Mercurial > hg > truffle

annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/type/StampTool.java @ 11356:90201030d3cf

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
remove debug code in StampTool
author Lukas Stadler <lukas.stadler@jku.at>
date Sat, 17 Aug 2013 16:01:48 +0200
parents 8185c119d731
children 307eec0f460f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
1 /*
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
4 *
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
7 * published by the Free Software Foundation.
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
8 *
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
13 * accompanied this code).
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
14 *
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
18 *
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
21 * questions.
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
22 */
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
23 package com.oracle.graal.nodes.type;
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
24
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
25 import java.util.*;
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
26
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
27 import com.oracle.graal.api.meta.*;
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
28
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
29 /**
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
30 * Helper class that is used to keep all stamp-related operations in one place.
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
31 */
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
32 public class StampTool {
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
33
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
34 public static Stamp negate(Stamp stamp) {
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
35 Kind kind = stamp.kind();
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
36 if (stamp instanceof IntegerStamp) {
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
37 IntegerStamp integerStamp = (IntegerStamp) stamp;
6328
6e66d97a16ae Clean up Kind class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6313
diff changeset
38 if (integerStamp.lowerBound() != kind.getMinValue()) {
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
39 // TODO(ls) check if the mask calculation is correct...
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
40 return StampFactory.forInteger(kind, -integerStamp.upperBound(), -integerStamp.lowerBound());
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
41 }
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
42 } else if (stamp instanceof FloatStamp) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
43 FloatStamp floatStamp = (FloatStamp) stamp;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
44 return new FloatStamp(kind, -floatStamp.upperBound(), -floatStamp.lowerBound(), floatStamp.isNonNaN());
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
45 }
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
46
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
47 return StampFactory.forKind(kind);
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
48 }
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
49
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
50 public static Stamp not(Stamp stamp) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
51 if (stamp instanceof IntegerStamp) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
52 IntegerStamp integerStamp = (IntegerStamp) stamp;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
53 assert stamp.kind() == Kind.Int || stamp.kind() == Kind.Long;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
54 long defaultMask = IntegerStamp.defaultMask(stamp.kind());
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
55 return new IntegerStamp(stamp.kind(), ~integerStamp.upperBound(), ~integerStamp.lowerBound(), (~integerStamp.upMask()) & defaultMask, (~integerStamp.downMask()) & defaultMask);
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
56 }
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
57 return StampFactory.forKind(stamp.kind());
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
58 }
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
59
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
60 public static Stamp meet(Collection<? extends StampProvider> values) {
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7489
diff changeset
61 Iterator<? extends StampProvider> iterator = values.iterator();
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
62 if (iterator.hasNext()) {
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
63 Stamp stamp = iterator.next().stamp();
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
64 while (iterator.hasNext()) {
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
65 stamp = stamp.meet(iterator.next().stamp());
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
66 }
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
67 return stamp;
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
68 } else {
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
69 return StampFactory.forVoid();
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
70 }
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
71 }
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
72
11265
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
73 public static Stamp add(Stamp stamp1, Stamp stamp2) {
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
74 if (stamp1 instanceof IntegerStamp && stamp2 instanceof IntegerStamp) {
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
75 return add((IntegerStamp) stamp1, (IntegerStamp) stamp2);
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
76 }
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
77 return StampFactory.illegal();
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
78 }
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
79
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
80 private static long carryBits(long x, long y) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
81 return (x + y) ^ x ^ y;
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
82 }
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
83
11265
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
84 public static Stamp sub(Stamp stamp1, Stamp stamp2) {
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
85 return add(stamp1, StampTool.negate(stamp2));
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
86 }
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
87
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
88 public static Stamp div(Stamp stamp1, Stamp stamp2) {
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
89 if (stamp1 instanceof IntegerStamp && stamp2 instanceof IntegerStamp) {
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
90 return div((IntegerStamp) stamp1, (IntegerStamp) stamp2);
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
91 }
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
92 return StampFactory.illegal();
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
93 }
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
94
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
95 public static Stamp div(IntegerStamp stamp1, IntegerStamp stamp2) {
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
96 assert stamp1.kind() == stamp2.kind();
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
97 Kind kind = stamp1.kind();
6299
1ed726759f65 Add helper methods to IntegerStamp for sign, use them
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 5657
diff changeset
98 if (stamp2.isStrictlyPositive()) {
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
99 long lowerBound = stamp1.lowerBound() / stamp2.lowerBound();
