1182 }
1183 Node* conv = _gvn.transform( new ConvI2LNode(offset));
1184 Node* mask = _gvn.transform(ConLNode::make((julong) max_juint));
1185 return _gvn.transform( new AndLNode(conv, mask) );
1186 }
1187
1188 Node* GraphKit::ConvL2I(Node* offset) {
1189 // short-circuit a common case
1190 jlong offset_con = find_long_con(offset, (jlong)Type::OffsetBot);
1191 if (offset_con != (jlong)Type::OffsetBot) {
1192 return intcon((int) offset_con);
1193 }
1194 return _gvn.transform( new ConvL2INode(offset));
1195 }
1196
1197 //-------------------------load_object_klass-----------------------------------
1198 Node* GraphKit::load_object_klass(Node* obj) {
1199 // Special-case a fresh allocation to avoid building nodes:
1200 Node* akls = AllocateNode::Ideal_klass(obj, &_gvn);
1201 if (akls != nullptr) return akls;
1202 Node* k_adr = basic_plus_adr(obj, oopDesc::klass_offset_in_bytes());
1203 return _gvn.transform(LoadKlassNode::make(_gvn, nullptr, immutable_memory(), k_adr, TypeInstPtr::KLASS));
1204 }
1205
1206 //-------------------------load_array_length-----------------------------------
1207 Node* GraphKit::load_array_length(Node* array) {
1208 // Special-case a fresh allocation to avoid building nodes:
1209 AllocateArrayNode* alloc = AllocateArrayNode::Ideal_array_allocation(array);
1210 Node *alen;
1211 if (alloc == nullptr) {
1212 Node *r_adr = basic_plus_adr(array, arrayOopDesc::length_offset_in_bytes());
1213 alen = _gvn.transform( new LoadRangeNode(nullptr, immutable_memory(), r_adr, TypeInt::POS));
1214 } else {
1215 alen = array_ideal_length(alloc, _gvn.type(array)->is_oopptr(), false);
1216 }
1217 return alen;
1218 }
1219
1220 Node* GraphKit::array_ideal_length(AllocateArrayNode* alloc,
1221 const TypeOopPtr* oop_type,
1222 bool replace_length_in_map) {
3646
3647 // put in an initialization barrier
3648 InitializeNode* init = insert_mem_bar_volatile(Op_Initialize, rawidx,
3649 rawoop)->as_Initialize();
3650 assert(alloc->initialization() == init, "2-way macro link must work");
3651 assert(init ->allocation() == alloc, "2-way macro link must work");
3652 {
3653 // Extract memory strands which may participate in the new object's
3654 // initialization, and source them from the new InitializeNode.
3655 // This will allow us to observe initializations when they occur,
3656 // and link them properly (as a group) to the InitializeNode.
3657 assert(init->in(InitializeNode::Memory) == malloc, "");
3658 MergeMemNode* minit_in = MergeMemNode::make(malloc);
3659 init->set_req(InitializeNode::Memory, minit_in);
3660 record_for_igvn(minit_in); // fold it up later, if possible
3661 Node* minit_out = memory(rawidx);
3662 assert(minit_out->is_Proj() && minit_out->in(0) == init, "");
3663 // Add an edge in the MergeMem for the header fields so an access
3664 // to one of those has correct memory state
3665 set_memory(minit_out, C->get_alias_index(oop_type->add_offset(oopDesc::mark_offset_in_bytes())));
3666 set_memory(minit_out, C->get_alias_index(oop_type->add_offset(oopDesc::klass_offset_in_bytes())));
3667 if (oop_type->isa_aryptr()) {
3668 const TypePtr* telemref = oop_type->add_offset(Type::OffsetBot);
3669 int elemidx = C->get_alias_index(telemref);
3670 hook_memory_on_init(*this, elemidx, minit_in, minit_out);
3671 } else if (oop_type->isa_instptr()) {
3672 ciInstanceKlass* ik = oop_type->is_instptr()->instance_klass();
3673 for (int i = 0, len = ik->nof_nonstatic_fields(); i < len; i++) {
3674 ciField* field = ik->nonstatic_field_at(i);
3675 if (field->offset_in_bytes() >= TrackedInitializationLimit * HeapWordSize)
3676 continue; // do not bother to track really large numbers of fields
3677 // Find (or create) the alias category for this field:
3678 int fieldidx = C->alias_type(field)->index();
3679 hook_memory_on_init(*this, fieldidx, minit_in, minit_out);
3680 }
3681 }
3682 }
3683
3684 // Cast raw oop to the real thing...
