Mercurial > hg > graal-compiler
annotate src/share/vm/ci/ciArrayKlass.cpp @ 1766:02f0a9b6f654
6969586: OptimizeStringConcat: SIGSEGV in LoadNode::Value()
Reviewed-by: kvn
author | never |
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date | Mon, 30 Aug 2010 17:27:35 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2005, Oracle and/or its affiliates. All rights reserved. |
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5 * This code is free software; you can redistribute it and/or modify it | |
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12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
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15 * You should have received a copy of the GNU General Public License version | |
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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 #include "incls/_precompiled.incl" | |
26 #include "incls/_ciArrayKlass.cpp.incl" | |
27 | |
28 // ciArrayKlass | |
29 // | |
30 // This class represents a klassOop in the HotSpot virtual machine | |
31 // whose Klass part in an arrayKlass. | |
32 | |
33 // ------------------------------------------------------------------ | |
34 // ciArrayKlass::ciArrayKlass | |
35 // | |
36 // Loaded array klass. | |
37 ciArrayKlass::ciArrayKlass(KlassHandle h_k) : ciKlass(h_k) { | |
38 assert(get_Klass()->oop_is_array(), "wrong type"); | |
39 _dimension = get_arrayKlass()->dimension(); | |
40 } | |
41 | |
42 // ------------------------------------------------------------------ | |
43 // ciArrayKlass::ciArrayKlass | |
44 // | |
45 // Unloaded array klass. | |
46 ciArrayKlass::ciArrayKlass(ciSymbol* name, int dimension, ciKlass* klass) | |
47 : ciKlass(name, klass) { | |
48 _dimension = dimension; | |
49 } | |
50 | |
51 // ------------------------------------------------------------------ | |
52 // ciArrayKlass::element_type | |
53 // | |
54 // What type is obtained when this array is indexed once? | |
55 ciType* ciArrayKlass::element_type() { | |
56 if (is_type_array_klass()) { | |
57 return ciType::make(as_type_array_klass()->element_type()); | |
58 } else { | |
59 return as_obj_array_klass()->element_klass()->as_klass(); | |
60 } | |
61 } | |
62 | |
63 | |
64 // ------------------------------------------------------------------ | |
65 // ciArrayKlass::base_element_type | |
66 // | |
67 // What type is obtained when this array is indexed as many times as possible? | |
68 ciType* ciArrayKlass::base_element_type() { | |
69 if (is_type_array_klass()) { | |
70 return ciType::make(as_type_array_klass()->element_type()); | |
71 } else { | |
72 ciKlass* ek = as_obj_array_klass()->base_element_klass(); | |
73 if (ek->is_type_array_klass()) { | |
74 return ciType::make(ek->as_type_array_klass()->element_type()); | |
75 } | |
76 return ek; | |
77 } | |
78 } | |
79 | |
80 | |
81 // ------------------------------------------------------------------ | |
82 // ciArrayKlass::is_leaf_type | |
83 bool ciArrayKlass::is_leaf_type() { | |
84 if (is_type_array_klass()) { | |
85 return true; | |
86 } else { | |
87 return as_obj_array_klass()->base_element_klass()->is_leaf_type(); | |
88 } | |
89 } | |
90 | |
91 | |
92 // ------------------------------------------------------------------ | |
93 // ciArrayKlass::base_element_type | |
94 // | |
95 // What type is obtained when this array is indexed as many times as possible? | |
96 ciArrayKlass* ciArrayKlass::make(ciType* element_type) { | |
97 if (element_type->is_primitive_type()) { | |
98 return ciTypeArrayKlass::make(element_type->basic_type()); | |
99 } else { | |
100 return ciObjArrayKlass::make(element_type->as_klass()); | |
101 } | |
102 } |