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8012687: Remove unused is_root checks and closures

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Reviewed-by: tschatzl, jmasa
This commit is contained in:
Stefan Karlsson 2013-04-22 20:27:36 +02:00
parent dcedbaa149
commit bdf829cf3e
15 changed files with 59 additions and 103 deletions
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40
hotspot/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp
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@ -787,12 +787,11 @@ bool PSParallelCompact::IsAliveClosure::do_object_b(oop p) { return mark_bitmap(
void PSParallelCompact::KeepAliveClosure::do_oop(oop* p) { PSParallelCompact::KeepAliveClosure::do_oop_work(p); }
void PSParallelCompact::KeepAliveClosure::do_oop(narrowOop* p) { PSParallelCompact::KeepAliveClosure::do_oop_work(p); }
PSParallelCompact::AdjustPointerClosure PSParallelCompact::_adjust_root_pointer_closure(true);
PSParallelCompact::AdjustPointerClosure PSParallelCompact::_adjust_pointer_closure(false);
PSParallelCompact::AdjustPointerClosure PSParallelCompact::_adjust_pointer_closure;
PSParallelCompact::AdjustKlassClosure PSParallelCompact::_adjust_klass_closure;
void PSParallelCompact::AdjustPointerClosure::do_oop(oop* p) { adjust_pointer(p, _is_root); }
void PSParallelCompact::AdjustPointerClosure::do_oop(narrowOop* p) { adjust_pointer(p, _is_root); }
void PSParallelCompact::AdjustPointerClosure::do_oop(oop* p) { adjust_pointer(p); }
void PSParallelCompact::AdjustPointerClosure::do_oop(narrowOop* p) { adjust_pointer(p); }
void PSParallelCompact::FollowStackClosure::do_void() { _compaction_manager->follow_marking_stacks(); }
@ -805,7 +804,7 @@ void PSParallelCompact::FollowKlassClosure::do_klass(Klass* klass) {
klass->oops_do(_mark_and_push_closure);
}
void PSParallelCompact::AdjustKlassClosure::do_klass(Klass* klass) {
klass->oops_do(&PSParallelCompact::_adjust_root_pointer_closure);
klass->oops_do(&PSParallelCompact::_adjust_pointer_closure);
}
void PSParallelCompact::post_initialize() {
@ -2398,7 +2397,7 @@ void PSParallelCompact::follow_class_loader(ParCompactionManager* cm,
void PSParallelCompact::adjust_class_loader(ParCompactionManager* cm,
ClassLoaderData* cld) {
cld->oops_do(PSParallelCompact::adjust_root_pointer_closure(),
cld->oops_do(PSParallelCompact::adjust_pointer_closure(),
PSParallelCompact::adjust_klass_closure(),
true);
}
@ -2419,32 +2418,31 @@ void PSParallelCompact::adjust_roots() {
ClassLoaderDataGraph::clear_claimed_marks();
// General strong roots.
Universe::oops_do(adjust_root_pointer_closure());
JNIHandles::oops_do(adjust_root_pointer_closure()); // Global (strong) JNI handles
CLDToOopClosure adjust_from_cld(adjust_root_pointer_closure());
Threads::oops_do(adjust_root_pointer_closure(), &adjust_from_cld, NULL);
ObjectSynchronizer::oops_do(adjust_root_pointer_closure());
FlatProfiler::oops_do(adjust_root_pointer_closure());
Management::oops_do(adjust_root_pointer_closure());
JvmtiExport::oops_do(adjust_root_pointer_closure());
Universe::oops_do(adjust_pointer_closure());
JNIHandles::oops_do(adjust_pointer_closure()); // Global (strong) JNI handles
CLDToOopClosure adjust_from_cld(adjust_pointer_closure());
Threads::oops_do(adjust_pointer_closure(), &adjust_from_cld, NULL);
ObjectSynchronizer::oops_do(adjust_pointer_closure());
FlatProfiler::oops_do(adjust_pointer_closure());
Management::oops_do(adjust_pointer_closure());
JvmtiExport::oops_do(adjust_pointer_closure());
// SO_AllClasses
SystemDictionary::oops_do(adjust_root_pointer_closure());
ClassLoaderDataGraph::oops_do(adjust_root_pointer_closure(), adjust_klass_closure(), true);
SystemDictionary::oops_do(adjust_pointer_closure());
ClassLoaderDataGraph::oops_do(adjust_pointer_closure(), adjust_klass_closure(), true);
// Now adjust pointers in remaining weak roots. (All of which should
// have been cleared if they pointed to non-surviving objects.)
// Global (weak) JNI handles
JNIHandles::weak_oops_do(&always_true, adjust_root_pointer_closure());
JNIHandles::weak_oops_do(&always_true, adjust_pointer_closure());
CodeCache::oops_do(adjust_pointer_closure());
StringTable::oops_do(adjust_root_pointer_closure());
ref_processor()->weak_oops_do(adjust_root_pointer_closure());
StringTable::oops_do(adjust_pointer_closure());
ref_processor()->weak_oops_do(adjust_pointer_closure());
// Roots were visited so references into the young gen in roots
// may have been scanned. Process them also.
// Should the reference processor have a span that excludes
// young gen objects?
PSScavenge::reference_processor()->weak_oops_do(
adjust_root_pointer_closure());
PSScavenge::reference_processor()->weak_oops_do(adjust_pointer_closure());
}
void PSParallelCompact::enqueue_region_draining_tasks(GCTaskQueue* q,