1653 rawmem = new ProjNode(call, TypeFunc::Memory);
1654 transform_later(rawmem);
1655 }
1656 }
1657
1658 // Helper for PhaseMacroExpand::expand_allocate_common.
1659 // Initializes the newly-allocated storage.
1660 Node*
1661 PhaseMacroExpand::initialize_object(AllocateNode* alloc,
1662 Node* control, Node* rawmem, Node* object,
1663 Node* klass_node, Node* length,
1664 Node* size_in_bytes) {
1665 InitializeNode* init = alloc->initialization();
1666 // Store the klass & mark bits
1667 Node* mark_node = alloc->make_ideal_mark(&_igvn, object, control, rawmem);
1668 if (!mark_node->is_Con()) {
1669 transform_later(mark_node);
1670 }
1671 rawmem = make_store(control, rawmem, object, oopDesc::mark_offset_in_bytes(), mark_node, TypeX_X->basic_type());
1672
1673 rawmem = make_store(control, rawmem, object, oopDesc::klass_offset_in_bytes(), klass_node, T_METADATA);
1674 int header_size = alloc->minimum_header_size(); // conservatively small
1675
1676 // Array length
1677 if (length != NULL) { // Arrays need length field
1678 rawmem = make_store(control, rawmem, object, arrayOopDesc::length_offset_in_bytes(), length, T_INT);
1679 // conservatively small header size:
1680 header_size = arrayOopDesc::base_offset_in_bytes(T_BYTE);
1681 ciKlass* k = _igvn.type(klass_node)->is_klassptr()->klass();
1682 if (k->is_array_klass()) // we know the exact header size in most cases:
1683 header_size = Klass::layout_helper_header_size(k->layout_helper());
1684 }
1685
1686 // Clear the object body, if necessary.
1687 if (init == NULL) {
1688 // The init has somehow disappeared; be cautious and clear everything.
1689 //
1690 // This can happen if a node is allocated but an uncommon trap occurs
1691 // immediately. In this case, the Initialize gets associated with the
1692 // trap, and may be placed in a different (outer) loop, if the Allocate
1693 // is in a loop. If (this is rare) the inner loop gets unrolled, then
|
1653 rawmem = new ProjNode(call, TypeFunc::Memory);
1654 transform_later(rawmem);
1655 }
1656 }
1657
1658 // Helper for PhaseMacroExpand::expand_allocate_common.
1659 // Initializes the newly-allocated storage.
1660 Node*
1661 PhaseMacroExpand::initialize_object(AllocateNode* alloc,
1662 Node* control, Node* rawmem, Node* object,
1663 Node* klass_node, Node* length,
1664 Node* size_in_bytes) {
1665 InitializeNode* init = alloc->initialization();
1666 // Store the klass & mark bits
1667 Node* mark_node = alloc->make_ideal_mark(&_igvn, object, control, rawmem);
1668 if (!mark_node->is_Con()) {
1669 transform_later(mark_node);
1670 }
1671 rawmem = make_store(control, rawmem, object, oopDesc::mark_offset_in_bytes(), mark_node, TypeX_X->basic_type());
1672
1673 if (!UseCompactObjectHeaders) {
1674 rawmem = make_store(control, rawmem, object, oopDesc::klass_offset_in_bytes(), klass_node, T_METADATA);
1675 }
1676
1677 int header_size = alloc->minimum_header_size(); // conservatively small
1678
1679 // Array length
1680 if (length != NULL) { // Arrays need length field
1681 rawmem = make_store(control, rawmem, object, arrayOopDesc::length_offset_in_bytes(), length, T_INT);
1682 // conservatively small header size:
1683 header_size = arrayOopDesc::base_offset_in_bytes(T_BYTE);
1684 ciKlass* k = _igvn.type(klass_node)->is_klassptr()->klass();
1685 if (k->is_array_klass()) // we know the exact header size in most cases:
1686 header_size = Klass::layout_helper_header_size(k->layout_helper());
1687 }
1688
1689 // Clear the object body, if necessary.
1690 if (init == NULL) {
1691 // The init has somehow disappeared; be cautious and clear everything.
1692 //
1693 // This can happen if a node is allocated but an uncommon trap occurs
1694 // immediately. In this case, the Initialize gets associated with the
1695 // trap, and may be placed in a different (outer) loop, if the Allocate
1696 // is in a loop. If (this is rare) the inner loop gets unrolled, then
|