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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 // 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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| 46 FAST_HOLEY_ELEMENTS, | 46 FAST_HOLEY_ELEMENTS, |
| 47 | 47 |
| 48 // The "fast" kind for unwrapped, non-tagged double values. | 48 // The "fast" kind for unwrapped, non-tagged double values. |
| 49 FAST_DOUBLE_ELEMENTS, | 49 FAST_DOUBLE_ELEMENTS, |
| 50 FAST_HOLEY_DOUBLE_ELEMENTS, | 50 FAST_HOLEY_DOUBLE_ELEMENTS, |
| 51 | 51 |
| 52 // The "slow" kind. | 52 // The "slow" kind. |
| 53 DICTIONARY_ELEMENTS, | 53 DICTIONARY_ELEMENTS, |
| 54 NON_STRICT_ARGUMENTS_ELEMENTS, | 54 NON_STRICT_ARGUMENTS_ELEMENTS, |
| 55 // The "fast" kind for external arrays | 55 // The "fast" kind for external arrays |
| 56 EXTERNAL_BYTE_ELEMENTS, | 56 EXTERNAL_INT8_ELEMENTS, |
| 57 EXTERNAL_UNSIGNED_BYTE_ELEMENTS, | 57 EXTERNAL_UINT8_ELEMENTS, |
| 58 EXTERNAL_SHORT_ELEMENTS, | 58 EXTERNAL_INT16_ELEMENTS, |
| 59 EXTERNAL_UNSIGNED_SHORT_ELEMENTS, | 59 EXTERNAL_UINT16_ELEMENTS, |
| 60 EXTERNAL_INT_ELEMENTS, | 60 EXTERNAL_INT32_ELEMENTS, |
| 61 EXTERNAL_UNSIGNED_INT_ELEMENTS, | 61 EXTERNAL_UINT32_ELEMENTS, |
| 62 EXTERNAL_FLOAT_ELEMENTS, | 62 EXTERNAL_FLOAT32_ELEMENTS, |
| 63 EXTERNAL_DOUBLE_ELEMENTS, | 63 EXTERNAL_FLOAT64_ELEMENTS, |
| 64 EXTERNAL_PIXEL_ELEMENTS, | 64 EXTERNAL_UINT8_CLAMPED_ELEMENTS, |
| 65 | 65 |
| 66 // Fixed typed arrays | 66 // Fixed typed arrays |
| 67 UINT8_ELEMENTS, | 67 UINT8_ELEMENTS, |
| 68 INT8_ELEMENTS, | 68 INT8_ELEMENTS, |
| 69 UINT16_ELEMENTS, | 69 UINT16_ELEMENTS, |
| 70 INT16_ELEMENTS, | 70 INT16_ELEMENTS, |
| 71 UINT32_ELEMENTS, | 71 UINT32_ELEMENTS, |
| 72 INT32_ELEMENTS, | 72 INT32_ELEMENTS, |
| 73 FLOAT32_ELEMENTS, | 73 FLOAT32_ELEMENTS, |
| 74 FLOAT64_ELEMENTS, | 74 FLOAT64_ELEMENTS, |
| 75 UINT8_CLAMPED_ELEMENTS, | 75 UINT8_CLAMPED_ELEMENTS, |
| 76 | 76 |
| 77 // Derived constants from ElementsKind | 77 // Derived constants from ElementsKind |
| 78 FIRST_ELEMENTS_KIND = FAST_SMI_ELEMENTS, | 78 FIRST_ELEMENTS_KIND = FAST_SMI_ELEMENTS, |
| 79 LAST_ELEMENTS_KIND = UINT8_CLAMPED_ELEMENTS, | 79 LAST_ELEMENTS_KIND = UINT8_CLAMPED_ELEMENTS, |
| 80 FIRST_FAST_ELEMENTS_KIND = FAST_SMI_ELEMENTS, | 80 FIRST_FAST_ELEMENTS_KIND = FAST_SMI_ELEMENTS, |
| 81 LAST_FAST_ELEMENTS_KIND = FAST_HOLEY_DOUBLE_ELEMENTS, | 81 LAST_FAST_ELEMENTS_KIND = FAST_HOLEY_DOUBLE_ELEMENTS, |
| 82 FIRST_EXTERNAL_ARRAY_ELEMENTS_KIND = EXTERNAL_BYTE_ELEMENTS, | 82 FIRST_EXTERNAL_ARRAY_ELEMENTS_KIND = EXTERNAL_INT8_ELEMENTS, |
| 83 LAST_EXTERNAL_ARRAY_ELEMENTS_KIND = EXTERNAL_PIXEL_ELEMENTS, | 83 LAST_EXTERNAL_ARRAY_ELEMENTS_KIND = EXTERNAL_UINT8_CLAMPED_ELEMENTS, |
| 84 FIRST_FIXED_TYPED_ARRAY_ELEMENTS_KIND = UINT8_ELEMENTS, | 84 FIRST_FIXED_TYPED_ARRAY_ELEMENTS_KIND = UINT8_ELEMENTS, |
