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8345217: Parallel: Refactor PSParallelCompact::next_src_region

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Reviewed-by: tschatzl, sjohanss, zgu
This commit is contained in:
Albert Mingkun Yang 2024-12-10 08:28:36 +00:00
parent 7d3a4049d5
commit 7e73c436ef
1 changed files with 3 additions and 10 deletions
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13
src/hotspot/share/gc/parallel/psParallelCompact.cpp
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@ -2137,13 +2137,9 @@ size_t PSParallelCompact::next_src_region(MoveAndUpdateClosure& closure,
}
if (src_region_ptr < top_region_ptr) {
// The next source region is in the current space. Update src_region_idx
// and the source address to match src_region_ptr.
// Found the first non-empty region in the same space.
src_region_idx = sd.region(src_region_ptr);
HeapWord* const src_region_addr = sd.region_to_addr(src_region_idx);
if (src_region_addr > closure.source()) {
closure.set_source(src_region_addr);
}
closure.set_source(sd.region_to_addr(src_region_idx));
return src_region_idx;
}
@ -2167,13 +2163,10 @@ size_t PSParallelCompact::next_src_region(MoveAndUpdateClosure& closure,
RegionData* cur = sd.region(cur_region);
if (cur->live_obj_size() > 0) {
HeapWord* region_start_addr = sd.region_to_addr(cur_region);
HeapWord* region_end_addr = region_start_addr + ParallelCompactData::RegionSize;
HeapWord* first_live_word = mark_bitmap()->find_obj_beg(region_start_addr, region_end_addr);
assert(first_live_word < region_end_addr, "inv");
src_space_id = SpaceId(space_id);
src_space_top = top;
closure.set_source(first_live_word);
closure.set_source(region_start_addr);
return cur_region;
}
}