Mercurial > hg > truffle
annotate src/share/vm/ci/ciType.cpp @ 5073:2db1ad9dd385
rename PiNode.value to PiNode.object and UnsafeCastNode.x to UnsafeCastNode.object
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Wed, 14 Mar 2012 16:57:18 +0100 |
parents | f95d63e2154a |
children | da91efe96a93 |
rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 2000, 2010, 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 | |
6 * under the terms of the GNU General Public License version 2 only, as | |
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 * | |
1552
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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/ciType.hpp" | |
27 #include "ci/ciUtilities.hpp" | |
28 #include "classfile/systemDictionary.hpp" | |
29 #include "oops/oop.inline.hpp" | |
0 | 30 |
31 ciType* ciType::_basic_types[T_CONFLICT+1]; | |
32 | |
33 // ciType | |
34 // | |
35 // This class represents either a class (T_OBJECT), array (T_ARRAY), | |
36 // or one of the primitive types such as T_INT. | |
37 | |
38 // ------------------------------------------------------------------ | |
39 // ciType::ciType | |
40 // | |
41 ciType::ciType(BasicType basic_type) : ciObject() { | |
42 assert(basic_type >= T_BOOLEAN && basic_type <= T_CONFLICT, "range check"); | |
43 assert(basic_type != T_OBJECT && basic_type != T_ARRAY, "not a reference type"); | |
44 _basic_type = basic_type; | |
45 } | |
46 | |
47 ciType::ciType(KlassHandle k) : ciObject(k) { | |
48 _basic_type = Klass::cast(k())->oop_is_array() ? T_ARRAY : T_OBJECT; | |
49 } | |
50 | |
51 ciType::ciType(ciKlass* klass) : ciObject(klass) { | |
52 _basic_type = klass->is_array_klass_klass() ? T_ARRAY : T_OBJECT; | |
53 } | |
54 | |
55 | |
56 // ------------------------------------------------------------------ | |
57 // ciType::is_subtype_of | |
58 // | |
59 bool ciType::is_subtype_of(ciType* type) { | |
60 if (this == type) return true; | |
61 if (is_klass() && type->is_klass()) | |
62 return this->as_klass()->is_subtype_of(type->as_klass()); | |
63 return false; | |
64 } | |
65 | |
66 // ------------------------------------------------------------------ | |
67 // ciType::print_impl | |
68 // | |
69 // Implementation of the print method. | |
70 void ciType::print_impl(outputStream* st) { | |
71 st->print(" type="); | |
72 print_name_on(st); | |
73 } | |
74 | |
75 // ------------------------------------------------------------------ | |
76 // ciType::print_name | |
77 // | |
78 // Print the name of this type | |
79 void ciType::print_name_on(outputStream* st) { | |
80 st->print(type2name(basic_type())); | |
81 } | |
82 | |
83 | |
84 | |
85 // ------------------------------------------------------------------ | |
86 // ciType::java_mirror | |
87 // | |
88 ciInstance* ciType::java_mirror() { | |
89 VM_ENTRY_MARK; | |
90 return CURRENT_THREAD_ENV->get_object(Universe::java_mirror(basic_type()))->as_instance(); | |
91 } | |
92 | |
93 // ------------------------------------------------------------------ | |
94 // ciType::box_klass | |
95 // | |
96 ciKlass* ciType::box_klass() { | |
97 if (!is_primitive_type()) return this->as_klass(); // reference types are "self boxing" | |
98 | |
99 // Void is "boxed" with a null. | |
100 if (basic_type() == T_VOID) return NULL; | |
101 | |
102 VM_ENTRY_MARK; | |
103 return CURRENT_THREAD_ENV->get_object(SystemDictionary::box_klass(basic_type()))->as_instance_klass(); | |
104 } | |
105 | |
106 | |
107 // ------------------------------------------------------------------ | |
108 // ciType::make | |
109 // | |
110 // Produce the ciType for a given primitive BasicType. | |
111 // As a bonus, produce the right reference type for T_OBJECT. | |
112 // Does not work on T_ARRAY. | |
113 ciType* ciType::make(BasicType t) { | |
114 // short, etc. | |
115 // Note: Bare T_ADDRESS means a raw pointer type, not a return_address. | |
116 assert((uint)t < T_CONFLICT+1, "range check"); | |
1142 | 117 if (t == T_OBJECT) return ciEnv::_Object_klass; // java/lang/Object |
0 | 118 assert(_basic_types[t] != NULL, "domain check"); |
119 return _basic_types[t]; | |
120 } | |
121 | |
122 // ciReturnAddress | |
123 // | |
124 // This class represents the type of a specific return address in the | |
125 // bytecodes. | |
126 | |
127 // ------------------------------------------------------------------ | |
128 // ciReturnAddress::ciReturnAddress | |
129 // | |
130 ciReturnAddress::ciReturnAddress(int bci) : ciType(T_ADDRESS) { | |
131 assert(0 <= bci, "bci cannot be negative"); | |
132 _bci = bci; | |
133 } | |
134 | |
135 // ------------------------------------------------------------------ | |
136 // ciReturnAddress::print_impl | |
137 // | |
138 // Implementation of the print method. | |
139 void ciReturnAddress::print_impl(outputStream* st) { | |
140 st->print(" bci=%d", _bci); | |
141 } | |
142 | |
143 // ------------------------------------------------------------------ | |
144 // ciReturnAddress::make | |
145 ciReturnAddress* ciReturnAddress::make(int bci) { | |
146 GUARDED_VM_ENTRY(return CURRENT_ENV->get_return_address(bci);) | |
147 } |