1.1 --- a/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp Wed Oct 07 19:01:55 2009 -0400
1.2 +++ b/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp Fri Oct 16 02:05:46 2009 -0700
1.3 @@ -314,41 +314,6 @@
1.4 return false;
1.5 }
1.6
1.7 -// Static method
1.8 -bool ParallelScavengeHeap::is_in_young(oop* p) {
1.9 - ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
1.10 - assert(heap->kind() == CollectedHeap::ParallelScavengeHeap,
1.11 - "Must be ParallelScavengeHeap");
1.12 -
1.13 - PSYoungGen* young_gen = heap->young_gen();
1.14 -
1.15 - if (young_gen->is_in_reserved(p)) {
1.16 - return true;
1.17 - }
1.18 -
1.19 - return false;
1.20 -}
1.21 -
1.22 -// Static method
1.23 -bool ParallelScavengeHeap::is_in_old_or_perm(oop* p) {
1.24 - ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
1.25 - assert(heap->kind() == CollectedHeap::ParallelScavengeHeap,
1.26 - "Must be ParallelScavengeHeap");
1.27 -
1.28 - PSOldGen* old_gen = heap->old_gen();
1.29 - PSPermGen* perm_gen = heap->perm_gen();
1.30 -
1.31 - if (old_gen->is_in_reserved(p)) {
1.32 - return true;
1.33 - }
1.34 -
1.35 - if (perm_gen->is_in_reserved(p)) {
1.36 - return true;
1.37 - }
1.38 -
1.39 - return false;
1.40 -}
1.41 -
1.42 // There are two levels of allocation policy here.
1.43 //
1.44 // When an allocation request fails, the requesting thread must invoke a VM
1.45 @@ -764,6 +729,13 @@
1.46 CollectedHeap::resize_all_tlabs();
1.47 }
1.48
1.49 +bool ParallelScavengeHeap::can_elide_initializing_store_barrier(oop new_obj) {
1.50 + // We don't need barriers for stores to objects in the
1.51 + // young gen and, a fortiori, for initializing stores to
1.52 + // objects therein.
1.53 + return is_in_young(new_obj);
1.54 +}
1.55 +
1.56 // This method is used by System.gc() and JVMTI.
1.57 void ParallelScavengeHeap::collect(GCCause::Cause cause) {
1.58 assert(!Heap_lock->owned_by_self(),
