1693     transform_later(rawmem);
1694   }
1695 }
1696 
1697 // Helper for PhaseMacroExpand::expand_allocate_common.
1698 // Initializes the newly-allocated storage.
1699 Node*
1700 PhaseMacroExpand::initialize_object(AllocateNode* alloc,
1701                                     Node* control, Node* rawmem, Node* object,
1702                                     Node* klass_node, Node* length,
1703                                     Node* size_in_bytes) {
1704   InitializeNode* init = alloc->initialization();
1705   // Store the klass & mark bits
1706   Node* mark_node = alloc->make_ideal_mark(&_igvn, object, control, rawmem);
1707   if (!mark_node->is_Con()) {
1708     transform_later(mark_node);
1709   }
1710   rawmem = make_store(control, rawmem, object, oopDesc::mark_offset_in_bytes(), mark_node, TypeX_X->basic_type());
1711 
1712   if (!UseCompactObjectHeaders) {
1713     rawmem = make_store(control, rawmem, object, oopDesc::klass_offset_in_bytes(), klass_node, T_METADATA);
1714   }
1715   int header_size = alloc->minimum_header_size();  // conservatively small
1716 
1717   // Array length
1718   if (length != nullptr) {         // Arrays need length field
1719     rawmem = make_store(control, rawmem, object, arrayOopDesc::length_offset_in_bytes(), length, T_INT);
1720     // conservatively small header size:
1721     header_size = arrayOopDesc::base_offset_in_bytes(T_BYTE);
1722     if (_igvn.type(klass_node)->isa_aryklassptr()) {   // we know the exact header size in most cases:
1723       BasicType elem = _igvn.type(klass_node)->is_klassptr()->as_instance_type()->isa_aryptr()->elem()->array_element_basic_type();
1724       if (is_reference_type(elem, true)) {
1725         elem = T_OBJECT;
1726       }
1727       header_size = Klass::layout_helper_header_size(Klass::array_layout_helper(elem));
1728     }
1729   }
1730 
1731   // Clear the object body, if necessary.
1732   if (init == nullptr) {
1733     // The init has somehow disappeared; be cautious and clear everything.

2320   Node* superklass = check->in(SubTypeCheckNode::SuperKlass);
2321   assert(bol->is_Bool() && bol->as_Bool()->_test._test == BoolTest::ne, "unexpected bool node");
2322 
2323   for (DUIterator_Last imin, i = bol->last_outs(imin); i >= imin; --i) {
2324     Node* iff = bol->last_out(i);
2325     assert(iff->is_If(), "where's the if?");
2326 
2327     if (iff->in(0)->is_top()) {
2328       _igvn.replace_input_of(iff, 1, C->top());
2329       continue;
2330     }
2331 
2332     Node* iftrue = iff->as_If()->proj_out(1);
2333     Node* iffalse = iff->as_If()->proj_out(0);
2334     Node* ctrl = iff->in(0);
2335 
2336     Node* subklass = nullptr;
2337     if (_igvn.type(obj_or_subklass)->isa_klassptr()) {
2338       subklass = obj_or_subklass;
2339     } else {
2340       Node* k_adr = basic_plus_adr(obj_or_subklass, oopDesc::klass_offset_in_bytes());
2341       subklass = _igvn.transform(LoadKlassNode::make(_igvn, C->immutable_memory(), k_adr, TypeInstPtr::KLASS));
2342     }
2343 
2344     Node* not_subtype_ctrl = Phase::gen_subtype_check(subklass, superklass, &ctrl, nullptr, _igvn, check->method(), check->bci());
2345 
2346     _igvn.replace_input_of(iff, 0, C->top());
2347     _igvn.replace_node(iftrue, not_subtype_ctrl);
2348     _igvn.replace_node(iffalse, ctrl);
2349   }
2350   _igvn.replace_node(check, C->top());
2351 }
2352 
2353 //---------------------------eliminate_macro_nodes----------------------
2354 // Eliminate scalar replaced allocations and associated locks.
2355 void PhaseMacroExpand::eliminate_macro_nodes() {
2356   if (C->macro_count() == 0)
2357     return;
2358   NOT_PRODUCT(int membar_before = count_MemBar(C);)
2359 
2360   // Before elimination may re-mark (change to Nested or NonEscObj)

