1661 k_RInfo = dst;
1662 } else if (obj == klass_RInfo) {
1663 klass_RInfo = dst;
1664 }
1665 if (k->is_loaded() && !UseCompressedClassPointers) {
1666 select_different_registers(obj, dst, k_RInfo, klass_RInfo);
1667 } else {
1668 Rtmp1 = op->tmp3()->as_register();
1669 select_different_registers(obj, dst, k_RInfo, klass_RInfo, Rtmp1);
1670 }
1671
1672 assert_different_registers(obj, k_RInfo, klass_RInfo);
1673
1674 __ cmpptr(obj, (int32_t)NULL_WORD);
1675 if (op->should_profile()) {
1676 Label not_null;
1677 __ jccb(Assembler::notEqual, not_null);
1678 // Object is null; update MDO and exit
1679 Register mdo = klass_RInfo;
1680 __ mov_metadata(mdo, md->constant_encoding());
1681 Address data_addr(mdo, md->byte_offset_of_slot(data, DataLayout::header_offset()));
1682 int header_bits = DataLayout::flag_mask_to_header_mask(BitData::null_seen_byte_constant());
1683 __ orl(data_addr, header_bits);
1684 __ jmp(*obj_is_null);
1685 __ bind(not_null);
1686 } else {
1687 __ jcc(Assembler::equal, *obj_is_null);
1688 }
1689
1690 if (!k->is_loaded()) {
1691 klass2reg_with_patching(k_RInfo, op->info_for_patch());
1692 } else {
1693 #ifdef _LP64
1694 __ mov_metadata(k_RInfo, k->constant_encoding());
1695 #endif // _LP64
1696 }
1697 __ verify_oop(obj);
1698
1699 if (op->fast_check()) {
1700 // get object class
1701 // not a safepoint as obj null check happens earlier
1702 #ifdef _LP64
1703 if (UseCompressedClassPointers) {
1807 ciMethod* method = op->profiled_method();
1808 assert(method != NULL, "Should have method");
1809 int bci = op->profiled_bci();
1810 md = method->method_data_or_null();
1811 assert(md != NULL, "Sanity");
1812 data = md->bci_to_data(bci);
1813 assert(data != NULL, "need data for type check");
1814 assert(data->is_ReceiverTypeData(), "need ReceiverTypeData for type check");
1815 }
1816 Label profile_cast_success, profile_cast_failure, done;
1817 Label *success_target = op->should_profile() ? &profile_cast_success : &done;
1818 Label *failure_target = op->should_profile() ? &profile_cast_failure : stub->entry();
1819
1820 __ cmpptr(value, (int32_t)NULL_WORD);
1821 if (op->should_profile()) {
1822 Label not_null;
1823 __ jccb(Assembler::notEqual, not_null);
1824 // Object is null; update MDO and exit
1825 Register mdo = klass_RInfo;
1826 __ mov_metadata(mdo, md->constant_encoding());
1827 Address data_addr(mdo, md->byte_offset_of_slot(data, DataLayout::header_offset()));
1828 int header_bits = DataLayout::flag_mask_to_header_mask(BitData::null_seen_byte_constant());
1829 __ orl(data_addr, header_bits);
1830 __ jmp(done);
1831 __ bind(not_null);
1832 } else {
1833 __ jcc(Assembler::equal, done);
1834 }
1835
1836 add_debug_info_for_null_check_here(op->info_for_exception());
1837 __ load_klass(k_RInfo, array);
1838 __ load_klass(klass_RInfo, value);
1839
1840 // get instance klass (it's already uncompressed)
1841 __ movptr(k_RInfo, Address(k_RInfo, ObjArrayKlass::element_klass_offset()));
1842 // perform the fast part of the checking logic
1843 __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, Rtmp1, success_target, failure_target, NULL);
1844 // call out-of-line instance of __ check_klass_subtype_slow_path(...):
1845 __ push(klass_RInfo);
1846 __ push(k_RInfo);
1847 __ call(RuntimeAddress(Runtime1::entry_for(Runtime1::slow_subtype_check_id)));
1848 __ pop(klass_RInfo);
1849 __ pop(k_RInfo);
