31 class GraphKit;
32
33 class ValueTypeBaseNode : public TypeNode {
34 protected:
35 ValueTypeBaseNode(const Type* t, int nb_fields)
36 : TypeNode(t, nb_fields) {
37 init_class_id(Class_ValueTypeBase);
38 Compile::current()->add_value_type(this);
39 }
40
41 enum { Control, // Control input
42 Oop, // Oop of TypeInstPtr
43 Values // Nodes corresponding to values of the value type's fields.
44 // Nodes are connected in increasing order of the index of the field they correspond to.
45 };
46
47 virtual const TypeInstPtr* value_ptr() const = 0;
48 // Get the klass defining the field layout of the value type
49 virtual ciValueKlass* value_klass() const = 0;
50
51 int make_scalar_in_safepoint(Unique_Node_List& worklist, SafePointNode* sfpt, Node* root, PhaseGVN* gvn);
52
53 // Initialize the value type fields with the inputs or outputs of a MultiNode
54 void initialize(GraphKit* kit, MultiNode* multi, ciValueKlass* vk, int base_offset, uint& base_input, bool in);
55
56 const TypePtr* field_adr_type(Node* base, int offset, ciInstanceKlass* holder, PhaseGVN& gvn) const;
57
58 public:
59 // Support for control flow merges
60 bool has_phi_inputs(Node* region);
61 ValueTypeBaseNode* clone_with_phis(PhaseGVN* gvn, Node* region);
62 ValueTypeBaseNode* merge_with(PhaseGVN* gvn, const ValueTypeBaseNode* other, int pnum, bool transform);
63 void add_new_path(Node* region);
64
65 // Get oop for heap allocated value type (may be TypePtr::NULL_PTR)
66 Node* get_oop() const { return in(Oop); }
67 void set_oop(Node* oop) { set_req(Oop, oop); }
68
69 // Value type fields
70 uint field_count() const { return req() - Values; }
71 Node* field_value(uint index) const;
72 Node* field_value_by_offset(int offset, bool recursive = false) const;
73 void set_field_value(uint index, Node* value);
74 void set_field_value_by_offset(int offset, Node* value);
75 int field_offset(uint index) const;
76 ciType* field_type(uint index) const;
77 bool field_is_flattened(uint index) const;
78 bool field_is_flattenable(uint index) const;
79
80 // Replace ValueTypeNodes in debug info at safepoints with SafePointScalarObjectNodes
81 void make_scalar_in_safepoints(Node* root, PhaseGVN* gvn);
82
83 // Store the value type as a flattened (headerless) representation
84 void store_flattened(GraphKit* kit, Node* base, Node* ptr, ciInstanceKlass* holder = NULL, int holder_offset = 0) const;
85 // Store the field values to memory
86 void store(GraphKit* kit, Node* base, Node* ptr, ciInstanceKlass* holder, int holder_offset = 0, bool deoptimize_on_exception = false) const;
87 // Initialize the value type by loading its field values from memory
88 void load(GraphKit* kit, Node* base, Node* ptr, ciInstanceKlass* holder, int holder_offset = 0);
89
90 // Allocates the value type (if not yet allocated)
91 ValueTypeBaseNode* allocate(GraphKit* kit, bool deoptimize_on_exception = false);
92 bool is_allocated(PhaseGVN* phase) const;
93
94 void replace_call_results(GraphKit* kit, Node* call, Compile* C);
95 };
96
97 //------------------------------ValueTypeNode-------------------------------------
98 // Node representing a value type in C2 IR
99 class ValueTypeNode : public ValueTypeBaseNode {
100 friend class ValueTypeBaseNode;
101 friend class ValueTypePtrNode;
|
31 class GraphKit;
32
33 class ValueTypeBaseNode : public TypeNode {
34 protected:
35 ValueTypeBaseNode(const Type* t, int nb_fields)
36 : TypeNode(t, nb_fields) {
37 init_class_id(Class_ValueTypeBase);
38 Compile::current()->add_value_type(this);
39 }
40
41 enum { Control, // Control input
42 Oop, // Oop of TypeInstPtr
43 Values // Nodes corresponding to values of the value type's fields.
44 // Nodes are connected in increasing order of the index of the field they correspond to.
45 };
46
47 virtual const TypeInstPtr* value_ptr() const = 0;
48 // Get the klass defining the field layout of the value type
49 virtual ciValueKlass* value_klass() const = 0;
50
51 int make_scalar_in_safepoint(PhaseIterGVN* igvn, Unique_Node_List& worklist, SafePointNode* sfpt);
52
53 // Initialize the value type fields with the inputs or outputs of a MultiNode
54 void initialize(GraphKit* kit, MultiNode* multi, ciValueKlass* vk, int base_offset, uint& base_input, bool in);
55
56 const TypePtr* field_adr_type(Node* base, int offset, ciInstanceKlass* holder, PhaseGVN& gvn) const;
57
58 public:
59 // Support for control flow merges
60 bool has_phi_inputs(Node* region);
61 ValueTypeBaseNode* clone_with_phis(PhaseGVN* gvn, Node* region);
62 ValueTypeBaseNode* merge_with(PhaseGVN* gvn, const ValueTypeBaseNode* other, int pnum, bool transform);
63 void add_new_path(Node* region);
64
65 // Get oop for heap allocated value type (may be TypePtr::NULL_PTR)
66 Node* get_oop() const { return in(Oop); }
67 void set_oop(Node* oop) { set_req(Oop, oop); }
68
69 // Value type fields
70 uint field_count() const { return req() - Values; }
71 Node* field_value(uint index) const;
72 Node* field_value_by_offset(int offset, bool recursive = false) const;
73 void set_field_value(uint index, Node* value);
74 void set_field_value_by_offset(int offset, Node* value);
75 int field_offset(uint index) const;
76 ciType* field_type(uint index) const;
77 bool field_is_flattened(uint index) const;
78 bool field_is_flattenable(uint index) const;
79
80 // Replace ValueTypeNodes in debug info at safepoints with SafePointScalarObjectNodes
81 void make_scalar_in_safepoints(PhaseIterGVN* igvn);
82
83 // Store the value type as a flattened (headerless) representation
84 void store_flattened(GraphKit* kit, Node* base, Node* ptr, ciInstanceKlass* holder = NULL, int holder_offset = 0) const;
85 // Store the field values to memory
86 void store(GraphKit* kit, Node* base, Node* ptr, ciInstanceKlass* holder, int holder_offset = 0, bool deoptimize_on_exception = false) const;
87 // Initialize the value type by loading its field values from memory
88 void load(GraphKit* kit, Node* base, Node* ptr, ciInstanceKlass* holder, int holder_offset = 0);
89
90 // Allocates the value type (if not yet allocated)
91 ValueTypeBaseNode* allocate(GraphKit* kit, bool deoptimize_on_exception = false);
92 bool is_allocated(PhaseGVN* phase) const;
93
94 void replace_call_results(GraphKit* kit, Node* call, Compile* C);
95 };
96
97 //------------------------------ValueTypeNode-------------------------------------
98 // Node representing a value type in C2 IR
99 class ValueTypeNode : public ValueTypeBaseNode {
100 friend class ValueTypeBaseNode;
101 friend class ValueTypePtrNode;
|