1682 transform_later(rawmem);
1683 }
1684 }
1685
1686 // Helper for PhaseMacroExpand::expand_allocate_common.
1687 // Initializes the newly-allocated storage.
1688 Node*
1689 PhaseMacroExpand::initialize_object(AllocateNode* alloc,
1690 Node* control, Node* rawmem, Node* object,
1691 Node* klass_node, Node* length,
1692 Node* size_in_bytes) {
1693 InitializeNode* init = alloc->initialization();
1694 // Store the klass & mark bits
1695 Node* mark_node = alloc->make_ideal_mark(&_igvn, object, control, rawmem);
1696 if (!mark_node->is_Con()) {
1697 transform_later(mark_node);
1698 }
1699 rawmem = make_store(control, rawmem, object, oopDesc::mark_offset_in_bytes(), mark_node, TypeX_X->basic_type());
1700
1701 if (!UseCompactObjectHeaders) {
1702 rawmem = make_store(control, rawmem, object, oopDesc::klass_offset_in_bytes(), klass_node, T_METADATA);
1703 }
1704 int header_size = alloc->minimum_header_size(); // conservatively small
1705
1706 // Array length
1707 if (length != nullptr) { // Arrays need length field
1708 rawmem = make_store(control, rawmem, object, arrayOopDesc::length_offset_in_bytes(), length, T_INT);
1709 // conservatively small header size:
1710 header_size = arrayOopDesc::base_offset_in_bytes(T_BYTE);
1711 if (_igvn.type(klass_node)->isa_aryklassptr()) { // we know the exact header size in most cases:
1712 BasicType elem = _igvn.type(klass_node)->is_klassptr()->as_instance_type()->isa_aryptr()->elem()->array_element_basic_type();
1713 if (is_reference_type(elem, true)) {
1714 elem = T_OBJECT;
1715 }
1716 header_size = Klass::layout_helper_header_size(Klass::array_layout_helper(elem));
1717 }
1718 }
1719
1720 // Clear the object body, if necessary.
1721 if (init == nullptr) {
1722 // The init has somehow disappeared; be cautious and clear everything.
2309 Node* superklass = check->in(SubTypeCheckNode::SuperKlass);
2310 assert(bol->is_Bool() && bol->as_Bool()->_test._test == BoolTest::ne, "unexpected bool node");
2311
2312 for (DUIterator_Last imin, i = bol->last_outs(imin); i >= imin; --i) {
2313 Node* iff = bol->last_out(i);
2314 assert(iff->is_If(), "where's the if?");
2315
2316 if (iff->in(0)->is_top()) {
2317 _igvn.replace_input_of(iff, 1, C->top());
2318 continue;
2319 }
2320
2321 Node* iftrue = iff->as_If()->proj_out(1);
2322 Node* iffalse = iff->as_If()->proj_out(0);
2323 Node* ctrl = iff->in(0);
2324
2325 Node* subklass = nullptr;
2326 if (_igvn.type(obj_or_subklass)->isa_klassptr()) {
2327 subklass = obj_or_subklass;
2328 } else {
2329 Node* k_adr = basic_plus_adr(obj_or_subklass, oopDesc::klass_offset_in_bytes());
2330 subklass = _igvn.transform(LoadKlassNode::make(_igvn, C->immutable_memory(), k_adr, TypeInstPtr::KLASS));
2331 }
2332
2333 Node* not_subtype_ctrl = Phase::gen_subtype_check(subklass, superklass, &ctrl, nullptr, _igvn, check->method(), check->bci());
2334
2335 _igvn.replace_input_of(iff, 0, C->top());
2336 _igvn.replace_node(iftrue, not_subtype_ctrl);
2337 _igvn.replace_node(iffalse, ctrl);
2338 }
2339 _igvn.replace_node(check, C->top());
2340 }
2341
2342 // Perform refining of strip mined loop nodes in the macro nodes list.
2343 void PhaseMacroExpand::refine_strip_mined_loop_macro_nodes() {
2344 for (int i = C->macro_count(); i > 0; i--) {
2345 Node* n = C->macro_node(i - 1);
2346 if (n->is_OuterStripMinedLoop()) {
2347 n->as_OuterStripMinedLoop()->adjust_strip_mined_loop(&_igvn);
2348 }
2349 }
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1682 transform_later(rawmem);
1683 }
1684 }
1685
1686 // Helper for PhaseMacroExpand::expand_allocate_common.
