1658
1659 __ bind(runtime);
1660
1661 save_live_registers(sasm, 3);
1662
1663 // load the pre-value
1664 f.load_argument(0, rcx);
1665 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::g1_wb_pre), rcx, thread);
1666
1667 restore_live_registers(sasm);
1668
1669 __ bind(done);
1670
1671 __ pop(rdx);
1672 __ pop(rax);
1673 }
1674 break;
1675
1676 case g1_post_barrier_slow_id:
1677 {
1678 StubFrame f(sasm, "g1_post_barrier", dont_gc_arguments);
1679
1680
1681 // arg0: store_address
1682 Address store_addr(rbp, 2*BytesPerWord);
1683
1684 CardTableModRefBS* ct =
1685 barrier_set_cast<CardTableModRefBS>(Universe::heap()->barrier_set());
1686 assert(sizeof(*ct->byte_map_base) == sizeof(jbyte), "adjust this code");
1687
1688 Label done;
1689 Label enqueued;
1690 Label runtime;
1691
1692 // At this point we know new_value is non-NULL and the new_value crosses regions.
1693 // Must check to see if card is already dirty
1694
1695 const Register thread = NOT_LP64(rax) LP64_ONLY(r15_thread);
1696
1697 Address queue_index(thread, in_bytes(JavaThread::dirty_card_queue_offset() +
|
1658
1659 __ bind(runtime);
1660
1661 save_live_registers(sasm, 3);
1662
1663 // load the pre-value
1664 f.load_argument(0, rcx);
1665 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::g1_wb_pre), rcx, thread);
1666
1667 restore_live_registers(sasm);
1668
1669 __ bind(done);
1670
1671 __ pop(rdx);
1672 __ pop(rax);
1673 }
1674 break;
1675
1676 case g1_post_barrier_slow_id:
1677 {
1678 // avoid touching CardTableModRefBS if not G1
1679 // FIXME: This looks like an upstream bug.
1680 if (!UseG1GC) break;
1681
1682 StubFrame f(sasm, "g1_post_barrier", dont_gc_arguments);
1683
1684
1685 // arg0: store_address
1686 Address store_addr(rbp, 2*BytesPerWord);
1687
1688 CardTableModRefBS* ct =
1689 barrier_set_cast<CardTableModRefBS>(Universe::heap()->barrier_set());
1690 assert(sizeof(*ct->byte_map_base) == sizeof(jbyte), "adjust this code");
1691
1692 Label done;
1693 Label enqueued;
1694 Label runtime;
1695
1696 // At this point we know new_value is non-NULL and the new_value crosses regions.
1697 // Must check to see if card is already dirty
1698
1699 const Register thread = NOT_LP64(rax) LP64_ONLY(r15_thread);
1700
1701 Address queue_index(thread, in_bytes(JavaThread::dirty_card_queue_offset() +
|