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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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3676 | 3676 |
3677 // [optimizable]: For FUNCTION kind, tells if it is optimizable. | 3677 // [optimizable]: For FUNCTION kind, tells if it is optimizable. |
3678 inline bool optimizable(); | 3678 inline bool optimizable(); |
3679 inline void set_optimizable(bool value); | 3679 inline void set_optimizable(bool value); |
3680 | 3680 |
3681 // [has_deoptimization_support]: For FUNCTION kind, tells if it has | 3681 // [has_deoptimization_support]: For FUNCTION kind, tells if it has |
3682 // deoptimization support. | 3682 // deoptimization support. |
3683 inline bool has_deoptimization_support(); | 3683 inline bool has_deoptimization_support(); |
3684 inline void set_has_deoptimization_support(bool value); | 3684 inline void set_has_deoptimization_support(bool value); |
3685 | 3685 |
| 3686 // [has_debug_break_slots]: For FUNCTION kind, tells if it has |
| 3687 // been compiled with debug break slots. |
| 3688 inline bool has_debug_break_slots(); |
| 3689 inline void set_has_debug_break_slots(bool value); |
| 3690 |
3686 // [allow_osr_at_loop_nesting_level]: For FUNCTION kind, tells for | 3691 // [allow_osr_at_loop_nesting_level]: For FUNCTION kind, tells for |
3687 // how long the function has been marked for OSR and therefore which | 3692 // how long the function has been marked for OSR and therefore which |
3688 // level of loop nesting we are willing to do on-stack replacement | 3693 // level of loop nesting we are willing to do on-stack replacement |
3689 // for. | 3694 // for. |
3690 inline void set_allow_osr_at_loop_nesting_level(int level); | 3695 inline void set_allow_osr_at_loop_nesting_level(int level); |
3691 inline int allow_osr_at_loop_nesting_level(); | 3696 inline int allow_osr_at_loop_nesting_level(); |
3692 | 3697 |
3693 // [stack_slots]: For kind OPTIMIZED_FUNCTION, the number of stack slots | 3698 // [stack_slots]: For kind OPTIMIZED_FUNCTION, the number of stack slots |
3694 // reserved in the code prologue. | 3699 // reserved in the code prologue. |
3695 inline unsigned stack_slots(); | 3700 inline unsigned stack_slots(); |
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3867 // Byte offsets within kKindSpecificFlagsOffset. | 3872 // Byte offsets within kKindSpecificFlagsOffset. |
3868 static const int kStubMajorKeyOffset = kKindSpecificFlagsOffset; | 3873 static const int kStubMajorKeyOffset = kKindSpecificFlagsOffset; |
3869 static const int kOptimizableOffset = kKindSpecificFlagsOffset; | 3874 static const int kOptimizableOffset = kKindSpecificFlagsOffset; |
3870 static const int kStackSlotsOffset = kKindSpecificFlagsOffset; | 3875 static const int kStackSlotsOffset = kKindSpecificFlagsOffset; |
3871 static const int kCheckTypeOffset = kKindSpecificFlagsOffset; | 3876 static const int kCheckTypeOffset = kKindSpecificFlagsOffset; |
3872 | 3877 |
3873 static const int kUnaryOpTypeOffset = kStubMajorKeyOffset + 1; | 3878 static const int kUnaryOpTypeOffset = kStubMajorKeyOffset + 1; |
3874 static const int kBinaryOpTypeOffset = kStubMajorKeyOffset + 1; | 3879 static const int kBinaryOpTypeOffset = kStubMajorKeyOffset + 1; |
3875 static const int kCompareStateOffset = kStubMajorKeyOffset + 1; | 3880 static const int kCompareStateOffset = kStubMajorKeyOffset + 1; |
3876 static const int kToBooleanTypeOffset = kStubMajorKeyOffset + 1; | 3881 static const int kToBooleanTypeOffset = kStubMajorKeyOffset + 1; |
3877 static const int kHasDeoptimizationSupportOffset = kOptimizableOffset + 1; | 3882 |
| 3883 static const int kFullCodeFlags = kOptimizableOffset + 1; |
| 3884 class FullCodeFlagsHasDeoptimizationSupportField: |
| 3885 public BitField<bool, 0, 1> {}; // NOLINT |
| 3886 class FullCodeFlagsHasDebugBreakSlotsField: public BitField<bool, 1, 1> {}; |
3878 | 3887 |
3879 static const int kBinaryOpReturnTypeOffset = kBinaryOpTypeOffset + 1; | 3888 static const int kBinaryOpReturnTypeOffset = kBinaryOpTypeOffset + 1; |
3880 static const int kAllowOSRAtLoopNestingLevelOffset = | 3889 |
3881 kHasDeoptimizationSupportOffset + 1; | 3890 static const int kAllowOSRAtLoopNestingLevelOffset = kFullCodeFlags + 1; |
3882 | 3891 |
3883 static const int kSafepointTableOffsetOffset = kStackSlotsOffset + kIntSize; | 3892 static const int kSafepointTableOffsetOffset = kStackSlotsOffset + kIntSize; |
3884 static const int kStackCheckTableOffsetOffset = kStackSlotsOffset + kIntSize; | 3893 static const int kStackCheckTableOffsetOffset = kStackSlotsOffset + kIntSize; |
3885 | 3894 |
3886 // Flags layout. BitField<type, shift, size>. | 3895 // Flags layout. BitField<type, shift, size>. |
3887 class ICStateField: public BitField<InlineCacheState, 0, 3> {}; | 3896 class ICStateField: public BitField<InlineCacheState, 0, 3> {}; |
3888 class ICInLoopField: public BitField<InLoopFlag, 3, 1> {}; | 3897 class ICInLoopField: public BitField<InLoopFlag, 3, 1> {}; |
3889 class TypeField: public BitField<PropertyType, 4, 4> {}; | 3898 class TypeField: public BitField<PropertyType, 4, 4> {}; |
3890 class KindField: public BitField<Kind, 8, 4> {}; | 3899 class KindField: public BitField<Kind, 8, 4> {}; |
3891 class CacheHolderField: public BitField<InlineCacheHolderFlag, 12, 1> {}; | 3900 class CacheHolderField: public BitField<InlineCacheHolderFlag, 12, 1> {}; |
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7451 } else { | 7460 } else { |
7452 value &= ~(1 << bit_position); | 7461 value &= ~(1 << bit_position); |
7453 } | 7462 } |
7454 return value; | 7463 return value; |
7455 } | 7464 } |
7456 }; | 7465 }; |
7457 | 7466 |
7458 } } // namespace v8::internal | 7467 } } // namespace v8::internal |
7459 | 7468 |
7460 #endif // V8_OBJECTS_H_ | 7469 #endif // V8_OBJECTS_H_ |
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