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src/hotspot/share/gc/shenandoah/shenandoahBarrierSet.hpp
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rev 52371 : [mq]: lvb.patch
*** 23,150 ****
#ifndef SHARE_VM_GC_SHENANDOAH_SHENANDOAHBARRIERSET_HPP
#define SHARE_VM_GC_SHENANDOAH_SHENANDOAHBARRIERSET_HPP
#include "gc/shared/accessBarrierSupport.hpp"
! #include "gc/shared/barrierSet.hpp"
! #include "gc/shenandoah/shenandoahHeap.hpp"
! #include "gc/shenandoah/shenandoahSATBMarkQueueSet.hpp"
!
! class ShenandoahBarrierSetAssembler;
!
! class ShenandoahBarrierSet: public BarrierSet {
! private:
!
! enum ArrayCopyStoreValMode {
! NONE,
! READ_BARRIER,
! WRITE_BARRIER
! };
! ShenandoahHeap* _heap;
! ShenandoahSATBMarkQueueSet _satb_mark_queue_set;
public:
ShenandoahBarrierSet(ShenandoahHeap* heap);
- static ShenandoahBarrierSetAssembler* assembler();
-
- inline static ShenandoahBarrierSet* barrier_set() {
- return barrier_set_cast<ShenandoahBarrierSet>(BarrierSet::barrier_set());
- }
-
- static ShenandoahSATBMarkQueueSet& satb_mark_queue_set() {
- return barrier_set()->_satb_mark_queue_set;
- }
-
void print_on(outputStream* st) const;
bool is_a(BarrierSet::Name bsn);
- bool is_aligned(HeapWord* hw);
- void resize_covered_region(MemRegion mr);
-
- void write_ref_array(HeapWord* start, size_t count);
- void write_ref_array_work(MemRegion r);
-
- template <class T> void
- write_ref_array_pre_work(T* dst, size_t count);
-
- void write_ref_array_pre(oop* dst, size_t count, bool dest_uninitialized);
-
- void write_ref_array_pre(narrowOop* dst, size_t count, bool dest_uninitialized);
-
-
// We export this to make it available in cases where the static
// type of the barrier set is known. Note that it is non-virtual.
template <class T> inline void inline_write_ref_field_pre(T* field, oop new_val);
// These are the more general virtual versions.
void write_ref_field_pre_work(oop* field, oop new_val);
void write_ref_field_pre_work(narrowOop* field, oop new_val);
void write_ref_field_pre_work(void* field, oop new_val);
void write_ref_field_work(void* v, oop o, bool release = false);
- void write_region(MemRegion mr);
-
- virtual void on_thread_create(Thread* thread);
- virtual void on_thread_destroy(Thread* thread);
- virtual void on_thread_attach(JavaThread* thread);
- virtual void on_thread_detach(JavaThread* thread);
-
- virtual oop read_barrier(oop src);
-
- static inline oop resolve_forwarded_not_null(oop p);
- static inline oop resolve_forwarded(oop p);
-
- virtual oop write_barrier(oop obj);
-
- oop write_barrier_mutator(oop obj);
-
- virtual oop storeval_barrier(oop obj);
-
- virtual void keep_alive_barrier(oop obj);
-
- bool obj_equals(oop obj1, oop obj2);
-
- void enqueue(oop obj);
-
- private:
- inline bool need_update_refs_barrier();
-
- template <class T, bool STOREVAL_WRITE_BARRIER>
- void write_ref_array_loop(HeapWord* start, size_t count);
-
- oop write_barrier_impl(oop obj);
-
- static void keep_alive_if_weak(DecoratorSet decorators, oop value) {
- assert((decorators & ON_UNKNOWN_OOP_REF) == 0, "Reference strength must be known");
- const bool on_strong_oop_ref = (decorators & ON_STRONG_OOP_REF) != 0;
- const bool peek = (decorators & AS_NO_KEEPALIVE) != 0;
- if (!peek && !on_strong_oop_ref && value != NULL) {
- ShenandoahBarrierSet::barrier_set()->keep_alive_barrier(value);