| 85 LAST_FIXED_TYPED_ARRAY_ELEMENTS_KIND = UINT8_CLAMPED_ELEMENTS, | 85 LAST_FIXED_TYPED_ARRAY_ELEMENTS_KIND = UINT8_CLAMPED_ELEMENTS, |
| 86 TERMINAL_FAST_ELEMENTS_KIND = FAST_HOLEY_ELEMENTS | 86 TERMINAL_FAST_ELEMENTS_KIND = FAST_HOLEY_ELEMENTS |
| 87 }; | 87 }; |
| 88 | 88 |
| 89 const int kElementsKindCount = LAST_ELEMENTS_KIND - FIRST_ELEMENTS_KIND + 1; | 89 const int kElementsKindCount = LAST_ELEMENTS_KIND - FIRST_ELEMENTS_KIND + 1; |
| 90 const int kFastElementsKindCount = LAST_FAST_ELEMENTS_KIND - | 90 const int kFastElementsKindCount = LAST_FAST_ELEMENTS_KIND - |
| 91 FIRST_FAST_ELEMENTS_KIND + 1; | 91 FIRST_FAST_ELEMENTS_KIND + 1; |
| 92 | 92 |
| 93 // The number to add to a packed elements kind to reach a holey elements kind | 93 // The number to add to a packed elements kind to reach a holey elements kind |
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| 128 } | 128 } |
| 129 | 129 |
| 130 | 130 |
| 131 inline bool IsFastDoubleElementsKind(ElementsKind kind) { | 131 inline bool IsFastDoubleElementsKind(ElementsKind kind) { |
| 132 return kind == FAST_DOUBLE_ELEMENTS || | 132 return kind == FAST_DOUBLE_ELEMENTS || |
| 133 kind == FAST_HOLEY_DOUBLE_ELEMENTS; | 133 kind == FAST_HOLEY_DOUBLE_ELEMENTS; |
| 134 } | 134 } |
| 135 | 135 |
| 136 | 136 |
| 137 inline bool IsExternalFloatOrDoubleElementsKind(ElementsKind kind) { | 137 inline bool IsExternalFloatOrDoubleElementsKind(ElementsKind kind) { |
| 138 return kind == EXTERNAL_DOUBLE_ELEMENTS || | 138 return kind == EXTERNAL_FLOAT64_ELEMENTS || |
| 139 kind == EXTERNAL_FLOAT_ELEMENTS; | 139 kind == EXTERNAL_FLOAT32_ELEMENTS; |
| 140 } | 140 } |
| 141 | 141 |
| 142 | 142 |
| 143 inline bool IsFixedFloatElementsKind(ElementsKind kind) { | 143 inline bool IsFixedFloatElementsKind(ElementsKind kind) { |
| 144 return kind == FLOAT32_ELEMENTS || kind == FLOAT64_ELEMENTS; | 144 return kind == FLOAT32_ELEMENTS || kind == FLOAT64_ELEMENTS; |
| 145 } | 145 } |
| 146 | 146 |
| 147 | 147 |
| 148 inline bool IsDoubleOrFloatElementsKind(ElementsKind kind) { | 148 inline bool IsDoubleOrFloatElementsKind(ElementsKind kind) { |
| 149 return IsFastDoubleElementsKind(kind) || | 149 return IsFastDoubleElementsKind(kind) || |
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| 255 bool allow_only_packed) { | 255 bool allow_only_packed) { |
| 256 return IsFastElementsKind(elements_kind) && | 256 return IsFastElementsKind(elements_kind) && |
| 257 (elements_kind != TERMINAL_FAST_ELEMENTS_KIND && | 257 (elements_kind != TERMINAL_FAST_ELEMENTS_KIND && |
| 258 (!allow_only_packed || elements_kind != FAST_ELEMENTS)); | 258 (!allow_only_packed || elements_kind != FAST_ELEMENTS)); |
| 259 } | 259 } |
| 260 | 260 |
| 261 | 261 |
| 262 } } // namespace v8::internal | 262 } } // namespace v8::internal |
| 263 | 263 |
| 264 #endif // V8_ELEMENTS_KIND_H_ | 264 #endif // V8_ELEMENTS_KIND_H_ |
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