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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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747 // Compare object type for heap object. | 747 // Compare object type for heap object. |
748 // Always use unsigned comparisons: above and below, not less and greater. | 748 // Always use unsigned comparisons: above and below, not less and greater. |
749 // Incoming register is heap_object and outgoing register is map. | 749 // Incoming register is heap_object and outgoing register is map. |
750 // They may be the same register, and may be kScratchRegister. | 750 // They may be the same register, and may be kScratchRegister. |
751 void CmpObjectType(Register heap_object, InstanceType type, Register map); | 751 void CmpObjectType(Register heap_object, InstanceType type, Register map); |
752 | 752 |
753 // Compare instance type for map. | 753 // Compare instance type for map. |
754 // Always use unsigned comparisons: above and below, not less and greater. | 754 // Always use unsigned comparisons: above and below, not less and greater. |
755 void CmpInstanceType(Register map, InstanceType type); | 755 void CmpInstanceType(Register map, InstanceType type); |
756 | 756 |
| 757 // Check if a map for a JSObject indicates that the object has fast elements. |
| 758 // Jump to the specified label if it does not. |
| 759 void CheckFastElements(Register map, |
| 760 Label* fail, |
| 761 Label::Distance distance = Label::kFar); |
| 762 |
757 // Check if the map of an object is equal to a specified map and | 763 // Check if the map of an object is equal to a specified map and |
758 // branch to label if not. Skip the smi check if not required | 764 // branch to label if not. Skip the smi check if not required |
759 // (object is known to be a heap object) | 765 // (object is known to be a heap object) |
760 void CheckMap(Register obj, | 766 void CheckMap(Register obj, |
761 Handle<Map> map, | 767 Handle<Map> map, |
762 Label* fail, | 768 Label* fail, |
763 SmiCheckType smi_check_type); | 769 SmiCheckType smi_check_type); |
764 | 770 |
765 // Check if the map of an object is equal to a specified map and branch to a | 771 // Check if the map of an object is equal to a specified map and branch to a |
766 // specified target if equal. Skip the smi check if not required (object is | 772 // specified target if equal. Skip the smi check if not required (object is |
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1282 masm->popfd(); \ | 1288 masm->popfd(); \ |
1283 } \ | 1289 } \ |
1284 masm-> | 1290 masm-> |
1285 #else | 1291 #else |
1286 #define ACCESS_MASM(masm) masm-> | 1292 #define ACCESS_MASM(masm) masm-> |
1287 #endif | 1293 #endif |
1288 | 1294 |
1289 } } // namespace v8::internal | 1295 } } // namespace v8::internal |
1290 | 1296 |
1291 #endif // V8_X64_MACRO_ASSEMBLER_X64_H_ | 1297 #endif // V8_X64_MACRO_ASSEMBLER_X64_H_ |
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