58 Node* obj,
59 Node* adr,
60 uint alias_idx,
61 Node* val,
62 const TypeOopPtr* val_type,
63 Node* pre_val,
64 BasicType bt) const;
65
66 void shenandoah_write_barrier_pre(GraphKit* kit,
67 bool do_load,
68 Node* obj,
69 Node* adr,
70 uint alias_idx,
71 Node* val,
72 const TypeOopPtr* val_type,
73 Node* pre_val,
74 BasicType bt) const;
75
76 Node* shenandoah_iu_barrier(GraphKit* kit, Node* obj) const;
77
78 void insert_pre_barrier(GraphKit* kit, Node* base_oop, Node* offset,
79 Node* pre_val, bool need_mem_bar) const;
80
81 static bool clone_needs_barrier(Node* src, PhaseGVN& gvn);
82
83 protected:
84 virtual Node* load_at_resolved(C2Access& access, const Type* val_type) const;
85 virtual Node* store_at_resolved(C2Access& access, C2AccessValue& val) const;
86 virtual Node* atomic_cmpxchg_val_at_resolved(C2AtomicParseAccess& access, Node* expected_val,
87 Node* new_val, const Type* val_type) const;
88 virtual Node* atomic_cmpxchg_bool_at_resolved(C2AtomicParseAccess& access, Node* expected_val,
89 Node* new_val, const Type* value_type) const;
90 virtual Node* atomic_xchg_at_resolved(C2AtomicParseAccess& access, Node* new_val, const Type* val_type) const;
91
92 public:
93 static ShenandoahBarrierSetC2* bsc2();
94
95 static bool is_shenandoah_wb_pre_call(Node* call);
96 static bool is_shenandoah_lrb_call(Node* call);
97 static bool is_shenandoah_marking_if(PhaseValues* phase, Node* n);
98 static bool is_shenandoah_state_load(Node* n);
99 static bool has_only_shenandoah_wb_pre_uses(Node* n);
100
101 ShenandoahBarrierSetC2State* state() const;
102
103 static const TypeFunc* write_ref_field_pre_entry_Type();
104 static const TypeFunc* shenandoah_clone_barrier_Type();
105 static const TypeFunc* shenandoah_load_reference_barrier_Type();
106 virtual bool has_load_barrier_nodes() const { return true; }
107
108 // This is the entry-point for the backend to perform accesses through the Access API.
109 virtual void clone_at_expansion(PhaseMacroExpand* phase, ArrayCopyNode* ac) const;
110
111 // These are general helper methods used by C2
112 virtual bool array_copy_requires_gc_barriers(bool tightly_coupled_alloc, BasicType type, bool is_clone, bool is_clone_instance, ArrayCopyPhase phase) const;
113
114 // Support for GC barriers emitted during parsing
115 virtual bool is_gc_pre_barrier_node(Node* node) const;
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58 Node* obj,
59 Node* adr,
60 uint alias_idx,
61 Node* val,
62 const TypeOopPtr* val_type,
63 Node* pre_val,
64 BasicType bt) const;
65
66 void shenandoah_write_barrier_pre(GraphKit* kit,
67 bool do_load,
68 Node* obj,
69 Node* adr,
70 uint alias_idx,
71 Node* val,
72 const TypeOopPtr* val_type,
73 Node* pre_val,
74 BasicType bt) const;
75
76 Node* shenandoah_iu_barrier(GraphKit* kit, Node* obj) const;
77
78 Node* byte_map_base_node(GraphKit* kit) const;
79
80 void post_barrier(GraphKit* kit,
81 Node* ctl,
82 Node* store,
83 Node* obj,
84 Node* adr,
85 uint adr_idx,
86 Node* val,
87 BasicType bt,
88 bool use_precise) const;
89
90 void insert_pre_barrier(GraphKit* kit, Node* base_oop, Node* offset,
91 Node* pre_val, bool need_mem_bar) const;
92
93 static bool clone_needs_barrier(Node* src, PhaseGVN& gvn);
94
95 protected:
96 virtual Node* load_at_resolved(C2Access& access, const Type* val_type) const;
97 virtual Node* store_at_resolved(C2Access& access, C2AccessValue& val) const;
98 virtual Node* atomic_cmpxchg_val_at_resolved(C2AtomicParseAccess& access, Node* expected_val,
99 Node* new_val, const Type* val_type) const;
100 virtual Node* atomic_cmpxchg_bool_at_resolved(C2AtomicParseAccess& access, Node* expected_val,
101 Node* new_val, const Type* value_type) const;
102 virtual Node* atomic_xchg_at_resolved(C2AtomicParseAccess& access, Node* new_val, const Type* val_type) const;
103
104 public:
105 static ShenandoahBarrierSetC2* bsc2();
106
107 static bool is_shenandoah_wb_pre_call(Node* call);
108 static bool is_shenandoah_clone_call(Node* call);
109 static bool is_shenandoah_lrb_call(Node* call);
110 static bool is_shenandoah_marking_if(PhaseValues* phase, Node* n);
111 static bool is_shenandoah_state_load(Node* n);
112 static bool has_only_shenandoah_wb_pre_uses(Node* n);
113
114 ShenandoahBarrierSetC2State* state() const;
115
116 static const TypeFunc* write_ref_field_pre_entry_Type();
117 static const TypeFunc* shenandoah_clone_barrier_Type();
118 static const TypeFunc* shenandoah_load_reference_barrier_Type();
119 virtual bool has_load_barrier_nodes() const { return true; }
120
121 // This is the entry-point for the backend to perform accesses through the Access API.
122 virtual void clone_at_expansion(PhaseMacroExpand* phase, ArrayCopyNode* ac) const;
123
124 // These are general helper methods used by C2
125 virtual bool array_copy_requires_gc_barriers(bool tightly_coupled_alloc, BasicType type, bool is_clone, bool is_clone_instance, ArrayCopyPhase phase) const;
126
127 // Support for GC barriers emitted during parsing
128 virtual bool is_gc_pre_barrier_node(Node* node) const;
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