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8282348: Remove unused CardTable::dirty_card_iterate

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Reviewed-by: kbarrett
This commit is contained in:
Albert Mingkun Yang 2022-02-24 17:47:30 +00:00
parent 6fab8a2d6a
commit 0b6862e803
2 changed files with 0 additions and 30 deletions
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26
src/hotspot/share/gc/shared/cardTable.cpp
View file

@ -385,32 +385,6 @@ void CardTable::dirty(MemRegion mr) {
memset(first, dirty_card, last-first); memset(first, dirty_card, last-first);
} }
// Unlike several other card table methods, dirty_card_iterate()
// iterates over dirty cards ranges in increasing address order.
void CardTable::dirty_card_iterate(MemRegion mr, MemRegionClosure* cl) {
for (int i = 0; i < _cur_covered_regions; i++) {
MemRegion mri = mr.intersection(_covered[i]);
if (!mri.is_empty()) {
CardValue *cur_entry, *next_entry, *limit;
for (cur_entry = byte_for(mri.start()), limit = byte_for(mri.last());
cur_entry <= limit;
cur_entry = next_entry) {
next_entry = cur_entry + 1;
if (*cur_entry == dirty_card) {
size_t dirty_cards;
// Accumulate maximal dirty card range, starting at cur_entry
for (dirty_cards = 1;
next_entry <= limit && *next_entry == dirty_card;
dirty_cards++, next_entry++);
MemRegion cur_cards(addr_for(cur_entry),
dirty_cards*_card_size_in_words);
cl->do_MemRegion(cur_cards);
}
}
}
}
}
MemRegion CardTable::dirty_card_range_after_reset(MemRegion mr, MemRegion CardTable::dirty_card_range_after_reset(MemRegion mr,
bool reset, bool reset,
int reset_val) { int reset_val) {

4
src/hotspot/share/gc/shared/cardTable.hpp
View file

@ -218,10 +218,6 @@ public:
static uintx ct_max_alignment_constraint(); static uintx ct_max_alignment_constraint();
// Apply closure "cl" to the dirty cards containing some part of
// MemRegion "mr".
void dirty_card_iterate(MemRegion mr, MemRegionClosure* cl);
// Return the MemRegion corresponding to the first maximal run // Return the MemRegion corresponding to the first maximal run
// of dirty cards lying completely within MemRegion mr. // of dirty cards lying completely within MemRegion mr.
// If reset is "true", then sets those card table entries to the given // If reset is "true", then sets those card table entries to the given