3685 Node* javaoop = new CheckCastPPNode(control(), rawoop, oop_type);
3686 javaoop = _gvn.transform(javaoop);
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1182 }
1183 Node* conv = _gvn.transform( new ConvI2LNode(offset));
1184 Node* mask = _gvn.transform(ConLNode::make((julong) max_juint));
1185 return _gvn.transform( new AndLNode(conv, mask) );
1186 }
1187
1188 Node* GraphKit::ConvL2I(Node* offset) {
1189 // short-circuit a common case
1190 jlong offset_con = find_long_con(offset, (jlong)Type::OffsetBot);
1191 if (offset_con != (jlong)Type::OffsetBot) {
1192 return intcon((int) offset_con);
1193 }
1194 return _gvn.transform( new ConvL2INode(offset));
1195 }
1196
1197 //-------------------------load_object_klass-----------------------------------
1198 Node* GraphKit::load_object_klass(Node* obj) {
1199 // Special-case a fresh allocation to avoid building nodes:
1200 Node* akls = AllocateNode::Ideal_klass(obj, &_gvn);
1201 if (akls != nullptr) return akls;
1202 Node* k_adr = basic_plus_adr(obj, Type::klass_offset());
1203 return _gvn.transform(LoadKlassNode::make(_gvn, nullptr, immutable_memory(), k_adr, TypeInstPtr::KLASS));
1204 }
1205
1206 //-------------------------load_array_length-----------------------------------
1207 Node* GraphKit::load_array_length(Node* array) {
1208 // Special-case a fresh allocation to avoid building nodes:
1209 AllocateArrayNode* alloc = AllocateArrayNode::Ideal_array_allocation(array);
1210 Node *alen;
1211 if (alloc == nullptr) {
1212 Node *r_adr = basic_plus_adr(array, arrayOopDesc::length_offset_in_bytes());
1213 alen = _gvn.transform( new LoadRangeNode(nullptr, immutable_memory(), r_adr, TypeInt::POS));
1214 } else {
1215 alen = array_ideal_length(alloc, _gvn.type(array)->is_oopptr(), false);
1216 }
1217 return alen;
1218 }
1219
1220 Node* GraphKit::array_ideal_length(AllocateArrayNode* alloc,
1221 const TypeOopPtr* oop_type,
1222 bool replace_length_in_map) {
3646
3647 // put in an initialization barrier
3648 InitializeNode* init = insert_mem_bar_volatile(Op_Initialize, rawidx,
3649 rawoop)->as_Initialize();
3650 assert(alloc->initialization() == init, "2-way macro link must work");
3651 assert(init ->allocation() == alloc, "2-way macro link must work");
3652 {
3653 // Extract memory strands which may participate in the new object's
3654 // initialization, and source them from the new InitializeNode.
3655 // This will allow us to observe initializations when they occur,
3656 // and link them properly (as a group) to the InitializeNode.
3657 assert(init->in(InitializeNode::Memory) == malloc, "");
3658 MergeMemNode* minit_in = MergeMemNode::make(malloc);
3659 init->set_req(InitializeNode::Memory, minit_in);
3660 record_for_igvn(minit_in); // fold it up later, if possible
3661 Node* minit_out = memory(rawidx);
3662 assert(minit_out->is_Proj() && minit_out->in(0) == init, "");
3663 // Add an edge in the MergeMem for the header fields so an access
3664 // to one of those has correct memory state
3665 set_memory(minit_out, C->get_alias_index(oop_type->add_offset(oopDesc::mark_offset_in_bytes())));
3666 set_memory(minit_out, C->get_alias_index(oop_type->add_offset(Type::klass_offset())));
3667 if (oop_type->isa_aryptr()) {
3668 const TypePtr* telemref = oop_type->add_offset(Type::OffsetBot);
3669 int elemidx = C->get_alias_index(telemref);
3670 hook_memory_on_init(*this, elemidx, minit_in, minit_out);
3671 } else if (oop_type->isa_instptr()) {
3672 ciInstanceKlass* ik = oop_type->is_instptr()->instance_klass();
3673 for (int i = 0, len = ik->nof_nonstatic_fields(); i < len; i++) {
3674 ciField* field = ik->nonstatic_field_at(i);
3675 if (field->offset_in_bytes() >= TrackedInitializationLimit * HeapWordSize)
3676 continue; // do not bother to track really large numbers of fields
3677 // Find (or create) the alias category for this field:
3678 int fieldidx = C->alias_type(field)->index();
3679 hook_memory_on_init(*this, fieldidx, minit_in, minit_out);
3680 }
3681 }
3682 }
3683
3684 // Cast raw oop to the real thing...
3685 Node* javaoop = new CheckCastPPNode(control(), rawoop, oop_type);
3686 javaoop = _gvn.transform(javaoop);
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