Mercurial > hg > truffle
annotate src/share/vm/ci/ciArrayKlass.cpp @ 14518:d8041d695d19
Merged with jdk9/dev/hotspot changeset 3812c088b945
| author | twisti |
|---|---|
| date | Tue, 11 Mar 2014 18:45:59 -0700 |
| parents | d8ce2825b193 |
| children |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
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| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
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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 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "ci/ciArrayKlass.hpp" | |
| 27 #include "ci/ciObjArrayKlass.hpp" | |
| 28 #include "ci/ciTypeArrayKlass.hpp" | |
| 29 #include "ci/ciUtilities.hpp" | |
| 0 | 30 |
| 31 // ciArrayKlass | |
| 32 // | |
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33 // This class represents a Klass* in the HotSpot virtual machine |
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34 // whose Klass part in an ArrayKlass. |
| 0 | 35 |
| 36 // ------------------------------------------------------------------ | |
| 37 // ciArrayKlass::ciArrayKlass | |
| 38 // | |
| 39 // Loaded array klass. | |
| 40 ciArrayKlass::ciArrayKlass(KlassHandle h_k) : ciKlass(h_k) { | |
| 41 assert(get_Klass()->oop_is_array(), "wrong type"); | |
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42 _dimension = get_ArrayKlass()->dimension(); |
| 0 | 43 } |
| 44 | |
| 45 // ------------------------------------------------------------------ | |
| 46 // ciArrayKlass::ciArrayKlass | |
| 47 // | |
| 48 // Unloaded array klass. | |
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49 ciArrayKlass::ciArrayKlass(ciSymbol* name, int dimension, BasicType bt) |
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50 : ciKlass(name, bt) { |
| 0 | 51 _dimension = dimension; |
| 52 } | |
| 53 | |
| 54 // ------------------------------------------------------------------ | |
| 55 // ciArrayKlass::element_type | |
| 56 // | |
| 57 // What type is obtained when this array is indexed once? | |
| 58 ciType* ciArrayKlass::element_type() { | |
| 59 if (is_type_array_klass()) { | |
| 60 return ciType::make(as_type_array_klass()->element_type()); | |
| 61 } else { | |
| 62 return as_obj_array_klass()->element_klass()->as_klass(); | |
| 63 } | |
| 64 } | |
| 65 | |
| 66 | |
| 67 // ------------------------------------------------------------------ | |
| 68 // ciArrayKlass::base_element_type | |
| 69 // | |
| 70 // What type is obtained when this array is indexed as many times as possible? | |
| 71 ciType* ciArrayKlass::base_element_type() { | |
| 72 if (is_type_array_klass()) { | |
| 73 return ciType::make(as_type_array_klass()->element_type()); | |
| 74 } else { | |
| 75 ciKlass* ek = as_obj_array_klass()->base_element_klass(); | |
| 76 if (ek->is_type_array_klass()) { | |
| 77 return ciType::make(ek->as_type_array_klass()->element_type()); | |
| 78 } | |
| 79 return ek; | |
| 80 } | |
| 81 } | |
| 82 | |
| 83 | |
| 84 // ------------------------------------------------------------------ | |
| 85 // ciArrayKlass::is_leaf_type | |
| 86 bool ciArrayKlass::is_leaf_type() { | |
| 87 if (is_type_array_klass()) { | |
| 88 return true; | |
| 89 } else { | |
| 90 return as_obj_array_klass()->base_element_klass()->is_leaf_type(); | |
| 91 } | |
| 92 } | |
| 93 | |
| 94 | |
| 95 // ------------------------------------------------------------------ | |
| 96 // ciArrayKlass::base_element_type | |
| 97 // | |
| 98 // What type is obtained when this array is indexed as many times as possible? | |
| 99 ciArrayKlass* ciArrayKlass::make(ciType* element_type) { | |
| 100 if (element_type->is_primitive_type()) { | |
| 101 return ciTypeArrayKlass::make(element_type->basic_type()); | |
| 102 } else { | |
| 103 return ciObjArrayKlass::make(element_type->as_klass()); | |
| 104 } | |
| 105 } |