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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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68 // AnalyzeCondition | 68 // AnalyzeCondition |
69 // CodeForFunctionPosition | 69 // CodeForFunctionPosition |
70 // CodeForReturnPosition | 70 // CodeForReturnPosition |
71 // CodeForStatementPosition | 71 // CodeForStatementPosition |
72 // CodeForDoWhileConditionPosition | 72 // CodeForDoWhileConditionPosition |
73 // CodeForSourcePosition | 73 // CodeForSourcePosition |
74 | 74 |
75 | 75 |
76 // Mode to overwrite BinaryExpression values. | 76 // Mode to overwrite BinaryExpression values. |
77 enum OverwriteMode { NO_OVERWRITE, OVERWRITE_LEFT, OVERWRITE_RIGHT }; | 77 enum OverwriteMode { NO_OVERWRITE, OVERWRITE_LEFT, OVERWRITE_RIGHT }; |
| 78 enum UnaryOverwriteMode { UNARY_OVERWRITE, UNARY_NO_OVERWRITE }; |
78 | 79 |
79 // Types of uncatchable exceptions. | 80 // Types of uncatchable exceptions. |
80 enum UncatchableExceptionType { OUT_OF_MEMORY, TERMINATION }; | 81 enum UncatchableExceptionType { OUT_OF_MEMORY, TERMINATION }; |
81 | 82 |
82 | 83 |
83 #if V8_TARGET_ARCH_IA32 | 84 #if V8_TARGET_ARCH_IA32 |
84 #include "ia32/codegen-ia32.h" | 85 #include "ia32/codegen-ia32.h" |
85 #elif V8_TARGET_ARCH_X64 | 86 #elif V8_TARGET_ARCH_X64 |
86 #include "x64/codegen-x64.h" | 87 #include "x64/codegen-x64.h" |
87 #elif V8_TARGET_ARCH_ARM | 88 #elif V8_TARGET_ARCH_ARM |
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407 InstanceofStub() { } | 408 InstanceofStub() { } |
408 | 409 |
409 void Generate(MacroAssembler* masm); | 410 void Generate(MacroAssembler* masm); |
410 | 411 |
411 private: | 412 private: |
412 Major MajorKey() { return Instanceof; } | 413 Major MajorKey() { return Instanceof; } |
413 int MinorKey() { return 0; } | 414 int MinorKey() { return 0; } |
414 }; | 415 }; |
415 | 416 |
416 | 417 |
| 418 enum NegativeZeroHandling { |
| 419 kStrictNegativeZero, |
| 420 kIgnoreNegativeZero |
| 421 }; |
| 422 |
| 423 |
417 class GenericUnaryOpStub : public CodeStub { | 424 class GenericUnaryOpStub : public CodeStub { |
418 public: | 425 public: |
419 GenericUnaryOpStub(Token::Value op, bool overwrite) | 426 GenericUnaryOpStub(Token::Value op, |
420 : op_(op), overwrite_(overwrite) { } | 427 UnaryOverwriteMode overwrite, |
| 428 NegativeZeroHandling negative_zero = kStrictNegativeZero) |
| 429 : op_(op), overwrite_(overwrite), negative_zero_(negative_zero) { } |
421 | 430 |
422 private: | 431 private: |
423 Token::Value op_; | 432 Token::Value op_; |
424 bool overwrite_; | 433 UnaryOverwriteMode overwrite_; |
| 434 NegativeZeroHandling negative_zero_; |
425 | 435 |
426 class OverwriteField: public BitField<int, 0, 1> {}; | 436 class OverwriteField: public BitField<UnaryOverwriteMode, 0, 1> {}; |
427 class OpField: public BitField<Token::Value, 1, kMinorBits - 1> {}; | 437 class NegativeZeroField: public BitField<NegativeZeroHandling, 1, 1> {}; |
| 438 class OpField: public BitField<Token::Value, 2, kMinorBits - 2> {}; |
428 | 439 |
429 Major MajorKey() { return GenericUnaryOp; } | 440 Major MajorKey() { return GenericUnaryOp; } |
430 int MinorKey() { | 441 int MinorKey() { |
431 return OpField::encode(op_) | OverwriteField::encode(overwrite_); | 442 return OpField::encode(op_) | |
| 443 OverwriteField::encode(overwrite_) | |
| 444 NegativeZeroField::encode(negative_zero_); |
432 } | 445 } |
433 | 446 |
434 void Generate(MacroAssembler* masm); | 447 void Generate(MacroAssembler* masm); |
435 | 448 |
436 const char* GetName(); | 449 const char* GetName(); |
437 }; | 450 }; |
438 | 451 |
439 | 452 |
440 enum NaNInformation { | 453 enum NaNInformation { |
441 kBothCouldBeNaN, | 454 kBothCouldBeNaN, |
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858 StringCharFromCodeGenerator char_from_code_generator_; | 871 StringCharFromCodeGenerator char_from_code_generator_; |
859 | 872 |
860 DISALLOW_COPY_AND_ASSIGN(StringCharAtGenerator); | 873 DISALLOW_COPY_AND_ASSIGN(StringCharAtGenerator); |
861 }; | 874 }; |
862 | 875 |
863 | 876 |
864 } // namespace internal | 877 } // namespace internal |
865 } // namespace v8 | 878 } // namespace v8 |
866 | 879 |
867 #endif // V8_CODEGEN_H_ | 880 #endif // V8_CODEGEN_H_ |
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