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Issue 20455: Move implementation of comparisons with constant smis to use... (Closed) Base URL: http://v8.googlecode.com/svn/branches/experimental/toiger/
Patch Set: '' Created 11 years, 10 months ago
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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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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;
471 bool IsUnsafeSmi(Handle<Object> value); 471 bool IsUnsafeSmi(Handle<Object> value);
472 // Load an integer constant x into a register target using 472 // Load an integer constant x into a register target using
473 // at most 16 bits of user-controlled data per assembly operation. 473 // at most 16 bits of user-controlled data per assembly operation.
474 void LoadUnsafeSmi(Register target, Handle<Object> value); 474 void LoadUnsafeSmi(Register target, Handle<Object> value);
475 475
476 bool IsInlineSmi(Literal* literal); 476 bool IsInlineSmi(Literal* literal);
477 void SmiComparison(Condition cc, Handle<Object> value, bool strict);
478 void SmiOperation(Token::Value op, 477 void SmiOperation(Token::Value op,
479 StaticType* type, 478 StaticType* type,
480 Handle<Object> value, 479 Handle<Object> value,
481 bool reversed, 480 bool reversed,
482 OverwriteMode overwrite_mode); 481 OverwriteMode overwrite_mode);
483 482
484 void CallWithArguments(ZoneList<Expression*>* arguments, int position); 483 void CallWithArguments(ZoneList<Expression*>* arguments, int position);
485 484
486 void CheckStack(); 485 void CheckStack();
487 void CleanStack(int num_bytes); 486 void CleanStack(int num_bytes);
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632 cgen_->set_in_spilled_code(false); 631 cgen_->set_in_spilled_code(false);
633 GetValue(typeof_state); 632 GetValue(typeof_state);
634 cgen_->frame()->SpillAll(); 633 cgen_->frame()->SpillAll();
635 cgen_->set_in_spilled_code(true); 634 cgen_->set_in_spilled_code(true);
636 } 635 }
637 636
638 637
639 } } // namespace v8::internal 638 } } // namespace v8::internal
640 639
641 #endif // V8_CODEGEN_IA32_H_ 640 #endif // V8_CODEGEN_IA32_H_
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