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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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539 | 539 |
540 // Fast support for Math.random(). | 540 // Fast support for Math.random(). |
541 void GenerateRandomPositiveSmi(ZoneList<Expression*>* args); | 541 void GenerateRandomPositiveSmi(ZoneList<Expression*>* args); |
542 | 542 |
543 // Fast support for Math.sin and Math.cos. | 543 // Fast support for Math.sin and Math.cos. |
544 enum MathOp { SIN, COS }; | 544 enum MathOp { SIN, COS }; |
545 void GenerateFastMathOp(MathOp op, ZoneList<Expression*>* args); | 545 void GenerateFastMathOp(MathOp op, ZoneList<Expression*>* args); |
546 inline void GenerateMathSin(ZoneList<Expression*>* args); | 546 inline void GenerateMathSin(ZoneList<Expression*>* args); |
547 inline void GenerateMathCos(ZoneList<Expression*>* args); | 547 inline void GenerateMathCos(ZoneList<Expression*>* args); |
548 | 548 |
| 549 // Fast support for StringAdd. |
| 550 void GenerateStringAdd(ZoneList<Expression*>* args); |
| 551 |
549 // Simple condition analysis. | 552 // Simple condition analysis. |
550 enum ConditionAnalysis { | 553 enum ConditionAnalysis { |
551 ALWAYS_TRUE, | 554 ALWAYS_TRUE, |
552 ALWAYS_FALSE, | 555 ALWAYS_FALSE, |
553 DONT_KNOW | 556 DONT_KNOW |
554 }; | 557 }; |
555 ConditionAnalysis AnalyzeCondition(Expression* cond); | 558 ConditionAnalysis AnalyzeCondition(Expression* cond); |
556 | 559 |
557 // Methods used to indicate which source code is generated for. Source | 560 // Methods used to indicate which source code is generated for. Source |
558 // positions are collected by the assembler and emitted with the relocation | 561 // positions are collected by the assembler and emitted with the relocation |
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730 } | 733 } |
731 | 734 |
732 void SetArgsInRegisters() { args_in_registers_ = true; } | 735 void SetArgsInRegisters() { args_in_registers_ = true; } |
733 void SetArgsReversed() { args_reversed_ = true; } | 736 void SetArgsReversed() { args_reversed_ = true; } |
734 bool HasSmiCodeInStub() { return (flags_ & NO_SMI_CODE_IN_STUB) == 0; } | 737 bool HasSmiCodeInStub() { return (flags_ & NO_SMI_CODE_IN_STUB) == 0; } |
735 bool HasArgumentsInRegisters() { return args_in_registers_; } | 738 bool HasArgumentsInRegisters() { return args_in_registers_; } |
736 bool HasArgumentsReversed() { return args_reversed_; } | 739 bool HasArgumentsReversed() { return args_reversed_; } |
737 }; | 740 }; |
738 | 741 |
739 | 742 |
| 743 // Flag that indicates how to generate code for the stub StringAddStub. |
| 744 enum StringAddFlags { |
| 745 NO_STRING_ADD_FLAGS = 0, |
| 746 NO_STRING_CHECK_IN_STUB = 1 << 0 // Omit string check in stub. |
| 747 }; |
| 748 |
| 749 |
| 750 class StringAddStub: public CodeStub { |
| 751 public: |
| 752 explicit StringAddStub(StringAddFlags flags) { |
| 753 string_check_ = ((flags & NO_STRING_CHECK_IN_STUB) == 0); |
| 754 } |
| 755 |
| 756 private: |
| 757 Major MajorKey() { return StringAdd; } |
| 758 int MinorKey() { return string_check_ ? 0 : 1; } |
| 759 |
| 760 void Generate(MacroAssembler* masm); |
| 761 |
| 762 void GenerateCopyCharacters(MacroAssembler* masm, |
| 763 Register desc, |
| 764 Register src, |
| 765 Register count, |
| 766 Register scratch, |
| 767 bool ascii); |
| 768 |
| 769 // Should the stub check whether arguments are strings? |
| 770 bool string_check_; |
| 771 }; |
| 772 |
| 773 |
740 } } // namespace v8::internal | 774 } } // namespace v8::internal |
741 | 775 |
742 #endif // V8_IA32_CODEGEN_IA32_H_ | 776 #endif // V8_IA32_CODEGEN_IA32_H_ |
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