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| 1 // Copyright 2008 the V8 project authors. All rights reserved. | 1 // Copyright 2008 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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| 286 | 286 |
| 287 // Store the top value on the virtual frame into a local frame slot. The | 287 // Store the top value on the virtual frame into a local frame slot. The |
| 288 // value is left in place on top of the frame. | 288 // value is left in place on top of the frame. |
| 289 void StoreToLocalAt(int index) { | 289 void StoreToLocalAt(int index) { |
| 290 StoreToFrameSlotAt(local0_index() + index); | 290 StoreToFrameSlotAt(local0_index() + index); |
| 291 } | 291 } |
| 292 | 292 |
| 293 // The function frame slot. | 293 // The function frame slot. |
| 294 Operand Function() const { return Operand(ebp, kFunctionOffset); } | 294 Operand Function() const { return Operand(ebp, kFunctionOffset); } |
| 295 | 295 |
| 296 // Push the address of the receiver slot on the frame. |
| 297 void PushReceiverSlotAddress(); |
| 298 |
| 299 // Push the function on top of the frame. |
| 300 void PushFunction() { LoadFrameSlotAt(function_index()); } |
| 301 |
| 296 // Lazily save the value of the esi register to the context frame slot. | 302 // Lazily save the value of the esi register to the context frame slot. |
| 297 void SaveContextRegister(); | 303 void SaveContextRegister(); |
| 298 | 304 |
| 299 // Eagerly restore the esi register from the value of the frame context | 305 // Eagerly restore the esi register from the value of the frame context |
| 300 // slot. | 306 // slot. |
| 301 void RestoreContextRegister(); | 307 void RestoreContextRegister(); |
| 302 | 308 |
| 303 // A parameter as an assembly operand. | 309 // A parameter as an assembly operand. |
| 304 Operand ParameterAt(int index) const { | 310 Operand ParameterAt(int index) const { |
| 305 ASSERT(-1 <= index); // -1 is the receiver. | 311 ASSERT(-1 <= index); // -1 is the receiver. |
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| 379 | 385 |
| 380 // Push an element on top of the expression stack and emit a corresponding | 386 // Push an element on top of the expression stack and emit a corresponding |
| 381 // push instruction. | 387 // push instruction. |
| 382 void EmitPush(Register reg); | 388 void EmitPush(Register reg); |
| 383 void EmitPush(Operand operand); | 389 void EmitPush(Operand operand); |
| 384 void EmitPush(Immediate immediate); | 390 void EmitPush(Immediate immediate); |
| 385 | 391 |
| 386 // Push an element on the virtual frame. | 392 // Push an element on the virtual frame. |
| 387 void Push(Register reg); | 393 void Push(Register reg); |
| 388 void Push(Handle<Object> value); | 394 void Push(Handle<Object> value); |
| 395 void Push(Smi* value) { Push(Handle<Object>(value)); } |
| 389 | 396 |
| 390 // Pushing a result invalidates it (its contents become owned by the | 397 // Pushing a result invalidates it (its contents become owned by the |
| 391 // frame). | 398 // frame). |
| 392 void Push(Result* result); | 399 void Push(Result* result); |
| 393 | 400 |
| 394 // Nip removes zero or more elements from immediately below the top | 401 // Nip removes zero or more elements from immediately below the top |
| 395 // of the frame, leaving the previous top-of-frame value on top of | 402 // of the frame, leaving the previous top-of-frame value on top of |
| 396 // the frame. Nip(k) is equivalent to x = Pop(), Drop(k), Push(x). | 403 // the frame. Nip(k) is equivalent to x = Pop(), Drop(k), Push(x). |
| 397 void Nip(int num_dropped); | 404 void Nip(int num_dropped); |
| 398 | 405 |
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| 528 // Called after all register-to-memory and register-to-register | 535 // Called after all register-to-memory and register-to-register |
| 529 // moves have been made. After this function returns, the frames | 536 // moves have been made. After this function returns, the frames |
| 530 // should be equal. | 537 // should be equal. |
| 531 void MergeMoveMemoryToRegisters(VirtualFrame* expected); | 538 void MergeMoveMemoryToRegisters(VirtualFrame* expected); |
| 532 }; | 539 }; |
| 533 | 540 |
| 534 | 541 |
| 535 } } // namespace v8::internal | 542 } } // namespace v8::internal |
| 536 | 543 |
| 537 #endif // V8_VIRTUAL_FRAME_IA32_H_ | 544 #endif // V8_VIRTUAL_FRAME_IA32_H_ |
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