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
100 long upperBound = stamp1.upperBound() / stamp2.lowerBound();
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
101 return StampFactory.forInteger(kind, lowerBound, upperBound);
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
102 }
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
103 return StampFactory.forKind(kind);
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
104 }
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
105
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
106 private static boolean addOverflows(long x, long y, Kind kind) {
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
107 long result = x + y;
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
108 if (kind == Kind.Long) {
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
109 return ((x ^ result) & (y ^ result)) < 0;
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
110 } else {
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
111 assert kind == Kind.Int;
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
112 return result > Integer.MAX_VALUE || result < Integer.MIN_VALUE;
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
113 }
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
114 }
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
115
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
116 public static IntegerStamp add(IntegerStamp stamp1, IntegerStamp stamp2) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
117 try {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
118 if (stamp1.isUnrestricted() || stamp2.isUnrestricted()) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
119 return (IntegerStamp) StampFactory.forKind(stamp1.kind());
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
120 }
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
121 Kind kind = stamp1.kind();
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
122 assert stamp1.kind() == stamp2.kind();
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
123 long defaultMask = IntegerStamp.defaultMask(kind);
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
124 long variableBits = (stamp1.downMask() ^ stamp1.upMask()) | (stamp2.downMask() ^ stamp2.upMask());
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
125 long variableBitsWithCarry = variableBits | (carryBits(stamp1.downMask(), stamp2.downMask()) ^ carryBits(stamp1.upMask(), stamp2.upMask()));
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
126 long newDownMask = (stamp1.downMask() + stamp2.downMask()) & ~variableBitsWithCarry;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
127 long newUpMask = (stamp1.downMask() + stamp2.downMask()) | variableBitsWithCarry;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
128
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
129 newDownMask &= defaultMask;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
130 newUpMask &= defaultMask;
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
131
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
132 long lowerBound;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
133 long upperBound;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
134 if (addOverflows(stamp1.lowerBound(), stamp2.lowerBound(), kind) || addOverflows(stamp1.upperBound(), stamp2.upperBound(), kind)) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
135 lowerBound = kind.getMinValue();
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
136 upperBound = kind.getMaxValue();
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
137 } else {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
138 lowerBound = stamp1.lowerBound() + stamp2.lowerBound();
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
139 upperBound = stamp1.upperBound() + stamp2.upperBound();
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
140 }
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
141 IntegerStamp limit = StampFactory.forInteger(kind, lowerBound, upperBound);
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
142 newUpMask &= limit.upMask();
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
143 return new IntegerStamp(kind, lowerBound | newDownMask, signExtend(upperBound & newUpMask, kind), newDownMask, newUpMask);
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
144 } catch (Throwable e) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
145 throw new RuntimeException(stamp1 + " + " + stamp2, e);
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
146 }
10045
a4e7a7dc74f3 better stamps for OrNodes
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
147 }
a4e7a7dc74f3 better stamps for OrNodes
Lukas Stadler <lukas.stadler@jku.at>
parents: 7530
diff changeset
148
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
149 public static Stamp sub(IntegerStamp stamp1, IntegerStamp stamp2) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
150 if (stamp1.isUnrestricted() || stamp2.isUnrestricted()) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
151 return StampFactory.forKind(stamp1.kind());
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
152 }
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
153 return add(stamp1, (IntegerStamp) StampTool.negate(stamp2));
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
154 }
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
155
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
156 private static Stamp stampForMask(Kind kind, long downMask, long upMask) {
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
157 long lowerBound;
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
158 long upperBound;
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
159 if (((upMask >>> (kind.getBitCount() - 1)) & 1) == 0) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
160 lowerBound = downMask;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
161 upperBound = upMask;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
162 } else if (((downMask >>> (kind.getBitCount() - 1)) & 1) == 1) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
163 lowerBound = downMask;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
164 upperBound = upMask;
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
165 } else {
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
166 lowerBound = upMask;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
167 upperBound = kind.getMaxValue() & upMask;
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
168 }
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
169 if (kind == Kind.Int) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
170 return StampFactory.forInteger(kind, (int) lowerBound, (int) upperBound, downMask, upMask);
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
171 } else {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
172 return StampFactory.forInteger(kind, lowerBound, upperBound, downMask, upMask);
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
173 }
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
174 }
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
175
11265
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
176 public static Stamp and(Stamp stamp1, Stamp stamp2) {
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
177 if (stamp1 instanceof IntegerStamp && stamp2 instanceof IntegerStamp) {
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
178 return and((IntegerStamp) stamp1, (IntegerStamp) stamp2);
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
179 }
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
180 return StampFactory.illegal();
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
181 }
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
182
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
183 public static Stamp and(IntegerStamp stamp1, IntegerStamp stamp2) {
