| OLD | NEW |
| 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 |
| (...skipping 123 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 134 __ bind(&miss); | 134 __ bind(&miss); |
| 135 __ pop(offset); | 135 __ pop(offset); |
| 136 } | 136 } |
| 137 } | 137 } |
| 138 | 138 |
| 139 | 139 |
| 140 // Helper function used to check that the dictionary doesn't contain | 140 // Helper function used to check that the dictionary doesn't contain |
| 141 // the property. This function may return false negatives, so miss_label | 141 // the property. This function may return false negatives, so miss_label |
| 142 // must always call a backup property check that is complete. | 142 // must always call a backup property check that is complete. |
| 143 // This function is safe to call if the receiver has fast properties. | 143 // This function is safe to call if the receiver has fast properties. |
| 144 // Name must be a symbol and receiver must be a heap object. | 144 // Name must be an internalized string and receiver must be a heap object. |
| 145 static void GenerateDictionaryNegativeLookup(MacroAssembler* masm, | 145 static void GenerateDictionaryNegativeLookup(MacroAssembler* masm, |
| 146 Label* miss_label, | 146 Label* miss_label, |
| 147 Register receiver, | 147 Register receiver, |
| 148 Handle<String> name, | 148 Handle<String> name, |
| 149 Register r0, | 149 Register r0, |
| 150 Register r1) { | 150 Register r1) { |
| 151 ASSERT(name->IsSymbol()); | 151 ASSERT(name->IsInternalizedString()); |
| 152 Counters* counters = masm->isolate()->counters(); | 152 Counters* counters = masm->isolate()->counters(); |
| 153 __ IncrementCounter(counters->negative_lookups(), 1); | 153 __ IncrementCounter(counters->negative_lookups(), 1); |
| 154 __ IncrementCounter(counters->negative_lookups_miss(), 1); | 154 __ IncrementCounter(counters->negative_lookups_miss(), 1); |
| 155 | 155 |
| 156 __ mov(r0, FieldOperand(receiver, HeapObject::kMapOffset)); | 156 __ mov(r0, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 157 | 157 |
| 158 const int kInterceptorOrAccessCheckNeededMask = | 158 const int kInterceptorOrAccessCheckNeededMask = |
| 159 (1 << Map::kHasNamedInterceptor) | (1 << Map::kIsAccessCheckNeeded); | 159 (1 << Map::kHasNamedInterceptor) | (1 << Map::kIsAccessCheckNeeded); |
| 160 | 160 |
| 161 // Bail out if the receiver has a named interceptor or requires access checks. | 161 // Bail out if the receiver has a named interceptor or requires access checks. |
| (...skipping 803 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 965 ++depth; | 965 ++depth; |
| 966 | 966 |
| 967 // Only global objects and objects that do not require access | 967 // Only global objects and objects that do not require access |
| 968 // checks are allowed in stubs. | 968 // checks are allowed in stubs. |
| 969 ASSERT(current->IsJSGlobalProxy() || !current->IsAccessCheckNeeded()); | 969 ASSERT(current->IsJSGlobalProxy() || !current->IsAccessCheckNeeded()); |
| 970 | 970 |
| 971 Handle<JSObject> prototype(JSObject::cast(current->GetPrototype())); | 971 Handle<JSObject> prototype(JSObject::cast(current->GetPrototype())); |
| 972 if (!current->HasFastProperties() && | 972 if (!current->HasFastProperties() && |
| 973 !current->IsJSGlobalObject() && | 973 !current->IsJSGlobalObject() && |
| 974 !current->IsJSGlobalProxy()) { | 974 !current->IsJSGlobalProxy()) { |
| 975 if (!name->IsSymbol()) { | 975 if (!name->IsInternalizedString()) { |
