1254 }
1255 Node* conv = _gvn.transform( new ConvI2LNode(offset));
1256 Node* mask = _gvn.transform(ConLNode::make((julong) max_juint));
1257 return _gvn.transform( new AndLNode(conv, mask) );
1258 }
1259
1260 Node* GraphKit::ConvL2I(Node* offset) {
1261 // short-circuit a common case
1262 jlong offset_con = find_long_con(offset, (jlong)Type::OffsetBot);
1263 if (offset_con != (jlong)Type::OffsetBot) {
1264 return intcon((int) offset_con);
1265 }
1266 return _gvn.transform( new ConvL2INode(offset));
1267 }
1268
1269 //-------------------------load_object_klass-----------------------------------
1270 Node* GraphKit::load_object_klass(Node* obj) {
1271 // Special-case a fresh allocation to avoid building nodes:
1272 Node* akls = AllocateNode::Ideal_klass(obj, &_gvn);
1273 if (akls != nullptr) return akls;
1274 Node* k_adr = basic_plus_adr(obj, oopDesc::klass_offset_in_bytes());
1275 return _gvn.transform(LoadKlassNode::make(_gvn, immutable_memory(), k_adr, TypeInstPtr::KLASS));
1276 }
1277
1278 //-------------------------load_array_length-----------------------------------
1279 Node* GraphKit::load_array_length(Node* array) {
1280 // Special-case a fresh allocation to avoid building nodes:
1281 AllocateArrayNode* alloc = AllocateArrayNode::Ideal_array_allocation(array);
1282 Node *alen;
1283 if (alloc == nullptr) {
1284 Node *r_adr = basic_plus_adr(array, arrayOopDesc::length_offset_in_bytes());
1285 alen = _gvn.transform( new LoadRangeNode(nullptr, immutable_memory(), r_adr, TypeInt::POS));
1286 } else {
1287 alen = array_ideal_length(alloc, _gvn.type(array)->is_oopptr(), false);
1288 }
1289 return alen;
1290 }
1291
1292 Node* GraphKit::array_ideal_length(AllocateArrayNode* alloc,
1293 const TypeOopPtr* oop_type,
1294 bool replace_length_in_map) {
3725 InitializeNode* init = insert_mem_bar_volatile(Op_Initialize, rawidx,
3726 rawoop)->as_Initialize();
3727 assert(alloc->initialization() == init, "2-way macro link must work");
3728 assert(init ->allocation() == alloc, "2-way macro link must work");
3729 {
3730 // Extract memory strands which may participate in the new object's
3731 // initialization, and source them from the new InitializeNode.
3732 // This will allow us to observe initializations when they occur,
3733 // and link them properly (as a group) to the InitializeNode.
3734 assert(init->in(InitializeNode::Memory) == malloc, "");
3735 MergeMemNode* minit_in = MergeMemNode::make(malloc);
3736 init->set_req(InitializeNode::Memory, minit_in);
3737 record_for_igvn(minit_in); // fold it up later, if possible
3738 Node* minit_out = memory(rawidx);
3739 assert(minit_out->is_Proj() && minit_out->in(0) == init, "");
3740 int mark_idx = C->get_alias_index(oop_type->add_offset(oopDesc::mark_offset_in_bytes()));
3741 // Add an edge in the MergeMem for the header fields so an access to one of those has correct memory state.
3742 // Use one NarrowMemProjNode per slice to properly record the adr type of each slice. The Initialize node will have
3743 // multiple projections as a result.
3744 set_memory(_gvn.transform(new NarrowMemProjNode(init, C->get_adr_type(mark_idx))), mark_idx);
3745 int klass_idx = C->get_alias_index(oop_type->add_offset(oopDesc::klass_offset_in_bytes()));
3746 set_memory(_gvn.transform(new NarrowMemProjNode(init, C->get_adr_type(klass_idx))), klass_idx);
3747 if (oop_type->isa_aryptr()) {
3748 const TypePtr* telemref = oop_type->add_offset(Type::OffsetBot);
3749 int elemidx = C->get_alias_index(telemref);
3750 hook_memory_on_init(*this, elemidx, minit_in, _gvn.transform(new NarrowMemProjNode(init, C->get_adr_type(elemidx))));
3751 } else if (oop_type->isa_instptr()) {
3752 ciInstanceKlass* ik = oop_type->is_instptr()->instance_klass();
3753 for (int i = 0, len = ik->nof_nonstatic_fields(); i < len; i++) {
3754 ciField* field = ik->nonstatic_field_at(i);
3755 if (field->offset_in_bytes() >= TrackedInitializationLimit * HeapWordSize)
3756 continue; // do not bother to track really large numbers of fields
3757 // Find (or create) the alias category for this field:
3758 int fieldidx = C->alias_type(field)->index();
3759 hook_memory_on_init(*this, fieldidx, minit_in, _gvn.transform(new NarrowMemProjNode(init, C->get_adr_type(fieldidx))));
3760 }
3761 }
3762 }
3763
3764 // Cast raw oop to the real thing...
