src/share/vm/opto/doCall.cpp
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*** old/src/share/vm/opto/doCall.cpp	Thu Dec  3 11:54:37 2009
--- new/src/share/vm/opto/doCall.cpp	Thu Dec  3 11:54:37 2009

*** 222,241 **** --- 222,286 ---- } } } } + // Do MethodHandle calls. + if (call_method->is_method_handle_invoke()) { + if (jvms->method()->java_code_at_bci(jvms->bci()) != Bytecodes::_invokedynamic) { + GraphKit kit(jvms); + Node* n = kit.argument(0); + + if (n->Opcode() == Op_ConP) { + const TypeOopPtr* oop_ptr = n->bottom_type()->is_oopptr(); + ciObject* const_oop = oop_ptr->const_oop(); + ciMethodHandle* method_handle = const_oop->as_method_handle(); + + // Set the actually called method to have access to the class + // and signature in the MethodHandleCompiler. + method_handle->set_callee(call_method); + + // Get an adapter for the MethodHandle. + ciMethod* target_method = method_handle->get_method_handle_adapter(); + + CallGenerator* hit_cg = this->call_generator(target_method, vtable_index, false, jvms, true, prof_factor); + if (hit_cg != NULL && hit_cg->is_inline()) + return hit_cg; + } + + return CallGenerator::for_direct_call(call_method); + } + else { + // Get the MethodHandle from the CallSite. + ciMethod* caller_method = jvms->method(); + ciBytecodeStream str(caller_method); + str.force_bci(jvms->bci()); // Set the stream to the invokedynamic bci. + ciCallSite* call_site = str.get_call_site(); + ciMethodHandle* method_handle = call_site->get_target(); + + // Set the actually called method to have access to the class + // and signature in the MethodHandleCompiler. + method_handle->set_callee(call_method); + + // Get an adapter for the MethodHandle. + ciMethod* target_method = method_handle->get_invokedynamic_adapter(); + + CallGenerator* hit_cg = this->call_generator(target_method, vtable_index, false, jvms, true, prof_factor); + if (hit_cg != NULL && hit_cg->is_inline()) { + CallGenerator* miss_cg = CallGenerator::for_dynamic_call(call_method); + return CallGenerator::for_predicted_dynamic_call(method_handle, miss_cg, hit_cg, prof_factor); + } + + // If something failed, generate a normal dynamic call. + return CallGenerator::for_dynamic_call(call_method); + } + } + // There was no special inlining tactic, or it bailed out. // Use a more generic tactic, like a simple call. if (call_is_virtual) { return CallGenerator::for_virtual_call(call_method, vtable_index); } else if (call_method->is_method_handle_invoke()) { if (jvms->method()->java_code_at_bci(jvms->bci()) == Bytecodes::_invokedynamic) return CallGenerator::for_dynamic_call(call_method); else // %%% if the target MH is a compile-time constant, we should try to inline it return CallGenerator::for_direct_call(call_method); } else { // Class Hierarchy Analysis or Type Profile reveals a unique target, // or it is a static or special call. return CallGenerator::for_direct_call(call_method, should_delay_inlining(call_method, jvms)); }

src/share/vm/opto/doCall.cpp
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