Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/ci/ciObjectFactory.cpp
src/share/vm/ci/ciObjectFactory.cpp
- changeset 6992
- 2c6ef90f030a
- parent 6198
- 55fb97c4c58d
- child 7074
- 833b0f92429a
equal
deleted
inserted
replaced
| 6991:882004b9e7e1 | 6992:2c6ef90f030a |
|---|---|
| 44 #include "gc_interface/collectedHeap.inline.hpp" | 44 #include "gc_interface/collectedHeap.inline.hpp" |
| 45 #include "memory/allocation.inline.hpp" | 45 #include "memory/allocation.inline.hpp" |
| 46 #include "oops/oop.inline.hpp" | 46 #include "oops/oop.inline.hpp" |
| 47 #include "oops/oop.inline2.hpp" | 47 #include "oops/oop.inline2.hpp" |
| 48 #include "runtime/fieldType.hpp" | 48 #include "runtime/fieldType.hpp" |
| 49 #if INCLUDE_ALL_GCS | |
| 50 # include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp" | |
| 51 #endif | |
| 49 | 52 |
| 50 // ciObjectFactory | 53 // ciObjectFactory |
| 51 // | 54 // |
| 52 // This class handles requests for the creation of new instances | 55 // This class handles requests for the creation of new instances |
| 53 // of ciObject and its subclasses. It contains a caching mechanism | 56 // of ciObject and its subclasses. It contains a caching mechanism |
| 370 } | 373 } |
| 371 | 374 |
| 372 // The oop is of some type not supported by the compiler interface. | 375 // The oop is of some type not supported by the compiler interface. |
| 373 ShouldNotReachHere(); | 376 ShouldNotReachHere(); |
| 374 return NULL; | 377 return NULL; |
| 378 } | |
| 379 | |
| 380 // ------------------------------------------------------------------ | |
| 381 // ciObjectFactory::ensure_metadata_alive | |
| 382 // | |
| 383 // Ensure that the metadata wrapped by the ciMetadata is kept alive by GC. | |
| 384 // This is primarily useful for metadata which is considered as weak roots | |
| 385 // by the GC but need to be strong roots if reachable from a current compilation. | |
| 386 // | |
| 387 void ciObjectFactory::ensure_metadata_alive(ciMetadata* m) { | |
| 388 ASSERT_IN_VM; // We're handling raw oops here. | |
| 389 | |
| 390 #if INCLUDE_ALL_GCS | |
| 391 if (!UseG1GC) { | |
| 392 return; | |
| 393 } | |
| 394 Klass* metadata_owner_klass; | |
| 395 if (m->is_klass()) { | |
| 396 metadata_owner_klass = m->as_klass()->get_Klass(); | |
| 397 } else if (m->is_method()) { | |
| 398 metadata_owner_klass = m->as_method()->get_Method()->constants()->pool_holder(); | |
| 399 } else { | |
| 400 fatal("Not implemented for other types of metadata"); | |
| 401 } | |
| 402 | |
| 403 oop metadata_holder = metadata_owner_klass->klass_holder(); | |
| 404 if (metadata_holder != NULL) { | |
| 405 G1SATBCardTableModRefBS::enqueue(metadata_holder); | |
| 406 } | |
| 407 | |
| 408 #endif | |
| 375 } | 409 } |
| 376 | 410 |
| 377 //------------------------------------------------------------------ | 411 //------------------------------------------------------------------ |
| 378 // ciObjectFactory::get_unloaded_method | 412 // ciObjectFactory::get_unloaded_method |
| 379 // | 413 // |
