95 HeapRegion::block_is_obj(const HeapWord* p) const {
96 G1CollectedHeap* g1h = G1CollectedHeap::heap();
97 if (ClassUnloadingWithConcurrentMark) {
98 return !g1h->is_obj_dead(oop(p), this);
99 }
100 return p < top();
101 }
102
103 inline size_t
104 HeapRegion::block_size(const HeapWord *addr) const {
105 if (addr == top()) {
106 return pointer_delta(end(), addr);
107 }
108
109 if (block_is_obj(addr)) {
110 return oop(addr)->size();
111 }
112
113 assert(ClassUnloadingWithConcurrentMark,
114 err_msg("All blocks should be objects if G1 Class Unloading isn't used. "
115 "HR: ["PTR_FORMAT", "PTR_FORMAT", "PTR_FORMAT") "
116 "addr: " PTR_FORMAT,
117 p2i(bottom()), p2i(top()), p2i(end()), p2i(addr)));
118
119 // Old regions' dead objects may have dead classes
120 // We need to find the next live object in some other
121 // manner than getting the oop size
122 G1CollectedHeap* g1h = G1CollectedHeap::heap();
123 HeapWord* next = g1h->concurrent_mark()->prevMarkBitMap()->
124 getNextMarkedWordAddress(addr, prev_top_at_mark_start());
125
126 assert(next > addr, "must get the next live object");
127 return pointer_delta(next, addr);
128 }
129
130 inline HeapWord* HeapRegion::par_allocate_no_bot_updates(size_t word_size) {
131 assert(is_young(), "we can only skip BOT updates on young regions");
132 return par_allocate_impl(word_size, end());
133 }
134
135 inline HeapWord* HeapRegion::allocate_no_bot_updates(size_t word_size) {
|
95 HeapRegion::block_is_obj(const HeapWord* p) const {
96 G1CollectedHeap* g1h = G1CollectedHeap::heap();
97 if (ClassUnloadingWithConcurrentMark) {
98 return !g1h->is_obj_dead(oop(p), this);
99 }
100 return p < top();
101 }
102
103 inline size_t
104 HeapRegion::block_size(const HeapWord *addr) const {
105 if (addr == top()) {
106 return pointer_delta(end(), addr);
107 }
108
109 if (block_is_obj(addr)) {
110 return oop(addr)->size();
111 }
112
113 assert(ClassUnloadingWithConcurrentMark,
114 err_msg("All blocks should be objects if G1 Class Unloading isn't used. "
115 "HR: [" PTR_FORMAT ", " PTR_FORMAT ", " PTR_FORMAT ") "
116 "addr: " PTR_FORMAT,
117 p2i(bottom()), p2i(top()), p2i(end()), p2i(addr)));
118
119 // Old regions' dead objects may have dead classes
120 // We need to find the next live object in some other
121 // manner than getting the oop size
122 G1CollectedHeap* g1h = G1CollectedHeap::heap();
123 HeapWord* next = g1h->concurrent_mark()->prevMarkBitMap()->
124 getNextMarkedWordAddress(addr, prev_top_at_mark_start());
125
126 assert(next > addr, "must get the next live object");
127 return pointer_delta(next, addr);
128 }
129
130 inline HeapWord* HeapRegion::par_allocate_no_bot_updates(size_t word_size) {
131 assert(is_young(), "we can only skip BOT updates on young regions");
132 return par_allocate_impl(word_size, end());
133 }
134
135 inline HeapWord* HeapRegion::allocate_no_bot_updates(size_t word_size) {
|