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
184 assert stamp1.kind() == stamp2.kind();
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
185 return stampForMask(stamp1.kind(), stamp1.downMask() & stamp2.downMask(), stamp1.upMask() & stamp2.upMask());
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
186 }
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
187
11265
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
188 public static Stamp or(Stamp stamp1, Stamp stamp2) {
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
189 if (stamp1 instanceof IntegerStamp && stamp2 instanceof IntegerStamp) {
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
190 return or((IntegerStamp) stamp1, (IntegerStamp) stamp2);
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
191 }
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
192 return StampFactory.illegal();
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
193 }
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
194
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
195 public static Stamp or(IntegerStamp stamp1, IntegerStamp stamp2) {
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
196 assert stamp1.kind() == stamp2.kind();
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
197 return stampForMask(stamp1.kind(), stamp1.downMask() | stamp2.downMask(), stamp1.upMask() | stamp2.upMask());
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
198 }
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
199
11265
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
200 public static Stamp xor(Stamp stamp1, Stamp stamp2) {
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
201 if (stamp1 instanceof IntegerStamp && stamp2 instanceof IntegerStamp) {
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
202 return xor((IntegerStamp) stamp1, (IntegerStamp) stamp2);
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
203 }
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
204 return StampFactory.illegal();
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
205 }
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
206
7489
8461d937ac18 Better for Load/Read stamps for non-stack kinds
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 7302
diff changeset
207 public static Stamp xor(IntegerStamp stamp1, IntegerStamp stamp2) {
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
208 assert stamp1.kind() == stamp2.kind();
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
209 long variableBits = (stamp1.downMask() ^ stamp1.upMask()) | (stamp2.downMask() ^ stamp2.upMask());
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
210 long newDownMask = (stamp1.downMask() ^ stamp2.downMask()) & ~variableBits;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
211 long newUpMask = (stamp1.downMask() ^ stamp2.downMask()) | variableBits;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
212 return stampForMask(stamp1.kind(), newDownMask, newUpMask);
7489
8461d937ac18 Better for Load/Read stamps for non-stack kinds
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 7302
diff changeset
213 }
8461d937ac18 Better for Load/Read stamps for non-stack kinds
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 7302
diff changeset
214
11265
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
215 public static Stamp unsignedRightShift(Stamp value, Stamp shift) {
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
216 if (value instanceof IntegerStamp && shift instanceof IntegerStamp) {
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
217 return unsignedRightShift((IntegerStamp) value, (IntegerStamp) shift);
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
218 }
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
219 return StampFactory.illegal();
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
220 }
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
221
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
222 public static Stamp unsignedRightShift(IntegerStamp value, IntegerStamp shift) {
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
223 Kind kind = value.kind();
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
224 if (shift.lowerBound() == shift.upperBound()) {
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
225 long shiftMask = kind == Kind.Int ? 0x1FL : 0x3FL;
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
226 long shiftCount = shift.lowerBound() & shiftMask;
7302
f9f40467383e Fixes for new Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6539
diff changeset
227 if (shiftCount != 0) {
f9f40467383e Fixes for new Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6539
diff changeset
228 long lowerBound;
f9f40467383e Fixes for new Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6539
diff changeset
229 long upperBound;
f9f40467383e Fixes for new Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6539
diff changeset
230 if (value.lowerBound() < 0) {
f9f40467383e Fixes for new Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6539
diff changeset
231 lowerBound = 0;
f9f40467383e Fixes for new Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6539
diff changeset
232 upperBound = IntegerStamp.defaultMask(kind) >>> shiftCount;
f9f40467383e Fixes for new Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6539
diff changeset
233 } else {
f9f40467383e Fixes for new Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6539
diff changeset
234 lowerBound = value.lowerBound() >>> shiftCount;
f9f40467383e Fixes for new Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6539
diff changeset
235 upperBound = value.upperBound() >>> shiftCount;
f9f40467383e Fixes for new Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6539
diff changeset
236 }
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
237 return new IntegerStamp(kind, lowerBound, upperBound, value.downMask() >>> shiftCount, value.upMask() >>> shiftCount);
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
238 }
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
239 }
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
240 long mask = IntegerStamp.upMaskFor(kind, value.lowerBound(), value.upperBound());
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
241 return stampForMask(kind, 0, mask);
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
242 }
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
243
11265
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
244 public static Stamp leftShift(Stamp value, Stamp shift) {
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
245 if (value instanceof IntegerStamp && shift instanceof IntegerStamp) {
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
246 return leftShift((IntegerStamp) value, (IntegerStamp) shift);
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
247 }
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
248 return StampFactory.illegal();
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
249 }
ef6915cf1e59 Add illegal stamp
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 10815
diff changeset
250
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
251 public static Stamp leftShift(IntegerStamp value, IntegerStamp shift) {
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
252 Kind kind = value.kind();
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
253 long defaultMask = IntegerStamp.defaultMask(kind);
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
254 if (value.upMask() == 0) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
255 return value;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
256 }
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
257 int shiftBits = kind == Kind.Int ? 5 : 6;
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
258 long shiftMask = kind == Kind.Int ? 0x1FL : 0x3FL;
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