- }
- }
-
- template <typename T>
- bool arraycopy_loop_1(T* src, T* dst, size_t length, Klass* bound,
- bool checkcast, bool satb, ShenandoahBarrierSet::ArrayCopyStoreValMode storeval_mode);
-
- template <typename T, bool CHECKCAST>
- bool arraycopy_loop_2(T* src, T* dst, size_t length, Klass* bound,
- bool satb, ShenandoahBarrierSet::ArrayCopyStoreValMode storeval_mode);
-
- template <typename T, bool CHECKCAST, bool SATB>
- bool arraycopy_loop_3(T* src, T* dst, size_t length, Klass* bound,
- ShenandoahBarrierSet::ArrayCopyStoreValMode storeval_mode);
-
- template <typename T, bool CHECKCAST, bool SATB, ShenandoahBarrierSet::ArrayCopyStoreValMode STOREVAL_MODE>
- bool arraycopy_loop(T* src, T* dst, size_t length, Klass* bound);
-
- template <typename T, bool CHECKCAST, bool SATB, ShenandoahBarrierSet::ArrayCopyStoreValMode STOREVAL_MODE>
- bool arraycopy_element(T* cur_src, T* cur_dst, Klass* bound, Thread* thread);
public:
// Callbacks for runtime accesses.
template <DecoratorSet decorators, typename BarrierSetT = ShenandoahBarrierSet>
class AccessBarrier: public BarrierSet::AccessBarrier<decorators, BarrierSetT> {
--- 23,54 ----
#ifndef SHARE_VM_GC_SHENANDOAH_SHENANDOAHBARRIERSET_HPP
#define SHARE_VM_GC_SHENANDOAH_SHENANDOAHBARRIERSET_HPP
#include "gc/shared/accessBarrierSupport.hpp"
! #include "gc/shenandoah/shenandoahBaseBarrierSet.hpp"
! class ShenandoahBarrierSet: public ShenandoahBaseBarrierSet {
public:
ShenandoahBarrierSet(ShenandoahHeap* heap);
void print_on(outputStream* st) const;
bool is_a(BarrierSet::Name bsn);
// We export this to make it available in cases where the static
// type of the barrier set is known. Note that it is non-virtual.
template <class T> inline void inline_write_ref_field_pre(T* field, oop new_val);
// These are the more general virtual versions.
void write_ref_field_pre_work(oop* field, oop new_val);
void write_ref_field_pre_work(narrowOop* field, oop new_val);
void write_ref_field_pre_work(void* field, oop new_val);
void write_ref_field_work(void* v, oop o, bool release = false);
public:
// Callbacks for runtime accesses.
template <DecoratorSet decorators, typename BarrierSetT = ShenandoahBarrierSet>
class AccessBarrier: public BarrierSet::AccessBarrier<decorators, BarrierSetT> {
*** 160,170 ****
return Raw::template load<T>(addr);
}
template <typename T>
static T load_in_heap_at(oop base, ptrdiff_t offset) {
! base = ShenandoahBarrierSet::resolve_forwarded(base);
return Raw::template load_at<T>(base, offset);
}
template <typename T>
static void store_in_heap(T* addr, T value) {
--- 64,74 ----
return Raw::template load<T>(addr);
}
template <typename T>
static T load_in_heap_at(oop base, ptrdiff_t offset) {
! base = ShenandoahBaseBarrierSet::resolve_forwarded(base);
return Raw::template load_at<T>(base, offset);
}
template <typename T>
static void store_in_heap(T* addr, T value) {
*** 172,182 ****
Raw::store(addr, value);
}
template <typename T>
static void store_in_heap_at(oop base, ptrdiff_t offset, T value) {
! base = ShenandoahBarrierSet::barrier_set()->write_barrier(base);
Raw::store_at(base, offset, value);
}
template <typename T>
static T atomic_cmpxchg_in_heap(T new_value, T* addr, T compare_value) {
--- 76,86 ----
Raw::store(addr, value);
}
template <typename T>
static void store_in_heap_at(oop base, ptrdiff_t offset, T value) {
