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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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77 | 77 |
78 // Construct a virtual frame as a clone of an existing one. | 78 // Construct a virtual frame as a clone of an existing one. |
79 explicit inline VirtualFrame(VirtualFrame* original); | 79 explicit inline VirtualFrame(VirtualFrame* original); |
80 | 80 |
81 CodeGenerator* cgen() { return CodeGeneratorScope::Current(); } | 81 CodeGenerator* cgen() { return CodeGeneratorScope::Current(); } |
82 | 82 |
83 MacroAssembler* masm() { return cgen()->masm(); } | 83 MacroAssembler* masm() { return cgen()->masm(); } |
84 | 84 |
85 // Create a duplicate of an existing valid frame element. | 85 // Create a duplicate of an existing valid frame element. |
86 FrameElement CopyElementAt(int index, | 86 FrameElement CopyElementAt(int index, |
87 NumberInfo::Type info = NumberInfo::kUninitialized); | 87 NumberInfo info = NumberInfo::Uninitialized()); |
88 | 88 |
89 // The number of elements on the virtual frame. | 89 // The number of elements on the virtual frame. |
90 int element_count() { return elements_.length(); } | 90 int element_count() { return elements_.length(); } |
91 | 91 |
92 // The height of the virtual expression stack. | 92 // The height of the virtual expression stack. |
93 int height() { return element_count() - expression_base_index(); } | 93 int height() { return element_count() - expression_base_index(); } |
94 | 94 |
95 int register_location(int num) { | 95 int register_location(int num) { |
96 ASSERT(num >= 0 && num < RegisterAllocator::kNumRegisters); | 96 ASSERT(num >= 0 && num < RegisterAllocator::kNumRegisters); |
97 return register_locations_[num]; | 97 return register_locations_[num]; |
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381 Result Pop(); | 381 Result Pop(); |
382 | 382 |
383 // Pop and save an element from the top of the expression stack and | 383 // Pop and save an element from the top of the expression stack and |
384 // emit a corresponding pop instruction. | 384 // emit a corresponding pop instruction. |
385 void EmitPop(Register reg); | 385 void EmitPop(Register reg); |
386 void EmitPop(Operand operand); | 386 void EmitPop(Operand operand); |
387 | 387 |
388 // Push an element on top of the expression stack and emit a | 388 // Push an element on top of the expression stack and emit a |
389 // corresponding push instruction. | 389 // corresponding push instruction. |
390 void EmitPush(Register reg, | 390 void EmitPush(Register reg, |
391 NumberInfo::Type info = NumberInfo::kUnknown); | 391 NumberInfo info = NumberInfo::Unknown()); |
392 void EmitPush(Operand operand, | 392 void EmitPush(Operand operand, |
393 NumberInfo::Type info = NumberInfo::kUnknown); | 393 NumberInfo info = NumberInfo::Unknown()); |
394 void EmitPush(Immediate immediate, | 394 void EmitPush(Immediate immediate, |
395 NumberInfo::Type info = NumberInfo::kUnknown); | 395 NumberInfo info = NumberInfo::Unknown()); |
396 | 396 |
397 // Push an element on the virtual frame. | 397 // Push an element on the virtual frame. |
398 inline void Push(Register reg, NumberInfo::Type info = NumberInfo::kUnknown); | 398 inline void Push(Register reg, NumberInfo info = NumberInfo::Unknown()); |
399 inline void Push(Handle<Object> value); | 399 inline void Push(Handle<Object> value); |
400 inline void Push(Smi* value); | 400 inline void Push(Smi* value); |
401 | 401 |
402 // Pushing a result invalidates it (its contents become owned by the | 402 // Pushing a result invalidates it (its contents become owned by the |
403 // frame). | 403 // frame). |
404 void Push(Result* result) { | 404 void Push(Result* result) { |
405 // This assert will trigger if you try to push the same value twice. | 405 // This assert will trigger if you try to push the same value twice. |
406 ASSERT(result->is_valid()); | 406 ASSERT(result->is_valid()); |
407 if (result->is_register()) { | 407 if (result->is_register()) { |
408 Push(result->reg(), result->number_info()); | 408 Push(result->reg(), result->number_info()); |
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590 inline bool Equals(VirtualFrame* other); | 590 inline bool Equals(VirtualFrame* other); |
591 | 591 |
592 // Classes that need raw access to the elements_ array. | 592 // Classes that need raw access to the elements_ array. |
593 friend class DeferredCode; | 593 friend class DeferredCode; |
594 friend class JumpTarget; | 594 friend class JumpTarget; |
595 }; | 595 }; |
596 | 596 |
597 } } // namespace v8::internal | 597 } } // namespace v8::internal |
598 | 598 |
599 #endif // V8_IA32_VIRTUAL_FRAME_IA32_H_ | 599 #endif // V8_IA32_VIRTUAL_FRAME_IA32_H_ |
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