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8300127: Serial: Remove unnecessary from-space iteration in DefNewGeneration::oop_since_save_marks_iterate

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Reviewed-by: tschatzl, ysr
This commit is contained in:
Albert Mingkun Yang 2023-01-26 10:13:51 +00:00
parent 48152ef66f
commit 3589b80838
1 changed files with 5 additions and 4 deletions
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9
src/hotspot/share/gc/serial/defNewGeneration.inline.hpp
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@ -91,11 +91,12 @@ inline void DefNewGeneration::FastKeepAliveClosure::do_oop_work(T* p) {
template <typename OopClosureType>
void DefNewGeneration::oop_since_save_marks_iterate(OopClosureType* cl) {
eden()->oop_since_save_marks_iterate(cl);
to()->oop_since_save_marks_iterate(cl);
from()->oop_since_save_marks_iterate(cl);
// No allocation in eden and from spaces, so no iteration required.
assert(eden()->saved_mark_at_top(), "inv");
assert(from()->saved_mark_at_top(), "inv");
save_marks();
to()->oop_since_save_marks_iterate(cl);
to()->set_saved_mark();
}
#endif // SHARE_GC_SERIAL_DEFNEWGENERATION_INLINE_HPP