27 #include "gc/shared/barrierSet.hpp"
28 #include "gc/shared/cardTable.hpp"
29 #include "gc/shared/cardTableBarrierSet.hpp"
30 #include "gc/shared/cardTableBarrierSetAssembler.hpp"
31 #include "gc/shared/collectedHeap.hpp"
32 #include "runtime/globals.hpp"
33
34 #define __ masm->
35
36 #ifdef PRODUCT
37 #define BLOCK_COMMENT(str) /* nothing */
38 #else
39 #define BLOCK_COMMENT(str) __ block_comment(str)
40 #endif
41
42 #define BIND(label) bind(label); BLOCK_COMMENT(#label ":")
43
44 void CardTableBarrierSetAssembler::gen_write_ref_array_post_barrier(MacroAssembler* masm, DecoratorSet decorators,
45 Register addr, Register count, Register tmp) {
46 BLOCK_COMMENT("CardTablePostBarrier");
47 BarrierSet* bs = Universe::heap()->barrier_set();
48 CardTableBarrierSet* ctbs = barrier_set_cast<CardTableBarrierSet>(bs);
49 CardTable* ct = ctbs->card_table();
50 assert(sizeof(*ct->byte_map_base()) == sizeof(jbyte), "adjust this code");
51
52 Label L_cardtable_loop, L_done;
53
54 __ cbz_32(count, L_done); // zero count - nothing to do
55
56 __ add_ptr_scaled_int32(count, addr, count, LogBytesPerHeapOop);
57 __ sub(count, count, BytesPerHeapOop); // last addr
58
59 __ logical_shift_right(addr, addr, CardTable::card_shift);
60 __ logical_shift_right(count, count, CardTable::card_shift);
61 __ sub(count, count, addr); // nb of cards
62
63 // warning: Rthread has not been preserved
64 __ mov_address(tmp, (address) ct->byte_map_base(), symbolic_Relocation::card_table_reference);
65 __ add(addr,tmp, addr);
66
67 Register zero = __ zero_register(tmp);
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27 #include "gc/shared/barrierSet.hpp"
28 #include "gc/shared/cardTable.hpp"
29 #include "gc/shared/cardTableBarrierSet.hpp"
30 #include "gc/shared/cardTableBarrierSetAssembler.hpp"
31 #include "gc/shared/collectedHeap.hpp"
32 #include "runtime/globals.hpp"
33
34 #define __ masm->
35
36 #ifdef PRODUCT
37 #define BLOCK_COMMENT(str) /* nothing */
38 #else
39 #define BLOCK_COMMENT(str) __ block_comment(str)
40 #endif
41
42 #define BIND(label) bind(label); BLOCK_COMMENT(#label ":")
43
44 void CardTableBarrierSetAssembler::gen_write_ref_array_post_barrier(MacroAssembler* masm, DecoratorSet decorators,
45 Register addr, Register count, Register tmp) {
46 BLOCK_COMMENT("CardTablePostBarrier");
47 BarrierSet* bs = BarrierSet::barrier_set();
48 CardTableBarrierSet* ctbs = barrier_set_cast<CardTableBarrierSet>(bs);
49 CardTable* ct = ctbs->card_table();
50 assert(sizeof(*ct->byte_map_base()) == sizeof(jbyte), "adjust this code");
51
52 Label L_cardtable_loop, L_done;
53
54 __ cbz_32(count, L_done); // zero count - nothing to do
55
56 __ add_ptr_scaled_int32(count, addr, count, LogBytesPerHeapOop);
57 __ sub(count, count, BytesPerHeapOop); // last addr
58
59 __ logical_shift_right(addr, addr, CardTable::card_shift);
60 __ logical_shift_right(count, count, CardTable::card_shift);
61 __ sub(count, count, addr); // nb of cards
62
63 // warning: Rthread has not been preserved
64 __ mov_address(tmp, (address) ct->byte_map_base(), symbolic_Relocation::card_table_reference);
65 __ add(addr,tmp, addr);
66
67 Register zero = __ zero_register(tmp);
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