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7112997: Remove obsolete code ResetObjectsClosure and VerifyUpdateClosure

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Remove obsolete code.

Reviewed-by: brutisso, ysr, jcoomes
This commit is contained in:
Jon Masamitsu 2011-11-22 14:59:34 -08:00
parent 404bb0d0ac
commit 71ed60ac69
6 changed files with 4 additions and 117 deletions
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42
hotspot/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp
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@ -3370,20 +3370,7 @@ PSParallelCompact::move_and_update(ParCompactionManager* cm, SpaceId space_id) {
HeapWord* beg_addr = sp->bottom();
HeapWord* end_addr = sp->top();
#ifdef ASSERT
assert(beg_addr <= dp_addr && dp_addr <= end_addr, "bad dense prefix");
if (cm->should_verify_only()) {
VerifyUpdateClosure verify_update(cm, sp);
bitmap->iterate(&verify_update, beg_addr, end_addr);
return;
}
if (cm->should_reset_only()) {
ResetObjectsClosure reset_objects(cm);
bitmap->iterate(&reset_objects, beg_addr, end_addr);
return;
}
#endif
const size_t beg_region = sd.addr_to_region_idx(beg_addr);
const size_t dp_region = sd.addr_to_region_idx(dp_addr);
@ -3502,35 +3489,6 @@ UpdateOnlyClosure::do_addr(HeapWord* addr, size_t words) {
return ParMarkBitMap::incomplete;
}
// Verify the new location using the forwarding pointer
// from MarkSweep::mark_sweep_phase2(). Set the mark_word
// to the initial value.
ParMarkBitMapClosure::IterationStatus
PSParallelCompact::VerifyUpdateClosure::do_addr(HeapWord* addr, size_t words) {
// The second arg (words) is not used.
oop obj = (oop) addr;
HeapWord* forwarding_ptr = (HeapWord*) obj->mark()->decode_pointer();
HeapWord* new_pointer = summary_data().calc_new_pointer(obj);
if (forwarding_ptr == NULL) {
// The object is dead or not moving.
assert(bitmap()->is_unmarked(obj) || (new_pointer == (HeapWord*) obj),
"Object liveness is wrong.");
return ParMarkBitMap::incomplete;
}
assert(HeapMaximumCompactionInterval > 1 || MarkSweepAlwaysCompactCount > 1 ||
forwarding_ptr == new_pointer, "new location is incorrect");
return ParMarkBitMap::incomplete;
}
// Reset objects modified for debug checking.
ParMarkBitMapClosure::IterationStatus
PSParallelCompact::ResetObjectsClosure::do_addr(HeapWord* addr, size_t words) {
// The second arg (words) is not used.
oop obj = (oop) addr;
obj->init_mark();
return ParMarkBitMap::incomplete;
}
// Prepare for compaction. This method is executed once
// (i.e., by a single thread) before compaction.
// Save the updated location of the intArrayKlassObj for