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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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_COMPILER_TYPE_CACHE_H_ | 5 #ifndef V8_COMPILER_TYPE_CACHE_H_ |
6 #define V8_COMPILER_TYPE_CACHE_H_ | 6 #define V8_COMPILER_TYPE_CACHE_H_ |
7 | 7 |
8 #include "src/date.h" | 8 #include "src/date.h" |
9 #include "src/types.h" | 9 #include "src/types.h" |
10 | 10 |
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97 // The JSTyped::length property always contains a tagged number in the range | 97 // The JSTyped::length property always contains a tagged number in the range |
98 // [0, kMaxSmiValue]. | 98 // [0, kMaxSmiValue]. |
99 Type* const kJSTypedArrayLengthType = | 99 Type* const kJSTypedArrayLengthType = |
100 CreateNative(Type::UnsignedSmall(), Type::TaggedSigned()); | 100 CreateNative(Type::UnsignedSmall(), Type::TaggedSigned()); |
101 | 101 |
102 // The String::length property always contains a smi in the range | 102 // The String::length property always contains a smi in the range |
103 // [0, String::kMaxLength]. | 103 // [0, String::kMaxLength]. |
104 Type* const kStringLengthType = | 104 Type* const kStringLengthType = |
105 CreateNative(CreateRange(0.0, String::kMaxLength), Type::TaggedSigned()); | 105 CreateNative(CreateRange(0.0, String::kMaxLength), Type::TaggedSigned()); |
106 | 106 |
107 // The JSDate::value properties always contains a tagged number in the range | 107 // The JSDate::day property always contains a tagged number in the range |
| 108 // [1, 31] or NaN. |
| 109 Type* const kJSDateDayType = |
| 110 Type::Union(CreateRange(1, 31.0), Type::NaN(), zone()); |
| 111 |
| 112 // The JSDate::hour property always contains a tagged number in the range |
| 113 // [0, 23] or NaN. |
| 114 Type* const kJSDateHourType = |
| 115 Type::Union(CreateRange(0, 23.0), Type::NaN(), zone()); |
| 116 |
| 117 // The JSDate::minute property always contains a tagged number in the range |
| 118 // [0, 59] or NaN. |
| 119 Type* const kJSDateMinuteType = |
| 120 Type::Union(CreateRange(0, 59.0), Type::NaN(), zone()); |
| 121 |
| 122 // The JSDate::month property always contains a tagged number in the range |
| 123 // [0, 11] or NaN. |
| 124 Type* const kJSDateMonthType = |
| 125 Type::Union(CreateRange(0, 11.0), Type::NaN(), zone()); |
| 126 |
| 127 // The JSDate::second property always contains a tagged number in the range |
| 128 // [0, 59] or NaN. |
| 129 Type* const kJSDateSecondType = kJSDateMinuteType; |
| 130 |
| 131 // The JSDate::value property always contains a tagged number in the range |
108 // [-kMaxTimeInMs, kMaxTimeInMs] or NaN. | 132 // [-kMaxTimeInMs, kMaxTimeInMs] or NaN. |
109 Type* const kJSDateValueType = Type::Union( | 133 Type* const kJSDateValueType = Type::Union( |
110 CreateRange(-DateCache::kMaxTimeInMs, DateCache::kMaxTimeInMs), | 134 CreateRange(-DateCache::kMaxTimeInMs, DateCache::kMaxTimeInMs), |
111 Type::NaN(), zone()); | 135 Type::NaN(), zone()); |
112 | 136 |
| 137 // The JSDate::weekday property always contains a tagged number in the range |
| 138 // [0, 6] or NaN. |
| 139 Type* const kJSDateWeekdayType = |
| 140 Type::Union(CreateRange(0, 6.0), Type::NaN(), zone()); |
| 141 |
| 142 // The JSDate::year property always contains a tagged number in the signed |
| 143 // small range or NaN. |
| 144 Type* const kJSDateYearType = |
| 145 Type::Union(Type::SignedSmall(), Type::NaN(), zone()); |
| 146 |
113 #define TYPED_ARRAY(TypeName, type_name, TYPE_NAME, ctype, size) \ | 147 #define TYPED_ARRAY(TypeName, type_name, TYPE_NAME, ctype, size) \ |
114 Type* const k##TypeName##Array = CreateArray(k##TypeName); | 148 Type* const k##TypeName##Array = CreateArray(k##TypeName); |
115 TYPED_ARRAYS(TYPED_ARRAY) | 149 TYPED_ARRAYS(TYPED_ARRAY) |
116 #undef TYPED_ARRAY | 150 #undef TYPED_ARRAY |
117 | 151 |
118 private: | 152 private: |
119 Type* CreateArray(Type* element) { return Type::Array(element, zone()); } | 153 Type* CreateArray(Type* element) { return Type::Array(element, zone()); } |
120 | 154 |
121 Type* CreateArrayFunction(Type* array) { | 155 Type* CreateArrayFunction(Type* array) { |
122 Type* arg1 = Type::Union(Type::Unsigned32(), Type::Object(), zone()); | 156 Type* arg1 = Type::Union(Type::Unsigned32(), Type::Object(), zone()); |
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140 } | 174 } |
141 | 175 |
142 Zone* zone() { return &zone_; } | 176 Zone* zone() { return &zone_; } |
143 }; | 177 }; |
144 | 178 |
145 } // namespace compiler | 179 } // namespace compiler |
146 } // namespace internal | 180 } // namespace internal |
147 } // namespace v8 | 181 } // namespace v8 |
148 | 182 |
149 #endif // V8_COMPILER_TYPE_CACHE_H_ | 183 #endif // V8_COMPILER_TYPE_CACHE_H_ |
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