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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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| 72 | 72 |
| 73 private: | 73 private: |
| 74 Token::Value op_; | 74 Token::Value op_; |
| 75 UnaryOverwriteMode mode_; | 75 UnaryOverwriteMode mode_; |
| 76 | 76 |
| 77 // Operand type information determined at runtime. | 77 // Operand type information determined at runtime. |
| 78 UnaryOpIC::TypeInfo operand_type_; | 78 UnaryOpIC::TypeInfo operand_type_; |
| 79 | 79 |
| 80 char* name_; | 80 char* name_; |
| 81 | 81 |
| 82 const char* GetName(); | 82 virtual const char* GetName(); |
| 83 | 83 |
| 84 #ifdef DEBUG | 84 #ifdef DEBUG |
| 85 void Print() { | 85 void Print() { |
| 86 PrintF("UnaryOpStub %d (op %s), (mode %d, runtime_type_info %s)\n", | 86 PrintF("UnaryOpStub %d (op %s), (mode %d, runtime_type_info %s)\n", |
| 87 MinorKey(), | 87 MinorKey(), |
| 88 Token::String(op_), | 88 Token::String(op_), |
| 89 static_cast<int>(mode_), | 89 static_cast<int>(mode_), |
| 90 UnaryOpIC::GetName(operand_type_)); | 90 UnaryOpIC::GetName(operand_type_)); |
| 91 } | 91 } |
| 92 #endif | 92 #endif |
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| 169 Token::Value op_; | 169 Token::Value op_; |
| 170 OverwriteMode mode_; | 170 OverwriteMode mode_; |
| 171 bool use_fpu_; | 171 bool use_fpu_; |
| 172 | 172 |
| 173 // Operand type information determined at runtime. | 173 // Operand type information determined at runtime. |
| 174 BinaryOpIC::TypeInfo operands_type_; | 174 BinaryOpIC::TypeInfo operands_type_; |
| 175 BinaryOpIC::TypeInfo result_type_; | 175 BinaryOpIC::TypeInfo result_type_; |
| 176 | 176 |
| 177 char* name_; | 177 char* name_; |
| 178 | 178 |
| 179 const char* GetName(); | 179 virtual const char* GetName(); |
| 180 | 180 |
| 181 #ifdef DEBUG | 181 #ifdef DEBUG |
| 182 void Print() { | 182 void Print() { |
| 183 PrintF("BinaryOpStub %d (op %s), " | 183 PrintF("BinaryOpStub %d (op %s), " |
| 184 "(mode %d, runtime_type_info %s)\n", | 184 "(mode %d, runtime_type_info %s)\n", |
| 185 MinorKey(), | 185 MinorKey(), |
| 186 Token::String(op_), | 186 Token::String(op_), |
| 187 static_cast<int>(mode_), | 187 static_cast<int>(mode_), |
| 188 BinaryOpIC::GetName(operands_type_)); | 188 BinaryOpIC::GetName(operands_type_)); |
| 189 } | 189 } |
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| 367 | 367 |
| 368 Major MajorKey() { return WriteInt32ToHeapNumber; } | 368 Major MajorKey() { return WriteInt32ToHeapNumber; } |
| 369 int MinorKey() { | 369 int MinorKey() { |
| 370 // Encode the parameters in a unique 16 bit value. | 370 // Encode the parameters in a unique 16 bit value. |
| 371 return IntRegisterBits::encode(the_int_.code()) | 371 return IntRegisterBits::encode(the_int_.code()) |
| 372 | HeapNumberRegisterBits::encode(the_heap_number_.code()) | 372 | HeapNumberRegisterBits::encode(the_heap_number_.code()) |
| 373 | ScratchRegisterBits::encode(scratch_.code()); | 373 | ScratchRegisterBits::encode(scratch_.code()); |
| 374 } | 374 } |
| 375 | 375 |
| 376 void Generate(MacroAssembler* masm); | 376 void Generate(MacroAssembler* masm); |
| 377 | |
| 378 const char* GetName() { return "WriteInt32ToHeapNumberStub"; } | |
| 379 | |
| 380 #ifdef DEBUG | |
| 381 void Print() { PrintF("WriteInt32ToHeapNumberStub\n"); } | |
| 382 #endif | |
| 383 }; | 377 }; |
| 384 | 378 |
| 385 | 379 |
| 386 class NumberToStringStub: public CodeStub { | 380 class NumberToStringStub: public CodeStub { |
