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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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511 // Fast support for charCodeAt(n). | 511 // Fast support for charCodeAt(n). |
512 void GenerateFastCharCodeAt(ZoneList<Expression*>* args); | 512 void GenerateFastCharCodeAt(ZoneList<Expression*>* args); |
513 | 513 |
514 // Fast support for object equality testing. | 514 // Fast support for object equality testing. |
515 void GenerateObjectEquals(ZoneList<Expression*>* args); | 515 void GenerateObjectEquals(ZoneList<Expression*>* args); |
516 | 516 |
517 void GenerateLog(ZoneList<Expression*>* args); | 517 void GenerateLog(ZoneList<Expression*>* args); |
518 | 518 |
519 void GenerateGetFramePointer(ZoneList<Expression*>* args); | 519 void GenerateGetFramePointer(ZoneList<Expression*>* args); |
520 | 520 |
| 521 // Fast support for Math.random(). |
| 522 void GenerateRandomPositiveSmi(ZoneList<Expression*>* args); |
| 523 |
521 // Methods and constants for fast case switch statement support. | 524 // Methods and constants for fast case switch statement support. |
522 // | 525 // |
523 // Only allow fast-case switch if the range of labels is at most | 526 // Only allow fast-case switch if the range of labels is at most |
524 // this factor times the number of case labels. | 527 // this factor times the number of case labels. |
525 // Value is derived from comparing the size of code generated by the normal | 528 // Value is derived from comparing the size of code generated by the normal |
526 // switch code for Smi-labels to the size of a single pointer. If code | 529 // switch code for Smi-labels to the size of a single pointer. If code |
527 // quality increases this number should be decreased to match. | 530 // quality increases this number should be decreased to match. |
528 static const int kFastSwitchMaxOverheadFactor = 5; | 531 static const int kFastSwitchMaxOverheadFactor = 5; |
529 | 532 |
530 // Minimal number of switch cases required before we allow jump-table | 533 // Minimal number of switch cases required before we allow jump-table |
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622 | 625 |
623 friend class CodeGeneratorPatcher; // Used in test-log-ia32.cc | 626 friend class CodeGeneratorPatcher; // Used in test-log-ia32.cc |
624 | 627 |
625 DISALLOW_COPY_AND_ASSIGN(CodeGenerator); | 628 DISALLOW_COPY_AND_ASSIGN(CodeGenerator); |
626 }; | 629 }; |
627 | 630 |
628 | 631 |
629 } } // namespace v8::internal | 632 } } // namespace v8::internal |
630 | 633 |
631 #endif // V8_IA32_CODEGEN_IA32_H_ | 634 #endif // V8_IA32_CODEGEN_IA32_H_ |
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