OLD | NEW |
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 |
(...skipping 51 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
62 inline VirtualFrame(); | 62 inline VirtualFrame(); |
63 | 63 |
64 // Construct a virtual frame as a clone of an existing one. | 64 // Construct a virtual frame as a clone of an existing one. |
65 explicit inline VirtualFrame(VirtualFrame* original); | 65 explicit inline VirtualFrame(VirtualFrame* original); |
66 | 66 |
67 CodeGenerator* cgen() { return CodeGeneratorScope::Current(); } | 67 CodeGenerator* cgen() { return CodeGeneratorScope::Current(); } |
68 MacroAssembler* masm() { return cgen()->masm(); } | 68 MacroAssembler* masm() { return cgen()->masm(); } |
69 | 69 |
70 // Create a duplicate of an existing valid frame element. | 70 // Create a duplicate of an existing valid frame element. |
71 FrameElement CopyElementAt(int index, | 71 FrameElement CopyElementAt(int index, |
72 NumberInfo info = NumberInfo::Unknown()); | 72 TypeInfo info = TypeInfo::Unknown()); |
73 | 73 |
74 // The number of elements on the virtual frame. | 74 // The number of elements on the virtual frame. |
75 int element_count() { return elements_.length(); } | 75 int element_count() { return elements_.length(); } |
76 | 76 |
77 // The height of the virtual expression stack. | 77 // The height of the virtual expression stack. |
78 int height() { | 78 int height() { |
79 return element_count() - expression_base_index(); | 79 return element_count() - expression_base_index(); |
80 } | 80 } |
81 | 81 |
82 int register_location(int num) { | 82 int register_location(int num) { |
(...skipping 254 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
337 // Push an element on top of the expression stack and emit a | 337 // Push an element on top of the expression stack and emit a |
338 // corresponding push instruction. | 338 // corresponding push instruction. |
339 void EmitPush(Register reg); | 339 void EmitPush(Register reg); |
340 | 340 |
341 // Push multiple registers on the stack and the virtual frame | 341 // Push multiple registers on the stack and the virtual frame |
342 // Register are selected by setting bit in src_regs and | 342 // Register are selected by setting bit in src_regs and |
343 // are pushed in decreasing order: r15 .. r0. | 343 // are pushed in decreasing order: r15 .. r0. |
344 void EmitPushMultiple(int count, int src_regs); | 344 void EmitPushMultiple(int count, int src_regs); |
345 | 345 |
346 // Push an element on the virtual frame. | 346 // Push an element on the virtual frame. |
347 inline void Push(Register reg, NumberInfo info = NumberInfo::Unknown()); | 347 inline void Push(Register reg, TypeInfo info = TypeInfo::Unknown()); |
348 inline void Push(Handle<Object> value); | 348 inline void Push(Handle<Object> value); |
349 inline void Push(Smi* value); | 349 inline void Push(Smi* value); |
350 | 350 |
351 // Pushing a result invalidates it (its contents become owned by the frame). | 351 // Pushing a result invalidates it (its contents become owned by the frame). |
352 void Push(Result* result) { | 352 void Push(Result* result) { |
353 if (result->is_register()) { | 353 if (result->is_register()) { |
354 Push(result->reg()); | 354 Push(result->reg()); |
355 } else { | 355 } else { |
356 ASSERT(result->is_constant()); | 356 ASSERT(result->is_constant()); |
357 Push(result->handle()); | 357 Push(result->handle()); |
358 } | 358 } |
359 result->Unuse(); | 359 result->Unuse(); |
360 } | 360 } |
361 | 361 |
362 // Nip removes zero or more elements from immediately below the top | 362 // Nip removes zero or more elements from immediately below the top |
363 // of the frame, leaving the previous top-of-frame value on top of | 363 // of the frame, leaving the previous top-of-frame value on top of |
364 // the frame. Nip(k) is equivalent to x = Pop(), Drop(k), Push(x). | 364 // the frame. Nip(k) is equivalent to x = Pop(), Drop(k), Push(x). |
365 inline void Nip(int num_dropped); | 365 inline void Nip(int num_dropped); |
366 | 366 |
367 inline void SetTypeForLocalAt(int index, NumberInfo info); | 367 inline void SetTypeForLocalAt(int index, TypeInfo info); |
368 inline void SetTypeForParamAt(int index, NumberInfo info); | 368 inline void SetTypeForParamAt(int index, TypeInfo info); |
369 | 369 |
370 private: | 370 private: |
371 static const int kLocal0Offset = JavaScriptFrameConstants::kLocal0Offset; | 371 static const int kLocal0Offset = JavaScriptFrameConstants::kLocal0Offset; |
372 static const int kFunctionOffset = JavaScriptFrameConstants::kFunctionOffset; | 372 static const int kFunctionOffset = JavaScriptFrameConstants::kFunctionOffset; |
373 static const int kContextOffset = StandardFrameConstants::kContextOffset; | 373 static const int kContextOffset = StandardFrameConstants::kContextOffset; |
374 | 374 |
375 static const int kHandlerSize = StackHandlerConstants::kSize / kPointerSize; | 375 static const int kHandlerSize = StackHandlerConstants::kSize / kPointerSize; |
376 static const int kPreallocatedElements = 5 + 8; // 8 expression stack slots. | 376 static const int kPreallocatedElements = 5 + 8; // 8 expression stack slots. |
377 | 377 |
378 ZoneList<FrameElement> elements_; | 378 ZoneList<FrameElement> elements_; |
(...skipping 128 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
507 | 507 |
508 // Classes that need raw access to the elements_ array. | 508 // Classes that need raw access to the elements_ array. |
509 friend class DeferredCode; | 509 friend class DeferredCode; |
510 friend class JumpTarget; | 510 friend class JumpTarget; |
511 }; | 511 }; |
512 | 512 |
513 | 513 |
514 } } // namespace v8::internal | 514 } } // namespace v8::internal |
515 | 515 |
516 #endif // V8_ARM_VIRTUAL_FRAME_ARM_H_ | 516 #endif // V8_ARM_VIRTUAL_FRAME_ARM_H_ |
OLD | NEW |