259 if ((shift.lowerBound() >>> shiftBits) == (shift.upperBound() >>> shiftBits)) {
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
260 long downMask = defaultMask;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
261 long upMask = 0;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
262 for (long i = shift.lowerBound(); i <= shift.upperBound(); i++) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
263 if (shift.contains(i)) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
264 downMask &= value.downMask() << (i & shiftMask);
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
265 upMask |= value.upMask() << (i & shiftMask);
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
266 }
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
267 }
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
268 Stamp result = stampForMask(kind, downMask, upMask & IntegerStamp.defaultMask(kind));
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
269 return result;
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
270 }
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
271 return StampFactory.forKind(kind);
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
272 }
6313
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
273
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
274 public static Stamp intToLong(IntegerStamp intStamp) {
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
275 return StampFactory.forInteger(Kind.Long, intStamp.lowerBound(), intStamp.upperBound(), signExtend(intStamp.downMask(), Kind.Int), signExtend(intStamp.upMask(), Kind.Int));
6313
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
276 }
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
277
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
278 private static IntegerStamp narrowingKindConvertion(IntegerStamp fromStamp, Kind toKind) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
279 assert toKind == Kind.Byte || toKind == Kind.Char || toKind == Kind.Short || toKind == Kind.Int;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
280 final long upperBound;
6328
6e66d97a16ae Clean up Kind class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6313
diff changeset
281 if (fromStamp.lowerBound() < toKind.getMinValue()) {
6e66d97a16ae Clean up Kind class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6313
diff changeset
282 upperBound = toKind.getMaxValue();
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
283 } else {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
284 upperBound = saturate(fromStamp.upperBound(), toKind);
6313
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
285 }
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
286 final long lowerBound;
6328
6e66d97a16ae Clean up Kind class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6313
diff changeset
287 if (fromStamp.upperBound() > toKind.getMaxValue()) {
6e66d97a16ae Clean up Kind class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6313
diff changeset
288 lowerBound = toKind.getMinValue();
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
289 } else {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
290 lowerBound = saturate(fromStamp.lowerBound(), toKind);
6313
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
291 }
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
292
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
293 long defaultMask = IntegerStamp.defaultMask(toKind);
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
294 long intMask = IntegerStamp.defaultMask(Kind.Int);
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
295 long newUpMask = signExtend(fromStamp.upMask() & defaultMask, toKind) & intMask;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
296 long newDownMask = signExtend(fromStamp.downMask() & defaultMask, toKind) & intMask;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
297 return new IntegerStamp(toKind.getStackKind(), (int) ((lowerBound | newDownMask) & newUpMask), (int) ((upperBound | newDownMask) & newUpMask), newDownMask, newUpMask);
6313
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
298 }
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
299
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
300 private static long signExtend(long value, Kind valueKind) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
301 if (valueKind != Kind.Char && (value >>> (valueKind.getBitCount() - 1) & 1) == 1) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
302 return value | (-1L << valueKind.getBitCount());
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
303 } else {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
304 return value;
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
305 }
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
306 }
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
307
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
308 public static IntegerStamp intToByte(IntegerStamp intStamp) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
309 assert intStamp.kind() == Kind.Int;
6313
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
310 return narrowingKindConvertion(intStamp, Kind.Byte);
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
311 }
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
312
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
313 public static IntegerStamp intToShort(IntegerStamp intStamp) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
314 assert intStamp.kind() == Kind.Int;
6313
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
315 return narrowingKindConvertion(intStamp, Kind.Short);
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
316 }
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
317
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
318 public static IntegerStamp intToChar(IntegerStamp intStamp) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
319 assert intStamp.kind() == Kind.Int;
6313
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
320 return narrowingKindConvertion(intStamp, Kind.Char);
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
321 }
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
322
11352
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
323 public static IntegerStamp longToInt(IntegerStamp longStamp) {
8185c119d731 "always set" bit mask on IntegerStamps
Lukas Stadler <lukas.stadler@jku.at>
parents: 11265
diff changeset
324 assert longStamp.kind() == Kind.Long;
6313
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
325 return narrowingKindConvertion(longStamp, Kind.Int);
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
326 }
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
327
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
328 public static long saturate(long v, Kind kind) {
6328
6e66d97a16ae Clean up Kind class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6313
diff changeset
329 long max = kind.getMaxValue();
6313
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
330 if (v > max) {
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
331 return max;
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
332 }
6328
6e66d97a16ae Clean up Kind class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 6313
diff changeset
333 long min = kind.getMinValue();
6313
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
334 if (v < min) {
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
335 return min;
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
336 }
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
337 return v;
7ac010ae8c97 Add inferStamp for a number of ConvertNode's operations
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 6299
diff changeset
338 }
5657
d71eb56d6bb0 new stamp inference in CanonicalizerPhase, IntegerStamp.mask
Lukas Stadler <lukas.stadler@jku.at>
parents:
diff changeset
339 }