Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/ci/ciConstant.hpp
src/share/vm/ci/ciConstant.hpp
- changeset 5658
- edb5ab0f3fe5
- parent 3138
- f6f3bb0ee072
- child 6198
- 55fb97c4c58d
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| 5656:cd16d587b0fa | 5658:edb5ab0f3fe5 |
|---|---|
| 39 | 39 |
| 40 BasicType _type; | 40 BasicType _type; |
| 41 union { | 41 union { |
| 42 jint _int; | 42 jint _int; |
| 43 jlong _long; | 43 jlong _long; |
| 44 jint _long_half[2]; | |
| 45 jfloat _float; | 44 jfloat _float; |
| 46 jdouble _double; | 45 jdouble _double; |
| 47 ciObject* _object; | 46 ciObject* _object; |
| 48 } _value; | 47 } _value; |
| 49 | 48 |
| 109 ciObject* as_object() const { | 108 ciObject* as_object() const { |
| 110 assert(basic_type() == T_OBJECT || basic_type() == T_ARRAY, "wrong type"); | 109 assert(basic_type() == T_OBJECT || basic_type() == T_ARRAY, "wrong type"); |
| 111 return _value._object; | 110 return _value._object; |
| 112 } | 111 } |
| 113 | 112 |
| 113 bool is_null_or_zero() const { | |
| 114 if (!is_java_primitive(basic_type())) { | |
| 115 return as_object()->is_null_object(); | |
| 116 } else if (type2size[basic_type()] == 1) { | |
| 117 // treat float bits as int, to avoid comparison with -0 and NaN | |
| 118 return (_value._int == 0); | |
| 119 } else if (type2size[basic_type()] == 2) { | |
| 120 // treat double bits as long, to avoid comparison with -0 and NaN | |
| 121 return (_value._long == 0); | |
| 122 } else { | |
| 123 return false; | |
| 124 } | |
| 125 } | |
| 126 | |
| 114 // Debugging output | 127 // Debugging output |
| 115 void print(); | 128 void print(); |
| 116 }; | 129 }; |
| 117 | 130 |
| 118 #endif // SHARE_VM_CI_CICONSTANT_HPP | 131 #endif // SHARE_VM_CI_CICONSTANT_HPP |
