Mercurial > hg > graal-compiler
annotate src/share/vm/ci/ciArrayKlass.hpp @ 1941:79d04223b8a5
Added caching for resolved types and resolved fields.
This is crucial, because the local load elimination will lead to wrong results, if field equality (of two RiField objects with the same object and the same RiType) is not given. The caching makes sure that the default equals implementation is sufficient.
| author | Thomas Wuerthinger <wuerthinger@ssw.jku.at> |
|---|---|
| date | Tue, 28 Dec 2010 18:33:26 +0100 |
| parents | c18cbe5936b8 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved. |
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| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
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| 13 * accompanied this code). | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 // ciArrayKlass | |
| 26 // | |
| 27 // This class, and its subclasses represent klassOops in the | |
| 28 // HotSpot virtual machine whose Klass part is an arrayKlass. | |
| 29 class ciArrayKlass : public ciKlass { | |
| 30 private: | |
| 31 jint _dimension; | |
| 32 | |
| 33 protected: | |
| 34 ciArrayKlass(KlassHandle h_k); | |
| 35 ciArrayKlass(ciSymbol* name, int dimension, ciKlass* klass); | |
| 36 | |
| 37 arrayKlass* get_arrayKlass() { | |
| 38 return (arrayKlass*)get_Klass(); | |
| 39 } | |
| 40 | |
| 41 const char* type_string() { return "ciArrayKlass"; } | |
| 42 | |
| 43 public: | |
| 44 jint dimension() { return _dimension; } | |
| 45 ciType* element_type(); // JLS calls this the "component type" | |
| 46 ciType* base_element_type(); // JLS calls this the "element type" | |
| 47 bool is_leaf_type(); // No subtypes of this array type. | |
| 48 | |
| 49 ciInstance* component_mirror() { | |
| 50 // This is a real field in arrayKlass, but we derive it from element_type. | |
| 51 return element_type()->java_mirror(); | |
| 52 } | |
| 53 | |
| 54 // What kind of vmObject is this? | |
| 55 bool is_array_klass() { return true; } | |
| 56 bool is_java_klass() { return true; } | |
| 57 | |
| 58 static ciArrayKlass* make(ciType* element_type); | |
| 59 }; |