OLD | NEW |
1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_MIPS | 7 #if V8_TARGET_ARCH_MIPS |
8 | 8 |
9 #include "src/codegen.h" | 9 #include "src/codegen.h" |
10 #include "src/ic-inl.h" | 10 #include "src/ic-inl.h" |
(...skipping 721 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
732 while (!current_map.is_identical_to(holder_map)) { | 732 while (!current_map.is_identical_to(holder_map)) { |
733 ++depth; | 733 ++depth; |
734 | 734 |
735 // Only global objects and objects that do not require access | 735 // Only global objects and objects that do not require access |
736 // checks are allowed in stubs. | 736 // checks are allowed in stubs. |
737 DCHECK(current_map->IsJSGlobalProxyMap() || | 737 DCHECK(current_map->IsJSGlobalProxyMap() || |
738 !current_map->is_access_check_needed()); | 738 !current_map->is_access_check_needed()); |
739 | 739 |
740 prototype = handle(JSObject::cast(current_map->prototype())); | 740 prototype = handle(JSObject::cast(current_map->prototype())); |
741 if (current_map->is_dictionary_map() && | 741 if (current_map->is_dictionary_map() && |
742 !current_map->IsJSGlobalObjectMap() && | 742 !current_map->IsJSGlobalObjectMap()) { |
743 !current_map->IsJSGlobalProxyMap()) { | 743 DCHECK(!current_map->IsJSGlobalProxyMap()); // Proxy maps are fast. |
744 if (!name->IsUniqueName()) { | 744 if (!name->IsUniqueName()) { |
745 DCHECK(name->IsString()); | 745 DCHECK(name->IsString()); |
746 name = factory()->InternalizeString(Handle<String>::cast(name)); | 746 name = factory()->InternalizeString(Handle<String>::cast(name)); |
747 } | 747 } |
748 DCHECK(current.is_null() || | 748 DCHECK(current.is_null() || |
749 current->property_dictionary()->FindEntry(name) == | 749 current->property_dictionary()->FindEntry(name) == |
750 NameDictionary::kNotFound); | 750 NameDictionary::kNotFound); |
751 | 751 |
752 GenerateDictionaryNegativeLookup(masm(), miss, reg, name, | 752 GenerateDictionaryNegativeLookup(masm(), miss, reg, name, |
753 scratch1, scratch2); | 753 scratch1, scratch2); |
754 | 754 |
755 __ lw(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset)); | 755 __ lw(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset)); |
756 reg = holder_reg; // From now on the object will be in holder_reg. | 756 reg = holder_reg; // From now on the object will be in holder_reg. |
757 __ lw(reg, FieldMemOperand(scratch1, Map::kPrototypeOffset)); | 757 __ lw(reg, FieldMemOperand(scratch1, Map::kPrototypeOffset)); |
758 } else { | 758 } else { |
759 Register map_reg = scratch1; | 759 Register map_reg = scratch1; |
760 if (depth != 1 || check == CHECK_ALL_MAPS) { | 760 if (depth != 1 || check == CHECK_ALL_MAPS) { |
761 // CheckMap implicitly loads the map of |reg| into |map_reg|. | 761 // CheckMap implicitly loads the map of |reg| into |map_reg|. |
762 __ CheckMap(reg, map_reg, current_map, miss, DONT_DO_SMI_CHECK); | 762 __ CheckMap(reg, map_reg, current_map, miss, DONT_DO_SMI_CHECK); |
763 } else { | 763 } else { |
764 __ lw(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset)); | 764 __ lw(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset)); |
765 } | 765 } |
766 | 766 |
767 // Check access rights to the global object. This has to happen after | 767 // Check access rights to the global object. This has to happen after |
768 // the map check so that we know that the object is actually a global | 768 // the map check so that we know that the object is actually a global |
769 // object. | 769 // object. |
| 770 // This allows us to install generated handlers for accesses to the |
| 771 // global proxy (as opposed to using slow ICs). See corresponding code |
| 772 // in LookupForRead(). |
770 if (current_map->IsJSGlobalProxyMap()) { | 773 if (current_map->IsJSGlobalProxyMap()) { |
771 __ CheckAccessGlobalProxy(reg, scratch2, miss); | 774 __ CheckAccessGlobalProxy(reg, scratch2, miss); |
772 } else if (current_map->IsJSGlobalObjectMap()) { | 775 } else if (current_map->IsJSGlobalObjectMap()) { |
773 GenerateCheckPropertyCell( | 776 GenerateCheckPropertyCell( |
774 masm(), Handle<JSGlobalObject>::cast(current), name, | 777 masm(), Handle<JSGlobalObject>::cast(current), name, |
775 scratch2, miss); | 778 scratch2, miss); |
776 } | 779 } |
777 | 780 |
778 reg = holder_reg; // From now on the object will be in holder_reg. | 781 reg = holder_reg; // From now on the object will be in holder_reg. |
779 | 782 |
(...skipping 547 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1327 | 1330 |
1328 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss); | 1331 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss); |
1329 } | 1332 } |
1330 | 1333 |
1331 | 1334 |
1332 #undef __ | 1335 #undef __ |
1333 | 1336 |
1334 } } // namespace v8::internal | 1337 } } // namespace v8::internal |
1335 | 1338 |
1336 #endif // V8_TARGET_ARCH_MIPS | 1339 #endif // V8_TARGET_ARCH_MIPS |
OLD | NEW |