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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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| 3022   return result; | 3022   return result; | 
| 3023 } | 3023 } | 
| 3024 | 3024 | 
| 3025 | 3025 | 
| 3026 Code::ExtraICState Code::extra_ic_state() { | 3026 Code::ExtraICState Code::extra_ic_state() { | 
| 3027   ASSERT(is_inline_cache_stub()); | 3027   ASSERT(is_inline_cache_stub()); | 
| 3028   return ExtractExtraICStateFromFlags(flags()); | 3028   return ExtractExtraICStateFromFlags(flags()); | 
| 3029 } | 3029 } | 
| 3030 | 3030 | 
| 3031 | 3031 | 
| 3032 PropertyType Code::type() { | 3032 Code::StubType Code::type() { | 
| 3033   return ExtractTypeFromFlags(flags()); | 3033   return ExtractTypeFromFlags(flags()); | 
| 3034 } | 3034 } | 
| 3035 | 3035 | 
| 3036 | 3036 | 
| 3037 int Code::arguments_count() { | 3037 int Code::arguments_count() { | 
| 3038   ASSERT(is_call_stub() || is_keyed_call_stub() || kind() == STUB); | 3038   ASSERT(is_call_stub() || is_keyed_call_stub() || kind() == STUB); | 
| 3039   return ExtractArgumentsCountFromFlags(flags()); | 3039   return ExtractArgumentsCountFromFlags(flags()); | 
| 3040 } | 3040 } | 
| 3041 | 3041 | 
| 3042 | 3042 | 
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| 3294 | 3294 | 
| 3295 bool Code::is_inline_cache_stub() { | 3295 bool Code::is_inline_cache_stub() { | 
| 3296   Kind kind = this->kind(); | 3296   Kind kind = this->kind(); | 
| 3297   return kind >= FIRST_IC_KIND && kind <= LAST_IC_KIND; | 3297   return kind >= FIRST_IC_KIND && kind <= LAST_IC_KIND; | 
| 3298 } | 3298 } | 
| 3299 | 3299 | 
| 3300 | 3300 | 
| 3301 Code::Flags Code::ComputeFlags(Kind kind, | 3301 Code::Flags Code::ComputeFlags(Kind kind, | 
| 3302                                InlineCacheState ic_state, | 3302                                InlineCacheState ic_state, | 
| 3303                                ExtraICState extra_ic_state, | 3303                                ExtraICState extra_ic_state, | 
| 3304                                PropertyType type, | 3304                                StubType type, | 
| 3305                                int argc, | 3305                                int argc, | 
| 3306                                InlineCacheHolderFlag holder) { | 3306                                InlineCacheHolderFlag holder) { | 
| 3307   // Extra IC state is only allowed for call IC stubs or for store IC | 3307   // Extra IC state is only allowed for call IC stubs or for store IC | 
| 3308   // stubs. | 3308   // stubs. | 
| 3309   ASSERT(extra_ic_state == kNoExtraICState || | 3309   ASSERT(extra_ic_state == kNoExtraICState || | 
| 3310          kind == CALL_IC || | 3310          kind == CALL_IC || | 
| 3311          kind == STORE_IC || | 3311          kind == STORE_IC || | 
| 3312          kind == KEYED_STORE_IC); | 3312          kind == KEYED_STORE_IC); | 
| 3313   // Compute the bit mask. | 3313   // Compute the bit mask. | 
| 3314   int bits = KindField::encode(kind) | 3314   int bits = KindField::encode(kind) | 
| 3315       | ICStateField::encode(ic_state) | 3315       | ICStateField::encode(ic_state) | 
| 3316       | TypeField::encode(type) | 3316       | TypeField::encode(type) | 
| 3317       | ExtraICStateField::encode(extra_ic_state) | 3317       | ExtraICStateField::encode(extra_ic_state) | 
| 3318       | (argc << kArgumentsCountShift) | 3318       | (argc << kArgumentsCountShift) | 
