Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/type.hpp
src/share/vm/opto/type.hpp
- changeset 1444
- 03b336640699
- parent 1427
- 6a8ccac44f41
- child 1515
- 7c57aead6d3e
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| 1443:e90521d61f9a | 1444:03b336640699 |
|---|---|
| 166 int higher_equal( const Type *t ) const { return !cmp(meet(t),t); } | 166 int higher_equal( const Type *t ) const { return !cmp(meet(t),t); } |
| 167 | 167 |
| 168 // MEET operation; lower in lattice. | 168 // MEET operation; lower in lattice. |
| 169 const Type *meet( const Type *t ) const; | 169 const Type *meet( const Type *t ) const; |
| 170 // WIDEN: 'widens' for Ints and other range types | 170 // WIDEN: 'widens' for Ints and other range types |
| 171 virtual const Type *widen( const Type *old ) const { return this; } | 171 virtual const Type *widen( const Type *old, const Type* limit ) const { return this; } |
| 172 // NARROW: complement for widen, used by pessimistic phases | 172 // NARROW: complement for widen, used by pessimistic phases |
| 173 virtual const Type *narrow( const Type *old ) const { return this; } | 173 virtual const Type *narrow( const Type *old ) const { return this; } |
| 174 | 174 |
| 175 // DUAL operation: reflect around lattice centerline. Used instead of | 175 // DUAL operation: reflect around lattice centerline. Used instead of |
| 176 // join to ensure my lattice is symmetric up and down. | 176 // join to ensure my lattice is symmetric up and down. |
| 407 | 407 |
| 408 virtual bool is_finite() const; // Has a finite value | 408 virtual bool is_finite() const; // Has a finite value |
| 409 | 409 |
| 410 virtual const Type *xmeet( const Type *t ) const; | 410 virtual const Type *xmeet( const Type *t ) const; |
| 411 virtual const Type *xdual() const; // Compute dual right now. | 411 virtual const Type *xdual() const; // Compute dual right now. |
| 412 virtual const Type *widen( const Type *t ) const; | 412 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
| 413 virtual const Type *narrow( const Type *t ) const; | 413 virtual const Type *narrow( const Type *t ) const; |
| 414 // Do not kill _widen bits. | 414 // Do not kill _widen bits. |
| 415 virtual const Type *filter( const Type *kills ) const; | 415 virtual const Type *filter( const Type *kills ) const; |
| 416 // Convenience common pre-built types. | 416 // Convenience common pre-built types. |
| 417 static const TypeInt *MINUS_1; | 417 static const TypeInt *MINUS_1; |
| 463 | 463 |
| 464 virtual bool is_finite() const; // Has a finite value | 464 virtual bool is_finite() const; // Has a finite value |
| 465 | 465 |
| 466 virtual const Type *xmeet( const Type *t ) const; | 466 virtual const Type *xmeet( const Type *t ) const; |
| 467 virtual const Type *xdual() const; // Compute dual right now. | 467 virtual const Type *xdual() const; // Compute dual right now. |
| 468 virtual const Type *widen( const Type *t ) const; | 468 virtual const Type *widen( const Type *t, const Type* limit_type ) const; |
| 469 virtual const Type *narrow( const Type *t ) const; | 469 virtual const Type *narrow( const Type *t ) const; |
| 470 // Do not kill _widen bits. | 470 // Do not kill _widen bits. |
| 471 virtual const Type *filter( const Type *kills ) const; | 471 virtual const Type *filter( const Type *kills ) const; |
| 472 // Convenience common pre-built types. | 472 // Convenience common pre-built types. |
| 473 static const TypeLong *MINUS_1; | 473 static const TypeLong *MINUS_1; |