| 387 public: | 381 public: |
| 388 NumberToStringStub() { } | 382 NumberToStringStub() { } |
| 389 | 383 |
| 390 // Generate code to do a lookup in the number string cache. If the number in | 384 // Generate code to do a lookup in the number string cache. If the number in |
| 391 // the register object is found in the cache the generated code falls through | 385 // the register object is found in the cache the generated code falls through |
| 392 // with the result in the result register. The object and the result register | 386 // with the result in the result register. The object and the result register |
| 393 // can be the same. If the number is not found in the cache the code jumps to | 387 // can be the same. If the number is not found in the cache the code jumps to |
| 394 // the label not_found with only the content of register object unchanged. | 388 // the label not_found with only the content of register object unchanged. |
| 395 static void GenerateLookupNumberStringCache(MacroAssembler* masm, | 389 static void GenerateLookupNumberStringCache(MacroAssembler* masm, |
| 396 Register object, | 390 Register object, |
| 397 Register result, | 391 Register result, |
| 398 Register scratch1, | 392 Register scratch1, |
| 399 Register scratch2, | 393 Register scratch2, |
| 400 Register scratch3, | 394 Register scratch3, |
| 401 bool object_is_smi, | 395 bool object_is_smi, |
| 402 Label* not_found); | 396 Label* not_found); |
| 403 | 397 |
| 404 private: | 398 private: |
| 405 Major MajorKey() { return NumberToString; } | 399 Major MajorKey() { return NumberToString; } |
| 406 int MinorKey() { return 0; } | 400 int MinorKey() { return 0; } |
| 407 | 401 |
| 408 void Generate(MacroAssembler* masm); | 402 void Generate(MacroAssembler* masm); |
| 409 | |
| 410 const char* GetName() { return "NumberToStringStub"; } | |
| 411 | |
| 412 #ifdef DEBUG | |
| 413 void Print() { | |
| 414 PrintF("NumberToStringStub\n"); | |
| 415 } | |
| 416 #endif | |
| 417 }; | 403 }; |
| 418 | 404 |
| 419 | 405 |
| 420 // Enter C code from generated RegExp code in a way that allows | 406 // Enter C code from generated RegExp code in a way that allows |
| 421 // the C code to fix the return address in case of a GC. | 407 // the C code to fix the return address in case of a GC. |
| 422 // Currently only needed on ARM and MIPS. | 408 // Currently only needed on ARM and MIPS. |
| 423 class RegExpCEntryStub: public CodeStub { | 409 class RegExpCEntryStub: public CodeStub { |
| 424 public: | 410 public: |
| 425 RegExpCEntryStub() {} | 411 RegExpCEntryStub() {} |
| 426 virtual ~RegExpCEntryStub() {} | 412 virtual ~RegExpCEntryStub() {} |
| 427 void Generate(MacroAssembler* masm); | 413 void Generate(MacroAssembler* masm); |
| 428 | 414 |
| 429 private: | 415 private: |
| 430 Major MajorKey() { return RegExpCEntry; } | 416 Major MajorKey() { return RegExpCEntry; } |
| 431 int MinorKey() { return 0; } | 417 int MinorKey() { return 0; } |
| 432 | 418 |
| 433 bool NeedsImmovableCode() { return true; } | 419 bool NeedsImmovableCode() { return true; } |
| 434 | |
| 435 const char* GetName() { return "RegExpCEntryStub"; } | |
| 436 }; | 420 }; |
| 437 | 421 |
| 438 // Trampoline stub to call into native code. To call safely into native code | 422 // Trampoline stub to call into native code. To call safely into native code |
| 439 // in the presence of compacting GC (which can move code objects) we need to | 423 // in the presence of compacting GC (which can move code objects) we need to |