! base = ShenandoahBaseBarrierSet::barrier_set()->write_barrier(base);
Raw::store_at(base, offset, value);
}
template <typename T>
static T atomic_cmpxchg_in_heap(T new_value, T* addr, T compare_value) {
*** 184,194 ****
return Raw::atomic_cmpxchg(new_value, addr, compare_value);
}
template <typename T>
static T atomic_cmpxchg_in_heap_at(T new_value, oop base, ptrdiff_t offset, T compare_value) {
! base = ShenandoahBarrierSet::barrier_set()->write_barrier(base);
return Raw::atomic_cmpxchg_at(new_value, base, offset, compare_value);
}
template <typename T>
static T atomic_xchg_in_heap(T new_value, T* addr) {
--- 88,98 ----
return Raw::atomic_cmpxchg(new_value, addr, compare_value);
}
template <typename T>
static T atomic_cmpxchg_in_heap_at(T new_value, oop base, ptrdiff_t offset, T compare_value) {
! base = ShenandoahBaseBarrierSet::barrier_set()->write_barrier(base);
return Raw::atomic_cmpxchg_at(new_value, base, offset, compare_value);
}
template <typename T>
static T atomic_xchg_in_heap(T new_value, T* addr) {
*** 196,206 ****
return Raw::atomic_xchg(new_value, addr);
}
template <typename T>
static T atomic_xchg_in_heap_at(T new_value, oop base, ptrdiff_t offset) {
! base = ShenandoahBarrierSet::barrier_set()->write_barrier(base);
return Raw::atomic_xchg_at(new_value, base, offset);
}
template <typename T>
static void arraycopy_in_heap(arrayOop src_obj, size_t src_offset_in_bytes, T* src_raw,
--- 100,110 ----
return Raw::atomic_xchg(new_value, addr);
}
template <typename T>
static T atomic_xchg_in_heap_at(T new_value, oop base, ptrdiff_t offset) {
! base = ShenandoahBaseBarrierSet::barrier_set()->write_barrier(base);
return Raw::atomic_xchg_at(new_value, base, offset);
}
template <typename T>
static void arraycopy_in_heap(arrayOop src_obj, size_t src_offset_in_bytes, T* src_raw,
*** 217,260 ****
keep_alive_if_weak(decorators, value);
return value;
}
static oop oop_load_in_heap_at(oop base, ptrdiff_t offset) {
! base = ShenandoahBarrierSet::resolve_forwarded(base);
oop value = Raw::template oop_load_at<oop>(base, offset);
keep_alive_if_weak(AccessBarrierSupport::resolve_possibly_unknown_oop_ref_strength<decorators>(base, offset), value);
return value;
}
template <typename T>
static void oop_store_in_heap(T* addr, oop value) {
! ShenandoahBarrierSet::barrier_set()->write_ref_field_pre_work(addr, value);
Raw::oop_store(addr, value);
}
static void oop_store_in_heap_at(oop base, ptrdiff_t offset, oop value) {
! base = ShenandoahBarrierSet::barrier_set()->write_barrier(base);
! value = ShenandoahBarrierSet::barrier_set()->storeval_barrier(value);
oop_store_in_heap(AccessInternal::oop_field_addr<decorators>(base, offset), value);
}
template <typename T>
static oop oop_atomic_cmpxchg_in_heap(oop new_value, T* addr, oop compare_value);
static oop oop_atomic_cmpxchg_in_heap_at(oop new_value, oop base, ptrdiff_t offset, oop compare_value) {
! base = ShenandoahBarrierSet::barrier_set()->write_barrier(base);
! new_value = ShenandoahBarrierSet::barrier_set()->storeval_barrier(new_value);
return oop_atomic_cmpxchg_in_heap(new_value, AccessInternal::oop_field_addr<decorators>(base, offset), compare_value);
}
template <typename T>
static oop oop_atomic_xchg_in_heap(oop new_value, T* addr);
static oop oop_atomic_xchg_in_heap_at(oop new_value, oop base, ptrdiff_t offset) {
