Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/connode.hpp
src/share/vm/opto/connode.hpp
- changeset 561
- 72f4a668df19
- parent 559
- b130b98db9cf
- child 598
- 885ed790ecf0
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| 560:d942c7e64bd9 | 561:72f4a668df19 |
|---|---|
| 237 | 237 |
| 238 //------------------------------CastPPNode------------------------------------- | 238 //------------------------------CastPPNode------------------------------------- |
| 239 // cast pointer to pointer (different type) | 239 // cast pointer to pointer (different type) |
| 240 class CastPPNode: public ConstraintCastNode { | 240 class CastPPNode: public ConstraintCastNode { |
| 241 public: | 241 public: |
| 242 CastPPNode (Node *n, const Type *t ): ConstraintCastNode(n, t) { | 242 CastPPNode (Node *n, const Type *t ): ConstraintCastNode(n, t) {} |
| 243 // Only CastPP is safe. CastII can cause optimizer loops. | |
| 244 init_flags(Flag_is_dead_loop_safe); | |
| 245 } | |
| 246 virtual int Opcode() const; | 243 virtual int Opcode() const; |
| 247 virtual uint ideal_reg() const { return Op_RegP; } | 244 virtual uint ideal_reg() const { return Op_RegP; } |
| 248 virtual Node *Ideal_DU_postCCP( PhaseCCP * ); | 245 virtual Node *Ideal_DU_postCCP( PhaseCCP * ); |
| 249 }; | 246 }; |
| 250 | 247 |
| 252 // for _checkcast, cast pointer to pointer (different type), without JOIN, | 249 // for _checkcast, cast pointer to pointer (different type), without JOIN, |
| 253 class CheckCastPPNode: public TypeNode { | 250 class CheckCastPPNode: public TypeNode { |
| 254 public: | 251 public: |
| 255 CheckCastPPNode( Node *c, Node *n, const Type *t ) : TypeNode(t,2) { | 252 CheckCastPPNode( Node *c, Node *n, const Type *t ) : TypeNode(t,2) { |
| 256 init_class_id(Class_CheckCastPP); | 253 init_class_id(Class_CheckCastPP); |
| 257 init_flags(Flag_is_dead_loop_safe); | |
| 258 init_req(0, c); | 254 init_req(0, c); |
| 259 init_req(1, n); | 255 init_req(1, n); |
| 260 } | 256 } |
| 257 | |
| 261 virtual Node *Identity( PhaseTransform *phase ); | 258 virtual Node *Identity( PhaseTransform *phase ); |
| 262 virtual const Type *Value( PhaseTransform *phase ) const; | 259 virtual const Type *Value( PhaseTransform *phase ) const; |
| 263 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | 260 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); |
| 264 virtual int Opcode() const; | 261 virtual int Opcode() const; |
| 265 virtual uint ideal_reg() const { return Op_RegP; } | 262 virtual uint ideal_reg() const { return Op_RegP; } |
