734 // Install compiled code. Instantly it can execute.
735 void methodOopDesc::set_code(methodHandle mh, nmethod *code) {
736 assert( code, "use clear_code to remove code" );
737 assert( mh->check_code(), "" );
738
739 guarantee(mh->adapter() != NULL, "Adapter blob must already exist!");
740
741 // These writes must happen in this order, because the interpreter will
742 // directly jump to from_interpreted_entry which jumps to an i2c adapter
743 // which jumps to _from_compiled_entry.
744 mh->_code = code; // Assign before allowing compiled code to exec
745
746 int comp_level = code->comp_level();
747 // In theory there could be a race here. In practice it is unlikely
748 // and not worth worrying about.
749 if (comp_level > mh->highest_tier_compile()) {
750 mh->set_highest_tier_compile(comp_level);
751 }
752
753 OrderAccess::storestore();
754 mh->_from_compiled_entry = code->verified_entry_point();
755 OrderAccess::storestore();
756 // Instantly compiled code can execute.
757 mh->_from_interpreted_entry = mh->get_i2c_entry();
758
759 }
760
761
762 bool methodOopDesc::is_overridden_in(klassOop k) const {
763 instanceKlass* ik = instanceKlass::cast(k);
764
765 if (ik->is_interface()) return false;
766
767 // If method is an interface, we skip it - except if it
768 // is a miranda method
769 if (instanceKlass::cast(method_holder())->is_interface()) {
770 // Check that method is not a miranda method
771 if (ik->lookup_method(name(), signature()) == NULL) {
772 // No implementation exist - so miranda method
773 return false;
774 }
775 return true;
776 }
777
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734 // Install compiled code. Instantly it can execute.
735 void methodOopDesc::set_code(methodHandle mh, nmethod *code) {
736 assert( code, "use clear_code to remove code" );
737 assert( mh->check_code(), "" );
738
739 guarantee(mh->adapter() != NULL, "Adapter blob must already exist!");
740
741 // These writes must happen in this order, because the interpreter will
742 // directly jump to from_interpreted_entry which jumps to an i2c adapter
743 // which jumps to _from_compiled_entry.
744 mh->_code = code; // Assign before allowing compiled code to exec
745
746 int comp_level = code->comp_level();
747 // In theory there could be a race here. In practice it is unlikely
748 // and not worth worrying about.
749 if (comp_level > mh->highest_tier_compile()) {
750 mh->set_highest_tier_compile(comp_level);
751 }
752
753 OrderAccess::storestore();
754 #ifdef SHARK
755 mh->_from_interpreted_entry = code->instructions_begin();
756 #else
757 mh->_from_compiled_entry = code->verified_entry_point();
758 OrderAccess::storestore();
759 // Instantly compiled code can execute.
760 mh->_from_interpreted_entry = mh->get_i2c_entry();
761 #endif // SHARK
762
763 }
764
765
766 bool methodOopDesc::is_overridden_in(klassOop k) const {
767 instanceKlass* ik = instanceKlass::cast(k);
768
769 if (ik->is_interface()) return false;
770
771 // If method is an interface, we skip it - except if it
772 // is a miranda method
773 if (instanceKlass::cast(method_holder())->is_interface()) {
774 // Check that method is not a miranda method
775 if (ik->lookup_method(name(), signature()) == NULL) {
776 // No implementation exist - so miranda method
777 return false;
778 }
779 return true;
780 }
781
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