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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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| 477 | 477 |
| 478 void Comparison(Condition cc, | 478 void Comparison(Condition cc, |
| 479 bool strict, | 479 bool strict, |
| 480 ControlDestination* destination); | 480 ControlDestination* destination); |
| 481 | 481 |
| 482 // To prevent long attacker-controlled byte sequences, integer constants | 482 // To prevent long attacker-controlled byte sequences, integer constants |
| 483 // from the JavaScript source are loaded in two parts if they are larger | 483 // from the JavaScript source are loaded in two parts if they are larger |
| 484 // than 16 bits. | 484 // than 16 bits. |
| 485 static const int kMaxSmiInlinedBits = 16; | 485 static const int kMaxSmiInlinedBits = 16; |
| 486 bool IsUnsafeSmi(Handle<Object> value); | 486 bool IsUnsafeSmi(Handle<Object> value); |
| 487 // Load an integer constant x into a register target using | 487 // Load an integer constant x into a register target or into the stack using |
| 488 // at most 16 bits of user-controlled data per assembly operation. | 488 // at most 16 bits of user-controlled data per assembly operation. |
| 489 void LoadUnsafeSmi(Register target, Handle<Object> value); | 489 void MoveUnsafeSmi(Register target, Handle<Object> value); |
| 490 void StoreUnsafeSmiToLocal(int offset, Handle<Object> value); |
| 491 void PushUnsafeSmi(Handle<Object> value); |
| 490 | 492 |
| 491 void CallWithArguments(ZoneList<Expression*>* arguments, int position); | 493 void CallWithArguments(ZoneList<Expression*>* arguments, int position); |
| 492 | 494 |
| 493 // Use an optimized version of Function.prototype.apply that avoid | 495 // Use an optimized version of Function.prototype.apply that avoid |
| 494 // allocating the arguments object and just copies the arguments | 496 // allocating the arguments object and just copies the arguments |
| 495 // from the stack. | 497 // from the stack. |
| 496 void CallApplyLazy(Property* apply, | 498 void CallApplyLazy(Property* apply, |
| 497 Expression* receiver, | 499 Expression* receiver, |
| 498 VariableProxy* arguments, | 500 VariableProxy* arguments, |
| 499 int position); | 501 int position); |
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| 725 void SetArgsReversed() { args_reversed_ = true; } | 727 void SetArgsReversed() { args_reversed_ = true; } |
| 726 bool HasSmiCodeInStub() { return (flags_ & NO_SMI_CODE_IN_STUB) == 0; } | 728 bool HasSmiCodeInStub() { return (flags_ & NO_SMI_CODE_IN_STUB) == 0; } |
| 727 bool HasArgumentsInRegisters() { return args_in_registers_; } | 729 bool HasArgumentsInRegisters() { return args_in_registers_; } |
| 728 bool HasArgumentsReversed() { return args_reversed_; } | 730 bool HasArgumentsReversed() { return args_reversed_; } |
| 729 }; | 731 }; |
| 730 | 732 |
| 731 | 733 |
| 732 } } // namespace v8::internal | 734 } } // namespace v8::internal |
| 733 | 735 |
| 734 #endif // V8_IA32_CODEGEN_IA32_H_ | 736 #endif // V8_IA32_CODEGEN_IA32_H_ |
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