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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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1898 return target_.is_identical_to(b->target()); | 1898 return target_.is_identical_to(b->target()); |
1899 } | 1899 } |
1900 | 1900 |
1901 private: | 1901 private: |
1902 Handle<JSFunction> target_; | 1902 Handle<JSFunction> target_; |
1903 }; | 1903 }; |
1904 | 1904 |
1905 | 1905 |
1906 class HCheckInstanceType: public HUnaryOperation { | 1906 class HCheckInstanceType: public HUnaryOperation { |
1907 public: | 1907 public: |
1908 static HCheckInstanceType* NewIsJSObjectOrJSFunction(HValue* value) { | 1908 static HCheckInstanceType* NewIsSpecObject(HValue* value) { |
1909 return new HCheckInstanceType(value, IS_JS_OBJECT_OR_JS_FUNCTION); | 1909 return new HCheckInstanceType(value, IS_SPEC_OBJECT); |
1910 } | 1910 } |
1911 static HCheckInstanceType* NewIsJSArray(HValue* value) { | 1911 static HCheckInstanceType* NewIsJSArray(HValue* value) { |
1912 return new HCheckInstanceType(value, IS_JS_ARRAY); | 1912 return new HCheckInstanceType(value, IS_JS_ARRAY); |
1913 } | 1913 } |
1914 static HCheckInstanceType* NewIsString(HValue* value) { | 1914 static HCheckInstanceType* NewIsString(HValue* value) { |
1915 return new HCheckInstanceType(value, IS_STRING); | 1915 return new HCheckInstanceType(value, IS_STRING); |
1916 } | 1916 } |
1917 static HCheckInstanceType* NewIsSymbol(HValue* value) { | 1917 static HCheckInstanceType* NewIsSymbol(HValue* value) { |
1918 return new HCheckInstanceType(value, IS_SYMBOL); | 1918 return new HCheckInstanceType(value, IS_SYMBOL); |
1919 } | 1919 } |
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1947 // TODO(ager): It could be nice to allow the ommision of instance | 1947 // TODO(ager): It could be nice to allow the ommision of instance |
1948 // type checks if we have already performed an instance type check | 1948 // type checks if we have already performed an instance type check |
1949 // with a larger range. | 1949 // with a larger range. |
1950 virtual bool DataEquals(HValue* other) { | 1950 virtual bool DataEquals(HValue* other) { |
1951 HCheckInstanceType* b = HCheckInstanceType::cast(other); | 1951 HCheckInstanceType* b = HCheckInstanceType::cast(other); |
1952 return check_ == b->check_; | 1952 return check_ == b->check_; |
1953 } | 1953 } |
1954 | 1954 |
1955 private: | 1955 private: |
1956 enum Check { | 1956 enum Check { |
1957 IS_JS_OBJECT_OR_JS_FUNCTION, | 1957 IS_SPEC_OBJECT, |
1958 IS_JS_ARRAY, | 1958 IS_JS_ARRAY, |
1959 IS_STRING, | 1959 IS_STRING, |
1960 IS_SYMBOL, | 1960 IS_SYMBOL, |
1961 LAST_INTERVAL_CHECK = IS_JS_ARRAY | 1961 LAST_INTERVAL_CHECK = IS_JS_ARRAY |
1962 }; | 1962 }; |
1963 | 1963 |
1964 HCheckInstanceType(HValue* value, Check check) | 1964 HCheckInstanceType(HValue* value, Check check) |
1965 : HUnaryOperation(value), check_(check) { | 1965 : HUnaryOperation(value), check_(check) { |
1966 set_representation(Representation::Tagged()); | 1966 set_representation(Representation::Tagged()); |
1967 SetFlag(kUseGVN); | 1967 SetFlag(kUseGVN); |
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4032 | 4032 |
4033 DECLARE_CONCRETE_INSTRUCTION(In) | 4033 DECLARE_CONCRETE_INSTRUCTION(In) |
4034 }; | 4034 }; |
4035 | 4035 |
4036 #undef DECLARE_INSTRUCTION | 4036 #undef DECLARE_INSTRUCTION |
4037 #undef DECLARE_CONCRETE_INSTRUCTION | 4037 #undef DECLARE_CONCRETE_INSTRUCTION |
4038 | 4038 |
4039 } } // namespace v8::internal | 4039 } } // namespace v8::internal |
4040 | 4040 |
4041 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ | 4041 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ |
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