530 // in the current pass, leaving the put_code set to zero will
531 // cause the next put instruction to reresolve.
532 Bytecodes::Code put_code = (Bytecodes::Code)0;
533
534 // We also need to delay resolving getstatic instructions until the
535 // class is intitialized. This is required so that access to the static
536 // field will call the initialization function every time until the class
537 // is completely initialized ala. in 2.17.5 in JVM Specification.
538 instanceKlass *klass = instanceKlass::cast(info.klass()->as_klassOop());
539 bool uninitialized_static = ((bytecode == Bytecodes::_getstatic || bytecode == Bytecodes::_putstatic) &&
540 !klass->is_initialized());
541 Bytecodes::Code get_code = (Bytecodes::Code)0;
542
543 if (!uninitialized_static) {
544 get_code = ((is_static) ? Bytecodes::_getstatic : Bytecodes::_getfield);
545 if (is_put || !info.access_flags().is_final()) {
546 put_code = ((is_static) ? Bytecodes::_putstatic : Bytecodes::_putfield);
547 }
548 }
549
550 if (is_put && !is_static && klass->is_subclass_of(SystemDictionary::CallSite_klass()) && (info.name() == vmSymbols::target_name())) {
551 const jint direction = frame::interpreter_frame_expression_stack_direction();
552 Handle call_site (THREAD, *((oop*) thread->last_frame().interpreter_frame_tos_at(-1 * direction)));
553 Handle method_handle(THREAD, *((oop*) thread->last_frame().interpreter_frame_tos_at( 0 * direction)));
554 assert(call_site ->is_a(SystemDictionary::CallSite_klass()), "must be");
555 assert(method_handle->is_a(SystemDictionary::MethodHandle_klass()), "must be");
556
557 {
558 // Walk all nmethods depending on this call site.
559 MutexLocker mu(Compile_lock, thread);
560 Universe::flush_dependents_on(call_site, method_handle);
561 }
562
563 // Don't allow fast path for setting CallSite.target and sub-classes.
564 put_code = (Bytecodes::Code) 0;
565 }
566
567 cache_entry(thread)->set_field(
568 get_code,
569 put_code,
570 info.klass(),
571 info.field_index(),
572 info.field_offset(),
573 state,
574 info.access_flags().is_final(),
575 info.access_flags().is_volatile()
576 );
577 IRT_END
578
579
580 //------------------------------------------------------------------------------------------------------------------------
581 // Synchronization
582 //
583 // The interpreter's synchronization code is factored out so that it can
584 // be shared by method invocation and synchronized blocks.
585 //%note synchronization_3
586
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530 // in the current pass, leaving the put_code set to zero will
531 // cause the next put instruction to reresolve.
532 Bytecodes::Code put_code = (Bytecodes::Code)0;
533
534 // We also need to delay resolving getstatic instructions until the
535 // class is intitialized. This is required so that access to the static
536 // field will call the initialization function every time until the class
537 // is completely initialized ala. in 2.17.5 in JVM Specification.
538 instanceKlass *klass = instanceKlass::cast(info.klass()->as_klassOop());
539 bool uninitialized_static = ((bytecode == Bytecodes::_getstatic || bytecode == Bytecodes::_putstatic) &&
540 !klass->is_initialized());
541 Bytecodes::Code get_code = (Bytecodes::Code)0;
542
543 if (!uninitialized_static) {
544 get_code = ((is_static) ? Bytecodes::_getstatic : Bytecodes::_getfield);
545 if (is_put || !info.access_flags().is_final()) {
546 put_code = ((is_static) ? Bytecodes::_putstatic : Bytecodes::_putfield);
547 }
548 }
549
550 cache_entry(thread)->set_field(
551 get_code,
552 put_code,
553 info.klass(),
554 info.field_index(),
555 info.field_offset(),
556 state,
557 info.access_flags().is_final(),
558 info.access_flags().is_volatile()
559 );
560 IRT_END
561
562
563 //------------------------------------------------------------------------------------------------------------------------
564 // Synchronization
565 //
566 // The interpreter's synchronization code is factored out so that it can
567 // be shared by method invocation and synchronized blocks.
568 //%note synchronization_3
569
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