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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_ELEMENTS_KIND_H_ | 5 #ifndef V8_ELEMENTS_KIND_H_ |
| 6 #define V8_ELEMENTS_KIND_H_ | 6 #define V8_ELEMENTS_KIND_H_ |
| 7 | 7 |
| 8 #include "src/checks.h" | 8 #include "src/checks.h" |
| 9 | 9 |
| 10 namespace v8 { | 10 namespace v8 { |
| (...skipping 88 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 99 } | 99 } |
| 100 | 100 |
| 101 | 101 |
| 102 inline bool IsFixedTypedArrayElementsKind(ElementsKind kind) { | 102 inline bool IsFixedTypedArrayElementsKind(ElementsKind kind) { |
| 103 return kind >= FIRST_FIXED_TYPED_ARRAY_ELEMENTS_KIND && | 103 return kind >= FIRST_FIXED_TYPED_ARRAY_ELEMENTS_KIND && |
| 104 kind <= LAST_FIXED_TYPED_ARRAY_ELEMENTS_KIND; | 104 kind <= LAST_FIXED_TYPED_ARRAY_ELEMENTS_KIND; |
| 105 } | 105 } |
| 106 | 106 |
| 107 | 107 |
| 108 inline bool IsFastElementsKind(ElementsKind kind) { | 108 inline bool IsFastElementsKind(ElementsKind kind) { |
| 109 ASSERT(FIRST_FAST_ELEMENTS_KIND == 0); | 109 DCHECK(FIRST_FAST_ELEMENTS_KIND == 0); |
| 110 return kind <= FAST_HOLEY_DOUBLE_ELEMENTS; | 110 return kind <= FAST_HOLEY_DOUBLE_ELEMENTS; |
| 111 } | 111 } |
| 112 | 112 |
| 113 | 113 |
| 114 inline bool IsTransitionElementsKind(ElementsKind kind) { | 114 inline bool IsTransitionElementsKind(ElementsKind kind) { |
| 115 return IsFastElementsKind(kind) || IsFixedTypedArrayElementsKind(kind); | 115 return IsFastElementsKind(kind) || IsFixedTypedArrayElementsKind(kind); |
| 116 } | 116 } |
| 117 | 117 |
| 118 | 118 |
| 119 inline bool IsFastDoubleElementsKind(ElementsKind kind) { | 119 inline bool IsFastDoubleElementsKind(ElementsKind kind) { |
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| 202 return FAST_HOLEY_DOUBLE_ELEMENTS; | 202 return FAST_HOLEY_DOUBLE_ELEMENTS; |
| 203 } | 203 } |
| 204 if (packed_kind == FAST_ELEMENTS) { | 204 if (packed_kind == FAST_ELEMENTS) { |
| 205 return FAST_HOLEY_ELEMENTS; | 205 return FAST_HOLEY_ELEMENTS; |
| 206 } | 206 } |
| 207 return packed_kind; | 207 return packed_kind; |
| 208 } | 208 } |
| 209 | 209 |
| 210 | 210 |
| 211 inline ElementsKind FastSmiToObjectElementsKind(ElementsKind from_kind) { | 211 inline ElementsKind FastSmiToObjectElementsKind(ElementsKind from_kind) { |
| 212 ASSERT(IsFastSmiElementsKind(from_kind)); | 212 DCHECK(IsFastSmiElementsKind(from_kind)); |
| 213 return (from_kind == FAST_SMI_ELEMENTS) | 213 return (from_kind == FAST_SMI_ELEMENTS) |
| 214 ? FAST_ELEMENTS | 214 ? FAST_ELEMENTS |
| 215 : FAST_HOLEY_ELEMENTS; | 215 : FAST_HOLEY_ELEMENTS; |
| 216 } | 216 } |
| 217 | 217 |
| 218 | 218 |
| 219 inline bool IsSimpleMapChangeTransition(ElementsKind from_kind, | 219 inline bool IsSimpleMapChangeTransition(ElementsKind from_kind, |
| 220 ElementsKind to_kind) { | 220 ElementsKind to_kind) { |
| 221 return (GetHoleyElementsKind(from_kind) == to_kind) || | 221 return (GetHoleyElementsKind(from_kind) == to_kind) || |
| 222 (IsFastSmiElementsKind(from_kind) && | 222 (IsFastSmiElementsKind(from_kind) && |
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| 243 bool allow_only_packed) { | 243 bool allow_only_packed) { |
| 244 return IsFastElementsKind(elements_kind) && | 244 return IsFastElementsKind(elements_kind) && |
| 245 (elements_kind != TERMINAL_FAST_ELEMENTS_KIND && | 245 (elements_kind != TERMINAL_FAST_ELEMENTS_KIND && |
| 246 (!allow_only_packed || elements_kind != FAST_ELEMENTS)); | 246 (!allow_only_packed || elements_kind != FAST_ELEMENTS)); |
| 247 } | 247 } |
| 248 | 248 |
| 249 | 249 |
| 250 } } // namespace v8::internal | 250 } } // namespace v8::internal |
| 251 | 251 |
| 252 #endif // V8_ELEMENTS_KIND_H_ | 252 #endif // V8_ELEMENTS_KIND_H_ |
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