3765 Node* javaoop = new CheckCastPPNode(control(), rawoop, oop_type);
|
1254 }
1255 Node* conv = _gvn.transform( new ConvI2LNode(offset));
1256 Node* mask = _gvn.transform(ConLNode::make((julong) max_juint));
1257 return _gvn.transform( new AndLNode(conv, mask) );
1258 }
1259
1260 Node* GraphKit::ConvL2I(Node* offset) {
1261 // short-circuit a common case
1262 jlong offset_con = find_long_con(offset, (jlong)Type::OffsetBot);
1263 if (offset_con != (jlong)Type::OffsetBot) {
1264 return intcon((int) offset_con);
1265 }
1266 return _gvn.transform( new ConvL2INode(offset));
1267 }
1268
1269 //-------------------------load_object_klass-----------------------------------
1270 Node* GraphKit::load_object_klass(Node* obj) {
1271 // Special-case a fresh allocation to avoid building nodes:
1272 Node* akls = AllocateNode::Ideal_klass(obj, &_gvn);
1273 if (akls != nullptr) return akls;
1274 Node* k_adr = basic_plus_adr(obj, Type::klass_offset());
1275 return _gvn.transform(LoadKlassNode::make(_gvn, immutable_memory(), k_adr, TypeInstPtr::KLASS));
1276 }
1277
1278 //-------------------------load_array_length-----------------------------------
1279 Node* GraphKit::load_array_length(Node* array) {
1280 // Special-case a fresh allocation to avoid building nodes:
1281 AllocateArrayNode* alloc = AllocateArrayNode::Ideal_array_allocation(array);
1282 Node *alen;
1283 if (alloc == nullptr) {
1284 Node *r_adr = basic_plus_adr(array, arrayOopDesc::length_offset_in_bytes());
1285 alen = _gvn.transform( new LoadRangeNode(nullptr, immutable_memory(), r_adr, TypeInt::POS));
1286 } else {
1287 alen = array_ideal_length(alloc, _gvn.type(array)->is_oopptr(), false);
1288 }
1289 return alen;
1290 }
1291
1292 Node* GraphKit::array_ideal_length(AllocateArrayNode* alloc,
1293 const TypeOopPtr* oop_type,
1294 bool replace_length_in_map) {
3725 InitializeNode* init = insert_mem_bar_volatile(Op_Initialize, rawidx,
3726 rawoop)->as_Initialize();
3727 assert(alloc->initialization() == init, "2-way macro link must work");
3728 assert(init ->allocation() == alloc, "2-way macro link must work");
3729 {
3730 // Extract memory strands which may participate in the new object's
3731 // initialization, and source them from the new InitializeNode.
3732 // This will allow us to observe initializations when they occur,
3733 // and link them properly (as a group) to the InitializeNode.
3734 assert(init->in(InitializeNode::Memory) == malloc, "");
3735 MergeMemNode* minit_in = MergeMemNode::make(malloc);
3736 init->set_req(InitializeNode::Memory, minit_in);
3737 record_for_igvn(minit_in); // fold it up later, if possible
3738 Node* minit_out = memory(rawidx);
3739 assert(minit_out->is_Proj() && minit_out->in(0) == init, "");
3740 int mark_idx = C->get_alias_index(oop_type->add_offset(oopDesc::mark_offset_in_bytes()));
3741 // Add an edge in the MergeMem for the header fields so an access to one of those has correct memory state.
3742 // Use one NarrowMemProjNode per slice to properly record the adr type of each slice. The Initialize node will have
3743 // multiple projections as a result.
3744 set_memory(_gvn.transform(new NarrowMemProjNode(init, C->get_adr_type(mark_idx))), mark_idx);
3745 int klass_idx = C->get_alias_index(oop_type->add_offset(Type::klass_offset()));
3746 set_memory(_gvn.transform(new NarrowMemProjNode(init, C->get_adr_type(klass_idx))), klass_idx);
3747 if (oop_type->isa_aryptr()) {
3748 const TypePtr* telemref = oop_type->add_offset(Type::OffsetBot);
3749 int elemidx = C->get_alias_index(telemref);
3750 hook_memory_on_init(*this, elemidx, minit_in, _gvn.transform(new NarrowMemProjNode(init, C->get_adr_type(elemidx))));
3751 } else if (oop_type->isa_instptr()) {
3752 ciInstanceKlass* ik = oop_type->is_instptr()->instance_klass();
3753 for (int i = 0, len = ik->nof_nonstatic_fields(); i < len; i++) {
3754 ciField* field = ik->nonstatic_field_at(i);
3755 if (field->offset_in_bytes() >= TrackedInitializationLimit * HeapWordSize)
3756 continue; // do not bother to track really large numbers of fields
3757 // Find (or create) the alias category for this field:
3758 int fieldidx = C->alias_type(field)->index();
3759 hook_memory_on_init(*this, fieldidx, minit_in, _gvn.transform(new NarrowMemProjNode(init, C->get_adr_type(fieldidx))));
3760 }
3761 }
3762 }
3763
3764 // Cast raw oop to the real thing...
3765 Node* javaoop = new CheckCastPPNode(control(), rawoop, oop_type);
|