Mercurial > hg > truffle

annotate src/share/vm/ci/ciArrayKlass.hpp @ 8733:9def4075da6d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8008079: G1: Add nextObject routine to CMBitMapRO and replace nextWord Summary: Update the task local finger to the start of the next object when marking aborts, in order to avoid the redundant scanning of all 0's when the marking task restarts, if otherwise updating to the next word. In addition, reuse the routine nextObject() in routine iterate(). Reviewed-by: johnc, ysr Contributed-by: tamao <tao.mao@oracle.com>
author tamao
date Tue, 05 Mar 2013 15:36:56 -0800
parents d8ce2825b193
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1 /*
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 3939
diff changeset
2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load
duke
parents:
diff changeset
4 *
a61af66fc99e Initial load
duke
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load
duke
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load
duke
parents:
diff changeset
7 * published by the Free Software Foundation.
a61af66fc99e Initial load
duke
parents:
diff changeset
8 *
a61af66fc99e Initial load
duke
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load
duke
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load
duke
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load
duke
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load
duke
parents:
diff changeset
13 * accompanied this code).
a61af66fc99e Initial load
duke
parents:
diff changeset
14 *
a61af66fc99e Initial load
duke
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load
duke
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load
duke
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load
duke
parents:
diff changeset
18 *
1552
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 0
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 0
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 0
diff changeset
21 * questions.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
22 *
a61af66fc99e Initial load
duke
parents:
diff changeset
23 */
a61af66fc99e Initial load
duke
parents:
diff changeset
24
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
25 #ifndef SHARE_VM_CI_CIARRAYKLASS_HPP
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
26 #define SHARE_VM_CI_CIARRAYKLASS_HPP
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
27
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
28 #include "ci/ciKlass.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
29
0
a61af66fc99e Initial load
duke
parents:
diff changeset
30 // ciArrayKlass
a61af66fc99e Initial load
duke
parents:
diff changeset
31 //
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 3939
diff changeset
32 // This class, and its subclasses represent Klass*s in the
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6725
diff changeset
33 // HotSpot virtual machine whose Klass part is an ArrayKlass.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
34 class ciArrayKlass : public ciKlass {
3939
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 1972
diff changeset
35 CI_PACKAGE_ACCESS
0
a61af66fc99e Initial load
duke
parents:
diff changeset
36 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
37 jint _dimension;
a61af66fc99e Initial load
duke
parents:
diff changeset
38
a61af66fc99e Initial load
duke
parents:
diff changeset
39 protected:
a61af66fc99e Initial load
duke
parents:
diff changeset
40 ciArrayKlass(KlassHandle h_k);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 3939
diff changeset
41 ciArrayKlass(ciSymbol* name, int dimension, BasicType bt);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
42
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6725
diff changeset
43 ArrayKlass* get_ArrayKlass() {
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6725
diff changeset
44 return (ArrayKlass*)get_Klass();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
45 }
a61af66fc99e Initial load
duke
parents:
diff changeset
46
a61af66fc99e Initial load
duke
parents:
diff changeset
47 const char* type_string() { return "ciArrayKlass"; }
a61af66fc99e Initial load
duke
parents:
diff changeset
48
a61af66fc99e Initial load
duke
parents:
diff changeset
49 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
50 jint dimension() { return _dimension; }
a61af66fc99e Initial load
duke
parents:
diff changeset
51 ciType* element_type(); // JLS calls this the "component type"
a61af66fc99e Initial load
duke
parents:
diff changeset
52 ciType* base_element_type(); // JLS calls this the "element type"
a61af66fc99e Initial load
duke
parents:
diff changeset
53 bool is_leaf_type(); // No subtypes of this array type.
a61af66fc99e Initial load
duke
parents:
diff changeset
54
a61af66fc99e Initial load
duke
parents:
diff changeset
55 ciInstance* component_mirror() {
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6725
diff changeset
56 // This is a real field in ArrayKlass, but we derive it from element_type.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
57 return element_type()->java_mirror();
a61af66fc99e Initial load
duke
parents:
diff changeset
58 }
a61af66fc99e Initial load
duke
parents:
diff changeset
59
a61af66fc99e Initial load
duke
parents:
diff changeset
60 // What kind of vmObject is this?
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 3939
diff changeset
61 bool is_array_klass() const { return true; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 3939
diff changeset
62 bool is_java_klass() const { return true; }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
63
a61af66fc99e Initial load
duke
parents:
diff changeset
64 static ciArrayKlass* make(ciType* element_type);
a61af66fc99e Initial load
duke
parents:
diff changeset
65 };
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
66
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
67 #endif // SHARE_VM_CI_CIARRAYKLASS_HPP