Mercurial > hg > graal-compiler
comparison src/share/vm/gc_implementation/g1/heapRegionSeq.cpp @ 960:eb058abd0562
6861557: G1: assert(top() == bottom() || zfs == Allocated,"Region must be empty, or ...")
Summary: Druing heap shrinking, check for emptiness of a region before modifying its ZF status.
Reviewed-by: tonyp
| author | ysr |
|---|---|
| date | Tue, 15 Sep 2009 16:50:50 -0700 |
| parents | 96b229c54d1e |
| children | c18cbe5936b8 |
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| 945:68ef3fdcdb76 | 960:eb058abd0562 |
|---|---|
| 300 // We have to leave humongous regions where they are, | 300 // We have to leave humongous regions where they are, |
| 301 // and work around them. | 301 // and work around them. |
| 302 if (cur->isHumongous()) { | 302 if (cur->isHumongous()) { |
| 303 return MemRegion(last_start, end); | 303 return MemRegion(last_start, end); |
| 304 } | 304 } |
| 305 cur->reset_zero_fill(); | |
| 306 assert(cur == _regions.top(), "Should be top"); | 305 assert(cur == _regions.top(), "Should be top"); |
| 307 if (!cur->is_empty()) break; | 306 if (!cur->is_empty()) break; |
| 307 cur->reset_zero_fill(); | |
| 308 shrink_bytes -= cur->capacity(); | 308 shrink_bytes -= cur->capacity(); |
| 309 num_regions_deleted++; | 309 num_regions_deleted++; |
| 310 _regions.pop(); | 310 _regions.pop(); |
| 311 last_start = cur->bottom(); | 311 last_start = cur->bottom(); |
| 312 // We need to delete these somehow, but can't currently do so here: if | 312 // We need to delete these somehow, but can't currently do so here: if |