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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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437 StaticType* type, | 437 StaticType* type, |
438 OverwriteMode overwrite_mode); | 438 OverwriteMode overwrite_mode); |
439 | 439 |
440 // If possible, combine two constant smi values using op to produce | 440 // If possible, combine two constant smi values using op to produce |
441 // a smi result, and push it on the virtual frame, all at compile time. | 441 // a smi result, and push it on the virtual frame, all at compile time. |
442 // Returns true if it succeeds. Otherwise it has no effect. | 442 // Returns true if it succeeds. Otherwise it has no effect. |
443 bool FoldConstantSmis(Token::Value op, int left, int right); | 443 bool FoldConstantSmis(Token::Value op, int left, int right); |
444 | 444 |
445 // Emit code to perform a binary operation on a constant | 445 // Emit code to perform a binary operation on a constant |
446 // smi and a likely smi. Consumes the Result *operand. | 446 // smi and a likely smi. Consumes the Result *operand. |
447 void ConstantSmiBinaryOperation(Token::Value op, | 447 Result ConstantSmiBinaryOperation(Token::Value op, |
448 Result* operand, | 448 Result* operand, |
449 Handle<Object> constant_operand, | 449 Handle<Object> constant_operand, |
450 StaticType* type, | 450 StaticType* type, |
451 bool reversed, | 451 bool reversed, |
452 OverwriteMode overwrite_mode); | 452 OverwriteMode overwrite_mode); |
453 | 453 |
454 // Emit code to perform a binary operation on two likely smis. | 454 // Emit code to perform a binary operation on two likely smis. |
455 // The code to handle smi arguments is produced inline. | 455 // The code to handle smi arguments is produced inline. |
456 // Consumes the Results *left and *right. | 456 // Consumes the Results *left and *right. |
457 void LikelySmiBinaryOperation(Token::Value op, | 457 Result LikelySmiBinaryOperation(Token::Value op, |
458 Result* left, | 458 Result* left, |
459 Result* right, | 459 Result* right, |
460 OverwriteMode overwrite_mode); | 460 OverwriteMode overwrite_mode); |
461 | 461 |
462 void Comparison(AstNode* node, | 462 void Comparison(AstNode* node, |
463 Condition cc, | 463 Condition cc, |
464 bool strict, | 464 bool strict, |
465 ControlDestination* destination); | 465 ControlDestination* destination); |
466 | 466 |
467 // To prevent long attacker-controlled byte sequences, integer constants | 467 // To prevent long attacker-controlled byte sequences, integer constants |
468 // from the JavaScript source are loaded in two parts if they are larger | 468 // from the JavaScript source are loaded in two parts if they are larger |
469 // than 16 bits. | 469 // than 16 bits. |
470 static const int kMaxSmiInlinedBits = 16; | 470 static const int kMaxSmiInlinedBits = 16; |
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795 Major MajorKey() { return StringCompare; } | 795 Major MajorKey() { return StringCompare; } |
796 int MinorKey() { return 0; } | 796 int MinorKey() { return 0; } |
797 | 797 |
798 void Generate(MacroAssembler* masm); | 798 void Generate(MacroAssembler* masm); |
799 }; | 799 }; |
800 | 800 |
801 | 801 |
802 } } // namespace v8::internal | 802 } } // namespace v8::internal |
803 | 803 |
804 #endif // V8_IA32_CODEGEN_IA32_H_ | 804 #endif // V8_IA32_CODEGEN_IA32_H_ |
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