Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/utilities/globalDefinitions.hpp
src/share/vm/utilities/globalDefinitions.hpp
- changeset 5578
- 4c84d351cca9
- parent 5529
- e5003079dfa5
- child 5784
- 190899198332
- child 5862
- 82af7d7a0128
- child 6462
- e2722a66aba7
equal
deleted
inserted
replaced
| 5576:badf4244ceae | 5578:4c84d351cca9 |
|---|---|
| 400 // for use in places like enum definitions that require compile-time constant | 400 // for use in places like enum definitions that require compile-time constant |
| 401 // expressions and a function for all other places so as to get type checking. | 401 // expressions and a function for all other places so as to get type checking. |
| 402 | 402 |
| 403 #define align_size_up_(size, alignment) (((size) + ((alignment) - 1)) & ~((alignment) - 1)) | 403 #define align_size_up_(size, alignment) (((size) + ((alignment) - 1)) & ~((alignment) - 1)) |
| 404 | 404 |
| 405 inline bool is_size_aligned(size_t size, size_t alignment) { | |
| 406 return align_size_up_(size, alignment) == size; | |
| 407 } | |
| 408 | |
| 409 inline bool is_ptr_aligned(void* ptr, size_t alignment) { | |
| 410 return align_size_up_((intptr_t)ptr, (intptr_t)alignment) == (intptr_t)ptr; | |
| 411 } | |
| 412 | |
| 405 inline intptr_t align_size_up(intptr_t size, intptr_t alignment) { | 413 inline intptr_t align_size_up(intptr_t size, intptr_t alignment) { |
| 406 return align_size_up_(size, alignment); | 414 return align_size_up_(size, alignment); |
| 407 } | 415 } |
| 408 | 416 |
| 409 #define align_size_down_(size, alignment) ((size) & ~((alignment) - 1)) | 417 #define align_size_down_(size, alignment) ((size) & ~((alignment) - 1)) |
| 411 inline intptr_t align_size_down(intptr_t size, intptr_t alignment) { | 419 inline intptr_t align_size_down(intptr_t size, intptr_t alignment) { |
| 412 return align_size_down_(size, alignment); | 420 return align_size_down_(size, alignment); |
| 413 } | 421 } |
| 414 | 422 |
| 415 #define is_size_aligned_(size, alignment) ((size) == (align_size_up_(size, alignment))) | 423 #define is_size_aligned_(size, alignment) ((size) == (align_size_up_(size, alignment))) |
| 424 | |
| 425 inline void* align_ptr_up(void* ptr, size_t alignment) { | |
| 426 return (void*)align_size_up((intptr_t)ptr, (intptr_t)alignment); | |
| 427 } | |
| 428 | |
| 429 inline void* align_ptr_down(void* ptr, size_t alignment) { | |
| 430 return (void*)align_size_down((intptr_t)ptr, (intptr_t)alignment); | |
| 431 } | |
| 416 | 432 |
| 417 // Align objects by rounding up their size, in HeapWord units. | 433 // Align objects by rounding up their size, in HeapWord units. |
| 418 | 434 |
| 419 #define align_object_size_(size) align_size_up_(size, MinObjAlignment) | 435 #define align_object_size_(size) align_size_up_(size, MinObjAlignment) |
| 420 | 436 |
