Mercurial > hg > truffle
annotate graal/GraalCompiler/src/com/sun/c1x/ir/NullCheck.java @ 2853:0635ba16afe4
Reintroduce Logic subclasses, creating some Canonicalization related classes
author | Gilles Duboscq <gilles.duboscq@oracle.com> |
---|---|
date | Tue, 07 Jun 2011 15:52:55 +0200 |
parents | 14708c03abba |
children |
rev | line source |
---|---|
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
1 /* |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
2 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
4 * |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
5 * This code is free software; you can redistribute it and/or modify it |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
6 * under the terms of the GNU General Public License version 2 only, as |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
7 * published by the Free Software Foundation. |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
8 * |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
9 * This code is distributed in the hope that it will be useful, but WITHOUT |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
12 * version 2 for more details (a copy is included in the LICENSE file that |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
13 * accompanied this code). |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
14 * |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
15 * You should have received a copy of the GNU General Public License version |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
16 * 2 along with this work; if not, write to the Free Software Foundation, |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
18 * |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
21 * questions. |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
22 */ |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
23 package com.sun.c1x.ir; |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
24 |
2600
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
25 import com.oracle.graal.graph.*; |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
26 import com.sun.c1x.debug.*; |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
27 import com.sun.c1x.util.*; |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
28 import com.sun.cri.bytecode.*; |
2834
bfce42cd9c07
Graph duplication now passes all tests
Lukas Stadler <lukas.stadler@jku.at>
parents:
2827
diff
changeset
|
29 import com.sun.cri.ci.*; |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
30 import com.sun.cri.ri.*; |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
31 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
32 /** |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
33 * The {@code NullCheck} class represents an explicit null check instruction. |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
34 */ |
2833
1cd59ca9ac86
Removed Throw HIR instruction. Removed special handling for exceptions in register allocator.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2827
diff
changeset
|
35 public final class NullCheck extends Instruction { |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
36 |
2600
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
37 private static final int INPUT_COUNT = 1; |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
38 private static final int INPUT_OBJECT = 0; |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
39 |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
40 private static final int SUCCESSOR_COUNT = 0; |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
41 |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
42 @Override |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
43 protected int inputCount() { |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
44 return super.inputCount() + INPUT_COUNT; |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
45 } |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
46 |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
47 @Override |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
48 protected int successorCount() { |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
49 return super.successorCount() + SUCCESSOR_COUNT; |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
50 } |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
51 |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
52 /** |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
53 * The instruction that produces the object tested against null. |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
54 */ |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
55 public Value object() { |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
56 return (Value) inputs().get(super.inputCount() + INPUT_OBJECT); |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
57 } |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
58 |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
59 public Value setObject(Value n) { |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
60 return (Value) inputs().set(super.inputCount() + INPUT_OBJECT, n); |
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
61 } |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
62 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
63 /** |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
64 * Constructs a new NullCheck instruction. |
2600
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
65 * @param object the instruction producing the object to check against null |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
66 * @param stateBefore the state before executing the null check |
2600
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
67 * @param graph |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
68 */ |
2622
91d3952f7eb7
Framestate work : using stateAFter and reducting the number of nodes with framestates. Intermediate state (does not pass tests)
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2600
diff
changeset
|
69 public NullCheck(Value object, Graph graph) { |
91d3952f7eb7
Framestate work : using stateAFter and reducting the number of nodes with framestates. Intermediate state (does not pass tests)
Gilles Duboscq <gilles.duboscq@oracle.com>
parents:
2600
diff
changeset
|
70 super(object.kind, INPUT_COUNT, SUCCESSOR_COUNT, graph); |
2600
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
71 setObject(object); |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
72 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
73 |
2834
bfce42cd9c07
Graph duplication now passes all tests
Lukas Stadler <lukas.stadler@jku.at>
parents:
2827
diff
changeset
|
74 // for copying |
bfce42cd9c07
Graph duplication now passes all tests
Lukas Stadler <lukas.stadler@jku.at>
parents:
2827
diff
changeset
|
75 private NullCheck(CiKind kind, Graph graph) { |
bfce42cd9c07
Graph duplication now passes all tests
Lukas Stadler <lukas.stadler@jku.at>
parents:
2827
diff
changeset
|
76 super(kind, INPUT_COUNT, SUCCESSOR_COUNT, graph); |
bfce42cd9c07
Graph duplication now passes all tests
Lukas Stadler <lukas.stadler@jku.at>
parents:
2827
diff
changeset
|
77 } |
bfce42cd9c07
Graph duplication now passes all tests
Lukas Stadler <lukas.stadler@jku.at>
parents:
2827
diff
changeset
|
78 |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
79 @Override |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
80 public void accept(ValueVisitor v) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
81 v.visitNullCheck(this); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
82 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
83 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
84 @Override |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
85 public int valueNumber() { |
2600
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
86 return Util.hash1(Bytecodes.IFNONNULL, object()); |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
87 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
88 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
89 @Override |
2805
c3f64b66fc78
Towards removing the next pointer from Constant and ArithmeticOp
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2662
diff
changeset
|
90 public boolean valueEqual(Node i) { |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
91 if (i instanceof NullCheck) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
92 NullCheck o = (NullCheck) i; |
2600
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
93 return object() == o.object(); |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
94 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
95 return false; |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
96 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
97 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
98 @Override |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
99 public RiType declaredType() { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
100 // null check does not alter the type of the object |
2600
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
101 return object().declaredType(); |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
102 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
103 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
104 @Override |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
105 public RiType exactType() { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
106 // null check does not alter the type of the object |
2600
f1bc67c2d453
new node layout: TypeCheck, RegisterFinalizer, Invoke, NewArray, NullCheck
Lukas Stadler <lukas.stadler@jku.at>
parents:
2543
diff
changeset
|
107 return object().exactType(); |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
108 } |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
109 |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
110 @Override |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
111 public void print(LogStream out) { |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
112 out.print("null_check(").print(object()).print(')'); |
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
113 } |
2827
bd17ac598c6e
Graph cloning, initial version (not completely working)
Lukas Stadler <lukas.stadler@jku.at>
parents:
2821
diff
changeset
|
114 |
bd17ac598c6e
Graph cloning, initial version (not completely working)
Lukas Stadler <lukas.stadler@jku.at>
parents:
2821
diff
changeset
|
115 @Override |
bd17ac598c6e
Graph cloning, initial version (not completely working)
Lukas Stadler <lukas.stadler@jku.at>
parents:
2821
diff
changeset
|
116 public Node copy(Graph into) { |
2834
bfce42cd9c07
Graph duplication now passes all tests
Lukas Stadler <lukas.stadler@jku.at>
parents:
2827
diff
changeset
|
117 NullCheck x = new NullCheck(kind, into); |
2827
bd17ac598c6e
Graph cloning, initial version (not completely working)
Lukas Stadler <lukas.stadler@jku.at>
parents:
2821
diff
changeset
|
118 return x; |
bd17ac598c6e
Graph cloning, initial version (not completely working)
Lukas Stadler <lukas.stadler@jku.at>
parents:
2821
diff
changeset
|
119 } |
2507
9ec15d6914ca
Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff
changeset
|
120 } |