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1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 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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373 | 373 |
374 static const int kHandlerSize = StackHandlerConstants::kSize / kPointerSize; | 374 static const int kHandlerSize = StackHandlerConstants::kSize / kPointerSize; |
375 static const int kPreallocatedElements = 5 + 8; // 8 expression stack slots. | 375 static const int kPreallocatedElements = 5 + 8; // 8 expression stack slots. |
376 | 376 |
377 CodeGenerator* cgen_; | 377 CodeGenerator* cgen_; |
378 MacroAssembler* masm_; | 378 MacroAssembler* masm_; |
379 | 379 |
380 ZoneList<FrameElement> elements_; | 380 ZoneList<FrameElement> elements_; |
381 | 381 |
382 // The number of frame-allocated locals and parameters respectively. | 382 // The number of frame-allocated locals and parameters respectively. |
383 int16_t parameter_count_; | 383 int parameter_count_; |
384 int16_t local_count_; | 384 int local_count_; |
385 | 385 |
386 // The index of the element that is at the processor's stack pointer | 386 // The index of the element that is at the processor's stack pointer |
387 // (the sp register). | 387 // (the sp register). |
388 int16_t stack_pointer_; | 388 int stack_pointer_; |
389 | 389 |
390 // The index of the element that is at the processor's frame pointer | 390 // The index of the element that is at the processor's frame pointer |
391 // (the fp register). | 391 // (the fp register). |
392 int16_t frame_pointer_; | 392 int frame_pointer_; |
393 | 393 |
394 // The index of the register frame element using each register, or | 394 // The index of the register frame element using each register, or |
395 // kIllegalIndex if a register is not on the frame. | 395 // kIllegalIndex if a register is not on the frame. |
396 int16_t register_locations_[kNumRegisters]; | 396 int register_locations_[kNumRegisters]; |
397 | 397 |
398 // The index of the first parameter. The receiver lies below the first | 398 // The index of the first parameter. The receiver lies below the first |
399 // parameter. | 399 // parameter. |
400 int param0_index() const { return 1; } | 400 int param0_index() const { return 1; } |
401 | 401 |
402 // The index of the context slot in the frame. | 402 // The index of the context slot in the frame. |
403 int context_index() const { | 403 int context_index() const { |
404 ASSERT(frame_pointer_ != kIllegalIndex); | 404 ASSERT(frame_pointer_ != kIllegalIndex); |
405 return frame_pointer_ - 1; | 405 return frame_pointer_ - 1; |
406 } | 406 } |
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521 | 521 |
522 bool Equals(VirtualFrame* other); | 522 bool Equals(VirtualFrame* other); |
523 | 523 |
524 friend class JumpTarget; | 524 friend class JumpTarget; |
525 }; | 525 }; |
526 | 526 |
527 | 527 |
528 } } // namespace v8::internal | 528 } } // namespace v8::internal |
529 | 529 |
530 #endif // V8_ARM_VIRTUAL_FRAME_ARM_H_ | 530 #endif // V8_ARM_VIRTUAL_FRAME_ARM_H_ |
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