Mercurial > hg > truffle
annotate graal/com.oracle.jvmci.code/src/com/oracle/jvmci/code/RegisterAttributes.java @ 21607:71b338926f2e
moved JVMCI classes into their own distributions (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Fri, 29 May 2015 22:27:38 +0200 |
parents | 48c1ebd24120 |
children |
rev | line source |
---|---|
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
1 /* |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
2 * Copyright (c) 2010, 2011, Oracle and/or its affiliates. All rights reserved. |
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 */ |
21556
48c1ebd24120
renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
19507
diff
changeset
|
23 package com.oracle.jvmci.code; |
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
24 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
25 import java.util.*; |
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 /** |
7530
5e3d1a68664e
applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents:
5552
diff
changeset
|
28 * A collection of register attributes. The specific attribute values for a register may be local to |
5e3d1a68664e
applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents:
5552
diff
changeset
|
29 * a compilation context. For example, a {@link RegisterConfig} in use during a compilation will |
5e3d1a68664e
applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents:
5552
diff
changeset
|
30 * determine which registers are callee saved. |
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
31 */ |
5547
b6617d13ea44
Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5510
diff
changeset
|
32 public class RegisterAttributes { |
7530
5e3d1a68664e
applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents:
5552
diff
changeset
|
33 |
5552
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
34 private final boolean callerSave; |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
35 private final boolean calleeSave; |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
36 private final boolean allocatable; |
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
37 |
5547
b6617d13ea44
Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5510
diff
changeset
|
38 public RegisterAttributes(boolean isCallerSave, boolean isCalleeSave, boolean isAllocatable) { |
5552
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
39 this.callerSave = isCallerSave; |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
40 this.calleeSave = isCalleeSave; |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
41 this.allocatable = isAllocatable; |
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
42 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
43 |
5547
b6617d13ea44
Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5510
diff
changeset
|
44 public static final RegisterAttributes NONE = new RegisterAttributes(false, false, false); |
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
45 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
46 /** |
5547
b6617d13ea44
Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5510
diff
changeset
|
47 * Creates a map from register {@linkplain Register#number numbers} to register |
b6617d13ea44
Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5510
diff
changeset
|
48 * {@linkplain RegisterAttributes attributes} for a given register configuration and set of |
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
49 * registers. |
19507
1cde96b96673
Fixed code format issues.
Roland Schatz <roland.schatz@oracle.com>
parents:
7530
diff
changeset
|
50 * |
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
51 * @param registerConfig a register configuration |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
52 * @param registers a set of registers |
7530
5e3d1a68664e
applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents:
5552
diff
changeset
|
53 * @return an array whose length is the max register number in {@code registers} plus 1. An |
5e3d1a68664e
applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents:
5552
diff
changeset
|
54 * element at index i holds the attributes of the register whose number is i. |
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
55 */ |
5547
b6617d13ea44
Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5510
diff
changeset
|
56 public static RegisterAttributes[] createMap(RegisterConfig registerConfig, Register[] registers) { |
b6617d13ea44
Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5510
diff
changeset
|
57 RegisterAttributes[] map = new RegisterAttributes[registers.length]; |
b6617d13ea44
Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5510
diff
changeset
|
58 for (Register reg : registers) { |
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
59 if (reg != null) { |
5547
b6617d13ea44
Dropping Ci* prefixes. Some additional renamings in the api.code interface.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5510
diff
changeset
|
60 CalleeSaveLayout csl = registerConfig.getCalleeSaveLayout(); |
7530
5e3d1a68664e
applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents:
5552
diff
changeset
|
61 RegisterAttributes attr = new RegisterAttributes(Arrays.asList(registerConfig.getCallerSaveRegisters()).contains(reg), |
5e3d1a68664e
applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents:
5552
diff
changeset
|
62 csl == null ? false : Arrays.asList(csl.registers).contains(reg), Arrays.asList(registerConfig.getAllocatableRegisters()).contains(reg)); |
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
63 if (map.length <= reg.number) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
64 map = Arrays.copyOf(map, reg.number + 1); |
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 map[reg.number] = attr; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
67 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
68 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
69 for (int i = 0; i < map.length; i++) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
70 if (map[i] == null) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
71 map[i] = NONE; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
72 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
73 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
74 return map; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
75 } |
5552
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
76 |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
77 /** |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
78 * @return Denotes a register that is available for use by a register allocator. |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
79 */ |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
80 public boolean isAllocatable() { |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
81 return allocatable; |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
82 } |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
83 |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
84 /** |
7530
5e3d1a68664e
applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents:
5552
diff
changeset
|
85 * @return Denotes a register whose value preservation (if required) across a call is the |
5e3d1a68664e
applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents:
5552
diff
changeset
|
86 * responsibility of the callee. |
5552
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
87 */ |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
88 public boolean isCalleeSave() { |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
89 return calleeSave; |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
90 } |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
91 |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
92 /** |
7530
5e3d1a68664e
applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents:
5552
diff
changeset
|
93 * @return Denotes a register whose value preservation (if required) across a call is the |
5e3d1a68664e
applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents:
5552
diff
changeset
|
94 * responsibility of the caller. |
5552
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
95 */ |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
96 public boolean isCallerSave() { |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
97 return callerSave; |
69a8969dbf40
Reduce public fields in api.code project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5547
diff
changeset
|
98 } |
3733
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
99 } |