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comparison src/share/vm/gc_implementation/g1/g1BlockOffsetTable.cpp @ 845:df6caf649ff7

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6700789: G1: Enable use of compressed oops with G1 heaps Summary: Modifications to G1 so as to allow the use of compressed oops. Reviewed-by: apetrusenko, coleenp, jmasa, kvn, never, phh, tonyp
author ysr
date Tue, 14 Jul 2009 15:40:39 -0700
parents ad8c8ca4ab0f
children cff162798819
comparison
equal deleted inserted replaced
839:bb18957ad21e 845:df6caf649ff7
422 if (addr >= csp()->top()) return csp()->top(); 422 if (addr >= csp()->top()) return csp()->top();
423 while (next_boundary < addr) { 423 while (next_boundary < addr) {
424 while (n <= next_boundary) { 424 while (n <= next_boundary) {
425 q = n; 425 q = n;
426 oop obj = oop(q); 426 oop obj = oop(q);
427 if (obj->klass() == NULL) return q; 427 if (obj->klass_or_null() == NULL) return q;
428 n += obj->size(); 428 n += obj->size();
429 } 429 }
430 assert(q <= next_boundary && n > next_boundary, "Consequence of loop"); 430 assert(q <= next_boundary && n > next_boundary, "Consequence of loop");
431 // [q, n) is the block that crosses the boundary. 431 // [q, n) is the block that crosses the boundary.
432 alloc_block_work2(&next_boundary, &next_index, q, n); 432 alloc_block_work2(&next_boundary, &next_index, q, n);
434 } else { 434 } else {
435 while (next_boundary < addr) { 435 while (next_boundary < addr) {
436 while (n <= next_boundary) { 436 while (n <= next_boundary) {
437 q = n; 437 q = n;
438 oop obj = oop(q); 438 oop obj = oop(q);
439 if (obj->klass() == NULL) return q; 439 if (obj->klass_or_null() == NULL) return q;
440 n += _sp->block_size(q); 440 n += _sp->block_size(q);
441 } 441 }
442 assert(q <= next_boundary && n > next_boundary, "Consequence of loop"); 442 assert(q <= next_boundary && n > next_boundary, "Consequence of loop");
443 // [q, n) is the block that crosses the boundary. 443 // [q, n) is the block that crosses the boundary.
444 alloc_block_work2(&next_boundary, &next_index, q, n); 444 alloc_block_work2(&next_boundary, &next_index, q, n);