| 440 // keep the code which called into native pinned in the memory. Currently the | 424 // keep the code which called into native pinned in the memory. Currently the |
| 441 // simplest approach is to generate such stub early enough so it can never be | 425 // simplest approach is to generate such stub early enough so it can never be |
| 442 // moved by GC | 426 // moved by GC |
| 443 class DirectCEntryStub: public CodeStub { | 427 class DirectCEntryStub: public CodeStub { |
| 444 public: | 428 public: |
| 445 DirectCEntryStub() {} | 429 DirectCEntryStub() {} |
| 446 void Generate(MacroAssembler* masm); | 430 void Generate(MacroAssembler* masm); |
| 447 void GenerateCall(MacroAssembler* masm, | 431 void GenerateCall(MacroAssembler* masm, |
| 448 ExternalReference function); | 432 ExternalReference function); |
| 449 void GenerateCall(MacroAssembler* masm, Register target); | 433 void GenerateCall(MacroAssembler* masm, Register target); |
| 450 | 434 |
| 451 private: | 435 private: |
| 452 Major MajorKey() { return DirectCEntry; } | 436 Major MajorKey() { return DirectCEntry; } |
| 453 int MinorKey() { return 0; } | 437 int MinorKey() { return 0; } |
| 454 | 438 |
| 455 bool NeedsImmovableCode() { return true; } | 439 bool NeedsImmovableCode() { return true; } |
| 456 | |
| 457 const char* GetName() { return "DirectCEntryStub"; } | |
| 458 }; | 440 }; |
| 459 | 441 |
| 460 class FloatingPointHelper : public AllStatic { | 442 class FloatingPointHelper : public AllStatic { |
| 461 public: | 443 public: |
| 462 enum Destination { | 444 enum Destination { |
| 463 kFPURegisters, | 445 kFPURegisters, |
| 464 kCoreRegisters | 446 kCoreRegisters |
| 465 }; | 447 }; |
| 466 | 448 |
| 467 | 449 |
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| 629 static const int kTotalProbes = 20; | 611 static const int kTotalProbes = 20; |
| 630 | 612 |
| 631 static const int kCapacityOffset = | 613 static const int kCapacityOffset = |
| 632 StringDictionary::kHeaderSize + | 614 StringDictionary::kHeaderSize + |
| 633 StringDictionary::kCapacityIndex * kPointerSize; | 615 StringDictionary::kCapacityIndex * kPointerSize; |
| 634 | 616 |
| 635 static const int kElementsStartOffset = | 617 static const int kElementsStartOffset = |
| 636 StringDictionary::kHeaderSize + | 618 StringDictionary::kHeaderSize + |
| 637 StringDictionary::kElementsStartIndex * kPointerSize; | 619 StringDictionary::kElementsStartIndex * kPointerSize; |
| 638 | 620 |
| 639 | |
| 640 #ifdef DEBUG | |
| 641 void Print() { | |
| 642 PrintF("StringDictionaryLookupStub\n"); | |
| 643 } | |
| 644 #endif | |
| 645 | |
| 646 Major MajorKey() { return StringDictionaryNegativeLookup; } | 621 Major MajorKey() { return StringDictionaryNegativeLookup; } |
| 647 | 622 |
| 648 int MinorKey() { | 623 int MinorKey() { |
| 649 return LookupModeBits::encode(mode_); | 624 return LookupModeBits::encode(mode_); |
| 650 } | 625 } |
| 651 | 626 |
| 652 class LookupModeBits: public BitField<LookupMode, 0, 1> {}; | 627 class LookupModeBits: public BitField<LookupMode, 0, 1> {}; |
| 653 | 628 |
| 654 LookupMode mode_; | 629 LookupMode mode_; |
| 655 }; | 630 }; |
| 656 | 631 |
| 657 | 632 |
| 658 } } // namespace v8::internal | 633 } } // namespace v8::internal |
| 659 | 634 |
| 660 #endif // V8_MIPS_CODE_STUBS_ARM_H_ | 635 #endif // V8_MIPS_CODE_STUBS_ARM_H_ |
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