! base = ShenandoahBarrierSet::barrier_set()->write_barrier(base);
! new_value = ShenandoahBarrierSet::barrier_set()->storeval_barrier(new_value);
return oop_atomic_xchg_in_heap(new_value, AccessInternal::oop_field_addr<decorators>(base, offset));
}
template <typename T>
static bool oop_arraycopy_in_heap(arrayOop src_obj, size_t src_offset_in_bytes, T* src_raw,
--- 121,164 ----
keep_alive_if_weak(decorators, value);
return value;
}
static oop oop_load_in_heap_at(oop base, ptrdiff_t offset) {
! base = ShenandoahBaseBarrierSet::resolve_forwarded(base);
oop value = Raw::template oop_load_at<oop>(base, offset);
keep_alive_if_weak(AccessBarrierSupport::resolve_possibly_unknown_oop_ref_strength<decorators>(base, offset), value);
return value;
}
template <typename T>
static void oop_store_in_heap(T* addr, oop value) {
! ShenandoahBaseBarrierSet::barrier_set()->write_ref_field_pre_work(addr, value);
Raw::oop_store(addr, value);
}
static void oop_store_in_heap_at(oop base, ptrdiff_t offset, oop value) {
! base = ShenandoahBaseBarrierSet::barrier_set()->write_barrier(base);
! value = ShenandoahBaseBarrierSet::barrier_set()->storeval_barrier(value);
oop_store_in_heap(AccessInternal::oop_field_addr<decorators>(base, offset), value);
}
template <typename T>
static oop oop_atomic_cmpxchg_in_heap(oop new_value, T* addr, oop compare_value);
static oop oop_atomic_cmpxchg_in_heap_at(oop new_value, oop base, ptrdiff_t offset, oop compare_value) {
! base = ShenandoahBaseBarrierSet::barrier_set()->write_barrier(base);
! new_value = ShenandoahBaseBarrierSet::barrier_set()->storeval_barrier(new_value);
return oop_atomic_cmpxchg_in_heap(new_value, AccessInternal::oop_field_addr<decorators>(base, offset), compare_value);
}
template <typename T>
static oop oop_atomic_xchg_in_heap(oop new_value, T* addr);
static oop oop_atomic_xchg_in_heap_at(oop new_value, oop base, ptrdiff_t offset) {
! base = ShenandoahBaseBarrierSet::barrier_set()->write_barrier(base);
! new_value = ShenandoahBaseBarrierSet::barrier_set()->storeval_barrier(new_value);
return oop_atomic_xchg_in_heap(new_value, AccessInternal::oop_field_addr<decorators>(base, offset));
}
template <typename T>
static bool oop_arraycopy_in_heap(arrayOop src_obj, size_t src_offset_in_bytes, T* src_raw,
*** 271,285 ****
keep_alive_if_weak(decorators, value);
return value;
}
static oop resolve(oop obj) {
! return ShenandoahBarrierSet::barrier_set()->write_barrier(obj);
}
static bool equals(oop o1, oop o2) {
! return ShenandoahBarrierSet::barrier_set()->obj_equals(o1, o2);
}
};
};
--- 175,189 ----
keep_alive_if_weak(decorators, value);
return value;
}
static oop resolve(oop obj) {
! return ShenandoahBaseBarrierSet::barrier_set()->write_barrier(obj);
}
static bool equals(oop o1, oop o2) {
! return ShenandoahBaseBarrierSet::barrier_set()->obj_equals(o1, o2);
}
};
};
*** 289,297 ****
static const BarrierSet::Name value = BarrierSet::Shenandoah;
};
template<>
struct BarrierSet::GetType<BarrierSet::Shenandoah> {
! typedef ShenandoahBarrierSet type;
};
#endif //SHARE_VM_GC_SHENANDOAH_SHENANDOAHBARRIERSET_HPP
--- 193,201 ----
static const BarrierSet::Name value = BarrierSet::Shenandoah;
};
template<>
struct BarrierSet::GetType<BarrierSet::Shenandoah> {
! typedef ::ShenandoahBarrierSet type;
};
#endif //SHARE_VM_GC_SHENANDOAH_SHENANDOAHBARRIERSET_HPP
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