Mercurial > hg > graal-jvmci-8
comparison src/cpu/x86/vm/c1_Runtime1_x86.cpp @ 13451:02f27ecb4f3a
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 18 Dec 2013 00:00:24 +0100 |
parents | 096c224171c4 61746b5f0ed3 |
children | d8041d695d19 |
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13371:4db09b7304da | 13451:02f27ecb4f3a |
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1717 // arg0: store_address | 1717 // arg0: store_address |
1718 Address store_addr(rbp, 2*BytesPerWord); | 1718 Address store_addr(rbp, 2*BytesPerWord); |
1719 | 1719 |
1720 BarrierSet* bs = Universe::heap()->barrier_set(); | 1720 BarrierSet* bs = Universe::heap()->barrier_set(); |
1721 CardTableModRefBS* ct = (CardTableModRefBS*)bs; | 1721 CardTableModRefBS* ct = (CardTableModRefBS*)bs; |
1722 assert(sizeof(*ct->byte_map_base) == sizeof(jbyte), "adjust this code"); | |
1723 | |
1722 Label done; | 1724 Label done; |
1723 Label runtime; | 1725 Label runtime; |
1724 | 1726 |
1725 // At this point we know new_value is non-NULL and the new_value crosses regsion. | 1727 // At this point we know new_value is non-NULL and the new_value crosses regions. |
1726 // Must check to see if card is already dirty | 1728 // Must check to see if card is already dirty |
1727 | 1729 |
1728 const Register thread = NOT_LP64(rax) LP64_ONLY(r15_thread); | 1730 const Register thread = NOT_LP64(rax) LP64_ONLY(r15_thread); |
1729 | 1731 |
1730 Address queue_index(thread, in_bytes(JavaThread::dirty_card_queue_offset() + | 1732 Address queue_index(thread, in_bytes(JavaThread::dirty_card_queue_offset() + |
1733 PtrQueue::byte_offset_of_buf())); | 1735 PtrQueue::byte_offset_of_buf())); |
1734 | 1736 |
1735 __ push(rax); | 1737 __ push(rax); |
1736 __ push(rcx); | 1738 __ push(rcx); |
1737 | 1739 |
1740 const Register cardtable = rax; | |
1741 const Register card_addr = rcx; | |
1742 | |
1743 f.load_argument(0, card_addr); | |
1744 __ shrptr(card_addr, CardTableModRefBS::card_shift); | |
1745 // Do not use ExternalAddress to load 'byte_map_base', since 'byte_map_base' is NOT | |
1746 // a valid address and therefore is not properly handled by the relocation code. | |
1747 __ movptr(cardtable, (intptr_t)ct->byte_map_base); | |
1748 __ addptr(card_addr, cardtable); | |
1749 | |
1738 NOT_LP64(__ get_thread(thread);) | 1750 NOT_LP64(__ get_thread(thread);) |
1739 ExternalAddress cardtable((address)ct->byte_map_base); | |
1740 assert(sizeof(*ct->byte_map_base) == sizeof(jbyte), "adjust this code"); | |
1741 | |
1742 const Register card_addr = rcx; | |
1743 #ifdef _LP64 | |
1744 const Register tmp = rscratch1; | |
1745 f.load_argument(0, card_addr); | |
1746 __ shrq(card_addr, CardTableModRefBS::card_shift); | |
1747 __ lea(tmp, cardtable); | |
1748 // get the address of the card | |
1749 __ addq(card_addr, tmp); | |
1750 #else | |
1751 const Register card_index = rcx; | |
1752 f.load_argument(0, card_index); | |
1753 __ shrl(card_index, CardTableModRefBS::card_shift); | |
1754 | |
1755 Address index(noreg, card_index, Address::times_1); | |
1756 __ leal(card_addr, __ as_Address(ArrayAddress(cardtable, index))); | |
1757 #endif | |
1758 | 1751 |
1759 __ cmpb(Address(card_addr, 0), (int)G1SATBCardTableModRefBS::g1_young_card_val()); | 1752 __ cmpb(Address(card_addr, 0), (int)G1SATBCardTableModRefBS::g1_young_card_val()); |
1760 __ jcc(Assembler::equal, done); | 1753 __ jcc(Assembler::equal, done); |
1761 | 1754 |
1762 __ membar(Assembler::Membar_mask_bits(Assembler::StoreLoad)); | 1755 __ membar(Assembler::Membar_mask_bits(Assembler::StoreLoad)); |