Wed, 27 Apr 2016 01:25:04 +0800
Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17
1 /*
2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
3 * Copyright 2009 Red Hat, Inc.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
26 #ifndef SHARE_VM_SHARK_SHARKCONSTANT_HPP
27 #define SHARE_VM_SHARK_SHARKCONSTANT_HPP
29 #include "ci/ciStreams.hpp"
30 #include "memory/allocation.hpp"
31 #include "shark/sharkBuilder.hpp"
32 #include "shark/sharkValue.hpp"
34 class SharkConstant : public ResourceObj {
35 public:
36 static SharkConstant* for_ldc(ciBytecodeStream* iter);
37 static SharkConstant* for_field(ciBytecodeStream* iter);
39 private:
40 SharkConstant(ciConstant constant, ciType* type);
42 private:
43 SharkValue* _value;
44 ciObject* _object;
45 ciType* _type;
46 bool _is_loaded;
47 bool _is_nonzero;
48 bool _is_two_word;
50 public:
51 bool is_loaded() const {
52 return _is_loaded;
53 }
54 bool is_nonzero() const {
55 assert(is_loaded(), "should be");
56 return _is_nonzero;
57 }
58 bool is_two_word() const {
59 assert(is_loaded(), "should be");
60 return _is_two_word;
61 }
63 public:
64 SharkValue* value(SharkBuilder* builder) {
65 assert(is_loaded(), "should be");
66 if (_value == NULL) {
67 _value = SharkValue::create_generic(
68 _type, builder->CreateInlineOop(_object), _is_nonzero);
69 }
70 return _value;
71 }
72 };
74 #endif // SHARE_VM_SHARK_SHARKCONSTANT_HPP