Mercurial > hg > graal-compiler

annotate graal/GraalCompiler/src/com/sun/c1x/ir/Unwind.java @ 2751:0fe79e7435c3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
More scheduling. Removed need for cfg iteration in the phi simplifier.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Fri, 20 May 2011 14:22:22 +0200
parents a0dd2b907806
children 93fd92c9f8b0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2707
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
1 /*
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
4 *
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
7 * published by the Free Software Foundation.
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
8 *
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
13 * accompanied this code).
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
14 *
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
18 *
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
21 * questions.
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
22 */
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
23 package com.sun.c1x.ir;
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
24
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
25 import com.oracle.graal.graph.*;
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
26 import com.sun.c1x.debug.*;
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
27 import com.sun.cri.ci.*;
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
28
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
29 /**
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
30 * Unwind takes an exception object, destroys the current stack frame and passes the exception object to the system's exception dispatch code.
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
31 */
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
32 public final class Unwind extends BlockEnd {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
33
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
34 private static final int INPUT_COUNT = 1;
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
35 private static final int INPUT_EXCEPTION = 0;
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
36
2751
0fe79e7435c3 More scheduling. Removed need for cfg iteration in the phi simplifier.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2712
diff changeset
37 private static final int SUCCESSOR_COUNT = 1;
0fe79e7435c3 More scheduling. Removed need for cfg iteration in the phi simplifier.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2712
diff changeset
38 private static final int SUCCESSOR_END = 0;
2707
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
39
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
40 @Override
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
41 protected int inputCount() {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
42 return super.inputCount() + INPUT_COUNT;
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
43 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
44
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
45 @Override
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
46 protected int successorCount() {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
47 return super.successorCount() + SUCCESSOR_COUNT;
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
48 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
49
2751
0fe79e7435c3 More scheduling. Removed need for cfg iteration in the phi simplifier.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2712
diff changeset
50 @Override
0fe79e7435c3 More scheduling. Removed need for cfg iteration in the phi simplifier.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2712
diff changeset
51 public Instruction next() {
0fe79e7435c3 More scheduling. Removed need for cfg iteration in the phi simplifier.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2712
diff changeset
52 return null;
0fe79e7435c3 More scheduling. Removed need for cfg iteration in the phi simplifier.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2712
diff changeset
53 }
0fe79e7435c3 More scheduling. Removed need for cfg iteration in the phi simplifier.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2712
diff changeset
54
2707
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
55 /**
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
56 * The instruction that produces the exception object.
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
57 */
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
58 public Value exception() {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
59 return (Value) inputs().get(super.inputCount() + INPUT_EXCEPTION);
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
60 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
61
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
62 public Value setException(Value n) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
63 assert n == null || n.kind == CiKind.Object;
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
64 return (Value) inputs().set(super.inputCount() + INPUT_EXCEPTION, n);
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
65 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
66
2712
a0dd2b907806 Removed implicit safepoints.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2707
diff changeset
67 public Unwind(Value exception, Graph graph) {
a0dd2b907806 Removed implicit safepoints.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2707
diff changeset
68 super(CiKind.Object, null, 0, INPUT_COUNT, SUCCESSOR_COUNT, graph);
2707
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
69 setException(exception);
2751
0fe79e7435c3 More scheduling. Removed need for cfg iteration in the phi simplifier.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2712
diff changeset
70 successors().set(SUCCESSOR_END, graph.end());
2707
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
71 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
72
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
73 @Override
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
74 public void accept(ValueVisitor v) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
75 v.visitUnwind(this);
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
76 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
77
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
78 @Override
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
79 public void print(LogStream out) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
80 out.print(kind.typeChar).print("unwind ").print(exception());
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
81 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
82 }