Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/sparc/vm/c1_CodeStubs_sparc.cpp
src/cpu/sparc/vm/c1_CodeStubs_sparc.cpp
- changeset 4002
- 09aad8452938
- parent 3526
- a79cb7c55012
- child 4037
- da91efe96a93
equal
deleted
inserted
replaced
| 4001:006050192a5a | 4002:09aad8452938 |
|---|---|
| 433 __ br(Assembler::always, false, Assembler::pt, _continuation); | 433 __ br(Assembler::always, false, Assembler::pt, _continuation); |
| 434 __ delayed()->nop(); | 434 __ delayed()->nop(); |
| 435 | 435 |
| 436 } | 436 } |
| 437 | 437 |
| 438 void G1UnsafeGetObjSATBBarrierStub::emit_code(LIR_Assembler* ce) { | |
| 439 // At this point we know that offset == referent_offset. | |
| 440 // | |
| 441 // So we might have to emit: | |
| 442 // if (src == null) goto continuation. | |
| 443 // | |
| 444 // and we definitely have to emit: | |
| 445 // if (klass(src).reference_type == REF_NONE) goto continuation | |
| 446 // if (!marking_active) goto continuation | |
| 447 // if (pre_val == null) goto continuation | |
| 448 // call pre_barrier(pre_val) | |
| 449 // goto continuation | |
| 450 // | |
| 451 __ bind(_entry); | |
| 452 | |
| 453 assert(src()->is_register(), "sanity"); | |
| 454 Register src_reg = src()->as_register(); | |
| 455 | |
| 456 if (gen_src_check()) { | |
| 457 // The original src operand was not a constant. | |
| 458 // Generate src == null? | |
| 459 if (__ is_in_wdisp16_range(_continuation)) { | |
| 460 __ br_null(src_reg, /*annul*/false, Assembler::pt, _continuation); | |
| 461 } else { | |
| 462 __ cmp(src_reg, G0); | |
| 463 __ brx(Assembler::equal, false, Assembler::pt, _continuation); | |
| 464 } | |
| 465 __ delayed()->nop(); | |
| 466 } | |
| 467 | |
| 468 // Generate src->_klass->_reference_type() == REF_NONE)? | |
| 469 assert(tmp()->is_register(), "sanity"); | |
| 470 Register tmp_reg = tmp()->as_register(); | |
| 471 | |
| 472 __ load_klass(src_reg, tmp_reg); | |
| 473 | |
| 474 Address ref_type_adr(tmp_reg, instanceKlass::reference_type_offset()); | |
| 475 __ ldub(ref_type_adr, tmp_reg); | |
| 476 | |
| 477 // _reference_type field is of type ReferenceType (enum) | |
| 478 assert(REF_NONE == 0, "check this code"); | |
| 479 __ cmp_zero_and_br(Assembler::equal, tmp_reg, _continuation, /*annul*/false, Assembler::pt); | |
| 480 __ delayed()->nop(); | |
| 481 | |
| 482 // Is marking active? | |
| 483 assert(thread()->is_register(), "precondition"); | |
| 484 Register thread_reg = thread()->as_pointer_register(); | |
| 485 | |
| 486 Address in_progress(thread_reg, in_bytes(JavaThread::satb_mark_queue_offset() + | |
| 487 PtrQueue::byte_offset_of_active())); | |
| 488 | |
| 489 if (in_bytes(PtrQueue::byte_width_of_active()) == 4) { | |
| 490 __ ld(in_progress, tmp_reg); | |
| 491 } else { | |
| 492 assert(in_bytes(PtrQueue::byte_width_of_active()) == 1, "Assumption"); | |
| 493 __ ldsb(in_progress, tmp_reg); | |
| 494 } | |
| 495 | |
| 496 __ cmp_zero_and_br(Assembler::equal, tmp_reg, _continuation, /*annul*/false, Assembler::pt); | |
| 497 __ delayed()->nop(); | |
| 498 | |
| 499 // val == null? | |
| 500 assert(val()->is_register(), "Precondition."); | |
| 501 Register val_reg = val()->as_register(); | |
| 502 | |
| 503 if (__ is_in_wdisp16_range(_continuation)) { | |
| 504 __ br_null(val_reg, /*annul*/false, Assembler::pt, _continuation); | |
| 505 } else { | |
| 506 __ cmp(val_reg, G0); | |
| 507 __ brx(Assembler::equal, false, Assembler::pt, _continuation); | |
| 508 } | |
| 509 __ delayed()->nop(); | |
| 510 | |
| 511 __ call(Runtime1::entry_for(Runtime1::Runtime1::g1_pre_barrier_slow_id)); | |
| 512 __ delayed()->mov(val_reg, G4); | |
| 513 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
| 514 __ delayed()->nop(); | |
| 515 } | |
| 516 | |
| 517 jbyte* G1PostBarrierStub::_byte_map_base = NULL; | 438 jbyte* G1PostBarrierStub::_byte_map_base = NULL; |
| 518 | 439 |
| 519 jbyte* G1PostBarrierStub::byte_map_base_slow() { | 440 jbyte* G1PostBarrierStub::byte_map_base_slow() { |
| 520 BarrierSet* bs = Universe::heap()->barrier_set(); | 441 BarrierSet* bs = Universe::heap()->barrier_set(); |
| 521 assert(bs->is_a(BarrierSet::G1SATBCTLogging), | 442 assert(bs->is_a(BarrierSet::G1SATBCTLogging), |