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1661 k_RInfo = dst;
1662 } else if (obj == klass_RInfo) {
1663 klass_RInfo = dst;
1664 }
1665 if (k->is_loaded() && !UseCompressedClassPointers) {
1666 select_different_registers(obj, dst, k_RInfo, klass_RInfo);
1667 } else {
1668 Rtmp1 = op->tmp3()->as_register();
1669 select_different_registers(obj, dst, k_RInfo, klass_RInfo, Rtmp1);
1670 }
1671
1672 assert_different_registers(obj, k_RInfo, klass_RInfo);
1673
1674 __ cmpptr(obj, (int32_t)NULL_WORD);
1675 if (op->should_profile()) {
1676 Label not_null;
1677 __ jccb(Assembler::notEqual, not_null);
1678 // Object is null; update MDO and exit
1679 Register mdo = klass_RInfo;
1680 __ mov_metadata(mdo, md->constant_encoding());
1681 Address data_addr(mdo, md->byte_offset_of_slot(data, DataLayout::flags_offset()));
1682 int header_bits = BitData::null_seen_byte_constant();
1683 __ orb(data_addr, header_bits);
1684 __ jmp(*obj_is_null);
1685 __ bind(not_null);
1686 } else {
1687 __ jcc(Assembler::equal, *obj_is_null);
1688 }
1689
1690 if (!k->is_loaded()) {
1691 klass2reg_with_patching(k_RInfo, op->info_for_patch());
1692 } else {
1693 #ifdef _LP64
1694 __ mov_metadata(k_RInfo, k->constant_encoding());
1695 #endif // _LP64
1696 }
1697 __ verify_oop(obj);
1698
1699 if (op->fast_check()) {
1700 // get object class
1701 // not a safepoint as obj null check happens earlier
1702 #ifdef _LP64
1703 if (UseCompressedClassPointers) {
1807 ciMethod* method = op->profiled_method();
1808 assert(method != NULL, "Should have method");
1809 int bci = op->profiled_bci();
1810 md = method->method_data_or_null();
1811 assert(md != NULL, "Sanity");
1812 data = md->bci_to_data(bci);
1813 assert(data != NULL, "need data for type check");
1814 assert(data->is_ReceiverTypeData(), "need ReceiverTypeData for type check");
1815 }
1816 Label profile_cast_success, profile_cast_failure, done;
1817 Label *success_target = op->should_profile() ? &profile_cast_success : &done;
1818 Label *failure_target = op->should_profile() ? &profile_cast_failure : stub->entry();
1819
1820 __ cmpptr(value, (int32_t)NULL_WORD);
1821 if (op->should_profile()) {
1822 Label not_null;
1823 __ jccb(Assembler::notEqual, not_null);
1824 // Object is null; update MDO and exit
1825 Register mdo = klass_RInfo;
1826 __ mov_metadata(mdo, md->constant_encoding());
1827 Address data_addr(mdo, md->byte_offset_of_slot(data, DataLayout::flags_offset()));
1828 int header_bits = BitData::null_seen_byte_constant();
1829 __ orb(data_addr, header_bits);
1830 __ jmp(done);
1831 __ bind(not_null);
1832 } else {
1833 __ jcc(Assembler::equal, done);
1834 }
1835
1836 add_debug_info_for_null_check_here(op->info_for_exception());
1837 __ load_klass(k_RInfo, array);
1838 __ load_klass(klass_RInfo, value);
1839
1840 // get instance klass (it's already uncompressed)
1841 __ movptr(k_RInfo, Address(k_RInfo, ObjArrayKlass::element_klass_offset()));
1842 // perform the fast part of the checking logic
1843 __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, Rtmp1, success_target, failure_target, NULL);
1844 // call out-of-line instance of __ check_klass_subtype_slow_path(...):
1845 __ push(klass_RInfo);
1846 __ push(k_RInfo);
1847 __ call(RuntimeAddress(Runtime1::entry_for(Runtime1::slow_subtype_check_id)));
1848 __ pop(klass_RInfo);
1849 __ pop(k_RInfo);
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