| 3319       | CacheHolderField::encode(holder); | 3319       | CacheHolderField::encode(holder); | 
| 3320   return static_cast<Flags>(bits); | 3320   return static_cast<Flags>(bits); | 
| 3321 } | 3321 } | 
| 3322 | 3322 | 
| 3323 | 3323 | 
| 3324 Code::Flags Code::ComputeMonomorphicFlags(Kind kind, | 3324 Code::Flags Code::ComputeMonomorphicFlags(Kind kind, | 
| 3325                                           PropertyType type, | 3325                                           StubType type, | 
| 3326                                           ExtraICState extra_ic_state, | 3326                                           ExtraICState extra_ic_state, | 
| 3327                                           InlineCacheHolderFlag holder, | 3327                                           InlineCacheHolderFlag holder, | 
| 3328                                           int argc) { | 3328                                           int argc) { | 
| 3329   return ComputeFlags(kind, MONOMORPHIC, extra_ic_state, type, argc, holder); | 3329   return ComputeFlags(kind, MONOMORPHIC, extra_ic_state, type, argc, holder); | 
| 3330 } | 3330 } | 
| 3331 | 3331 | 
| 3332 | 3332 | 
| 3333 Code::Kind Code::ExtractKindFromFlags(Flags flags) { | 3333 Code::Kind Code::ExtractKindFromFlags(Flags flags) { | 
| 3334   return KindField::decode(flags); | 3334   return KindField::decode(flags); | 
| 3335 } | 3335 } | 
| 3336 | 3336 | 
| 3337 | 3337 | 
| 3338 InlineCacheState Code::ExtractICStateFromFlags(Flags flags) { | 3338 InlineCacheState Code::ExtractICStateFromFlags(Flags flags) { | 
| 3339   return ICStateField::decode(flags); | 3339   return ICStateField::decode(flags); | 
| 3340 } | 3340 } | 
| 3341 | 3341 | 
| 3342 | 3342 | 
| 3343 Code::ExtraICState Code::ExtractExtraICStateFromFlags(Flags flags) { | 3343 Code::ExtraICState Code::ExtractExtraICStateFromFlags(Flags flags) { | 
| 3344   return ExtraICStateField::decode(flags); | 3344   return ExtraICStateField::decode(flags); | 
| 3345 } | 3345 } | 
| 3346 | 3346 | 
| 3347 | 3347 | 
| 3348 PropertyType Code::ExtractTypeFromFlags(Flags flags) { | 3348 Code::StubType Code::ExtractTypeFromFlags(Flags flags) { | 
| 3349   return TypeField::decode(flags); | 3349   return TypeField::decode(flags); | 
| 3350 } | 3350 } | 
| 3351 | 3351 | 
| 3352 | 3352 | 
| 3353 int Code::ExtractArgumentsCountFromFlags(Flags flags) { | 3353 int Code::ExtractArgumentsCountFromFlags(Flags flags) { | 
| 3354   return (flags & kArgumentsCountMask) >> kArgumentsCountShift; | 3354   return (flags & kArgumentsCountMask) >> kArgumentsCountShift; | 
| 3355 } | 3355 } | 
| 3356 | 3356 | 
| 3357 | 3357 | 
| 3358 InlineCacheHolderFlag Code::ExtractCacheHolderFromFlags(Flags flags) { | 3358 InlineCacheHolderFlag Code::ExtractCacheHolderFromFlags(Flags flags) { | 
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| 5185 #undef WRITE_UINT32_FIELD | 5185 #undef WRITE_UINT32_FIELD | 
| 5186 #undef READ_SHORT_FIELD | 5186 #undef READ_SHORT_FIELD | 
| 5187 #undef WRITE_SHORT_FIELD | 5187 #undef WRITE_SHORT_FIELD | 
| 5188 #undef READ_BYTE_FIELD | 5188 #undef READ_BYTE_FIELD | 
| 5189 #undef WRITE_BYTE_FIELD | 5189 #undef WRITE_BYTE_FIELD | 
| 5190 | 5190 | 
| 5191 | 5191 | 
| 5192 } }  // namespace v8::internal | 5192 } }  // namespace v8::internal | 
| 5193 | 5193 | 
| 5194 #endif  // V8_OBJECTS_INL_H_ | 5194 #endif  // V8_OBJECTS_INL_H_ | 
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