2742
2743 if (SafepointMechanism::uses_thread_local_poll() && _desc->bytecode() != Bytecodes::_return_register_finalizer) {
2744 Label no_safepoint;
2745 NOT_PRODUCT(__ block_comment("Thread-local Safepoint poll"));
2746 #ifdef _LP64
2747 __ testb(Address(r15_thread, Thread::polling_page_offset()), SafepointMechanism::poll_bit());
2748 #else
2749 const Register thread = rdi;
2750 __ get_thread(thread);
2751 __ testb(Address(thread, Thread::polling_page_offset()), SafepointMechanism::poll_bit());
2752 #endif
2753 __ jcc(Assembler::zero, no_safepoint);
2754 __ push(state);
2755 __ call_VM(noreg, CAST_FROM_FN_PTR(address,
2756 InterpreterRuntime::at_safepoint));
2757 __ pop(state);
2758 __ bind(no_safepoint);
2759 }
2760
2761 if (state == atos) {
2762 if (ValueTypesBufferMaxMemory > 0) {
2763 Label notBuffered;
2764
2765 __ test_value_is_not_buffered(rax, rbx, notBuffered);
2766 const Register thread1 = NOT_LP64(rcx) LP64_ONLY(r15_thread);
2767 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::return_value), rax);
2768 NOT_LP64(__ get_thread(thread1));
2769 __ get_vm_result(rax, thread1);
2770 __ bind(notBuffered);
2771 }
2772 }
2773
2774 // Narrow result if state is itos but result type is smaller.
2775 // Need to narrow in the return bytecode rather than in generate_return_entry
2776 // since compiled code callers expect the result to already be narrowed.
2777 if (state == itos) {
2778 __ narrow(rax);
2779 }
2780
2781 __ remove_activation(state, rbcp, true, true, true, /*state == qtos*/ false && ValueTypeReturnedAsFields);
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2742
2743 if (SafepointMechanism::uses_thread_local_poll() && _desc->bytecode() != Bytecodes::_return_register_finalizer) {
2744 Label no_safepoint;
2745 NOT_PRODUCT(__ block_comment("Thread-local Safepoint poll"));
2746 #ifdef _LP64
2747 __ testb(Address(r15_thread, Thread::polling_page_offset()), SafepointMechanism::poll_bit());
2748 #else
2749 const Register thread = rdi;
2750 __ get_thread(thread);
2751 __ testb(Address(thread, Thread::polling_page_offset()), SafepointMechanism::poll_bit());
2752 #endif
2753 __ jcc(Assembler::zero, no_safepoint);
2754 __ push(state);
2755 __ call_VM(noreg, CAST_FROM_FN_PTR(address,
2756 InterpreterRuntime::at_safepoint));
2757 __ pop(state);
2758 __ bind(no_safepoint);
2759 }
2760
2761 if (state == atos) {
2762 Label not_returning_null_vt;
2763 const Register method = rbx;
2764
2765 __ testl(rax, rax);
2766 __ jcc(Assembler::notZero, not_returning_null_vt);
2767 __ get_method(method);
2768 __ cmpb(Address(rbx, Method::flags_offset() + in_ByteSize(1)), Method::byte_value_for_known_not_returning_vt());
2769 __ jcc(Assembler::equal, not_returning_null_vt);
2770 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::deoptimize_caller_frame_for_vt), method);
2771 __ bind(not_returning_null_vt);
2772 if (ValueTypesBufferMaxMemory > 0) {
2773 Label notBuffered;
2774
2775 __ test_value_is_not_buffered(rax, rbx, notBuffered);
2776 const Register thread1 = NOT_LP64(rcx) LP64_ONLY(r15_thread);
2777 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::return_value), rax);
2778 NOT_LP64(__ get_thread(thread1));
2779 __ get_vm_result(rax, thread1);
2780 __ bind(notBuffered);
2781 }
2782 }
2783
2784 // Narrow result if state is itos but result type is smaller.
2785 // Need to narrow in the return bytecode rather than in generate_return_entry
2786 // since compiled code callers expect the result to already be narrowed.
2787 if (state == itos) {
2788 __ narrow(rax);
2789 }
2790
2791 __ remove_activation(state, rbcp, true, true, true, /*state == qtos*/ false && ValueTypeReturnedAsFields);
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