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1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 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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369 | 369 |
370 private: | 370 private: |
371 static const int kLocal0Offset = JavaScriptFrameConstants::kLocal0Offset; | 371 static const int kLocal0Offset = JavaScriptFrameConstants::kLocal0Offset; |
372 static const int kFunctionOffset = JavaScriptFrameConstants::kFunctionOffset; | 372 static const int kFunctionOffset = JavaScriptFrameConstants::kFunctionOffset; |
373 static const int kContextOffset = StandardFrameConstants::kContextOffset; | 373 static const int kContextOffset = StandardFrameConstants::kContextOffset; |
374 | 374 |
375 static const int kHandlerSize = StackHandlerConstants::kSize / kPointerSize; | 375 static const int kHandlerSize = StackHandlerConstants::kSize / kPointerSize; |
376 static const int kPreallocatedElements = 5 + 8; // 8 expression stack slots. | 376 static const int kPreallocatedElements = 5 + 8; // 8 expression stack slots. |
377 | 377 |
378 // 5 states for the top of stack, which can be in memory or in r0 and r1. | 378 // 5 states for the top of stack, which can be in memory or in r0 and r1. |
379 enum TopOfStack { NO_TOS_REGISTERS, R0_TOS, R1_TOS, R1_R0_TOS, R0_R1_TOS, | 379 enum TopOfStack { |
380 TOS_STATES}; | 380 NO_TOS_REGISTERS, |
| 381 R0_TOS, |
| 382 R1_TOS, |
| 383 R1_R0_TOS, |
| 384 R0_R1_TOS, |
| 385 TOS_STATES |
| 386 }; |
| 387 |
381 static const int kMaxTOSRegisters = 2; | 388 static const int kMaxTOSRegisters = 2; |
382 | 389 |
383 static const bool kR0InUse[TOS_STATES]; | 390 static const bool kR0InUse[TOS_STATES]; |
384 static const bool kR1InUse[TOS_STATES]; | 391 static const bool kR1InUse[TOS_STATES]; |
385 static const int kVirtualElements[TOS_STATES]; | 392 static const int kVirtualElements[TOS_STATES]; |
386 static const TopOfStack kStateAfterPop[TOS_STATES]; | 393 static const TopOfStack kStateAfterPop[TOS_STATES]; |
387 static const TopOfStack kStateAfterPush[TOS_STATES]; | 394 static const TopOfStack kStateAfterPush[TOS_STATES]; |
388 static const Register kTopRegister[TOS_STATES]; | 395 static const Register kTopRegister[TOS_STATES]; |
389 static const Register kBottomRegister[TOS_STATES]; | 396 static const Register kBottomRegister[TOS_STATES]; |
390 | 397 |
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459 inline bool Equals(VirtualFrame* other); | 466 inline bool Equals(VirtualFrame* other); |
460 | 467 |
461 friend class JumpTarget; | 468 friend class JumpTarget; |
462 friend class DeferredCode; | 469 friend class DeferredCode; |
463 }; | 470 }; |
464 | 471 |
465 | 472 |
466 } } // namespace v8::internal | 473 } } // namespace v8::internal |
467 | 474 |
468 #endif // V8_ARM_VIRTUAL_FRAME_ARM_H_ | 475 #endif // V8_ARM_VIRTUAL_FRAME_ARM_H_ |
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