oop* ptr) {
+virtual void do_oop(oop* p)       { VerifyAllOopsClosure::do_oop_work(p); }
-oop p = *ptr;
+virtual void do_oop(narrowOop* p) { VerifyAllOopsClosure::do_oop_work(p); }
-if (p != NULL) {
-if (_span.contains(p)) { // the interior oop points into CMS heap
-if (!_span.contains(ptr)) { // reference from outside CMS heap
-// Should be a valid object; the first disjunct below allows
-// us to sidestep an assertion in block_is_obj() that insists
-// that p be in _sp. Note that several generations (and spaces)
-// are spanned by _span (CMS heap) above.
-guarantee(!_sp->is_in_reserved(p) || _sp->block_is_obj((HeapWord*)p),
-"Should be an object");
-guarantee(p->is_oop(), "Should be an oop");
-p->verify();
-if (_past_remark) {
-// Remark has been completed, the object should be marked
-_bit_map->isMarked((HeapWord*)p);
-}
-}
-else { // reference within CMS heap
-if (_past_remark) {
-// Remark has been completed -- so the referent should have
-// been marked, if referring object is.
-if (_bit_map->isMarked(_collector->block_start(ptr))) {
-guarantee(_bit_map->isMarked((HeapWord*)p), "Marking error?");
-}
-}
-}
-} else if (_sp->is_in_reserved(ptr)) {
-// the reference is from FLS, and points out of FLS
-guarantee(p->is_oop(), "Should be an oop");
-p->verify();
-}
-}
-}
 };
 void CompactibleFreeListSpace::verify(bool ignored) const {
 assert_lock_strong(&_freelistLock);
 verify_objects_initialized();

Mercurial > hg > truffle

comparison src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp @ 113:ba764ed4b6f2