Mercurial > hg > graal-jvmci-8
comparison src/share/vm/gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.cpp @ 20264:30c99d8e0f02
8038399: Remove dead oop_iterate MemRegion variants from SharedHeap, Generation and Space classes
Reviewed-by: tschatzl, stefank
| author | mgerdin |
|---|---|
| date | Thu, 06 Mar 2014 09:08:18 +0100 |
| parents | c49dcaf78a65 |
| children | 5255b195f828 |
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| 20263:4dfab3faf5e7 | 20264:30c99d8e0f02 |
|---|---|
| 789 for (cur = bottom(), limit = end(); cur < limit; | 789 for (cur = bottom(), limit = end(); cur < limit; |
| 790 cur += curSize) { | 790 cur += curSize) { |
| 791 curSize = block_size(cur); | 791 curSize = block_size(cur); |
| 792 if (block_is_obj(cur)) { | 792 if (block_is_obj(cur)) { |
| 793 oop(cur)->oop_iterate(cl); | 793 oop(cur)->oop_iterate(cl); |
| 794 } | |
| 795 } | |
| 796 } | |
| 797 | |
| 798 // Apply the given closure to each oop in the space \intersect memory region. | |
| 799 void CompactibleFreeListSpace::oop_iterate(MemRegion mr, ExtendedOopClosure* cl) { | |
| 800 assert_lock_strong(freelistLock()); | |
| 801 if (is_empty()) { | |
| 802 return; | |
| 803 } | |
| 804 MemRegion cur = MemRegion(bottom(), end()); | |
| 805 mr = mr.intersection(cur); | |
| 806 if (mr.is_empty()) { | |
| 807 return; | |
| 808 } | |
| 809 if (mr.equals(cur)) { | |
| 810 oop_iterate(cl); | |
| 811 return; | |
| 812 } | |
| 813 assert(mr.end() <= end(), "just took an intersection above"); | |
| 814 HeapWord* obj_addr = block_start(mr.start()); | |
| 815 HeapWord* t = mr.end(); | |
| 816 | |
| 817 SpaceMemRegionOopsIterClosure smr_blk(cl, mr); | |
| 818 if (block_is_obj(obj_addr)) { | |
| 819 // Handle first object specially. | |
| 820 oop obj = oop(obj_addr); | |
| 821 obj_addr += adjustObjectSize(obj->oop_iterate(&smr_blk)); | |
| 822 } else { | |
| 823 FreeChunk* fc = (FreeChunk*)obj_addr; | |
| 824 obj_addr += fc->size(); | |
| 825 } | |
| 826 while (obj_addr < t) { | |
| 827 HeapWord* obj = obj_addr; | |
| 828 obj_addr += block_size(obj_addr); | |
| 829 // If "obj_addr" is not greater than top, then the | |
| 830 // entire object "obj" is within the region. | |
| 831 if (obj_addr <= t) { | |
| 832 if (block_is_obj(obj)) { | |
| 833 oop(obj)->oop_iterate(cl); | |
| 834 } | |
| 835 } else { | |
| 836 // "obj" extends beyond end of region | |
| 837 if (block_is_obj(obj)) { | |
| 838 oop(obj)->oop_iterate(&smr_blk); | |
| 839 } | |
| 840 break; | |
| 841 } | 794 } |
| 842 } | 795 } |
| 843 } | 796 } |
| 844 | 797 |
| 845 // NOTE: In the following methods, in order to safely be able to | 798 // NOTE: In the following methods, in order to safely be able to |