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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_OBJECTS_H_ | 5 #ifndef V8_OBJECTS_H_ |
6 #define V8_OBJECTS_H_ | 6 #define V8_OBJECTS_H_ |
7 | 7 |
8 #include "src/allocation.h" | 8 #include "src/allocation.h" |
9 #include "src/assert-scope.h" | 9 #include "src/assert-scope.h" |
10 #include "src/builtins.h" | 10 #include "src/builtins.h" |
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5871 | 5871 |
5872 static const int kFullCodeFlags = kOptimizableOffset + 1; | 5872 static const int kFullCodeFlags = kOptimizableOffset + 1; |
5873 class FullCodeFlagsHasDeoptimizationSupportField: | 5873 class FullCodeFlagsHasDeoptimizationSupportField: |
5874 public BitField<bool, 0, 1> {}; // NOLINT | 5874 public BitField<bool, 0, 1> {}; // NOLINT |
5875 class FullCodeFlagsHasDebugBreakSlotsField: public BitField<bool, 1, 1> {}; | 5875 class FullCodeFlagsHasDebugBreakSlotsField: public BitField<bool, 1, 1> {}; |
5876 class FullCodeFlagsIsCompiledOptimizable: public BitField<bool, 2, 1> {}; | 5876 class FullCodeFlagsIsCompiledOptimizable: public BitField<bool, 2, 1> {}; |
5877 | 5877 |
5878 static const int kProfilerTicksOffset = kFullCodeFlags + 1; | 5878 static const int kProfilerTicksOffset = kFullCodeFlags + 1; |
5879 | 5879 |
5880 // Flags layout. BitField<type, shift, size>. | 5880 // Flags layout. BitField<type, shift, size>. |
5881 class ICStateField: public BitField<InlineCacheState, 0, 3> {}; | 5881 class ICStateField : public BitField<InlineCacheState, 0, 4> {}; |
5882 class TypeField: public BitField<StubType, 3, 1> {}; | 5882 class TypeField : public BitField<StubType, 4, 1> {}; |
5883 class CacheHolderField : public BitField<CacheHolderFlag, 4, 2> {}; | 5883 class CacheHolderField : public BitField<CacheHolderFlag, 5, 2> {}; |
5884 class KindField: public BitField<Kind, 6, 4> {}; | 5884 class KindField : public BitField<Kind, 7, 4> {}; |
5885 // TODO(bmeurer): Bit 10 is available for free use. :-) | |
5886 class ExtraICStateField: public BitField<ExtraICState, 11, | 5885 class ExtraICStateField: public BitField<ExtraICState, 11, |
5887 PlatformSmiTagging::kSmiValueSize - 11 + 1> {}; // NOLINT | 5886 PlatformSmiTagging::kSmiValueSize - 11 + 1> {}; // NOLINT |
5888 | 5887 |
5889 // KindSpecificFlags1 layout (STUB and OPTIMIZED_FUNCTION) | 5888 // KindSpecificFlags1 layout (STUB and OPTIMIZED_FUNCTION) |
5890 static const int kStackSlotsFirstBit = 0; | 5889 static const int kStackSlotsFirstBit = 0; |
5891 static const int kStackSlotsBitCount = 24; | 5890 static const int kStackSlotsBitCount = 24; |
5892 static const int kHasFunctionCacheBit = | 5891 static const int kHasFunctionCacheBit = |
5893 kStackSlotsFirstBit + kStackSlotsBitCount; | 5892 kStackSlotsFirstBit + kStackSlotsBitCount; |
5894 static const int kMarkedForDeoptimizationBit = kHasFunctionCacheBit + 1; | 5893 static const int kMarkedForDeoptimizationBit = kHasFunctionCacheBit + 1; |
5895 static const int kWeakStubBit = kMarkedForDeoptimizationBit + 1; | 5894 static const int kWeakStubBit = kMarkedForDeoptimizationBit + 1; |
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11272 } else { | 11271 } else { |
11273 value &= ~(1 << bit_position); | 11272 value &= ~(1 << bit_position); |
11274 } | 11273 } |
11275 return value; | 11274 return value; |
11276 } | 11275 } |
11277 }; | 11276 }; |
11278 | 11277 |
11279 } } // namespace v8::internal | 11278 } } // namespace v8::internal |
11280 | 11279 |
11281 #endif // V8_OBJECTS_H_ | 11280 #endif // V8_OBJECTS_H_ |
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