Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/cfgnode.hpp
src/share/vm/opto/cfgnode.hpp
- changeset 8940
- eb9e617d6f64
- parent 8646
- 88235cdca8d7
- child 8945
- 3b6372514697
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| 8926:4df68abf9cd5 | 8940:eb9e617d6f64 |
|---|---|
| 117 // paths to the RegionNode. For speed reasons (to avoid another pass) we | 117 // paths to the RegionNode. For speed reasons (to avoid another pass) we |
| 118 // can turn PhiNodes into copys in-place by NULL'ing out their RegionNode | 118 // can turn PhiNodes into copys in-place by NULL'ing out their RegionNode |
| 119 // input in slot 0. | 119 // input in slot 0. |
| 120 class PhiNode : public TypeNode { | 120 class PhiNode : public TypeNode { |
| 121 const TypePtr* const _adr_type; // non-null only for Type::MEMORY nodes. | 121 const TypePtr* const _adr_type; // non-null only for Type::MEMORY nodes. |
| 122 // The following fields are only used for data PhiNodes to indicate | |
| 123 // that the PhiNode represents the value of a known instance field. | |
| 124 int _inst_mem_id; // Instance memory id (node index of the memory Phi) | |
| 125 const int _inst_id; // Instance id of the memory slice. | 122 const int _inst_id; // Instance id of the memory slice. |
| 126 const int _inst_index; // Alias index of the instance memory slice. | 123 const int _inst_index; // Alias index of the instance memory slice. |
| 127 // Array elements references have the same alias_idx but different offset. | 124 // Array elements references have the same alias_idx but different offset. |
| 128 const int _inst_offset; // Offset of the instance memory slice. | 125 const int _inst_offset; // Offset of the instance memory slice. |
| 129 // Size is bigger to hold the _adr_type field. | 126 // Size is bigger to hold the _adr_type field. |
| 139 enum { Region, // Control input is the Phi's region. | 136 enum { Region, // Control input is the Phi's region. |
| 140 Input // Input values are [1..len) | 137 Input // Input values are [1..len) |
| 141 }; | 138 }; |
| 142 | 139 |
| 143 PhiNode( Node *r, const Type *t, const TypePtr* at = NULL, | 140 PhiNode( Node *r, const Type *t, const TypePtr* at = NULL, |
| 144 const int imid = -1, | |
| 145 const int iid = TypeOopPtr::InstanceTop, | 141 const int iid = TypeOopPtr::InstanceTop, |
| 146 const int iidx = Compile::AliasIdxTop, | 142 const int iidx = Compile::AliasIdxTop, |
| 147 const int ioffs = Type::OffsetTop ) | 143 const int ioffs = Type::OffsetTop ) |
| 148 : TypeNode(t,r->req()), | 144 : TypeNode(t,r->req()), |
| 149 _adr_type(at), | 145 _adr_type(at), |
| 150 _inst_mem_id(imid), | |
| 151 _inst_id(iid), | 146 _inst_id(iid), |
| 152 _inst_index(iidx), | 147 _inst_index(iidx), |
| 153 _inst_offset(ioffs) | 148 _inst_offset(ioffs) |
| 154 { | 149 { |
| 155 init_class_id(Class_Phi); | 150 init_class_id(Class_Phi); |
| 190 int is_diamond_phi(bool check_control_only = false) const; | 185 int is_diamond_phi(bool check_control_only = false) const; |
| 191 virtual int Opcode() const; | 186 virtual int Opcode() const; |
| 192 virtual bool pinned() const { return in(0) != 0; } | 187 virtual bool pinned() const { return in(0) != 0; } |
| 193 virtual const TypePtr *adr_type() const { verify_adr_type(true); return _adr_type; } | 188 virtual const TypePtr *adr_type() const { verify_adr_type(true); return _adr_type; } |
| 194 | 189 |
| 195 void set_inst_mem_id(int inst_mem_id) { _inst_mem_id = inst_mem_id; } | |
| 196 const int inst_mem_id() const { return _inst_mem_id; } | |
| 197 const int inst_id() const { return _inst_id; } | 190 const int inst_id() const { return _inst_id; } |
| 198 const int inst_index() const { return _inst_index; } | 191 const int inst_index() const { return _inst_index; } |
| 199 const int inst_offset() const { return _inst_offset; } | 192 const int inst_offset() const { return _inst_offset; } |
| 200 bool is_same_inst_field(const Type* tp, int mem_id, int id, int index, int offset) { | 193 bool is_same_inst_field(const Type* tp, int id, int index, int offset) { |
| 201 return type()->basic_type() == tp->basic_type() && | 194 return type()->basic_type() == tp->basic_type() && |
| 202 inst_mem_id() == mem_id && | |
| 203 inst_id() == id && | 195 inst_id() == id && |
| 204 inst_index() == index && | 196 inst_index() == index && |
| 205 inst_offset() == offset && | 197 inst_offset() == offset && |
| 206 type()->higher_equal(tp); | 198 type()->higher_equal(tp); |
| 207 } | 199 } |
