Mercurial > hg > graal-compiler

annotate graal/com.oracle.max.graal.lir/src/com/oracle/graal/lir/Variable.java @ 5060:4ed4295ce15f

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Update import statements.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Thu, 08 Mar 2012 19:11:12 +0100
parents ed559a528128
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
1 /*
4182
de7b3e7ae528 Simplify CiValue
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4169
diff changeset
2 * Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved.
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
4 *
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
7 * published by the Free Software Foundation.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
8 *
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
13 * accompanied this code).
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
14 *
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
18 *
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
21 * questions.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
22 */
5060
4ed4295ce15f Update import statements.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5059
diff changeset
23 package com.oracle.graal.lir;
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
24
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
25 import com.oracle.max.cri.ci.*;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
26
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
27 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
28 * Represents a value that is yet to be bound to a machine location (such as
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
29 * a {@link CiRegisterValue} or {@link CiStackSlot}) by a register allocator.
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
30 */
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
31 public final class Variable extends CiValue {
4142
bc8527f3071c Adjust code base to new level of warnings.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3733
diff changeset
32 private static final long serialVersionUID = 4507578431686109809L;
bc8527f3071c Adjust code base to new level of warnings.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3733
diff changeset
33
bc8527f3071c Adjust code base to new level of warnings.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3733
diff changeset
34 /**
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
35 * The identifier of the variable. This is a non-zero index in a contiguous 0-based name space.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
36 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
37 public final int index;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
38
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
39 /**
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
40 * The type of register that this variable needs to get assigned.
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
41 */
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
42 public final CiRegister.RegisterFlag flag;
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
43
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
44 /**
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
45 * Creates a new variable.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
46 * @param kind
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
47 * @param index
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
48 */
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
49 public Variable(CiKind kind, int index, CiRegister.RegisterFlag flag) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
50 super(kind);
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
51 assert kind == kind.stackKind() : "Variables can be only created for stack kinds";
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
52 assert index >= 0;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
53 this.index = index;
4206
430b5db3e6f8 Remove CiVariable from the CRI
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4199
diff changeset
54 this.flag = flag;
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
55 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
56
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
57 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
58 public int hashCode() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
59 return (index << 4) | kind.ordinal();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
60 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
61
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
62 @Override
4169
f5328dda9714 Initial commit of SSA-based spill-all register assignment
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4142
diff changeset
63 public String toString() {
f5328dda9714 Initial commit of SSA-based spill-all register assignment
Christian Wimmer <Christian.Wimmer@Oracle.com>
parents: 4142
diff changeset
64 return "v" + index + kindSuffix();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
65 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
66 }