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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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428 // temporarily while the code generator is being transformed. | 428 // temporarily while the code generator is being transformed. |
429 void LoadAndSpill(Expression* expression); | 429 void LoadAndSpill(Expression* expression); |
430 | 430 |
431 // Read a value from a slot and leave it on top of the expression stack. | 431 // Read a value from a slot and leave it on top of the expression stack. |
432 void LoadFromSlot(Slot* slot, TypeofState typeof_state); | 432 void LoadFromSlot(Slot* slot, TypeofState typeof_state); |
433 void LoadFromSlotCheckForArguments(Slot* slot, TypeofState state); | 433 void LoadFromSlotCheckForArguments(Slot* slot, TypeofState state); |
434 Result LoadFromGlobalSlotCheckExtensions(Slot* slot, | 434 Result LoadFromGlobalSlotCheckExtensions(Slot* slot, |
435 TypeofState typeof_state, | 435 TypeofState typeof_state, |
436 JumpTarget* slow); | 436 JumpTarget* slow); |
437 | 437 |
| 438 // Support for loading from local/global variables and arguments |
| 439 // whose location is known unless they are shadowed by |
| 440 // eval-introduced bindings. Generates no code for unsupported slot |
| 441 // types and therefore expects to fall through to the slow jump target. |
| 442 void EmitDynamicLoadFromSlotFastCase(Slot* slot, |
| 443 TypeofState typeof_state, |
| 444 Result* result, |
| 445 JumpTarget* slow, |
| 446 JumpTarget* done); |
| 447 |
438 // Store the value on top of the expression stack into a slot, leaving the | 448 // Store the value on top of the expression stack into a slot, leaving the |
439 // value in place. | 449 // value in place. |
440 void StoreToSlot(Slot* slot, InitState init_state); | 450 void StoreToSlot(Slot* slot, InitState init_state); |
441 | 451 |
442 // Load a property of an object, returning it in a Result. | 452 // Load a property of an object, returning it in a Result. |
443 // The object and the property name are passed on the stack, and | 453 // The object and the property name are passed on the stack, and |
444 // not changed. | 454 // not changed. |
445 Result EmitKeyedLoad(bool is_global); | 455 Result EmitKeyedLoad(bool is_global); |
446 | 456 |
447 // Special code for typeof expressions: Unfortunately, we must | 457 // Special code for typeof expressions: Unfortunately, we must |
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1043 return ObjectBits::encode(object_.code()) | | 1053 return ObjectBits::encode(object_.code()) | |
1044 AddressBits::encode(addr_.code()) | | 1054 AddressBits::encode(addr_.code()) | |
1045 ScratchBits::encode(scratch_.code()); | 1055 ScratchBits::encode(scratch_.code()); |
1046 } | 1056 } |
1047 }; | 1057 }; |
1048 | 1058 |
1049 | 1059 |
1050 } } // namespace v8::internal | 1060 } } // namespace v8::internal |
1051 | 1061 |
1052 #endif // V8_X64_CODEGEN_X64_H_ | 1062 #endif // V8_X64_CODEGEN_X64_H_ |
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