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8220301: Remove jbyte use in CardTable

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Use CardTable::CardValue aliased to uint8_t instead.

Reviewed-by: kbarrett, shade
This commit is contained in:
Thomas Schatzl 2019-03-13 21:01:56 +01:00
parent 4df6db5e3f
commit ece7e8a2a1
50 changed files with 255 additions and 251 deletions
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10
src/hotspot/share/gc/parallel/psCardTable.hpp
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@ -54,8 +54,8 @@ class PSCardTable: public CardTable {
public:
PSCardTable(MemRegion whole_heap) : CardTable(whole_heap, /* scanned_concurrently */ false) {}
static jbyte youngergen_card_val() { return youngergen_card; }
static jbyte verify_card_val() { return verify_card; }
static CardValue youngergen_card_val() { return youngergen_card; }
static CardValue verify_card_val() { return verify_card; }
// Scavenge support
void scavenge_contents_parallel(ObjectStartArray* start_array,
@ -68,7 +68,7 @@ class PSCardTable: public CardTable {
bool addr_is_marked_imprecise(void *addr);
bool addr_is_marked_precise(void *addr);
void set_card_newgen(void* addr) { jbyte* p = byte_for(addr); *p = verify_card; }
void set_card_newgen(void* addr) { CardValue* p = byte_for(addr); *p = verify_card; }
// Testers for entries
static bool card_is_dirty(int value) { return value == dirty_card; }
@ -78,7 +78,7 @@ class PSCardTable: public CardTable {
// Card marking
void inline_write_ref_field_gc(void* field, oop new_val) {
jbyte* byte = byte_for(field);
CardValue* byte = byte_for(field);
*byte = youngergen_card;
}
@ -99,7 +99,7 @@ class PSCardTable: public CardTable {
HeapWord* lowest_prev_committed_start(int ind) const;
#ifdef ASSERT
bool is_valid_card_address(jbyte* addr) {
bool is_valid_card_address(CardValue* addr) {
return (addr >= _byte_map) && (addr < _byte_map + _byte_map_size);
}
#endif // ASSERT