| 976 name = factory()->LookupSymbol(name); | 976 name = factory()->InternalizeString(name); |
| 977 } | 977 } |
| 978 ASSERT(current->property_dictionary()->FindEntry(*name) == | 978 ASSERT(current->property_dictionary()->FindEntry(*name) == |
| 979 StringDictionary::kNotFound); | 979 StringDictionary::kNotFound); |
| 980 | 980 |
| 981 GenerateDictionaryNegativeLookup(masm(), miss, reg, name, | 981 GenerateDictionaryNegativeLookup(masm(), miss, reg, name, |
| 982 scratch1, scratch2); | 982 scratch1, scratch2); |
| 983 | 983 |
| 984 __ mov(scratch1, FieldOperand(reg, HeapObject::kMapOffset)); | 984 __ mov(scratch1, FieldOperand(reg, HeapObject::kMapOffset)); |
| 985 reg = holder_reg; // From now on the object will be in holder_reg. | 985 reg = holder_reg; // From now on the object will be in holder_reg. |
| 986 __ mov(reg, FieldOperand(scratch1, Map::kPrototypeOffset)); | 986 __ mov(reg, FieldOperand(scratch1, Map::kPrototypeOffset)); |
| (...skipping 1428 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 2415 // Patch the receiver on the stack with the global proxy if | 2415 // Patch the receiver on the stack with the global proxy if |
| 2416 // necessary. | 2416 // necessary. |
| 2417 if (object->IsGlobalObject()) { | 2417 if (object->IsGlobalObject()) { |
| 2418 __ mov(edx, FieldOperand(edx, GlobalObject::kGlobalReceiverOffset)); | 2418 __ mov(edx, FieldOperand(edx, GlobalObject::kGlobalReceiverOffset)); |
| 2419 __ mov(Operand(esp, (argc + 1) * kPointerSize), edx); | 2419 __ mov(Operand(esp, (argc + 1) * kPointerSize), edx); |
| 2420 } | 2420 } |
| 2421 break; | 2421 break; |
| 2422 | 2422 |
| 2423 case STRING_CHECK: | 2423 case STRING_CHECK: |
| 2424 if (function->IsBuiltin() || !function->shared()->is_classic_mode()) { | 2424 if (function->IsBuiltin() || !function->shared()->is_classic_mode()) { |
| 2425 // Check that the object is a string or a symbol. | 2425 // Check that the object is a string or an internalized string. |
| 2426 __ CmpObjectType(edx, FIRST_NONSTRING_TYPE, eax); | 2426 __ CmpObjectType(edx, FIRST_NONSTRING_TYPE, eax); |
| 2427 __ j(above_equal, &miss); | 2427 __ j(above_equal, &miss); |
| 2428 // Check that the maps starting from the prototype haven't changed. | 2428 // Check that the maps starting from the prototype haven't changed. |
| 2429 GenerateDirectLoadGlobalFunctionPrototype( | 2429 GenerateDirectLoadGlobalFunctionPrototype( |
| 2430 masm(), Context::STRING_FUNCTION_INDEX, eax, &miss); | 2430 masm(), Context::STRING_FUNCTION_INDEX, eax, &miss); |
| 2431 CheckPrototypes( | 2431 CheckPrototypes( |
| 2432 Handle<JSObject>(JSObject::cast(object->GetPrototype())), | 2432 Handle<JSObject>(JSObject::cast(object->GetPrototype())), |
| 2433 eax, holder, ebx, edx, edi, name, &miss); | 2433 eax, holder, ebx, edx, edi, name, &miss); |
| 2434 } else { | 2434 } else { |
| 2435 // Calling non-strict non-builtins with a value as the receiver | 2435 // Calling non-strict non-builtins with a value as the receiver |
| (...skipping 1481 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 3917 __ jmp(ic_slow, RelocInfo::CODE_TARGET); | 3917 __ jmp(ic_slow, RelocInfo::CODE_TARGET); |
| 3918 } | 3918 } |
| 3919 } | 3919 } |
| 3920 | 3920 |
| 3921 | 3921 |
| 3922 #undef __ | 3922 #undef __ |
| 3923 | 3923 |
| 3924 } } // namespace v8::internal | 3924 } } // namespace v8::internal |
| 3925 | 3925 |
| 3926 #endif // V8_TARGET_ARCH_IA32 | 3926 #endif // V8_TARGET_ARCH_IA32 |
| OLD | NEW |