18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_OOPS_INSTANCEKLASS_INLINE_HPP
26 #define SHARE_VM_OOPS_INSTANCEKLASS_INLINE_HPP
27
28 #include "memory/iterator.hpp"
29 #include "oops/instanceKlass.hpp"
30 #include "oops/klass.hpp"
31 #include "oops/oop.inline.hpp"
32 #include "runtime/orderAccess.inline.hpp"
33 #include "utilities/debug.hpp"
34 #include "utilities/globalDefinitions.hpp"
35 #include "utilities/macros.hpp"
36
37 inline Klass* InstanceKlass::array_klasses_acquire() const {
38 return (Klass*) OrderAccess::load_ptr_acquire(&_array_klasses);
39 }
40
41 inline void InstanceKlass::release_set_array_klasses(Klass* k) {
42 OrderAccess::release_store_ptr(&_array_klasses, k);
43 }
44
45 inline jmethodID* InstanceKlass::methods_jmethod_ids_acquire() const {
46 return (jmethodID*)OrderAccess::load_ptr_acquire(&_methods_jmethod_ids);
47 }
48
49 inline void InstanceKlass::release_set_methods_jmethod_ids(jmethodID* jmeths) {
50 OrderAccess::release_store_ptr(&_methods_jmethod_ids, jmeths);
51 }
52
53 // The iteration over the oops in objects is a hot path in the GC code.
54 // By force inlining the following functions, we get similar GC performance
55 // as the previous macro based implementation.
56
57 template <bool nv, typename T, class OopClosureType>
58 ALWAYSINLINE void InstanceKlass::oop_oop_iterate_oop_map(OopMapBlock* map, oop obj, OopClosureType* closure) {
59 T* p = (T*)obj->obj_field_addr<T>(map->offset());
60 T* const end = p + map->count();
61
62 for (; p < end; ++p) {
63 Devirtualizer<nv>::do_oop(closure, p);
64 }
65 }
66
67 #if INCLUDE_ALL_GCS
68 template <bool nv, typename T, class OopClosureType>
69 ALWAYSINLINE void InstanceKlass::oop_oop_iterate_oop_map_reverse(OopMapBlock* map, oop obj, OopClosureType* closure) {
70 T* const start = (T*)obj->obj_field_addr<T>(map->offset());
|
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_OOPS_INSTANCEKLASS_INLINE_HPP
26 #define SHARE_VM_OOPS_INSTANCEKLASS_INLINE_HPP
27
28 #include "memory/iterator.hpp"
29 #include "oops/instanceKlass.hpp"
30 #include "oops/klass.hpp"
31 #include "oops/oop.inline.hpp"
32 #include "runtime/orderAccess.inline.hpp"
33 #include "utilities/debug.hpp"
34 #include "utilities/globalDefinitions.hpp"
35 #include "utilities/macros.hpp"
36
37 inline Klass* InstanceKlass::array_klasses_acquire() const {
38 return OrderAccess::load_acquire(&_array_klasses);
39 }
40
41 inline void InstanceKlass::release_set_array_klasses(Klass* k) {
42 OrderAccess::release_store(&_array_klasses, k);
43 }
44
45 inline jmethodID* InstanceKlass::methods_jmethod_ids_acquire() const {
46 return OrderAccess::load_acquire(&_methods_jmethod_ids);
47 }
48
49 inline void InstanceKlass::release_set_methods_jmethod_ids(jmethodID* jmeths) {
50 OrderAccess::release_store(&_methods_jmethod_ids, jmeths);
51 }
52
53 // The iteration over the oops in objects is a hot path in the GC code.
54 // By force inlining the following functions, we get similar GC performance
55 // as the previous macro based implementation.
56
57 template <bool nv, typename T, class OopClosureType>
58 ALWAYSINLINE void InstanceKlass::oop_oop_iterate_oop_map(OopMapBlock* map, oop obj, OopClosureType* closure) {
59 T* p = (T*)obj->obj_field_addr<T>(map->offset());
60 T* const end = p + map->count();
61
62 for (; p < end; ++p) {
63 Devirtualizer<nv>::do_oop(closure, p);
64 }
65 }
66
67 #if INCLUDE_ALL_GCS
68 template <bool nv, typename T, class OopClosureType>
69 ALWAYSINLINE void InstanceKlass::oop_oop_iterate_oop_map_reverse(OopMapBlock* map, oop obj, OopClosureType* closure) {
70 T* const start = (T*)obj->obj_field_addr<T>(map->offset());
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