Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/gc_implementation/g1/heapRegion.inline.hpp
src/share/vm/gc_implementation/g1/heapRegion.inline.hpp
- changeset 6992
- 2c6ef90f030a
- parent 6990
- 1526a938e670
- child 6996
- f3aeae1f9fc5
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| 6991:882004b9e7e1 | 6992:2c6ef90f030a |
|---|---|
| 91 return _offsets.block_start_const(p); | 91 return _offsets.block_start_const(p); |
| 92 } | 92 } |
| 93 | 93 |
| 94 inline bool | 94 inline bool |
| 95 HeapRegion::block_is_obj(const HeapWord* p) const { | 95 HeapRegion::block_is_obj(const HeapWord* p) const { |
| 96 return p < top(); | 96 G1CollectedHeap* g1h = G1CollectedHeap::heap(); |
| 97 return !g1h->is_obj_dead(oop(p), this); | |
| 97 } | 98 } |
| 98 | 99 |
| 99 inline size_t | 100 inline size_t |
| 100 HeapRegion::block_size(const HeapWord *addr) const { | 101 HeapRegion::block_size(const HeapWord *addr) const { |
| 101 const HeapWord* current_top = top(); | 102 // Old regions' dead objects may have dead classes |
| 102 if (addr < current_top) { | 103 // We need to find the next live object in some other |
| 103 return oop(addr)->size(); | 104 // manner than getting the oop size |
| 104 } else { | 105 G1CollectedHeap* g1h = G1CollectedHeap::heap(); |
| 105 assert(addr == current_top, "just checking"); | 106 if (g1h->is_obj_dead(oop(addr), this)) { |
| 107 HeapWord* next = g1h->concurrent_mark()->prevMarkBitMap()-> | |
| 108 getNextMarkedWordAddress(addr, prev_top_at_mark_start()); | |
| 109 | |
| 110 assert(next > addr, "must get the next live object"); | |
| 111 | |
| 112 return pointer_delta(next, addr); | |
| 113 } else if (addr == top()) { | |
| 106 return pointer_delta(end(), addr); | 114 return pointer_delta(end(), addr); |
| 107 } | 115 } |
| 116 return oop(addr)->size(); | |
| 108 } | 117 } |
| 109 | 118 |
| 110 inline HeapWord* HeapRegion::par_allocate_no_bot_updates(size_t word_size) { | 119 inline HeapWord* HeapRegion::par_allocate_no_bot_updates(size_t word_size) { |
| 111 assert(is_young(), "we can only skip BOT updates on young regions"); | 120 assert(is_young(), "we can only skip BOT updates on young regions"); |
| 112 return par_allocate_impl(word_size, end()); | 121 return par_allocate_impl(word_size, end()); |