1693     transform_later(rawmem);
1694   }
1695 }
1696 
1697 // Helper for PhaseMacroExpand::expand_allocate_common.
1698 // Initializes the newly-allocated storage.
1699 Node*
1700 PhaseMacroExpand::initialize_object(AllocateNode* alloc,
1701                                     Node* control, Node* rawmem, Node* object,
1702                                     Node* klass_node, Node* length,
1703                                     Node* size_in_bytes) {
1704   InitializeNode* init = alloc->initialization();
1705   // Store the klass & mark bits
1706   Node* mark_node = alloc->make_ideal_mark(&_igvn, object, control, rawmem);
1707   if (!mark_node->is_Con()) {
1708     transform_later(mark_node);
1709   }
1710   rawmem = make_store(control, rawmem, object, oopDesc::mark_offset_in_bytes(), mark_node, TypeX_X->basic_type());
1711 
1712   if (!UseCompactObjectHeaders) {
1713     rawmem = make_store(control, rawmem, object, Type::klass_offset(), klass_node, T_METADATA);
1714   }
1715   int header_size = alloc->minimum_header_size();  // conservatively small
1716 
1717   // Array length
1718   if (length != nullptr) {         // Arrays need length field
1719     rawmem = make_store(control, rawmem, object, arrayOopDesc::length_offset_in_bytes(), length, T_INT);
1720     // conservatively small header size:
1721     header_size = arrayOopDesc::base_offset_in_bytes(T_BYTE);
1722     if (_igvn.type(klass_node)->isa_aryklassptr()) {   // we know the exact header size in most cases:
1723       BasicType elem = _igvn.type(klass_node)->is_klassptr()->as_instance_type()->isa_aryptr()->elem()->array_element_basic_type();
1724       if (is_reference_type(elem, true)) {
1725         elem = T_OBJECT;
1726       }
1727       header_size = Klass::layout_helper_header_size(Klass::array_layout_helper(elem));
1728     }
1729   }
1730 
1731   // Clear the object body, if necessary.
1732   if (init == nullptr) {
1733     // The init has somehow disappeared; be cautious and clear everything.

2320   Node* superklass = check->in(SubTypeCheckNode::SuperKlass);
2321   assert(bol->is_Bool() && bol->as_Bool()->_test._test == BoolTest::ne, "unexpected bool node");
2322 
2323   for (DUIterator_Last imin, i = bol->last_outs(imin); i >= imin; --i) {
2324     Node* iff = bol->last_out(i);
2325     assert(iff->is_If(), "where's the if?");
2326 
2327     if (iff->in(0)->is_top()) {
2328       _igvn.replace_input_of(iff, 1, C->top());
2329       continue;
2330     }
2331 
2332     Node* iftrue = iff->as_If()->proj_out(1);
2333     Node* iffalse = iff->as_If()->proj_out(0);
2334     Node* ctrl = iff->in(0);
2335 
2336     Node* subklass = nullptr;
2337     if (_igvn.type(obj_or_subklass)->isa_klassptr()) {
2338       subklass = obj_or_subklass;
2339     } else {
2340       Node* k_adr = basic_plus_adr(obj_or_subklass, Type::klass_offset());
2341       subklass = _igvn.transform(LoadKlassNode::make(_igvn, C->immutable_memory(), k_adr, TypeInstPtr::KLASS));
2342     }
2343 
2344     Node* not_subtype_ctrl = Phase::gen_subtype_check(subklass, superklass, &ctrl, nullptr, _igvn, check->method(), check->bci());
2345 
2346     _igvn.replace_input_of(iff, 0, C->top());
2347     _igvn.replace_node(iftrue, not_subtype_ctrl);
2348     _igvn.replace_node(iffalse, ctrl);
2349   }
2350   _igvn.replace_node(check, C->top());
2351 }
2352 
2353 //---------------------------eliminate_macro_nodes----------------------
2354 // Eliminate scalar replaced allocations and associated locks.
2355 void PhaseMacroExpand::eliminate_macro_nodes() {
2356   if (C->macro_count() == 0)
2357     return;
2358   NOT_PRODUCT(int membar_before = count_MemBar(C);)
2359 
2360   // Before elimination may re-mark (change to Nested or NonEscObj)