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comparison src/share/vm/c1/c1_Runtime1.cpp @ 3714:b648304ba4ff

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Change Graal monitor enter and exit from BasicObjectLock to BasicLock
author Christian Wimmer <christian.wimmer@oracle.com>
date Tue, 13 Dec 2011 21:17:46 -0800
parents bc95d122df79
children 82f88223fcff
comparison
equal deleted inserted replaced
3713:d6a0c46a73b2 3714:b648304ba4ff
653 653
654 JRT_ENTRY(void, Runtime1::throw_incompatible_class_change_error(JavaThread* thread)) 654 JRT_ENTRY(void, Runtime1::throw_incompatible_class_change_error(JavaThread* thread))
655 NOT_PRODUCT(_throw_incompatible_class_change_error_count++;) 655 NOT_PRODUCT(_throw_incompatible_class_change_error_count++;)
656 ResourceMark rm(thread); 656 ResourceMark rm(thread);
657 SharedRuntime::throw_and_post_jvmti_exception(thread, vmSymbols::java_lang_IncompatibleClassChangeError()); 657 SharedRuntime::throw_and_post_jvmti_exception(thread, vmSymbols::java_lang_IncompatibleClassChangeError());
658 JRT_END
659
660
661 JRT_ENTRY_NO_ASYNC(void, Runtime1::graal_monitorenter(JavaThread* thread, oopDesc* obj, BasicLock* lock))
662 NOT_PRODUCT(_monitorenter_slowcase_cnt++;)
663 #ifdef ASSERT
664 if (TraceGraal >= 3) {
665 tty->print_cr("entered locking slow case with obj=" INTPTR_FORMAT " and lock= " INTPTR_FORMAT, obj, lock);
666 }
667 if (PrintBiasedLockingStatistics) {
668 Atomic::inc(BiasedLocking::slow_path_entry_count_addr());
669 }
670 #endif
671 Handle h_obj(thread, obj);
672 assert(h_obj()->is_oop(), "must be NULL or an object");
673 if (UseBiasedLocking) {
674 // Retry fast entry if bias is revoked to avoid unnecessary inflation
675 ObjectSynchronizer::fast_enter(h_obj, lock, true, CHECK);
676 } else {
677 if (UseFastLocking) {
678 // When using fast locking, the compiled code has already tried the fast case
679 ObjectSynchronizer::slow_enter(h_obj, lock, THREAD);
680 } else {
681 ObjectSynchronizer::fast_enter(h_obj, lock, false, THREAD);
682 }
683 }
684 #ifdef ASSERT
685 if (TraceGraal >= 3) {
686 tty->print_cr("exiting locking");
687 lock->lock()->print_on(tty);
688 tty->print_cr("");
689 tty->print_cr("done");
690 }
691 #endif
692 JRT_END
693
694
695 JRT_LEAF(void, Runtime1::graal_monitorexit(JavaThread* thread, oopDesc* obj, BasicLock* lock))
696 NOT_PRODUCT(_monitorexit_slowcase_cnt++;)
697 assert(thread == JavaThread::current(), "threads must correspond");
698 assert(thread->last_Java_sp(), "last_Java_sp must be set");
699 // monitorexit is non-blocking (leaf routine) => no exceptions can be thrown
700 EXCEPTION_MARK;
701
702 #ifdef DEBUG
703 if (!obj->is_oop()) {
704 ResetNoHandleMark rhm;
705 nmethod* method = thread->last_frame().cb()->as_nmethod_or_null();
706 if (method != NULL) {
707 tty->print_cr("ERROR in monitorexit in method %s wrong obj " INTPTR_FORMAT, method->name(), obj);
708 }
709 thread->print_stack_on(tty);
710 assert(false, "invalid lock object pointer dected");
711 }
712 #endif
713
714 if (UseFastLocking) {
715 // When using fast locking, the compiled code has already tried the fast case
716 ObjectSynchronizer::slow_exit(obj, lock, THREAD);
717 } else {
718 ObjectSynchronizer::fast_exit(obj, lock, THREAD);
719 }
658 JRT_END 720 JRT_END
659 721
660 722
661 JRT_ENTRY_NO_ASYNC(void, Runtime1::monitorenter(JavaThread* thread, oopDesc* obj, BasicObjectLock* lock)) 723 JRT_ENTRY_NO_ASYNC(void, Runtime1::monitorenter(JavaThread* thread, oopDesc* obj, BasicObjectLock* lock))
662 NOT_PRODUCT(_monitorenter_slowcase_cnt++;) 724 NOT_PRODUCT(_monitorenter_slowcase_cnt++;)