Mercurial > hg > graal-jvmci-8
comparison src/share/vm/memory/cardTableModRefBS.hpp @ 12343:d55c004e1d4d
8025305: Cleanup CardTableModRefBS usage in G1
Summary: Move some G1 specific code from CardTableModRefBS to G1SATBCardTableModRefBS.
Reviewed-by: brutisso, tschatzl, ehelin
| author | mgerdin |
|---|---|
| date | Tue, 24 Sep 2013 14:46:29 +0200 |
| parents | f9be75d21404 |
| children | cefad50507d8 3205e78d8193 |
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| 12342:ccef6e165e8b | 12343:d55c004e1d4d |
|---|---|
| 337 | 337 |
| 338 void mark_card_dirty(size_t card_index) { | 338 void mark_card_dirty(size_t card_index) { |
| 339 _byte_map[card_index] = dirty_card_val(); | 339 _byte_map[card_index] = dirty_card_val(); |
| 340 } | 340 } |
| 341 | 341 |
| 342 bool is_card_claimed(size_t card_index) { | |
| 343 jbyte val = _byte_map[card_index]; | |
| 344 return (val & (clean_card_mask_val() | claimed_card_val())) == claimed_card_val(); | |
| 345 } | |
| 346 | |
| 347 void set_card_claimed(size_t card_index) { | |
| 348 jbyte val = _byte_map[card_index]; | |
| 349 if (val == clean_card_val()) { | |
| 350 val = (jbyte)claimed_card_val(); | |
| 351 } else { | |
| 352 val |= (jbyte)claimed_card_val(); | |
| 353 } | |
| 354 _byte_map[card_index] = val; | |
| 355 } | |
| 356 | |
| 357 bool claim_card(size_t card_index); | |
| 358 | |
| 359 bool is_card_clean(size_t card_index) { | 342 bool is_card_clean(size_t card_index) { |
| 360 return _byte_map[card_index] == clean_card_val(); | 343 return _byte_map[card_index] == clean_card_val(); |
| 361 } | 344 } |
| 362 | |
| 363 bool is_card_deferred(size_t card_index) { | |
| 364 jbyte val = _byte_map[card_index]; | |
| 365 return (val & (clean_card_mask_val() | deferred_card_val())) == deferred_card_val(); | |
| 366 } | |
| 367 | |
| 368 bool mark_card_deferred(size_t card_index); | |
| 369 | 345 |
| 370 // Card marking array base (adjusted for heap low boundary) | 346 // Card marking array base (adjusted for heap low boundary) |
| 371 // This would be the 0th element of _byte_map, if the heap started at 0x0. | 347 // This would be the 0th element of _byte_map, if the heap started at 0x0. |
| 372 // But since the heap starts at some higher address, this points to somewhere | 348 // But since the heap starts at some higher address, this points to somewhere |
| 373 // before the beginning of the actual _byte_map. | 349 // before the beginning of the actual _byte_map. |