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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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353 Register scratch); | 353 Register scratch); |
354 | 354 |
355 private: | 355 private: |
356 DISALLOW_IMPLICIT_CONSTRUCTORS(StringHelper); | 356 DISALLOW_IMPLICIT_CONSTRUCTORS(StringHelper); |
357 }; | 357 }; |
358 | 358 |
359 | 359 |
360 // Flag that indicates how to generate code for the stub StringAddStub. | 360 // Flag that indicates how to generate code for the stub StringAddStub. |
361 enum StringAddFlags { | 361 enum StringAddFlags { |
362 NO_STRING_ADD_FLAGS = 0, | 362 NO_STRING_ADD_FLAGS = 0, |
363 NO_STRING_CHECK_IN_STUB = 1 << 0 // Omit string check in stub. | 363 // Omit left string check in stub (left is definitely a string). |
| 364 NO_STRING_CHECK_LEFT_IN_STUB = 1 << 0, |
| 365 // Omit right string check in stub (right is definitely a string). |
| 366 NO_STRING_CHECK_RIGHT_IN_STUB = 1 << 1, |
| 367 // Omit both string checks in stub. |
| 368 NO_STRING_CHECK_IN_STUB = |
| 369 NO_STRING_CHECK_LEFT_IN_STUB | NO_STRING_CHECK_RIGHT_IN_STUB |
364 }; | 370 }; |
365 | 371 |
366 | 372 |
367 class StringAddStub: public CodeStub { | 373 class StringAddStub: public CodeStub { |
368 public: | 374 public: |
369 explicit StringAddStub(StringAddFlags flags) { | 375 explicit StringAddStub(StringAddFlags flags) : flags_(flags) {} |
370 string_check_ = ((flags & NO_STRING_CHECK_IN_STUB) == 0); | |
371 } | |
372 | 376 |
373 private: | 377 private: |
374 Major MajorKey() { return StringAdd; } | 378 Major MajorKey() { return StringAdd; } |
375 int MinorKey() { return string_check_ ? 0 : 1; } | 379 int MinorKey() { return flags_; } |
376 | 380 |
377 void Generate(MacroAssembler* masm); | 381 void Generate(MacroAssembler* masm); |
378 | 382 |
379 // Should the stub check whether arguments are strings? | 383 void GenerateConvertArgument(MacroAssembler* masm, |
380 bool string_check_; | 384 int stack_offset, |
| 385 Register arg, |
| 386 Register scratch1, |
| 387 Register scratch2, |
| 388 Register scratch3, |
| 389 Label* slow); |
| 390 |
| 391 const StringAddFlags flags_; |
381 }; | 392 }; |
382 | 393 |
383 | 394 |
384 class SubStringStub: public CodeStub { | 395 class SubStringStub: public CodeStub { |
385 public: | 396 public: |
386 SubStringStub() {} | 397 SubStringStub() {} |
387 | 398 |
388 private: | 399 private: |
389 Major MajorKey() { return SubString; } | 400 Major MajorKey() { return SubString; } |
390 int MinorKey() { return 0; } | 401 int MinorKey() { return 0; } |
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491 bool load_elements_from_receiver, | 502 bool load_elements_from_receiver, |
492 bool key_is_untagged, | 503 bool key_is_untagged, |
493 Label* key_not_smi, | 504 Label* key_not_smi, |
494 Label* value_not_smi, | 505 Label* value_not_smi, |
495 Label* not_pixel_array, | 506 Label* not_pixel_array, |
496 Label* out_of_range); | 507 Label* out_of_range); |
497 | 508 |
498 } } // namespace v8::internal | 509 } } // namespace v8::internal |
499 | 510 |
500 #endif // V8_X64_CODE_STUBS_X64_H_ | 511 #endif // V8_X64_CODE_STUBS_X64_H_ |
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