1687 // Initializes the newly-allocated storage.
1688 Node*
1689 PhaseMacroExpand::initialize_object(AllocateNode* alloc,
1690 Node* control, Node* rawmem, Node* object,
1691 Node* klass_node, Node* length,
1692 Node* size_in_bytes) {
1693 InitializeNode* init = alloc->initialization();
1694 // Store the klass & mark bits
1695 Node* mark_node = alloc->make_ideal_mark(&_igvn, object, control, rawmem);
1696 if (!mark_node->is_Con()) {
1697 transform_later(mark_node);
1698 }
1699 rawmem = make_store(control, rawmem, object, oopDesc::mark_offset_in_bytes(), mark_node, TypeX_X->basic_type());
1700
1701 if (!UseCompactObjectHeaders) {
1702 rawmem = make_store(control, rawmem, object, Type::klass_offset(), klass_node, T_METADATA);
1703 }
1704 int header_size = alloc->minimum_header_size(); // conservatively small
1705
1706 // Array length
1707 if (length != nullptr) { // Arrays need length field
1708 rawmem = make_store(control, rawmem, object, arrayOopDesc::length_offset_in_bytes(), length, T_INT);
1709 // conservatively small header size:
1710 header_size = arrayOopDesc::base_offset_in_bytes(T_BYTE);
1711 if (_igvn.type(klass_node)->isa_aryklassptr()) { // we know the exact header size in most cases:
1712 BasicType elem = _igvn.type(klass_node)->is_klassptr()->as_instance_type()->isa_aryptr()->elem()->array_element_basic_type();
1713 if (is_reference_type(elem, true)) {
1714 elem = T_OBJECT;
1715 }
1716 header_size = Klass::layout_helper_header_size(Klass::array_layout_helper(elem));
1717 }
1718 }
1719
1720 // Clear the object body, if necessary.
1721 if (init == nullptr) {
1722 // The init has somehow disappeared; be cautious and clear everything.
2309 Node* superklass = check->in(SubTypeCheckNode::SuperKlass);
2310 assert(bol->is_Bool() && bol->as_Bool()->_test._test == BoolTest::ne, "unexpected bool node");
2311
2312 for (DUIterator_Last imin, i = bol->last_outs(imin); i >= imin; --i) {
2313 Node* iff = bol->last_out(i);
2314 assert(iff->is_If(), "where's the if?");
2315
2316 if (iff->in(0)->is_top()) {
2317 _igvn.replace_input_of(iff, 1, C->top());
2318 continue;
2319 }
2320
2321 Node* iftrue = iff->as_If()->proj_out(1);
2322 Node* iffalse = iff->as_If()->proj_out(0);
2323 Node* ctrl = iff->in(0);
2324
2325 Node* subklass = nullptr;
2326 if (_igvn.type(obj_or_subklass)->isa_klassptr()) {
2327 subklass = obj_or_subklass;
2328 } else {
2329 Node* k_adr = basic_plus_adr(obj_or_subklass, Type::klass_offset());
2330 subklass = _igvn.transform(LoadKlassNode::make(_igvn, C->immutable_memory(), k_adr, TypeInstPtr::KLASS));
2331 }
2332
2333 Node* not_subtype_ctrl = Phase::gen_subtype_check(subklass, superklass, &ctrl, nullptr, _igvn, check->method(), check->bci());
2334
2335 _igvn.replace_input_of(iff, 0, C->top());
2336 _igvn.replace_node(iftrue, not_subtype_ctrl);
2337 _igvn.replace_node(iffalse, ctrl);
2338 }
2339 _igvn.replace_node(check, C->top());
2340 }
2341
2342 // Perform refining of strip mined loop nodes in the macro nodes list.
2343 void PhaseMacroExpand::refine_strip_mined_loop_macro_nodes() {
2344 for (int i = C->macro_count(); i > 0; i--) {
2345 Node* n = C->macro_node(i - 1);
2346 if (n->is_OuterStripMinedLoop()) {
2347 n->as_OuterStripMinedLoop()->adjust_strip_mined_loop(&_igvn);
2348 }
2349 }
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