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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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797 if (object->IsUndefined() || object->IsNull()) { | 797 if (object->IsUndefined() || object->IsNull()) { |
798 return TypeError("non_object_property_call", object, key); | 798 return TypeError("non_object_property_call", object, key); |
799 } | 799 } |
800 | 800 |
801 bool use_ic = MigrateDeprecated(object) | 801 bool use_ic = MigrateDeprecated(object) |
802 ? false : FLAG_use_ic && !object->IsAccessCheckNeeded(); | 802 ? false : FLAG_use_ic && !object->IsAccessCheckNeeded(); |
803 | 803 |
804 if (use_ic && state() != MEGAMORPHIC) { | 804 if (use_ic && state() != MEGAMORPHIC) { |
805 ASSERT(!object->IsJSGlobalProxy()); | 805 ASSERT(!object->IsJSGlobalProxy()); |
806 int argc = target()->arguments_count(); | 806 int argc = target()->arguments_count(); |
807 Handle<Code> stub; | 807 Handle<Code> stub = isolate()->stub_cache()->ComputeCallMegamorphic( |
808 | 808 argc, Code::KEYED_CALL_IC, Code::kNoExtraICState); |
809 // Use the KeyedArrayCallStub if the call is of the form array[smi](...), | 809 if (object->IsJSObject()) { |
810 // where array is an instance of one of the initial array maps (without | 810 Handle<JSObject> receiver = Handle<JSObject>::cast(object); |
811 // extra named properties). | 811 if (receiver->elements()->map() == |
812 // TODO(verwaest): Also support keyed calls on instances of other maps. | 812 isolate()->heap()->non_strict_arguments_elements_map()) { |
813 if (object->IsJSArray() && key->IsSmi()) { | 813 stub = isolate()->stub_cache()->ComputeCallArguments(argc); |
814 Handle<JSArray> array = Handle<JSArray>::cast(object); | |
815 ElementsKind kind = array->map()->elements_kind(); | |
816 if (IsFastObjectElementsKind(kind) && | |
817 array->map() == isolate()->get_initial_js_array_map(kind)) { | |
818 KeyedArrayCallStub stub_gen(IsHoleyElementsKind(kind), argc); | |
819 stub = stub_gen.GetCode(isolate()); | |
820 } | 814 } |
821 } | 815 } |
822 | 816 ASSERT(!stub.is_null()); |
823 if (stub.is_null()) { | |
824 stub = isolate()->stub_cache()->ComputeCallMegamorphic( | |
825 argc, Code::KEYED_CALL_IC, Code::kNoExtraICState); | |
826 if (object->IsJSObject()) { | |
827 Handle<JSObject> receiver = Handle<JSObject>::cast(object); | |
828 if (receiver->elements()->map() == | |
829 isolate()->heap()->non_strict_arguments_elements_map()) { | |
830 stub = isolate()->stub_cache()->ComputeCallArguments(argc); | |
831 } | |
832 } | |
833 ASSERT(!stub.is_null()); | |
834 } | |
835 set_target(*stub); | 817 set_target(*stub); |
836 TRACE_IC("CallIC", key); | 818 TRACE_IC("CallIC", key); |
837 } | 819 } |
838 | 820 |
839 Handle<Object> result = GetProperty(isolate(), object, key); | 821 Handle<Object> result = GetProperty(isolate(), object, key); |
840 RETURN_IF_EMPTY_HANDLE(isolate(), result); | 822 RETURN_IF_EMPTY_HANDLE(isolate(), result); |
841 | 823 |
842 // Make receiver an object if the callee requires it. Strict mode or builtin | 824 // Make receiver an object if the callee requires it. Strict mode or builtin |
843 // functions do not wrap the receiver, non-strict functions and objects | 825 // functions do not wrap the receiver, non-strict functions and objects |
844 // called as functions do. | 826 // called as functions do. |
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2133 HandleScope scope(isolate); | 2115 HandleScope scope(isolate); |
2134 ASSERT(args.length() == 3); | 2116 ASSERT(args.length() == 3); |
2135 StoreIC ic(IC::EXTRA_CALL_FRAME, isolate); | 2117 StoreIC ic(IC::EXTRA_CALL_FRAME, isolate); |
2136 Handle<Object> receiver = args.at<Object>(0); | 2118 Handle<Object> receiver = args.at<Object>(0); |
2137 Handle<String> key = args.at<String>(1); | 2119 Handle<String> key = args.at<String>(1); |
2138 ic.UpdateState(receiver, key); | 2120 ic.UpdateState(receiver, key); |
2139 return ic.Store(receiver, key, args.at<Object>(2)); | 2121 return ic.Store(receiver, key, args.at<Object>(2)); |
2140 } | 2122 } |
2141 | 2123 |
2142 | 2124 |
2143 RUNTIME_FUNCTION(MaybeObject*, KeyedCallIC_MissFromStubFailure) { | |
2144 HandleScope scope(isolate); | |
2145 ASSERT(args.length() == 2); | |
2146 KeyedCallIC ic(isolate); | |
2147 Arguments* caller_args = reinterpret_cast<Arguments*>(args[0]); | |
2148 Handle<Object> key = args.at<Object>(1); | |
2149 Handle<Object> receiver((*caller_args)[0], isolate); | |
2150 | |
2151 ic.UpdateState(receiver, key); | |
2152 MaybeObject* maybe_result = ic.LoadFunction(receiver, key); | |
2153 // Result could be a function or a failure. | |
2154 JSFunction* raw_function = NULL; | |
2155 if (!maybe_result->To(&raw_function)) return maybe_result; | |
2156 | |
2157 if (raw_function->is_compiled()) return raw_function; | |
2158 | |
2159 Handle<JSFunction> function(raw_function, isolate); | |
2160 JSFunction::CompileLazy(function, CLEAR_EXCEPTION); | |
2161 return *function; | |
2162 } | |
2163 | |
2164 | |
2165 RUNTIME_FUNCTION(MaybeObject*, StoreIC_ArrayLength) { | 2125 RUNTIME_FUNCTION(MaybeObject*, StoreIC_ArrayLength) { |
2166 SealHandleScope shs(isolate); | 2126 SealHandleScope shs(isolate); |
2167 | 2127 |
2168 ASSERT(args.length() == 2); | 2128 ASSERT(args.length() == 2); |
2169 JSArray* receiver = JSArray::cast(args[0]); | 2129 JSArray* receiver = JSArray::cast(args[0]); |
2170 Object* len = args[1]; | 2130 Object* len = args[1]; |
2171 | 2131 |
2172 // The generated code should filter out non-Smis before we get here. | 2132 // The generated code should filter out non-Smis before we get here. |
2173 ASSERT(len->IsSmi()); | 2133 ASSERT(len->IsSmi()); |
2174 | 2134 |
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2770 #undef ADDR | 2730 #undef ADDR |
2771 }; | 2731 }; |
2772 | 2732 |
2773 | 2733 |
2774 Address IC::AddressFromUtilityId(IC::UtilityId id) { | 2734 Address IC::AddressFromUtilityId(IC::UtilityId id) { |
2775 return IC_utilities[id]; | 2735 return IC_utilities[id]; |
2776 } | 2736 } |
2777 | 2737 |
2778 | 2738 |
2779 } } // namespace v8::internal | 2739 } } // namespace v8::internal |
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